WO2022244908A1 - 항-bcam 항체 또는 그의 항원 결합 단편 - Google Patents
항-bcam 항체 또는 그의 항원 결합 단편 Download PDFInfo
- Publication number
- WO2022244908A1 WO2022244908A1 PCT/KR2021/006816 KR2021006816W WO2022244908A1 WO 2022244908 A1 WO2022244908 A1 WO 2022244908A1 KR 2021006816 W KR2021006816 W KR 2021006816W WO 2022244908 A1 WO2022244908 A1 WO 2022244908A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- antibody
- seq
- amino acid
- acid sequence
- bcam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K16/00—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies
- C07K16/18—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans
- C07K16/28—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
- C07K16/2896—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against molecules with a "CD"-designation, not provided for elsewhere
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K16/00—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies
- C07K16/18—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans
- C07K16/28—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
- C07K16/2878—Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against the NGF-receptor/TNF-receptor superfamily, e.g. CD27, CD30, CD40, CD95
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K39/00—Medicinal preparations containing antigens or antibodies
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
- A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
- A61K47/68—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
- A61K47/6835—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site
- A61K47/6849—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site the antibody targeting a receptor, a cell surface antigen or a cell surface determinant
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K39/00—Medicinal preparations containing antigens or antibodies
- A61K2039/505—Medicinal preparations containing antigens or antibodies comprising antibodies
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2317/00—Immunoglobulins specific features
- C07K2317/20—Immunoglobulins specific features characterized by taxonomic origin
- C07K2317/21—Immunoglobulins specific features characterized by taxonomic origin from primates, e.g. man
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2317/00—Immunoglobulins specific features
- C07K2317/20—Immunoglobulins specific features characterized by taxonomic origin
- C07K2317/24—Immunoglobulins specific features characterized by taxonomic origin containing regions, domains or residues from different species, e.g. chimeric, humanized or veneered
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2317/00—Immunoglobulins specific features
- C07K2317/30—Immunoglobulins specific features characterized by aspects of specificity or valency
- C07K2317/31—Immunoglobulins specific features characterized by aspects of specificity or valency multispecific
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2317/00—Immunoglobulins specific features
- C07K2317/50—Immunoglobulins specific features characterized by immunoglobulin fragments
- C07K2317/56—Immunoglobulins specific features characterized by immunoglobulin fragments variable (Fv) region, i.e. VH and/or VL
- C07K2317/565—Complementarity determining region [CDR]
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2317/00—Immunoglobulins specific features
- C07K2317/60—Immunoglobulins specific features characterized by non-natural combinations of immunoglobulin fragments
- C07K2317/62—Immunoglobulins specific features characterized by non-natural combinations of immunoglobulin fragments comprising only variable region components
- C07K2317/622—Single chain antibody (scFv)
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2317/00—Immunoglobulins specific features
- C07K2317/70—Immunoglobulins specific features characterized by effect upon binding to a cell or to an antigen
- C07K2317/77—Internalization into the cell
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2317/00—Immunoglobulins specific features
- C07K2317/90—Immunoglobulins specific features characterized by (pharmaco)kinetic aspects or by stability of the immunoglobulin
- C07K2317/92—Affinity (KD), association rate (Ka), dissociation rate (Kd) or EC50 value
Definitions
- the present invention relates to anti-BCAM antibodies or antigen-binding fragments thereof, and uses thereof.
- the anti-BCAM antibody or antigen-binding fragment thereof of the present invention can be used for the prevention or treatment of conditions associated with cells expressing BCAM, such as cancer.
- Basal cell adhesion molecule is an Ig superfamily transmembrane protein, also known as Lutheran blood group glycoprotein (Lu). Lu was initially studied as an antigen of the Lutheran blood group system, and BCAM was identified as an up-regulated antigen in ovarian cancer. Lu and BCAM have the same extracellular domain but different cytoplasmic tails. Specifically, BCAM lacks the COOH-terminal 40 amino acids present in the Lu cytoplasmic tail. Furthermore, Lu-specific cytoplasmic regions have SH3 binding motifs, dileucine motifs and potential phosphorylation sites. The common region of the Lu and BCAM cytoplasmic tails contains a spectrin-binding motif. As such, since the structures of BCAM and Lu overlap with each other, it is difficult to distinguish between Lu and BCAM in the actual tissue, and Lu and BCAM are interchangeably referred to as Lu/BCAM or CD239.
- the extracellular domain of BCAM includes one V-set, one C1-set and three I-set domains (V-C1-I-I-I). Since BCAM binds specifically to laminin ⁇ 5, a major component of the basement membrane, it is thought to be involved in cell adhesion to the basement membrane. Laminin ⁇ 5 associates with ⁇ and ⁇ chains to form a heterotrimer, which is found in many basement membranes of normal and diseased tissues. In addition, BCAM promotes migration of lung cancer cells on laminin-511 (LM-511) composed of ⁇ 5, ⁇ 1 and ⁇ 1 chains. Migration of tumor cells on LM-511 is also inhibited in the presence of functional inhibitory antibodies to BCAM. It was confirmed that overexpression of BCAM was observed not only in ovarian carcinoma, but also in skin cancer and hepatocellular carcinoma, and accordingly, BCAM was proposed as a useful antigen for the diagnosis and development of antibody drugs.
- LM-511 laminin-511
- An object of the present invention is to provide an anti-BCAM antibody or antigen-binding fragment thereof that specifically binds to a BCAM protein.
- the present invention also provides uses of these antibodies or antigen-binding fragments for the prevention or treatment of conditions associated with cells expressing BCAM, such as cancer.
- the present invention provides anti-BCAM antibodies or antigen-binding fragments thereof.
- the present invention provides a pharmaceutical composition for preventing or treating cancer comprising the anti-BCAM antibody or antigen-binding fragment thereof.
- the present invention provides antibodies or antigen-binding fragments in the form of antibody-drug conjugates (ADCs) capable of selectively delivering inhibitors to target BCAM-expressing cells.
- ADCs antibody-drug conjugates
- the present invention in one embodiment, the present invention
- a heavy chain CDR1 comprising any one amino acid sequence selected from the group consisting of SEQ ID Nos: 7, 9 and 11;
- a heavy chain CDR2 comprising any one amino acid sequence selected from the group consisting of SEQ ID Nos: 13, 15 and 17;
- a heavy chain CDR3 comprising any one amino acid sequence selected from the group consisting of SEQ ID Nos: 19, 21 and 23;
- a light chain CDR1 comprising any one amino acid sequence selected from the group consisting of SEQ ID Nos: 8, 10 and 12;
- a light chain CDR2 comprising any one amino acid sequence selected from the group consisting of SEQ ID Nos: 14, 16 and 18, and
- a light chain CDR3 comprising any one amino acid sequence selected from the group consisting of SEQ ID Nos: 20, 22 and 24
- anti-BCAM antibody or antigen-binding fragment thereof including a.
- the present invention in one embodiment, the present invention
- Any one heavy chain variable region selected from the group consisting of SEQ ID Nos: 1, 3 and 5; and
- It provides an anti-BCAM antibody or antigen-binding fragment thereof, comprising.
- the antigen-binding fragment of the present invention is Fab, Fab', Fab'-SH, Fv, single chain antibody scFv, F(ab')2 fragment, VL, VH, Diabody, triabody, tetrabody, minibody ((scFV-CH3)2), IgGdeltaCH2, scFv-Fc, (scFv)2-Fc, Fynomer, Dual-affinity re-targeting (DART), TRIDENT.
- the antibody of the present invention may be a chimeric antibody, a humanized antibody or a human antibody, and may be a multispecific antibody.
- the present invention provides a nucleic acid molecule encoding the antibody or antigen-binding fragment thereof and a recombinant expression vector comprising the nucleic acid molecule.
- the present invention also provides a composition for preventing or treating cancer, comprising the antibody or antigen-binding fragment thereof as an active ingredient.
- the pharmaceutical composition may be used in combination with an additional anti-cancer agent, such as another anti-cancer agent or chemotherapeutic agent, or in combination with radiation therapy.
- the present invention also provides a composition for analyzing or detecting a BCAM protein comprising the antibody or antigen-binding fragment thereof.
- the anti-BCAM antibody or antigen-binding fragment thereof of the present invention binds to human BCAM protein with high affinity. Through this, the anti-BCAM antibody or antigen-binding fragment thereof of the present invention can be usefully used for preventing or treating cancer.
- Figure 1 shows the amino acid sequences of the heavy chain variable region (1a) and light chain variable region (1b) of the selected antibody. Sequences in bold and underlined indicate the CDR sequences of each region.
- Figure 2 shows the binding ability of the antibodies of the present invention to BCAM according to ELISA analysis.
- Figure 3 shows the binding ability of the antibody of the present invention to BCAM according to FACS analysis (PBS and human IgG values are overlapped).
- Figure 4 shows the binding ability of the antibodies of the present invention to BCAM according to Octet analysis.
- Figure 5 shows the degree of cellular internalization of the antibodies of the present invention observed by confocal laser scanning microscopy.
- the present invention provides an anti-BCAM antibody or antigen-binding fragment thereof that specifically binds to a BCAM protein.
- an anti-BCAM antibody or antigen-binding fragment thereof of the present invention is provided.
- a heavy chain CDR1 comprising any one amino acid sequence selected from the group consisting of SEQ ID Nos: 7, 9 and 11;
- a heavy chain CDR2 comprising any one amino acid sequence selected from the group consisting of SEQ ID Nos: 13, 15 and 17;
- a heavy chain CDR3 comprising any one amino acid sequence selected from the group consisting of SEQ ID Nos: 19, 21 and 23;
- a light chain CDR1 comprising any one amino acid sequence selected from the group consisting of SEQ ID Nos: 8, 10 and 12;
- a light chain CDR2 comprising any one amino acid sequence selected from the group consisting of SEQ ID Nos: 14, 16 and 18, and
- a light chain CDR3 comprising any one amino acid sequence selected from the group consisting of SEQ ID Nos: 20, 22 and 24
- an anti-BCAM antibody or antigen-binding fragment thereof of the present invention is provided.
- heavy chain CDR2 comprising the amino acid sequence of SEQ ID NO: 13;
- heavy chain CDR3 comprising the amino acid sequence of SEQ ID NO: 19;
- a light chain CDR1 comprising the amino acid sequence of SEQ ID NO: 8;
- a light chain CDR2 comprising the amino acid sequence of SEQ ID NO: 14;
- a light chain CDR3 comprising the amino acid sequence of SEQ ID NO: 20;
- heavy chain CDR2 comprising the amino acid sequence of SEQ ID NO: 15;
- heavy chain CDR3 comprising the amino acid sequence of SEQ ID NO: 21;
- a light chain CDR2 comprising the amino acid sequence of SEQ ID NO: 16;
- a light chain CDR3 comprising the amino acid sequence of SEQ ID NO: 22;
- heavy chain CDR2 comprising the amino acid sequence of SEQ ID NO: 17;
- heavy chain CDR3 comprising the amino acid sequence of SEQ ID NO: 23;
- a light chain CDR1 comprising the amino acid sequence of SEQ ID NO: 12;
- a light chain CDR2 comprising the amino acid sequence of SEQ ID NO: 18;
- a light chain CDR3 comprising the amino acid sequence of SEQ ID NO: 24;
- each chain or variable region thereof includes a specific amino acid sequence means that it includes the entire amino acid sequence, has the entire amino acid sequence, or consists of the amino acid sequence.
- the antibody or antigen-binding fragment thereof comprises a heavy chain CDR1 having the amino acid sequence of SEQ ID NO: 7; heavy chain CDR2 having the amino acid sequence of SEQ ID NO: 13; heavy chain CDR3 having the amino acid sequence of SEQ ID NO: 19; light chain CDR1 having the amino acid sequence of SEQ ID NO: 8; light chain CDR2 having the amino acid sequence of SEQ ID NO: 14; and a light chain CDR3 having the amino acid sequence of SEQ ID NO: 20.
- the antibody or antigen-binding fragment thereof comprises a heavy chain CDR1 consisting essentially of the amino acid sequence of SEQ ID NO: 7; heavy chain CDR2 consisting essentially of the amino acid sequence of SEQ ID NO: 13; a heavy chain CDR3 consisting essentially of the amino acid sequence of SEQ ID NO: 19; a light chain CDR1 consisting essentially of the amino acid sequence of SEQ ID NO: 8; a light chain CDR2 consisting essentially of the amino acid sequence of SEQ ID NO: 14; and a light chain CDR3 consisting essentially of the amino acid sequence of SEQ ID NO: 20.
- the antibody or antigen-binding fragment thereof comprises a heavy chain CDR1 consisting of the amino acid sequence of SEQ ID NO: 7; heavy chain CDR2 consisting of the amino acid sequence of SEQ ID NO: 13; heavy chain CDR3 consisting of the amino acid sequence of SEQ ID NO: 19; light chain CDR1 consisting of the amino acid sequence of SEQ ID NO: 8; light chain CDR2 consisting of the amino acid sequence of SEQ ID NO: 14; and a light chain CDR3 consisting of the amino acid sequence of SEQ ID NO: 20.
- an antibody or antigen-binding fragment thereof comprising a recited amino acid sequence may, essentially or not, include additional amino acid sequences not recited.
- an antibody or antigen-binding fragment thereof consisting essentially of the recited amino acid sequence may contain substitutions of one or more amino acid residues that do not materially affect the properties of the antibody or fragment thereof.
- Each chain or variable region of another antibody or antigen-binding fragment thereof defined herein may also contain, have, or consist of the same amino acid sequence as in the above example.
- Complementarity determining regions refer to the amino acid residues of antibody variable regions that are required for antigen binding. Each variable region typically has three CDR regions identified as CDR1, CDR2, and CDR3.
- an anti-BCAM antibody or antigen-binding fragment thereof of the present invention is provided.
- Any one heavy chain variable region selected from the group consisting of SEQ ID Nos: 1, 3 and 5; and
- an anti-BCAM antibody or antigen-binding fragment thereof of the present invention is provided.
- Antibody variable regions refer to the light and heavy chain portions of an antibody molecule that include the amino acid sequences of the CDRs and framework regions (FRs).
- antibody refers to an immunoglobulin molecule capable of specifically binding to a target, such as a carbohydrate, polynucleotide, lipid, polypeptide, protein, etc., through at least one antigen recognition site located in the variable region of an immunoglobulin molecule. It is a globulin molecule.
- antibody herein is used in the broadest sense and thus includes intact polyclonal or monoclonal antibodies, as well as dimer, multimer, multispecific antibodies (eg bispecific antibodies), antigens thereof Binding fragments, antibody fragments, fusion proteins comprising any other modified arrangement of immunoglobulin molecules comprising antigen recognition sites (eg variable regions), synthetic antibodies (eg "antibody mimetics"), "FynomAbs", etc. are widely used. to include
- immunoglobulin (Ig)M immunoglobulin (Ig)M, IgD, IgG, IgA, and IgE, each containing a heavy chain made from heavy chain constant region genes ⁇ , ⁇ , ⁇ , ⁇ , and ⁇ .
- the light chain and heavy chain of an antibody are divided into a variable region with different amino acid sequences for each antibody and a constant region with the same amino acid sequence.
- Each domain consists of two ⁇ -sheets with an intramolecular disulfide bond connecting them.
- An antibody comprising a heavy chain variable region comprising the amino acid sequence of SEQ ID NO: 1 and a light chain variable region comprising the amino acid sequence of SEQ ID NO: 2 herein is referred to as "111a", a heavy chain variable region comprising the amino acid sequence of SEQ ID NO: 3, and a sequence
- An antibody comprising a light chain variable region comprising the amino acid sequence of SEQ ID NO: 4 is "111b", an antibody comprising a heavy chain variable region comprising the amino acid sequence of SEQ ID NO: 5 and a light chain variable region comprising the amino acid sequence of SEQ ID NO: 6 It is referred to as "111c”.
- Antibodies of the present invention may be chimeric, humanized, or human.
- chimeric antibody refers to an antibody in which the variable region sequences are from one species and the constant region sequences are from another species, e.g., the variable region sequences are from a mouse antibody and the constant region sequences are from a mouse antibody. It means an antibody derived from a human antibody.
- Methods of making chimeric antibodies are known in the art. For example, reference may be made to Morrison, Science 229:1202 (1985) and the like, which are incorporated herein by reference in their entirety.
- humanized antibody refers to the insertion of one or more CDR sequences from the germline of a non-human species, such as another mammalian species, eg, mouse or chicken, into frame work sequences from a human immunoglobulin molecule.
- a non-human species such as another mammalian species, eg, mouse or chicken
- Frame work sequences can be further modified, such as through mutation methods.
- NCBI Database Entez Gene
- Using appropriate sequences reduce the immunogenicity, reduce, enhance or alter the binding, affinity, on-rate, off-rate, affinity, specificity, half-life or any other suitable characteristic of the antibody. can make it
- human antibody refers to antibodies comprising variable regions in which both the frame work and CDR regions are derived from human immunoglobulin sequences.
- the constant regions of antibodies are also derived from human immunoglobulin sequences.
- antibody fragment is typically meant to include at least a portion (eg, one or more CDRs) or variable region of an antigen-binding domain of a parent antibody.
- An antibody fragment retains at least a portion of the binding specificity of the parent antibody.
- antigen-binding fragments examples include Fab, Fab', Fab'-SH, Fv, single chain antibody scFv, F(ab')2 fragment, VL, VH, diabody, triabody ), tetrabody, minibody ((scFV-CH3)2), IgGdeltaCH2, scFv-Fc, (scFv)2-Fc, Fynomer, dual-affinity retargeting -targeting: DART), Anticalins, FN3 Monobodies, DARPins, Affibodies, Affilins, Affimers, Affitins, Alphabodies, Avimers, Im7, VLR, VNAR, Trimab, CrossMab, TRIDENT, Nanobodies, Vi but is not limited to binanobodies or di-sdFv.
- a Fab fragment refers to a monovalent fragment consisting of the VL, VH, CL and CH1 domains.
- Fab' fragments differ from Fab fragments by the addition of a few residues at the carboxy terminus of the CH1 domain, including one or more cysteines from the antibody hinge region.
- Fab'-SH refers to Fab' in which the cysteine residues of the constant domains bear free thiol groups.
- F(ab')2 antibody fragments are produced as pairs of Fab' fragments via a hinge cysteine between the Fab' fragments.
- Fv is the smallest antibody fragment that contains a complete antigen recognition site and antigen binding site. This fragment consists of a dimer of one heavy chain variable region and one light chain variable region in tight, non-covalent association. These two regions fold to form six hypervariable loops (three loops each from the heavy and light chains), which provide amino acid residues for antigen binding and confer antigen-binding specificity to the antibody. However, even a single variable region has the ability to recognize and bind antigen, albeit with lower affinity than the entire binding site.
- Single-chain antibody scFvs are antibody fragments comprising VH and VL antibody domains linked by a single polypeptide chain.
- the scFv polypeptide further comprises a polypeptide linker between the VH and VL domains that allows the scFv to form the desired structure for antigen binding.
- scFv antibody fragment antigen-binding fragment scFv, scFv antibody, antibody scFv, or simply scFv.
- Diabodies consist of a short linker (about 5-10 ⁇ m) between the VH and VL domains, such that intra-chain pairing of the V domains is achieved, resulting in a bivalent fragment, i.e., a fragment with two antigen binding sites. canine residues) to construct scFv fragments.
- Bispecific diabodies are heterodimers composed of two "bridged" scFv fragments in which the VH and VL domains of the two antibodies are on different polypeptide chains.
- a triabody and a tetrabody may comprise three and four polypeptide chains, respectively, and have three antigen binding sites and four antigen binding sites, respectively, which may be the same or different. form parts.
- Fynomer refers to a non-immunoglobulin-derived binding polypeptide derived from the human Fyn SH3 domain.
- Fyn SH3-derived polypeptides are well known in the art and are described, for example, in Grabulovski et al. (2007) JBC, 282, p. 3196-3204], WO 2008/022759 and the like.
- Fynomers can be genetically engineered to be fused with other molecules (such as antibodies) to create “FynomAbs,” ie forms that can be engineered to have dual specificities.
- Dual-affinity re-targeting (DART) and TRIDENT refer to those designed to bind to two or more targets simultaneously.
- DART refers to a dual-specific diabody linked covalently, such as a diabody linked via a C-terminal disulfide bridge, and its specific structure and definition are described in [J. Mol. Biol. (2010) 399, 436-449].
- the antibody or antigen-binding fragment thereof of the present invention may specifically bind to a BCAM protein, such as a human BCAM protein.
- the present invention provides an anti-BCAM antibody or antigen-binding fragment thereof that specifically binds to human BCAM, wherein antibody 111a, 111b, or 111c binds to the same epitope as that binding to human BCAM.
- BCAM antibodies or antigen-binding fragments thereof are provided.
- CDR1, CDR2, and CDR3 of each of the heavy and light chains of the antibody or antigen-binding fragment thereof are 80% or more, preferably, 90% or more of CDR1, CDR2, and CDR3 of each of the heavy and light chains of antibody 111a, 111b or 111c. , particularly preferably have 100% homology.
- each of the heavy and light chains of the antibody or antigen-binding fragment thereof has at least 80%, preferably at least 90%, particularly preferably at least 100% homology with each of the heavy and light chains of antibody 111a, 111b or 111c.
- BCAM is a basal cell adhesion molecule and is a surface glycoprotein that acts as a receptor for laminin, an extracellular matrix protein.
- BCAM is also known as Lutheran blood group glycoprotein (Lu) or CD239, and herein, “BCAM”, “Lu”, “Lu/BCAM”, and “CD239” refer to the same protein and may be used interchangeably with each other. have.
- the term "specifically binds to” or “specific to” means to be deterministic for the presence of a target in the presence of a heterogeneous population of molecules, including biological molecules, and refers to measurable and reproducible interactions such as binding between antibodies.
- an antibody that specifically binds to a particular target binds to that target with greater affinity, with greater avidity, more readily and/or for a longer duration than it does to other targets.
- a particular target e.g., an epitope
- the term "specifically binding to human BCAM protein” means binding to human BCAM protein with an association dissociation equilibrium constant (K D ) of 1 x 10 -7 M or less, preferably 5 x 10 -8 M It may mean an antibody that binds below. Accordingly, the anti-BCAM antibody or antigen-binding fragment thereof of the present invention can bind to human BCAM with an association dissociation equilibrium constant (K D ) of 1 x 10 -7 M or less, preferably with a K D of 5 x 10 -8 M or less. It may be binding to proteins.
- K D values for antibodies can be determined using methods well established in the art.
- a preferred method for determining the KD value of an antibody is surface plasmon resonance (SRP), preferably using a biosensor system such as the Biacore® system, or biolayer interference (Bio-layer Interferometry, BLI) methods such as the Octet® system can be used.
- SRP surface plasmon resonance
- BLI Bio-layer Interferometry
- the K D mentioned herein may be a value obtained through biolayer interferometry using the Octet® system.
- an antibody or antigen-binding fragment thereof of the invention may be conjugated to a drug, i.e., form an antibody-drug conjugate (ADC).
- ADC antibody-drug conjugate
- M an antibody molecule
- L an optional linker or linker unit
- D a suitable drug or prodrug
- n an integer from about 1 to about 20.
- Drugs included in the ADC may be appropriately selected according to therapeutic or diagnostic purposes, as long as they do not interfere with the specific binding of the antibody of the present invention.
- the drug includes, but is not limited to, a cytotoxic agent (eg, a chemotherapeutic agent), a prodrug converting enzyme, a radioactive isotope or compound, or a toxin, and the like.
- a cytotoxic agent eg, a chemotherapeutic agent
- a prodrug converting enzyme e.g., a radioactive isotope or compound, or a toxin, and the like.
- Drugs and linkers that may be included in the ADC and methods for preparing them may be prepared according to methods known in the art. Accordingly, the present invention provides an antibody-drug conjugate comprising an anti-BCAM antibody or antigen-binding fragment thereof.
- the anti-BCAM antibody or antigen-binding fragment thereof of the invention is 150 nM or less, such as 130 nM or less, 100 nM or less, 50 nM or less, 20 nM or less, or 10 nM or less, as measured by an ELISA assay. It binds to the BCAM protein with an EC50 of
- EC50 refers to an in vitro or in vivo assay using an antibody, and refers to the concentration of antibody that elicits a response that is 50% of the maximal response, i.e., an intermediate response between the maximal response and the baseline (baseline). do.
- Another aspect of the invention relates to a nucleic acid molecule encoding an anti-BCAM antibody or antigen-binding fragment thereof of the invention.
- Nucleic acids may be present in whole cells or cell lysates, or may be present in a specifically purified or substantially pure form. Nucleic acids can be isolated from other cellular components or other contaminants, e.g. other cellular nucleic acids or proteins, by standard techniques such as alkaline/SDS treatment, CsCl banding, column chromatography, agarose gel electrophoresis and other sugars. An "isolated” or “isolated substantially pure" nucleic acid when it has been purified and removed by methods well known in the art.
- a nucleic acid of the invention can be, for example, DNA or RNA, and may or may not contain intronic sequences.
- the nucleic acid is a cDNA molecule.
- a nucleic acid molecule of the present invention encodes a light chain region, a heavy chain region, or both light and heavy chain regions of an anti-BCAM antibody or antigen-binding fragment thereof of the present invention, preferably a light chain variable region, a heavy chain variable region. region, or both light and heavy chain variable regions.
- DNA fragments encoding the VL and/or VH regions can be further manipulated, for example by standard recombinant DNA techniques, resulting in variable region genes, full-length antibody chain genes, Fab fragments. gene or scFv gene.
- a VL- or VH-encoding DNA fragment is operably linked to another DNA fragment encoding another protein, such as an antibody constant region or flexible linker.
- the term “operably linked” refers to when two DNA fragments are joined so that the amino acid sequence encoded by the two DNA fragments remains in-frame. .
- the isolated DNA encoding the VH region can be converted to a full-length heavy chain gene by operably linking the VH-encoding DNA to other DNA molecules encoding the heavy chain constant regions (CH1, CH2 and CH3).
- the heavy chain constant region may be an IgG1, IgG2, IgG3, IgG4, IgA, IgE, IgM or IgD constant region.
- the VH-encoding DNA can be operably linked to another DNA molecule encoding only the heavy chain CH1 constant region.
- VL- and VH-encoding DNA fragments can be operably linked to a flexible linker, such as another fragment encoding the amino acid sequence (Gly4-Ser)3, resulting in VL and VH sequences can be expressed as contiguous single-chain proteins with VL and VH regions joined by flexible linkers.
- a flexible linker such as another fragment encoding the amino acid sequence (Gly4-Ser)3, resulting in VL and VH sequences can be expressed as contiguous single-chain proteins with VL and VH regions joined by flexible linkers.
- Nucleic acid sequences of the invention can be isolated from a variety of sources, genetically engineered, amplified and/or recombinantly expressed. Any recombinant expression system can be used, including insect or mammalian systems other than bacteria such as yeast. Nucleic acid manipulations such as, for example, subcloning into expression vectors, labeled probes, sequencing and hybridization can be performed as is known in the art.
- the present invention provides a recombinant expression vector comprising the nucleic acid molecule.
- vector used interchangeably with recombinant vector, cloning vector, expression vector, refers to a DNA molecule capable of self-replication in prokaryotic and/or eukaryotic cells, generally referring to a gene or DNA fragment inserted into a cell. It is used as an intermediate carrier for delivery to the back.
- Vectors are usually replication origins capable of replicating in prokaryotic and/or eukaryotic cells, selectable marker genes capable of conferring resistance to specific conditions/substances such as antibiotic degradation enzymes, promoters capable of transcription of genes in eukaryotic or primary cells, It includes, but is not limited to, translatable sequences.
- vector refers to a circular double-standard DNA loop into which additional DNA fragments can be ligated.
- viral vector in which additional DNA fragments may be ligated into the viral genome.
- Certain vectors are capable of autonomous replication in a host cell into which they are introduced (eg, bacterial vectors having a bacterial origin of replication and episomal mammalian vectors).
- Antibodies or antigen-binding fragments thereof of the present invention can be prepared according to conventionally known methods.
- antibodies or antigen-binding fragments thereof of the invention can be prepared using antibody display technology, such as phage display technology.
- the antibody phage library is cloned in the form of fusion of human antibody heavy and light chain variable region genes to phage surface protein (pIII) in a phagemid vector, expressed in Escherichia coli, and then infected with M13 helper phage, An antibody library displaying antibody fragments (scFv or Fab) having sequences of heavy and light chain variable regions in various combinations on the surface is prepared. From this library, an antibody fragment that binds to a specific antigen is isolated using a panning method, and after characterization of the isolated antibody fragment, it is converted into a “whole IgG” form and expressed in large quantities in animal cells to obtain a specific human monoclonal antibody. produce antibodies
- a naive antibody library using antibody genes already present in the human body may be used, or a synthetic antibody library in which diversity is increased by inserting random synthetic sequences into antibody CDRs may be used.
- phagemid vector is a plasmid DNA having a phage origin of replication, and usually has an antibiotic resistance gene as a selection marker.
- a phagemid vector used for phage display contains the gIII gene or a part thereof of M13 phage, and the scFv gene is ligated to the 5' end of the gIII gene to be expressed through transformants.
- helper phage is a phage that provides genetic information necessary for the assembly of phagemids into phage particles. Since only gIII or part of the phage gene is present in the phagemid, the host cell (transformant) transformed with the phagemid is infected with the helper phage to supply the remaining phage genes. There are types such as M13K07 or VCSM13, and most of them contain antibiotic resistance genes such as kanamycin so that transformants infected with helper phage can be selected. In addition, since the packaging signal is defective, the phagemid gene is selectively assembled into the phage particle rather than the helper phage gene.
- antibodies of the invention are injected with BCAM antigen into test subjects (eg, mice) according to methods well known in the art, followed by isolation of hybridomas expressing antibodies having the desired sequence or functional properties. By doing so, for example, it can be prepared in the form of a monoclonal antibody.
- DNA encoding the monoclonal antibody is readily isolated and sequenced using conventional methods (eg, using oligonucleotide probes capable of binding specifically to genes encoding the heavy and light chains of the monoclonal antibody).
- Hybridoma cells serve as a preferred source of such DNA.
- the DNA can be placed into an expression vector and then used in a host cell, such as E. monoclonal in recombinant host cells by transfection into E. coli cells, simian COS cells, Chinese hamster ovary (CHO) cells, or myeloma cells that do not otherwise produce immunoglobulin proteins Synthesis of raw antibodies can be obtained.
- the antibody or antigen-binding fragment thereof of the present invention is for preventing or treating cancer by specifically binding to BCAM.
- the present invention provides a method for preventing, ameliorating or treating cancer, comprising administering an effective amount of an anti-BCAM antibody or antigen-binding fragment thereof to a subject.
- the present invention provides use of an anti-BCAM antibody or antigen-binding fragment thereof for the prevention, amelioration or treatment of cancer.
- the present invention provides a pharmaceutical composition for preventing, improving or treating cancer, comprising an anti-BCAM antibody or an antigen-binding fragment thereof.
- the anti-BCAM antibody or antigen-binding fragment thereof may be included in an effective amount in a pharmaceutical composition.
- Non-human animals include all vertebrates, such as mammals and non-mammals, including non-human primates, sheep, dogs, cats, cows, horses, chickens, amphibians, and reptiles, but include For example, mammals such as non-human primates, sheep, dogs, cats, cattle and horses are preferred. Preferred subjects are humans in need of prevention or treatment of cancer.
- the anti-BCAM antibody or antigen-binding fragment thereof of the present invention can effectively bind to cancer cells expressing BCAM by specifically binding to BCAM protein, thereby inhibiting the growth of cancer cells in vivo, thereby preventing cancer. It can be usefully used to prevent, improve or treat.
- BCAM is associated with tumor migration, and furthermore, its overexpression is known to appear especially in skin cancer, ovarian cancer, pancreatic cancer, breast cancer, etc. (refer to F.R.M. Latini et al., Blood Cells, Molecules and Diseases 50 (2013) 161-165, etc.) .
- the anti-BCAM antibody of the present invention can be used for all cancers in which tumor migration is observed, such as metastatic cancer, and can also be used in specific carcinomas in which overexpression thereof is observed.
- cancers for which growth may be inhibited using the antibodies of the present invention include melanoma (eg metastatic malignant melanoma), renal cancer (eg clear cell carcinoma), prostate cancer (eg , hormone-refractory prostate adenocarcinoma), breast cancer, colorectal cancer, rectal cancer, colon and lung cancer (eg, non-small cell lung cancer), bone cancer, pancreatic cancer, liver cancer, skin cancer, head or neck cancer, uterine cancer, ovarian cancer, rectal cancer, anus Bowel cancer, stomach cancer, testicular cancer, fallopian tube carcinoma, endometrial carcinoma, cervical carcinoma, vaginal carcinoma, female vulvar carcinoma, Hodgkin's disease, non-Hodgkin's lymphoma, esophageal cancer, small intestine cancer, endocrine system cancer, thyroid cancer, parathyroid cancer , adrenal cancer, soft tissue sarcoma, urethral cancer, penile cancer, chronic and acute leukemias such as acute myelog
- the antibody or antigen-binding fragment thereof of the present invention can be used for the prevention or treatment of cancer by specifically binding to BCAM protein to form an antibody-drug conjugate (ADC).
- ADC antibody-drug conjugate
- the present invention provides an anti-BCAM antibody or antigen-binding fragment in the form of a conjugated drug.
- the drug includes, but is not limited to, a cytotoxic agent (eg, a chemotherapeutic agent), a prodrug converting enzyme, a radioactive isotope or compound, or a toxin, and the like.
- Drugs and linkers that can be included in the ADC and methods for preparing them may be prepared according to methods known in the art.
- Antibodies or antigen-binding fragments of the present invention may be used alone or in combination with other anti-cancer therapies.
- Other anti-cancer therapies include, for example, standard cancer therapies (eg, chemotherapy, radiation therapy or surgery); or other anti-cancer agents such as cytotoxic agents, cytostatic agents, anti-hormonal agents, anti-angiogenic or anti-metabolite agents, targeted anti-cancer agents, immune stimulating or immunomodulating agents, immune checkpoint inhibitors or cytotoxic agents, cytostatic agents , and antibodies conjugated to other toxic agents.
- the antibody or antigen-binding fragment of the present invention can be used in combination therapy with other anticancer agents, such as immune checkpoint inhibitors, chemotherapeutic agents, or radiation therapy.
- the immune checkpoint inhibitor is, for example, an anti-CTLA-4 antibody (eg ipilimumab), an anti-PD-1 antibody (eg pembrolizumab, nivolumab), or an anti-PD-L1 antibody (eg atezolizumab, avelumab, durvalumab) ) can be.
- an anti-CTLA-4 antibody eg ipilimumab
- an anti-PD-1 antibody eg pembrolizumab, nivolumab
- an anti-PD-L1 antibody eg atezolizumab, avelumab, durvalumab
- chemotherapeutic agents include alkylating agents, antimetabolites, kinase inhibitors, spindle toxic plant alkaloids, cytotoxic/antitumor antibiotics, topoisomerase inhibitors, photosensitizers, antiestrogens and selective estrogen receptor modulators (SERMs), antiprogesterones, estrogen receptor downregulators (ERDs), estrogen receptor antagonists, luteinizing hormone releasing hormone agonists, antiandrogens, aromatase inhibitors, EGFR inhibitors, VEGF inhibitors, antisense oligonucleotides that inhibit the expression of genes implicated in abnormal cell proliferation or tumor growth; , but not limited to this.
- chemotherapeutic agent of the present invention include gemcitabine, vinorelbine, etoposide (VP-16), platinum analogs such as cisplatin or carboplatin, taxoids such as paclitaxel and albumin. -Includes conjugated paclitaxel, docetaxel, and the like.
- the antibodies or antigen-binding fragments of the present invention When used together with other anticancer drugs, they can be administered separately or applied in the form of a combination product in which a plurality of active ingredients are present in one pharmaceutical preparation. When they are administered in separate formulations, the two formulations may be administered sequentially or simultaneously. In the case of simultaneous administration, they are given to the patient together. In the case of sequential administration, tours may be given over a period of time that is not too long, for example, administered to the patient within a period of 12 hours or less, or 6 hours or less.
- the present invention provides a method for preventing, ameliorating or treating cancer, comprising administering to a subject an effective amount of an antibody or antigen-binding fragment in combination with an additional anti-cancer agent.
- the anti-BCAM antibody or antigen-binding fragment is simultaneously administered together with an additional anticancer agent in one composition, as well as simultaneously or sequentially administering a composition containing each separately to a patient in need thereof.
- the present invention provides the use of an anti-BCAM antibody or antigen-binding fragment thereof for use in combination with an additional anti-cancer agent for the prevention, amelioration or treatment of cancer.
- the present invention provides a pharmaceutical composition or combination comprising an anti-BCAM antibody or antigen-binding fragment thereof and an additional anti-cancer agent for preventing, ameliorating or treating cancer.
- a pharmaceutical composition or combination comprising an anti-BCAM antibody or antigen-binding fragment thereof, and an additional anti-cancer agent herein is not only when the two components physically exist together in the form of one formulation, but also simultaneously or sequentially as separate formulations. or sequentially administered, in which case the two drugs may be provided individually or may be provided together in one kit. Accordingly, the present invention provides a kit for preventing, improving or treating cancer, comprising an anti-BCAM antibody or antigen-binding fragment thereof, and an additional anticancer agent.
- compositions of therapeutic and diagnostic agents can be prepared by mixing with physiologically acceptable carriers, excipients or stabilizers in the form of, for example, lyophilized powders, slurries, aqueous solutions or suspensions.
- Suitable routes of administration include parenteral administration, such as intramuscular, intravenous, or subcutaneous administration.
- Administration of the antibody used in the pharmaceutical composition of the present invention or used to practice the method of the present invention is performed by various conventional methods such as topical application or dermal, subcutaneous, intraperitoneal, parenteral, intraarterial or intravenous injection. can do.
- an antibody of the invention is administered intravenously or subcutaneously.
- Example 1 Preparation of BCAM-specific antibodies through phage display
- Antibodies of the present invention were prepared through a phage display method.
- cDNA was synthesized by amplifying the mRNA of the heavy and light chain variable regions of the antibody obtained from human blood or bone marrow by PCR. After cloning into a phagemid vector using a restriction enzyme, it was expressed by electroporation in E. coli . Then, by infecting the helper phage, a human library in scFv form was prepared.
- Antibodies that bind to the target antigen, BCAM, with high affinity were screened for the library through biopanning. Positive clones binding to BCAM were selected, and a unique scFv sequence was selected for BCAM through sequencing.
- the light and heavy chain regions of the scFv selected in Example 1.1 were cloned into an expression vector.
- the DNA was transiently transfected and cultured to express the antibody, and the culture was conjugated to kappa region capture to elute the antibody to prepare three anti-BCAM human IgG4 antibodies (111a, 111b, 111c).
- amino acid sequences of the light chain and heavy chain variable regions of each IgG4 antibody and the CDRs of each variable region are shown in Figure 1, Table 1, and Table 2, respectively (sequences shown in bold and underlined in Figure 1 and Table 1 are each CDR indicates)
- SEQ ID NO: 1 111a heavy chain variable region (VH) QVTLKESGPGLVKPSGTLSLTCAVS GGSISSSNWWS WVRQPPGKGLEWIG EIYHSGSTNYNPSLKS RVTISVDKSKNQFSLKLSSVTAADTAVYYCAR AYTVTTTYFDY WGQGTLVTVSS SEQ ID NO: 2 111a light chain variable region (VL) NIQMTQSPSTLSASVGDRVTITC RASQSMSTWLA WYQQKPGRAPKLLIY KASALET GVPSRFSGSGSGTQFTLTISSLQPDDFATYYC QQYDEFAS FGQGTKVEIK SEQ ID NO: 3 111b heavy chain variable region (VH) EVQLVQSGAEVKKPGASVKVSCKAS GYTFTSYYMH WVRQAPGQGLEWMG IINPSGGSTSYAQKFQG RVTMTRDTSTSTVYMELSSLRSEDTAVYYC
- sequence number area order SEQ ID NO: 7 111a VH CDR1 GGSISSSNWWS SEQ ID NO: 8 111a VL CDR1 RASQSMSTWLA SEQ ID NO: 9 111b VH CDR1 GYTFTSYYMH SEQ ID NO: 10 111b VL CDR1 TGNSNNVGNQGAA SEQ ID NO: 11 111c VH CDR1 GFTFSDYYMS SEQ ID NO: 12 111c VL CDR1 TGTSSDVGGYNYVS SEQ ID NO: 13 111a VH CDR2 EIYHSGSTNYNPSLKS SEQ ID NO: 14 111a VL CDR2 KASALET SEQ ID NO: 15 111b VH CDR2 IINPSGGSTSYAQKFQG SEQ ID NO: 16 111b VL CDR2 RNNDRPS SEQ ID NO: 17 111c VH CDR2 YTSSSGSTIYYADSVKG SEQ ID NO: 18 111c VL CDR2
- Example 1 In order to confirm the binding ability of each antibody prepared in Example 1 to the antigen protein (BCAM protein), an enzyme-linked immunosorbent assay (ELISA) test was performed.
- Antigen protein was diluted in PBS buffer, prepared at a concentration of 15 nM, and 50 ⁇ L was coated on each well of a 96 well half plate (Costar, Cat. No. 3690), followed by overnight incubation at 4 °C. The next day, after removing all solutions from the plate, blocking buffer (3% BSA in PBS) was added to each well, followed by incubation at 37 °C for 1 hour.
- the three antibody samples (111a, 111b, and 111c) were serially diluted in blocking buffer from 1 ⁇ M to 7 points (1 pM) at a 10-fold dilution ratio. After the blocking process was completed, the buffer was removed from the well, and 50 ⁇ L of the antibody prepared by dilution was added to each well and incubated at 37 ° C. for 2 hours. Wash with 0.1% PBST (0.1% Tween 20 in PBS) and treat with HRP-conjugated anti-human IgG Fc antibody (ThermoFisher Scientific, Cat. No.: 31423), a secondary antibody for antibody detection, at 37 ° C for 1 hour After that, it was washed again with 0.1% PBST.
- PBST 0.1% Tween 20 in PBS
- HRP-conjugated anti-human IgG Fc antibody ThermoFisher Scientific, Cat. No.: 31423
- Human BCAM antigen was expressed in HEK293FT cells by transfection (using 293FT/BCAM1 plasmid). Transfected HEK293FT cells (1x10 5 cells) were suspended in PBS, and 50 ⁇ l of them were seeded on the plate.
- each anti-BCAM antibody and Isotype control (human IgG) antibody of Example 1 were diluted 12 times through 3-fold dilution starting at a concentration of 45 ⁇ g/ml using PBS, and the plate was plated at an appropriate time and temperature. Incubated. As a negative control, PBS buffer was used.
- the binding ability confirmation test according to BLI for the three antibodies prepared in Example 1 was performed using Octet (Octet QK, ForteBio).
- Reactive 2nd Generation (AR2G) biosensors (Cat. No. 18-5094, Sartorius) are installed and AR2G Reagent Kit (Cat. No. 18-5095) is used. and activated it. Then, the biosensor was put into an antigen solution for 10 minutes to bind human BCAM, and the reaction was terminated by putting it in an ethanolamine solution for 5 minutes.
- the human BCAM-coupled biosensor was placed in a buffer containing the prepared three different antibodies 111a, 111b, and 111c, and the binding reaction was monitored for 5 minutes, and then the dissociation reaction was confirmed for 15 minutes.
- association (Ka) and dissociation (Kd) rate constants were determined by fitting to a 1:1 association model using curve fitting software.
- the antibody of the present invention binds to human BCAM protein with high affinity.
- Example 3 confocal Confirmation of cellular internalization of antibodies through laser scanning microscopy
- the cell slide to be used as a negative control group was fixed using 4% PFA (paraformaldehyde; Sigma, USA) (Fixation, treatment at room temperature for 10 minutes), and the cell slide to be used as a cell internalization induction group was moved to a 37 ° C incubator for 1 hour. After culturing for a while, immobilization was performed using 4% PFA as in the negative control group. Each cell slide after immobilization was completely washed with PBS to remove PFA, and then treated with 0.1% TritonX100 at room temperature for 15 minutes to allow permeabilization of the secondary antibody.
- PFA paraformaldehyde
- a fluorescently conjugated secondary antibody (10 ⁇ g/mL Alexa488-conjugated Goat anti-human IgG; Invitrogen, USA) was added at 4 °C. treated for 1 hour.
- Cell slides completed up to secondary antibody treatment were treated with Hoechst 33342 (Invitrogen, USA) for 3 minutes at room temperature for nuclei staining, washed with PBS, treated with mounting solution (Agilent Technologies, USA), and covered with cover glass. has been completed.
- the degree of cellular internalization of the antibody was observed under a magnification of 400 times using a confocal laser scanning microscope (LSM 710 confocal laser scanning microscopy, Carl Zeiss, Germany).
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Veterinary Medicine (AREA)
- Pharmacology & Pharmacy (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Biophysics (AREA)
- Biochemistry (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Molecular Biology (AREA)
- Genetics & Genomics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Microbiology (AREA)
- Mycology (AREA)
- Cell Biology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Engineering & Computer Science (AREA)
- Peptides Or Proteins (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Medicinal Preparation (AREA)
Abstract
Description
| 서열번호 | 영역 | 서열 |
| 서열번호 1 | 111a 중쇄 가변 영역 (VH) | QVTLKESGPGLVKPSGTLSLTCAVS GGSISSSNWWS WVRQPPGKGLEWIG EIYHSGSTNYNPSLKS RVTISVDKSKNQFSLKLSSVTAADTAVYYCAR AYTVTTTYFDY WGQGTLVTVSS |
| 서열번호 2 | 111a 경쇄 가변 영역 (VL) | NIQMTQSPSTLSASVGDRVTITC RASQSMSTWLA WYQQKPGRAPKLLIY KASALET GVPSRFSGSGSGTQFTLTISSLQPDDFATYYC QQYDEFAS FGQGTKVEIK |
| 서열번호 3 | 111b 중쇄 가변 영역 (VH) | EVQLVQSGAEVKKPGASVKVSCKAS GYTFTSYYMH WVRQAPGQGLEWMG IINPSGGSTSYAQKFQG RVTMTRDTSTSTVYMELSSLRSEDTAVYYCAR DGKGWDYYGSGSPLQY WGQGTLVTVSS |
| 서열번호 4 | 111b 경쇄 가변 영역 (VL) | LPVLTQPPSVSKGLRQTATLTC TGNSNNVGNQGAA WLQQHQGHPPKLLSY RNNDRPS GISERLSASRSGNTASLTITGLQPEDEADYYC SAWDSSLSAWV FGGGTKLTVL |
| 서열번호 5 | 111c 중쇄 가변 영역 (VH) | EVQLVQSGGGLVKPGGSLRLSCAAS GFTFSDYYMS WIRQAPGKGLEWVS YTSSSGSTIYYADSVKG RFTISRDNAKNSLYLQMNSLRAEDTAVYYCAR DITAFDI WGQGTMVTVSS |
| 서열번호 6 | 111c 경쇄 가변 영역 (VL) | LPVLTQPPSASGSPGQSVTISC TGTSSDVGGYNYVS WYQQHPGKAPKLMIY EVNKRPS GVPDRFSGSKSGNTASLTVSGLQAEDEADYYC CSYAGSNNYV FGTGTKVTVL |
| 서열번호 | 영역 | 서열 |
| 서열번호 7 | 111a VH CDR1 | GGSISSSNWWS |
| 서열번호 8 | 111a VL CDR1 | RASQSMSTWLA |
| 서열번호 9 | 111b VH CDR1 | GYTFTSYYMH |
| 서열번호 10 | 111b VL CDR1 | TGNSNNVGNQGAA |
| 서열번호 11 | 111c VH CDR1 | GFTFSDYYMS |
| 서열번호 12 | 111c VL CDR1 | TGTSSDVGGYNYVS |
| 서열번호 13 | 111a VH CDR2 | EIYHSGSTNYNPSLKS |
| 서열번호 14 | 111a VL CDR2 | KASALET |
| 서열번호 15 | 111b VH CDR2 | IINPSGGSTSYAQKFQG |
| 서열번호 16 | 111b VL CDR2 | RNNDRPS |
| 서열번호 17 | 111c VH CDR2 | YTSSSGSTIYYADSVKG |
| 서열번호 18 | 111c VL CDR2 | EVNKRPS |
| 서열번호 19 | 111a VH CDR3 | AYTVTTTYFDY |
| 서열번호 20 | 111a VL CDR3 | QQYDEFAS |
| 서열번호 21 | 111b VH CDR3 | DGKGWDYYGSGSPLQY |
| 서열번호 22 | 111b VL CDR3 | SAWDSSLSAWV |
| 서열번호 23 | 111c VH CDR3 | DITAFDI |
| 서열번호 24 | 111c VL CDR3 | CSYAGSNNYV |
| Abs (nM) | 111a | 111b | 111c |
| 1000 | 2.32 ± 0.04 | 0.76 ± 0.09 | 2.34 ± 0.06 |
| 100 | 2.14 ± 0.03 | 0.46 ± 0.03 | 2.26 ± 0.01 |
| 10 | 1.09 ± 0.03 | 0.43 ± 0.06 | 1.41 ± 0.12 |
| 1 | 0.46 ± 0.06 | 0.33 ± 0.06 | 0.50 ± 0.15 |
| 0.1 | 0.18 ± 0.06 | 0.35 ± 0.07 | 0.31 ± 0.09 |
| 0.01 | 0.11 ± 0.01 | 0.15 ± 0.00 | 0.25 ± 0.19 |
| 0.001 | 0.10 ± 0.01 | 0.10 ± 0.00 | 0.11 ± 0.01 |
| 항체 | 111a | 111b | 111c |
| EC50 (nM) | 12.5 | 126.9 | 7.7 |
| 111a | 111b | 111c | |
| EC50 (μg/ml) | 0.1885 | 0.1709 | 0.0427 |
| Analyte | Ligand | ka (1/Ms) | kd (1/s) | KD (M) |
| 111a | Human BCAM |
1.61 X 105 | 3.97 X 10-4 | 2.47 X 10-9 |
| 111b | 2.34 X 104 | 3.06 X 10-4 | 1.31 X 10-8 | |
| 111c | 3.04 X 106 | 2.55 X 10-4 | 8.40 X 10-11 |
Claims (15)
- 서열번호 7, 9 및 11로 이루어지는 군으로부터 선택되는 어느 하나의 아미노산 서열을 포함하는 중쇄 CDR1,서열번호 13, 15 및 17로 이루어지는 군으로부터 선택되는 어느 하나의 아미노산 서열을 포함하는 중쇄 CDR2,서열번호 19, 21 및 23으로 이루어지는 군으로부터 선택되는 어느 하나의 아미노산 서열을 포함하는 중쇄 CDR3,서열번호 8, 10 및 12로 이루어지는 군으로부터 선택되는 어느 하나의 아미노산 서열을 포함하는 경쇄 CDR1,서열번호 14, 16 및 18로 이루어지는 군으로부터 선택되는 어느 하나의 아미노산 서열을 포함하는 경쇄 CDR2, 및서열번호 20, 22 및 24로 이루어지는 군으로부터 선택되는 어느 하나의 아미노산 서열을 포함하는 경쇄 CDR3을 포함하는, 항-BCAM 항체 또는 그의 항원 결합 단편.
- 제1항에 있어서,(a) 서열번호 7의 아미노산 서열을 포함하는 중쇄 CDR1;서열번호 13의 아미노산 서열을 포함하는 중쇄 CDR2;서열번호 19의 아미노산 서열을 포함하는 중쇄 CDR3;서열번호 8의 아미노산 서열을 포함하는 경쇄 CDR1;서열번호 14의 아미노산 서열을 포함하는 경쇄 CDR2; 및서열번호 20의 아미노산 서열을 포함하는 경쇄 CDR3;(b) 서열번호 9의 아미노산 서열을 포함하는 중쇄 CDR1;서열번호 15의 아미노산 서열을 포함하는 중쇄 CDR2;서열번호 21의 아미노산 서열을 포함하는 중쇄 CDR3;서열번호 10의 아미노산 서열을 포함하는 경쇄 CDR1;서열번호 16의 아미노산 서열을 포함하는 경쇄 CDR2; 및서열번호 22의 아미노산 서열을 포함하는 경쇄 CDR3;또는(c) 서열번호 11의 아미노산 서열을 포함하는 중쇄 CDR1;서열번호 17의 아미노산 서열을 포함하는 중쇄 CDR2;서열번호 23의 아미노산 서열을 포함하는 중쇄 CDR3;서열번호 12의 아미노산 서열을 포함하는 경쇄 CDR1;서열번호 18의 아미노산 서열을 포함하는 경쇄 CDR2; 및서열번호 24의 아미노산 서열을 포함하는 경쇄 CDR3;을 포함하는, 항-BCAM 항체 또는 그의 항원 결합 단편.
- 제1항에 있어서,서열번호 1, 3 및 5로 이루어지는 군으로부터 선택되는 어느 하나의 중쇄 가변 영역; 및서열번호 2, 4 및 6으로 이루어지는 군으로부터 선택되는 어느 하나의 경쇄 가변 영역을 포함하는, 항-BCAM 항체 또는 그의 항원 결합 단편.
- 제1항에 있어서,(a) 서열번호 1의 아미노산 서열을 포함하는 중쇄 가변 영역 및 서열번호 2의 아미노산 서열을 포함하는 경쇄 가변 영역;(b) 서열번호 3의 아미노산 서열을 포함하는 중쇄 가변 영역 및 서열번호 4의 아미노산 서열을 포함하는 경쇄 가변 영역; 또는(c) 서열번호 5의 아미노산 서열을 포함하는 중쇄 가변 영역 및 서열번호 6의 아미노산 서열을 포함하는 경쇄 가변 영역;을 포함하는, 항-BCAM 항체 또는 그의 항원 결합 단편.
- 제1항에 있어서, 상기 항-BCAM 항체는 다중특이적 항체인, 항-BCAM 항체 또는 그의 항원 결합 단편.
- 제1항에 있어서, 상기 항원 결합 단편은 Fab, Fab', Fab'-SH, Fv, 단일 쇄 항체 scFv, F(ab')2 단편, VL, VH, 디아바디(diabody), 트리아바디(triabody), 테트라바디(tetrabody), 미니바디((scFV-CH3)2), IgG델타CH2, scFv-Fc, (scFv)2-Fc, 피노머(Fynomer), 이중 친화성 재표적화(dual-affinity re-targeting, DART), 또는 트리덴트(TRIDENT)인, 항-BCAM 항체 또는 그의 항원 결합 단편.
- 제1항에 있어서, 1 X 10-7 M 이하의 결합 해리 평형 상수 (KD)로 인간 BCAM 단백질에 결합하는 것인, 항-BCAM 항체 또는 그의 항원 결합 단편.
- 제1항에 있어서, 상기 항체는 키메라 항체, 인간화 항체, 또는 인간 항체인 것인, 항-BCAM 항체 또는 그의 항원 결합 단편.
- 제1항 내지 제8항 중 어느 한 항의 항-BCAM 항체 또는 그의 항원 결합 단편을 포함하는 항체-약물 컨쥬게이트(antibody-drug conjugate).
- 제1항 내지 제8항 중 어느 한 항의 항-BCAM 항체 또는 그의 항원 결합 단편을 암호화하는 핵산 분자.
- 제10항의 핵산 분자를 포함하는 재조합 발현 벡터.
- 제1항 내지 제8항 중 어느 한 항의 항-BCAM 항체 또는 그의 항원 결합 단편을 포함하는, 암의 예방 또는 치료용 약학 조성물.
- 제12항에 있어서, 추가 항암제를 더 포함하는, 암의 예방 또는 치료용 약학 조성물.
- 제13항에 있어서, 항- BCAM 항체 또는 그의 항원 결합 단편; 및 추가 항암제는 하나의 제제로 동시에 투여되거나, 또는 별개의 제제로 동시에 또는 순차적으로 투여되는 것인, 암의 예방 또는 치료용 약학 조성물.
- 인간 BCAM에 특이적으로 결합하는 항-BCAM 항체 또는 그의 항원 결합 단편으로서, 항체 111a, 111b 또는 111c이 인간 BCAM에 결합하는 에피토프와 동일한 에피토프에 결합하는, 항-BCAM 항체 또는 그의 항원 결합 단편.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21940919.0A EP4342914A4 (en) | 2021-05-21 | 2021-06-01 | ANTI-BCAM ANTIBODY OR ANTIGEN-BINDING FRAGMENT THEREOF |
| US18/289,063 US20240209112A1 (en) | 2021-05-21 | 2021-06-01 | Anti-bcam antibody or antigen-binding fragment thereof |
| AU2021446021A AU2021446021A1 (en) | 2021-05-21 | 2021-06-01 | Anti-bcam antibody or antigen-binding fragment thereof |
| JP2023565380A JP7737471B2 (ja) | 2021-05-21 | 2021-06-01 | 抗bcam抗体又はその抗原結合フラグメント |
| CN202180098477.6A CN117396507A (zh) | 2021-05-21 | 2021-06-01 | 抗bcam抗体或其抗原结合片段 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020210065517A KR102887692B1 (ko) | 2021-05-21 | 2021-05-21 | 항-bcam 항체 또는 그의 항원 결합 단편 |
| KR10-2021-0065517 | 2021-05-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022244908A1 true WO2022244908A1 (ko) | 2022-11-24 |
Family
ID=84140522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2021/006816 Ceased WO2022244908A1 (ko) | 2021-05-21 | 2021-06-01 | 항-bcam 항체 또는 그의 항원 결합 단편 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20240209112A1 (ko) |
| EP (1) | EP4342914A4 (ko) |
| JP (1) | JP7737471B2 (ko) |
| KR (1) | KR102887692B1 (ko) |
| CN (1) | CN117396507A (ko) |
| AU (1) | AU2021446021A1 (ko) |
| WO (1) | WO2022244908A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025208010A1 (en) * | 2024-03-29 | 2025-10-02 | Dana-Farber Cancer Institute, Inc. | Antibodies targeting human basal cell adhesion molecule |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20240149030A (ko) * | 2023-04-04 | 2024-10-14 | 주식회사 지놈앤컴퍼니 | 항-bcam 항체 및 항체-약물 접합체 |
| KR20250164033A (ko) * | 2024-05-14 | 2025-11-24 | 주식회사 지놈앤컴퍼니 | 항-bcam 항체 및 이의 컨쥬게이트 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008022759A2 (en) | 2006-08-21 | 2008-02-28 | Eidgenoessische Technische Hochschule Zürich | Specific and high affinity binding proteins comprising modified sh3 domains of fyn kinase |
| EP2078732A1 (en) * | 2006-07-10 | 2009-07-15 | Institute for Antibodies Co., Ltd. | Method of classifying antigen, method of identifying antigen, method of obtaining antibody or antibody set, method of constructing antibody panel and antibody or antibody set and use of the same |
| JP2017095417A (ja) * | 2015-11-26 | 2017-06-01 | 学校法人東京薬科大学 | 抗癌剤 |
| US10174095B2 (en) * | 2014-07-21 | 2019-01-08 | Novartis Ag | Nucleic acid encoding a humanized anti-BCMA chimeric antigen receptor |
-
2021
- 2021-05-21 KR KR1020210065517A patent/KR102887692B1/ko active Active
- 2021-06-01 AU AU2021446021A patent/AU2021446021A1/en active Pending
- 2021-06-01 WO PCT/KR2021/006816 patent/WO2022244908A1/ko not_active Ceased
- 2021-06-01 EP EP21940919.0A patent/EP4342914A4/en active Pending
- 2021-06-01 US US18/289,063 patent/US20240209112A1/en active Pending
- 2021-06-01 CN CN202180098477.6A patent/CN117396507A/zh active Pending
- 2021-06-01 JP JP2023565380A patent/JP7737471B2/ja active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2078732A1 (en) * | 2006-07-10 | 2009-07-15 | Institute for Antibodies Co., Ltd. | Method of classifying antigen, method of identifying antigen, method of obtaining antibody or antibody set, method of constructing antibody panel and antibody or antibody set and use of the same |
| WO2008022759A2 (en) | 2006-08-21 | 2008-02-28 | Eidgenoessische Technische Hochschule Zürich | Specific and high affinity binding proteins comprising modified sh3 domains of fyn kinase |
| US10174095B2 (en) * | 2014-07-21 | 2019-01-08 | Novartis Ag | Nucleic acid encoding a humanized anti-BCMA chimeric antigen receptor |
| JP2017095417A (ja) * | 2015-11-26 | 2017-06-01 | 学校法人東京薬科大学 | 抗癌剤 |
Non-Patent Citations (8)
| Title |
|---|
| F.R.M. LATINI ET AL., BLOOD CELLS, MOLECULES AND DISEASES, vol. 50, 2013, pages 161 - 165 |
| GRABULOVSKI ET AL., JBC, vol. 282, 2007, pages 3196 - 3204 |
| J. MOL. BIOL., vol. 399, 2010, pages 436 - 449 |
| KIKKAWA YAMATO, ENOMOTO-OKAWA YURIE, FUJIYAMA AIKO, FUKUHARA TAKESHI, HARASHIMA NOZOMI, SUGAWARA YUMIKA, NEGISHI YOICHI, KATAGIRI : "Internalization of CD239 highly expressed in breast cancer cells: a potential antigen for antibody-drug conjugates", SCIENTIFIC REPORTS, vol. 8, no. 1, 1 December 2018 (2018-12-01), XP093007228, DOI: 10.1038/s41598-018-24961-4 * |
| KIKKAWA YAMATO, MIWA TAKAHIRO, TOHARA YUKIKO, HAMAKUBO TAKAYUKI, NOMIZU MOTOYOSHI: "An Antibody to the Lutheran Glycoprotein (Lu) Recognizing the LU4 Blood Type Variant Inhibits Cell Adhesion to Laminin α5", PLOS ONE, vol. 6, no. 8, pages e23329, XP093007231, DOI: 10.1371/journal.pone.0023329 * |
| MORRISON, SCIENCE, vol. 229, 1985, pages 1202 |
| See also references of EP4342914A4 |
| YAMATO KIKKAWA ET AL., SCIENTIFIC REPORT, vol. 8, no. 1, 26 April 2018 (2018-04-26), pages 6612 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025208010A1 (en) * | 2024-03-29 | 2025-10-02 | Dana-Farber Cancer Institute, Inc. | Antibodies targeting human basal cell adhesion molecule |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117396507A (zh) | 2024-01-12 |
| JP7737471B2 (ja) | 2025-09-10 |
| KR20220157686A (ko) | 2022-11-29 |
| EP4342914A1 (en) | 2024-03-27 |
| JP2024521545A (ja) | 2024-06-03 |
| AU2021446021A1 (en) | 2024-01-18 |
| KR102887692B1 (ko) | 2025-11-18 |
| EP4342914A4 (en) | 2025-06-18 |
| US20240209112A1 (en) | 2024-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7000660B2 (ja) | Ror1抗体組成物及び関連の方法 | |
| WO2020111913A1 (en) | Anti-4-1bb antibody and use thereof | |
| WO2024136594A1 (ko) | 클라우딘-18.2에 특이적으로 결합하는 단클론항체 및 이의 용도 | |
| WO2020076105A1 (ko) | 신규 항-c-kit 항체 | |
| WO2022216014A1 (ko) | 항-cntn4 항체 및 그의 용도 | |
| WO2021006619A1 (ko) | B7-h3에 특이적으로 결합하는 항체 및 그의 용도 | |
| WO2022231032A1 (ko) | 항-cntn4 특이적 항체 및 그의 용도 | |
| WO2021107566A1 (ko) | C-kit에 대한 항체 및 이의 용도 | |
| WO2022244908A1 (ko) | 항-bcam 항체 또는 그의 항원 결합 단편 | |
| WO2022124765A1 (ko) | Gpc3에 특이적인 항체 및 이의 용도 | |
| WO2021235697A1 (ko) | Cd22에 특이적인 항체 및 이의 용도 | |
| WO2019216675A1 (ko) | 조절 t 세포 표면 항원의 에피토프 및 이에 특이적으로 결합하는 항체 | |
| WO2021118246A1 (en) | Anti-bcma/anti-4-1bb bispecific antibodies and uses thereof | |
| WO2021132746A1 (en) | Anti-bcma/anti-4-1bb bispecific antibodies and uses thereof | |
| WO2021235696A1 (ko) | Cd22에 특이적인 항체 및 이의 용도 | |
| WO2020242200A1 (ko) | 엔도텔린 수용체 a 결합력이 향상된 항체 | |
| WO2016084993A1 (ko) | 신규 EGFRvIII 항체 및 이를 포함하는 조성물 | |
| WO2022216079A1 (ko) | Gucy2c 결합 폴리펩타이드 및 그의 용도 | |
| WO2022181992A1 (ko) | Cd22에 특이적인 인간화 항체 및 이의 용도 | |
| WO2020071881A1 (ko) | Pdgf 수용체에 대한 항체 및 이의 용도 | |
| WO2024172363A1 (ko) | 항-cntn4 항체 및 그의 용도 | |
| WO2024210437A1 (ko) | 항-bcam 항체 및 항체-약물 접합체 | |
| WO2022131889A1 (ko) | Taci 단백질의 용도 | |
| WO2023136647A1 (ko) | 항-vegfr2(kdr) 개량 항체를 포함하는 융합단백질 및 이의 용도 | |
| WO2023043156A1 (ko) | 항-vegfr2(kdr) 개량 항체 및 이의 용도 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21940919 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2023565380 Country of ref document: JP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 18289063 Country of ref document: US |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202180098477.6 Country of ref document: CN |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202317086774 Country of ref document: IN |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2021446021 Country of ref document: AU Ref document number: AU2021446021 Country of ref document: AU |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2021940919 Country of ref document: EP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2021446021 Country of ref document: AU Date of ref document: 20210601 Kind code of ref document: A |
|
| ENP | Entry into the national phase |
Ref document number: 2021940919 Country of ref document: EP Effective date: 20231221 |