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Expression of miR-21, miR-31, miR-96 and miR-135b is correlated with the clinical parameters of colorectal cancer.
MedLine Citation:
PMID:  22844381     Owner:  NLM     Status:  Publisher    
The aim of this study was to determine the expression of miR-21, miR-31, miR-96 and miR-135b in 52 paired colorectal cancer (CRC) tissues and to analyze the correlation between microRNAs (miRNAs) and clinicopathological features. We developed a quantification method that relies on a standard plot, constructed from known concentrations of standards, in order to measure the number of miRNAs. In addition to this, we analyzed the expression levels of miR-21, miR-31, miR-96 and miR-135b in 52 cases of primary CRC and corresponding normal mucosal tissue using real-time PCR with SYBR-Green I. An independent sample t-test was used to compare the differential expression between tumor tissues and normal mucosal tissues. The Mann-Whitney U and Kruskall-Wallis tests were used to compare the correlation between miRNA expression levels and clinicopathological features. The expression of miR-21, miR-31, miR-96 and miR-135b was upregulated in the CRC tissues compared to normal mucosal tissues (P<0.05). Furthermore, miR-21 and miR-135b were positively correlated with the clinical stage (P=0.048 and P=0.029, respectively), while miR-96 and miR-135b were correlated with liver metastasis (P=0.006 and P=0.013, respectively). Our results suggest that miR-21, miR-31, miR-96 and miR-135b may function in the process of CRC development and progression. miR-135b levels in particular may correlate with the degree of malignancy.
Xin Min Xu; Jian Chang Qian; Zhou Lu Deng; Zhe Cai; Tao Tang; Peng Wang; Ke Hua Zhang; Jian-Ping Cai
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-5-14
Journal Detail:
Title:  Oncology letters     Volume:  4     ISSN:  1792-1082     ISO Abbreviation:  -     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-7-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101531236     Medline TA:  Oncol Lett     Country:  -    
Other Details:
Languages:  ENG     Pagination:  339-345     Citation Subset:  -    
Graduate School, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730.
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