Results 11 to 20 of about 459,921 (305)

Comprehensive definition of human immunodominant CD8 antigens in tuberculosis. [PDF]

open access: yesNPJ Vaccines, 2017
AbstractDespite widespread use of the Bacillus Calmette-Guerin vaccine, tuberculosis, caused by infection with Mycobacterium tuberculosis, remains a leading cause of morbidity and mortality worldwide. As CD8+ T cells are critical to tuberculosis host defense and a phase 2b vaccine trial of modified vaccinia Ankara expressing Ag85a that failed to ...
Lewinsohn DA   +18 more
europepmc   +4 more sources

Immunodominant tuberculosis CD8 antigens preferentially restricted by HLA-B. [PDF]

open access: yesPLoS Pathogens, 2007
CD8(+) T cells are essential for host defense to intracellular bacterial pathogens such as Mycobacterium tuberculosis (Mtb), Salmonella species, and Listeria monocytogenes, yet the repertoire and dominance pattern of human CD8 antigens for these ...
Deborah A Lewinsohn   +9 more
doaj   +4 more sources

CD8 memory, immunodominance, and antigenic escape [PDF]

open access: yesEuropean Journal of Immunology, 2000
Previous theoretical work has suggested that efficient virus control or clearance requires antigen-independent persistence of memory cytotoxic T lymphocyte precursors (CTLp), and that failure to generate such memory CTLp can result in persistent infection and eventual loss of virus control.
D, Wodarz, M A, Nowak
openaire   +2 more sources

Antigens for CD4 and CD8 T Cells in Tuberculosis [PDF]

open access: yesCold Spring Harbor Perspectives in Medicine, 2014
Tuberculosis (TB), caused by infection with Mycobacterium tuberculosis (MTB), represents an important cause of morbidity and mortality worldwide for which an improved vaccine and immunodiagnostics are urgently needed. CD4(+) and CD8(+) T cells play an important role in host defense to TB.
Cecilia S, Lindestam Arlehamn   +3 more
openaire   +2 more sources

Signals for antigen-independent differentiation of memory CD8+ T cells [PDF]

open access: yesCellular and Molecular Life Sciences, 2021
AbstractConventional CD8+ memory T cells develop upon stimulation with foreign antigen and provide increased protection upon re-challenge. Over the past two decades, new subsets of CD8+ T cells have been identified that acquire memory features independently of antigen exposure.
Eliza Mari Kwesi-Maliepaard   +2 more
openaire   +3 more sources

Modulation of CD8 and CD3 by HIV or HIV Antigens [PDF]

open access: yesScandinavian Journal of Immunology, 2001
To investigate whether human immunodeficiency virus (HIV)‐1 and HIV‐1 antigens modulate surface and cytoplasmic CD8 or CD3, as well as CD4, we used cell permeabilization reagents, surface/cytoplasmic fluorescent staining, multiparameter flow cytometric techniques and an in vitro culture system in which relatively few lymphocytes are actively infected ...
J, Jason, K L, Inge
openaire   +2 more sources

Antigenic Epitopes Regulate the Phenotype of CD8+ CTL Primed by Exogenous Antigens [PDF]

open access: yesThe Journal of Immunology, 2000
Abstract We previously reported that insulin-specific, MHC class I-restricted CTL precursors can be primed by injecting C57BL/6 mice with bovine insulin in CFA. These bovine insulin-primed CTL displayed a type 0 CTL phenotype, producing IL-4, IL-5, IL-10, low levels of IFN-γ, but no TNF-α.
H, Ma, J A, Kapp
openaire   +2 more sources

Escaping high viral load exhaustion: CD8 cells with altered tetramer binding in chronic hepatitis B virus infection [PDF]

open access: yes, 2002
Deletion, anergy, and a spectrum of functional impairments can affect virus-specific CD8 cells in chronic viral infections. Here we characterize a low frequency population of CD8 cells present in chronic hepatitis B virus (HBV) infection which survive in
Ogg, GS   +29 more
core   +1 more source

CD8+ T-cell responses to Theileria parva are preferentially directed to a single dominant antigen:Implications for parasite strain-specific immunity [PDF]

open access: yes, 2009
Although immunodominance of CD8(+) T-cell responses is a well-recognised feature of viral infections, its role in responses to more antigenically complex pathogens is less clear.
Connelley, T.   +44 more
core   +1 more source

Modulation of the CD8+-T-cell response by CD4+ CD25+ regulatory T cells in patients with Hepatitis B virus infection [PDF]

open access: yes, 2005
CD4+ CD25+ regulatory T cells have been shown to maintain peripheral tolerance against self and foreign antigens. In this study we analyzed the effect of circulating CD4+ CD25+ T cells on CD8+-T-cell responses of patients with chronic and resolved ...
Gotto, J   +19 more
core   +1 more source

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