WO1998027111A1 - Vacuna para la inmuno-castración reversible de mamíferos - Google Patents
Vacuna para la inmuno-castración reversible de mamíferos Download PDFInfo
- Publication number
- WO1998027111A1 WO1998027111A1 PCT/CU1997/000008 CU9700008W WO9827111A1 WO 1998027111 A1 WO1998027111 A1 WO 1998027111A1 CU 9700008 W CU9700008 W CU 9700008W WO 9827111 A1 WO9827111 A1 WO 9827111A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gnrh
- mammals
- peptide
- hormone
- pro
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K7/00—Peptides having 5 to 20 amino acids in a fully defined sequence; Derivatives thereof
- C07K7/04—Linear peptides containing only normal peptide links
- C07K7/23—Luteinising hormone-releasing hormone [LHRH]; Related peptides
-
- 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
Definitions
- the present invention is related to the field of Genetic Engineering and Biotechnology and in particular to the use of a GnRH derived peptide for the immunocastration of mammals.
- GnRH Glu-His-Trp-Ser-Tyr-Gly-Leu-Arg-Pro-Gly
- a glycine amino acid residue is found at position 6.
- Glycine is the smallest of the amino acids and causes flexibility in the polypeptide chain.
- the replacement of glycine with proline, a residue that confers rigidity, can influence the increase in the immune response. In addition this change cause it that this peptide is foreign to the immune system, stimulating the production of antibodies.
- the production of antibodies against GnRH is achieved by conjugating GnRH to an appropriate carrier protein.
- This conjugation can be done by chemical or genetic engineering methods.
- two carrier proteins widely used for these purposes the BSA protein and an epitope of the tetanus toxoid.
- BSA is conjugated by a known chemical method, tetanus toxoid epitope and GnRh variants are synthesized in a single peptide using two glycine residues as separators.
- chemical synthesis is used because the size of the peptide so permits, if the carrier protein were large, the most feasible route would be by Genetic Engineering, inserting the GnRH variants as part of its amino acid sequence. .
- This procedure is possible to do with virtually any protein, hence it is necessary that the present invention be protected against any protein that may include the sequence of the peptide in question, whether obtained by chemical synthesis or genetic manipulation.
- Boc- protecting group was carried out in all cases with 37.5% trifluoroacetic acid (TFA) in dichloromethane (DCM).
- TFA trifluoroacetic acid
- DCM dichloromethane
- the neutralization of the free aminos was carried out with 5% N, N-ethyldiisopropylamine in DCM.
- the activation method was used with N, N '-diisipropylcarbodiimide (DIC) in si tu, with the exception of the amino acids Asn and Gln that were activated with DIC and 1-hydroxybenzotriazole (HOBt) in N , N-dimethylformamide (DMF).
- the peptide-resin was treated with the HF mixture (90%): Anisole (10%) for 60 min. at 0 °.
- the crude product was washed with ether, extracted with a 30% acetic acid solution in water and lyophilized.
- the peptides were finally characterized by RP-HPLC on a VYDAC C-18 column (4.6x100) mm and by mass spectrometry using the FAB as an ionization method in a JEOL HX-110HF equipment.
- the peptides were purified by the same procedure but on a preparative VYDAC C-18 column.
- the synthesized peptides were: a) QH SYGLRPG, identified as GnRH sequence corresponding to the gonadotropin-releasing hormone, which is structurally conserved in several mammalian species including the pig. b) QH SYGLRPGGGQYIKANSKFIGITEL, identified as GnRH-TT, where gonadotropin-releasing hormone is conjugated in the N-terminal to an epitope of tetanus toxin
- Figure 2 shows the chromatograms of the GnRH (figure 2a), GnRHml (figure 2b), GnRHTT (figure 2c) and GnRH lTT (figure
- the conjugation of the peptides to BSA was performed by the following protocol: - Weigh the same amount of BSA ⁇ bovine serum albumin, Sigma) as peptide (3 mg).
- Animals A total of fifteen hybrid male pigs from different litters were randomly assigned to five groups of three animals each for the treatment described below.
- Vaccination The five groups were vaccinated the first time between 11 and 12 weeks of age and received a revaccination 8 weeks later. On both occasions each animal was injected intramuscularly into the neck with 2 mL of vaccine. All animals were sacrificed 8 weeks after the second immunization. The first group of animals was vaccinated only with PBS IX and CFA and was used as a negative control of the experiment.
- a second and third group were vaccinated with GnRH-BSA and with GnRH-TT respectively and were used as positive controls considering that GnRH is the endogenous hormone.
- a fourth and a fifth group were vaccinated with the new GnRHml peptide conjugated to BSA (GnRHml-BSA) and the tetanus toxin epitope (GnRHml-TT) respectively.
- the vaccination schedule lasted four months (January - April 1996).
- testicular and epididymal tissue were fixed for histology. After fixing the middle part of each transverse and sagittal section of these tissues, paraffin inclusion and cutting of 5 ⁇ m thick sections were carried out. Staining was performed by the hematoxylin and eosin method.
- Figure 1 Testicles of the placebo groups (left), GnRH-TT (center) and GnRHml-TT (right). The effect produced in the two groups conjugated to the tetanus toxin is evident. Between these two groups, a greater effect of the GnRHml-TT variant can also be observed.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Biochemistry (AREA)
- Biophysics (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Endocrinology (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Peptides Or Proteins (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR9713735-9A BR9713735A (pt) | 1996-12-17 | 1997-12-17 | Vacina para imunocastração reversìvel de mamìferos |
| EP97947684A EP0959079A1 (en) | 1996-12-17 | 1997-12-17 | Vaccine for the reversible immunocastration of mammals |
| CA002275440A CA2275440A1 (en) | 1996-12-17 | 1997-12-17 | Vaccine for the reversible immunocastration of mammals |
| AU53975/98A AU736538B2 (en) | 1996-12-17 | 1997-12-17 | Vaccine preparation for the reversible immunocastration of mammals |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CU1996120A CU22627A1 (es) | 1996-12-17 | 1996-12-17 | Preparado vacunal para la inmuno-castración reversible de mamíferos |
| CU120/96 | 1996-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998027111A1 true WO1998027111A1 (es) | 1998-06-25 |
Family
ID=5459402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CU1997/000008 Ceased WO1998027111A1 (es) | 1996-12-17 | 1997-12-17 | Vacuna para la inmuno-castración reversible de mamíferos |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0959079A1 (es) |
| KR (1) | KR100461732B1 (es) |
| AR (1) | AR009840A1 (es) |
| AU (1) | AU736538B2 (es) |
| BR (1) | BR9713735A (es) |
| CA (1) | CA2275440A1 (es) |
| CU (1) | CU22627A1 (es) |
| UY (1) | UY24815A1 (es) |
| WO (1) | WO1998027111A1 (es) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004058297A1 (es) * | 2002-12-27 | 2004-07-15 | Centro De Ingeniería Genética Y Biotecnología | Combinaciones de factores reguladores del crecimiento y hormonas para el tratamiento de neoplasias |
| WO2010037352A1 (es) | 2008-09-30 | 2010-04-08 | Centro De Ingenieria Genetica Y Biotecnologia | Composición farmacéutica utilizando combinaciones de variantes de la hormona liberadora de las gonadotropinas (gnrh ) como immunógeno |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988000056A1 (en) * | 1986-07-03 | 1988-01-14 | The State Of Victoria | Composition and method for immunological castration and spaying |
| WO1988005308A1 (en) * | 1987-01-14 | 1988-07-28 | Commonwealth Scientific And Industrial Research Or | Anti reproductive hormone |
| EP0501882A2 (fr) * | 1991-03-01 | 1992-09-02 | Rhone Merieux | Procédé d'immunoneutralisation anti-LHRM des animaux domestiques mâles non castrés et peptide pour cela |
| WO1992019746A1 (en) * | 1991-04-29 | 1992-11-12 | Csl Limited | Recombinant immunocastration vaccine and polypeptides useful for same |
-
1996
- 1996-12-17 CU CU1996120A patent/CU22627A1/es unknown
-
1997
- 1997-12-17 EP EP97947684A patent/EP0959079A1/en not_active Withdrawn
- 1997-12-17 AU AU53975/98A patent/AU736538B2/en not_active Ceased
- 1997-12-17 BR BR9713735-9A patent/BR9713735A/pt not_active IP Right Cessation
- 1997-12-17 KR KR10-1999-7005452A patent/KR100461732B1/ko not_active Expired - Fee Related
- 1997-12-17 WO PCT/CU1997/000008 patent/WO1998027111A1/es not_active Ceased
- 1997-12-17 AR ARP970105935A patent/AR009840A1/es unknown
- 1997-12-17 UY UY24815A patent/UY24815A1/es not_active IP Right Cessation
- 1997-12-17 CA CA002275440A patent/CA2275440A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988000056A1 (en) * | 1986-07-03 | 1988-01-14 | The State Of Victoria | Composition and method for immunological castration and spaying |
| WO1988005308A1 (en) * | 1987-01-14 | 1988-07-28 | Commonwealth Scientific And Industrial Research Or | Anti reproductive hormone |
| EP0501882A2 (fr) * | 1991-03-01 | 1992-09-02 | Rhone Merieux | Procédé d'immunoneutralisation anti-LHRM des animaux domestiques mâles non castrés et peptide pour cela |
| WO1992019746A1 (en) * | 1991-04-29 | 1992-11-12 | Csl Limited | Recombinant immunocastration vaccine and polypeptides useful for same |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004058297A1 (es) * | 2002-12-27 | 2004-07-15 | Centro De Ingeniería Genética Y Biotecnología | Combinaciones de factores reguladores del crecimiento y hormonas para el tratamiento de neoplasias |
| WO2010037352A1 (es) | 2008-09-30 | 2010-04-08 | Centro De Ingenieria Genetica Y Biotecnologia | Composición farmacéutica utilizando combinaciones de variantes de la hormona liberadora de las gonadotropinas (gnrh ) como immunógeno |
| KR20110066205A (ko) * | 2008-09-30 | 2011-06-16 | 센트로 데 인제니에리아 제네티카 와이 바이오테크놀로지아 | 면역원으로 성선자극호르몬분비촉진호르몬 결합 변형체를 사용한 약학적 조성물 |
| RU2537138C2 (ru) * | 2008-09-30 | 2014-12-27 | Сентро Де Инхеньерия Хенетика И Биотекнолохия | ФАРМАЦЕВТИЧЕСКАЯ КОМПОЗИЦИЯ С ИСПОЛЬЗОВАНИЕМ КОМБИНИРОВАННЫХ ВАРИАНТОВ ГОНАДОТРОПИН-РИЛИЗИНГ-ГОРМОНА (GnRH) В КАЧЕСТВЕ ИММУНОГЕНА |
| US8999931B2 (en) | 2008-09-30 | 2015-04-07 | Centro De Ingenieria Genetica Y Biotecnologia | Pharmaceutical composition using gonadotropin-releasing hormone (GNRH) combined variants as immunogen |
| US9364524B2 (en) | 2008-09-30 | 2016-06-14 | Centro De Ingenieria Genetica Y Biotecnologia | Pharmaceutical composition using gonadotropin-releasing hormone (GNRH) combined variants as immunogen |
| KR101631896B1 (ko) | 2008-09-30 | 2016-06-20 | 센트로 데 인제니에리아 제네티카 와이 바이오테크놀로지아 | 면역원으로 성선자극호르몬분비촉진호르몬 결합 변형체를 사용한 약학적 조성물 |
Also Published As
| Publication number | Publication date |
|---|---|
| AR009840A1 (es) | 2000-05-03 |
| UY24815A1 (es) | 2001-03-16 |
| KR20000057647A (ko) | 2000-09-25 |
| EP0959079A1 (en) | 1999-11-24 |
| KR100461732B1 (ko) | 2004-12-14 |
| AU5397598A (en) | 1998-07-15 |
| AU736538B2 (en) | 2001-08-02 |
| CU22627A1 (es) | 2000-12-22 |
| CA2275440A1 (en) | 1998-06-25 |
| BR9713735A (pt) | 2000-03-28 |
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