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A tumor-specific microRNA signature predicts survival in clear cell renal cell carcinoma.
J Cancer Res Clin Oncol ; 141(7): 1291-9, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25633718
ABSTRACT

PURPOSE:

Clear cell renal cell carcinoma (ccRCC) is the most common subtype of kidney cancers in adults, and microRNAs (miRNAs) differentially expressed in ccRCC tumors have been identified and proposed to predict prognosis. In the present study, we comprehensively analyzed the genome-wide miRNA expression profiles in ccRCC, with the aim to generate a tumor-specific miRNA signature of prognostic values.

METHODS:

The miRNA profiles in tumor and the adjacent normal tissue were analyzed, and the association of the differentially expressed miRNAs with patient survival was examined with univariate Cox regression analysis. Finally, a tumor-specific miRNA signature was generated and examined with Kaplan-Meier survival, univariate, and multivariate Cox regression analyses.

RESULTS:

A total of 147 miRNAs were found differentially expressed between tumor and matched non-tumor tissues from 58 ccRCC patients. The prognostic values of these differentially expressed miRNAs were subsequently analyzed in the 411 ccRCC patients, and 22 miRNAs were found significantly correlated with patient survival. Finally, a tumor-specific miRNA signature of 22 miRNAs was generated and validated as an independent prognostic parameter.

CONCLUSIONS:

A tumor-specific miRNA signature consisting of 22 miRNAs was identified and validated as an independent prognostic factor, which could serve as a novel biomarker for ccRCC prognostication and help in predicting treatment outcome.
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Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Assunto principal: Carcinoma de Células Renais / MicroRNAs / Transcriptoma / Neoplasias Renais Tipo de estudo: Estudo de coorte Aspecto clínico: Diagnóstico / Etiologia / Predição / Prognóstico Limite: Adulto / Idoso / Feminino / Humanos / Masculino / Meia-Idade Idioma: Inglês Revista: J Cancer Res Clin Oncol Ano de publicação: 2015 Tipo de documento: Artigo País de afiliação: China