Results 21 to 30 of about 32,913 (197)

Immature CD8 Single-Positive Thymocytes Are a Molecularly Distinct Subpopulation, Selectively Dependent on BRD4 for Their Differentiation

open access: yesCell Reports, 2018
Summary: T cell differentiation in the thymus proceeds in an ordered sequence of developmental events characterized by variable expression of CD4 and CD8 coreceptors. Here, we report that immature single-positive (ISP) thymocytes are molecularly distinct
Anne Gegonne   +8 more
doaj   +1 more source

The sensitivity of cells with the various level of NAD(P)H:quinone oxidoreductase 1 to cytotoxic action of quinonimines and α-тоcopherol synthetic derivatives [PDF]

open access: yesThe Ukrainian Biochemical Journal, 2015
The effects of α-tocopherol with shortened to 6 carbon atoms side chain (α-Toc-C6), α-tocopherol succinate (α-TS) and quinonimine 2,6-dichlorophenolindophenol (DCPIP) on DT-diaphorase activity and viability of rat thymocytes, splenocytes and hepatocytes ...
G. V. Petrova, А. V. Parshykov
doaj   +1 more source

Endoplasmic Reticulum Stress and Unfolded Protein Response in Atm-Deficient Thymocytes and Thymic Lymphoma Cells Are Attributable to Oxidative Stress

open access: yesNeoplasia: An International Journal for Oncology Research, 2008
Both oxidative stress and endoplasmic reticulum (ER) stress have been implicated in carcinogenesis. It is well documented that cells deficient in the ataxia-telangiectasia mutated (ATM) gene undergo oxidative stress, which is critically involved in ...
Mingshan Yan   +6 more
doaj   +1 more source

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

Calcium Signaling Is Impaired in PTEN-Deficient T Cell Acute Lymphoblastic Leukemia

open access: yesFrontiers in Immunology, 2022
PTEN (Phosphatase and TENsin homolog) is a well-known tumor suppressor involved in numerous types of cancer, including T-cell acute lymphoblastic leukemia (T-ALL). In human, loss-of-function mutations of PTEN are correlated to mature T-ALL expressing a T-
Saran Pankaew   +9 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

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

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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