PMID- 19079211 OWN - NLM STAT- MEDLINE DCOM- 20090409 LR - 20230203 IS - 1935-3456 (Electronic) IS - 1933-0219 (Linking) VI - 1 IP - 6 DP - 2008 Nov TI - Division of labor between dendritic cell subsets of the lung. PG - 442-50 LID - 10.1038/mi.2008.39 [doi] AB - Dendritic cells (DCs) are a heterogenous population of antigen-presenting cells, of which conventional DCs and plasmacytoid DCs are the main subsets. Like DC subsets in the central lymphoid organs, DC subsets in the lungs exert specific functions that can be associated with distinct expression of endocytic receptors, cell-surface molecules, and anatomical location within the lung. In recent years, DC populations are increasingly split up into a seemingly endless number of defined sub-populations. We argue that this is not a "stamp-collecting" activity but essential for a deeper understanding of the immune response to pathogens like respiratory viruses or tolerance to harmless antigens. In homeostatic conditions, a fine-tuned balance exists between the various functions of lung DC subsets, which is necessary for maintaining immune homeostasis in the lung. However, infectious or inflammatory conditions can profoundly alter the functions of steady-state DC subsets and recruit inflammatory type DCs to the lung. This might be important for clearing the inflicting pathogenic stimulus, but could at the same time also be involved in causing immune pathology. FAU - GeurtsvanKessel, C H AU - GeurtsvanKessel CH AD - Department of Pulmonary Medicine, Erasmus University Medical Centre, Rotterdam, The Netherlands. FAU - Lambrecht, B N AU - Lambrecht BN LA - eng PT - Journal Article PT - Review DEP - 20080917 PL - United States TA - Mucosal Immunol JT - Mucosal immunology JID - 101299742 RN - 0 (Antigens) SB - IM MH - Animals MH - Antigens/immunology MH - Asthma/immunology MH - Dendritic Cells/cytology/*immunology/*metabolism MH - Humans MH - Lung/*cytology/*immunology MH - Respiratory Tract Infections/immunology/virology RF - 110 EDAT- 2008/12/17 09:00 MHDA- 2009/04/10 09:00 CRDT- 2008/12/17 09:00 PHST- 2008/12/17 09:00 [entrez] PHST- 2008/12/17 09:00 [pubmed] PHST- 2009/04/10 09:00 [medline] AID - S1933-0219(22)01704-4 [pii] AID - 10.1038/mi.2008.39 [doi] PST - ppublish SO - Mucosal Immunol. 2008 Nov;1(6):442-50. doi: 10.1038/mi.2008.39. Epub 2008 Sep 17.