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Lung adenocarcinoma cell-derived exosomal miR-328 promote osteoclastogenesis by targeting Nrp2

Zhang, C. C.; Qin, J.; Yang, L.; Zhu, Z.; Qian, X.; Yang, J.; Su, W.; Wang, F.; Chen, W.; Deng, H.; Wang, Z.

2021-07-09 cancer biology
10.1101/2021.07.08.451611 bioRxiv
Show abstract

Bone metastasis of lung cancer and detailed mechanisms are still elusive, and the roles of exosomes derived from lung adenocarcinoma cells in this process have attracted much attention. In this study, we found that A549 cell-derived exosomes (A549-Exos) promoted osteogenesis and bone resorption in vitro. Furthermore, A549-Exos target bone in vivo and promoted bone resorption in vivo. Mechanistically, A549-Exosomal miR-328 promoted bone resorption by targeting Nrp2 and A549-ExosmiR-328 Inhibitors inhibited bone resorption in vivo. Thus, A549-Exosomal miR-328 promote osteoclastogenesis by targeting Nrp2 and A549-ExosmiR-328 Inhibitors may serve as a potential nanomedicine for the treatment of bone metastasis.

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