Resultados: 5

Helios expressing regulatory T cells are correlated with decreased IL-2 producing CD8 T cells and antibody diversity in Mozambican individuals living chronically with HIV-1

BMC immunol. (Online); 23 (12), 2022
Background: Human immunodeficiency virus type 1 (HIV-1) causes impairment of T and B cell responses, which begins during the acute phase of infection and is not completely restored by antiretroviral treatment. Regulatory T cell (Tregs) can improve overall disease outcome by controlling chronic inflammati...

Regulatory T cell abundance and activation status before and after priming with HIVIS-DNA and boosting with MVA-HIV/rgp140/GLA-AF may impact the magnitude of the vaccine-induced immune responses

Immunobiol., Suppl; 223 (12), 2018
Little is known about regulatory CD4 T cells (Tregs) in the context of HIV vaccines. Tregs can be differentiated into resting (FoxP3+CD45RA+ - rTregs), activated (FoxP3HighCD45RA- - aTregs) and memory (FoxP3LowCD45RA- - mTregs). Tregs, as CD4 T cells, are also frequent targets for HIV infection. We studi...

Helios + Regulatory T cell frequencies are correlated with control of viral replication and recovery of absolute CD4 T cells counts in early HIV-1 infection

BMC immunol. (Online); 18 (1), 2017
Background: The acute phase of HIV infection is characterized by massive depletion of CD4 T cells, high viral plasma levels and pronounced systemic immune activation. Regulatory T cells (Tregs) have the potential to control systemic immune activation but also to suppress antigen specific T and B cell res...

CD4(+)CD25(High) Treg cells in HIV/HTLV co-infected patients with neuropathy: high expression of Alpha4 integrin and lower expression of Foxp3 transcription factor

BMC immunol. (Online); 52 (16), 2015
Regulatory CD4 T cells (Tregs) are critical in maintaining the homeostasis of the immune system. Quantitative or phenotypic alterations and functional impairment of Tregs have been associated with the development of pathologies including those of the central nervous system. Individuals with HIV-1/HTLV-1 ...

CD4+CD25High Treg cells in HIV/HTLV Co-infected patients with neuropathy: high expression of Alpha4 integrin and lower expression of Foxp3 transcription factor
CD4(+)CD25(High) Treg cells in HIV/HTLV co-infected patients with neuropathy: high expression of Alpha4 integrin and lower expression of Foxp3 transcription factor

BMC immunol. (Online); 16 (52), 2015
As células T CD4 reguladoras (Tregs) são críticas na manutenção da homeostase do sistema imunológico. Alterações quantitativas ou fenotípicas e comprometimento funcional de Tregs têm sido associados ao desenvolvimento de patologias incluindo as do sistema nervoso central. Indivíduos com coinfe...