Scientific background: |
WISP1 (WNT1-Inducible Signaling Pathway Protein 1), also known as CCN4, is a matricellular protein that in humans is encoded by the WISP1 gene. WISP1 is induced by WNT1 and belongs to the CCN family, which includes connective tissue growth factor, cysteine-rich-61, and nephroblastoma overexpressed (Tanaka et al., 2001). By use of radiation hybrid mapping panels, Pennica et al. (1998) mapped the WISP1 to chromosome 8q24.1-q24.3, roughly 4 Mb distal to MYC. Pennica et al. (1998) found that 2 distinct systems demonstrated that WISP induction was associated with expression of WNT1. WISP1 genomic DNA was amplified in colon cancer cell lines and in human colon tumors, and its RNA was overexpressed in 84% of tumors examined compared with patient-matched normal mucosa. |
References: |
1. Pennica, D., Swanson, T. A., Welsh, J. W., Roy, M. A., Lawrence, D. A., Lee, J., Brush, J., Taneyhill, L. A., Deuel, B., Lew, M., Watanabe, C., Cohen, R. L., Melhem, M. F., Finley, G. G., Quirke, P., Goddard, A. D., Hillan, K. J., Gurney, A. L., Botstein, D., Levine, A. J. WISP genes are members of the connective tissue growth factor family that are up-regulated in Wnt-1-transformed cells and aberrantly expressed in human colon tumors. Proc. Nat. Acad. Sci. 95: 14717-14722, 1998.
2. Tanaka, S., Sugimachi, K., Saeki, H., Kinoshita, J., Ohga, T., Shimada, M., Maehara, Y., Sugimachi, K. A novel variant of WISP1 lacking a von Willebrand type C module overexpressed in scirrhous gastric carcinoma. Oncogene 20: 5525-5532, 2001. |