Production, characterization, and functions of sulfated polysaccharides from zinc sulfate enriched cultivation of Antrodia cinnamomea

Abstract

This research utilized zinc sulfate enriched cultural conditions to produce sulfated polysaccharides from Antrodia cinnamomea (denoted as ZnFSPS) and physiochemically characterize functional and mechanical investigations of ZnFSPS. The maximum SPS yield reached a value of 6.68% when A. cinnamomea was fed zinc sulfate with 250 mM (denoted as Zn250). Zn250 had a maximal inhibitory effect on LPS-induced tumor necrosis factor (TNF-α) release in RAW264.7 macrophage. Zn250 contained the highest area percentage of molecular weight of 178.5, 105.1, and 1.56 kDa at values of 19.08, 15.09, and 5.04. Zn250 contained three times the sulfate content as compared with the control. Mechanism studies revealed a novel finding that Zn250 inhibited the LPS-induced RAW264.7 macrophage inflammation and selectively blocked pAKT, pERK and p38. Zn250 also attenuated the LPS-induced IkB-α degradation. In addition, ZnFSPS interfered with lung cancer cell H1975 TGFRI/FAK/Slug signaling. These results suggest ZnFSPS plays roles in regulating inflammatory and anti-lung cancer activity.