NDLI: Prolactin is not required for the development of severe chronic experimental autoimmune encephalomyelitis.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Abou-Hamdan, Mhamad Pedotti, Rosetta Costanza, Massimo Musio, Silvia Binart, Nadine
Description	Country affiliation: Italy Author Affiliation: Costanza M ( Neuroimmunology and Neuromuscular Disorder Unit, Foundation IRCCS Neurological Institute Carlo Besta, 20133 Milan, Italy.)
Abstract	Predominance of multiple sclerosis (MS) in women, reductions of disease flares during pregnancy, and their increase in the postpartum period have suggested a hormonal influence on MS activity. The hormone prolactin (PRL) has long been debated as a potential immune-stimulating factor in several autoimmune disorders, including MS and its animal model experimental autoimmune encephalomyelitis (EAE). However, to date, no data clearly ascribe a pathogenic role to PRL in these diseases. Using PRL receptor-deficient (Prlr(-/-)) and PRL-deficient (Prl(-/-)) mice, we show that PRL plays a redundant role in the development of chronic EAE. In Prlr(-/-) and Prl(-/-) mice, EAE developed with a delayed onset compared with littermate control mice, but with full clinical severity. In line with the clinical outcome, T cell proliferation and production of IFN-Î³, IL-17A, and IL-6 induced by myelin Ag were delayed in Prlr(-/-) and Prl(-/-) mice. Ag-specific IgG Ab responses were not affected by PRLR or PRL deficiency. We also show that mouse lymph node cells and purified CD4(+) T cells express transcript for Prlr, but not for Prl. These results reveal that PRL does not play a central role in the development of chronic EAE and optimal Th1 and Th17 responses against myelin. Moreover, they also rule out a possible contribution of PRL secreted by immune cells to the modulation of autoreactive T cell response in this model.
ISSN	00221767
e-ISSN	15506606
Journal	The Journal of Immunology
Issue Number	5
Volume Number	191
Language	English
Publisher	The American Association of Immunologists
Publisher Date	2013-09-01
Publisher Place	United States
Access Restriction	Open
Subject Keyword	Encephalomyelitis, Autoimmune, Experimental Immunology Prolactin Animals Metabolism Pathology Lymphocyte Activation Mice Mice, Inbred C57bl Mice, Knockout Real-time Polymerase Chain Reaction Research Support, Non-u.s. Gov't Discipline Immunology
Content Type	Text
Resource Type	Article
Subject	Immunology and Allergy Immunology

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