Pantothenate and L-Carnitine Supplementation Improves Pathological Alterations in Cellular Models of KAT6A Syndrome.
Manuel Munuera-CabezaMónica Álvarez-CórdobaJuan M Suárez-RiveroSuleva Povea-CabelloIrene Villalón-GarcíaMarta Talaverón-ReyAlejandra Suárez-CarrilloDiana Reche-LópezPaula Cilleros-HolgadoRocío Piñero-PérezJosé Antonio Sánchez-AlcázarPublished in: Genes (2022)
Mutations in several genes involved in the epigenetic regulation of gene expression have been considered risk alterations to different intellectual disability (ID) syndromes associated with features of autism spectrum disorder (ASD). Among them are the pathogenic variants of the lysine-acetyltransferase 6A ( KAT6A ) gene, which causes KAT6A syndrome. The KAT6A enzyme participates in a wide range of critical cellular functions, such as chromatin remodeling, gene expression, protein synthesis, cell metabolism, and replication. In this manuscript, we examined the pathophysiological alterations in fibroblasts derived from three patients harboring KAT6A mutations. We addressed survival in a stress medium, histone acetylation, protein expression patterns, and transcriptome analysis, as well as cell bioenergetics. In addition, we evaluated the therapeutic effectiveness of epigenetic modulators and mitochondrial boosting agents, such as pantothenate and L-carnitine, in correcting the mutant phenotype. Pantothenate and L-carnitine treatment increased histone acetylation and partially corrected protein and transcriptomic expression patterns in mutant KAT6A cells. Furthermore, the cell bioenergetics of mutant cells was significantly improved. Our results suggest that pantothenate and L-carnitine can significantly improve the mutant phenotype in cellular models of KAT6A syndrome.
Keyphrases
- gene expression
- autism spectrum disorder
- intellectual disability
- dna methylation
- single cell
- induced apoptosis
- cell therapy
- genome wide
- case report
- attention deficit hyperactivity disorder
- cell cycle arrest
- copy number
- oxidative stress
- end stage renal disease
- newly diagnosed
- randomized controlled trial
- endoplasmic reticulum stress
- poor prognosis
- stem cells
- patient reported outcomes
- long non coding rna
- cell death
- working memory
- prognostic factors
- protein protein
- replacement therapy
- free survival