Results 101 to 110 of about 15,293,201 (302)

In vitro generation of regulatory T cells: A challenging tool for studying immune aging in humans

open access: yesFEBS Open Bio, EarlyView.
In vitro induction of human regulatory T cells using standard protocols generates suppressive, Foxp3‐expressing CD4+ T cells independently of TGF‐β supplementation and donor age. Regulatory T (Treg) cells play a key role in immune tolerance and homeostasis.
Lynn Muller   +3 more
wiley   +1 more source

Characteristics of PD‐1+CD4+ T cells in peripheral blood and synovium of rheumatoid arthritis patients

open access: yesClinical & Translational Immunology
Objectives PD‐1 plays a crucial role in the immune dysregulation of rheumatoid arthritis (RA), but the specific characteristics of PD‐1+CD4+ T cells remain unclear and require further investigation.
Yan‐juan Chen   +5 more
doaj   +1 more source

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

open access: yesAging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Incomplete depletion and rapid regeneration of Foxp3+ regulatory T cells following anti-CD25 treatment in malaria-infected mice. [PDF]

open access: yes, 2007
Investigation of the role of regulatory T cells (Treg) in model systems is facilitated by their depletion using anti-CD25 Abs, but there has been considerable debate about the effectiveness of this strategy.
Couper, Kevin N   +9 more
core   +1 more source

Adaptive-like CAR-iPSC-CD4⁺ T cells outperform CD8⁺ counterparts in sustained ALL control

open access: yesInflammation and Regeneration
Background Induced pluripotent stem cell (iPSC)–derived T cells offer a renewable source for off-the-shelf immunotherapy. With the advent of the artificial thymic organoid (ATO) method, the in vitro differentiation of CD4+ T cells from iPSCs has also ...
Qingyi Guo   +8 more
doaj   +1 more source

Complete Multilineage CD4 Expression Defect Associated With Warts Due to an Inherited Homozygous CD4 Gene Mutation

open access: yesFrontiers in Immunology, 2019
Idiopathic T-CD4 lymphocytopenia (ICL) is a rare and heterogeneous syndrome characterized by opportunistic infections due to reduced CD4 T-lymphocytes (<300 cells/μl or <20% T-cells) in the absence of HIV infection and other primary causes of ...
Rosa Anita Fernandes   +27 more
doaj   +1 more source

Understanding and Mitigating the Risk of Accelerated Biological Aging in Survivors of Cancer: A Scoping Review

open access: yesAging and Cancer, EarlyView.
Cancer treatment is associated with measurable acceleration of biological aging across epigenetic, telomere, senescence, and immune biomarkers. However, biomarker validation and interventional strategies remain limited, especially in hematologic malignancies, underscoring the need for standardized multi‐omic aging assessments and adequately powered ...
Moataz Ellithi   +3 more
wiley   +1 more source

Maturation and mip-1β production of cytomegalovirus-specific T cell responses in Tanzanian children, adolescents and adults : impact by HIV and Mycobacterium tuberculosis co-infections [PDF]

open access: yes, 2015
It is well accepted that aging and HIV infection are associated with quantitative and functional changes of CMV-specific T cell responses. We studied here the expression of Mip-1β and the T cell maturation marker CD27 within CMVpp65-specific CD4+ and CD8+
Elmar Saathoff   +77 more
core   +1 more source

Influenza Vaccination Responses in Disabled Stroke Patients: A Single‐Center Prospective Observational Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study aimed to investigate the immunological response to influenza vaccination, the incidence and severity of influenza infection, and the side effects of the vaccination in patients with ischemic stroke. Methods This prospective observational study was conducted between 2023 and 2024 at Ramathibodi Hospital.
Achiraya Pakngao   +5 more
wiley   +1 more source

The function and origin of the CD4+ T cell in the classical Hodgkin lymphoma microenvironment [PDF]

open access: yes, 2012
PhDClassical Hodgkin lymphoma (CHL) is a germinal centre B cell malignancy where the bulk of the tumour comprises a non-clonal immune infiltrate enriched for CD4+ T cells.
Greaves, Paul
core   +2 more sources

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