Molecular

Lee, Changhan David

Associate Professor of Gerontology

The Lee Lab investigates how metabolism regulates aging and age-related diseases, including Alzheimer’s, with a focus on mitochondrial communication. Traditionally viewed as end-stage organelles, mitochondria are now recognized as active signaling hubs. We study newly discovered bioactive microproteins encoded in the mitochondrial genome—particularly within the 12S rRNA region—that act as innate signals influencing cell and organismal physiology. These microproteins function both within and between cells and may serve as mitochondrial longevity genes and therapeutic targets. Our work bridges molecular biology and whole-organism physiology to uncover how mitochondria influence aging from within. Students interested in metabolism, mitochondrial biology, and translational aging research will find rich opportunities here.

Lee, Sun Young

Associate Professor of Ophthalmology and Physiology and Neuroscience

LeeRetinaLab investigates the pathobiology of age-related macular degeneration and diabetic retinopathy, with a focus on developing extracellular vesicle (EV)-based therapeutics. Our team has expertise in small EV (sEV) isolation, characterization, and bioengineering, and we regularly work with relevant animal models. To optimize sEV-based intraocular therapies, we apply both conventional and advanced technologies, including single-particle analysis, nano-flow cytometry, digital PCR, cryo-EM, and multi-omics approaches (transcriptomics, proteomics, lipidomics, and metabolomics). We take a multidisciplinary approach and collaborate closely with experts in bioengineering, regenerative medicine, and gene therapy to accelerate translational outcomes and therapeutic innovation in retinal disease research.

Levitt, Pat

Provost Professor of Cell and Neurobiology, and Pharmacology and Pharmaceutical Sciences, and Psychology

The research projects are driven by a talented group of postdoctoral fellows, graduate students, research staff and collaborating faculty. Our laboratory is unique in undertaking both basic and clinical research projects. Research projects investigate the development of brain architecture underlying emotional and social behavior and learning, the challenges that arise when neurodevelopment is derailed, and determining why brain and certain medical disorders often co-occur in children. The basic science projects are focused how genes and prenatal and early postnatal environments together influence typical and atypical development. The clinical research projects focus on understanding the impact of early experiences, positive (social connectedness) and negative (early life adversities - neglect/abuse) on healthy brain and child development and the impact on metabolic health.

Liman, Emily

Harold W. Dornsife Chair in Neuroscience and Professor of Biological Sciences

The Liman lab studies how ion channels enable sensory cells to convert chemical and mechanical cues into electrical signals. We discovered the Otopetrin (OTOP) family of proton-selective ion channels and showed that OTOP1 is the long-sought sour-taste receptor as well as a detector of ammonium. Using patch-clamp electrophysiology, structure-guided mutagenesis, cryo-EM, and in vivo genetics we aim to reveal how protons permeate OTOP pores, how gating is tuned by pH and lipids, and how channel activity shapes taste, balance, and metabolic physiology. Ongoing projects extend these questions to other OTOP isoforms combining medium-throughput screening with computational modeling to identify first-in-class modulators and mouse genetics to identify and manipulate cells that express OTOP channels. Students gain rigorous cross-disciplinary training in membrane biophysics and sensory neuroscience while working in a collaborative, inclusive environment.

Longo, Valter

Professor of Gerontology and Biological Sciences

WE are interested in the biology of aging and neurodegenerative diseases including Parkinson and Alzheimer. Our focus is on the connection between systemic dysfunction and aging and cognitive decline. One of our ongoing questions is how do aging and insulin resistance accelerate brain aging and Alzheimer's disease, with focus on neuroinflammation

Matho, Katherine

Assistant Professor

How do developmental and genetic programs build brain circuits for complex behavior? My lab investigates this question by integrating developmental neuroscience, molecular genetics, and multi-scale circuit mapping to study cortical sensorimotor circuits underlying goal-directed actions and perception. Using interdisciplinary approaches, such as gene knockin mouse lines and single cell profiling, we examine how neuronal identity and connectivity emerge during development. Our goal is to uncover the molecular and developmental logic of circuit assembly in neurotypical development and how the key building blocks that make up the circuits—cell types—are disrupted in neurodevelopmental disorders. We hypothesize that a temporal patterning program during pregnancy specifies neuron subtype and wiring, shaping sensorimotor function in the mature brain.