Rediscovering tandem repeat variation in schizophrenia: challenges and opportunities

Area of Science:

• Genomics
• Human Genetics
• Molecular Biology

Background:

• Tandem repeats (TRs) comprise over 3% of the genome and exhibit high polymorphism.
• TRs have mutation rates significantly higher than SNPs and indels, suggesting a role in phenotypic variation.
• TR expansions cause over 50 disorders, and common TR variations are linked to complex diseases and gene regulation.

Purpose of the Study:

• To review the significance of tandem repeat variation in disease risk.
• To elucidate the potential association of TRs with schizophrenia.
• To provide an overview of next-generation sequencing methods for TR identification.

Main Methods:

• Review of existing literature on tandem repeat variation and disease association.
• Discussion of next-generation sequencing technologies applicable to TR analysis.
• Identification of methodological challenges in TR genome-wide studies.

Main Results:

• TRs are a significant source of genetic variation with implications for complex diseases.
• The contribution of TRs to schizophrenia has been largely understudied.
• Next-generation sequencing offers powerful tools for TR identification and analysis.

Conclusions:

• Tandem repeat variation warrants further investigation for its role in schizophrenia.
• Advancements in sequencing technology are crucial for overcoming challenges in TR analysis.
• Understanding TRs is essential for a comprehensive view of genetic contributions to complex diseases.