TY - CHAP M1 - Book, Section TI - Macrophages and Lymphocytes in the Lung A1 - Traber, Katrina E. A1 - Mizgerd, Joseph P. A1 - Center, David M. A2 - Grippi, Michael A. A2 - Antin-Ozerkis, Danielle E. A2 - Dela Cruz, Charles S. A2 - Kotloff, Robert M. A2 - Kotton, Camille Nelson A2 - Pack, Allan I. PY - 2023 T2 - Fishman’s Pulmonary Diseases and Disorders, 6e AB - This chapter describes the macrophage and lymphocyte populations present in the lung, in both the absence and presence of inflammatory stimuli. This distinction may be artificial, as the lung actively interfaces with the aero-environment and thus is constantly exposed to stimuli. While we describe the phenotypes themselves, other chapters cover the inflammatory processes and migratory stimuli that change the inflammatory cell complexion in the lung in disease states. Of greatest importance is to note that there is marked heterogeneity of cell surface markers, secretory products, and macrophage and lymphocyte functions in the lung that, together, represent the overall responses to stimuli and pathogens and the resolution of inflammation. We defer discussion of disease states to other chapters, only peripherally referring to unique roles of specific macrophage or lymphocyte subtypes when important to understanding the phenotypes. Our approach is to divide the chapter into descriptions of leukocyte subtypes of the innate (macrophages and lymphocytes) and adaptive (lymphocytes) immune systems, recognizing that there are many other ways to classify the inflammatory cell populations in the lung. Innate and adaptive immunity are described in detail in other chapters. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/23 UR - accessmedicine.mhmedical.com/content.aspx?aid=1194947040 ER -