Related Experiment Video
Updated: May 11, 2026
08:44
Dynamic Clamp Methods to Investigate Impaired Neuronal Excitability Associated with Autism
Published on: October 17, 2025
Patterning of regional gene expression in autism: new complexity
Matthew R Ginsberg1, Robert A Rubin, Marvin R Natowicz
1Cleveland Clinic Lerner College of Medicine, Cleveland Clinic, Cleveland, OH, USA.
Scientific Reports
|May 14, 2013
Summary
This study investigated brain gene expression in autism. Unlike frontal and temporal regions, autism did not show reduced regional specialization in occipital and cerebellar cortices.
Area of Science:
- Neuroscience
- Genetics
- Developmental Biology
Background:
- Autism Spectrum Disorder (ASD) is a complex neurodevelopmental condition with varied proposed causes.
- Previous studies indicated reduced gene expression differences between frontal and temporal cortices in autistic brains.
- It remains unclear if this "regional de-differentiation" is present in other brain areas in ASD.
Purpose of the Study:
- To investigate gene expression patterns in Brodmann area 19 (occipital cortex) and cerebellar cortex in autistic brains.
- To determine if regional specialization is attenuated in these areas, similar to findings in the frontal and temporal cortices.
- To contribute to understanding the neurobiological heterogeneity of autism.
Main Methods:
- Utilized high-resolution, genome-wide RNA expression microarrays.
- Analyzed gene expression data from carefully selected autistic and control brain specimens.
- Focused analysis on occipital cortex (Brodmann area 19) and cerebellar cortex.
Main Results:
- Gene expression data did not reveal an attenuation of regional specialization between the occipital and cerebellar cortices in autistic brains.
- Findings contrast with previous observations of reduced regional specialization in frontal and temporal cortices.
- Suggests that the observed gene expression pattern may not be a universal feature across all brain regions in autism.
Conclusions:
- The attenuation of regional gene expression specialization observed in frontal and temporal cortices may not extend to the occipital and cerebellar cortices in autism.
- Highlights the potential regional specificity of molecular alterations in the brain in autism spectrum disorder.
- Further research is needed to elucidate the diverse pathophysiological processes underlying autism.
Related Concept Videos
01:19Autism Spectrum Disorder
Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
01:33Pleiotropy
Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
02:24Regulation of Expression Occurs at Multiple Steps
Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence.
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
02:24Regulation of Expression Occurs at Multiple Steps
Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence.
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
01:23Regulation of Expression at Multiple Steps
The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the addition of a...