| RRC ID |
57839
|
| Author |
Miyazaki Y, Iwaihara Y, Bak J, Nakano H, Takeuchi S, Takeuchi H, Matsui T, Tachikawa D.
|
| Title |
The cooperative induction of macrophage activation by fucoidan derived from Cladosiphon okamuranus and β-glucan derived from Saccharomyces cerevisiae.
|
| Journal |
Biochem Biophys Res Commun
|
| Abstract |
The present study investigated immune stimulatory effects of Cladosiphon okamuranus-derived fucoidan to activate murine macrophage-like cell line RAW264, and the functional relationship with zymosan, a Saccharomyces cerevisiae-derived β-glucan. The production of nitric oxide (NO) and tumor necrosis factor-α (TNF-α) in RAW264 cells were remarkably enhanced in the presence of 10 μg/mL fucoidan, and the stimulatory effects of fucoidan were maximally augmented in combinational treatment with 500 ng/mL zymosan, whereas any TLR ligands had no those effects. Confocal microscopic analyses suggested that fucoidan bound on plasma membrane, and it was estimated that some cell surface molecules acted as receptor for fucoidan because cytochalasin D, an inhibitor of phagocytosis, did not affect the immune enhancing activities, whereas methyl-β-cyclodextrin (MβCD), a general agent for disruption of lipid rafts, diminished that. Furthermore, it was revealed that the additive effects of zymosan on the immune activation with fucoidan was thought to be mediated by dectin-1 based on the results with dectin-1-knockdown RAW264 cells. All of results suggested that fucoidan and some kinds of β-glucan would cooperatively reinforce the activity of innate immune cells via interactive receptor crosstalk.
|
| Volume |
516(1)
|
| Pages |
245-250
|
| Published |
2019-8-13
|
| DOI |
10.1016/j.bbrc.2019.06.010
|
| PII |
S0006-291X(19)31120-9
|
| PMID |
31221482
|
| MeSH |
Animals
Drug Synergism
Macrophage Activation / drug effects*
Macrophages / drug effects*
Macrophages / immunology
Mice
Phaeophyta / chemistry
Polysaccharides / chemistry
Polysaccharides / pharmacology*
RAW 264.7 Cells
Saccharomyces cerevisiae / chemistry
Seaweed / chemistry
beta-Glucans / chemistry
beta-Glucans / pharmacology*
|
| IF |
2.985
|
| Times Cited |
0
|
| Resource |
| Human and Animal Cells |
RAW 264(RCB0535) |
