The Rottapel Lab


Interrogation of Functional Cell-Surface Markers Identifies CD151 Dependency in High-Grade Serous Ovarian Cancer.

Medrano M, Communal L, Brown KR, Iwanicki M, Normand J, Paterson J, Sircoulomb F, Krzyzanowski P, Novak M, Doodnauth SA, Saiz FS, Cullis J, Al-Awar R, Neel BG, McPherson J, Drapkin R, Ailles L, Mes-Massons AM, Rottapel R.

Cell Rep. 2017 Mar 7;18(10):2343-2358. doi: 10.1016/j.celrep.2017.02.028.

The degree of genetic aberrations characteristic of high-grade serous ovarian cancer (HGSC) makes identification of the molecular features that drive tumor progression difficult. Here, we perform genome-wide RNAi screens and comprehensive expression analysis of cell-surface markers in a panel of HGSC cell lines to identify genes that are critical to their survival. We report that the tetraspanin CD151 contributes to survival of a subset of HGSC cell lines associated with a ZEB transcriptional program and supports the growth of HGSC tumors. Moreover, we show that high CD151 expression is prognostic of poor clinical outcome. This study reveals cell-surface vulnerabilities associated with HGSC, provides a framework for identifying therapeutic targets, and reports a role for CD151 in HGSC.