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DNA Damage Response Pathway Alteration in Locally Advanced Clear-Cell Renal-Cell Carcinoma Is Associated With a Poor Outcome

Authors
 Joon Chae Na  ;  Naoya Nagaya  ;  Koon Ho Rha  ;  Woong Kyu Han  ;  Isaac Yi Kim 
Citation
 Clinical Genitourinary Cancer, Vol.17(4) : 299-305, 2019 
Journal Title
 Clinical Genitourinary Cancer 
ISSN
 1558-7673 
Issue Date
2019
Abstract
BACKGROUND: Advanced clear-cell renal-cell carcinoma (ccRCC), which is the most common subtype of kidney cancer, is considered to be lethal despite recent advancements in therapeutic agents. The benefit of adjuvant or neoadjuvant therapy with currently available agents remains controversial. We investigated the clinical implications of DNA damage response (DDR) pathway for locally advanced ccRCC. PATIENTS AND METHODS: Localized ccRCC cases were selected from the Provisional TCGA (The Cancer Genome Atlas) database. Presence of mutation or copy-number alteration of DDR pathway-related genes were evaluated. Disease-free survival and overall survival according to disease progression were evaluated. RESULTS: From TCGA database, 312 cases were identified of a localized ccRCC with full data on mutation and copy-number alteration. Alteration in the DDR pathway was present in 25.0% of cases. Female subjects were more likely to have alterations in the DDR pathway (34.6% vs. 48.7%, P = .026). DDR pathway alteration was associated with decreased disease-free survival in cases of locally advanced T3-4 disease (median, 123.7 vs. 23.0 months, T3 and T4 disease, P = .031). The association was more prominent in cases of T3a disease (normal group median not reached, altered group median 17.7 months, P < .001). DDR pathway alteration was an independent factor predicting a shorter disease-free survival on Cox regression analysis (odds ratio = 4.41; 95% confidence interval, 1.47∼13.28; P = .008). CONCLUSION: Alteration in the DDR pathway was associated with increased recurrence in locally advanced ccRCC, and investigation of therapeutic agents targeting the DDR pathway for this population should be considered.
Full Text
https://www.sciencedirect.com/science/article/pii/S1558767319301430
DOI
10.1016/j.clgc.2019.05.004
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Urology (비뇨의학교실) > 1. Journal Papers
Yonsei Authors
Rha, Koon Ho(나군호) ORCID logo https://orcid.org/0000-0001-8588-7584
Na, Joon Chae(나준채) ORCID logo https://orcid.org/0000-0003-4449-8472
Han, Woong Kyu(한웅규) ORCID logo https://orcid.org/0000-0002-2527-4046
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/171157
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