Bone Marrow-Derived Myofibroblasts Contribute to the Mesenchymal Stem Cell Niche and Promote Tumor Growth

Michael Quante, Shui Ping Tu, Hiroyuki Tomita, Tamas Gonda, Sophie S.W. Wang, Shigeo Takashi, Gwang Ho Baik, Wataru Shibata, Bethany DiPrete, Kelly S. Betz, Richard Friedman, Andrea Varro, Benjamin Tycko, Timothy C. Wang

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

873 Zitate (Scopus)

Abstract

Carcinoma-associated fibroblasts (CAFs) that express α-smooth muscle actin (αSMA) contribute to cancer progression, but their precise origin and role are unclear. Using mouse models of inflammation-induced gastric cancer, we show that at least 20% of CAFs originate from bone marrow (BM) and derive from mesenchymal stem cells (MSCs). αSMA+ myofibroblasts (MFs) are niche cells normally present in BM and increase markedly during cancer progression. MSC-derived CAFs that are recruited to the dysplastic stomach express IL-6, Wnt5α and BMP4, show DNA hypomethylation, and promote tumor growth. Moreover, CAFs are generated from MSCs and are recruited to the tumor in a TGF-β- and SDF-1α-dependent manner. Therefore, carcinogenesis involves expansion and relocation of BM-niche cells to the tumor to create a niche to sustain cancer progression.

OriginalspracheEnglisch
Seiten (von - bis)257-272
Seitenumfang16
FachzeitschriftCancer Cell
Jahrgang19
Ausgabenummer2
DOIs
PublikationsstatusVeröffentlicht - 15 Feb. 2011
Extern publiziertJa

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