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Critical Reviews™ in Immunology
Импакт фактор: 1.352 5-летний Импакт фактор: 3.347 SJR: 0.657 SNIP: 0.55 CiteScore™: 2.19

ISSN Печать: 1040-8401
ISSN Онлайн: 2162-6472

Выпуски:
Том 39, 2019 Том 38, 2018 Том 37, 2017 Том 36, 2016 Том 35, 2015 Том 34, 2014 Том 33, 2013 Том 32, 2012 Том 31, 2011 Том 30, 2010 Том 29, 2009 Том 28, 2008 Том 27, 2007 Том 26, 2006 Том 25, 2005 Том 24, 2004 Том 23, 2003 Том 22, 2002 Том 21, 2001 Том 20, 2000 Том 19, 1999 Том 18, 1998 Том 17, 1997 Том 16, 1996 Том 15, 1995 Том 14, 1994

Critical Reviews™ in Immunology

DOI: 10.1615/CritRevImmunol.v28.i4.40
pages 325-339

IL-7 and IL-15: Biology and Roles in T-Cell Immunity in Health and Disease

Hang-Rae Kim
Section of Rheumatology, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520 US.A; and Department of Anatomy, Seoul National University College of Medicine, Seoul, 110-799 Republic of Korea
Kyung-A Hwang
Section of Rheumatology, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520 USA
Sung-Hwan Park
Department of Internal Medicine, Catholic University of Korea, Seoul, 137-040 Republic of Korea
Insoo Kang
Section of Rheumatology, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520 USA

Краткое описание

Cytokines IL-7 and IL-15 are essentially involved in T-cell homeostasis. IL-7 is required for developing mature T cells in the thymus, whereas in the periphery, it promotes the survival of naïve and memory T cells by upregulating the antiapoptotic molecule Bcl-2. IL-15 potently induces the proliferation of memory CD8+ T cells independently of antigen and augments their effector function. Although IL-7 and IL-15 may help to defend the host against microorganisms and tumors by promoting T-cell immunity, dysregulated production of IL-7 and IL-15 can be harmful. In fact, increased levels of IL-15 in the circulation and inflamed tissues have been reported in various autoimmune diseases, including rheumatoid arthritis (RA), possibly contributing to the pathogenesis. In addition, IL-7, which may induce the production of inflammatory cytokines from T cells and monocytes, are found to be elevated in the joints of patients with RA. Here, we review what is currently known about the roles of these cytokines in T-cell immunity, in general, as well as in RA, in particular, focusing on recent discoveries.


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