Abstract
AbstractPurpose Aquaporin‐1 (AQP1) is involved in cell migration and proliferation. This study aims to investigate AQP1 expression in membranes from proliferative vitreoretinopathy (PVR) and epiretinal membranes (ERM)Methods 20 Membranes PVR and ERM were collected following eye surgery from 20 eyes from 20 patients. AQP1 mRNA and protein expression were determined by RT‐qPCR and immunofluorescence in both PVR and ERMResults AQP1 mRNA and protein were expressed in both PVR and ERM as shown by both RT‐qPCR and immunofluorescence. Moreover, AQP1 protein expression was heterogeneous among and between PVR and ERM, and was highly colocalized with alpha‐smooth muscle actin (SMA or Acta2) and slightly colocalized with glial fibrillary acidic protein (GFAP).Conclusion AQP1 mRNA and protein were expressed in membranes from PVR and in ERM. Due to the absence of SMA and GFAP colocalization, it is likely that AQP1 is expressed by at least two distinct cells types. AQP1 might play a role in cell migration and proliferation occurring during the formation of PVR and ERM, and could represent a new therapeutic target
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