Artikel ; Online: Regulation of Retinoic Acid Receptor Beta by Interleukin-15 in the Lung during Cigarette Smoking and Influenza Virus Infection.
American journal of respiratory cell and molecular biology
2015 Band 53, Heft 6, Seite(n) 822–833
Abstract: ... its relation to IL-15 in the lung during cigarette smoke (CS) exposure and influenza virus infection. In vivo ... and influenza virus infection. IL-15 specifically down-regulates RARβ expression, and RARβ may play ... studies show that IL-15 down-regulates RARβ in macrophages via IL-15Rα signaling during influenza virus ...
| Abstract | Virus-induced exacerbations often lead to further impairment of lung function in chronic obstructive pulmonary disease. IL-15 is critical in antiviral immune responses. Retinoic acid (RA) signaling plays an important role in tissue maintenance and repair, particularly in the lung. We studied RA signaling and its relation to IL-15 in the lung during cigarette smoke (CS) exposure and influenza virus infection. In vivo studies show that RA signaling is diminished by long-term CS exposure or influenza virus infection alone, which is further attenuated during infection after CS exposure. RA receptor β (RARβ) is specifically decreased in the lung of IL-15 transgenic (overexpression; IL-15Tg) mice, and a greater reduction in RARβ is found in these mice compared with wild-type (WT) mice after infection. RARβ is increased in IL-15 knockout (IL-15KO) mice compared with WT mice after infection, and the additive effect of CS and virus on RARβ down-regulation is diminished in IL-15KO mice. IL-15 receptor α (IL-15Rα) is increased and RARβ is significantly decreased in lung interstitial macrophages from IL-15Tg mice compared with WT mice. In vitro studies show that IL-15 down-regulates RARβ in macrophages via IL-15Rα signaling during influenza virus infection. These studies suggest that RA signaling is significantly diminished in the lung by CS exposure and influenza virus infection. IL-15 specifically down-regulates RARβ expression, and RARβ may play a protective role in lung injury caused by CS exposure and viral infections. |
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| Mesh-Begriff(e) | Animals ; Cell Line ; Down-Regulation ; Gene Expression Regulation ; Humans ; Influenza, Human/immunology ; Influenza, Human/metabolism ; Interleukin-15/physiology ; Lung/immunology ; Lung/metabolism ; Mice, Inbred C57BL ; Mice, Knockout ; Receptors, Interleukin-15/metabolism ; Retinoid X Receptor beta/genetics ; Retinoid X Receptor beta/metabolism ; Retinoid X Receptor gamma/genetics ; Retinoid X Receptor gamma/metabolism ; Smoking/immunology ; Smoking/metabolism | |||||
| Chemische Substanzen | Interleukin-15 ; Receptors, Interleukin-15 ; Retinoid X Receptor beta ; Retinoid X Receptor gamma | |||||
| Sprache | Englisch | |||||
| Erscheinungsdatum | 2015-12 | |||||
| Erscheinungsland | United States | |||||
| Dokumenttyp | Journal Article ; Research Support, N.I.H., Extramural ; Research Support, U.S. Gov't, Non-P.H.S. | |||||
| ZDB-ID | 1025960-0 | |||||
| ISSN | 1535-4989 ; 1044-1549 | |||||
| ISSN (online) | 1535-4989 | |||||
| ISSN | 1044-1549 | |||||
| DOI | 10.1165/rcmb.2014-0448OC | |||||
| Signatur |
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| Datenquelle | MEDical Literature Analysis and Retrieval System OnLINE |
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