| Autor: |
James Chettle, Raymond J. Louie, Olivia Larner, Robert Best, Kevin Chen, Josephine Morris, Zinaida Dedeic, Anna Childers, R. Curtis Rogers, Barbara R. DuPont, Cindy Skinner, Sébastien Küry, Kevin Uguen, Marc Planes, Danielle Monteil, Megan Li, Aviva Eliyahu, Lior Greenbaum, Nofar Mor, Thomas Besnard, Bertrand Isidor, Benjamin Cogné, Alyssa Blesson, Anne Comi, Ingrid M. Wentzensen, Blake Vuocolo, Seema R. Lalani, Roberta Sierra, Lori Berry, Kent Carter, Stephan J. Sanders, Sarah P. Blagden |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
HGG Advances, Vol 5, Iss 4, Pp 100345- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2666-2477 |
| DOI: |
10.1016/j.xhgg.2024.100345 |
| Popis: |
Summary: Autism spectrum disorder (ASD) is a neurodevelopmental disorder (NDD) that affects approximately 4% of males and 1% of females in the United States. While causes of ASD are multi-factorial, single rare genetic variants contribute to around 20% of cases. Here, we report a case series of seven unrelated probands (6 males, 1 female) with ASD or another variable NDD phenotype attributed to de novo heterozygous loss of function or missense variants in the gene LARP1 (La ribonucleoprotein 1). LARP1 encodes an RNA-binding protein that post-transcriptionally regulates the stability and translation of thousands of mRNAs, including those regulating cellular metabolism and metabolic plasticity. Using lymphocytes collected and immortalized from an index proband who carries a truncating variant in one allele of LARP1, we demonstrated that lower cellular levels of LARP1 protein cause reduced rates of aerobic respiration and glycolysis. As expression of LARP1 increases during neurodevelopment, with higher levels in neurons and astrocytes, we propose that LARP1 haploinsufficiency contributes to ASD or related NDDs through attenuated metabolic activity in the developing fetal brain. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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