Transplantation of Derivative Retinal Organoids from Chemically Induced Pluripotent Stem Cells Restored Visual Function

Overview

Journal NPJ Regen Med

Date 2024 Dec 27

PMID 39730340

Authors

Ning Zhao

Chang-Jun Zhang

Xiao Zhang

Wen Wang

Kangxin Jin

Zi-Bing Jin

Affiliations

Soon will be listed here.

Abstract

As an emerging type of pluripotent stem cells, chemically induced pluripotent stem cells (CiPSCs) avoid the risks of genomic disintegration by exogenous DNAs from viruses or plasmids, providing a safer stem cell source. To verify CiPSCs' capacity to differentiate into retinal organoids (ROs), we induced CiPSCs from mouse embryonic fibroblasts by defined small-molecule compounds and successfully differentiated the CiPSCs into three-dimensional ROs, in which all major retinal cell types and retinal genes were in concordance with those in vivo. We transplanted retinal photoreceptors from ROs into the subretinal space of retinal degeneration mouse models and the cells could integrate into the host retina, establish synaptic connections, and significantly improve the visual functions of the murine models. This proof-of-concept study for the first time demonstrated that CiPSCs could differentiate into ROs with a full spectrum of retinal cell types, and provided new insights into chemical approach-based retinal regeneration for degenerative diseases.

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