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@ARTICLE{Stenton:157727,
author = {Stenton, Sarah L and Sheremet, Natalia L and Catarino,
Claudia B and Andreeva, Natalia A and Assouline, Zahra and
Barboni, Piero and Barel, Ortal and Berutti, Riccardo and
Bychkov, Igor and Caporali, Leonardo and Capristo,
Mariantonietta and Carbonelli, Michele and Cascavilla, Maria
L and Charbel Issa, Peter and Freisinger, Peter and Gerber,
Sylvie and Ghezzi, Daniele and Graf, Elisabeth and Heidler,
Juliana and Hempel, Maja and Heon, Elise and Itkis, Yulya S
and Javasky, Elisheva and Kaplan, Josseline and Kopajtich,
Robert and Kornblum, Cornelia and Kovacs-Nagy, Reka and
Krylova, Tatiana D and Kunz, Wolfram S and La Morgia, Chiara
and Lamperti, Costanza and Ludwig, Christina and Malacarne,
Pedro F and Maresca, Alessandra and Mayr, Johannes A and
Meisterknecht, Jana and Nevinitsyna, Tatiana A and Palombo,
Flavia and Pode-Shakked, Ben and Shmelkova, Maria S and
Strom, Tim M and Tagliavini, Francesca and Tzadok, Michal
and van der Ven, Amelie T and Vignal-Clermont, Catherine and
Wagner, Matias and Zakharova, Ekaterina Y and Zhorzholadze,
Nino V and Rozet, Jean-Michel and Carelli, Valerio and
Tsygankova, Polina G and Klopstock, Thomas and Wittig, Ilka
and Prokisch, Holger},
title = {{I}mpaired complex {I} repair causes recessive {L}eber's
hereditary optic neuropathy.},
journal = {The journal of clinical investigation},
volume = {131},
number = {6},
issn = {1558-8238},
address = {Ann Arbor, Mich.},
publisher = {ASCJ},
reportid = {DZNE-2021-01184},
pages = {e138267},
year = {2021},
abstract = {Leber's hereditary optic neuropathy (LHON) is the most
frequent mitochondrial disease and was the first to be
genetically defined by a point mutation in mitochondrial DNA
(mtDNA). A molecular diagnosis is achieved in up to $95\%$
of cases, the vast majority of which are accounted for by 3
mutations within mitochondrial complex I subunit-encoding
genes in the mtDNA (mtLHON). Here, we resolve the enigma of
LHON in the absence of pathogenic mtDNA mutations. We
describe biallelic mutations in a nuclear encoded gene,
DNAJC30, in 33 unsolved patients from 29 families and
establish an autosomal recessive mode of inheritance for
LHON (arLHON), which to date has been a prime example of a
maternally inherited disorder. Remarkably, all hallmarks of
mtLHON were recapitulated, including incomplete penetrance,
male predominance, and significant idebenone responsivity.
Moreover, by tracking protein turnover in patient-derived
cell lines and a DNAJC30-knockout cellular model, we
measured reduced turnover of specific complex I N-module
subunits and a resultant impairment of complex I function.
These results demonstrate that DNAJC30 is a chaperone
protein needed for the efficient exchange of complex I
subunits exposed to reactive oxygen species and integral to
a mitochondrial complex I repair mechanism, thereby
providing the first example to our knowledge of a disease
resulting from impaired exchange of assembled respiratory
chain subunits.},
keywords = {Adolescent / Adult / Cell Line / Child, Preschool /
Electron Transport Complex I: chemistry / Electron Transport
Complex I: metabolism / Female / Gene Knockout Techniques /
Genes, Recessive / HSP40 Heat-Shock Proteins: deficiency /
HSP40 Heat-Shock Proteins: genetics / HSP40 Heat-Shock
Proteins: metabolism / Homozygote / Humans / Male / Middle
Aged / Mutation / Optic Atrophy, Hereditary, Leber: genetics
/ Optic Atrophy, Hereditary, Leber: metabolism / Pedigree /
Penetrance / Phenotype / Protein Subunits / Reactive Oxygen
Species: metabolism / Young Adult / Genetic diseases (Other)
/ Genetics (Other) / Neuroscience (Other)},
cin = {AG Höglinger 2},
ddc = {610},
cid = {I:(DE-2719)1111015},
pnm = {353 - Clinical and Health Care Research (POF4-353)},
pid = {G:(DE-HGF)POF4-353},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:33465056},
pmc = {pmc:PMC7954600},
doi = {10.1172/JCI138267},
url = {https://pub.dzne.de/record/157727},
}