Open AccessInterleukin-22 Drives Endogenous Thymic Regeneration in Mice
Author(s) -
Jarrod A. Dudakov,
Alan M. Hanash,
Robert R. Jenq,
Lauren Young,
Arnab Ghosh,
Natalie V. Singer,
Mallory L. West,
Odette M. Smith,
Amanda M. Holland,
Jennifer J. Tsai,
Richard L. Boyd,
Marcel R.M. van den Brink
Publication year - 2012
Publication title -
science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 12.556
H-Index - 1186
eISSN - 1095-9203
pISSN - 0036-8075
DOI - 10.1126/science.1218004
Subject(s) - endogeny , regeneration (biology) , microbiology and biotechnology , biology , chemistry , neuroscience , immunology , endocrinology
IL-22 Protects the Thymus One of the side effects associated with radiation treatment and some types of chemotherapy is damage to the thymus. Immunological T cells develop in the thymus, and so damage to this organ results in immunodeficiency and increased susceptibility to infectious disease. Although the organ eventually recovers, therapies that speed this recovery process are of interest.Dudakovet al. (p.91 , published online 1 March; see the Perspective byBhandoola and Artis ) now show in mice that interleukin-22 (IL-22) production in the thymus is increased in response to radiation damage and that this cytokine promotes thymic repair. After radiation treatment, IL-23 production by thymic dendritic cells induced IL-22 secretion by a population of radio-resistant innate lymphoid cells. IL-22 appeared to mediate its effects by promoting the survival and proliferation of thymic epithelial cells.
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