Kay, Steve A.
Our laboratory studies the construction and dynamics of complex genetic networks that underlie circadian rhythms in humans, animals and plants. We also develop and use cutting-edge technologies for measuring transcription in live cells, tissues and intact organisms. We use large scale datasets of gene expression or protein content combined with genetics, bioinformatics and computational tools (mathematical modeling), chemical screens and more conventional biochemical approaches. Ultimately our aim is to scale our understanding of the dynamics of circadian clocks from the systems level down to atomic resolution mechanism. We have a strong commitment to translation of our research, in the case of humans for novel cancer drug discovery. We are currently focussing on targeting clock proteins in glioblastoma stem cells, in order to develop novel therapeutics.
Lee, Darrin Jason
The focus of my laboratory is to explore the underlying mechanisms and potential of neuromodulation for cognitive dysfunction and psychiatric disorders, such as Alzheimer’s disease, Parkinson’s disease, epilepsy, depression, obsessive compulsive disorder and schizophrenia. Specifically, we utilize multiple depth electrode local field potential recordings and functional ultrasound imaging to evaluate simultaneous electrophysiology, cerebral blood flow and functional connectivity in these disorders. Using these tools, our goal is to better understand the underlying pathophysiology and optimize our neuromodulation strategies. Our aim is to translate our preclinical findings into clinically relevant neuromodulation treatments. My clinical research is focused on evaluating potential new indications and targets for neuromodulation, such as deep brain stimulation (DBS), spinal cord stimulation and focused ultrasound.
Liew, Sook-Lei
Associate Professor of Biokinesiology and Physical Therapy
The overall mission of the laboratory is to enhance neural plasticity in a wide population of individuals in order to improve their quality of life and engagement in meaningful activities. We particularly focus on individuals with stroke using big data neuroimaging approaches, along with noninvasive brain stimulation and brain computer interfaces.
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.
Mather, Mara
Professor of Gerontology, Psychology, and Biomedical Engineering
The autonomic nervous system plays an underappreciated role in age-related change in the brain and cognition. But the sympathetic hub region in the brain (the locus coeruleus) is one of the first brain regions affected by Alzheimer’s disease pathology and deep sleep, a period of high parasympathetic activity, is critical for clearing out the potentially toxic proteins generated by the brain’s activity during the day (it is the aggregation of such proteins that leads to the hallmark plaques and tangles seen in Alzheimer’s disease). Our research is investigating how both sympathetic and parasympathetic function affect brain function and cognition in aging and how interventions that increase parasympathetic activity may enhance brain function in older adults.
Petzinger, Giselle
Associate Professor of Neurology (Clinical Scholar)
Dr. Giselle M. Petzinger is a Movement Disorders Specialist and neuroscientist in the department of neurology at USC Keck School of Medicine. Her training includes MD at USC, Neurology Residency at Yale, Fellowship at Columbia University and experimental therapeutics at the Parkinson’s Institute in the bay area. Her research involves animal models and clinical studies to investigate lifestyle on cognitive/motor function and synaptic plasticity in frontal-striatal and cerebellum circuits. Other studies include investigating the relationship between motor performance and cognitive function and related circuitry in PD and the role of compensation using behavioral, neuroimaging and neurophysiologic metrics. Her work also focuses on understanding neuro-energetic mechanisms of synaptic plasticity in PD focused on mitochondrial function and L-Lactate.
