CBX7 is differentially expressed in high-grade serous ovarian cancers.
Keyword(s):
Ovarian cancer is the most lethal gynecologic cancer (1-3). We sought to identify genes associated with high-grade serous ovarian cancer (HGSC) by comparing global gene expression profiles of normal ovary with that of primary tumors from women diagnosed with HGSC using published microarray data (4,5). We identified the chromobox homolog 7 (CBX7) (6) as among the genes whose expression was most different in HGSC ovarian tumors. CBX7 expression was significantly lower in ovarian tumors relative to normal ovary. These data reveal perturbed expression of a tumor suppressor (7) with epigenetic activity at lysine 27 of histone H3 (H3K27) (8) in high-grade serous ovarian cancers.
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