Tag Archives: priming

Priming with DNA Vaccine Makes Avian Flu Vaccine Are More Effective

by on 06. Oct, 2011 in Health

Source: National Institute of Allergy and Infectious Illnesses -

Related MedlinePlus Sheet: Bird Flu (Source: MedlinePlus Health News) More details: More info...

Tags: Health, flu, priming, related, National, DNA…

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Cytoskeletal remodeling mediated by WASp in dendritic cells is essential for normal immune synapse formation and T-cell priming

by on 04. Sep, 2011 in Health

Rearrangement from the cytoskeleton in T cells plays a vital role within the organization of the complex signaling interface known to as immunologic synapse (IS). Remarkably, the contribution of antigen showing cells, particularly dendritic cells (DCs), towards the structure and purpose of the IS is not looked into in just as much detail. We now have used an all natural imitation of cytoskeletal disorder triggered by lack of the Wiskott-Aldrich syndrome protein (WASp) look around the contribution from the Electricity cytoskeleton to IS formation and also to T-cell priming. Within an antigen-specific system, T-Electricity contacts were discovered to …

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Cholera Toxin and its non‐toxic βsubunit promote an efficient IFN‐γ and IL‐17 CD4+ T cell Differentiation after immunization in the ear depending of migrating DCs

by on 26. Jul, 2011 in Health

AbstractThe nature of CD4+ T cell responses after skin immunization and the role of migrating DCs in the presence of adjuvants in the elicited response are fascinating issues to be investigated. Here, we evaluated the priming of CD4+ T cells following ear immunization with low doses of imitation antigens in combination with either cholera toxin (CT) or the non‐toxic CT subunit (CTB) as an adjuvant. Following immunization with CT, we found efficient antigen presentation that is reflected in the production of IFN‐ã and IL‐17 by CD4+ T cells over IL‐4 or IL‐5 production. The CTB‐induced activation of dendritic …

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Coupling presentation of MHC class I peptides to constitutive activation of antigen-showing cells with the product of merely one gene

by on 27. Jun, 2011 in Health

Priming of naive CD8 T cells by dendritic cells (DCs) entails both effective antigen presentation on MHC class I items and co-stimulatory signaling. Their optimal coupling is really a major goal in the introduction of CTL-inducing vaccines. We lately reported that the membranal derivative from the invariant MHC-I blaze chain, &a2-microglobulin (&beta), substantially balances MHC-I molecules and may serve as a universal platform for exceptional presentation of genetically linked peptides. To check on whether it's imaginable to equip the resulting MHC-I complexes by having an natural capability to activate antigen-showing cells, we engrafted the intra cellular Toll/IL-1 receptor domain of …

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CD4+ T cells support cytotoxic T lymphocyte priming by controlling lymph node input [Immunology]

by on 26. May, 2011 in Health

Fast induction of CD8+ cytotoxic T lymphocyte (CTL) responses is crucial to combat acute infection with intracellular pathogens. CD4+ T cells aid prime antigen-specific CTLs in secondary lymphoid organs after infection in the periphery. Even though the frequency of naïve precursors is extremely reduced, the immune program is in a position to effectively screen for cognate CTLs through mechanisms that are not well understood. Right here we examine the role of CD4+ T cells in early phases of the immune response. We exhibit that CD4+ T cells aid optimal CTL expansion by facilitating entry of naïve polyclonal CD8+ T …

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Immunization with HIV Gag targeted to dendritic cells followed by recombinant New York vaccinia virus induces robust T-cell immunity in nonhuman primates [Immunology]

by on 27. Apr, 2011 in Health

Protein vaccines, if rendered immunogenic, would facilitate vaccine development against HIV and other pathogens. We compared in nonhuman primates (NHPs) immune responses to HIV Gag p24 within 3G9 antibody to DEC205 (“DEC-HIV Gag p24”), an uptake receptor on dendritic cells, to nontargeted protein, with or without poly ICLC, a synthetic double stranded RNA, as adjuvant. Priming s.c. with 60 μg of both HIV Gag p24 vaccines elicited potent CD4+ T cells secreting IL-2, IFN-γ, and TNF-α, which also proliferated. The responses increased with each of three immunizations and recognized multiple Gag peptides. DEC-HIV Gag p24 showed bigger cross-…

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The relationship between human effector and memory T cells measured by ex vivo and cultured ELISPOT following recent and distal priming

by on 13. Mar, 2011 in Health

(Source: Immunology) More information: More info...

Tags: effector, ELISPOT, Health, Relationship, priming, t cells…

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