Polyacetylene Compound from Cirsium japonicum var. ussuriense Inhibited Caspase-1-mediated IL-1beta Expression.
- Author:
Hong SHIM
1
;
Jung Sun MOON
;
Sookyeon LEE
;
Dongsool YIM
;
Tae Jin KANG
Author Information
- Publication Type:Brief Communication
- Keywords: Polyacetylene compound; Anti-inflammatory activity; Caspase-1; Inflammasome; Cirsium japonicum
- MeSH: Cell Line; Cirsium; Cytokines; Macrophages; Polyacetylenes; RNA, Messenger
- From:Immune Network 2012;12(5):213-216
- CountryRepublic of Korea
- Language:English
- Abstract: Our previous report showed that polyacetylene compound, 1-Heptadecene-11, 13-diyne-8, 9, 10-triol (PA) from the root of Cirsium japonicum var. ussuriense has anti-inflammatory activity. In this study we investigated the role of the PA as inhibitor of caspase-1, which converts prointerleukin-1beta (proIL-1beta) to active IL-1beta and is activated by inflammasome involved in the inflammatory process. We tested the effect of PA on the production of pro-inflammatory cytokines, IL-1beta in murine macrophage cell line, RAW264.7. PA inhibited lipopolysaccharide (LPS)-induced IL-1beta production by macrophages at a dose dependent manner. PA also suppressed the activation of caspase-1. The mRNA level of ASC (apoptosis-associated spec-like protein containing a CARD), an important adaptor protein of inflammasome, was decreased in the PA treated group. Therefore our results suggest that the anti-inflammatory effect of PA is due to inhibit the caspase-1 activation.
