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Related Experiment Video

Updated: Apr 30, 2026

Dynamic Clamp Methods to Investigate Impaired Neuronal Excitability Associated with Autism

Dynamic Clamp Methods to Investigate Impaired Neuronal Excitability Associated with Autism

Published on: October 17, 2025

Chromatin regulators, phenotypic robustness, and autism risk.

Reut Suliman¹, Eyal Ben-David¹, Sagiv Shifman¹

¹Department of Genetics, The Institute of Life Sciences, The Hebrew University of Jerusalem Jerusalem, Israel.

Frontiers in Genetics

|May 1, 2014

Summary

This summary is machine-generated.

Loss of robustness in the developing brain may explain autism spectrum disorder (ASD) causes. Cryptic genetic variations released by disrupted gene regulation could underlie ASD's complex genetic heterogeneity.

Keywords:

autism spectrum disorder chromatin regulators common genetic variants de novo mutation phenotypic robustness

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Rapid Detection of Neurodevelopmental Phenotypes in Human Neural Precursor Cells NPCs

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Published on: March 2, 2018

Area of Science:

Neuroscience
Genetics
Developmental Biology

Background:

Autism spectrum disorder (ASD) has a strong genetic basis but remains etiologically mysterious.
Genetic heterogeneity in ASD is high, with de novo mutations in numerous genes implicated.
Many implicated genes are involved in prenatal brain transcription regulation.

Purpose of the Study:

To propose a unifying hypothesis for the genetic causes of ASD.
To explain how mutations in diverse genes contribute to ASD.
To reconcile observed patterns of de novo mutations and ASD prevalence in males and females.

Main Methods:

Hypothesizing a role for "loss of robustness" in ASD etiology.
Proposing that "capacitors" in the developing brain, when disrupted, release cryptic genetic variation.
Connecting reduced robustness to ASD's variable expressivity and incomplete penetrance.

Main Results:

Loss of phenotypic robustness, caused by mutations disrupting developmental capacitors, may lead to ASD.
This model explains how mutations in many different genes can converge on ASD.
It also accounts for the higher rate/severity of de novo mutations in girls, despite ASD being more common in boys.

Conclusions:

Reduced robustness is a potential mechanism underlying ASD pathogenesis.
The hypothesis aligns with observed genetic complexity, variable expressivity, and sex differences in ASD.
Further research into developmental robustness and cryptic genetic variation is warranted.