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Title

Mice deficient in CD38 develop an attenuated form of collagen type II-induced arthritis

AuthorsPostigo, Jorge; Iglesias, Marcos ; Merino, Ramón ; Merino, Jesús
Issue Date2012
PublisherPublic Library of Science
CitationPLoS ONE 7(3): e33534 (2012)
AbstractCD38, a type II transmembrane glycoprotein expressed in many cells of the immune system, is involved in cell signaling, migration and differentiation. Studies in CD38 deficient mice (CD38 KO mice) indicate that this molecule controls inflammatory immune responses, although its involvement in these responses depends on the disease model analyzed. Here, we explored the role of CD38 in the control of autoimmune responses using chicken collagen type II (col II) immunized C57BL/6-CD38 KO mice as a model of collagen-induced arthritis (CIA). We demonstrate that CD38 KO mice develop an attenuated CIA that is accompanied by a limited joint induction of IL-1β and IL-6 expression, by the lack of induction of IFNγ expression in the joints and by a reduction in the percentages of invariant NKT (iNKT) cells in the spleen. Immunized CD38 KO mice produce high levels of circulating IgG1 and low of IgG2a anti-col II antibodies in association with reduced percentages of Th1 cells in the draining lymph nodes. Altogether, our results show that CD38 participates in the pathogenesis of CIA controlling the number of iNKT cells and promoting Th1 inflammatory responses.
DescriptionThis is an open-access article distributed under the terms of the Creative Commons Attribution License.-- et al.
Publisher version (URL)http://dx.doi.org/10.1371/journal.pone.0033534
URIhttp://hdl.handle.net/10261/48935
DOI10.1371/journal.pone.0033534
ISSN1932-6203
Appears in Collections:(IPBLN) Artículos
(IBBTEC) Artículos
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