Research Project
Grant-in-Aid for Scientific Research (C)
We investigated a mechanism why hepatocytes express Heregulin(HRG) in the situation of hepatic metastasis of colorectal cancer. Immunohistochemical(IHC) examination on human specimen of hepatic metastasis revealed that HRG was expressed in hepatocytes at 88.7 %. The expression was evident in hepatocytes which were close to the metastatic tumor but not in those which were contact to the tumor with being injured nor in far region. Dimethylnitrosoamine(DMN) caused significantly increased expression of HRG mRNA in rat hepatocytes from day 1 compared with that of the control. IHC examination revealed that HRG expression in hepatocytes started from day 1 around the area of Glisson's capsule but not in the area of central zone of hepatic lobules where were injured by DMN. Partial hepatectomy also revealed that hepatocytes in the residual liver expressed HRG. These results suggest that HRG expression is appeared in the residual hepatocytes in the stage of injury and regeneration of the liver.
All 2014 2013 2012 2011 Other
All Journal Article (6 results) (of which Peer Reviewed: 1 results) Presentation (9 results) Book (2 results) Remarks (1 results)
Cell Death Differ
Volume: 21 Pages: 797-810
Cell Death Differ.
Volume: 21(5) Issue: 5 Pages: 797-810
10.1038/cdd.2014.3
J. Clin. Invest.
Volume: 123 Pages: 682-699
J. Cell. Biochem.
Volume: 114 Pages: 831-843
120006522736
Am J Pathol.
Volume: 181 Pages: 2094-2104
120006658774
Int. J. Cancer
Volume: 128 Pages: 51-62
http://WWW.med.akita-u.ac.jp/~byouri1/