期刊
BIOMEDICINES
卷 9, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/biomedicines9080989
关键词
MMDS; Fe-S proteins; NFU1; IBA57; BOLA3; ISCA1; ISCA2
资金
- EU COST Action FeSBioNet [CA15133]
Mitochondrial proteins containing Fe-S clusters are crucial for cellular pathways, and mutations in certain genes can lead to multiple mitochondrial dysfunction syndromes. Patients with MMDS typically present with severe leukoencephalopathy, and diagnosis often involves testing for elevated lactate, pyruvate, and glycine levels, as well as genetic analysis.
Mitochondrial proteins carrying iron-sulfur (Fe-S) clusters are involved in essential cellular pathways such as oxidative phosphorylation, lipoic acid synthesis, and iron metabolism. NFU1, BOLA3, IBA57, ISCA2, and ISCA1 are involved in the last steps of the maturation of mitochondrial [4Fe-4S]-containing proteins. Since 2011, mutations in their genes leading to five multiple mitochondrial dysfunction syndromes (MMDS types 1 to 5) were reported. The aim of this systematic review is to describe all reported MMDS-patients. Their clinical, biological, and radiological data and associated genotype will be compared to each other. Despite certain specific clinical elements such as pulmonary hypertension or dilated cardiomyopathy in MMDS type 1 or 2, respectively, nearly all of the patients with MMDS presented with severe and early onset leukoencephalopathy. Diagnosis could be suggested by high lactate, pyruvate, and glycine levels in body fluids. Genetic analysis including large gene panels (Next Generation Sequencing) or whole exome sequencing is needed to confirm diagnosis.
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