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Counteracting bone fragility with amniotic fluid-derived fetal stem cells

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  • Anna Ranzoni
  • Michelangelo Corcelli
  • Kwan-Leong Hau
  • Jemma Gillian Kerns
  • Maximillien Vanleene
  • Sandra Shefelbine
  • Gemma Jones
  • Dafni Moschidou
  • Benan Dala-Ali
  • Allen Goodship
  • Timothy Arnett
  • Pascale Guillot
Article number39656
<mark>Journal publication date</mark>20/12/2016
<mark>Journal</mark>Scientific Reports
Number of pages11
Publication StatusPublished
<mark>Original language</mark>English


The impaired maturation of bone-forming osteoblasts results in reduced bone formation and subsequent bone weakening, which leads to a number of conditions such as osteogenesis imperfecta (OI). Transplantation of human fetal mesenchymal stem cells has been proposed as skeletal anabolic therapy to enhance bone formation, but the mechanisms underlying the contribution of the donor cells to bone health are poorly understood and require further elucidation. Here, we show that intraperitoneal injection of human amniotic mesenchymal stem cells (AFSCs) into a mouse model of OI (oim mice) reduced fracture susceptibility, increased bone strength, improved bone quality and micro-architecture, normalised bone remodelling and reduced TNFα and TGFβ sigalling. Donor cells engrafted into bones and differentiated into osteoblasts but importantly, also promoted endogenous osteogenesis and the maturation of resident osteoblasts. Together, these findings identify AFSC transplantation as a countermeasure to bone fragility. These data have wider implications in for bone health and fracture reduction.