c-Fos induces chondrogenic tumor formation in immortalized human mesenchymal progenitor cellsMore about Open Access at the Crick
Authors listAnder Abarrategi Stefano Gambera Arantzazu Alfranca Miguel A Rodriguez-Milla Raquel Perez-Tavarez Kevin Rouault-Pierre Alexander Waclawiczek Probir Chakravarty Francisca Mulero César Trigueros Samuel Navarro Dominique Bonnet Javier García-Castro
Mesenchymal progenitor cells (MPCs) have been hypothesized as cells of origin for sarcomas, and c-Fos transcription factor has been showed to act as an oncogene in bone tumors. In this study, we show c-Fos is present in most sarcomas with chondral phenotype, while multiple other genes are related to c-Fos expression pattern. To further define the role of c-Fos in sarcomagenesis, we expressed it in primary human MPCs (hMPCs), immortalized hMPCs and transformed murine MPCs (mMPCs). In immortalized hMPCs, c-Fos expression generated morphological changes, reduced mobility capacity and impaired adipogenic- and osteogenic-differentiation potentials. Remarkably, immortalized hMPCs or mMPCs expressing c-Fos generated tumors harboring a chondrogenic phenotype and morphology. Thus, here we show that c-Fos protein has a key role in sarcomas and that c-Fos expression in immortalized MPCs yields cell transformation and chondrogenic tumor formation.
Journal Scientific Reports
Issue number 1