Results 11 to 20 of about 15,293,201 (302)

CD4+ T Cells at the Center of Inflammaging [PDF]

open access: yesCell Metabolism, 2020
Bharath et al., 2020 report that CD4+ T lymphocytes from aged individuals exhibit defective mitochondrial autophagy, resulting in altered redox metabolism and upregulation of TH17 cytokines, which in turn may contribute to aging-associated chronic inflammation or "inflammaging." Of note, the antiaging drug metformin reverses this autophagy defect and ...
Kroemer, Guido, Zitvogel, Laurence
openaire   +2 more sources

The Era of Cytotoxic CD4 T Cells

open access: yesFrontiers in Immunology, 2022
In 1986, Mosmann and Coffman identified 2 functionally distinct subsets of activated CD4 T cells, Th1 and Th2 cells, being key in distinct T cell mediated responses. Over the past three decades, our understanding of CD4 T cell differentiation has expanded and the initial paradigm of a dichotomic CD4 T cell family has been revisited to accommodate a ...
Mara Cenerenti   +7 more
openaire   +4 more sources

CD4 T cell cooperation is required for the in vivo activation of CD4 T cells [PDF]

open access: yesInternational Immunology, 2009
We address here the role of CD4 T cell cooperation in the activation of CD4 T cells. Administration of aggregated hen egg lysozyme (HEL) without microbial adjuvant to BALB/c mice normally generates cytokine-producing CD4 T cells specific for the HEL major peptide, HEL(105-120), as well as CD4 T cells specific for HEL non-major peptides.
Nathan C, Peters   +3 more
openaire   +2 more sources

STAT5 and CD4+ T Cell Immunity [PDF]

open access: yesF1000Research, 2017
STAT5 plays a critical role in the development and function of many cell types. Here, we review the role of STAT5 in the development of T lymphocytes in the thymus and its subsequent role in the differentiation of distinct CD4+helper and regulatory T-cell subsets.
Owen, David L., Farrar, Michael A.
openaire   +2 more sources

Modulation of the CD8+-T-cell response by CD4+ CD25+ regulatory T cells in patients with Hepatitis B virus infection [PDF]

open access: yes, 2005
CD4+ CD25+ regulatory T cells have been shown to maintain peripheral tolerance against self and foreign antigens. In this study we analyzed the effect of circulating CD4+ CD25+ T cells on CD8+-T-cell responses of patients with chronic and resolved ...
Gotto, J   +19 more
core   +1 more source

Tracking Virus-Specific CD4+ T Cells during and after Acute Hepatitis C Virus Infection [PDF]

open access: yes, 2007
Background. CD4+ T cell help is critical in maintaining antiviral immune responses and such help has been shown to be sustained in acute resolving hepatitis C.
Paul Klenerman   +178 more
core   +2 more sources

First-in-human phase 1 study of IT1208, a defucosylated humanized anti-CD4 depleting antibody, in patients with advanced solid tumors

open access: yesJournal for ImmunoTherapy of Cancer, 2019
Background Transient CD4+ T cell depletion led to the proliferation of tumor-specific CD8+ T cells in the draining lymph node and increased infiltration of PD-1+CD8+ T cells into the tumor, which resulted in strong anti-tumor effects in tumor-bearing ...
Kohei Shitara   +20 more
doaj   +1 more source

CD4+ regulatory T cells

open access: yesCurrent Opinion in Immunology, 2001
There is now compelling evidence that CD4(+) T cells that specialize in the suppression of immune responses play a key role in the control of immune pathology. Recently, there have been a number of reports that have provided information on the generation of CD4(+) regulatory T cells in the thymus and in the periphery.
Read, S, Powrie, F
openaire   +3 more sources

Rapid turnover of effector-memory CD4(+) T cells in healthy humans [PDF]

open access: yes, 2004
Memory T cells can be divided into central-memory (T(CM)) and effector-memory (T(EM)) cells, which differ in their functional properties. Although both subpopulations can persist long term, it is not known whether they are maintained by similar ...
Peter C.L. Beverley   +26 more
core   +1 more source

Accelerated in vivo proliferation of memory phenotype CD4+ T-cells in human HIV-1 infection irrespective of viral chemokine co-receptor tropism. [PDF]

open access: yes, 2013
CD4(+) T-cell loss is the hallmark of HIV-1 infection. CD4 counts fall more rapidly in advanced disease when CCR5-tropic viral strains tend to be replaced by X4-tropic viruses.
de Lara, C   +27 more
core   +1 more source

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