Publication date: April 2017
Source:International Journal of Biological Macromolecules, Volume 97
Author(s): Tao Qin, Zhe Ren, Yifan Huang, Yulong Song, Dandan Lin, Jian Li, Yufang Ma, Xiuqin Wu, Fuan Qiu, Qi Xiao
In this study, polysaccharides extracted from Hericium erinaceus were modified to obtain its nine selenium derivatives, sHEP1-sHEP9. Their structures were identified, yields and selenium contents were determined, the phenotypic and functional maturation of murine bone marrow-derived dendritic cells (DCs) and relevant mechanisms were compared taking unmodified HEP as control. The results revealed that the selenylation were successful. sHEP1, sHEP2 and sHEP8 treatment of DCs increased their surface expression of MHC-II and CD86 and indicated that sHEP1, sHEP2 and sHEP8 induced DC maturation. Furthermore, sHEP2 and sHEP8 also significantly decreased DCs endocytosis and significantly enhanced cytokine (IL-12 and IFN-γ) production. In line with TLR4 activation, sHEP2 increased the phosphorylation of ERK, p38, and JNK, and the nuclear translocation of p-c-Jun, p-CREB, and c-Fos. sHEP2 also activated NF-κB signaling, as evidenced by degradation of IκBα/β and nuclear translocation of p65 and p50. Together, these results suggest that sHEP is a strong immunostimulant.
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from #AlexandrosSfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2z8PLPw via IFTTT
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Chapter 1 Introduction Background of the Study Cockroaches are common pests in the tropics. They have been known to cause allergic reactions...
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