Review

Epigenetic regulation in Autism spectrum disorder

  • Received: 08 September 2016 Accepted: 28 November 2016 Published: 09 December 2016
  • Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by an impaired social communication skill and often results in repetitive, stereotyped behavior which is observed in children during the first few years of life. Other characteristic of this disorder includes language disabilities, difficulties in sensory integration, lack of reciprocal interactions and in some cases, cognitive delays. One percentage of the general population is affected by ASD and is four times more common in boys than girls. There are hundreds of genes, which has been identified to be associated with ASD etiology. However it remains difficult to comprehend our understanding in defining the genetic architecture necessary for complete exposition of its pathophysiology. Seeing the complexity of the disease, it is important to adopt a multidisciplinary approach which should not only focus on the “genetics” of autism but also on epigenetics, transcriptomics, immune system disruption and environmental factors that could all impact the pathogenesis of the disease. As environmental factors also play a key role in regulating the trigger of ASD, the role of chromatin remodeling and DNA methylation has started to emerge. Such epigenetic modifications directly link molecular regulatory pathways and environmental factors, which might be able to explain some aspects of complex disorders like ASD. The present review will focus on the role of epigenetic regulation in defining the underlying cause for ASD

    Citation: Sraboni Chaudhury. Epigenetic regulation in Autism spectrum disorder[J]. AIMS Genetics, 2016, 3(4): 292-299. doi: 10.3934/genet.2016.4.292

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  • Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by an impaired social communication skill and often results in repetitive, stereotyped behavior which is observed in children during the first few years of life. Other characteristic of this disorder includes language disabilities, difficulties in sensory integration, lack of reciprocal interactions and in some cases, cognitive delays. One percentage of the general population is affected by ASD and is four times more common in boys than girls. There are hundreds of genes, which has been identified to be associated with ASD etiology. However it remains difficult to comprehend our understanding in defining the genetic architecture necessary for complete exposition of its pathophysiology. Seeing the complexity of the disease, it is important to adopt a multidisciplinary approach which should not only focus on the “genetics” of autism but also on epigenetics, transcriptomics, immune system disruption and environmental factors that could all impact the pathogenesis of the disease. As environmental factors also play a key role in regulating the trigger of ASD, the role of chromatin remodeling and DNA methylation has started to emerge. Such epigenetic modifications directly link molecular regulatory pathways and environmental factors, which might be able to explain some aspects of complex disorders like ASD. The present review will focus on the role of epigenetic regulation in defining the underlying cause for ASD


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