Cited by 176Genetics and Neurodevelopmental DisordersAutism Spectrum Disorder ResearchNeuroscience and Neuropharmacology Research

Insulin-like growth factor-1 rescues synaptic and motor deficits in a mouse model of autism and developmental delay

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Bozdagi, Ozlem, Tavassoli, Teresa, Buxbaum, Joseph D·2013·Molecular Autism

Abstract

BACKGROUND: Haploinsufficiency of SHANK3, due to either hemizygous gene deletion (termed 22q13 deletion syndrome or Phelan-McDermid syndrome) or to gene mutation, accounts for about 0.5% of the cases of autism spectrum disorder (ASD) and/or developmental delay, and there is evidence for a wider role for SHANK3 and glutamate signaling abnormalities in ASD and related conditions. Therapeutic approaches that reverse deficits in SHANK3-haploinsufficiency may therefore be broadly beneficial in ASD and in developmental delay. FINDINGS: We observed that daily intraperitoneal injections of human insulin-like growth factor 1 (IGF-1) over a 2-week period reversed deficits in hippocampal α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) signaling, long-term potentiation (LTP), and motor performance that we had previously reported in Shank3-deficient mice. Positive effects were observed with an IGF-1 peptide derivative as well. CONCLUSIONS: We observed significant beneficial effects of IGF-1 in a mouse model of ASD and of developmental delay. Studies in mouse and human neuronal models of Rett syndrome also show benefits with IGF-1, raising the possibility that this compound may have benefits broadly in ASD and related conditions, even with differing molecular etiology. Given the extensive safety data for IGF-1 in children with short stature due to primary IGF-1 deficiency, IGF-1 is an attractive candidate for controlled clinical trials in SHANK3-deficiency and in ASD.

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Authors
Bozdagi, O., Tavassoli, T., & Buxbaum, J. D.
Affiliations
Icahn School of Medicine at Mount Sinai (US)
Corresponding author
Buxbaum, Joseph D
Venue
Molecular Autism
Published
2013-04-27
Volume
4
Issue
1
Pages
9-9
ISSN
2040-2392 (ISSN-L)
OpenAlex
W2135432133
Cited by
176
References
15
Citations by year
2026: 4 · 2025: 11 · 2024: 7 · 2023: 11 · 2022: 19 · 2021: 22 · 2020: 9 · 2019: 6 · 2018: 10 · 2017: 18 · 2016: 26 · 2015: 17 · 2014: 15 · 2013: 1
FWCI
13.05
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Molecular Autism (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Simons Foundation
  • National Institute of Mental Health (R01MH093725)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
insulin-like growth factor I, SHANK3, autism spectrum disorder, developmental delay, 22q13 deletion syndrome, Phelan-McDermid syndrome, haploinsufficiency, long-term potentiation, synaptic function, motor impairment, Rett syndrome, glutamate signaling, therapeutic rescue

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