Research Project
Grant-in-Aid for Scientific Research (A)
Early hepatocellular carcinoma (HCC) is histologically diagnosed as the existence of intratumoral portal tracts and develops into classical HCC. To identify sequential genomic changes in stepwise hepatocarcinogenesis, we analyzed 47 early and 105 classical HCCs using next generation sequencer. Mutations in p53/RB and WNT pathways were recurrently observed both in early and classical HCCs. Exome and RNA sequences frequently showed mutation of promoter region and increased expression of TERT. On the other hand, inactivation in SWI/SNF complexes were observed more often in classical HCC (23.8%) than early HCC (8.5%, P=0.027), and mTOR/PI3K pathway was aberrantly activated in classical HCC (8.5% vs 29.5%, P=0.003) by integrated analysis. Taken together, inactivating mutations of p53/RB and WNT signaling pathways and TERT up-regulation are the first events in hepatocarcinogenesis and aberrations of SWI/SNF complexes and mTOR/PI3K pathway may play pivotal roles in the progression of HCC.
All 2015 2014 2013 2012
All Journal Article (16 results) (of which Peer Reviewed: 16 results, Acknowledgement Compliant: 2 results, Open Access: 2 results) Presentation (7 results) Book (6 results)
Journal of Hepatobiliary Pancreatic Science
Volume: in press Issue: 8 Pages: 585-591
10.1002/jhbp.101
Hepatology
Volume: 61(2) Issue: 2 Pages: 438-47
10.1002/hep.27426
Nat Genet.
Volume: 46 Issue: 12 Pages: 1267-73
10.1038/ng.3126
World Journal of Surgery
Volume: 39 Issue: 2 Pages: 471-7
10.1007/s00268-014-2828-0
Cancer Med.
Volume: 3 Issue: 5 Pages: 1235-45
10.1002/cam4.273
J Hepatobiliary Pancreat Sci
Volume: 21 Issue: 7 Pages: 509-517
10.1002/jhbp.93
Surg Today
Volume: 43 Issue: 8 Pages: 865-870
10.1007/s00595-012-0308-4
10031189765
World J Suegery
Volume: 37 Issue: 4 Pages: 847-853
10.1007/s00268-012-1887-3
Cancer Chemother Pharmacol
Volume: 71 Issue: 3 Pages: 727-731
10.1007/s00280-012-2066-9
J Hepatolo
Volume: 58 Issue: 2 Pages: 306-11
10.1016/j.jhep.2012.09.026
Br J Surg
Volume: 99 Issue: 11 Pages: 1584-90
10.1002/bjs.8916
J Surg Res
Volume: 172 Issue: 1 Pages: 133-8
10.1016/j.jss.2012.01.003
Proc. Natl. Acad. Sci.USA
Volume: 109 Issue: 50 Pages: 20584-20589
10.1073/pnas.1208651109
The EMBO journal
Volume: 31 Issue: 23 Pages: 4404-4414
10.1038/emboj.2012.288
J Neurosci
Volume: 32 Pages: 12543-57
Mol Cell Biol.
Volume: Aug;32(15) Issue: 15 Pages: 3018-3032
10.1128/mcb.06643-11