We investigated manifestation in prostate cancer of hepatocyte growth factor activator(HGFA) inhibitor type 1(HAI-1). HAI-1 is inhibitor for HGFA. HAI-1 appeared in prostate epithelial cell, but did not appear in stromal cell by immunohistochemistry(IHC). Examination with prostate biopsy specimens, the HAI-1 expression was not observed for some case. We defined HAI-1 expression intensity as negative, weak, moderate and strong. We analyzed the relationship between HAI-1 expression and several clinicopathological factors. Expression of HAI-1 by IHC in patients with prostate cancer was significantly higher than those with negative for prostate biopsy. There were no significant differences in HAI-1 expression with respect to clinical stages or tumor grades. However castration resistance prostate cancer showed significantly lower HAI-1 expression than untreated metastatic prostate cancer.
Status
Finished
Effective start/end date
2009/01/01 → 2011/12/31
Funding
Japan Society for the Promotion of Science: ¥3,250,000.00