Research Project
Grant-in-Aid for Scientific Research (C)
Several molecular therapeutics targeting protein tyrosine kinases have recently been attempted; however, an emerging drug resistance is a crucial issue. Glioblastoma multiforme (GBM) is the most common and aggressive brain tumor. Despite technological advances in surgery, combined with regimens of radiotherapy and new generation chemotherapy with temozolomide, the median survival is still 15 months. Here, we established cell lines acquired drug resistance to individual tyrosine kinase inhibitor (TKI) for EGFR, c-Met, and PDGFR that highly expressed in GBM, and characterized the underlying mechanisms. We found that c-Met inhibitor effectively abrogated TKIs-dependent enhancement of phosphorylation of EGFR, although it did not effect on the ATP-binding ability of EGFR. In addition, the combination therapy of c-Met and PI3K inhibitors might be a powerful approach to abolish the TKI resistance for molecular target therapy in GBM, by inhibiting phosphorylations of Akt, Src, and p38 MAPK.
All 2015 2014 2013 2012 Other
All Journal Article (17 results) (of which Peer Reviewed: 17 results, Open Access: 2 results) Presentation (45 results) Book (3 results) Remarks (3 results) Patent(Industrial Property Rights) (2 results)
Cancer Sci
Volume: in press Issue: 6 Pages: 709-17
10.1111/cas.12662
PLoS One
Volume: 9 Issue: 5 Pages: 671-685
10.1093/neuonc/not239
120005385325
Neuro Oncol.
Volume: 16 Pages: 960-970
J Gastroenterology
Volume: 49 Issue: 1 Pages: 81-92
10.1007/s00535-013-0773-6
120005537455
Cancer Sci.
Volume: 105 Issue: 9 Pages: 1152-1159
10.1111/cas.12479
120005515315
Brain Tumor Pathol.
Volume: 31 Issue: 2 Pages: 118-23
10.1007/s10014-013-0158-9
Neuro-Oncology
Volume: 15 Issue: 7 Pages: 853-64
10.1093/neuonc/not028
Japanese Journal of Infectious Diseases
Volume: 66 Issue: 2 Pages: 126-132
10.7883/yoken.66.126
130003381654
J Pathol.
Volume: 229 Issue: 5 Pages: 743-754
10.1002/path.4158
Nature Co㎜unnications
Volume: 4 Issue: 1 Pages: 2-763
10.1038/ncomms3763
Biochem Biophys Res Commun
Volume: 441 Issue: 4 Pages: 953-7
10.1016/j.bbrc.2013.11.011
120005367439
Prog Mol Biol Transl Sci.
Volume: 113 Pages: 313-348
10.1016/b978-0-12-386932-6.00008-9
Jpn J Infect Dis.
Volume: 66 Pages: 126-132
J Gastroenterol.
Volume: in press
European journal of cancer(Oxford,England:1990)
Volume: 48 Issue: 15 Pages: 2417-2430
10.1016/j.ejca.2011.12.028
Genes & Cancer
Volume: 3 Issue: 5-6 Pages: 334-340
10.1177/1947601912458687
http://patho2.med.hokudai.ac.jp/