期刊
JOURNAL OF INVESTIGATIVE DERMATOLOGY
卷 141, 期 6, 页码 1522-+出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jid.2020.10.020
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资金
- Spanish Ministry of Economy and Competitiveness [SAF2017-82886-R]
- Comunidad de Madrid [S2017/BMD-3671-INFLAMUNE-CM]
- Ramon Areces Foundation Ciencias de la Vida y la Salud (XIX Concurso2018)
- Ayudas Fundacion BBVA a Equipos de Investigacion Cientfica (BIOMEDICINA2018)
- Fundacio Marato TV3 [122/C/2015]
- La Caixa Banking Foundation [HR1700016]
Allergic contact dermatitis is a common T-cell-mediated inflammatory skin disease characterized by red, itchy, swollen, and cracked skin. The absence of endogenous Gal-1 in CD8+ T cells plays a protective role in controlling the development of allergic contact dermatitis, as Gal-1-deficient mice display more sustained and severe skin inflammation after treatment.
Allergic contact dermatitis, also known as contact hypersensitivity, is a frequent T-cell-mediated inflammatory skin disease characterized by red, itchy, swollen, and cracked skin. It is caused by the direct contact with an allergen and/or irritant hapten. Galectin-1 (Gal-1) is a b-galactoside-binding lectin, which is highly expressed in several types of immune cells. The role of endogenous Gal-1 in contact hypersensitivity is not known. We found that Gal-1-deficient mice display more sustained and prolonged skin inflammation than wild-type mice after oxazolone treatment. Gal-1-deficient mice have increased CD8+ T cells and neutrophilic infiltration in the skin. After the sensitization phase, Gal-1-depleted mice showed an increased frequency of central memory CD8+ T cells and IFN-g secretion by CD8+ T cells. The absence of Gal-1 does not affect the migration of transferred CD4+ and CD8+ T cells from the blood to the lymph nodes or to the skin. The depletion of CD4+ T lymphocytes as well as adoptive transfer experiments demonstrated that endogenous expression of Gal-1 on CD8+ T lymphocytes exerts a major role in the control of contact hypersensitivity model. These data underscore the protective role of endogenous Gal-1 in CD8+ but not CD4+ T cells in the development of allergic contact dermatitis.
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