Journal
IMMUNITY
Volume 55, Issue 5, Pages 749-780Publisher
CELL PRESS
DOI: 10.1016/j.immuni.2022.04.013
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Funding
- ALSAC at St. Jude Children's Research Hospital (SJCRH)
- Center for Influenza Vaccine Research for High-Risk Populations (CIVR-HRP) [75N93019C00052]
- National Institute of Allergy and Infectious Diseases (NIAID) [3U01AI144616-02S1, HHSN272201400006C]
- Ruth L. Kirschstein National Research Service Award (NRSA) Individual Postdoctoral Fellowship (NRSA-NIAID) [F32AI157296]
- SJCRH Center of Excellence for Influenza Research and Surveillance
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The lungs are constantly exposed to various substances and pathogens, thus requiring regulation of immune responses in the respiratory tract with understanding of the interactions between structural and immune cells. Studying immune responses in the lungs is crucial for treating pulmonary diseases and infections, as well as next-generation vaccine design.
The lungs are constantly exposed to inhaled debris, allergens, pollutants, commensal or pathogenic microorganisms, and respiratory viruses. As a result, innate and adaptive immune responses in the respiratory tract are tightly regulated and are in continual flux between states of enhanced pathogen clearance, immune-modulation, and tissue repair. New single-cell-sequencing techniques are expanding our knowledge of airway cellular complexity and the nuanced connections between structural and immune cell compartments. Understanding these varied interactions is critical in treatment of human pulmonary disease and infections and in next-generation vaccine design. Here, we review the innate and adaptive immune responses in the lung and airways following infection and vaccination, with particular focus on influenza virus and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The ongoing SARS-CoV-2 pandemic has put pulmonary research firmly into the global spotlight, challenging previously held notions of respiratory immunity and helping identify new populations at high risk for respiratory distress.
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