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Abstract
BACKGROUND A priori knowledge of recurrence risk in patients with nonmetastatic (International Federation of Gynecology and Obstetrics [FIGO] stage I) uterine serous carcinoma (USC) would enable a risk-stratified approach to the use of adjuvant chemotherapy. This would greatly reduce treatment-related morbidity and be predicted to improve survival.METHODS GATA2 expression was scored by IHC across a retrospective multiinstitutional cohort of 195 primary USCs. Associations between GATA2 levels and clinicopathologic metrics were evaluated using Student’s t test, Fisher’s exact test, Kaplan-Meier method, and Cox proportional hazard ratio. Invasion in patient-derived USC cells was assessed by Student’s t test. RNA-Seq, anti-GATA2 ChIP-Seq, and confirmatory Western blotting enabled identification of GATA2 targets.RESULTS Patients with FIGO stage I GATA2hi USCs had 100% recurrence-free and 100% cancer-related survival, which was significantly better than patients with GATA2lo USCs. In patients for whom adjuvant chemotherapy was omitted, patients with GATA2hi USC had 100% recurrence-free 5-year survival compared with 60% recurrence-free survival in patients with GATA2lo USC. Depletion of GATA2 in patient-derived USC cells increased invasion in vitro.CONCLUSION Routine GATA2 IHC identifies 33% of patients with FIGO stage I USC who have a greatly reduced risk of posthysterectomy USC recurrence. Our results suggest that a GATA2-guided personalized medicine approach could be rapidly implemented in most hospital settings, would reduce treatment-related morbidity, and would likely improve outcomes in patients with USC.FUNDING NIH grants R01 DK068634, P30 CA014520, S10 OD023526, K08 DK127244, T32 HL007899, the UW-Madison Department of Pathology and Laboratory Medicine, the UW-Madison Centennial Scholars Program, the Diane Lindstrom Foundation, the American Cancer Society, the V Foundation, The Hartwell Foundation, and the UMN Department of Obstetrics, Gynecology, and Women’s Health.
Authors
Usha S. Polaki, Trey E. Gilpin, Apoorva T. Patil, Emily Chiu, Ruth Baker, Peng Liu, Tatiana S. Pavletich, Morteza Seifi, Paula M. Mañán-Mejías, Jordan Morrissey, Jenna Port, Rene Welch Schwartz, Irene M. Ong, Dina El-Rayes, Mahmoud A. Khalifa, Pei Hui, Vanessa L. Horner, María Virumbrales-Muñoz, Britt K. Erickson, Lisa Barroilhet, Stephanie M. McGregor, Emery H. Bresnick, Daniel R. Matson
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