Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 24, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/ijms24065951
Keywords
coenzyme A; PANK2; PPCS; PPCDC; COASY; neurodegeneration; NBIA; cardiomyopathy; iron accumulation
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Coenzyme A (CoA) is an essential cofactor that plays a vital role in numerous enzymatic reactions and cellular processes. Four rare human inborn errors of CoA biosynthesis have been described, all stemming from variants in genes encoding enzymes involved in the same metabolic process. This review provides an overview of CoA metabolism and functions, and summarizes the current knowledge on disorders associated with its biosynthesis, including proposed pathomechanisms and potential therapeutic approaches.
Coenzyme A (CoA) is a vital and ubiquitous cofactor required in a vast number of enzymatic reactions and cellular processes. To date, four rare human inborn errors of CoA biosynthesis have been described. These disorders have distinct symptoms, although all stem from variants in genes that encode enzymes involved in the same metabolic process. The first and last enzymes catalyzing the CoA biosynthetic pathway are associated with two neurological conditions, namely pantothenate kinase-associated neurodegeneration (PKAN) and COASY protein-associated neurodegeneration (CoPAN), which belong to the heterogeneous group of neurodegenerations with brain iron accumulation (NBIA), while the second and third enzymes are linked to a rapidly fatal dilated cardiomyopathy. There is still limited information about the pathogenesis of these diseases, and the knowledge gaps need to be resolved in order to develop potential therapeutic approaches. This review aims to provide a summary of CoA metabolism and functions, and a comprehensive overview of what is currently known about disorders associated with its biosynthesis, including available preclinical models, proposed pathomechanisms, and potential therapeutic approaches.
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