title: Inhibition activity of sulfated polysaccharide of Sepiella maindroni ink on matrix metalloproteinase (MMP)-2.
abstract: SIP-SII is the sulfated S. maindroni ink polysaccharide (SIP) isolated from cuttlefish Sepiella maindroni. SIP-SII weakly inhibited tumor cell growth without cytotoxicity in vitro assay. Herein, we examined the effects of SIP-SII on the expression of matrix metalloproteinase MMP-2 and MMP-9 as well as tumor cell invasion and migration. SIP-SII (0.8-500 microg/ml) significantly decreased the expression of MMP-2 activity in human ovarian carcinoma cells SKOV3 as evidenced by the gelatin zymography analysis. No significant decrease of MMP-9 was detected in the cell line after SIP-SII treatment. The expression of MMP-2 was also evaluated using Western blot analysis. The results showed that SIP-SII inhibited the expression of MMP-2 in SKOV3 and human umbilical vein vascular endothelial cells ECV304 after 24 h incubation. Furthermore, the activity of invasion and migration of SKOV3 and ECV304 cells were measured. SIP-SII displayed an inhibitory effect on the penetration of SKOV3 cells through Matrigel-coated membrane in transwell chamber. A significant inhibition of ECV304 cell migration was observed in the presence of SIP-SII. These results suggest that SIP-SII might suppress invasion and migration of carcinoma cells via inhibition of MMP-2 proteolytic activity.
authors.affiliation: School of Ocean Sciences, Shandong University at Weihai, Weihai 264209, China.
authors.forename: Subo
authors.initials: S
authors.lastname: Wang
authors.forename: Yanna
authors.initials: Y
authors.lastname: Cheng
authors.forename: Fengshan
authors.initials: F
authors.lastname: Wang
authors.forename: Lirui
authors.initials: L
authors.lastname: Sun
authors.forename: Chunhui
authors.initials: C
authors.lastname: Liu
authors.forename: Guanjun
authors.initials: G
authors.lastname: Chen
authors.forename: Yuhua
authors.initials: Y
authors.lastname: Li
authors.forename: S G
authors.initials: SG
authors.lastname: Ward
authors.forename: Xianjun
authors.initials: X
authors.lastname: Qu
mesh_terms: D000818:Animals; D002460:Cell Line; D045744:Cell Line, Tumor; D002465:Cell Movement / Q000187:drug effects; D049109:Cell Proliferation / Q000187:drug effects; D049832:Decapodiformes / Q000737:chemistry*; D042783:Endothelial Cells / Q000187:drug effects / Q000502:physiology; D004730:Endothelium, Vascular / Q000166:cytology; D006801:Humans; D020778:Matrix Metalloproteinase 2 / Q000096:biosynthesis; D061965:Matrix Metalloproteinase Inhibitors; D009361:Neoplasm Invasiveness; D011134:Polysaccharides / Q000494:pharmacology*; D014471:Umbilical Veins / Q000166:cytology
chemical_list: D061965:Matrix Metalloproteinase Inhibitors; D011134:Polysaccharides; D020778:Matrix Metalloproteinase 2