PMID- 23828471 OWN - NLM STAT- MEDLINE DCOM- 20140409 LR - 20190923 IS - 1678-2925 (Electronic) IS - 0004-2749 (Linking) VI - 76 IP - 2 DP - 2013 Mar-Apr TI - Light-induced retinal injury enhanced neurotrophins secretion and neurotrophic effect of mesenchymal stem cells in vitro. PG - 105-10 LID - S0004-27492013000200010 [pii] AB - PURPOSE: To investigate neurotrophins expression and neurotrophic effect change in mesenchymal stem cells (MSCs) under different types of stimulation. METHODS: Rats were exposed in 10,000 lux white light to develop light-induced retinal injury. Supernatants of homogenized retina (SHR), either from normal or light-injured retina, were used to stimulate MSCs. Quantitative real time for polymerase chain reaction (RT-PCR) and enzyme-linked immunosorbent assay (ELISA) were conducted for analysis the expression change in basic fibroblast growth factor (bFGF), brain-derived neurotrophic factor (BDNF) and ciliary neurotrophic factor (CNTF) in MSCs after stimulation. Conditioned medium from SHR-stimulated MSCs and control MSCs were collected for evaluation their effect on retinal explants. RESULTS: Supernatants of homogenized retina from light-injured rats significantly promoted neurotrophins secretion from MSCs (p<0.01). Conditioned medium from mesenchymal stem cells stimulated by light-injured SHR significantly reduced DNA fragmentation (p<0.01), up-regulated bcl-2 (p<0.01) and down-regulated bax (p<0.01) in retinal explants, displaying enhanced protective effect. CONCLUSIONS: Light-induced retinal injury is able to enhance neurotrophins secretion from mesenchymal stem cells and promote the neurotrophic effect of mesenchymal stem cells. FAU - Xu, Wei AU - Xu W AD - Department of Ophthalmology, First Affiliated Hospital of Fujian Medical University, Fuzhou City, China. FAU - Wang, Xiaoting AU - Wang X FAU - Xu, Guoxing AU - Xu G FAU - Guo, Jian AU - Guo J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Brazil TA - Arq Bras Oftalmol JT - Arquivos brasileiros de oftalmologia JID - 0400645 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Ciliary Neurotrophic Factor) RN - 0 (Nerve Growth Factors) RN - 62031-54-3 (Fibroblast Growth Factors) SB - IM MH - Animals MH - Brain-Derived Neurotrophic Factor/metabolism MH - Cells, Cultured MH - Ciliary Neurotrophic Factor/metabolism MH - Disease Models, Animal MH - Fibroblast Growth Factors/metabolism MH - *Light MH - Mesenchymal Stem Cells/cytology/*metabolism MH - Nerve Growth Factors/*metabolism MH - Random Allocation MH - Rats MH - Rats, Sprague-Dawley MH - Real-Time Polymerase Chain Reaction MH - Retina/cytology/injuries/*radiation effects EDAT- 2013/07/06 06:00 MHDA- 2014/04/10 06:00 CRDT- 2013/07/06 06:00 PHST- 2012/09/24 00:00 [received] PHST- 2013/01/31 00:00 [accepted] PHST- 2013/07/06 06:00 [entrez] PHST- 2013/07/06 06:00 [pubmed] PHST- 2014/04/10 06:00 [medline] AID - S0004-27492013000200010 [pii] AID - 10.1590/s0004-27492013000200010 [doi] PST - ppublish SO - Arq Bras Oftalmol. 2013 Mar-Apr;76(2):105-10. doi: 10.1590/s0004-27492013000200010.