Biallelic rescue of CTG18.1 in two Fuchs endothelial corneal dystrophy-derived iPSC lines (SCTCi047-A-2, SCTCi046-A-2) following a two-step gene editing strategy
Summary
Fuchs endothelial corneal dystrophy (FECD) is an age-related condition distinguished by the degeneration of the corneal endothelium. An intronic CTG18.1 repeat in the transcription factor 4 (TCF4) gene has been associated with a 78-fold increased risk of developing the disease when at least one copy of the CTG18.1 expands above 50 repeats. Employing patient-derived material, we applied a dual CRISPR/Cas9-mediated editing approach to rescue the expansion. Combining non-homologous end-joining (NHEJ) and homologous direct repair (HDR) events, we generated two FECD-derived +/+(CTG)8 induced pluripotent stem cell (iPSC) lines, which were then successfully characterized, providing relevant isogenic controls for disease-modelling purposes. Copyright © 2026 The Authors. Published by Elsevier B.V. All rights reserved.
| Authors | Landi E, van Beusekom E, Ben-Dor S, Albert S, Dickman MM, LaPointe VLS, van Bokhoven H |
|---|---|
| Journal | Stem cell research |
| Publication Date | 2026 Jun 13;95:104032 |
| PubMed | 42314573 |
| DOI | 10.1016/j.scr.2026.104032 |