Judith A. Varner
朱迪思·瓦尔纳
PhD
Professor, Department of Pathology and Medicine; Associate Director for Basic Research病理与医学系教授；基础研究副主任
👥Biography 个人简介
Dr. Varner is a leading cancer biologist whose research illuminates how the tumor microenvironment, particularly macrophages and myeloid cells, supports PDAC immune evasion and drug resistance. Her work on PI3K-gamma as a macrophage-intrinsic immune switch has led to clinical trials of PI3K inhibitors in pancreatic cancer.
🧪Research Fields 研究领域
🎓Key Contributions 主要贡献
PI3K-gamma Macrophage Switch
Discovered that PI3K-gamma acts as a molecular switch controlling macrophage polarization between immunostimulatory and immunosuppressive states, identifying PI3K-gamma inhibition as a strategy to remodel the PDAC tumor microenvironment.
Myeloid Immunosuppression in PDAC
Characterized how pancreatic tumor-associated macrophages and myeloid-derived suppressor cells establish an immunosuppressive barrier to T cell infiltration, providing mechanistic basis for myeloid-targeting immunotherapy combinations.
Representative Works 代表性著作
PI3Kγ Is a Molecular Switch that Controls Immune Suppression
Nature (2016)
Landmark study demonstrating PI3K-gamma governs macrophage polarization and tumor immunosuppression, establishing PI3K-gamma inhibitors as immunotherapy agents.
Macrophage PI3Kγ Drives Pancreatic Ductal Adenocarcinoma Progression
Cancer Discovery (2019)
Showed that macrophage-intrinsic PI3K-gamma signaling promotes PDAC progression and that its inhibition synergizes with checkpoint blockade.
🏆Awards & Recognition 奖项与荣誉
📄Data Sources 数据来源
Last updated: 2026-01-15 | All information from publicly available academic sources
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