Generation of iPSCs from identical twin, one affected by LHON and one unaffected, both carrying a combination of two mitochondrial variants: m.14484 T>C and m.10680G>A

Summary

Leber hereditary optic neuropathy (LHON) is one of the most common mitochondrial illness, causing retinal ganglion cell degeneration and central vision loss. It stems from point mutations in mitochondrial DNA (mtDNA), with key mutations being m.3460G > A, m.11778G > A, and m.14484 T > C. Fibroblasts from identical twins, sharing m.14484 T > C and m.10680G > A variants each with 70 % heteroplasmy, were used to generate iPSC lines. Remarkably, one twin, a LHON patient, displayed symptoms, while the other, a carrier, remained asymptomatic. These iPSCs offer a valuable tool for studying factors influencing disease penetrance and unravelling the role of m.10680G > A, which is still debated. Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.

Authors Peron C, Cavaliere A, Fasano C, Iannielli A, Spagnolo M, Legati A, Nicol Colombo M, Rizzo A, Sciacca FL, Carelli V, Broccoli V, Lamperti C, Tiranti V
Journal Stem cell research
Publication Date 2024 Jun;77:103406
PubMed 38552355
DOI 10.1016/j.scr.2024.103406

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