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Neoplasma Vol.68, No.6, p.1310–1319, 2021 |
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Title: Expression and prognostic significance of the DNA damage response pathway and autophagy markers in gastric cancer | ||
Author: Xin-Bo Xu, Nians-Huang Li, Huan Wang, Yi Hu, Xi-Dong Wu, Jun-Bo Hong, Nong-Hua Lu, Chuan Xie | ||
Abstract: Gastric cancer (GC) is a leading cause of mortality and morbidity worldwide. We assessed the expression patterns of DNA damage response (DDR)-related markers, including ATM, CHK2, p-p53 (S15), Rad51, and BRCA2 and autophagy-related proteins including p62 and Beclin-1 in 153 GC specimens using immunohistochemistry staining. GC tissues showed lower levels of ATM, CHK2, p-p53, BRCA2, and higher levels of Rad51 compared to adjacent normal tissues. The autophagy-related protein p62 was upregulated, whereas Beclin-1 was downregulated in human GC groups. Additionally, different statuses of DDR pathways and autophagy characterized by protein expression were associated with overall survival. Our results indicated that the impairment of DNA damage and autophagy may be implicated in gastric cancer progression and its clinical prognosis. |
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Keywords: DNA damage response; autophagy; gastric carcinoma; immunohistochemistry | ||
Published online: 25-Oct-2021 | ||
Year: 2021, Volume: 68, Issue: 6 | Page From: 1310, Page To: 1319 | |
doi:10.4149/neo_2021_210515N667 |
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