PMID- 21561324 OWN - NLM STAT- MEDLINE DCOM- 20120522 LR - 20120201 IS - 1557-8534 (Electronic) IS - 1547-3287 (Linking) VI - 21 IP - 3 DP - 2012 Feb 10 TI - Recruitment of stem cells into the injured retina after laser injury. PG - 448-54 LID - 10.1089/scd.2011.0002 [doi] AB - Retinal degeneration is a devastating complication of diabetes and other disorders. Stem cell therapy for retinal degeneration has shown encouraging results but functional regeneration has not been yet achieved. Our study was undertaken to evaluate the localization of stem cells delivered to the retina by intravenous versus intravitreal infusion, because stem cell localization is a key factor in ultimate in vivo function. We used lineage-negative bone marrow-derived stem cells in a model wherein retina of mice was induced by precise and reproducible laser injury. Lin(-ve) bone marrow cells (BMCs) were labeled with a tracking dye and their homing capacity was analyzed at time points after infusion. We found that Lin(-ve) BMCs get incorporated into laser-injured retina when transplanted through either the intravitreal or intravenous route. The intravenous route resulted in optimal localization of donor cells at the site of injury. These cells incorporated into injured retina in a dose-dependent manner. The data presented in this study reflect the importance of dose and route for stem cell-based treatment designed to result in retinal regeneration. FAU - Singh, Tajinder AU - Singh T AD - Department of Neurology, Post Graduate Institute of Medical Education and Research, Chandigarh, India. FAU - Prabhakar, Sudesh AU - Prabhakar S FAU - Gupta, Amod AU - Gupta A FAU - Anand, Akshay AU - Anand A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110728 PL - United States TA - Stem Cells Dev JT - Stem cells and development JID - 101197107 RN - 0 (Fluorescent Dyes) RN - 9009-81-8 (Rhodopsin) SB - IM MH - Angiography/methods MH - Animals MH - Bone Marrow Cells/*cytology/metabolism MH - Bone Marrow Transplantation/*methods MH - Cell Differentiation MH - Disease Models, Animal MH - Female MH - Fluorescent Dyes MH - Injections, Intravenous MH - Intravitreal Injections MH - Lasers/adverse effects MH - Mice MH - Mice, Inbred C57BL MH - *Regeneration MH - Retina/*injuries/metabolism/*transplantation MH - Retinal Degeneration/pathology/therapy MH - Rhodopsin/metabolism MH - Staining and Labeling EDAT- 2011/05/13 06:00 MHDA- 2012/05/23 06:00 CRDT- 2011/05/13 06:00 PHST- 2011/05/13 06:00 [entrez] PHST- 2011/05/13 06:00 [pubmed] PHST- 2012/05/23 06:00 [medline] AID - 10.1089/scd.2011.0002 [doi] PST - ppublish SO - Stem Cells Dev. 2012 Feb 10;21(3):448-54. doi: 10.1089/scd.2011.0002. Epub 2011 Jul 28.