The regulation of inflammation by innate and adaptive lymphocytes
DA Cronkite, TM Strutt - Journal of immunology research, 2018 - Wiley Online Library
DA Cronkite, TM Strutt
Journal of immunology research, 2018•Wiley Online LibraryInflammation plays an essential role in the control of pathogens and in shaping the ensuing
adaptive immune responses. Traditionally, innate immunity has been described as a rapid
response triggered through generic and nonspecific means that by definition lacks the ability
to remember. Recently, it has become clear that some innate immune cells are
epigenetically reprogrammed or “imprinted” by past experiences. These “trained” innate
immune cells display altered inflammatory responses upon subsequent pathogen …
adaptive immune responses. Traditionally, innate immunity has been described as a rapid
response triggered through generic and nonspecific means that by definition lacks the ability
to remember. Recently, it has become clear that some innate immune cells are
epigenetically reprogrammed or “imprinted” by past experiences. These “trained” innate
immune cells display altered inflammatory responses upon subsequent pathogen …
Inflammation plays an essential role in the control of pathogens and in shaping the ensuing adaptive immune responses. Traditionally, innate immunity has been described as a rapid response triggered through generic and nonspecific means that by definition lacks the ability to remember. Recently, it has become clear that some innate immune cells are epigenetically reprogrammed or “imprinted” by past experiences. These “trained” innate immune cells display altered inflammatory responses upon subsequent pathogen encounter. Remembrance of past pathogen encounters has classically been attributed to cohorts of antigen‐specific memory T and B cells following the resolution of infection. During recall responses, memory T and B cells quickly respond by proliferating, producing effector cytokines, and performing various effector functions. An often‐overlooked effector function of memory CD4 and CD8 T cells is the promotion of an inflammatory milieu at the initial site of infection that mirrors the primary encounter. This memory‐conditioned inflammatory response, in conjunction with other secondary effector T cell functions, results in better control and more rapid resolution of both infection and the associated tissue pathology. Recent advancements in our understanding of inflammatory triggers, imprinting of the innate immune responses, and the role of T cell memory in regulating inflammation are discussed.
