Insulin-Like Growth Factor and Insulin-Like Growth Factor Receptor Expression in Human Idiopathic Autism Fusiform Gyrus Tissue.

Autism Research : Official Journal of the International Society for Autism Research
Milena CioanaMargaret Fahnestock

Abstract

Autism spectrum disorder (ASD) is believed to stem from defects in the establishment and maintenance of functional neuronal networks due to synaptic/spine dysfunction. The potent effects of IGF-1 on synaptic function, maintenance, and plasticity make it a potential target for treating ASD. This polypeptide hormone has proven to have beneficial effects in treating related developmental disorders like Rett syndrome, and its efficacy in ASD is currently being investigated in a pilot study. IGF-1 binds to its receptor (IGF-1R) in neurons and activates mitogen-activated protein kinase and PI3K/Akt signaling to produce biological effects on spine function. The PI3K/Akt pathway is dysregulated in ASD, including idiopathic autism, and is thus believed to play a role in the disorder. Despite this, no study has explored the levels of IGF-1 in the fusiform gyrus of idiopathic autism patients, an area known to be hypoactivated in ASD, and no study has examined IGF-1R in any part of the brain. The present study explored whether IGF-1 or IGF-1R levels are altered in human idiopathic autism. RNA and protein were extracted from post-mortem human fusiform gyrus tissue of normal controls (n = 20) and subjects with idiopathic autism (n = 15). qRT...Continue Reading

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Oct 21, 2020·Genes·Madiha KhalidGhazala Kaukab Raja
Jan 4, 2021·Journal of Autism and Developmental Disorders·Fulya ŞimşekMustafa Bozkurt

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