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Prognostic Value of the Expression of DNA Repair-Related Biomarkers Mediated by Alcohol in Gastric Cancer Patients.

Prognostic Value of the Expression of DNA Repair-Related Biomarkers Mediated by Alcohol in Gastric Cancer Patients.

Am J Pathol. 2018 Jan 05;:

Authors: Zhang Y, Wu H, Yang F, Ning J, Li M, Zhao C, Zhong S, Gu K, Wang H

Abstract
Alcohol consumption likely induces gastric carcinogenesis through deregulation of RNA polymerase (Pol) III genes and oxidative damage. Transcription factor IIB-related factor 1 (BRF1) overexpression alleviates RNA Pol III transcription inhibition through breast cancer susceptibility gene 1 (BRCA1). Myeloperoxidase (MPO) involvement in cancer is induced by alcohol-mediated oxidative damage. BRCA1/2 and MPO play key roles in DNA repair. BRCA1 and BRCA2 exert different roles in homologous recombination repair. By using human gastric cancer (GC) biopsies, we investigated the prognostic value of these proteins upon alcohol induction. In total, high expression of BRF1 (P = 0.010) and positive cell infiltration of MPO (P = 0.004) in tumor tissues as well as positive expression of BRCA1 (P < 0.001) in para-tumor tissues were more frequent in GC patients with hazardous or harmful alcohol consumption habits. BRF1 (P = 0.021), BRCA2 (P < 0.001), and MPO (P = 0.039) were independent prognostic factors for disease-free survival. BRCA1 (P = 0.005) and BRCA2 (P < 0.001) also were identified as independent prognostic factors for overall survival. Furthermore, BRCA2 was an independent unfavorable prognostic factor for disease-free survival and overall survival (P < 0.001) in GC patients who underwent platinum-based adjuvant chemotherapy. BRF1, BRCA1/2, and MPO are DNA repair-related biomarkers, induced by alcohol with prognostic value in GC patients.

PMID: 29331492 [PubMed - as supplied by publisher]




This Month in AJP.

This Month in AJP.

Am J Pathol. 2018 Jan 10;:

Authors:

Abstract
The following highlights summarize research articles that are published in the current issue of The American Journal of Pathology.

PMID: 29331321 [PubMed - as supplied by publisher]