The Retinal Cell and Molecular Laboratory has three major areas of interest, each of which deals with some aspect of growth factor signaling and function in the retina and retinal pigmented epithelium (RPE): 1. Investigations aimed at gaining a better understanding of the pathogenesis of retinal and choroidal neovascularization and developing new ways to treat them. 2. Investigations aimed at understanding the molecular signals involved in retinal and RPE wound repair and scarring. The prototypical disease in this category is proliferative vitreoretinopathy and our laboratory is seeking to identify new treatments for it. 3. Investigations aimed at understanding why retinal degenerations occur and how they might be treated, with particular emphasis on neurotrophic factors.

Wilmer Bioinformatics has been mainly focused on ocular informatics. Specifically, the group develops and applies bioinformatics approaches to study gene regulation and signaling networks, with particular but not exclusive attention to the mammalian retina. Understanding the molecular basis of tissue specific gene regulation and signaling will contribute to better prevention, diagnosis and treatment of retinal disease.

Dr. Amir Kashani and his team are developing novel diagnostic and therapeutic methods to diagnose and treat retinal diseases using advanced imaging methods. These methods can detect the earliest changes in retinal capillaries before they are noticeable to the patient or doctor.

The research conducted in the Mumm Lab (Dept. of Ophthalmology, Wilmer Eye Institute) is focused on understanding how neural circuits are formed, how they function, and how they can be regenerated, to develop new therapies for retinal regeneration. Toward that end, we investigate the development, function, and regeneration of disease-relevant neurons and neural circuits responsible for vision. An emphasis is placed on translating what can be learned in regenerative model systems to develop novel therapies for stimulating dormant regenerative capacities in humans, Therefore, we apply what we learn from a naturally regenerative species, the zebrafish, toward the development of novel therapies for restoring visual function to patients. We place an emphasis on unique perspectives zebrafish afford to biological studies, such as in vivo time-lapse imaging of cellular behaviors and cell-cell interactions, and high-throughput chemical and genetic screening. We have pioneered several technologies to support this work including multicolor imaging of neural circuit formation, a selective cell ablation methodology, and a quantitative high-throughput phenotypic screening platform. Together, these approaches are providing novel insights into how the degeneration and regeneration of discrete retinal cell types is controlled.

The goal of the Singh Lab is to cure retinal degeneration due to genetic disease in patients. There are many retinal diseases such as Stargardts, Macular Degeneration, and Retinitis Pigmentosa, that are currently incurable. These diseases damage and eventually eliminate photoreceptors in the retina. The lab's aim is to take healthy photoreceptors derived from stem cells and transplant them into the patient’s retina to replace the lost photoreceptors. The transplanted photoreceptors are left to mature, make connections with the recipient’s remaining retina, and restore vision. Further, the lab is most interested in the cone-photoreceptor rich region of the macula, which is the central zone of the human retina, enabling high-acuity vision for tasks such as facial recognition and reading.

The Seth Blackshaw Lab uses functional genomics and proteomics to rapidly identify the molecular mechanisms that regulate cell specification and survival in both the retina and hypothalamus. We have profiled gene expression in both these tissues, from the start to the end of neurogenesis, characterizing the cellular expression patterns of more than 1,800 differentially expressed transcripts in both tissues. Working together with the lab of Heng Zhu in the Department of Pharmacology, we have also generated a protein microarray comprised of nearly 20,000 unique full-length human proteins, which we use to identify biochemical targets of developmentally important genes of interest.

The Ultra Low Vision Lab is interested in assessing and enhancing the functional visual abilities of individuals with ultra-low vision. The lab uses psychophysical experiments to investigate innovative methods for improving visual prostheses.

The King-Wai Yau Laboratory is interested in the area of sensory transduction. Specifically, we study visual and olfactory transductions, which are the processes by which the senses of vision and olfaction are initiated. Rods and cones are the retinal photoreceptors that absorb light for initiating image vision. We are studying the cellular and molecular details underlying rod and cone phototransduction.