Results 41 to 50 of about 144,479 (301)

Characterization of human cytomegalovirus peptide-specific CD8+ T-cell repertoire diversity following in vitro restimulation by antigen-pulsed dendritic cells

open access: yes, 2002
Under conditions of impaired T-cell immunity, human cytomegalovirus (HCMV) can reactivate from lifelong latency, resulting in potentially fatal disease.
Moss, Paul; id_orcid   +13 more
core   +1 more source

Rapid turnover of effector-memory CD4(+) T cells in healthy humans [PDF]

open access: yes, 2004
Memory T cells can be divided into central-memory (T(CM)) and effector-memory (T(EM)) cells, which differ in their functional properties. Although both subpopulations can persist long term, it is not known whether they are maintained by similar ...
Peter C.L. Beverley   +27 more
core   +1 more source

Class II MHC self-antigen presentation in human B and T lymphocytes. [PDF]

open access: yesPLoS ONE, 2012
Human CD4(+) T cells process and present functional class II MHC-peptide complexes, but the endogenous peptide repertoire of these non-classical antigen presenting cells remains unknown. We eluted and sequenced HLA-DR-bound self-peptides presented by CD4(
Cristina Maria Costantino   +3 more
doaj   +1 more source

Is the exquisite specificity of lymphocytes generated by thymic selection or due to evolution?

open access: yesFrontiers in Immunology
We have previously argued that the antigen receptors of T and B lymphocytes evolved to be sufficiently specific to avoid massive deletion of clonotypes by negative selection.
Rob J. De Boer   +3 more
doaj   +1 more source

Comprehensive T cell repertoire characterization of non-small cell lung cancer

open access: yesNature Communications, 2020
Relevant features of T cell repertoire in human cancer remain to be delineated. Here the authors show, by TCR sequencing in a large cohort of lung cancer patients, that while a majority of T cell clones are shared between tumor and adjacent lung tissue ...
Alexandre Reuben   +57 more
doaj   +1 more source

Preexisting memory CD4 T cells in naïve individuals confer robust immunity upon hepatitis B vaccination

open access: yeseLife, 2022
Antigen recognition through the T cell receptor (TCR) αβ heterodimer is one of the primary determinants of the adaptive immune response. Vaccines activate naïve T cells with high specificity to expand and differentiate into memory T cells.
George Elias   +18 more
doaj   +1 more source

Regional and global changes in TCR [alpha][beta] T cell repertoires in the gut are dependent upon the complexity of the enteric microflora

open access: yes, 2010
The repertoire of gut associated T cells is shaped by exposure to microbes, including the natural enteric microflora. Previous studies compared the repertoire of gut associated T cell populations in germ free (GF) and conventional mammals often focussing
Beal, R.K.   +28 more
core   +1 more source

Tracking Virus-Specific CD4+ T Cells during and after Acute Hepatitis C Virus Infection [PDF]

open access: yes, 2007
Background. CD4+ T cell help is critical in maintaining antiviral immune responses and such help has been shown to be sustained in acute resolving hepatitis C.
Paul Klenerman   +175 more
core   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

open access: yesFEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz   +11 more
wiley   +1 more source

Deep sequencing of antiviral T-cell responses to HCMV and EBV in humans reveals a stable repertoire that is maintained for many years. [PDF]

open access: yesPLoS Pathogens, 2012
CD8(+) T-cell responses against latent viruses can cover considerable portions of the CD8(+) T-cell compartment for many decades, yet their initiation and maintenance remains poorly characterized in humans. A key question is whether the clonal repertoire
P L Klarenbeek   +13 more
doaj   +1 more source

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