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Shapiro A, Caballes NWS, Vera RN, Klein BS, Brennan PJ, Wu YF, Wiesner DL. Sensitization with Fungal Protease Allergen Establishes Long-Lived, Allergenic Th Cell Memory in the Lung. J Immunol 2024; 212:1420-1427. [PMID: 38488501 PMCID: PMC11037450 DOI: 10.4049/jimmunol.2300694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 02/26/2024] [Indexed: 04/17/2024]
Abstract
Allergic asthma is a chronic inflammatory disease that affects millions of individuals worldwide. Exposure to allergens produced by a variety of otherwise harmless microbes, including fungi, predisposes individuals to immunopathologic disease upon subsequent encounters with allergen. We developed a mouse model that employs a purified protease produced by Aspergillus (Asp f 13) to investigate the contributions of CD4+ Th cells to recurrent lung inflammation. Notably, memory CD4+ T cells enhanced the eosinophil response of sensitized/rechallenged animals. In addition, memory CD4+ T cells maintained allergenic features, including expression of GATA-binding protein 3 and IL-5. Th2 memory T cells persisted in the peribronchiolar interstitium of the lung and expressed markers of tissue residence, such as CD69, CCR8, and IL-33R. Lastly, we identified a peptide epitope contained within Asp f 13 and generated a peptide-MHC class II tetramer. Using these tools, we further demonstrated the durability and exquisite sensitivity of memory T cells in promoting lung eosinophilia. Our data highlight important features of memory T cells that strengthen the notion that memory T cells are principal drivers of eosinophilic disease in murine models of allergic sensitization and episodic airway inflammation.
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Affiliation(s)
- Abigail Shapiro
- Center for Immunity and Inflammation, NJ Medical School, Rutgers-The State University of New Jersey, Newark, NJ
- Department of Medicine, NJ Medical School, Rutgers-The State University of New Jersey, Newark, NJ
| | - Nicolas W S Caballes
- Center for Immunity and Inflammation, NJ Medical School, Rutgers-The State University of New Jersey, Newark, NJ
- Department of Medicine, NJ Medical School, Rutgers-The State University of New Jersey, Newark, NJ
| | - Rebecca N Vera
- Center for Immunity and Inflammation, NJ Medical School, Rutgers-The State University of New Jersey, Newark, NJ
- Department of Medicine, NJ Medical School, Rutgers-The State University of New Jersey, Newark, NJ
| | - Bruce S Klein
- Department of Pediatrics, University of Wisconsin-Madison, Madison, WI
- Department of Medicine, University of Wisconsin-Madison, Madison, WI
- Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, WI
| | - Paul J Brennan
- Center for Immunity and Inflammation, NJ Medical School, Rutgers-The State University of New Jersey, Newark, NJ
- Department of Medicine, NJ Medical School, Rutgers-The State University of New Jersey, Newark, NJ
| | - Yen-Fei Wu
- Center for Immunity and Inflammation, NJ Medical School, Rutgers-The State University of New Jersey, Newark, NJ
- Department of Medicine, NJ Medical School, Rutgers-The State University of New Jersey, Newark, NJ
| | - Darin L Wiesner
- Center for Immunity and Inflammation, NJ Medical School, Rutgers-The State University of New Jersey, Newark, NJ
- Department of Medicine, NJ Medical School, Rutgers-The State University of New Jersey, Newark, NJ
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