Abstract:
OBJECTIVE:To examine the prognostic significance of the expression of platelet-derived growth factor-BB (PDGF-BB) and differentiated microvascular density (MVD) in patients with clear cell renal cell carcinoma (ccRCC). PATIENTS AND METHODS:We used the vascular marker cluster of differentiation 34 (CD34) to identify tumour blood vessels. The expression of PDGF-BB and CD34 was detected by immunohistochemistry (IHC) in tissue microarrays (TMAs) from 100 ccRCCs. Prognostic effects of individual parameters were calculated using Cox regression models and Harrell's concordance index (c-index). RESULTS:Higher grade and more advanced stage ccRCCs had significantly less PDGF-BB expression and differentiated MVD (P < 0.05). Higher PDGF-BB expression was an independent prognostic factor for longer survival, and moreover, the final model built by the addition of PDGF-BB expression improved the predictive accuracy for disease-free survival (c-index 0.707) compared with the clinicopathological-based model (c-index 0.695). PDGF-BB expression was positively associated with differentiated MVD assessed by Spearman correlation and factor analysis (r = 0.634, P < 0.001). CONCLUSION:PDGF-BB is as a novel and promising prognostic marker and antiangiogenic therapeutic target for the treatment of ccRCC.
journal_name
BJU Intjournal_title
BJU internationalauthors
Qi L,Du J,Zhang Z,Diao L,Chen X,Yao Xdoi
10.1111/bju.12191subject
Has Abstractpub_date
2013-08-01 00:00:00pages
E415-23issue
4eissn
1464-4096issn
1464-410Xjournal_volume
112pub_type
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pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:2001-09-01 00:00:00
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更新日期:2000-03-01 00:00:00
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