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Updated: Sep 18, 2025

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Detection of Copy Number Alterations Using Single Cell Sequencing
Published on: February 17, 2017
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The Use of Single-Cell and Spatial Omics to Study Copy Number Variants
Susmita Malwade1, Andres Ingason2, Konstantin Khodosevich3
1Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden.
Biological Psychiatry
|June 22, 2025
Summary
Copy number variants (CNVs) can cause psychiatric disorders by altering gene copies. New single-cell and spatial omics technologies help identify key genes within CNVs for understanding brain dysfunction.
Area of Science:
- Genomics
- Neuroscience
- Bioinformatics
Background:
- Copy number variants (CNVs) are genomic rearrangements affecting gene dosage and linked to psychiatric disorders.
- Identifying specific causative genes within CNVs and their molecular mechanisms for brain dysfunction is challenging.
- Traditional methods for studying CNV gene function are laborious and time-consuming.
Purpose of the Study:
- To review advancements in single-cell and spatial omics technologies.
- To propose a strategy for applying these omics approaches to CNV research.
- To facilitate genotype-to-phenotype studies in the context of CNVs and neuropsychiatric disorders.
Main Methods:
- Review of current single-cell and spatial omics technologies.
- Discussion of their application in analyzing high-resolution transcriptional data.
- Proposal of a strategic framework for integrating omics data in CNV research.
Main Results:
- Single-cell and spatial omics provide high-resolution transcriptional data in space and time.
- These technologies can predict genes within CNVs most likely to drive a phenotype.
- This enables more efficient identification of genotype-phenotype relationships.
Conclusions:
- Advancements in single-cell and spatial omics offer powerful tools for CNV research.
- These technologies can overcome limitations of traditional methods in identifying disease-driving genes.
- Implementing omics strategies will accelerate understanding of molecular mechanisms underlying CNV-associated brain dysfunction.
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