Click on the faculty member’s name for a more in-depth description of their research and publications.
DEPARTMENT OF PHYSIOLOGY AND PHARMACOLOGY
Amir Askari, Ph.D.
Professor
Cornell University, 1960
Current research is on the interactions of cardiac Na/K-ATPase (the sodium pump) with neighboring proteins of the plasma membrane, leading to the recently appreciated signal transducing functions of this enzyme that regulate the effects of digitalis drugs on cardiac hypertrophy and heart failure.
Andrew D. Beavis, Ph.D.
Associate Professor
University of Bristol, U.K., 1977
Mitochondrial bioenergetics and transport processes.
Joana Chakraborty, Ph.D.
Professor
Institute of Nuclear Physics, Calcutta, India, 1962
To obtain basic understanding of the molecular mechanism of breast milk mediated retrovirus induced lymphoma development and epidemiological studies of HIV and AIDS.
George T. Cicila, Ph.D.
Associate Professor
University of Pennsylvania, 1986
My major interests are the inheritance of complex traits, with a focus on cardiovascular and related phenotypes. These include blood pressure, intrinsic aerobic running capacity, cardiac performance, and obesity. We are also studying a mutation that regulates the length of telomeres.
Jennifer W. Hill, Ph.D.
Assistant Professor
Northwestern University, 2003
I am interested are in the hypothalamic homeostatic mechanisms controlling body weight and fertility and the interactions between them. My hypothesis is that the suppression of reproductive cyclicity during states of negative energy balance results from the action of circulating metabolic factors (such as leptin, insulin, ghrelin, glucose, LC-FAs or PYY3-36), in the hypothalamus. My experimantal approach includes use of timed, targeted genetic manipulation, such as tissue-specific gene deletion.
Bina Joe, Ph.D.
Associate Professor
University of Mysore, Mysore, Karnataka, India, 1996
The focus of the Joe Lab is on the molecular genetics of complex traits. The current thrust area is on studying hypertension through a systems biology approach utilizing custom-genetically altered models of differential blood pressure.
Catherine (Lijun) Liu, M.D., M.S.
Assistant Professor
Clinical Medicine, Capital Medical University, Beijing, China, 1987-1992
Pharmacology, Capital Medical University, Beijing, China, 1992-1995
Signal transduction of Na/K-ATPase in cardiovascular system and cancer cells
Ronald Mellgren, Ph.D.
Professor
Iowa State University, 1976
My laboratory is interested in the mechanisms of plasma membrane repair. It is proposed that mechanically active cells (e.g., intestinal epithelial cells, skeletal and cardiac myocytes) routinely suffer damage to their outer cell membrane (plasma membrane), and must be able to efficiently repair membrane damage to survive. We are interested in identifying proteins involved in repair, including the calcium-dependent calpain proteinases, that appear to facilitate re-sealing of damaged membranes by remodeling the vicinal cytoskeleton.
Edith Mensah-Osman M.D., Ph.D.
Assistant Professor
Kharkov State Medical University, Kharkov, Ukraine; M.D., 1995
Wayne State University, Detroit, USA; Ph.D., 2003
My lab is currently working on three different areas of research. In the first we are investigating the perturbations in the signaling pathways that contribute or are affected by obesity, fatty liver disease and type 2 diabetes. In the second project, I am investigating the role of a nuclear receptor (SXR/PXR) that regulates drug metabolizing and multidrug resistance proteins in the pathophysiology of cancer. Specifically, we are interested in characterizing a variant form of this receptor found in osteosarcoma an aggressive malignancy of the bone to determine its role in tumor progression and drug resistance. In the third project, I am elucidating the role of somatostatin in the development of ileal carcinoid tumors found in the intestinal tract.
Nikolai Modyanov, Ph.D., D.Sc.
Professor
Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russia, Ph.D., 1973
Russian Academy of Sciences, D.Sc., 1987
Research in my lab is focused on the molecular aspects of ion transport across biological membranes. These studies led to the recent discovery of a novel structural member of the mammalian X,K-ATPase ß-subunit gene family, designated ßm due to its exclusive expression in skeletal and heart muscles. Studies are underway to elucidate functions of this hitherto unknown, muscle-specific protein.
Sonia Najjar, Ph.D.
Professor
Stanford University, 1989
Understanding the mechanisms of obesity, type 2 diabetes and fatty liver disease.
Sandrine Pierre, Ph.D.
Assistant Professor
Aix-Marseille II University, France, 2000
We study specific intracellular pathways involved in the integrated response of the myocardium to ischemia-reperfusion injury and metabolic disturbances. Our goal is to therapeutically address cardiomyocyte death following myocardial infarction and cardiovascular complications associated with obesity and insulin-resistance. We address these issues by combining techniques of molecular and cell biology with ex-vivo and in-vivo assessments of cardiac function in genetically altered mice.
Edwin R. Sanchez, Ph.D.
Professor
University of Michigan, 1983
Regulation of steroid hormone receptors, with emphasis on the convergence of the heat shock, immunophilin and glucocorticoid receptor signal pathways.
John W. Turner, Jr., Ph.D.
Professor
Cornell University, 1970
Current research interests are focused on the development of a single-injection, multi-year controlled-release wildlife contraceptive vaccine to alleviate suffering faced by numerous species which are overpopulating fixed-size habitats and on assessment environmental stress due to chronically deteriorating habitats in wildlife and fishes via fecal cortisol measurement.
Guillermo Vazquez, Ph.D.
Assistant Professor
Universidad Nacional del Sur, Argentina, 1997
The focus of our research is on the role of Canonical Transient Receptor Potential (TRPC) channels in endothelial dysfunction/inflammation associated to cardiovascular and metabolic diseases. The repertoire of TRPC isoforms expressed in endothelium from different vascular beds, signaling modulating channel function, and molecular/cellular outcomes of TRPC-mediated Ca2+ entry, are some of the subjects of our studies.
Robert Wang, Ph.D.
Assistant Professor
University of Texas Southwestern Medical Center, 2001
Protein folding and trafficking, membrane transport, epithelial cell biology and related human diseases.
Zijian Xie, Ph.D.
Professor
Medical College of Ohio, 1990
Molecular biology of plasma membrane ion transporters and their roles in signal transduction.
DEPARTMENT OF BIOCHEMISTRY AND CANCER BIOLOGY
Manohar Ratnam, Ph.D.
Professor
Indian Institute of Science, Bangalore, India, 1983
The mammalian folate receptor (FR) is a prominent topic in current literature due to the interest of investigators in multiple disciplines in the biological sciences. The principal focus of the Ratnam is geared towards a substantial and detailed analysis of key phenomena related to the structure, function, and regulation of FR as well as the clinical contexts in which specific FR isoforms may be utilized for diagnostic, prognostic, and therapeutic applications.
Cynthia M. Smas, D.Sc.
Assistant Professor
Harvard University, 1994
Work in Dr. Smas’ laboratory addresses gene regulation and cell differentiation using two model systems: 1.) Differentiation of fibroblastic mesenchymal precursor cells to mature adipocytes that occurs in normal development but which may be accelerated in obesity; and 2.) Neuroendocrine differentiation that occurs during the course of prostate cancer and which may support a transition to androgen-independent tumor growth.
DEPARTMENT OF MEDICAL MICROBIOLOGY AND IMMUNOLOGY
Mark Wooten, Ph.D.
Assistant Professor
University of Mississippi Medical Center, 1995
Dr. Wooten's laboratory is interested in the host/pathogen interactions that lead to the development of Lyme disease. Borrelia burgdorferi is highly infectious and especially adept at evading host defenses and persisting in various tissues, even in an apparently immunocompetent host. His research takes an immunological approach to identification of host mechanisms involved in control of spirochete persistence and in mediating the inflammatory pathology related to Lyme disease.
DEPARTMENT OF MEDICINE
Khew-Voon Chin, Ph.D.
Associate Professor
Rutgers University, 1988
Dr. Chin’s laboratory has three areas of research focus: (i) They are interested in novel cAMP signaling mechanisms involving the regulatory subunit (R) of the cAMP dependent protein kinase (PKA). They have shown that the R subunit can interact with novel protein partners and regulate cell growth. (ii) They apply expression genomics (expression profiling by DNA microarray) for the identification of genes that contribute to drug resistance in cancer treatment. (iii) They are also studying the transcriptional regulation of adipogenesis and the molecular actions of a novel small molecule that disrupts this pathway and thus inhibition of fat cells differentiation.
Alexei Fedorov, Ph.D.
Assistant Professor, Director of Bioinformatics Laboratory
Institute of Molecular Genetics, Russian Academy of Sciences, Moscow, 1993
Origin and evolution of introns. Computer mining of novel genes. Prediction of constitutive and alternative splicing. Information content of genes beyond the coding meaning – codon bias and context-dependent codon bias. How are these biases created and maintained? Principles of genome organization.
Jiang Liu, M.D., Ph.D.
Assistant Professor
Peking University, School of Medicine, M.D., 1987
Chinese Academy of Preventive Medicine, Ph.D., 1994
Cardiotonic steroids-induced regulation of sodium reabsorption in renal proximal tubule. Ouabain inhibits sodium reabsorption in proximal tubule, a process mediated by ouabain-activated Na/K-ATPase signaling. This regulation includes ouabain-induced trafficking of the Na/K-ATPase and NHE3 (sodium-proton exchanger isoform 3), as well as transcriptional regulation of NHE3.
Joseph I. Shapiro, M.D.
Mercy Health Partners Education Professor and Chairman, Department of Medicine
Professor of Medicine and Physiology/Pharmacology
UMDNJ-New Jersey Medical School, 1980
Our laboratory focuses on the cardiovascular disease which develops in the context of renal insufficiency. Specifically, we are interested in the role(s) which signaling by cardiotonic steroids through the Na/K-ATPase play(s) in the pathogenesis of hypertension, cardiac hypertrophy, diastolic dysfunction and fibrosis in experimental and clinical renal diseases.
DEPARTMENT OF UROLOGY
Ewa Skrzypczak-Jankun, Ph.D.
Associate Professor
Adam Mickiewicz University, 1976
Structure and mechanism of proteins and enzymes, their relation to the human diseases, inhibition/targeted drug design, X-ray structural analysis of crystals and small angle X-ray scattering in solution, molecular modeling, molecular engineering. My research concerns proteins and enzymes involved in blood coagulation, cancer and fatty acid metabolism (Figure: ribbon drawing of lipoxygenase, its active site and cavities).
DEPARTMENT Of NEUROLOGY
L. John Greenfield Jr., M.D., Ph.D.
Associate Professor
Neuroscience, University of Virginia, Ph.D., 1988
University of Virginia, M.D., 1989
Mechanisms of action of Antiepileptic Drugs; Structure and function of GABA-A receptors; Regulation of GABA-A receptors by chronic antiepileptic drugs; Regulation of voltage-gated sodium channels; Human-derived NT2-N cultured neuron
DEPARTMENT OF NEUROSCIENCES
David Giovannucci, Ph.D.
Assistant Professor
Director, Raymond & Beverly Sackler Laboratory for Neuroendocrine Tumor Research
Wayne State University, 1993
Cellular and molecular basis of peptide and protein secretion of peptide neurotransmitters and hormones; Ca2+ signaling mechanisms; Neuroendocrine cancer; Mitochondrial function in health and disease. Studies employ a combination of electrophysiological and optical methods to follow in real-time the secretory activity and Ca2+ dynamics of single isolated nerve endings and a variety of acutely isolated or cultured cell types.
DEPARTMENT OF ORTHOPEDIAC SURGERY
A. Champa Jayasuriya, Ph.D.
Assistant Professor
Shizuoka University, Hamamatsu, Japan, 1997
My research areas are bone tissue engineering, regenerative medicine and biomaterials.
Beata Lecka-Czernik, Ph.D.
Professor
Institute of Biochemistry and Biophysics Polish Academy of Sciences, Warsaw, Poland, 1986
Previously, we have demonstrated that a class of anti-diabetic drugs TZD have adverse effects on bone by causing bone loss and affecting fracture healing in animal models. We have also showed that this process can be prevented by using slightly modified TZD drugs, which retain their beneficial anti-diabetic effects but are lacking adverse effects on bone. Currently, we are investigating molecular mechanisms by which TZDs induce bone loss and investigating the means by which diabetic bone status can be improved by using bone-specific gene and stem cell therapies, as well as pharmacological therapies.
DEPARTMENT OF SURGERY
David C. Allison, M.D., Ph.D.
Professor
University of Michigan College of Medicine, M.D.
University of Chicago, Ph.D.
Dr. Allison’s laboratory is studying the mechanisms responsible for the selection of chromosomal abnormalities in aneuploid cancers. We are specifically testing the possibility that chromosomal abnormalities are conserved to retain cell-survival genes required for tumor-cell growth coincident with the loss of chromosomal regions containing tumor suppressor genes retarding tumor growth, or losses of heterozygosity (LOHs). Special attention is being paid to the possibility that tumor LOHs might prove to be an important indicator for breast cancer patients. Techniques employed in the laboratory include Gene Mapping and Expression Arrays, Spectral Karyotyping analysis of cancer chromosomes, and Laser Capture Microdissection of breast cancer cells in paraffin-embedded tissue blocks.