TargetRx Atlas

MRNA basic information

  • mRNA ID:ENST00000233146
  • Gene Name:MSH2
  • mRNA database:Ensembl
  • mRNA expression :down-regulated
  • mRNA Method:qRT-PCR
  • mRNA Pathway:NA
  • Evidence:predicted
  • (mRNA-drug)

Drug basic information

  • Drug ID:NA
  • Drug Name:NA
  • Drug Method:NA

Disease basic infommation

  • Disease:lung cancer
  • Tissue:The human small cell lung carcinoma cell NCI-H446, human lung carcinoma cell A549, human large cell carcinoma cell NCI-H460, and human cervical carcinoma cell HeLa

Other information

  • Title:miR-21 induces cell cycle at S phase and modulates cell proliferation by down-regulating hMSH2 in lung cancer
  • Journal:Journal of cancer research and clinical oncology
  • Published:2012
  • PubMed ID:22806311
  • Abstract:Purpose:MicroRNAs regulate critical genes associated with lung cancer. Human mutS homolog 2 (hMSH2), one of the core mismatch repair genes, is affected in lung cancer development. The aim of this study is to investigate the role of miR-21 in hMSH2 gene expression and the effect of miR-21 on cell proliferation and cell cycle in lung cancer. Methods:The targets of miR-21 were predicted by a bioinformatics tool, and hMSH2 was validated as a direct target of miR-21 by luciferase activity assay. MiRNA mimics or inhibitors were used to stimulate or attenuate the effect of endogenous miR-21 on hMSH2 expression. MiR-21 and hMSH2 expressions were assessed with real-time RT-PCR and Western blotting. Cell cycle was determined by flow cytometry, and cell growth was analyzed by MTT assay and real-time cell analysis system. Results:MiR-21 expression was inversely correlated with hMSH2 expression in human lung cancer cell lines. Further validation showed hMSH2 was directly regulated by miR-21. The up-regulation of miR-21 significantly promoted cell proliferation and revealed a higher proportion of cells at S phase. However, knockdown of miR-21 expression resulted in cell cycle arrest at G2/M phase and inhibited cell proliferation. Conclusions:These data suggest miR-21 is a key regulator of hMSH2 and modulates cell cycle and proliferation by targeting hMSH2 in human lung cancer.