Increased endostatin generation and decreased angiogenesis via MMP-9 by tamoxifen in hormone dependent ovarian cancer
2010 (English)In: CANCER LETTERS, ISSN 0304-3835, Vol. 292, no 1, 32-40 p.Article in journal (Refereed) Published
There are several similarities between breast and ovarian cancer but anti-estrogen treatment is rarely used in ovarian cancer. We have previously shown that the most widely used anti-estrogen tamoxifen increased MMP-9 activity and endostatin generation in breast cancer. Here, we show that tamoxifen exposure of highly hormone responsive ovarian cancer cells decreased proliferation, and increased MMP-9 activity leading to increased levels of endostatin both in cell culture in vitro and in solid tumors of nude mice. Tamoxifen exposed tumors also exhibited significantly decreased tumor growth and vascularisation. Moreover, in ascites from ovarian cancer patients, MMP-9 was undetectable in majority of cases but a significant correlation of MMP-2 and endostatin was found. The effects on MMPs and endostatin generation are previously unknown mechanisms of estradiol and tamoxifen in ovarian cancer, which may have therapeutic implications in future anti-cancer options of hormone dependent ovarian cancer.
Place, publisher, year, edition, pages
Elsevier Science B.V., Amsterdam. , 2010. Vol. 292, no 1, 32-40 p.
Estradiol, Sex steroids, Collagen, Microenvironment, Ascites
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:liu:diva-56806DOI: 10.1016/j.canlet.2009.11.002ISI: 000277744800005OAI: oai:DiVA.org:liu-56806DiVA: diva2:322256
Christina Bendrik, Lisa Karlsson and Charlotta Dabrosin, Increased endostatin generation and decreased angiogenesis via MMP-9 by tamoxifen in hormone dependent ovarian cancer, 2010, CANCER LETTERS, (292), 1, 32-40.
Copyright: Elsevier Science B.V., Amsterdam.