Results 41 to 50 of about 1,048,882 (334)

VIOLATION OF THE ACTIVITY OF CERTAIN T-CELL SUBPOPULATIONS IN SEVERE COVID-19

Актуальные проблемы теоретической и клинической медицины, 2022
COVID-19 is a highly pathogenic viral infection caused by the SARS-CoV-2 coronavirus. The study of adaptive immunity to SARSCoV-2 is important for understanding the pathogenesis of the novel coronavirus infection COVID-19, the development of vaccines and
S. A. Kan, E. O. Ostapchuk
doaj   +1 more source

Role of Dicer Enzyme in the Regulation of Store Operated Calcium Entry (SOCE) in CD4+ T Cells [PDF]

, 2016
Background/Aims: Activation of T cell receptors (TCRs) in CD4+ T cells leads to a cascade of signalling reactions including increase of intracellular calcium (Ca2+) levels with subsequent Ca2+ dependent stimulation of gene expression, proliferation, cell
Abousaab, A, Al-Maghout, T, Bissinger, R, Cheng, A, Cobb, B S, Lang, F, Pelzl, L, Salker, M S, Singh, Y, Zhang, S, Zhou, Y   +10 more
core   +3 more sources

Function‐driven design of a surrogate interleukin‐2 receptor ligand

FEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang, Zelin Cheng, Teng Li, Fulian Wang, Liangminghui Zhang, Xiuxiu He, Lili Liu, Wei Wang, Aibin Liang, Guang Yang   +9 more
wiley   +1 more source

Impact of CD39 expression on CD4+ T lymphocytes and 6q deletion on outcome of patients with chronic lymphocytic leukemia

Hematology/Oncology and Stem Cell Therapy, 2019
Objective/Background: Chronic lymphocytic leukemia is one of the commonest leukemias affecting adults. CD39 inhibits T-cell and Natural killer (NK) cell responses by hydrolyzing adenosine triphosphate and adenosine diphosphate, suppressing the immune ...
Eman Mosaad Zaki, Asmaa Mohamed Zahran, Alshimaa Abdelazeem Metwaly, Rania Hafez, Safinaz Hussein, Abdallah Elaiw Mohammed   +5 more
doaj   +1 more source

The cytoplasmic domain of CD4 promotes the development of CD4 lineage T cells. [PDF]

, 1996
Thymocytes must bind major histocompatibility complex (MHC) proteins on thymic epithelial cells in order to mature into either CD8+ cytotoxic T cells or CD4+ helper T cells.
Corbella, P, Itano, A, Kioussis, D, ROBEY, Ellen, Salmon, P, Tolaini, M   +5 more
core  

Mechanisms of IgE‐mediated food allergy and the role of allergen‐specific B cells

FEBS Letters, EarlyView.
Food allergy arises when allergen‐specific B cells preferentially produce immunoglobulin E (IgE) antibodies against harmless foods. This article explains the mechanisms driving IgE‐mediated reactions, highlights the central role of these B cells, and discusses how natural tolerance (NT) and oral immunotherapy (OIT) can reshape allergic immune responses.
Juan‐Felipe López, Özge Yilmaz Ardicli, Mübeccel Akdis   +2 more
wiley   +1 more source

Effect of pembrolizumab on CD4+CD25+, CD4+LAP+ and CD4+TIM-3+ T cell subsets [PDF]

Clinical and Experimental Immunology, 2019
Summary Tumor immune evasion involves the expansion of avidly proliferating immunosuppressive cells and inhibition of effector T cell proliferation. Immune checkpoints (IC) block the activation pathways of tumor-reactive T cells. IC pathways are often exploited by tumor cells to evade immune destruction, and blocking these pathways ...
S M Toor, V Sasidharan Nair, G Pfister, E Elkord   +3 more
openaire   +2 more sources

Aggressive prostate cancer is associated with pericyte dysfunction

Molecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero, Ane Martinez‐Larrinaga, Joaquim Grego‐Bessa, Saioa Garcia‐Longarte, Hielke van Splunder, Ianire Astobiza, Amaia Ercilla, Laura Bozal‐Basterra, Isabel Mendizabal, Pilar Villacampa, Arkaitz Carracedo, Mariona Graupera   +11 more
wiley   +1 more source

Role of CD4 epitopes outside the gp120-binding site during entry of human immunodeficiency virus type 1 [PDF]

, 1997
CD4 is the primary receptor for human immunodeficiency virus (HIV). The binding site for the surface glycoprotein of HIV type 1 (HIV-1), gp120, has been mapped to the C'-C" region of domain 1 of CD4. Previously, we have shown that a mutant of rat CD4, in
Simon, J.H.M, Stumbles, P.A., Signoret, N., Somoza, C., Puklavec, M., Sattentau, Q.J., Barclay, A.N., James, W.   +7 more
core   +1 more source

Reduced vascular leakage correlates with breast carcinoma T regulatory cell infiltration but not with metastatic propensity

Molecular Oncology, EarlyView.
A mouse model for vascular normalization and a human breast cancer cohort were studied to understand the relationship between vascular leakage and tumor immune suppression. For this, endothelial and immune cell RNAseq, staining for vascular function, and immune cell profiling were employed.
Liqun He, Chiara Testini, Neda Hekmati, Altea Bonello, Aglaia Schiza, Emmanuel Nwadozi, Mia Phillipson, Carina Strell, Michael Welsh   +8 more
wiley   +1 more source