PMID- 23403103 OWN - NLM STAT- MEDLINE DCOM- 20130903 LR - 20220409 IS - 1872-7972 (Electronic) IS - 0304-3940 (Linking) VI - 541 DP - 2013 Apr 29 TI - Mesenchymal stem cells from trabecular meshwork become photoreceptor-like cells on amniotic membrane. PG - 43-8 LID - S0304-3940(13)00017-7 [pii] LID - 10.1016/j.neulet.2012.12.055 [doi] AB - Stem cell therapy is a promising approach for treatment of degenerative retinal disorders such as retinitis pigmentosa (RP) and age-related macular degeneration (AMD). In this study, human mesenchymal stem cells (MSCs) were isolated from the trabecular meshwork (TM), the major functional tissue of the anterior chamber angle in the eye, were characterized and differentiated into photoreceptor cells on amniotic membrane (AM). After isolation of trabecular meshwork and culture of the stromal segment of this tissue, fibroblast-like cells (CD105(+), CD90(+), CD44(+), CD166(+) cells) capable of differentiation toward mesenchymal and photoreceptor lineages were obtained. The isolated cells were seeded on amniotic membrane and were treated with induction medium. Immunocytochemistry and quantitative real time RT-PCR (qPCR) were used to detect expression of photoreceptor genes such as rhodopsin, recoverin, CRX, and peripherin; and the bipolar cell marker protein kinase C alpha (PKC-alpha). As a result, immunocytochemistry revealed that the differentiated TMMSCs expressed rhodopsin, CRX and PKC proteins. qPCR showed the expression of rhodopsin (rod like photoreceptor-specific marker), and CRX genes were significantly higher in TMMSCs differentiated on AM than those differentiated on tissue culture polystyrene (TCPS). In conclusion, our findings suggested that a combination of TMMSCs (as a new source) and basement membrane support from AM might be a suitable source of cells for subretinal transplantation in regenerative therapy for retinal disorders such as AMD and RP. CI - Copyright (c) 2013 Elsevier Ireland Ltd. All rights reserved. FAU - Nadri, Samad AU - Nadri S AD - Medical Physics and Biomedical Engineering Department, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran. FAU - Yazdani, Shahin AU - Yazdani S FAU - Arefian, Ehsan AU - Arefian E FAU - Gohari, Zahra AU - Gohari Z FAU - Eslaminejad, Mohamadreza Baghaban AU - Eslaminejad MB FAU - Kazemi, Bahram AU - Kazemi B FAU - Soleimani, Masoud AU - Soleimani M LA - eng PT - Journal Article DEP - 20130208 PL - Ireland TA - Neurosci Lett JT - Neuroscience letters JID - 7600130 RN - 0 (Biomarkers) SB - IM MH - Adult MH - Amnion/*cytology MH - Biomarkers/metabolism MH - Cell Differentiation MH - Cells, Cultured MH - Gene Expression MH - Humans MH - Mesenchymal Stem Cells/*cytology MH - Photoreceptor Cells, Vertebrate/*cytology/metabolism MH - Trabecular Meshwork/*cytology EDAT- 2013/02/14 06:00 MHDA- 2013/09/04 06:00 CRDT- 2013/02/14 06:00 PHST- 2012/09/08 00:00 [received] PHST- 2012/12/28 00:00 [revised] PHST- 2012/12/29 00:00 [accepted] PHST- 2013/02/14 06:00 [entrez] PHST- 2013/02/14 06:00 [pubmed] PHST- 2013/09/04 06:00 [medline] AID - S0304-3940(13)00017-7 [pii] AID - 10.1016/j.neulet.2012.12.055 [doi] PST - ppublish SO - Neurosci Lett. 2013 Apr 29;541:43-8. doi: 10.1016/j.neulet.2012.12.055. Epub 2013 Feb 8.