Mucosal-Associated Invariant T Cells as a Possible Target to Suppress Secondary Infections at COVID-19

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mucosal-associated invariant T cells

© 2008 Huang et al. The Rockefeller University Press $30.00 J. Exp. Med. Vol. 205 No. 5 1201-1211 www.jem.org/cgi/doi/ 1201 10.1084/jem.20072579 Mucosal-associated invariant T cells (MAITs) are a unique “ innate ” T cell population that expresses an invariant mV 19 TCR in mice and the homologous hV 7.2 in humans ( 1 ). With the exception of preferential localization in the intestine, MAIT cell...

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Human Leptin Hormone Affects TNF-α Production in Mucosal-associated Invariant T Cells

Background and Aims: Mucosal-associated invariant T (MAIT) cells are striking lymphocyte population in the blood and their importance in immune responses is growing fast. The current study was conducted to evaluate leptin hormone effects on MAIT cell functions. Materials and Methods: Five healthy male donors in ages of 22-30 years were selected and peripheral blood mononuclear cells (PBMCs) ...

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Mucosal-Associated Invariant T (MAIT) Cells Are Impaired in Th17 Associated Primary and Secondary Immunodeficiencies

The recently described Mucosal Associated Invariant T (MAIT) cells mediate specific recognition of bacterial and fungal vitamin B2 metabolites. As innate T cells, they possess broad effector responses, including IFN- including Iproduction, that are comparable to conventional T cell responses. Immunodeficiencies associated with systemic Th17 deficiency may also be compounded by defects in MAIT i...

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Human Mucosal Associated Invariant T Cells Detect Bacterially Infected Cells

Control of infection with Mycobacterium tuberculosis (Mtb) requires Th1-type immunity, of which CD8+ T cells play a unique role. High frequency Mtb-reactive CD8+ T cells are present in both Mtb-infected and uninfected humans. We show by limiting dilution analysis that nonclassically restricted CD8+ T cells are universally present, but predominate in Mtb-uninfected individuals. Interestingly, th...

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B Cells Modulate Mucosal Associated Invariant T Cell Immune Responses

A common finding when measuring T cell immunity to enteric bacterial vaccines in humans is the presence of background responses among individuals before immunization. Yet the nature of these background responses remains largely unknown. Recent findings show the presence in uninfected individuals of mucosal associated invariant T (MAIT) cells that mount broad spectrum immune responses against a ...

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ژورنال

عنوان ژورنال: Frontiers in Immunology

سال: 2020

ISSN: 1664-3224

DOI: 10.3389/fimmu.2020.01896