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Heckmann, K.* ; Iuso, A. ; Reunert, J.* ; Grüneberg, M.* ; Seelhöfer, A.* ; Rust, S.* ; Fiermonte, G.* ; Paradies, E.* ; Piazzolla, C.* ; Mannil, M.* ; Marquardt, T.*

Expanding the genetic and clinical spectrum of SLC25A42-associated disorders and testing of pantothenic acid to improve CoA level in vitro.

JIMD Rep. 65, 417-425 (2024)
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SLC25A42 encodes the mitochondrial coenzyme A (CoA) transporter localized at the inner mitochondrial membrane. SLC25A42 deficiency leads to a congenital disease with a heterogeneous clinical presentation, including myopathy, developmental delay, lactic acidosis, and encephalopathy. Twenty-one patients have been described so far. In the current study, we report on the identification of new biallelic variants in SLC25A42 in three siblings. Patients presented with symmetrical T2 hyperintensity of the putamen with minor volume depression at the brain MRI, elevated lactate, reduced oxygen consumption rates in muscle and fibroblasts, and reduced CoA levels in fibroblasts. Administration of pantothenic acid led to clinical stabilization and increased CoA levels in fibroblasts, thus confirming a role for SLC25A42 in energy metabolism and CoA homeostasis.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Slc25a42 ; Cellular Coa ; Mitochondrial Coenzyme Transporter ; Mitochondrial Respiration ; Pantothenic Acid
ISSN (print) / ISBN 2192-8304
Journal JIMD Reports
Quellenangaben Volume: 65, Issue: 6, Pages: 417-425 Article Number: , Supplement: ,
Publisher Springer
Non-patent literature Publications
Reviewing status Peer reviewed