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Walter, M.C.* ; Liang, S.* ; Ghosh, S.* ; Hornsby, P.J.* ; Li, R.*

Interleukin 6 secreted from adipose stromal cells promotes migration and invasion of breast cancer cells.

Oncogene 28, 2745-55 (2009)
DOI PMC
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Excessive adiposity has long been associated with increased incidence of breast cancer in post-menopausal women, and with increased mortality from breast cancer, regardless of the menopausal status. Although adipose tissue-derived estrogen contributes to obesity-associated risk for estrogen receptor (ER)-positive breast cancer, the estrogen-independent impact of adipose tissue on tumor invasion and progression needs to be elucidated. Here, we show that adipose stromal cells (ASCs) significantly stimulate migration and invasion of ER-negative breast cancer cells in vitro and tumor invasion in a co-transplant xenograft mouse model. Our study also identifies cofilin-1, a known regulator of actin dynamics, as a determinant of the tumor-promoting activity of ASCs. The cofilin-1-dependent pathway affects the production of interleukin 6 (IL-6) in ASCs. Depletion of IL-6 from the ASC-conditioned medium abrogated the stimulatory effect of ASCs on the migration and invasion of breast tumor cells. Thus, our study uncovers a link between a cytoskeleton-based pathway in ASCs and the stromal impact on breast cancer cells.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
ISSN (print) / ISBN 0950-9232
e-ISSN 0950-9232
Zeitschrift Oncogene
Quellenangaben Band: 28, Heft: 30, Seiten: 2745-55 Artikelnummer: , Supplement: ,
Verlag Nature Publishing Group
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Soil Ecology (IBOE)
Institute of Diabetes and Obesity (IDO)