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10.7150/ijbs.56657

http://scihub22266oqcxt.onion/10.7150/ijbs.56657
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33867845!8040480!33867845
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suck abstract from ncbi


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pmid33867845      Int+J+Biol+Sci 2021 ; 17 (5): 1277-1288
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  • SARS-CoV-2-induced Overexpression of miR-4485 Suppresses Osteogenic Differentiation and Impairs Fracture Healing #MMPMID33867845
  • Mi B; Xiong Y; Zhang C; Zhou W; Chen L; Cao F; Chen F; Geng Z; Panayi AC; Sun Y; Wang L; Liu G
  • Int J Biol Sci 2021[]; 17 (5): 1277-1288 PMID33867845show ga
  • The angiotensin-converting enzyme 2 (ACE2) receptor has been identified as the cell entry point for SARS-CoV-2. Although ACE2 receptors are present in the bone marrow, the effects of SARS-CoV-2 on the biological activity of bone tissue have not yet been elucidated. In the present study we sought to investigate the impact of SARS-CoV-2 on osteoblastic activity in the context of fracture healing. MicroRNA-4485 (miR-4485), which we found to be upregulated in COVID-19 patients, negatively regulates osteogenic differentiation. We demonstrate this effect both in vitro and in vivo. Moreover, we identified the toll-like receptor 4 (TLR-4) as the potential target gene of miR-4485, and showed that reduction of TLR-4 induced by miR-4485 suppresses osteoblastic differentiation in vitro. Taken together, our findings highlight that up-regulation of miR-4485 is responsible for the suppression of osteogenic differentiation in COVID-19 patients, and TLR-4 is the potential target through which miR-4485 acts, providing a promising target for pro-fracture-healing and anti-osteoporosis therapy in COVID-19 patients.
  • |*Cell Differentiation[MESH]
  • |*Fracture Healing[MESH]
  • |*Osteogenesis[MESH]
  • |Adult[MESH]
  • |Aged[MESH]
  • |Aged, 80 and over[MESH]
  • |Angiotensin-Converting Enzyme 2/metabolism[MESH]
  • |COVID-19/*pathology/virology[MESH]
  • |Female[MESH]
  • |Humans[MESH]
  • |Male[MESH]
  • |MicroRNAs/*metabolism[MESH]
  • |Middle Aged[MESH]
  • |SARS-CoV-2/isolation & purification/*physiology[MESH]


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