Effects of the Linear Fragments of Beta-(1→3)-Glucans on Cytokine Production in vitro
- Authors: Akhapkina I.G.1, Antropova A.B.1, Akhmatov E.A.1, Zheltikova T.M.1
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Affiliations:
- Mechnikov Research Institute for Vaccines and Sera
- Issue: Vol 83, No 8 (2018)
- Pages: 1002-1006
- Section: Article
- URL: https://journals.rcsi.science/0006-2979/article/view/151705
- DOI: https://doi.org/10.1134/S0006297918080114
- ID: 151705
Cite item
Abstract
Beta-glucans, homopolysaccharides composed of 3,6-branching β-(1→3)-D-glucan chains, attract great interest as inducers of cytokine synthesis. In this work, we studied the ability of linear fragments of beta-glucan chains to activate cytokine synthesis. Synthetic nona-β-(1→3)-D-glucoside (SO) representing a linear fragment of beta-glucan chain, endotoxin (ED), and natural β-(1→3)-D-glucan (GL) were tested for their role as inducers of cytokines in whole peripheral blood cultures collected from 17 individuals. The concentrations of IL-12p70, IFN-γ, IL-2, IL-10, IL-8, IL-6, IL-4, IL-5, IL-1β, TNF-α, and TNF-β were measured in the supernatants after 2, 24, and 48 h of cell culturing. SO, ED, and GL stim- ulated production of pro-inflammatory IFN-γ, IL-1β, IL-2, IL-6, IL-8, TNF-α and anti-inflammatory IL-10. The high- est levels of biosynthesis after stimulation with SO were registered for IL-6, IL-8, and TNF-α. SO stimulated production of all cytokines (except IFN-γ) to a lesser extent than ED and GL. The IFN-γ/IL-10 (Th1/Th2) ratios after 24 and 48 h of culturing were 3.1 and 7.5 for SO; 0.03 and 0.1 for GL; and 0.06 and 0.2 for ED, respectively. The results indicate that lin- ear fragments of beta-glucans cause a more pronounced shift of immune response towards the pro-inflammatory (Th1) type than beta-glucan itself.
About the authors
I. G. Akhapkina
Mechnikov Research Institute for Vaccines and Sera
Author for correspondence.
Email: isun17@yandex.ru
Russian Federation, Moscow, 105064
A. B. Antropova
Mechnikov Research Institute for Vaccines and Sera
Email: isun17@yandex.ru
Russian Federation, Moscow, 105064
E. A. Akhmatov
Mechnikov Research Institute for Vaccines and Sera
Email: isun17@yandex.ru
Russian Federation, Moscow, 105064
T. M. Zheltikova
Mechnikov Research Institute for Vaccines and Sera
Email: isun17@yandex.ru
Russian Federation, Moscow, 105064