@article { author = {}, title = {Steroidal Saponins from Paris polyphylla Suppress Adhesion, Migration and Invasion of Human Lung Cancer A549 Cells Via Down-Regulating MMP-2 and MMP-9}, journal = {Asian Pacific Journal of Cancer Prevention}, volume = {15}, number = {24}, pages = {10911-10916}, year = {2014}, publisher = {West Asia Organization for Cancer Prevention (WAOCP), APOCP's West Asia Chapter.}, issn = {1513-7368}, eissn = {2476-762X}, doi = {}, abstract = {Background: Tumor metastases are the main reasons for oncotherapy failure. Paris polyphylla (Chinese name:Chonglou) has traditionally been used for its anti-cancer actions. In this article, we focus on the regulation ofhuman lung cancer A549 cell metastases and invasion by Paris polyphylla steroidal saponins (PPSS). Materialsand Methods: Cell viability was evaluated in A549 cells by MTT assay. Effects of PPSS on invasion and migrationwere investigated by wound-healing and matrigel invasion chamber assays. Adhesion to type IV collagen andlaminin was evaluated by MTT assay. Expression and protease activity of two matrix metalloproteinases (MMPs),MMP-2 and MMP-9, were analyzed by Western blotting and gelatin zymography, respectively. Results: PPSSexerted growth inhibitory effects on A549 cells, and effectively inhibited A549 cell adhesion, migration andinvasion in a concentration-dependent manner. Western blotting and gelatin zymography analysis revealed thatPPSS inhibited the expression and secretion of MMP-2 and MMP-9 in A549 cells. Conclusions: PPSS has thepotential to suppress the migration, adhesion and invasion of A549 cells. PPSS could be a potential candidatefor interventions against lung cancer metastases.}, keywords = {Paris polyphylla,steroidal saponins,Lung cancer,Metastasis,MMP-2,MMP-9}, url = {https://journal.waocp.org/article_30361.html}, eprint = {https://journal.waocp.org/article_30361_e5f8b545514bfaee5bfeb0383d383988.pdf} }