Abstract：
:Clear cell renal cell carcinoma (CCRCC) is the most common renal cell carcinoma. It has a relatively unfavorable prognosis compared to other common renal cell carcinomas. Recently, comprehensive molecular studies in CCRCC revealed important genetic alterations, including changes in the VHL, PBRM1, and ARID1A genes. The expression of ARID1A protein is associated with tumor progression and prognosis in many cancers. This study aimed to evaluate the nuclear expression of ARID1A in CCRCC and to assess its expression with the clinical prognosis. The nuclear expression of ARID1A was evaluated in 290 cases of CCRCC by immunohistochemistry. To determine the clinicopathological association with ARID1A, each of the cases was divided into 2 groups, low- and high-expression groups, according to the average proportion of nuclear staining. Decreased ARID1A expression was associated with the higher nuclear grade and higher pTNM stage (P < .001 and P = .013, respectively). The ARID1A low-expression group revealed significantly shorter cancer-specific and progression-free survival times (P = .001 and P < .001, respectively). Furthermore, Cox regression analysis showed that ARID1A expression was an independent prognostic factor for progression-free survival (P = .009). These results suggest that nuclear expression of ARID1A may serve as a new prognostic marker in CCRCC patients.
journal_name
Hum Patholjournal_title
Human pathologyauthors
Park JH,Lee C,Suh JH,Chae JY,Kim HW,Moon KCdoi
10.1016/j.humpath.2014.12.002subject
Has Abstractpub_date
2015-03-01 00:00:00pages
454-60issue
3eissn
0046-8177issn
1532-8392pii
S0046-8177(14)00496-1journal_volume
46pub_type
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