ImmunoX Faculty Directory

The Faculty Directory highlights the diverse community of faculty engaged with the Bakar ImmunoX Initiative. Use the filters to explore areas of expertise, connect across disciplines, and learn more about the people advancing immunology research and training at UCSF.

Join Our Community▸
Roles
All
Research
All
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Sort
View
Microbial Pathogenesis and Infectious Diseases
Leadership Committee
Anita Sil
The Sil Lab studies the fungal pathogen Histoplasma capsulatum, which is a soil organism that can infect and colonize cells of the innate immune system after inhalation into mammals. Their research is driven by two key questions. First, how do cells sense temperature and make a developmental switch from the soil to the host program? They focus on temperature because it is a sufficient signal to recapitulate the morphologic switch bettheyen Histoplasma filaments (the soil form) and yeast (the host form) in culture. This question is critical to understanding the basic biology of Histoplasma as theyll as a number of closely related fungi such as Blastomyces, Coccidioides, and Paracoccidioides, each of which is a ubiquitous pathogen of immunocompetent hosts in endemic areas. In fact, one of the fascinating evolutionary questions about these environmental fungi is how regulatory circuits have evolved to link morphology and virulence programs with growth at host is be an entry point to broader studies of host-fungal interactions, since it will define critical developmental changes that promote the expression of virulence traits, as theyll as delineate molecular landmarks that will allow us to stage the interactions of the fungus with host cells. Second, how does H. capsulatum defy the innate immune response to take up residence, often permanent, in immunocompetent hosts? The past ten years have witnessed an exponential increase in their understanding of the innate immune response to microbes, and yet, in the case of fungi, their insight is rudimentary at best. Their studies explore the molecular communication at the host-pathogen interface bettheyen H. capsulatum and the macrophage. H. capsulatum displays extremely robust macrophage colonization, so it is currently the best fungal candidate to probe the Achilles' heel of these powerful innate immune cells and determine novel mechanisms of virulence that have evolved in eukaryotic pathogens.
See More
Sil
Anita Sil
Professor and Department Chair
Autoimmunity
Member
Judith Ashouri-Sinha
The Ashouri lab is focused on understanding how aberrant immune cell signaling disrupts immune tolerance, resulting in autoimmune (AI) disease. We are particularly interested in T cell mechanisms that contribute to the onset of rheumatoid arthritis (RA), a debilitating disease affecting millions. A specific aim of the Ashouri lab is to identify antigen-activated T cells in RA in order to capture and profile arthritogenic clones and elucidate the earliest events in disease pathogenesis. Our work takes advantage of a specific reporter of T cell antigen receptor (TCR) signaling. Tracking the expression of this reporter of TCR signaling in murine and human T cells facilitates our ability to identify and study arthritis-causing T cells before and during RA disease development and addresses the following questions: 1) How are T cells that are relatively deficient TCR signaling able to mediate arthritis development? Our lab uses molecular and biochemical techniques to examine how chronic TCR signaling can enhance T cell sensitivity to cytokine signaling and its dysregulation in disease. 2) How are arthritis causing CD4 T cells initially triggered in disease and to what antigen do these T cells respond? We utilize multi-dimensional and high-throughput technologies including paired single-cell RNA and TCR-sequencing from mouse and human samples with significant potential to identify the TCR specificity, gene expression profile, and signaling networks of cells involved in antigen recognition in RA. Our model system provides a platform to track antigen-specific T cell responses in human diseases in which the inciting antigen is not known and could be broadly applied to other AI diseases, transplant rejection, cancer, and even checkpoint blockade.
See More
Sinha
Judith Ashouri-Sinha
Assistant Professor
Infection and Host Defense
Immunogenetics
Leadership Committee
Sara Suliman
The Suliman Lab builds on the foundation of previous human cohort studies to pursue the following directions:From systems biology to innate correlates of TB progression: 1) The lab is following up on candidate pathways identified through systems biology experiments performed on samples from human cohorts of TB progressors and healthy Mtb-exposed counterparts in Sub-Saharan Africa and South America. These genetic and transcriptional profiling studies point to candidate TB risk pathways including sodium/potassium ATPases and tyrosine metabolism enzymes in innate immune populations. The lab is functionally dissecting the roles of these genes using pharmacological inhibitors and CRISPR/Cas9 gene editing of primary human myeloid cells and Mtb infection experiments, followed by analysis of immunological and metabolic profiles, in order to define their roles in TB disease. 2) Point-of-care biomarkers to identify Mtb-exposed individuals at high risk of developing TB disease: Following previous studies on TB biomarkers and COVID-19 diagnostics, the lab leverages international collaborations and systems biology approaches to discover and validate easy-to-use biomarkers to identify individuals at high risk of progression to TB. The studies aim to down-select biomarkers with high accuracy for translation into point-of-care and near-patient prognostic biomarkers in diverse populations for active case finding, including those with other co-infections. 3) T cell immunity to SARS-CoV-2 and Mtb: The Severe Acute Respiratory Syndrome of Coronavirus-2 (SARS-CoV-2) and Mtb are the two leading causes of mortality from infectious diseases globally. Failure to contain SARS-CoV-2 can be a result of the evolution of escape mutations that evade T cell responses. Similarly, in TB, the activation states and memory phenotypes of T cells can determine the quality of adaptive immunity against Mtb. Therefore, the quality and breadth of T cell responses are critical determinants of protection against both pathogens. It is unclear how the co-infections with Mtb and SARS-CoV-2 influence the inflammatory milieu and antigen-specific T cell responses that correlate with protection from progression to TB disease or severe COVID-19. The Suliman lab studies antigen-specific T cell immunity to SARS-CoV-2 and Mtb in the context of co-infection with the two pathogens, evolving SARS-CoV-2 variants, and COVID-19 vaccine rollout.
See More
Suliman
Sara Suliman
Assistant Professor
This is some text inside of a div block.
No items found.
Associate
Hugo Gonzalez Velozo
The Gonzalez-Velozo Lab delves into the molecular mechanisms driving metastasis and tumor-host interactions. It is committed to advancing the understanding of cancer metastasis and the tumor microenvironment, particularly elucidating insights from the tumor-immune interface. The lab's studies integrate diverse disciplines, including cancer research, genomics, molecular biology, immunology, and computational biology. They include the first systematic study of human metastases at single-cell resolution and collaborations in areas such as crosstalk within the metastatic niche, tumor adaptation under stress in metastasis, and cancer immunology. Ongoing projects involve the study of chromatin accessibility at single-cell resolution, combined with single-cell transcriptomics, to define and characterize the gene regulatory networks (regulomes) that foster brain metastases from carcinomas in patients. Additionally, they are working on generating tumor-host assembloids, a novel tool that combines brain organoids derived from iPSCs with tumor organoids from brain metastases, aiming to study in vitro complex cellular circuits while preserving human biology in the system. Their work lies in the conceptual framework that metastatic fitness is intimately linked to cellular circuits and cell crosstalk within the metastatic niche, impacting both the composition and functional states of the tumor microenvironment.
See More
Velozo
Hugo Gonzalez Velozo
Assistant Adjunct Professor
Fatemeh (Flora) Momen-Heravi
fatemeh-flora-momen-heravi

The Momen-Heravi Lab strives to perform innovative science to understand the biological mechanisms underlying carcinogenesis mediated by tumor immune cell interactions and exploit tumor vulnerabilities to cure cancer. Their research bridges oral diseases and molecular immunology, investigating how mucosal barrier immunity, myeloid and lymphoid cell dysregulation, and microbe–host interactions shape both periodontal disease and cancer biology.

Javid Moslehi
javid-moslehi

The Moslehi Lab is a basic and translational research laboratory focused on signal transduction in the myocardium and vasculature. Our clinical and research interests fall under the burgeoning field of cardio-oncology. In the past our group initially defined new clinical syndromes of immune checkpoint inhibitor (ICI)-associated myocarditis and other ICI-associated cardiovascular toxicities, including pericarditis and vasculitis. Our interest in "cardio-immunology" has recently expanded to other inflammatory cardiomyopathies, including giant cell myocarditis, acute cellular rejection (ACR) following cardiac transplantation, and other forms of myocarditis.

Renuka Nayak
renuka-nayak

The Nayak Lab studies human gut microbiota and its role in the treatment of autoimmune diseases like rheumatoid arthritis. Specifically, we are interested in the reciprocal interactions between human gut microbes and the drugs used to treat autoimmune disease. Drugs commonly used to modulate the immune system in rheumatology have off target effects on microbes despite the fact that they were originally developed to target host cells. These off-target effects on microbes may have downstream effects on the host immune system, since it now well-established that microbiota can influence host immunity. These microbes harbor microbial enzymes to metabolize these drugs, thereby altering pharmacokinetics and influencing the ability of the drug to modulate host immunity. Thus, we seek to uncover under-appreciated roles for the microbiome in the treatment of autoimmune disease.

Elena Nedelcu
elena-nedelcu

The Nedelcu Lab's primary focus is cellular therapies and transfusion medicine. Our current project in clinical transfusion medicine is to elucidate the mechanism of allergic transfusion reactions.

Stephen Nishimura
stephen-nishimura

The Nishimura Lab's research spans basic, translational and clinical research themes. Their clinical/translational projects focus on the use of biospecimens and correlation of morphometry with gene expression and genetic variation in disease-susceptibility. Basic research themes focus-on the regulation of cell-extracellular matrix interactions by integrins, the role of host-pathogen interactions in innate and adaptive immunity in the evolution of fibroinflammatory diseases, the activation and function of TGF-beta in epithelial-mesenchymal-immune cell interactions and in tumor immunobiology. Current projects include the role of TGF-beta and inflammation in fibroinflammatory diseases, genetic variation in regulation of TGF-beta activation in COPD, the role of paracrine TGF-beta activation by mesenchymal cells in the regulation of innate and adaptive immunity, the role of autophagy in lung injury and repair, the role of integrin structure in TGF-P activation and the role of TGF-beta in tumor immunity.

Philip Norris
philip-norris

The Norris Lab's research interests focus on how the human immune system responds to viral infections and transfusion. Our early efforts centered on defining how HIV-specific CD4+ T cells contribute to control of viral infection. A second area of interest has been defining the earliest events of viral infections through study of subjects with HIV, West Nile virus, and hepatitis viruses. Some of our more recent projects include understanding how blood transfusion affects the immune system and modulates immune responses in transfusion recipients, including the role extracellular vesicles play in immune modulation.

Melanie Ott
melanie-ott

The Ott Lab is interested in how viruses interact with the host cell. Through these interactions we hope to gain new insight into cellular processes and the viral life cycle. Currently, we focus on three pathogens-the human immunodeficiency virus (HIV-1), Zika virus, and the hepatitis C virus (HCV)-and three cellular processes-lipid droplets, transcriptional elongation, and immune reprogramming. We recently developed several human 3D organoid models in the lab and study how viruses spread in these models using single-cell RNA-Seq. Our research is relevant for efforts to eradicate HIV from patients, to alleviate fatty liver disease in chronic HCV infection, and suppress uncontrolled immune activation in virally infected patients or patients with autoimmunity.

Karin Pelka
karin-pelka

The Pelka lab studies the cellular interactions that shape immune responses in human tumors, focusing on how these responses are regulated. Immune cells cannot execute their function in isolation, but require interactions with other immune and non-immune cells. We still only understand a very small number of these communication networks. Using a combination of large-scale genomic analyses and tissue imaging approaches, we have identified hubs in tumor tissues where tumor cells come into close contact with immune cells. By characterizing and perturbing the cells in these hubs, and the gene networks that are turned on in these cells, we aim to uncover novel ways to harness the immune system in the fight against cancer.

Tien Peng
tien-peng

The Peng Lab is interested in how supportive niche cells modify the regenerative capacity of the stem cell, with the goal of deciphering cellular crosstalk that drives adaptive tissue regeneration. Our lab utilizes the lung as a model organ due to its immense cellular diversity and architectural complexity. Adult solid organs are composed of diverse cellular compartments with complex 3D organization that informs specific functions, with varying degrees of regenerative capacity in response to injury and tissue inflammation. While resident tissue stem cells play an important role in the regenerative process, they are located within a cellular ecosystem composed of various cell types that regulate stem cell function, including immune cells.

Rushika Perera
rushika-perera

In the Perera Lab we study the mechanisms of autophagy-lysosome activation and how this organelle system contributes to cellular reprogramming in cancer. Autophagy and the lysosome function to capture and recycle diverse cellular and extracellular macromolecules. Our prior studies have identified transcription circuits essential for maintenance of autophagy and lysosome biogenesis in pancreatic cancer and our ongoing work focuses on identifying unique features and functions of these organelles in promoting tumor growth, immune evasion, metastasis and therapy resistance. We use a combination of techniques including organelle purification and biochemistry, immuno-fluorescence imaging, proteomics and metabolomics in cell lines, primary culture systems and genetically engineered mouse tumor models, to address how changes in organelle function in cancer cells and immune cells promote disease.

B. Matija Peterlin
b-matija-peterlin

The Peterlin Lab uses molecular biology, immunology, virology and genetics to tackle intractable immunodeficiencies, be they the bare lymphocyte syndrome or AIDS. These approaches also find resonance in autoimmunity and cancer. In the process, these diseases and their pathogens educate us about human biology and evolution. Indeed, new paradigms in genomic stability, transcription, transport and intracellular traffic have been forthcoming from these studies. Our ultimate goals are to use this knowledge of basic molecular mechanisms to cure human diseases.

Angela Phillips
angela-phillips

The Phillips Lab is broadly interested in how the molecular properties of viral proteins and antibodies constrain their evolution and co-evolution. Viral proteins and antibodies acquire amino acid substitutions at a rate orders of magnitude above most eukaryotic proteins. These substitutions can have pleiotropic consequences on protein stability, folding, and function. The lab is developing high-throughput evolution and phenotyping assays to determine how these properties, and trade-offs bettheyen them, constrain and potentiate the evolution of viral proteins and antibodies, and how this varies bettheyen distinct selection environments. These experimental platforms will enable them to (1) determine key constraints on protein evolution, (2) predict the emergence of new viral variants, and (3) design therapeutic strategies that are refractory to the development of resistance.