【Objective】 The bioinformatics analysis about hsa-miR-378 was performed,including transcription regulation prediction and function analysis of target genes,in order to lay foundation and provide the basis for the further studies in human preadipocytes differentiation. 【Methods】 Online tools,such as NCBI Mapviewer,UCSC Genome Browser and Promoter scan,were used for prediction of the CpG island,transcription start position (TSS),transcription factor binding sites (TFBS),etc.TargetScan,PicTar and miRanda were used to predict target genes of hsa-miR-378.The intersection of the three results and validated targets from DIANA LAB-TarBase 6.0 datebase were analyzed by gene ontology and pathway analysis. 【Results】 hsa-miR-378 might had an independent promoter with C/EBP β transcription factor binding sites.The gene ontology analysis showed the predicted target genes were enriched in transcriptional regulation,protein modification,cell differentiation and other biological processes(P<0.01).The pathway analysis showed the target genes mainly involved in 4 signaling pathways such as TGF-β signaling pathway,Wnt signaling pathway,and 8 disease pathways such as thyroid cancer,systemic lupus erythematosus(P<0.05). 【Conclusion】 The analysis about transcriptional regulatory elements and target genes of hsa-miR-378 lie the foundation for subsequent research about its function and regulatory mechanism in human preadipocytes.
Key words
hsa-miR-378 /
microRNA /
bioinformatics analysis /
adipocytes differentiation /
obesity
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References
[1] Lagos-Quintana M,Rauhut R,Lendeckel W,et al.Identification of novel genes coding for small expressed RNAs[J].Science,2001,294(5543):853-858.
[2] Lee DY,Deng Z,Wang CH,et al.MicroRNA-378 promotes cell survival,tumor growth,and angiogenesis by targeting SuFu and Fus-1 expression[J].Proc Natl Acad Sci USA,2007,104(51):20350-20355.
[3] Kahai S,Lee SC,Lee DY,et al.MicroRNA miR-378 regulates nephronectin expression modulating osteoblast differentiation by targeting GalNT-7[J].PLoS One,2009,4(10):e7535.
[4] John E,Wienecke-Baldacchino A,Liivrand M,et al.Dataset integration identifies transcriptional regulation of microRNA genes by PPARgamma in differentiating mouse 3T3-L1 adipocytes[J/OL].Nucleic Acids Res,2012 Feb 7.[Epub ahead of print]DOI:10.1093/nar/gks025.
[5] Lewis BP,Shih IH,Jones-Rhoades MW,et al.Prediction of mammalian microRNA targets[J].Cell,2003,115(7):787-798.
[6] Krek A,Grun D,Poy MN,et al.Combinatorial microRNA target predictions[J].Nat Genet,2005,37(5):495-500.
[7] John B,Enright AJ,Aravin A,et al.Human microRNA targets[J].PLoS Biol,2004,2(11):e363.
[8] Maere S,Heymans K,Kuiper M.BINGO:a Cytoscape plugin to assess overrepresentation of gene ontology categories in biological networks[J].Bioinformatics,2005,21(16):3448-3449.
[9] Hafner M,Landthaler M,Burger L,et al.Transcriptome-wide identification of RNA-binding protein and microRNA target sites by PAR-CLIP[J].Cell,2010,141(1):129-141.
[10] Bartel DP.MicroRNAs:genomics,biogenesis,mechanism,and function[J].Cell,2004,116(2):281-297.
[11] Bushati N,Cohen SM.MicroRNA functions[J].Annu Rev Cell Dev Biol,2007,23:175-205.
[12] Gerin I,Bommer GT,Mccoin CS,et al.Roles for miRNA-378/378(*) in adipocyte gene expression and lipogenesis[J].Am J Physiol Endocrinol Metab,2010,299(2):e198-e206.
[13] Eichner LJ,Perry MC,Dufour CR,et al.miR-378(*) mediates metabolic shift in breast cancer cells via the PGC-1beta/ERRgamma transcriptional pathway[J].Cell Metab,2010,12(4):352-361.
[14] Liu H,Zhu L,Liu B,et al.Genome-wide microRNA profiles identify miR-378 as a serum biomarker for early detection of gastric cancer[J].Cancer Lett,2012,316(2):196-203.
[15] Chen LT,Xu SD,Xu H,et al.MicroRNA-378 is associated with non-small cell lung cancer brain metastasis by promoting cell migration,invasion and tumor angiogenesis[J/OL].Med Oncol,2011 Nov 4.[Epub ahead of print]DOI:10.1007/s12032-011-0083-x.
[16] Feng M,Li Z,Aau M,et al.Myc/miR-378/TOB2/cyclin D1 functional module regulates oncogenic transformation[J].Oncogene,2011,30(19):2242-2251.
[17] Mohri T,Nakajima M,Fukami T,et al.Human CYP2E1 is regulated by miR-378[J].Biochem Pharmacol,2010,79(7):1045-1052.
[18] Fang J,Song XW,Tian J,et al.Overexpression of microRNA-378 attenuates ischemia-induced apoptosis by inhibiting caspase-3 expression in cardiac myocytes[J].Apoptosis,2012,17(4):410-423.