Results 21 to 30 of about 67,295 (252)

Thymocytes can tolerize thymocytes by clonal deletion in vitro [PDF]

open access: yesInternational Immunology, 1992
Clonal deletion of thymocytes bearing TCR for self antigens is one major mechanism of T cell tolerance induction. Peptide antigen-induced deletion of thymocytes from alpha beta TCR transgenic mice has been studied using single cell suspension cultures.
Pircher, Hanspeter   +3 more
openaire   +4 more sources

Effects of an immunosuppressive active component of Periplocae Cortex (Periploca sepium Bge.) on positive selection of thymocytes in vitro

open access: yesJournal of Traditional Chinese Medical Sciences, 2018
Objective: To determine the effect of an immunosuppressive active component (periploside A) isolated from the stem bark of Periplocae Cortex (Periploca sepium Bge.), a Chinese medicinal herb used in the treatment of rheumatoid arthritis for centuries in ...
Huifang Deng   +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

Absence of ZAP-70 prevents signaling through the antigen receptor on peripheral blood T cells but not on thymocytes. [PDF]

open access: yes, 1995
Recently, a severe combined immunodeficiency syndrome with a deficiency of CD8+ peripheral T cells and a TCR signal transduction defect in peripheral CD4+ T cells was associated with mutations in ZAP-70.
Gelfand, EW   +4 more
core   +2 more sources

Endogenous topoisomerase II-mediated DNA breaks drive thymic cancer predisposition linked to ATM deficiency [PDF]

open access: yes, 2020
The ATM kinase is a master regulator of the DNA damage response to double-strand breaks (DSBs) and a well-established tumour suppressor whose loss is the cause of the neurodegenerative and cancer-prone syndrome Ataxia-Telangiectasia (A-T).
Bernal Lozano, Cristina   +10 more
core   +3 more sources

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

Notch signaling during human T cell development [PDF]

open access: yes, 2012
Notch signaling is critical during multiple stages of T cell development in both mouse and human. Evidence has emerged in recent years that this pathway might regulate T-lineage differentiation differently between both species.
A Galy   +97 more
core   +2 more sources

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

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

Murine terminal deoxynucleotidyl transferase: cellular distribution and response to cortisone [PDF]

open access: yes, 1975
The mouse thymus contains two forms of terminal deoxynucleotidyl transferase (TdT) which are distinguishable by the salt concentration necessary to elute them from a phosphocellulose column, by their distrubtion among the thymocyte subpopulations, and by
Baltimore, David   +3 more
core   +1 more source

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