PMID- 24328676 OWN - NLM STAT- MEDLINE DCOM- 20140919 LR - 20140127 IS - 1532-2513 (Electronic) IS - 0892-3973 (Linking) VI - 36 IP - 1 DP - 2014 Feb TI - beta-sitosteryl-3-O-beta-glucopyranoside isolated from the bark of Sorbus commixta ameliorates pro-inflammatory mediators in RAW 264.7 macrophages. PG - 70-7 LID - 10.3109/08923973.2013.866956 [doi] AB - The bark of Sorbus commixta has been used in Asian traditional medicine for treatment of cough, asthma, bronchial disorders, gastritis and dropsy. However, the anti-inflammatory effect of beta-sitosteryl-3-O-beta-glucopyranoside, a major compound of the bark of S. commixta, is poorly understood. In this study, we investigated the anti-inflammatory effect and the underlying molecular mechanisms of beta-sitosteryl-3-O-beta-glucopyranoside in lipopolysaccharide (LPS)-induced RAW 264.7 cells. Prostaglandin E(2) (PGE(2)) and cytokines released from cells were measured using EIA assay kit. The expression of inducible NO synthase (iNOS) and cyclooxygenase (COX)-2, Tumor necrosis factor-alpha (TNF-alpha), interleukin-1beta (IL-1beta), and interleukin-6 (IL-6) was measured by real-time polymerase chain reaction (RT-PCR) and/or Western blot analysis. beta-sitosteryl-3-O-beta-glucopyranoside inhibited the production of nitric oxide (NO) and PGE(2) along with the expression of iNOS and COX-2 in LPS-stimulated RAW264.7 cells. In addition, beta-sitosteryl-3-O-beta-glucopyranoside reduced the release of pro-inflammatory cytokines, such as TNF-alpha, IL-1beta and IL-6. Moreover, beta-sitosteryl-3-O-beta-glucopyranoside inhibited the NF-kappaB activation induced by LPS, which was associated with the abrogation of IkappaBalpha degradation and subsequent decreases in nuclear p65 levels. The result suggested that the beta-sitosteryl-3-O-beta-glucopyranoside inhibited NO and pro-inflammatory productions by down-regulating the gene expression of pro-inflammatory mediators via the negative regulation of the NF-small ka, CyrillicB pathway in LPS-stimulated RAW 264.7 cells. FAU - Yang, Gabsik AU - Yang G AD - Department of Pharmacology, College of Oriental Medicine, Sangji University , Gangwon-do , Republic of Korea. FAU - An, Hyo-Jin AU - An HJ LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20131216 PL - England TA - Immunopharmacol Immunotoxicol JT - Immunopharmacology and immunotoxicology JID - 8800150 RN - 0 (Cytokines) RN - 0 (Inflammation Mediators) RN - 0 (Lipopolysaccharides) RN - 0 (Sitosterols) RN - 31C4KY9ESH (Nitric Oxide) RN - 5LI01C78DD (gamma-sitosterol) RN - EC 1.14.99.- (Ptgs2 protein, mouse) RN - EC 1.14.99.1 (Cyclooxygenase 2) SB - IM MH - Animals MH - Cell Line MH - Cyclooxygenase 2/immunology MH - Cytokines/immunology MH - Inflammation Mediators/*immunology MH - Lipopolysaccharides/toxicity MH - Mice MH - Nitric Oxide/immunology MH - Plant Bark/*chemistry MH - Sitosterols/chemistry/*pharmacology MH - Sorbus/*chemistry EDAT- 2013/12/18 06:00 MHDA- 2014/09/23 06:00 CRDT- 2013/12/17 06:00 PHST- 2013/12/17 06:00 [entrez] PHST- 2013/12/18 06:00 [pubmed] PHST- 2014/09/23 06:00 [medline] AID - 10.3109/08923973.2013.866956 [doi] PST - ppublish SO - Immunopharmacol Immunotoxicol. 2014 Feb;36(1):70-7. doi: 10.3109/08923973.2013.866956. Epub 2013 Dec 16.