PMID- 31810551 OWN - NLM STAT- MEDLINE DCOM- 20200415 LR - 20230721 IS - 1937-6448 (Print) IS - 1937-6448 (Linking) VI - 348 DP - 2019 TI - Dendritic cell subsets and locations. PG - 1-68 LID - S1937-6448(19)30067-X [pii] LID - 10.1016/bs.ircmb.2019.07.004 [doi] AB - Dendritic cells (DCs) are a unique class of immune cells that act as a bridge between innate and adaptive immunity. The discovery of DCs by Cohen and Steinman in 1973 laid the foundation for DC biology, and the advances in the field identified different versions of DCs with unique properties and functions. DCs originate from hematopoietic stem cells, and their differentiation is modulated by Flt3L. They are professional antigen-presenting cells that patrol the environmental interphase, sites of infection, or infiltrate pathological tissues looking for antigens that can be used to activate effector cells. DCs are critical for the initiation of the cellular and humoral immune response and protection from infectious diseases or tumors. DCs can take up antigens using specialized surface receptors such as endocytosis receptors, phagocytosis receptors, and C type lectin receptors. Moreover, DCs are equipped with an array of extracellular and intracellular pattern recognition receptors for sensing different danger signals. Upon sensing the danger signals, DCs get activated, upregulate costimulatory molecules, produce various cytokines and chemokines, take up antigen and process it and migrate to lymph nodes where they present antigens to both CD8 and CD4 T cells. DCs are classified into different subsets based on an integrated approach considering their surface phenotype, expression of unique and conserved molecules, ontogeny, and functions. They can be broadly classified as conventional DCs consisting of two subsets (DC1 and DC2), plasmacytoid DCs, inflammatory DCs, and Langerhans cells. CI - (c) 2019 Elsevier Inc. All rights reserved. FAU - Balan, Sreekumar AU - Balan S AD - The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States. Electronic address: sreekumar.balan@mssm.edu. FAU - Saxena, Mansi AU - Saxena M AD - The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States. FAU - Bhardwaj, Nina AU - Bhardwaj N AD - The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States; Parker Institute for Cancer Immunotherapy, San Francisco, CA, United States. LA - eng GR - R01 AI081848/AI/NIAID NIH HHS/United States PT - Journal Article PT - Review DEP - 20190903 PL - Netherlands TA - Int Rev Cell Mol Biol JT - International review of cell and molecular biology JID - 101475846 SB - IM MH - Animals MH - Dendritic Cells/*classification/*cytology/immunology MH - Humans OTO - NOTNLM OT - BDCA1 OT - BDCA2 OT - BDCA3 OT - CDc2 OT - DC subsets OT - Dendritic cell OT - LCs OT - SIRPa OT - XCR1 OT - cDC1 OT - infDC OT - pDC EDAT- 2019/12/08 06:00 MHDA- 2020/04/16 06:00 CRDT- 2019/12/08 06:00 PHST- 2019/12/08 06:00 [entrez] PHST- 2019/12/08 06:00 [pubmed] PHST- 2020/04/16 06:00 [medline] AID - S1937-6448(19)30067-X [pii] AID - 10.1016/bs.ircmb.2019.07.004 [doi] PST - ppublish SO - Int Rev Cell Mol Biol. 2019;348:1-68. doi: 10.1016/bs.ircmb.2019.07.004. Epub 2019 Sep 3.