Abstract:
:The ideal strategy for hair cell regeneration is promoting residual supporting cell proliferation followed by induction of hair cell differentiation. In this study, cultured neonatal mouse organs of Corti were treated with neomycin to eliminate hair cells followed by incubation with recombined adenovirus expressing Pax2 and/or Math1. Results showed that overexpression of Pax2 significantly promoted proliferation of supporting cells. The number of BrdU⁺/myosin VIIA⁺ cells increased significantly in hair cell pre-existing region two weeks after adenovirus infection in Ad-Pax2-IRES-Math1 group compared to Ad-Pax2 and Ad-Math1 groups. This indicated that cotransfection of Pax2 and Math1 induced supporting cells to proliferate and differentiate into hair cells in situ. Most new hair cells were labeled by FM1-43 suggesting they acquired certain function. The results also suggest that inducing proliferating cells rather than quiescent cells to differentiate into hair cells by forced expression of Math1 is feasible for mammalian hair cell regeneration.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Chen Y,Yu H,Zhang Y,Li W,Lu N,Ni W,He Y,Li J,Sun S,Wang Z,Li Hdoi
10.1038/srep02996subject
Has Abstractpub_date
2013-10-21 00:00:00pages
2996issn
2045-2322pii
srep02996journal_volume
3pub_type
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