Results 31 to 40 of about 67,295 (252)

HDAC3 restrains CD8-lineage genes to maintain a bi-potential state in CD4+CD8+ thymocytes for CD4-lineage commitment

open access: yeseLife, 2019
CD4 and CD8 T cells are vital components of the immune system. We found that histone deacetylase 3 (HDAC3) is critical for the development of CD4 T cells, as HDAC3-deficient DP thymocytes generate only CD8SP thymocytes in mice.
Rachael Laura Philips   +8 more
doaj   +1 more source

The molecular signature underlying the thymic migration and maturation of TCRαβ+ CD4+ CD8 thymocytes.

open access: yesPLoS ONE, 2011
BackgroundAfter positive selection, the newly generated single positive (SP) thymocytes migrate to the thymic medulla, where they undergo negative selection to eliminate autoreactive T cells and functional maturation to acquire immune competence and ...
Fei Teng   +12 more
doaj   +1 more source

A novel activity on thymocytes cells exerted by the rattlesnake (Crotalus durissus cumanensis) venom

open access: yesBiomédica: revista del Instituto Nacional de Salud, 2021
Introduction: The thymus is active mainly during the neonatal and pre-adolescent periods. Objective: To test naïve thymocytes proliferation and monocytes stimulation. Materials and methods: We collected fresh thymus tissue from neonate mice after surgery.
María M. Pulido-Méndez   +2 more
doaj   +1 more source

Cytosolic sequestration of Prep1 influences early stages of T cell development.

open access: yesPLoS ONE, 2008
ObjectivePrep1 and Pbx2 are the main homeodomain DNA-binding proteins of the TALE (three amino acid loop extension) family expressed in the thymus. We previously reported reduced Pbx2 expression and defective thymocyte maturation in Prep1 hypomorphic ...
Dmitry Penkov   +3 more
doaj   +1 more source

Destabilizing the autoinhibitory conformation of Zap70 induces up-regulation of inhibitory receptors and T cell unresponsiveness. [PDF]

open access: yes, 2017
Zap70 plays a critical role in normal T cell development and T cell function. However, little is known about how perturbation of allosteric autoinhibitory mechanisms in Zap70 impacts T cell biology.
Chen, Yiling   +4 more
core   +2 more sources

Mitochondrial nutrients improve immune dysfunction in the type 2 diabetic Goto-Kakizaki rats. [PDF]

open access: yes, 2008
The development of type 2 diabetes is accompanied by decreased immune function and the mechanisms are unclear. We hypothesize that oxidative damage and mitochondrial dysfunction may play an important role in the immune dysfunction in diabetes.
Hao, Jiejie   +8 more
core   +1 more source

Live-Cell FRET Imaging Reveals a Role of Extracellular Signal-Regulated Kinase Activity Dynamics in Thymocyte Motility

open access: yesiScience, 2018
Summary: Extracellular signal-regulated kinase (ERK) plays critical roles in T cell development in the thymus. Nevertheless, the dynamics of ERK activity and the role of ERK in regulating thymocyte motility remain largely unknown due to technical ...
Yoshinobu Konishi   +9 more
doaj   +1 more source

T cell factor-1 controls the lifetime of CD4+ CD8+ thymocytes in vivo and distal T cell receptor α-chain rearrangement required for NKT cell development. [PDF]

open access: yesPLoS ONE, 2014
Natural killer T (NKT) cells are a component of innate and adaptive immune systems implicated in immune, autoimmune responses and in the control of obesity and cancer.
Archna Sharma   +2 more
doaj   +1 more source

Models of self-peptide sampling by developing T cells identify candidate mechanisms of thymic selection [PDF]

open access: yes, 2013
Conventional and regulatory T cells develop in the thymus where they are exposed to samples of self-peptide MHC (pMHC) ligands. This probabilistic process selects for cells within a range of responsiveness that allows the detection of foreign antigen ...
Bains, Iren   +3 more
core   +1 more source

HIV infection of thymocytes inhibits IL-7 activity without altering CD127 expression

open access: yesRetrovirology, 2011
Background Thymic function is altered in HIV infection and characterized by dysregulation of the thymic epithelial network, reduced thymic output and ultimately an impaired naïve T-cell pool.
Young Charlene D, Angel Jonathan B
doaj   +1 more source

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