Research Project
Grant-in-Aid for Scientific Research (B)
Mutations of IDH gene are driver mutations in cartilage-forming tumors. To understand the mechanism of tumor specificity and functional role of IDH mutations in tumorigenesis of cartilage-forming tumors, we have performed experiments using human iPS cells. We established iPS cells with a drug-inducible mutant IDH gene in the AAVS1 locus and induced the expression of mutant IDH after the differentiation into mesenchymal stem cells (MSC). As a result, we have observed that mutant IDH has an inhibitor effect for the growth of MSC and as for the effects on differentiation, it inhibited osteogenesis and promoted the expression of cartel-related genes. To recapitulate the tumorigenesis in vitro, we further introduced the knock-out type mutations of p16 gene as a passenger mutation into IDH-AAVS-iPSCs and investigated the tumor forming capacity of iMSCs with mutant IDH and without p16 gene.
All 2017 2016 2015
All Journal Article (7 results) (of which Int'l Joint Research: 1 results, Peer Reviewed: 7 results, Open Access: 4 results, Acknowledgement Compliant: 2 results) Presentation (16 results) (of which Int'l Joint Research: 4 results, Invited: 3 results)
Pathol Int
Volume: 67 Issue: 10 Pages: 495-502
10.1111/pin.12586
Proc. Natl. Acad. Sci. U S A
Volume: 113 Pages: 13057-13062
World J. Surg. Oncol
Volume: 14 Pages: 306-306
PLoS One
Volume: 10 Issue: 11 Pages: e0142991-e0142991
10.1371/journal.pone.0142991
120005749920
Volume: 10 Issue: 7 Pages: e0131998-e0131998
10.1371/journal.pone.0131998
120005756272
Pathology International
Volume: 65 Issue: 9 Pages: 468-75
10.1111/pin.12324
Volume: 65 Issue: 8 Pages: 410-414
10.1111/pin.12319