Helen Willsey, PhD

Research Description

The Willsey Lab uses the powerful Xenopus tropicalis (diploid frog) model to translate success in psychiatric disorder genetics into actionable mechanisms of risk and resilience. Our work to date has focused on high-confidence, large-effect risk genes for Autism Spectrum Disorders (ASD), where we have identified a convergent phenotype during forebrain neurogenesis. Specifically, we created half-mutant animals (divided by the midline) by CRISPR/Cas9 targeted injections and observed defects in neural progenitor maturation for the top 10 ASD risk genes. By drug screening, we identified estrogen signaling as a potential resilience factor for multiple different genes. Going forward, we are focusing on how these risk genes affect neurogenesis, how estrogen signaling interacts, and expanding this experimental platform to begin work on other disorders with large-effect risk genes, including Schizophrenia, Tourette Disorder, ADHD, and OCD.

Current Projects
a. Role of autism spectrum disorder risk genes in forebrain neurogenesis
b. Role of estrogen signaling in early brain development by sex
c. Role of schizophrenia risk genes in brain development

Lab Members

Lab Website