• Hong Kong Polytechnic University (2017)

  • Molecular Genetics and Genomics

  • Shiming Chen, Ph.D.

  • Investigating the molecular mechanisms that regulate photoreceptor development and degeneration.

  • yiqiao.zheng@wustl.edu

Research

The Cone-rod homeobox gene (CRX) encodes an otd/Otx paired-like homeodomain (HD) transcription factor (TF), essential for photoreceptor development and survival. CRX regulates the expression of both rod and cone genes. Its regulatory activity depends on HD-DNA interactions as well as interactions with other transcription factors.
Mutations in human CRX are often associated with autosomal dominant blinding diseases. My thesis project aims to decipher how missense mutations in the CRX HD cause severe, early-onset, dominant pathological phenotypes.
I am employing an integrated approach - utilizing high-throughput biochemistry assays to establish quantitative in vitro molecular models which are then applied in understanding the molecular, cellular, and functional deficits in human mutation knock-in mouse models. I envision our findings would not only shed light on the regulatory mechanisms of CRX in photoreceptor biology, but also on other important HD proteins and associated diseases.

Last Updated: 9/4/2022 6:30:54 PM

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