antiviral immunity

an·ti·vi·ral im·mu·ni·ty

immunity resulting from virus infection, either naturally acquired or produced by intentional vaccination; compared with some bacterial immunities, it is of relatively long duration, but this may be the result of infection-immunity rather than being peculiar to virus infection per se, because it occurs also in bacterial immunity after infections such as typhoid fever.
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With the proposed SENTINEL project, I aim to identify novel strategies to enhance innate antiviral immunity to HIV-1 to limit establishment and progression of chronic disease.
Lead scientist Professor Adnan Custovic, from the University of Manchester, said: "We speculate that hidden factors which increase the likelihood of both antibiotic prescription in early life and subsequent asthma are an increased susceptibility to viral infections due to impaired antiviral immunity and genetic variants on 17q21.
Similarly, mice treated with a compound that inhibits PGE2 showed enhanced antiviral immunity and survival rates following infection with a lethal dose of the flu virus compared with untreated mice.
Ideal protection for progenitor cells Voinnet provides two reasons why the role of RNAi in antiviral immunity in mammals has been overlooked for so long: first, studies conducted in plants (notably by the Voinnet group) and later in invertebrates have shown that many viruses have developed counter-defences to inhibit the RNAi machinery of infected cells.
They discuss innate antiviral responses in invertebrates and Toll-like receptors (TLR) in vertebrates, as well as the phylogenetic relationship of pathogen sensing, the downstream adaptor molecules, and the functional consequences; nucleic acid sensing pathways, alternative regulator mechanisms of TLR signaling RIG-I-like receptors, the contribution of LGP2 to antiviral immunity, mitochondrial immune signaling complex and DNA sensors, and the complexities of downstream signaling, the adaptor molecules involved, and the regulatory pathways; and the molecular mechanisms by which pathogens such as poxviruses, HIV, and influenza evade host innate immune mechanisms, the viral virulence factors responsible, and their interactions with the innate immune sensors.
Given the role of IL-6 in antiviral immunity, CMV reactivation in IL-6 blockade is not surprising (4).
Cytomegalovirus-specific T cell immunotherapy promotes restoration of durable functional antiviral immunity following allogeneic stem cell transplantation.
Comment: This mice study demonstrates that the experience of repeated social defeat prior to a primary viral infection significantly enhances virus-specific memory via augmentation of memory T cell populations, and suggests that social stressors should be carefully considered in the analysis of implications on antiviral immunity.
The findings mean scientists must rethink the design of antiviral immunity and how the body fends off viruses of all types, including influenza and HIV.
This primarily results in the generation of CD8 T cells, which are key in antiviral immunity.
This study builds on previously announced results that described immunogenicity results in sheep, particularly the ability of DCtag to induce superior interferon gamma production, a key marker of antiviral immunity.
Although dsRNA as a mediator of local antiviral immunity is well established in insects, the effectors of asystemic immune response are not identified.