Overview
We are interested in understanding the mechanisms that cancers have evolved to suppress the generation of tumor antigen-specific immune responses and how this knowledge can be exploited for the development of novel and more effective cancer immunotherapy strategies. This work involves the utilization of both autochthonous transgenic tumor model systems as well as clinical specimens to develop novel strategies to enhance the efficacy of immunotherapies while also developing predictive biomarkers to better guide the management of cancer patients with these agents. We strive to translate our understanding of the fundamental biochemical and metabolic pathways within the tumor microenvironment that are critical for driving immune evasion and resistance into early phase clinical trial testing.
Our work utilizes a variety of techniques and methodologies that span the breadth of basic biological research. This work integrates studies based on both 1) transgenic mouse tumor models that are monitored using bioluminescence and micro-CT imaging and 2) a variety of clinical specimens.
Our work utilizes a variety of techniques and methodologies that span the breadth of basic biological research. This work integrates studies based on both 1) transgenic mouse tumor models that are monitored using bioluminescence and micro-CT imaging and 2) a variety of clinical specimens.
Our current areas of focus include:
- Investigating mechanisms of adaptive or acquired immunotherapy resistance in cancer
- Studying the relationship between EMT pathways and immunotherapy resistance.
- Elucidating mechanisms of dendritic cell tolerization in the tumor microenvironment and how these processes may contribute to immunotherapy resistance
- Development of novel pharmacologic and genetic strategies to overcome immunotherapy resistance
- Investigating mechanisms contributing to select immunotherapy-associated toxicities
Office Hours
Clinic Hours: Thursdays, 8:30 AM - 5:00 PM
Academic Office Hours: by appointment
Academic Office Hours: by appointment
Current Appointments & Affiliations
Adjunct Associate Professor in the Department of Medicine
·
2025 - Present
Medicine, Medical Oncology,
Medicine
Assistant Professor of Pharmacology and Cancer Biology
·
2018 - Present
Pharmacology & Cancer Biology,
Basic Science Departments
Recent Publications
Gli2 Facilitates Tumor Immune Evasion and Immunotherapeutic Resistance by Coordinating Wnt Ligand and Prostaglandin Signaling.
Journal Article Cancer Res · February 19, 2025 Therapeutic resistance to immune checkpoint blockade has been commonly linked to the process of mesenchymal transformation (MT) and remains a prevalent obstacle across many cancer types. An improved mechanistic understanding for MT-mediated immune evasion ... Full text Link to item CiteManagement of Microsatellite Instability High (MSI-H) Gastroesophageal Adenocarcinoma.
Journal Article J Gastrointest Cancer · June 2024 BACKGROUND: Gastroesophageal cancer is a major cause of cancer-related mortality worldwide. Treatment of both early stage and advanced disease remains highly reliant on cytotoxic chemotherapy. About 4-24% of gastroesophageal cancers are microsatellite inst ... Full text Link to item CiteA lactate-SREBP2 signaling axis drives tolerogenic dendritic cell maturation and promotes cancer progression.
Journal Article Sci Immunol · May 10, 2024 Conventional dendritic cells (DCs) are essential mediators of antitumor immunity. As a result, cancers have developed poorly understood mechanisms to render DCs dysfunctional within the tumor microenvironment (TME). After identification of CD63 as a specif ... Full text Link to item CiteRecent Grants
The Duke Preparing Research scholars In bioMEdical sciences (PRIME): Cancer Research Program
ResearchPreceptor · Awarded by National Cancer Institute · 2023 - 2028Lyell LYL845 (Melanoma)
Clinical TrialPrincipal Investigator · Awarded by Lyell Immunopharma, Inc. · 2025 - 2028Characterizing and Targeting the Dendritic Cell MerTK-NR4A1 Signaling Axis to Overcome Cancer Immunotherapy Resistance
ResearchPrincipal Investigator · Awarded by G. Harold & Leila Y. Mathers Foundation · 2024 - 2027View All Grants
Education, Training & Certifications
Baylor, College of Medicine ·
2006
M.D.
Baylor, College of Medicine ·
2004
Ph.D.