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Woster research an awardee in Sickle Cell Disease/Advancing Cures funding; fast-track research focused on developing a new gene-modifying sickle cell disease treatment at MUSC could lead to human clinical trials in as few as three years.
The College of Pharmacy at the Medical University of South Carolina provides a premier pharmacy education leveraging the innovative inter-professional learning opportunities offered at South Carolina’s only comprehensive academic health center with a full range of programs in the biomedical sciences.
MUSC pharmacy students immersed themselves in compounding during a special boot camp on campus February 23-24. Twenty-seven students participated in the Professional Compounding Centers of America (PCCA) Boot Camp, an intensive two-day session that furthered their compounding training.
The MUSC College of Pharmacy Alumni Ambassador Program was a big part of the fall recruiting campaign, in which the College was represented at formal recruitment events at Clemson, UGA, Furman, USC, North Carolina State, the Atlanta University Center and many more. Contact Abby Grady for information.
The 2018 Medisca Student Pharmacist Compounding Competition winners are Meghan White, Zach Posey and Ryan Rosenblatt. The team will go on to represent MUSC in the eighth annual national competition, held March 17-18, which includes a practical lab, a Q-and-A, a presentation and a compounding challenge.
Research is part of the College's trifold mission of education, research and patient care. Our research in the Department of Drug Discovery and Biomedical Sciences is concentrated in four areas:
Bioorganic/Medicinal Chemistry (identification of new drug targets; rational and computer-aided drug design, synthesis and analysis; drug metabolism; and bioorganic and molecular immunology)
Pharmaceutics and Pharmacology (microscale and nanoscale drug delivery systems, and ion channel physiology and pharmacology)
Cell Death, Injury, and Regeneration (mechanisms of drug- and disease-induced cell injury, death and regeneration; molecular and cellular toxicology; drug transport; and acute heart, kidney, liver failure and stroke)
Cancer Etiology and Therapeutics (mechanisms of cancer chemoprevention; inflammation; genome instability and DNA repair; and cancer therapeutic mechanism of action)
For information about graduate research training, visit Doctor of Philosophy Program Objectives and Requirements
Research in the Beeson group is a fusion of chemistry and cell biology. Assays for cell metabolism are being combined with proteomic, NMR and mass spectrometric techniques to develop quantitative descriptions of biochemical networks. Analyses of these networks identify key molecular species that are potential targets for therapeutic agents. Our primary focus is the biochemical network responsible for the regulation of energy metabolism and cellular proliferation. Specific projects include studies of T-cell activation and myocardial glucose utilization. The results of the T-cell studies are being used to develop possible treatments for autoimmune diseases such as Multiple Sclerosis. A byproduct of these studies has been the development novel peptide mimetics and library based synthesis and screening techniques, which are also being used to develop inhibitors of the M. tuberculosis iron dependent repressor and Topoisomerase I. Our studies of myocardial glucose utilization have defined critical roles for lipoproteins in the regulation of mitochondrial respiration and glycolysis. These results are being used to evaluate the mechanisms of tissue injury due to ischemia-reperfusion.
Research in the Chan laboratory focuses on mitochondrial dysfunction and disease. In particular, we are using the zebrafish as a model for mitochondrial diseases. The zebrafish (Danio rerio) is an important vertebrate model organism, offering many advantages for understanding basic biological processes. Breeding pairs can produce hundreds of embryos that develop outside of the mother and are frequently used in high-throughput drug screens. The use of zebrafish embryos and larvae for environmental agent testing is also well established. Furthermore, zebrafish embryos can be genetically manipulated, and because these embryos are transparent, development can be monitored and phenotypic changes can be scored easily. There are no cures or effective long-term treatments for mitochondrial diseases. To fulfill our long-term goals of developing therapeutic treatments and new biomarkers for the early detection of mitochondrial disease, we are investigating pathways that are important in the development of mitochondrial disease, and the role of environmental and drug modifiers on mitochondrial function.
Our research group aims to understand the roles that mammalian enzymes play in physiological and pathological processes utilizing unique chemical and biological tools. Our current research focuses on the biological mechanism of histone deacetylase 6 (HDAC6) through chemical and biological approaches. HDAC6 is the only HDAC containing two deacetylation domains, and canonical hydroxamate HDAC6 inhibitors only target the tubulin deacetylation domain. We have discovered a highly selective and structurally unique HDAC6 inhibitor capable of inducing both acetylation tubulin and acetylated heat-shock protein 90 suggesting unique and separate substrate selectivity for each domain. Our studies have shown that it is likely each HDAC6 deacetylation domain function is independent of each other function and involved different biological pathways.
We also aim to develop synthetic analogs of vitamin K and vitamin E, and characterize their effects in mitochondria functions. We have developed synthetic analog of vitamin K capable of protecting glutamate induced toxicity in hippocampal HT-22 cells with effective concentration below 50 nM. Vitamin K2 has recently been indicated to be a key component of mitochondria electron transfer chain and it’s capable of alleviating Pink1 and Parkin non-flight phenotype in drosophila. Our vitamin K analogs also protect cells from direct tert-butyl hydroperoxide suggesting additional molecular pathways might be involved at protecting direct peroxide assaults. Our laboratory is interested in defining the key neuro- and cyto-protective mechanism(s) of vitamin K2 and its analogs through both chemical tools and biological techniques.
The ultimate goal of our laboratory is to combine both chemical and biological approaches toward discovering novel biological targets, designing/synthesizing novel compounds, and evaluating the effectiveness of the potential drug candidates in both in-vitro and relevant animal models.
Our research addresses the development and exploitation of novel strategies of rational drug design, with a focus on peptide-based therapeutics. We have demonstrated dramatic improvements in the activities, stabilities, selectivities, and barrier-crossing efficiencies of peptide therapeutic candidates utilizing our strategies, which have been patented. Therapeutic candidates under current development include antithrombotic, antipsychotic, and antiviral peptides; our strategies can be applied to virtually any peptide of therapeutic interest. We also are developing biochemical tools such as receptor-specific peptide analogs, which then will be used to define the detailed physiological roles of individual members of receptor families.
Dr. Lemasters’ research interests concern the cellular and molecular mechanisms underlying toxic, hypoxic and ischemia-reperfusion injury to liver and heart. His laboratory applies new techniques of laser scanning confocal and multiphoton microscopy to characterize the physiology of single living cells, including the assessment of ion homeostasis, chelatable iron, mitochondrial function, electrical potentials, oxygen and nitrogen free radical formation, membrane permeability and other biochemical parameters during the pathogenesis of lethal cell injury. These approaches are being extended to true in vivo (intravital) imaging of cells and tissues in living animals.
Increased Ca2+, formation of reactive oxygen and nitrogen species, and oxidation of pyridine nucleotides and glutathione promote a phenomenon called the mitochondrial permeability transition that in turn leads to mitochondrial depolarization and uncoupling of oxidative phosphorylation. Studies in living cells show MPT initially induces the sequestration and lysosomal degradation of mitochondria by the process of autophagy (mitophagy). However, excess MPT induction induces both necrotic cell death and apoptosis during reperfusion injury, oxidative stress, excitotoxicity, calcium ionophore-induced toxicity, drug toxicity, exposure to tumor necrosis factor-alpha, Fas ligation and organ preservation for transplantation surgery. Inhibitors of the MPT decrease or abolish cell killing in these models. Progression to apoptosis or necrosis after the MPT depends on the presence or absence, respectively, of ATP. Often, features of both apoptotic and necrotic cell death develop after death signals and toxic stresses. These findings offer new strategies to rescue cells and tissues from irreversible toxic and ischemic injury.
Despite a detailed understanding of their metabolism, mitochondria often behave anomalously. In particular, global suppression of mitochondrial metabolism and metabolite exchange occurs in apoptosis, ischemia and anoxia, cytopathic hypoxia of sepsis and multiple organ failure, alcoholic liver disease, aerobic glycolysis in cancer cells (Warburg effect) and unstimulated pancreatic beta cells. The lab is exploring the hypothesis that closure of voltage-dependent anion channels (VDAC) in the mitochondrial outer membrane accounts for global mitochondrial suppression consistent with a role for VDAC as a dynamic regulator, or governator, of global mitochondrial function both in health and disease.
The laboratory is investigating mechanisms of cell injury and cell death in various pathological settings, mostly related to cancer. Currently we are interested in treating head and neck cancers with photodynamic therapy.
Dr. Maldonado’s laboratory focuses on mitochondrial metabolism in cancer and cancer bioenergetics. He proposes that suppression of mitochondrial metabolism in cancer is contributed both by the closure of voltage dependent anion channels by free tubulin and the lack of function of the adenine nucleotide translocator. Dr. Maldonado’s research combines a basic approach to understand mechanisms underlying the suppression of mitochondrial metabolism in the pro-proliferative Warburg phenotype with the development of a new generation of anti-Warburg chemotherapeutic agents.
Drug design, metabolism, pharmacokinetics and drug interactions: The influence of drug bioavailability/metabolism on clinical response is being explored through the synthesis and pharmacological evaluation of metabolites and the application of gas chromatography-mass spectrometry to therapeutic drug monitoring. The relationship between drug stereochemistry and biological activity is being investigated following analytical and preparative scale isomeric resolutions. Psychotherapeutic drug candidates are being designed and synthesized for selective targeting of neurotransmitter receptor subtypes and for overcoming biological barriers.
Dr. Peterson’s research focus is in applied pharmacologic sciences using in vitro, cell based, and in silico approaches to quantitate protein and small molecule functionality to bridge between chemical biology and pathobiology. He has experience in the experimental biology and modeling of protein-protein interactions, protein-ligand interactions, and hormone signaling. Specifically, his research efforts have included the study of arrestins, the cytoskeleton, GPCRs, heterotrimeric and monomeric G-proteins, scaffolding proteins (like RGS and AGS G-protein regulators), prenyltransferases, methyltransferases, deacetylases, kinases, lipid binding proteins, mitochondria, and endosomes. Highlight innovations from the Peterson group include the discovery and therapeutic utility (Tat-GPR) of guanine nucleotide dissociation inhibitors, software to analyze endosome kinetics (DotQuanta), the discovery of Gi-alpha suppression in the majority of ovarian cancer patients, and methodologies to optimize virtual screening for drug discovery. Dr. Peterson’s current research focus is on the application of high-content microscopy to study cellular protein kinetics and predictive bioinformatics using QSAR, pharmacophores, and molecular docking.
Ed Soltis, Ph.D.
Patrick M. Woster is Professor of Drug Discovery and Biomedical Sciences at the South Carolina College of Pharmacy in Charleston, SC, and serves as the South Carolina SmartState™ Endowed Chair in Drug Discovery at the Medical University of South Carolina. He received a B.S. in Pharmacy from the University of Nebraska Medical Center in 1978, and a Ph.D. in Medicinal Chemistry from the University of Nebraska - Lincoln in 1986. Following postdoctoral work in chemistry at Rensselaer Polytechnic Institute (1986), and in medicinal chemistry at the University of Michigan (1987), he joined the faculty at Wayne State University in 1988. At Wayne State, Professor Woster taught undergraduate biochemistry and medicinal chemistry courses, graduate level courses in medicinal and bioorganic chemistry, and developed a series of web-based tutorials for students in medicinal chemistry. He was voted Teacher of the Year eight times, and received the WSU President's Award for Excellence in Teaching in 1993. He was also awarded a Wayne State University Career Development Chair in 1997.
In 2011, Professor Woster moved to MUSC, where he was appointed Professor and South Carolina SmartState™ Endowed Chair in Drug Discovery. Professor Woster maintains an active research program that has been funded by several agencies, including the National Institutes of Health, the World Health Association and the pharmaceutical industry. Ongoing projects in the Woster laboratories include the synthesis of alkylpolyamines as antitumor or antiparasitic agents, synthesis of novel inhibitors of lysine-specific demethylase 1 and histone deacetylase as epigenetic modulators, solution- and solid-phase synthesis of peptide-based inhibitors of plasmepsin, synthesis of S-adenosylmethionine analogues as mechanism-based enzyme inhibitors and synthesis of furanocoumarins as inhibitors of cytochrome P450. Dr. Woster has directed a number of Ph.D. dissertations and Master's theses, and has mentored ten postdoctoral associates. To date, he has authored more than 95 articles in peer-reviewed research journals, and more than 100 research abstracts and invited presentations. Dr. Woster has also served as a member of two NIH study sections, and on editorial boards or as a reviewer for numerous scientific journals.
Professor Woster has been a member of ACS and the Division of Medicinal Chemistry since 1979, and is also a member of the Organic Chemistry and Biological Chemistry divisions. He assumed an active service role in the Division of Medicinal Chemistry in 1994 as a member of the Membership Committee and Chair of the Electronic Communications Committee. Dr. Woster was a member of the Division Long Range Planning Committee (1998 - 2000), and organized 4 symposia for National ACS meetings. He served as Secretary and Public Relations Chair for the Division of Medicinal Chemistry from 1994 - 2010, and is currently Chair of the Division. Dr. Woster has served as an officer for the American Association of Colleges of Pharmacy (AACP), where he is a Past Chair of the Section of Teachers of Chemistry. During 2004-2005, he was a member of the AACP Executive Board of Directors, and Chair of the Academic Sections Coordinating Committee.
My research interests are on the mechanisms of cell injury, death and regeneration, with foci on the roles of free radicals and mitochondrial function in liver and kidney diseases and development of novel therapeutics to prevent injury and accelerate the regeneration/repair processes. In particular, using state-of-the-art intravital confocal/multiphoton microscopy, which allows visualization of cells and organelles in live animals, as well as RNAi and molecular biological techniques in combination with a variety of animal models, isolated organ perfusion and cell culture, we are investigating the mechanisms of mitochondrial dysfunction/biogenesis, the cellular, organelle, and enzymatic resources of free radical production, and the roles of free radicals in alteration of signal transduction that subsequently affect pathogenesis and regenerative processes. We are studying hepatic and renal injury, fibrosis and regenerative processes in alcohol and drug exposure, liver and kidney transplantation, ischemia-reperfusion, obesity, and cholestasis. The overall goal of our research is to gain new insights into the mechanisms and to develop effective therapeutics to prevent and treat these hepatic and renal diseases.
Abby Grady, assistant director of college relations, and pharmacy students Adrienne Busch ’21, Makayla Dudley ’20 and Ashley Mitchell ’20 hosted the College’s first “Future Pharmacist Academy” with Horizons at Ashley Hall (HAH) on July 18....Read more...