MEMO1, a new IRS1-interacting protein, induces epithelial-mesenchymal transition in mammary epithelial cells.

Abstract:

:MEMO1 (mediator of ErbB2-driven cell motility 1) regulates HER2-dependent cell migration. Increased MEMO1 expression is associated with cancer aggressiveness. Here, we found that MEMO1 is also involved in breast carcinogenesis via regulating insulin-like growth factor-I receptor-dependent signaling events. We showed that MEMO1 binds to insulin receptor substrate 1, activates the downstream PI3K/Akt signaling pathway, leads to upregulation of Snail1 and thereby triggers the epithelial-mesenchymal transition (EMT) program. In addition, MEMO1 overexpression is accompanied by growth factor-independent proliferation, anchorage-independent growth in soft agar, and enhanced metastatic potential. Together, these findings suggest that MEMO1 acts as an oncogene and is a potential therapeutic target for cancer treatment.

journal_name

Oncogene

journal_title

Oncogene

authors

Sorokin AV,Chen J

doi

10.1038/onc.2012.327

subject

Has Abstract

pub_date

2013-06-27 00:00:00

pages

3130-8

issue

26

eissn

0950-9232

issn

1476-5594

pii

onc2012327

journal_volume

32

pub_type

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