Abstract:
:The treatment of lengthy peripheral nerve defect is challenging in the field of nerve regeneration. Our previous studies have shown that low-intensity pulsed ultrasound (LIPUS) could promote the proliferation, cell viability, and neural differentiation of induced pluripotent stem cells-derived neural crest stem cells (iPSCs-NCSCs) and improve the regeneration of damaged peripheral nerve. In this study, the mechanical signal transduction pathway of LIPUS promoting iPSCs-NCSCs proliferation and differentiation was further explored, and the effects of LIPUS combined with iPSCs-NCSCs, perfluorotributylamine (PFTBA), and growth differentiation factor 5 (GDF5) on the repair of peripheral nerve injury were evaluated. Results showed LIPUS may regulate the proliferation and differentiation of iPSCs-NCSCs through FAK-ERK1/2 signal pathway. PFTBA could supply sufficient oxygen to promote the viability of iPSCs-NCSCs under 5% hypoxia culture condition and provide a favourable microenvironment for nerve regeneration. The addition of GDF5 could promote the neural differentiation of iPSCs-NCSCs in vitro. LIPUS treatment of allogeneic decellularized nerve conduit containing iPSCs-NCSCs, PFTBA, and GDF5 has very good effect on the repair of sciatic nerve injury. Taken together, these results provide functional evidence that LIPUS might be a useful tool to explore alternative approaches in the field of nerve regeneration.
journal_name
J Tissue Eng Regen Medjournal_title
Journal of tissue engineering and regenerative medicineauthors
Xia B,Chen G,Zou Y,Yang L,Pan J,Lv Ydoi
10.1002/term.2823subject
Has Abstractpub_date
2019-04-01 00:00:00pages
625-636issue
4eissn
1932-6254issn
1932-7005journal_volume
13pub_type
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