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J Vis Exp. 2018 Sep 6;(139). doi: 10.3791/58216.

Engineering Transplantation-suitable Retinal Pigment Epithelium Tissue Derived from Human Embryonic Stem Cells.

Author information

1
U861, I-Stem, Association Française contre les Myopathies (AFM), Institut National de la Santé et de la Recherche Médicale (INSERM); U861, I-Stem, Association Française contre les Myopathies (AFM), Université Evry Val-d'Essonne (UEVE); I-Stem, Association Française contre les Myopathies (AFM), Centre pour L'Etude des Cellules Souches (CECS).
2
Banque de tissus humain, Hôpital Saint Louis, Assistance Publique - Hôpitaux de Paris (AP-HP).
3
Sorbonne Université, INSERM, CNRS, Institut de la Vision, F-75012.
4
U861, I-Stem, Association Française contre les Myopathies (AFM), Institut National de la Santé et de la Recherche Médicale (INSERM); U861, I-Stem, Association Française contre les Myopathies (AFM), Université Evry Val-d'Essonne (UEVE); cmonville@istem.fr.

Abstract

Several pathological conditions of the eye affect the functionality and/or the survival of the retinal pigment epithelium (RPE). These include some forms of retinitis pigmentosa (RP) and age-related macular degeneration (AMD). Cell therapy is one of the most promising therapeutic strategies proposed to cure these diseases, with already encouraging preliminary results in humans. However, the method of preparation of the graft has a significant impact on its functional outcomes in vivo. Indeed, RPE cells grafted as a cell suspension are less functional than the same cells transplanted as a retinal tissue. Herein, we describe a simple and reproducible method to engineer RPE tissue and its preparation for an in vivo implantation. RPE cells derived from human pluripotent stem cells are seeded on a biological support, the human amniotic membrane (hAM). Compared to artificial scaffolds, this support has the advantage of having a basement membrane that is close to the Bruch's membrane where endogenous RPE cells are attached. However, its manipulation is not easy, and we developed several strategies for its proper culturing and preparation for grafting in vivo.

PMID:
30247475
PMCID:
PMC6235098
[Available on 2020-09-06]
DOI:
10.3791/58216
[Indexed for MEDLINE]

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