Antigen processing and presentation.

Antigen processing and presentation. Int Rev Cell Mol Biol. 2019;348:69-121 Authors: Kotsias F, Cebrian I, Alloatti A Abstract Dendritic cells are at the center of immune responses. They are defined by their ability to sense the environment, take up and process antigen, migrate to secondary lymphoid organs, where they present antigens to the adaptive immune system. In particular, they present lipids and proteins from pathogens, which they encountered in peripheral tissues, to T cells in order to induce a specific effector immune response. These complex antigens need to be broken down into peptides of a certain length in association with Major Histocompatibility Complex (MHC) molecules. Presentation of MHC/antigen complexes alongside costimulatory molecules and secretion of proinflammatory cytokines will induce an appropriate immune response. This interaction between dendritic cells and T cells takes place at defined locations within secondary lymphoid organs. In this review, we discuss the current knowledge and recent advances on the cellular and molecular mechanisms that underlie antigen processing and the subsequent presentation to T lymphocytes. PMID: 31810556 [PubMed - in process]
Source: International Review of Cell and Molecular Biology - Category: Cytology Authors: Tags: Int Rev Cell Mol Biol Source Type: research