Cited by 195Genetics and Neurodevelopmental DisordersAutism Spectrum Disorder ResearchGenomic variations and chromosomal abnormalities

Mutations in the calcium-related gene IL1RAPL1 are associated with autism

Piton, A., Michaud, J. L., Peng, H., Aradhya, S., Gauthier, J., Mottron, L., Champagne, N., Lafreniere, R. G. +12 more·2008·Human Molecular Genetics

Abstract

In a systematic sequencing screen of synaptic genes on the X chromosome, we have identified an autistic female without mental retardation (MR) who carries a de novo frameshift Ile367SerfsX6 mutation in Interleukin-1 Receptor Accessory Protein-Like 1 (IL1RAPL1), a gene implicated in calcium-regulated vesicle release and dendrite differentiation. We showed that the function of the resulting truncated IL1RAPL1 protein is severely altered in hippocampal neurons, by measuring its effect on neurite outgrowth activity. We also sequenced the coding region of the close related member IL1RAPL2 and of NCS-1/FREQ, which physically interacts with IL1RAPL1, in a cohort of subjects with autism. The screening failed to identify non-synonymous variant in IL1RAPL2, whereas a rare missense (R102Q) in NCS-1/FREQ was identified in one autistic patient. Furthermore, we identified by comparative genomic hybridization a large intragenic deletion of exons 3-7 of IL1RAPL1 in three brothers with autism and/or MR. This deletion causes a frameshift and the introduction of a premature stop codon, Ala28GlufsX15, at the very beginning of the protein. All together, our results indicate that mutations in IL1RAPL1 cause a spectrum of neurological impairments ranging from MR to high functioning autism.

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  • There is up to a 50% increase in the odds of an ASD diagnosis among children who have a parent who has had an autoimmune disorder.

    “Estimates indicate that there is up to a 50% increase in the odds of an ASD diagnosis among children who have a parent who has had an autoimmune disorder48,63.”

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  1. [14]14. Gambino, F., Pavlowsky, A., Begle, A., Dupont, J.L., Bahi, N., Courjaret, R., Gardette, R., Hadjkacem, H., Skala, H., Poulain, B. et al. (2007) IL1-receptor accessory protein-like 1 (IL1RAPL1), a protein involved in cognitive functions, regulates N-type Ca2 þ -channelandneurite elongation. Proc. Natl. Acad. Sci. USA , 104 , 9063-9068.

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Authors
Piton, A., Michaud, J. L., Peng, H., Aradhya, S., Gauthier, J., Mottron, L., Champagne, N., Lafreniere, R. G., Hamdan, F. F., S2D team, Joober, R., Fombonne, E., Marineau, C., Cossette, P., Dube, M.-P., Haghighi, P., Drapeau, P., Barker, P. A., Carbonetto, S., & Rouleau, G. A.
Affiliations
  • Centre Hospitalier de l’Université de Montréal (CA)
  • CHU Sainte-Justine Research Center (CA)
  • Montreal General Hospital (CA)
  • Hôpital Rivière-des-Prairies (CA)
  • Université de Montréal (CA)
  • Douglas Mental Health University Institute (CA)
  • Montreal Children's Hospital (CA)
  • Montreal Heart Institute (CA)
  • McGill University (CA)
  • Montreal Neurological Institute and Hospital (CA)
Corresponding author
Rouleau, G. A.
Venue
Human Molecular Genetics
Published
2008-09-04
Volume
17
Issue
24
Pages
3965-3974
ISSN
  • 0964-6906 (ISSN-L)
  • 1460-2083
OpenAlex
W2138625258
Cited by
195
References
32
Citations by year
2026: 4 · 2025: 4 · 2024: 5 · 2023: 9 · 2022: 10 · 2021: 4 · 2020: 5 · 2019: 8 · 2018: 11 · 2017: 7 · 2016: 6 · 2015: 18 · 2014: 19 · 2013: 20 · 2012: 10
FWCI
10.47
Type
journal article
Language
en
Open access
closed
Locations
  • Human Molecular Genetics (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
Keywords
IL1RAPL1, autism spectrum disorder, de novo frameshift mutation, intragenic deletion, X chromosome, synaptic genes, neurite outgrowth, hippocampal neurons, intellectual disability, missense mutations
MeSH terms
Animals, Autistic Disorder, Base Sequence, Calcium, Cell Differentiation, Cell Line, Child, Female, Genetic Carrier Screening, Hippocampus, Humans, Male, Intellectual Disability, Pedigree, Frameshift Mutation, Neurites, Sequence Deletion, Codon, Nonsense, Asperger Syndrome, Rats, Interleukin-1 Receptor Accessory Protein

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