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    • 4. 发明申请
    • TREATING OR PREVENTING CANCERS OVER-EXPRESSING REG4 OR KIAA0101
    • 治疗或预防过度表达REG4或KIAA0101的癌症
    • WO2008020596A3
    • 2008-06-12
    • PCT/JP2007065873
    • 2007-08-08
    • ONCOTHERAPY SCIENCE INCNAKAMURA YUSUKENAKAGAWA HIDEWAKINAKATSURU SHUICHI
    • NAKAMURA YUSUKENAKAGAWA HIDEWAKINAKATSURU SHUICHI
    • A61K31/7088A61K38/00A61K39/395A61P35/00C07K14/475C07K16/32C12N15/113C12Q1/68G01N33/53
    • C12N15/1135A61K38/00C07K14/47C07K16/18C07K2317/56C07K2317/565C12N2310/111C12N2310/14C12Q1/6886C12Q2600/106C12Q2600/158
    • The invention features a method for inhibiting growth of a cancer cell by contacting the cell with a composition of an siRNA that inhibits expression of REG4 or KIAA0101. Methods of treating cancer are also within the invention. The invention also features products, including nucleic acid sequences and vectors as well as to compositions comprising them, useful in the provided methods. The invention also provides a method for inhibiting of tumor cell, for example pancreatic cancer cell, prostatic cancer cell, breast cancer cell, and bladder cancer cell, particularly pancreatic ductal adenocarcinoma (PDAC) by inhibiting REG4 gene. The present invention also relates to methods of treating or preventing PDAC in a subject comprising the step of administering to said subject a pharmaceutically effective amount of an antibody or fragment thereof that binds to a protein encoded by REG4. The present invention also relates to methods of diagnosing chemo-radiation therapeutic resistance of a cancer. The present invention also provides therapeutic agents or methods for treating cancer using the polypeptides. The polypeptides of the present invention are composed of an amino acid sequence which comprises polypeptide which comprises QKGIGEFF/SEQ ID NO: 21. The polypeptides of the present invention can be introduced into cancer cells by modifying the polypeptides with transfection agents such as poly-arginine.
    • 本发明的特征在于通过使细胞与抑制REG4或KIAA0101表达的siRNA的组合物接触来抑制癌细胞生长的方法。 治疗癌症的方法也在本发明之内。 本发明的特征还在于提供的方法中有用的产品,包括核酸序列和载体以及包含它们的组合物。 本发明还提供了通过抑制REG4基因抑制肿瘤细胞,例如胰腺癌细胞,前列腺癌细胞,乳腺癌细胞和膀胱癌细胞,特别是胰腺导管腺癌(PDAC)的方法。 本发明还涉及在受试者中治疗或预防PDAC的方法,其包括向所述受试者施用药学有效量的与由REG4编码的蛋白质结合的抗体或其片段的步骤。 本发明还涉及诊断癌症的化学放射治疗抗性的方法。 本发明还提供了使用所述多肽治疗癌症的治疗剂或方法。 本发明的多肽由包含包含QKGIGEFF / SEQ ID NO:21的多肽的氨基酸序列组成。可以通过用转染剂如聚精氨酸修饰多肽将本发明的多肽引入癌细胞 。