School of Medicine
Showing 1-10 of 39 Results
Manuel R. Amieva
Associate Professor of Pediatrics (Infectious Diseases) and of Microbiology and Immunology
Current Research and Scholarly Interests My laboratory studies the strategies pathogens utilize to colonize and subvert the epithelial barrier. We have focused on the epithelial junctions as a target for bacterial pathogens, since the cell-cell junctions serve as both a barrier to infection and also a major control site for epithelial function. In particular, we are interested in how the gastric pathogen Helicobater pylori may cause cancer by interfering with cell signaling at the epithelial junctions. We are also studying how various bacteria cross and invade the epithelium. For example, we recently found that Listeria monocytogenes targets a specialized subset of cell-cell junctions at the tip of the intestinal villi to find its receptor for invasion. We are interested in determining whether this mode of gastrointestinal invasion of the epithelium is also used by other gastrointestinal pathogens.
Ann M. Arvin
Vice Provost and Dean of Research, Lucile Salter Packard Professor of Pediatrics and Professor of Microbiology and Immunology
Current Research and Scholarly Interests Our laboratory investigates the pathogenesis of varicella zoster virus (VZV) infection, focusing on the functional roles of particular viral gene products in pathogenesis and virus-cell interactions in differentiated human cells in humans and in Scid-hu mouse models of VZV cell tropisms in vivo, and the immunobiology of VZV infections.
Helen M. Blau
The Donald E. and Delia B. Baxter Foundation Professor and Director, Baxter Laboratory for Stem Cell Biology
Current Research and Scholarly Interests Prof. Helen Blau's research area is regenerative medicine with a focus on stem cells. Her research on nuclear reprogramming and demonstrating the plasticity of cell fate using cell fusion is well known and her laboratory has also pioneered the design of biomaterials to mimic the in vivo microenvironment and direct stem cell fate. Current findings are leading to more efficient iPS generation, cell based therapies by dedifferentiation a la newts, and discovery of novel molecules and therapies.
Professor of Pathology and of Microbiology and Immunology and, by courtesy, of Chemical and Systems Biology
Current Research and Scholarly Interests Our lab uses chemical, biochemical, and cell biological methods to study protease function in human disease. Projects include:
1) Design and synthesis of novel chemical probes for serine and cysteine hydrolases.
2) Understanding the role of hydrolases in bacterial pathogenesis and the human parasites, Plasmodium falciparum and Toxoplasma gondii.
3) Defining the specific functional roles of proteases during the process of tumorogenesis.
4) In vivo imaging of protease activity
Assistant Professor of Medicine (Infectious Diseases) and of Microbiology and Immunology
Current Research and Scholarly Interests Our lab studies how immune responses are regulated within chronically inflamed or infected tissues. In particular, we study how the extracellular matrix influences local immunity and why these responses are dysregulated in autoimmune diseases, poorly healing wounds, and chronic infections.
We welcome research students with interests in immunology, structural biology, and microbiology.
Burt and Marion Avery Professor of Immunology
Current Research and Scholarly Interests We are intereseted in the interaction between the protozoan parasite Toxoplasma gondii and its mammalian host. We use a combination of molecular and genetic tools to understand how this obligate intracellular parasite can invade almost any cell it encounters, how it co-opts a host cell once inside and how it evades the immune response to produce a life-long, persistent infection.
Assistant Professor of Microbiology and Immunology
Current Research and Scholarly Interests Our research focuses on the identification of host genes that play critical roles in the pathogenesis of infectious agents including viruses. We use haploid genetic screens in human cells as an efficient approach to perform loss-of-function studies. Besides obtaining fundamental insights on how viruses hijack cellular processes and on host defense mechanisms, it may also facilitate the development of new therapeutic strategies.
Chia Yu Alex Chang
Instructor, Microbiology & Immunology - Baxter Laboratory
Current Research and Scholarly Interests Duchenne muscular dystrophy (DMD) is an X-chromosome-linked genetic disease that is caused by a mutation in the dystrophin gene and affects 1 in every 3500 boys. DMD patients suffer progressive muscle wasting and eventual cardiorespiratory failure that results in an early death in the second or third decade of life. Although extensive research effort has been invested, lack of a good mouse model that mimics the cardiac failure hinders research. We have developed a novel mouse model that exhibit all the symptoms found in DMD patients and our research is aimed at understanding the cardiac failure in DMD for future therapeutic interventions. Our mouse model fully recapitulates the DMD symptoms because we also took into account of the size of human protection DNA on chromosomal ends (telomere) compared to mouse. We would like to study the cause of cardiac failure in our mouse model by 1) determine if telomere shortening is specific to cardiomyocytes, 2) evaluate the level of cellular damage caused by oxidative stress and 3) identify the source of oxidative stress. These experiments will help us to better understand cardiac failure in DMD patients and allow testing of therapeutic interventions.
Professor of Microbiology & Immunology
Current Research and Scholarly Interests Contribution of T cells to immunocompetence and autoimmunity; how the immune system clears infection, avoids autoimmunity and how infection impacts on the development of immune responses.
Professor of Photon Science, Bioengineering and of Microbiology and Immunology
Bio Wah Chiu received his BA in Physics (1969) and PhD in Biophysics (1975) from the University of California, Berkeley. He is a professor in the Department of Bioengineering, Department of Microbiology and Immunology and the SLAC National Accelerator Laboratory at Stanford University. He is a pioneer in methodology development for electron cryo-microscopy. His work has made multiple transformational contributions in developing single particle electron cryo-microscopy as a tool for the structural determination of molecular machines towards atomic resolution.
For three decades, Dr. Chiu directs a NIH funded 3DEM Resource Center. He has solved many cryo-EM structures including viruses, chaperonins, membrane proteins, ion channels, cytoskeleton protein complexes, protein-DNA complexes, DNA and RNA in collaboration with many scientists around the world. His 3DEM Resource Center continues to establish high standard testing and characterization protocols for cryoEM instrumentation and to develop new image processing and modeling algorithms for cryo-EM structure determination.
Dr. Chiu?s research, collaboration and training efforts have been recognized by his elected membership to the Academia Sinica, Taiwan (2008) and the United States National Academy of Sciences (2012) in addition to several honors including the Distinguished Science Award from the Microscopy Society of America (2014) and the Honorary Doctorate of Philosophy from the University of Helsinki, Finland (2014).