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Functional Genomics

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Elucidating How Genotype Lease to Phenotype in Cardiometabolic and Renal Disease

 

Unbiased human-based discovery efforts, such as genome-wide and exome-wide association studies, have identified many genetic loci for complex, disease-relevant traits. These genetics studies have provided invaluable data implicating novel loci in disease development and progression, but require functional follow-up to elucidate the mechanistic underpinnings driving the associated findings. A focus of the lab is to interrogate, through experimental wet-bench approaches, the functional significance of novel loci for blood lipids levels and measurements of renal function in the hopes of gaining new insights into pathways relevant to cardiometabolic and renal disease, respectively.

In particular, we are studying the role of A1CF, a gene encoding the RNA-binding protein APOBEC1 complementation factor and recently implicated as a locus for (1) elevated plasma triglycerides (Liu et al., Nature Genetics 2017), (2) estimated glomerular filtration fraction in non-diabetic individuals (Pattaro et al., Nature Communications 2016) and (3) serum urate (Kottgen et al., Nature Genetics 2013). We have already discovered that A1CF's actions extend beyond its canonical role of facilitating the editing of APOB mRNA, and we are currently integrating studies using animal and human cellular models to investigate how A1CF contributes to these associated traits.