OBJECTIVE: This study was conducted to determine whether overexpression of the p53 tumor suppressor gene is associated with poor outcome in early-stage endometrial cancers and whether a racial difference in the frequency of p53 overexpression contributes to the observed racial disparity in survival rates. STUDY DESIGN: Immunostaining for the p53 gene was performed in 164 women with stage I endometrial adenocarcinomas. RESULTS: Overexpression of mutant p53 protein was seen in 28 out of 164 (17%) cases and was associated with a poor histologic grade (p = 0.003) and a nonendometrioid histologic appearance (p = 0.06). Overexpression also was three times more frequent in blacks (15 out of 44, 34%) than in whites (13 out of 117, 11%) (p = 0.003). Recurrent disease developed in 15 out of 164 (9%) cases and was more than twice as frequent in cases when the p53 gene was overexpressed (5 out of 28, 18%) than in cases with normal expression (10 out of 136, 7%). Recurrent disease was seen in 6 out of 44 (14%) blacks compared to 9 out of 117 (8%) whites. CONCLUSIONS: These data support the hypothesis that differences in the frequency of alteration of the p53 tumor suppressor gene contribute to the racial disparity in endometrial cancer survival.
OBJECTIVE: This study was conducted to determine whether overexpression of the p53tumor suppressor gene is associated with poor outcome in early-stage endometrial cancers and whether a racial difference in the frequency of p53 overexpression contributes to the observed racial disparity in survival rates. STUDY DESIGN: Immunostaining for the p53 gene was performed in 164 women with stage I endometrial adenocarcinomas. RESULTS: Overexpression of mutant p53 protein was seen in 28 out of 164 (17%) cases and was associated with a poor histologic grade (p = 0.003) and a nonendometrioid histologic appearance (p = 0.06). Overexpression also was three times more frequent in blacks (15 out of 44, 34%) than in whites (13 out of 117, 11%) (p = 0.003). Recurrent disease developed in 15 out of 164 (9%) cases and was more than twice as frequent in cases when the p53 gene was overexpressed (5 out of 28, 18%) than in cases with normal expression (10 out of 136, 7%). Recurrent disease was seen in 6 out of 44 (14%) blacks compared to 9 out of 117 (8%) whites. CONCLUSIONS: These data support the hypothesis that differences in the frequency of alteration of the p53tumor suppressor gene contribute to the racial disparity in endometrial cancer survival.
Authors: Barenya Mukerji; Caitlin Baptiste; Ling Chen; Ana I Tergas; June Y Hou; Cande V Ananth; Alfred I Neugut; Dawn L Hershman; Jason D Wright Journal: Gynecol Oncol Date: 2018-01-05 Impact factor: 5.482
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Authors: John H Farley; Chunqiao Tian; G Scott Rose; Carol L Brown; Michael Birrer; John I Risinger; J Tate Thigpen; Gini F Fleming; Holly H Gallion; G Larry Maxwell Journal: Cancer Date: 2010-01-15 Impact factor: 6.860
Authors: Hannah P Yang; Nicolas Wentzensen; Britton Trabert; Gretchen L Gierach; Ashley S Felix; Marc J Gunter; Albert Hollenbeck; Yikyung Park; Mark E Sherman; Louise A Brinton Journal: Am J Epidemiol Date: 2012-11-21 Impact factor: 4.897