WO1998045431A1 - Gene associe a la metastase cancereuse - Google Patents
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- WO1998045431A1 WO1998045431A1 PCT/JP1998/001592 JP9801592W WO9845431A1 WO 1998045431 A1 WO1998045431 A1 WO 1998045431A1 JP 9801592 W JP9801592 W JP 9801592W WO 9845431 A1 WO9845431 A1 WO 9845431A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/575—Immunoassay; Biospecific binding assay; Materials therefor for cancer
Definitions
- the present invention relates to a protein associated with cancer metastasis and its gene.
- cancer remains one of the leading causes of death in most developed countries, including Japan.
- the malignancy of this cancer is manifested by the random growth of the cancer cells, the invasion of the cancer cells into surrounding organs, and metastasis to distant organs.
- the majority of cancer deaths are due to recurrence due to metastasis, and if cancer metastasis / invasion can be suppressed, it is possible to completely cure the cancer by surgical removal.
- treatment for localized cancer is considered to be almost established, how to deal with metastasis is the top priority for improving the outcome of cancer treatment. For this reason, analysis of genes involved in cancer cell invasion and metastasis and proteins that are gene products is very important in the development of new cancer treatment methods.
- Murine IMC-HM cells which are highly metastatic liver cells isolated from mouse IMC cells by Arakawa et al., Spontaneously metastasize first to the liver by subcutaneous transplantation into the ventral subcutaneous mouse, and rapidly to the main organs throughout the body. Metastases kill the host about two weeks after transplantation.
- the IMC-LM cells obtained by subculturing the parental IMC cells have almost no metastatic ability, the transplanted mice survive for at least 6 weeks after transplantation, and no metastatic foci at the macroscopic level are observed ( Arakawa, H. et al., Jap. J. Cancer Res., 87, 518-523, (199 6)).
- mice IMC-HM cells have very similar genetic backgrounds, but they showed distinct differences in the ability to naturally metastasize to distant organs.
- the present inventors paid attention to this fact, thought that genes that are key to their metastatic potential were expressed in mouse IMC-HM cells, and made use of the differential display method to detect mouse IMC-LM cells.
- the present inventors succeeded in isolating two mouse cDNA fragments that are candidates for factors that induce cancer metastasis.
- the present inventors also examined the relationship between the expression of isolated mouse cMA and cancer metastasis. Specifically, a vector that expresses the antisense mRNA of one of the isolated mouse cDNAs (mouse “CMAP”) was constructed, and the vector was expressed in IMC-HA1 cells derived from IMC-HM cells. Thus, a plurality of transformants having different antisense mRNA expression levels were prepared. Next, the transformant was transplanted into a mouse and examined for its metastatic potential. As a result, they found that the higher the expression level of the antisense mRNA, the lower the metastasis ability of the transformant.
- the present inventors have produced a human cDNA (human “CMAP”) showing high homology with mouse CMAP by a polymerase chain reaction using a primer prepared based on the nucleotide sequence of the isolated mouse CMAP.
- CMAP human cDNA
- the isolation was successful.
- the present inventors have found that a close relationship between the expression of the isolated protein and cancer metastasis has been confirmed, and thus, by using these proteins and genes, the screening of cancer metastasis inhibitors was found to be possible.
- the present invention relates to novel proteins and genes involved in cancer metastasis, and a method for screening a cancer metastasis inhibitor using the same. More specifically, the present invention relates to (1) SEQ ID NO: 4, 6 Or a protein consisting of the amino acid sequence of any one of the above, or one or more of the amino acid sequences in the protein. A protein having an amino acid sequence in which a number of amino acids have been substituted, deleted, or added and having cancer metastasis activity;
- a DNA that hybridizes with MA consisting of the nucleotide sequence of any of SEQ ID NO: 3, 5, 7, 8, or 37, wherein the DNA encodes a protein having cancer metastasis activity;
- a method for screening a compound having an activity of inhibiting cancer metastasis comprising:
- the present invention relates to a novel cancer metastasis-related protein.
- the nucleotide sequence of the cDNA named "CMAP” isolated by the present inventors is shown in SEQ ID NO: 3, and the amino acid sequence of the protein encoded by the cDNA is shown in SEQ ID NO: 4.
- Mouse “CMAP” cDNA is highly expressed in mouse IMC-HM cells, a cell line derived from mouse IMC cells that cause cancer metastasis, and is also derived from mouse IMC cells but has almost no cancer metastasis ability. It was isolated by differential display as a gene whose expression was not detected in the cells (see Example 1).
- mice When the expression of mouse CMAP in various cancer cells was detected, except for IMC-HA1 cells, M-5076 cells, L5178Y cells, and P388, which mainly formed metastatic lesions in the liver when transplanted from the tail vein of mice, were used. Cells and L1210 cells. On the other hand, B-16-BL6 cells and Colon26 cells, in which expression of mouse “CAP” was hardly confirmed, induced strong lung metastases experimentally, but no liver metastasis was observed. All other cell lines in which mouse CMAP was below the detection limit were almost eliminated and regressed by tail vein transplantation into mice (see Example 7).
- a cDNA having high homology with human “CMAP” (human “CMAP”) can be obtained from human spleen by polymerase chain reaction using a primer prepared based on the nucleotide sequence of mouse “CMAP” cDNA. CDNA) was isolated. The nucleotide sequence is shown in SEQ ID NO: 37, and the amino acid sequence of the protein encoded by the cDNA is shown in SEQ ID NO: 38. Human "CMAP” showed a high homology of 71.6% with the mouse CMAP in the amino acid sequence (see Example 8). This strongly suggests that human “CMAP” has the same function as mouse “CMAP”.
- 16411 and “# 11.24413” both have the same nucleotide sequence except that the terminal lOObp differs before and after, and when encoding a protein of 131 and 126 amino acids with a different N-terminal 20-30 amino acids. it was thought.
- the amino acid sequences of the proteins encoded by the “# 7.116411” cDNA and the “# 11.24413” cDNA are shown in SEQ ID NOs: 6 and 9.
- “# 11.24413” was detected only in IMC-HAI cells and P388 cells derived from mouse IMC-HM cells in cancer cells, and in thymus, lung, spleen and slightly in peripheral blood in normal tissues (Example 6). See). This suggests that most normal tissues are processed to “# 7.16411”, and that “# 1 1.24413” is expressed only in special cells. “# 11.24413” may be a factor conferring specificity such as the rapid spread of IM C-HAI cells throughout the body. Based on these properties, these proteins have activity to inhibit cancer metastasis It can be used for screening compounds.
- the protein of the present invention can be prepared by a method known to those skilled in the art as a natural protein or as a recombinant protein using a genetic recombination technique.
- the natural protein can be prepared, for example, by a method in which an extract of a cell or tissue in which the protein of the present invention is considered to be expressed is subjected to affinity chromatography using the antibody of the present invention described below. It is possible.
- a recombinant protein can be prepared by culturing cells transformed with a DNA encoding the protein of the present invention, as described later.
- the present invention also relates to proteins functionally equivalent to the above proteins (mouse “CMAP”, human “CMAP”, “# 7.16411”, and “# 11.24413”).
- a method for isolating a functionally equivalent protein for example, a method for introducing an amino acid mutation into a protein is known to those skilled in the art. That is, those skilled in the art can use, for example, the Kunkel method (Kunkel, TA et al., Methods Enzymol. 154, 367-382 (1987)), the double primer method (Zoller, MJ and Smith, M., Methods Enzymol.
- the amino acid substitution in the above-mentioned protein (protein consisting of the amino acid sequence of SEQ ID NO: 4, 6, 9, 38) is appropriately performed. It is possible to prepare modified proteins having equivalent functions. Amino acid mutations in proteins can also occur naturally.
- the protein of the present invention also includes a variant in which the amino acid sequence is mutated from the native protein by amino acid substitution, deletion, addition, etc., and which has a function equivalent to that of the native protein. It is.
- “functionally equivalent” means that the protein has cancer metastasis activity.
- the metastasis activity of a protein for example, suppresses the expression or function of the protein in cells capable of metastasis.
- the cells are transplanted into an animal body, and It can be detected by determining the metastatic potential of cancer (see Example 9).
- Amino acid mutations in functionally equivalent proteins are usually within 10%, preferably within 10 amino acids, more preferably within 3 amino acids, and more preferably 1 amino acid, relative to the native protein.
- a protein encoding a DNA encoding the protein and a DNA hybridizing with the DNA and a protein functionally equivalent to the protein described above are also included in the protein of the present invention.
- “functionally equivalent” means that the protein has cancer metastasis activity, as described above.
- Hybridization conditions for the isolation of functionally equivalent proteins are usually the following: hybridisation is performed with 6 x SSC S 40% formamide, 25.C and washing with 1 x SSC, 55 ° C ”. As preferable conditions, hybridization is performed at “6 ⁇ SSC, 40% formamide, 37.C”, and washing is performed at “0.2 ⁇ SSC, 55 ° C.”.
- hybridization is performed at “6 ⁇ SSC, 50 ° formamide, 37 ° C”, and washing is performed at “0.1 ⁇ SS 62 ° C”.
- SSC styrene-maleic anhydride
- washing is performed at “0.1 ⁇ SS 62 ° C”.
- the MA encoding the protein isolated by this is usually It has high homology with the nucleotide sequence of the cDNA encoding the protein (the nucleotide sequence of SEQ ID NO: 3, 5, 7, 8, or 37). High homology refers to at least 70%, preferably 80%, more preferably 90%, more preferably 95% or more sequence identity at the base level.
- the present invention relates to the protein of the present invention (mouse “CMAP”, human “CMAP”,
- the DNA of the present invention is not particularly limited as long as it can encode these proteins, and includes not only cDNA and genomic DNA but also synthetic DNA.
- the DNA of the present invention can be isolated by a method known to those skilled in the art.
- the cDNA is, for example, cMA encoding the protein of the present invention (for example, a cDNA comprising the nucleotide sequence of SEQ ID NO: 3, 5, 7, 8, 37) or a fragment thereof, an RNA complementary thereto, or synthetic O oligo nucleotides comprising a portion 3 2 labeled with a P, evening protein of the present invention is expressed to have cells or tissues, cDNA library derived from the sequence of the cDNA - screening by Haiburidizu to Can be.
- an oligonucleotide corresponding to the nucleotide sequence of the cDNA can be synthesized, and cDNA derived from an appropriate cell or tissue can be amplified and cloned into type III by the polymerase chain reaction.
- Genomic DNA is, for example, cDNA encoding the protein of the present invention.
- a cDNA comprising the nucleotide sequence of SEQ ID NO: 3, 5, 7, 8, 37
- a fragment thereof RNA complementary thereto, or a synthetic sequence containing a part of the sequence of the cDNA.
- labeled oligo nucleotide, etc. 3 2 P it can be screened by Haiburidizu genomic DNA library.
- the synthetic DNA is obtained by chemically synthesizing an oligonucleotide having a partial sequence of, for example, a cDNA encoding the protein of the present invention (for example, a cDNA comprising the nucleotide sequence of SEQ ID NO: 3, 5, 7, 8, 37).
- a cDNA comprising the nucleotide sequence of SEQ ID NO: 3, 5, 7, 8, 37.
- DNA ligase Khorana, HG et al., J. Biol. Chem. 251, 565-570 (1976); Goeddel DV et al., Proc. Natl. Acad. Sci. USA 76, 106-10 (1979).
- the DNA encoding the protein of the present invention (for example, cDNA having the nucleotide sequence of SEQ ID NO: 3, 5, 7, 8, 37) is inserted into an appropriate expression vector, and the vector is
- the protein of the present invention can be prepared as a recombinant protein by culturing a transformant obtained by introducing it into an appropriate cell and purifying the expressed protein.
- the host is Escherichia coli, plasmid vector pET-3 (Rosenberg, AH et al., Gene 56, 125-35 (1987)), pGEX-1 (Smith , DB and Johnson, KS, Gene 67, 31-40 (1988)).
- the transformation of Escherichia coli is carried out by the Hanahan method (Hanahan, D., J. Mol. Biol. 166, 557-580 (1983)) and the electroporation method (Dower, WJ et al., Nucl. Acids Res. 16, 6 127-6145 (1988)).
- Recombinant protein is synthesized in the form of a fusion protein with a histidine residue at the N-terminus, glutathione S-transferase (GST), etc. It can be purified by binding to a resin (Smith, MC et al., J. Biol. Chem. 263, 7211-7215 (1988)).
- GST glutathione S-transferase
- Recombinant protein is synthesized in the form of a fusion protein with a histidine residue at the N-terminus, glutathione S-transferase (GST), etc. It can be purified by binding to a resin (Smith
- pESP-1 (Lu, Q. et al., Gene 200, 135-144 (1997)) and the like are used. Yeast transformation is performed, for example, by the spheroplast method (Beach, D. and Nurse, P., Nature 290, 140 (1981)), the lithium acetate method (Okazaki, K. et al., Nucleic Acids Res. 18, 6485-64 89 (1990)).
- GST glutathione S-transferase
- the recombinant protein can be purified by binding to a GST affinity resin.
- thrombin blood coagulation factor Xa
- thrombin blood coagulation factor Xa
- a vector such as pMSG (Clontech) is used.
- the introduction of recombinant DNA into mammalian cells can be performed using the calcium phosphate method (Graham, FL and van derEb, AJ, Virology 52, 456-467 (1973)), the DEAE-dextran method (Sus sman, DJ and Milman, G., Mol. Cell. Biol.
- the present invention also relates to a DNA that specifically hybridizes with the DNA of the present invention, and has a chain length of at least 15 nucleotides.
- “specifically hybridizes” means that cross-hybridization does not occur with DNA encoding other proteins, preferably under stringent hybridization conditions.
- Such DM can be used as a probe for detecting and isolating DNA encoding the protein of the present invention, and as a primer for amplification.
- the present invention also relates to an antisense DNA against a DNA encoding the protein of the present invention or a part thereof.
- Such antisense DNA is used to suppress the expression of the protein of the present invention.
- the antisense DNA has a chain length of at least 15 bp or more, preferably 100 bp or more, in order to exert its antisense effect, and is usually shorter than 800 bp, preferably shorter than 600 bp.
- the present invention also relates to an antibody that binds to the protein of the present invention.
- the tongue of the present invention An antibody that binds to protein can be prepared by a method known to those skilled in the art (for example, see “New Biochemistry Experiment Lecture 1, Protein 1, 389-406, Tokyo Kagaku Dojin”). The preparation of the polyclonal antibody is performed, for example, as follows. Administer an appropriate amount of the above protein or peptide to immunized animals such as rabbits, guinea pigs, mice, and chickens. Administration may be with an adjuvant (FIA or FCA) that promotes antibody production. Administration is usually performed every few weeks. By performing immunization several times, the antibody titer can be increased.
- FFA adjuvant
- a polyclonal antibody can be prepared by subjecting this antiserum to, for example, ammonium sulfate precipitation, fractionation by anion chromatography, or affinity purification using protein A or immobilized antigen.
- preparation of a monoclonal antibody is performed, for example, as follows. An immunized animal is immunized with the protein of the present invention or its partial peptide in the same manner as described above, and after the final immunization, a spleen or lymph node is collected from the immunized animal.
- the antibody-producing cells and myeloma cells contained in the spleen or lymph node are fused using polyethylene glycol or the like to prepare a hybridoma.
- the desired hybridoma is screened, cultured, and a monoclonal antibody can be prepared from the culture supernatant.
- the monoclonal antibody can be purified, for example, by ammonium sulfate precipitation, fractionation by anion chromatography, or affinity purification using protein A or immobilized antigen.
- the antibody thus prepared is used for affinity purification of the protein of the present invention, as well as for examination of diseases (eg, cancer) caused by abnormal expression of the protein of the present invention, antibody treatment, and protein of the present invention. It can be used to detect the expression level of, for example.
- human antibodies or human antibodies are preferred.
- the human antibody is a mouse-human chimeric antibody
- an antibody gene is isolated from a mouse cell that produces an antibody against the protein of the present invention, and the H chain constant region is recombined into a human IgE H chain constant region gene. It can be prepared by introduction into mouse myeloma cell line J558L (Neuberger, MS et al., Na ture 314, 268-270 (1985)).
- human antibodies can be prepared by immunizing a mouse in which the immune system has been replaced with a human with the protein of the present invention.
- the present invention also relates to a method for screening a compound having an activity of inhibiting cancer metastasis using the protein of the present invention.
- One embodiment of the screening method of the present invention includes (a) a step of bringing a test sample into contact with the protein of the present invention, and (b) a step of selecting a compound having an activity of binding to the protein of the present invention.
- Test samples used for screening include, for example, purified proteins, expression products of genes (including libraries), extracts of tissues or cells, cell culture supernatants, synthetic low molecular compounds, and microbial metabolites. But not limited to these.
- the test compound used for screening is appropriately labeled and used as necessary. Examples of the label include, but are not limited to, radiolabels and fluorescent labels.
- the binding between the protein of the present invention and the test compound can be detected by a label attached to the compound bound to the protein of the present invention (for example, the amount of the binding is detected by radioactivity or fluorescence intensity).
- a label attached to the compound bound to the protein of the present invention for example, the amount of the binding is detected by radioactivity or fluorescence intensity.
- the repo overnight gene Binding can also be detected by detecting activity.
- affinity purification using a column on which the protein of the present invention is immobilized various peptide display methods, for example, the fage display method (F. Parmly and GP Smith, Gene, 73, 305 (1988) ) are known.
- another embodiment of the screening method of the present invention includes: (a) a step of bringing a test sample into contact with cells expressing the protein of the present invention; and (b) a step of bringing the protein of the present invention into contact with the test sample. Detecting the expression level of the protein using an antibody that binds to the protein of the present invention; and (c) detecting the protein level of the present invention in cells that are not contacted with the test sample. Selecting a compound that reduces the expression level of the protein of the present invention as compared with the expression level of the protein. Cells to be treated with a test sample in this screening method are not particularly limited as long as they express the protein of the present invention.
- IMC-HM cells or cells derived therefrom M-5076 cells And L5178Y cells.
- a purified protein, an expression product of a gene (including a library), a tissue or cell extract, a cell culture supernatant, a synthetic low-molecular compound, a microbial metabolite, and the like are used. Not restricted.
- Many known methods can be used as a method for detecting the expression level of the protein of the present invention using an antibody. For example, methods such as ELISA method, immunoprecipitation method, and ⁇ stamp rotting method can be used.
- an antibody is used after labeling as necessary.
- Examples of the label include, but are not limited to, an enzyme label, a radiolabel, and a fluorescent label.
- a molecule that specifically binds to the antibody of the present invention for example, a secondary antibody, protein A, or the like can be labeled and detected.
- Screening can also be performed by detecting mRNA expression in addition to the method for detecting protein expression as described above. Detection of mRNA expression can be performed, for example, by RT-PCR. As a control, for example, G3PDH can be used.
- Compounds isolated by these screening methods are candidates for compounds that inhibit the activity of the protein of the present invention. These compounds can be used as cancer metastasis inhibitors.
- One mode of the method for confirming in vivo is as follows: (a) a step of bringing the compound isolated by the above-mentioned screening method into contact with a cell having cancer metastasis ability; (b) a step of bringing the cell into a test non-human mammal. Transplanting; and (c) detecting cancer metastasis in the test non-human mammal and determining whether the compound has an activity of suppressing cancer metastasis.
- a mouse is used as a test animal as a cell having cancer metastasis ability, for example, mouse IMC-HM cells or Alternatively, cells derived therefrom are preferred. In this case, cells can be transplanted into mice by, for example, subcutaneous transplantation or tail vein transplantation. Cancer metastasis can be detected, for example, by the formation of metastatic foci in the liver.
- Another embodiment of the method for confirming in vivo is a method of directly administering to mice.
- This method comprises the steps of (a) administering the compound isolated by the above screening method to a test non-human mammal, (b) transplanting cells having cancer metastatic potential into the test non-human mammal, (C) detecting cancer metastasis in a test non-human mammal, and determining whether the compound has an activity of suppressing cancer metastasis.
- Examples of the method for administering the compound include oral administration, intraperitoneal administration, tail vein administration, subcutaneous and intradermal administration, and intramuscular administration.
- mouse IMC-HM cells or cells derived therefrom are suitable as cells having cancer metastasis ability.
- Transplantation can be performed by, for example, subcutaneous transplantation, tail vein transplantation, or the like.
- cancer metastasis can be detected, for example, by the formation of a metastatic focus in the liver.
- Figure 1 is an electrophoresis photograph of CMAP expression in various tumor cells detected by Northern protein.
- FIG. 2 is an electrophoresis photograph in which CMAP expression in normal tissues was detected by Northern blotting.
- FIG. 3 is a diagram showing a comparison of the amino acid sequences of CMAP and human
- RNA from IMC-HM and IMC-LM cells was performed using ISOGEN (Futtsubon Gene). That is, 1x10 'cultured cells in the logarithmic growth phase were collected and precipitated by centrifugation. After removing the supernatant of the culture solution by suction, lml of ISOGEN was added, and the mixture was left at room temperature for 5 minutes to lyse the cells. To the mixture was added 0.2 ml of black-mouthed form, stirred vigorously for 15 seconds, allowed to stand at room temperature for several minutes, and then centrifuged at 12,000 g for 15 minutes at 4 ° C.
- ISOGEN Full-Specific Gene
- RNA RNA was separated, an equal volume of isopropanol was added, and the mixture was stirred, left at room temperature for 10 minutes, and then centrifuged again at 12,000 g for 15 minutes with cooling.
- the precipitate of MA was separated, rinsed with ethanol, and then dissolved in 50/1 sterilized purified water treated with DEPC (diethyl pyrocarbonate) to obtain a total A solution.
- DEPC diethyl pyrocarbonate
- MMLV-derived reverse transcriptase Superscript II (GIBCO BRL) and mRNA Fingerprinting Kit (clontech)
- complementary single-stranded DNA was prepared using the obtained total RNA as type III.
- 11 g of cDNA synthesis primer (oligo dT primer) was added to 2 g of total RNA, the total amount was adjusted to 51 with sterilized purified water treated with DEPC, and the mixture was kept at 70 ° C for 3 minutes and then quenched.
- reaction buffer 5x first-strand buffer
- 21 dNTP mix 5 mM each
- lj 1 SuperscriptII 200 units / l
- RNA fingerprinting based on the polymerase chain reaction was performed using this single-stranded cDNA solution.
- Each of the single-stranded cDNA preservation solutions contains 20 l of P primer (Pl-10 / SEQ ID NO: 10 to 19) and 20 l of T primer (T1-9 / SEQ ID NO: 20 to 28) (CL0NTECH). Mix one by one, add the PCR master mix (171), add mineral oil (Sigma), and overlay.
- a plate (20 ⁇ 40 cm) for a sequence gel was assembled using a speaker according to a conventional method.
- the gel and buffer used were a glycerol-resistant 63 ⁇ 4 gel and glycerol-resistant buffer from United States Biochemical.
- the PCR products amplified by the P-Brimer and the T-Bramer were each mixed with 21 reaction stop solutions, heated at 94 ° C for 2-3 minutes, and then cooled. This was added to a glycerol-tolerant gel 31 each and electrophoresed at 35 W for about 3 hours. After the electrophoresis, the gel was transferred onto filter paper and dried at 80 ° C for 2 hours using a gel dryer. The radioactivity in the gel was photographed by leaving it on a BAS2000 imaging plate (Fuji Photo Film Co., Ltd.) and imaged with BAS2000.
- IMC-HM cells genes having significantly different expression levels between IMC-HM cells and IMC-LM cells were searched. If its expression level is biased toward IMC-HM cells, it may be a candidate for a factor that induces metastasis. Conversely, if expression is biased in IMC-LM cells, it may be a candidate for a factor that suppresses metastasis.
- two bands were identified from IMC-HM cells as candidates for factors that induce metastasis. One was from the P2 and T3 primer set and the other was from the P2 and T8 primer set. The former is “23-1” and the latter is “28-1” I named it.
- IMC-HM cell-specific cDNA bands 23-1 and 28-1 were directly excised from the dried gel and boiled together with the gel in 401 sterile purified water for 10 minutes to elute the desired cDNA fragment. This small amount of cDNA fragment was reamplified as follows.
- the PCR product of the cDNA has an A added at its 3'-end and can be cloned directly by a TA-type vector (with a T at the end). Therefore, the reamplified cDNA fragment was cloned using a TA cloning kit (Invitrogen) by the following method. That is, the re-amplified PCR fragment was mixed with 10x ligation buffer (Invitrogen), pCR II vector (registered trademark, Invitrogen) (25 ⁇ g / ml), and sterilized purified water at 9 / l. T4 DNA ligase (Invitrogen) was mixed with each other, and left at 14 ° C overnight to insert cDNA.
- 10x ligation buffer Invitrogen
- pCR II vector registered trademark, Invitrogen
- the vector without the insert reacts with X-Gal and turns blue, while the vector containing the cDNA turns white. According to this principle, ten white colonies were picked, re-cultured for sequencing, and simultaneously made replicas.
- a plasmid was prepared from each transformant using the QIAprep Spin Plasmid Kit (QIAGEN) according to the following procedure.
- Each transformant was cultured in 3 ml of LB medium containing 50 ⁇ g / ml kanamycin at 37 ° C. for about 8 hours, and collected by centrifugation.
- the cells were lysed with 250-1 buffer-PI (QIAGEN), and 2501 buffer P2 (QIAGEN) was added and mixed. Further, Buffer P 3 (QIAGEN) with 350> 1 was added, mixed, and centrifuged at 10,000 ⁇ g for 10 minutes. The supernatant was transferred to a QIAprep spin column (QIAGEN) and centrifuged at 10,000 xg for 1 minute.
- QIAGEN QIAprep spin column
- the nucleotide sequence of the cDNA was determined by the Daiichi-Mine-Toichi method (device used; ABI Model 377). The conditions vary depending on the purification state, concentration, etc. of plasmid ⁇ , which can be used as a base. In general, the sequence of 500-600 bases can be determined at a time by the dilute-to-mine method.
- the pCRII vector has the M13 forward and reverse primer sites near the insertion site. Using each of the fluorescently labeled primers, both duplexes were read and sequenced.
- the enzyme was diluted by mixing 25 1 AmpliTaq, 25 1 5x buffer, and 1251 purified water to prepare premixes for A, G, T and each.
- 100-200 ng /// l of type I DNA11 and A and C premixes were mixed with 4 1 and type2 DNA2 / 1 with G and T premixes 8 1 and 2 separately.
- the cycle sequencing reaction was performed with a Perkin Elmer 9600 at 96 ° C for 2 minutes, 25 cycles of 96 ° C for 10 seconds, 50 ° C for 5 seconds and 60 ° C for 4 minutes.
- IMC_HM cells The establishment of a primary line of IMC_HM cells and IMC-LM cells was performed by the limiting dilution method. Each cell was rolled into a 96-well plate at 4 cells / l Owell, and 10 clones grown from single cells were obtained at random.
- RT-PCR was performed as follows. The preparation of total RNA and the reverse transcriptase reaction were performed in the same manner as described above ((1) and (2) in Example 1). In order to amplify specific cDNA by PCR, single-stranded oligo DNA primers, "23-1 # 2 ⁇ ” (CAGMTCTGCTCATGCAGTC (SEQ ID NO: 29)), “23-1 # 2Rlj (CACTCCTTACTTTCCACCCC (SEQ ID NO: 30) )), "28-l # 3Fl” (AACAGCATTTCCCTA MGCTCGG (SEQ ID NO: 31)), and "28-1 # 3M” (TGGAAACTACTTCCCTGCTCCCA (SEQ ID NO: 32)).
- 23-1 # 2 ⁇ CAGMTCTGCTCATGCAGTC (SEQ ID NO: 29)
- 23-1 # 2Rlj CACTCCTTACTTTCCACCCC (SEQ ID NO: 30)
- 28-l # 3Fl AACAGCATTTCCCTA MGCTCGG (SEQ
- 23-belly 1 and 23-1 # 2R1, 28-1 # 3 ⁇ and 28-job 1 can amplify a part of the sequence of 23-1 # 2 and 28-1 # 3, respectively.
- Single-stranded cDNA prepared from IMC-HM and IMC-LM-derived cells was subjected to PCR for type III using EX Taq DNA polymerase under the same conditions as in Example 1 (5) for 30 cycles.
- the same level of amplification of the appropriate size cDNA was observed in clone cells derived from IMC-HM, and no signal was detected in clone cells derived from IMC-LM. Did not.
- IMC-HM-derived cloned cells were One mouse was implanted subcutaneously. As a result, all of the IMC-HM-derived cloned cells killed the host 2-3 weeks after transplantation, and macroscopic findings showed remarkable cancer metastasis in the liver and spleen. I was not able to admit. Through observation of other morphology, in vitro proliferation ability, and the like, no significant difference was observed between IMC-LM-derived cells and IMC-HM-derived cells. IMC-HM-derived clone cell lines and IMC-LM-derived clone cell lines were selected one by one and named "IMC-HA1" and "IMC-LE5". The IMC-HA1 cells were deposited at the following depository.
- PolyA RNA was prepared from IMC-HA1 and IMC-LE5 cells using a Messenger RNA Isolation Kit (STRATAGENE) as follows. Approximately 10 'cells were collected from 100 ml of the culture suspension and lysed with 5 ml of a denaturing solution (STRATAGENE) supplemented with 1 /?-Mercaptoethanol. 10 ml of an elution buffer (STRATAGENE) was added, and the mixture was centrifuged at 12,000 ⁇ g for 10 minutes.
- STRATAGENE Messenger RNA Isolation Kit
- the supernatant was mixed with 5 ml of oligo dT cellulose (0.04 g / ml) and gently stirred at room temperature for 15 minutes. After centrifugation at 700 ⁇ g for 3 minutes, the supernatant was removed and resuspended in 5 ml of a high-salt buffer (STRATAGENE). After repeating this washing operation twice, the cells were suspended in 5 ml of low-salt buffer (STRATAGENE). After filling a 2.5 ml push column (STR ATAGENE) with the cellulose suspension, the remaining polyA RNA was eluted with 400 ⁇ 1 of an elution buffer at 68 ° C.
- the labeled probe was separated from unincorporated [[-] P] dCTP by a Sephadex G-50 spin column. was diluted with purified water, and the radioactivity of the probe was measured using a liquid scintillation counter.
- a cDNA library derived from IMC-HAI cells was prepared by the following methods (a) to (e).
- RNA was extracted from IMC-HA1 cells by the method described in Example 1 (1). However, in this case, the extraction probability of proteins, lipids, DNA fragments and the like was reduced by performing the IS0GEN extraction twice.
- PolyA RNA was extracted from this total RNA as follows. Whatmann 3M was placed on the bottom of a 2.5 ml syringe and filled with 5 ml of oligo dT cellulose (0.04 g / ml) (STRATAGENE) to prepare a spin column. After the sample was added to the column and left at room temperature for 30 minutes, the column was washed three times with a high salt buffer and a low salt buffer (Clontech).
- Xhol linker primer After blunting the reverse end of the Xhol linker primer with 5 U of Pfu DNA polymerase (STRATAGENE), ligate the EcoRI adapter with 4 U of T4 DNA ligase at 8 ° C for 1 hour, then ligate. The ends were phosphorylated with 10 U of T4 polynucleotide kinase.
- One end of Xhol linker was cut by 120U Xhol treatment. At the EcoRI and Xhol sites, the cDNA was inserted into the ZAP Express Vector by T-MA reaction at 12 ° C using T4 MA ligase.
- Phage packaging was performed using Gigapack Gold II (STRATAGENE), and the process completely followed the recommended protocol.
- Phosphate-treated host bacteria with 50,000 plaques / plate are layered on top of 20 prepared NZY agar plates with 150 recites together with top agar and left at 37 ° C overnight. A plaque was formed.
- the SM buffer from which the phage was sufficiently released was recovered and rinsed with 2 ml of SM buffer to recover. This was dispensed as a preservation solution for the cDNA library and stored frozen at -70 ° C. Thereafter, this storage solution was used for screening of the cDNA library.
- NZY agar plates were prepared in a sterile square No. 2 petri dish. Infect the phage of the cDNA library with X-Blue MRF 'adjusted to 0D F0.5 to obtain 50,000 plaques / plate, overlay with LB top agar on a NZY agar plate, and leave at 37 ° C overnight did. After confirming the proper formation of plaque the next day, the mixture was cooled at 4 ⁇ for 2 hours, and the DNA in the plaque was transferred to Hybond N + membrane. After passing through the steps of denaturation, drying, and UV-crosslinking, the membrane was hybridized by the following procedure.
- the membrane was immersed in a 2 ⁇ PIPES buffer, 50% formamide, 0.5% SDS, denatured salmon sperm DNA (100 g / ml) solution, and prehybridized at 42 ° C. for 1 hour.
- 23-1 # 2 and 28-1 # 3 radiolabeled with [hi- "P] dCTP were prepared according to the method described above, and were added as probes to the above prehybridization solution.
- the membrane was left overnight at 42 ° C. After hybridization, the membrane was washed with 0.1 ⁇ SSC, 0.1% SDS solution at 65 ° C. for 20 minutes 3 to 4 times. Images were printed at 1: 1 magnification with BAS2000, and the corresponding points on the plate were punched out with a sterilized P1000 chip with a truncated tip to elute the phage into the SM buffer.
- the phage solution determined to be positive in the primary screening was further screened in the same step. However, a 10-fold dilution series of the phage solution was prepared and layered using a 100-thigh plastic dish instead of the sterile angle No. 2 dish. The phage at the point determined to be positive in the secondary screening was eluted into the SM buffer, and the insert was amplified using T7 and T3 primers. At this stage several inserts were recognized If so, screening was continued in the same steps.
- phage clone # 9.3133 which specifically binds to 23-1 # 2, is converted to phage clones # 7.1641, # 8. 32, got # 11.2441.
- ZAP Express can be directly excised as a pBK-CMV phagemid vector containing an insert directly in vivo in the presence of a helper phage (ExAssist helper phage).
- the cloned phage was excised as a pBK-CMV phage mid-vector, cloned into XL0LR to form a colony on a kanamycin-containing LB plate, and cloned.
- phage medicinal Yuichi clones # 9.331334, # 7.16411, # 8.323, and # 11.24413 were obtained.
- the nucleotide sequence was partially determined by the dye primer method using the pBK-CMV phagemid vector containing these cDNAs. Specifically, the sequence was determined in the same manner as in Example 1 (6). However, the cycle sequencing reaction was performed using T3 primer (AATTAACCCTCACTAAAGGG / SEQ ID NO: 33) and T7 primer (GTMTACGACTCACTAT AGGGC / SEQ ID NO: 34). Furthermore, the primer used in RT-PCR and the primer of an appropriate sequence were designed in the insert of pBK-CMV phage middock, whose sequence was partially determined by the dye primer method. The sequence of the undefined region was further determined by the overnight method.
- the PRI SM Ready Reaction Terminator Cycle Sequencing Kit was used. Mix 250-500 ng of double-stranded DNA with 3.2 pmol of the primer and 8 ⁇ 1 of the above-mentioned premix to make the total volume 20 ⁇ 1, and make one cycle at 96 ° C for 2 minutes, then at 96 ° C for 10 seconds, A cycle sequence was performed at 50 ° C for 5 seconds and at 60 ° C for 4 minutes under 25 cycles. The conditions for electrophoresis and analysis were the same as those for the dye primer method.
- clone # 9.331334 having a total length of 983 was obtained for 23-1 # 2 (SEQ ID NO: 3).
- This sequence was a novel gene containing a translation region encoding 167 amino acids.
- the amino acid sequence is approximately the same as that of bovine cystin B, an inhibitory protein for cathepsins.
- the predicted amino acid was considered to have a hydrophobic N-terminus in # 7.16411, but was calculated to be hydrophilic in # 11.24413. 28 As with # 9.31334, the search results for the three types of sequences obtained using 8-1 # 3 are novel genes, and the protein considered to be encoded by # 7.16411 is human SLPI (secretary leukoprotease inhibitor). Showed partial homology close to 60%.
- nucleotide sequences of these clones are as follows: SEQ ID NO: 5 (nucleotide sequence of clone # 7.16411), SEQ ID NO: 7 (nucleotide sequence of clone # 8.323), and SEQ ID NO: 8 (nucleotide sequence of clone # 11.24413). Indicated.
- mouse CMAP The predicted amino acid sequence found in the translation region of # 9.31334 was designated as mouse CMAP.
- # 9.31334 is referred to as mouse CMAP.
- mice CMAP The expression of mouse CMAP in 12 mouse tumor cell lines was examined by RT-PCR (Riverse Transcription PCR) (Fig. 1). Total RNA was extracted from each cell line in the same manner as in Example 1 (1), and complementary single-stranded cDNA was prepared in the same manner as in Example 1 (2). Mouse CMAP was detected by PCR in the same manner as in Example 1 (5). The reaction was performed at 94 ° C for 2 minutes in 1 stroke, 94 ° C for 1 minute, 68 ° C for 2 minutes in 30 cycles, and 68 ° C for 5 minutes in 1 stroke. The primer was “23-l # 2Fl” (sequence No .: 29) and "23-l # 2Rl" (SEQ ID NO: 30) were used.
- the dilution ratio of single-stranded cDNA, which becomes type ⁇ , should be 10-fold diluted when amplifying CMAP and 40-fold diluted when detecting control G3PDH. It was confirmed that the semi-quantitative condition was a linear relationship.
- mouse CMAP was clearly expressed in M-5076 cells, L5178Y cells, P388 cells, and L1210 cells except for IMC-HA1 cells.
- Anatomical macroscopic findings and pathological analysis confirmed that all of these cell lines formed metastases mainly in the liver when 1 ⁇ 10 5 cells were transplanted from the tail vein of mice.
- B-16-BL6 cells and Colon26 cells which showed little expression of mouse CMAP, induced strong lung metastases experimentally, but did not show liver metastases.
- all other cell lines in which mouse CMAP expression was below the detection limit were almost completely eliminated and regressed by tail vein transplantation into mice.
- mice 15 tissues were surgically excised from 2-3 normal 5-week-old female CDF1 mice, and the tissues were crushed using polytron. Then, the expression of mouse CMAP was determined by RT-PCR as described above. Was confirmed (Fig. 2). As a result, the thymus, spleen, and intestinal membranes were clearly weaker than IMC-HA1 cells. Expression of mouse CMAP was observed in the lymph node. These results suggested that mouse CMAP also plays a physiological role in normal tissues, which may be closely related to the immune system.
- Human spleen was selected as a source of type I DNA because mouse CMAP was expressed in spleen in normal mouse tissue.
- Single-stranded cDNA was prepared in the same manner as in Example 1 (2) using 2 g of total RNA (OriGene) extracted from human spleen.
- Eight primers (SEQ ID NOs: H-CMAP-1 to 8) were designed based on the sequences of N47763 and N56875.
- Type I single-stranded cDNA was subjected to PCR in the same manner as in Example 1 (5) using the primers of H-CMAP-1 and H-CMAP-2.
- the reaction conditions are as follows: 1 cycle at 94 ° C for 2 minutes, 30 cycles at 94 ° C for 30 seconds, 60 ° C for 30 seconds, 72 ° C for 90 seconds, 1 cycle at 72 ° C for 5 minutes, and more.
- the process was performed continuously.
- the thermal cycler used PEMIN ELMER 9600.
- the nucleotide sequence of the amplified cDNA product of about 0.8 kb derived from human CMAP was directly obtained using primer H-CMAP-1-8 (SEQ ID NOs: 39 to 46) in the same manner as in Example 1 (6). Determined (SEQ ID NO: 37).
- Human CMAP showed 65.9% homology with mouse CMAP.
- Human CMAP was located at positions 83 to 583 in the nucleotide sequence, and its amino acid sequence (SEQ ID NO: 38) showed 71.6% homology with mouse CMAP. Therefore, it was strongly suggested that these two proteins may have almost the same functions.
- SEQ ID NO: 38 amino acid sequence
- the 84th N was theoretically highly likely to have a sugar added, and was considered to be a property not found in other nearby sequences.
- CMAP retains a sequence similar to the previously reported cis amino acids, a number of characteristic amino acid residues were observed, suggesting that it may have properties different from those of known products. Was done.
- metastasis requires a change in the quality or amount of expression of multiple overlapping genes. Therefore, even if one metastasis-related gene was induced into cells with low metastasis, it was considered difficult to confirm an increase in metastatic potential in mice. Therefore, a vector incorporating a sequence that complementarily offsets mouse CMAPmMA was introduced into IMC-HA1 cells, and a stably transformed cloned cell was constructed to examine the change in the metastatic potential in the actual mouse.
- the pBK-CMV expression vector was treated with Nhe I and Kpn I restriction enzymes to prepare a linear vector from which the lac Z promoter and the multicloning site had been removed. Inserts were prepared by RT-PCR using total RNA from IMC-HA1 cells as material. As primers, CMAP-F1 (SEQ ID NO: 47) and CMAP-R1 (SEQ ID NO: 48) were used. These primers have Nhel and Kpnl restriction enzyme recognition sites added to their ends, and the amplified product 'Corresponds to the untranslated region and the entire translated region.
- the amplified product of about 0.5 kb was treated with Nhel and Kpnl restriction enzymes, purified by QIAquick PCR Purification Kit (QIAGEN), and ligated to the previously prepared linear vector using DNA Ligation Kit (Takara Shuzo).
- QIAGEN QIAquick PCR Purification Kit
- pBK-AS-CMAP a vector that expresses antisense mRNA of mouse CMAP in cells, was constructed.
- IMC-HA1 cells in the logarithmic growth phase were collected from 100 ml of the culture solution, and resuspended in EP buffer to prepare a cell suspension with a density of 4 ⁇ 10 ′ cells / ml.
- Transformed cells were selected Cells were cloned by the limiting dilution method After obtaining about 50 cloned cells, cells with reduced mouse CMAP were screened by RT-PCR, resulting in 3 Cloned cells, 57C4, 53A9, and 53E9 The same operation was performed for the pBK-CM V vector without the insert to obtain a clone strain 18B5 that served as a vector control The expression of mouse CMAP mRNA in these cell lines was confirmed by the Northern method. As with the IMC-HA1 cells, the expression was approximately 49%, 32%, and 16% for the 57C4, 53A9, and 53E9 strains, respectively. No particular change was observed in the form and the like.
- mice of the IMC-HA1 cell-derived clonal cell line with different expression of mouse CMAP mRNA was tested in three independent experimental systems.
- each cell was transplanted subcutaneously 5x10 ⁇ 0, and the liver was removed on day 15 for observation and weight measurement, and the survival time was also investigated.
- Study II as in Study I, but on day 3 after transplantation, the primary tumor mass was resected together with nearby lymph nodes. This experiment can mimic the micrometastases of IMC-HA1 cells in the liver.
- Test III three lxlO cells were directly transferred from the tail vein, and the liver was removed on the 13th day.
- mice CMAP mRNA is closely related to the formation of metastatic foci in the liver and the prolongation of life (Table 1).
- the annotation “1)” in the table indicates “the number of mice surviving for 60 days / the number of mice tested”.
- IMC-HA1 100 2.070 Sat 0.409 173 17.4 Sat 1.5 100 0/5
- IMC-HA1 100 1.506 ⁇ 0.149 145 18.0 Sat 0.7 100 0/5
- IMC-HA1 100 1.767 Sat 0.460 191 14.0 ⁇ 0.7 100 0/5
- mice transplanted with the 53A9 strain, and half of the 53E9 strain survived more than 60 days without inducing liver metastasis.
- a novel protein involved in cancer metastasis and a DNA encoding the protein have been provided. Also provided are a vector into which the DNA has been inserted, a transformant carrying the vector, and a method for producing a recombinant protein comprising a step of culturing the transformant. Also provided is a DNA for use in detecting, isolating, amplifying or suppressing expression of the gene. Furthermore, a method for screening a cancer metastasis inhibitor using the protein was provided. This has enabled the development of new cancer metastasis inhibitors.
- Sequence type nucleic acid
- Organism Name Mus Musculus
- Sequence type nucleic acid
- Organism Name Mus Musculus
- Sequence type nucleic acid
- Organism name Mus Musculus
- IMC HA1 cell-derived cDNA library
- AAG GAG TCC CAT GTC AGC AAA GCC CTG GTA CAG GTG GTG AAA GGC CTG 340 Lys Glu Ser His Val Ser Lys Ala Leu Val Gin Val Val Lys Gly Leu
- Organism name Mus Mus cuius
- Organism name Mus Musculus
- IMC HA1 cell-derived cDNA library
- Organism name Mus Musculus
- Cys Glu Gly lie Cys Gly Lys Val Cys Leu Pro Pro Met
- Sequence type nucleic acid
- Organism name us Musculus
- One library cDNA library derived from IMC-HA1 cells
- GGCTCAGCAT TCACCGAGCT TTAGGGAAAT GCTGTTGGAG AGCAAATAAA TAAACGCATT 1080
- Sequence type nucleic acid
- Organism name Mus Musculus
- One library cDNA library derived from IMC-HA1 cells
- CTGGACTCGT GCTCGGTGTG CTCTGGAAAC TACTTCCCTG CTCCCAGGCG TCCCTGCTCC 507 GGGTTCCATG GCTCCCGGCT CCCTGTATCC CAGGCTTGGA TCCTGTGGAC CAGGGTTACT 567 GTTTTACCAC TAACATCTCC TTTTGGCTCA GCATTCACCG AGCTTTAGGGAATGCGATGAAAAGGTCAGAAAA
- Organism Name Mus Musculus
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid Number of chains: single strand
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Organism name us Muscukus
- AAA AAC CAG CAC CTG CGT CTG GAT GAC TGT GAC TTC CAA ACC AAC CAC 496 Lys Asn Gin His Leu Arg Leu Asp Asp Cys Asp Phe Gin Thr Asn His
- Organism name Mus Muscukus
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid Number of chains: single strand
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
- Sequence type nucleic acid
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Chemical & Material Sciences (AREA)
- Hematology (AREA)
- Urology & Nephrology (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Cell Biology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Peptides Or Proteins (AREA)
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU65235/98A AU6523598A (en) | 1997-04-08 | 1998-04-07 | Cancerous metastasis-associated gene |
| EP98911227A EP0974652A4 (en) | 1997-04-08 | 1998-04-07 | GENES ASSOCIATED WITH CANCER METASAS |
| CA002286038A CA2286038A1 (en) | 1997-04-08 | 1998-04-07 | Cancerous metastasis-associated gene |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10533397 | 1997-04-08 | ||
| JP9/105333 | 1997-04-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998045431A1 true WO1998045431A1 (fr) | 1998-10-15 |
Family
ID=14404806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1998/001592 Ceased WO1998045431A1 (fr) | 1997-04-08 | 1998-04-07 | Gene associe a la metastase cancereuse |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0974652A4 (ja) |
| AU (1) | AU6523598A (ja) |
| CA (1) | CA2286038A1 (ja) |
| WO (1) | WO1998045431A1 (ja) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6066617A (en) * | 1996-04-03 | 2000-05-23 | Human Genome Sciences, Inc. | Human cystatin F |
| JP2003510274A (ja) | 1999-09-28 | 2003-03-18 | バクスター ヘルスケア ソシエテ アノニム | 治療上重要な特性を有するインドリル−3−グリオキシル酸誘導体 |
| GB2399988A (en) * | 2003-03-28 | 2004-09-29 | Motorola Inc | Call gapping to reduce network congestion |
| WO2007018309A1 (ja) * | 2005-08-11 | 2007-02-15 | Banyu Pharmaceutical Co., Ltd. | Rbパスウェイ上の分子を指標とする化合物の評価方法及び分子診断方法 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002044419A2 (en) | 2000-11-28 | 2002-06-06 | Wyeth | Expression analysis of kiaa nucleic acids and polypeptides useful in the diagnosis and treatment of prostate cancer |
| US6821731B2 (en) | 2000-11-28 | 2004-11-23 | Wyeth | Expression analysis of FKBP nucleic acids and polypeptides useful in the diagnosis of prostate cancer |
| EP1620121A2 (en) * | 2003-05-07 | 2006-02-01 | VIB vzw | The use of a polypeptide domain of slpi to modulate the tumorigenic and metastatic potential of cancer cells |
-
1998
- 1998-04-07 EP EP98911227A patent/EP0974652A4/en not_active Withdrawn
- 1998-04-07 CA CA002286038A patent/CA2286038A1/en not_active Abandoned
- 1998-04-07 WO PCT/JP1998/001592 patent/WO1998045431A1/ja not_active Ceased
- 1998-04-07 AU AU65235/98A patent/AU6523598A/en not_active Abandoned
Non-Patent Citations (5)
| Title |
|---|
| ARAKAWA H., ET AL.: "ANTIMETASTATIC EFFECT OF A NOVEL INDOLOCARBAZOLE (NB-506) ON IMC-HMMURINE TUMOR CELLS METASTASIZED TO THE LIVER.", JAPANESE JOURNAL OF CANCER RESEARCH, AMSTERDAM, NL, vol. 87., 1 May 1996 (1996-05-01), NL, pages 518 - 523., XP002911482 * |
| JIN F.-Y., ET AL.: "SECRETORY LEUKOCYTE PROTEASE INHIBITOR: A MACROPHAGE PRODUCT INDUCED BY AND ANTAGONISTIC TO BACTERIAL LIPOPOLYSACCHARIDE", CELL, CELL PRESS, US, vol. 88., 7 February 1997 (1997-02-07), US, pages 417 - 426., XP002911480, ISSN: 0092-8674, DOI: 10.1016/S0092-8674(00)81880-2 * |
| MORLTA M., ET AL.: "ISOLATION OF TWO METASTASIS-RELATED CANDIDATE GENES FROM A LIVER METASTATIC MURINE CARCINOMA, IMC-HM.", PROCEEDINGS OF THE 88TH. ANNUAL MEETING OF THE AMERICAN ASSOCIATION FOR CANCER RESEARCH. SAN DIEGO, APR. 12 - 16, 1997., PHILADELPHIA, AACR., US, vol. VOL.38, 1 January 1997 (1997-01-01), US, pages 546., XP002911481 * |
| See also references of EP0974652A4 * |
| STEIN C. A., CHENG Y.-C.: "ANTISENSE OLIGONUCLEOTIDES AS THERAPEUTIC AGENTS- IS THE BULLET REALLY MAGICAL?", SCIENCE, AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE, vol. 261., 20 August 1993 (1993-08-20), pages 1004 - 1012., XP002911483, ISSN: 0036-8075, DOI: 10.1126/science.8351515 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6066617A (en) * | 1996-04-03 | 2000-05-23 | Human Genome Sciences, Inc. | Human cystatin F |
| US6576745B1 (en) | 1996-04-03 | 2003-06-10 | Human Genome Sciences, Inc. | Human cystatin F antibodies |
| JP2003510274A (ja) | 1999-09-28 | 2003-03-18 | バクスター ヘルスケア ソシエテ アノニム | 治療上重要な特性を有するインドリル−3−グリオキシル酸誘導体 |
| GB2399988A (en) * | 2003-03-28 | 2004-09-29 | Motorola Inc | Call gapping to reduce network congestion |
| GB2399988B (en) * | 2003-03-28 | 2005-05-25 | Motorola Inc | Communication unit, communication system and method for reducing network congestion therein |
| WO2007018309A1 (ja) * | 2005-08-11 | 2007-02-15 | Banyu Pharmaceutical Co., Ltd. | Rbパスウェイ上の分子を指標とする化合物の評価方法及び分子診断方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0974652A1 (en) | 2000-01-26 |
| AU6523598A (en) | 1998-10-30 |
| CA2286038A1 (en) | 1998-10-15 |
| EP0974652A4 (en) | 2000-08-30 |
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