7q11.23 deletion and duplication

Area of Science:

• Genetics and Genomics
• Neuroscience
• Developmental Biology

Background:

• Copy number variation (CNV) at the 7q11.23 chromosomal region is linked to a spectrum of neurodevelopmental disorders.
• These disorders present with overlapping and contrasting phenotypic features, impacting cognitive abilities, psychopathology, and behavior.
• Understanding the molecular basis of these phenotypes is crucial for developing targeted interventions.

Purpose of the Study:

• To investigate the molecular underpinnings of cognitive disabilities and behavioral alterations associated with 7q11.23 CNV.
• To identify candidate genes within the 7q11.23 region contributing to the observed phenotypes.
• To explore potential therapeutic strategies for correcting gene expression and ameliorating associated pathophysiology.

Main Methods:

• Analysis of individuals with atypical 7q11.23 CNVs to narrow down candidate genes.
• Generation and study of mouse models to elucidate gene function in vivo.
• Application of high-throughput genomics techniques, including transcriptome and methylome interrogation.
• Initial development of strategies to modulate gene transcription levels.

Main Results:

• Identification of specific genes within the 7q11.23 region associated with distinct phenotypic outcomes.
• Mouse models have provided valuable insights into the functional roles of these genes.
• Genomic analyses have revealed molecular signatures associated with the 7q11.23 CNV.
• Preliminary correction strategies show promise in addressing gene transcription and phenotypic abnormalities.

Conclusions:

• The 7q11.23 CNV serves as a valuable model for understanding the genetic basis of complex human cognitive and social behaviors.
• Continued research integrating genomic data, model systems, and therapeutic interventions holds promise for advancing treatment strategies.
• Targeting gene transcription levels offers a potential avenue for correcting pathophysiology and improving cognitive and behavioral phenotypes.