Exhausted CD4+ T Cells during Malaria Exhibit Reduced mTORc1 Activity Correlated with Loss of T-bet Expression
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چکیده
منابع مشابه
CD4+ T Cells are Exhausted and Show Functional Defects in Chronic Lymphocytic Leukemia
Background: Chronic lymphocytic leukemia (CLL) is the most common adult leukemia in the western world. This health problem is caused due to the accumulation of mature B-lymphocytes in the peripheral blood and bone marrow. In the course of cancer, CD4+ T cells become “exhausted” and characterized with poor effector functions and the expression of multiple inhibitory receptors. Objective: To inve...
متن کاملCCR5+T-bet+FoxP3+ Effector CD4 T Cells Drive Atherosclerosis.
RATIONALE CD4 T cells are involved in the pathogenesis of atherosclerosis, but atherosclerosis-specific CD4 T cells have not been described. Moreover, the chemokine(s) that regulates T-cell trafficking to the atherosclerotic lesions is also unknown. OBJECTIVE In Apoe(-/-) mice with mature atherosclerotic lesions (5 months of high fat diet), we find that most aortic T cells express CCR5 and in...
متن کاملEvaluation of Exhausted Regulatory T Cells in Preeclampsia
Background: The development of a maternal immune response to fetal antigens and deficiency in regulatory T-cells (Tregs) may lead to preeclampsia. A plausible explanation for the reduced Treg cell function in women with preeclampsia is the presence of exhausted Treg cells which express CD279 or programmed cell death receptor-1 (PD-1), a negative regulatory molecule associated w...
متن کاملExpression of T-bet by CD4 T cells is essential for resistance to Salmonella infection.
Despite the recognized role of the T-bet transcription factor in the differentiation of Th1 cells, T-bet-deficient mice can develop small numbers of IFN-gamma-producing CD4 T cells. Although these are not sufficient to allow normal handling of some pathogens, T-bet-deficient mice do resolve infection with the intracellular pathogen Listeria monocytogenes. In contrast, we report that expression ...
متن کاملCD4+ T cells with an activated and exhausted phenotype distinguish immunodeficiency during aviremic HIV-2 infection
OBJECTIVE HIV type 2 (HIV-2) represents an attenuated form of HIV, in which many infected individuals remain 'aviremic' without antiretroviral therapy. However, aviremic HIV-2 disease progression exists, and in the current study, we therefore aimed to examine if specific pathological characteristics of CD4 T cells are linked to such outcome. DESIGN HIV-seronegative (n = 25), HIV type 1 (HIV-1...
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ژورنال
عنوان ژورنال: The Journal of Immunology
سال: 2020
ISSN: 0022-1767,1550-6606
DOI: 10.4049/jimmunol.2000450