Epidermal growth factor promotes MDA-MB-231 breast cancer cell migration through a phosphatidylinositol 3'-kinase and phospholipase C-dependent mechanism

John T. Price, Tony Tiganis, Anurag Agarwal, Daniel Djakiew, Erik W. Thompson

Research output: Contribution to journalArticleResearchpeer-review

195 Citations (Scopus)

Abstract

Epidermal growth factor receptor (EGFR) levels predict a poor outcome in human breast cancer and are most commonly associated with proliferative effects of epidermal growth factor (EGF), with little emphasis placed on motogenic responses to EGF. We found that MDA-MB-231 human breast cancer cells elicited a potent chemotactic response despite their complete lack of a proliferative response to EGF. Antagonists of EGFR ligation, the EGFR kinase, phosphatidylinositol 3'-kinase, and phospholipase C, but not the mitogen- activated protein kinases (extracellular signal-regulated protein kinase 1 and 2), blocked MDA-MB-231 chemotaxis. These findings suggest that EGF may influence human breast cancer progression via migratory pathways, the signaling for which appears to be dissociated, at least in part, from the proliferative pathways.

Original languageEnglish
Pages (from-to)5475-5478
Number of pages4
JournalCancer Research
Volume59
Issue number21
Publication statusPublished - 1 Nov 1999
Externally publishedYes

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