Bone marrow-derived myofibroblasts contribute to the mesenchymal stem cell niche and promote tumor growth

By M. Quante, S. Tu, H. Tomita, T. Gonda, Sophie S. W. Wang, Shigeo Takashi, G. Baik, W. Shibata, Bethany Diprete, Kelly S. Betz and 4 more. Cancer Cell, 2011

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Summary Carcinoma associated fibroblasts (CAFs) that express α-smooth-muscle-actin (αSMA) contribute to cancer progression, but their precise origin and role is 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 (MF) 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 TGF-β- and SDF-1α-dependent manner. Carcinogenesis therefore involves expansion and relocation of BM-niche cells to the tumor to create a niche to sustain cancer progression.

Subfields: Genetics, Oncology, Pulmonary and Respiratory Medicine

View Paper: https://www.semanticscholar.org/paper/0fcec4bf085ef3ea6f74af9e9d91b98ad9be1068

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In Oncology

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In Pulmonary and Respiratory Medicine

  1. B. Hinz
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  3. Nikolaos G. Frangogiannis
  4. TA Wynn

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