PMID- 35377941 OWN - NLM STAT- MEDLINE DCOM- 20220406 LR - 20220614 IS - 2164-2591 (Electronic) IS - 2164-2591 (Linking) VI - 11 IP - 4 DP - 2022 Apr 1 TI - Derivation and Characterization of Murine and Amphibian Muller Glia Cell Lines. PG - 4 LID - 10.1167/tvst.11.4.4 [doi] LID - 4 AB - PURPOSE: Muller glia (MG) in the retina of Xenopus laevis (African clawed frog) reprogram to a transiently amplifying retinal progenitor state after an injury. These progenitors then give rise to new retinal neurons. In contrast, mammalian MG have a restricted neurogenic capacity and undergo reactive gliosis after injury. This study sought to establish MG cell lines from the regeneration-competent frog and the regeneration-deficient mouse. METHODS: MG were isolated from postnatal day 5 GLAST-CreERT; Rbfl/fl mice and from adult (3-5 years post-metamorphic) X laevis. Serial adherent subculture resulted in spontaneously immortalized cells and the establishment of two MG cell lines: murine retinal glia 17 (RG17) and Xenopus glia 69 (XG69). They were characterized for MG gene and protein expression by qPCR, immunostaining, and Western blot. Purinergic signaling was assessed with calcium imaging. Pharmacological perturbations with 2'-3'-O-(4-benzoylbenzoyl) adenosine 5'-triphosphate (BzATP) and KN-62 were performed on RG17 cells. RESULTS: RG17 and XG69 cells express several MG markers and retain purinergic signaling. Pharmacological perturbations of intracellular calcium responses with BzATP and KN-62 suggest that the ionotropic purinergic receptor P2X7 is present and functional in RG17 cells. Stimulation of XG69 cells with adenosine triphosphate-induced calcium responses in a dose-dependent manner. CONCLUSIONS: We report the characterization of RG17 and XG69, two novel MG cell lines from species with significantly disparate retinal regenerative capabilities. TRANSLATIONAL RELEVANCE: RG17 and XG69 cell line models will aid comparative studies between species endowed with varied regenerative capacity and will facilitate the development of new cell-based strategies for treating retinal degenerative diseases. FAU - Gallo, Ryan A AU - Gallo RA AD - Dr. Nasser Ibrahim Al-Rashid Orbital Vision Research Center, Bascom Palmer Eye Institute, Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL, USA. AD - Medical Scientist Training Program, University of Miami Miller School of Medicine, Miami, FL, USA. FAU - Qureshi, Farhan AU - Qureshi F AD - Medical Scientist Training Program, University of Miami Miller School of Medicine, Miami, FL, USA. FAU - Strong, Thomas A AU - Strong TA AD - Dr. Nasser Ibrahim Al-Rashid Orbital Vision Research Center, Bascom Palmer Eye Institute, Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL, USA. FAU - Lang, Steven H AU - Lang SH AD - Dr. Nasser Ibrahim Al-Rashid Orbital Vision Research Center, Bascom Palmer Eye Institute, Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL, USA. FAU - Pino, Kevin A AU - Pino KA AD - Dr. Nasser Ibrahim Al-Rashid Orbital Vision Research Center, Bascom Palmer Eye Institute, Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL, USA. FAU - Dvoriantchikova, Galina AU - Dvoriantchikova G AD - Dr. Nasser Ibrahim Al-Rashid Orbital Vision Research Center, Bascom Palmer Eye Institute, Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL, USA. FAU - Pelaez, Daniel AU - Pelaez D AD - Dr. Nasser Ibrahim Al-Rashid Orbital Vision Research Center, Bascom Palmer Eye Institute, Department of Ophthalmology, University of Miami Miller School of Medicine, Miami, FL, USA. AD - Department of Cell Biology, University of Miami Miller School of Medicine, Miami, FL, USA. LA - eng GR - P30 EY014801/EY/NEI NIH HHS/United States GR - T32 GM112601/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Transl Vis Sci Technol JT - Translational vision science & technology JID - 101595919 SB - IM MH - Animals MH - *Ependymoglial Cells/metabolism MH - Mammals MH - Mice MH - Neuroglia/metabolism MH - Retina MH - *Retinal Neurons MH - Xenopus laevis PMC - PMC8994200 COIS- Disclosure: R.A. Gallo, None; F. Qureshi, None; T.A. Strong, None; S.H. Lang, None; K.A. Pino, None; G. Dvoriantchikova, None; D. Pelaez, None EDAT- 2022/04/05 06:00 MHDA- 2022/04/07 06:00 PMCR- 2022/04/04 CRDT- 2022/04/04 17:11 PHST- 2022/04/04 17:11 [entrez] PHST- 2022/04/05 06:00 [pubmed] PHST- 2022/04/07 06:00 [medline] PHST- 2022/04/04 00:00 [pmc-release] AID - 2778724 [pii] AID - TVST-21-4100 [pii] AID - 10.1167/tvst.11.4.4 [doi] PST - ppublish SO - Transl Vis Sci Technol. 2022 Apr 1;11(4):4. doi: 10.1167/tvst.11.4.4.