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Improvement of immune responses to influenza vaccine (H5N1) by sulfated yeast beta-glucan. | LitMetric

Improvement of immune responses to influenza vaccine (H5N1) by sulfated yeast beta-glucan.

Int J Biol Macromol

Department of Pharmacy, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, PR China. Electronic address:

Published: December 2016

AI Article Synopsis

Article Abstract

In this study, the adjuvant activity of sulfated glucan from saccharomyces cerevisiae (GSC) was investigated. sGSC had molecular weight of 12.9kDa and degrees of sulfation of 0.16. The effects of GSC on the splenic lymphocyte cells of mice were measured in vitro. The results showed that GSC could significantly promote lymphocyte proliferation singly or synergistically with Con A and LPS, and stimulate the cells to secrete IL-2 and INF-γ. The adjuvant activity of GSC was researched in BALB/c mice inoculated with inactivated H5N1vaccine in vivo. The results showed that GSC could significantly enhance lymphocyte proliferation, effectively increase the percentage of CD4 T cells, decrease the percentage of CD8 T cells, and elevate the CD4/CD8 ratio; enhance the HI antibody titre, and promote the production of IL-2, INF-γ, IL-4 and IL-6 at medium level. These results indicated that sulfated glucan showed an excellent adjuvant effect on H5N1vaccine in a mouse model. Therefore, GSC could be used as an effective immune adjuvant for an inactivated H5N1vaccine.

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Source
http://dx.doi.org/10.1016/j.ijbiomac.2016.06.057DOI Listing

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