Streptococcal Superantigens by Anshu Babbar

By Anshu Babbar

This publication presents considerable wisdom and higher knowing of Streptococcus pyogenes and their superantigens. Many illustrations make this a hugely informative publication. This publication elucidates in brief Streptococcus pyogenes as a strict human pathogen owning an array of virulence components. those assist in evading host immune responses similar to via the activation of non-specific T-cell subpopulations by means of generating superantigens. This booklet as a rule specializes in streptococcal superantigens and explains how they're varied from traditional antigens. additionally, it elaborates these ailments within which superantigens are actively concerned. important elements of superantigens and assorted healing interventions to get rid of superantigens prompted diseased also are discussed.

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Streptococcal Superantigens

This booklet presents abundant wisdom and higher knowing of Streptococcus pyogenes and their superantigens. Many illustrations make this a hugely informative e-book. This publication elucidates in short Streptococcus pyogenes as a strict human pathogen owning an array of virulence components. those assist in evading host immune responses comparable to by means of the activation of non-specific T-cell subpopulations by means of generating superantigens.

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L. (2005). Vascular dysfunction and ischemic destruction of tissue in Streptococcus pyogenes infection: the role of streptolysin O-induced platelet/neutrophil complexes. The Journal of Infectious Diseases, 192(6), 1014–1022. 1086/432729. Buchanan, J. , et al. (2006). DNase expression allows the pathogen group A Streptococcus to escape killing in neutrophil extracellular traps. Current Biology, 16, 396–400. Carapetis, J. , Steer, A. , Mulholland, E. , & Weber, M. (2005). The global burden of group A streptococcal diseases.

5 Streptococcal Superantigens Association of SAg with Disease Although the exact pathogenic function of superantigen is not known, it is still clear that these proteins imbalance the host immune system by activation of nonspecific T-cells and burst release of cytokines. Interestingly, the antibodies generated by a SAg are not expected to cross react with other superantigen, thus restricting the host efficiency to counteract multiple toxins (Bavari et al. 1999). Understanding the co-relation of superantigens with diseases is further more complicated because of variations in superantigen pattern present in the bacteria and their expression in vivo.

3 Clinical Studies There are many clinical cases wherein IVIG was used as an adjunctive therapy in streptococcal cases, especially in StrepTSS (Jolles et al. 2005). Many case reports (Schrage et al. 2006; Barry et al. 1992; Cawley et al. 1999), observational cohorts 30 Streptococcal Superantigens (Norrby-Teglund et al. 2005), case-control study (Kaul et al. 1995) and multi-centered placebo-control study (Darenberg et al. 2003). The multi-centered placebo-control study was prematurely terminated because of slow patient recruitment (Darenberg et al.

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