PMID- 12060529 OWN - NLM STAT- MEDLINE DCOM- 20030916 LR - 20061115 IS - 1671-4083 (Print) IS - 1671-4083 (Linking) VI - 23 IP - 6 DP - 2002 Jun TI - Effects of Coriolus versicolor polysaccharide B on monocyte chemoattractant protein 1 gene expression in rat. PG - 539-43 AB - AIM: To investigate the effect of Coriolus versicolor polysaccharide B (CVPS-B), a new water-soluble component of polysaccharides from the fungus Coriolus versicolor (Fr) L on monocyte chemoattractant protein-1 (MCP-1) gene expression in rat splenocytes. METHODS: Expression of MCP-1 mRNA in rat splenocytes was examined by reverse transcription-polymerase chain reaction (RT-PCR) with beta- actin as an internal standard. Sequencing of RT-PCR products was performed to confirm their specificity in MCP-1 gene composition. RESULTS: (1) Without pre-treatment of lipopolysaccharide (LPS), the relative MCP-1 mRNA expression ratios (MCP-1/beta-actin) for the saline control group and for CVPS-B groups in 3 different doses (10, 20, and 30 mg . kg-1 . d-1, ip, for 4 d) were 1.4 +/- 0.3, 1.6 +/- 0.4, 1.7 +/- 0.5, and 1.5 +/- 0.4, respectively (P > 0.05); (2) LPS (10 microg . kg-1, ip) enhanced the expression of MPC-1 mRNA by the ratio of 114 %; (3) pre-treatment with CVPS-B of 4 different doses (5, 10, 30, and 50 mg . kg-1 . d-1, ip, for 4 d) decreased the LPS induced expression of MPC-1 mRNA by the ratios of 51 %, 70 %, 84 %, and 99 %, respectively (n = 6). CONCLUSION: In a dose-related fashion, CVPS-B inhibited the expression of MCP-1 mRNA induced by LPS in the rat splenocytes, but did not significantly affect the expression of MPC-1 mRNA in the normal rat. FAU - Song, Lie-Chang AU - Song LC AD - Laboratory for Molecular Pharmacology, Department of Hygiology, First Military Medical University, Guangzhou 510515, China. songlc@fimmu.edu.cn FAU - Chen, Hai-Sheng AU - Chen HS FAU - Lou, Ning AU - Lou N FAU - Song, Chang AU - Song C FAU - Zeng, Jun AU - Zeng J FAU - Fu, Ting-Huan AU - Fu TH LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Acta Pharmacol Sin JT - Acta pharmacologica Sinica JID - 100956087 RN - 0 (Chemokine CCL2) RN - 0 (Lipopolysaccharides) RN - 0 (Polysaccharides) RN - 0 (RNA, Messenger) SB - IM MH - Animals MH - Chemokine CCL2/*biosynthesis/genetics MH - Dose-Response Relationship, Drug MH - Lipopolysaccharides/pharmacology MH - Male MH - Polyporales/*chemistry MH - Polysaccharides/*pharmacology MH - RNA, Messenger/biosynthesis/genetics MH - Rats MH - Rats, Wistar MH - Spleen/cytology/metabolism EDAT- 2002/06/13 10:00 MHDA- 2003/09/17 05:00 CRDT- 2002/06/13 10:00 PHST- 2002/06/13 10:00 [pubmed] PHST- 2003/09/17 05:00 [medline] PHST- 2002/06/13 10:00 [entrez] PST - ppublish SO - Acta Pharmacol Sin. 2002 Jun;23(6):539-43.