Muscle Stem Cells Give Rise to Rhabdomyosarcomas in a Severe Mouse Model of Duchenne Muscular Dystrophy
Autor: | David Fox, Francesca Boscolo Sesillo, Alessandra Sacco |
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Rok vydání: | 2019 |
Předmět: |
musculoskeletal diseases
0301 basic medicine Duchenne muscular dystrophy Context (language use) Biology Article General Biochemistry Genetics and Molecular Biology Mice 03 medical and health sciences 0302 clinical medicine Rhabdomyosarcoma medicine Animals Muscular dystrophy Muscle Skeletal Stem Cells musculoskeletal neural and ocular physiology Regeneration (biology) Soft tissue sarcoma Skeletal muscle medicine.disease Muscular Dystrophy Duchenne Disease Models Animal 030104 developmental biology medicine.anatomical_structure Cancer research Stem cell 030217 neurology & neurosurgery |
Zdroj: | Cell Reports. 26:689-701.e6 |
ISSN: | 2211-1247 |
Popis: | Most human cancers originate from high-turnover tissues, while low-proliferating tissues, like skeletal muscle, exhibit a lower incidence of tumor development. In Duchenne muscular dystrophy (DMD), which induces increased skeletal muscle regeneration, tumor incidence is increased. Rhabdomyosarcomas (RMSs), a rare and aggressive type of soft tissue sarcoma, can develop in this context, but the impact of DMD severity on RMS development and its cell of origin are poorly understood. Here, we show that RMS latency is affected by DMD severity and that muscle stem cells (MuSCs) can give rise to RMS in dystrophic mice. We report that even before tumor formation, MuSCs exhibit increased self-renewal and an expression signature associated with RMSs. These cells can form tumorspheres in vitro and give rise to RMSs in vivo. Finally, we show that the inflammatory genes Ccl11 and Rgs5 are involved in RMS growth. Together, our results show that DMD severity drives MuSC-mediated RMS development. |
Databáze: | OpenAIRE |
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