Angiostatin, a proteolytic fragment of plasminogen consisting of the first 3 or 4 kringle domains, reduces tumor growth by specifically inhibiting tumor angiogenesis. Angiostatin is generated in vitro in a 2-step process. First, plasminogen is converted to plasmin by plasminogen activators.
View Article and Find Full Text PDFMultigenicity is one of the features of cancer/testis-associated genes. In the present study we analyzed the number and expression of genes of the SPANX(CTp11) family of cancer/testis-associated genes. Genomic database analysis, next to the four previously described SPANX genes, revealed the presence of a novel gene: SPANXE.
View Article and Find Full Text PDFCigarette smoking has been inconsistently associated with colon cancer risk. To evaluate the hypothesis that smoking is primarily linked to a specific colon tumor subgroup(s), we assessed associations between smoking and the occurrence of mutations in the APC, K-ras and p53 genes, p53 overexpression, and microsatellite instability (MSI) in a Dutch population-based case-control study on sporadic colon carcinomas. The study population consisted of 176 cases and 249 controls.
View Article and Find Full Text PDFThe existence of XAGE genes was first reported after database homology searches for PAGE-like sequences identified 3 XAGE EST clusters. One of these clusters, XAGE-1, has in later studies been identified as a cancer/testis-associated gene. Here, we report the expression profiles of all 3 reported XAGE genes, as well as several splice variants of XAGE-1, in normal human tissues, Ewing's sarcoma and melanocytic tumors.
View Article and Find Full Text PDFSuppression subtractive hybridization, comparing mRNA expression profiles of common nevocellular nevi and melanoma metastases, was used to identify potential markers of melanoma progression. From the metastases we isolated XAGE-1b, a 470 bp transcript of the XAGE-1 gene. In general, expression of XAGE-1b was much more prominent than expression of the longer XAGE-1 transcript, isolated from Ewing's sarcoma.
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