Editing GWAS: experimental approaches to dissect and exploit disease-associated genetic variation

Area of Science:

• Genetics and Genomics
• Molecular Biology
• Translational Medicine

Background:

• Genome-wide association studies (GWAS) have identified numerous genetic variants associated with human diseases and traits.
• A major challenge is elucidating the functional mechanisms of these variants, particularly noncoding ones, in disease etiology.
• Translating GWAS findings into clinical applications for disease prevention and treatment remains a significant hurdle.

Purpose of the Study:

• To review emerging experimental approaches for functional studies of causal genetic variants identified by GWAS.
• To discuss translational advances and therapeutic opportunities arising from GWAS findings.
• To highlight the role of genome editing technologies in understanding GWAS locus mechanisms.

Main Methods:

• Review of current literature on functional genomics and GWAS.
• Discussion of experimental techniques, including genome editing, for variant interrogation.
• Analysis of challenges and considerations in experimental design and interpretation.

Main Results:

• Emerging experimental approaches, including genome editing, are crucial for functional studies of GWAS variants.
• Proof-of-principle examples demonstrate the utility of genome editing in modifying genomic sequences for functional validation.
• Understanding causal variants opens avenues for novel therapeutic strategies.

Conclusions:

• Functional genetics is advancing our understanding of GWAS findings.
• Therapeutic genome editing based on GWAS discoveries is becoming increasingly feasible.
• Bridging the gap between genetic discoveries and clinical applications is essential for disease prevention and treatment.