| 摘要 |
Methods and compositions for inhibiting growth of a tumor, inhibiting angiogenesis and inhibiting extracellular matrix destruction in a mammal are disclosed. The method includes administering a therapeutically effective amount of a polypeptide that contains the sequence ProArgCysGlyXaaProAsp, wherein Xaa represents Val or Asn (SEQ ID NO:6). Preferably, the polypeptide is 60 to 100 amino acids in length. In some embodiments, the polypeptide is a human MMP-2 propeptide (SEQ ID NO:1) or an MMP-2 propeptide-like polypeptide, i.e., a polypeptide having at least 80% sequence identity with SEQ ID NO:1.
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