Effects and mechanisms of curcumin and basil polysaccharide on the invasion of SKOV3 cells and dendritic cells.
In the present study, a polysaccharide extract was obtained from Ocimum basilicum (basil polysaccharide, BPS) and the effects of curcumin and BPS on the invasion activity of the SKOV3 ovarian cancer cells and human monocyte-derived dendritic cells (DCs) were investigated. SKOV3 cells and immature or mature DCs were treated with 50 µM curcumin or 100 µg/ml BPS. A transwell invasion assay demonstrated that curcumin and BPS differentially regulate the invasion of SKOV3 cells and DCs. Curcumin significantly decreased the invasion of SKOV3 cells and immature and mature DCs, while BPS only decreased SKOV3 cell invasion. Osteopontin (OPN) mRNA and protein expression were significantly reduced in curcumin and BPS-treated SKOV3 cells and curcumin-treated DCs. Furthermore, flow cytometry showed that curcumin significantly inhibited the surface expression of CD44 in SKOV3 cells and DCs, while BPS had a minimal effect on CD44 expression. Matrix metallopeptidase-9 (MMP-9) mRNA and protein expression were also reduced in all curcumin-treated cells and BPS-treated SKOV3 cells. The results indicated that curcumin and BPS regulated invasion of SKOV3 cells and DCs by distinctly downregulating OPN, CD44 and MMP-9 expression. Therefore, Curcumin and BPS may be suitable candidates for DC-based vaccines for ovarian cancer immunotherapy.
Institute of Basic Medical Sciences, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China.
Jing
J
Lv
Qianqian
Q
Shao
Huayang
H
Wang
Huan
H
Shi
Ting
T
Wang
Wenjuan
W
Gao
Bingfeng
B
Song
Guangjuan
G
Zheng
Beihua
B
Kong
Xun
X
Qu
D000818:Animals; D015153:Blotting, Western; D002465:Cell Movement / Q000187:drug effects; D049109:Cell Proliferation / Q000187:drug effects; D002478:Cells, Cultured; D003474:Curcumin / Q000494:pharmacology*; D003713:Dendritic Cells / Q000166:cytology* / Q000187:drug effects / Q000378:metabolism; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D005434:Flow Cytometry; D006801:Humans; D018960:Hyaluronan Receptors / Q000235:genetics / Q000378:metabolism; D020780:Matrix Metalloproteinase 9 / Q000235:genetics / Q000378:metabolism; D051379:Mice; D009000:Monocytes / Q000166:cytology* / Q000187:drug effects / Q000378:metabolism; D009361:Neoplasm Invasiveness; D018649:Ocimum basilicum / Q000737:chemistry*; D053495:Osteopontin / Q000235:genetics / Q000378:metabolism; D010051:Ovarian Neoplasms / Q000188:drug therapy / Q000378:metabolism / Q000473:pathology*; D010936:Plant Extracts / Q000494:pharmacology*; D011134:Polysaccharides / Q000494:pharmacology*; D012333:RNA, Messenger / Q000235:genetics; D060888:Real-Time Polymerase Chain Reaction; D020133:Reverse Transcriptase Polymerase Chain Reaction
D018960:Hyaluronan Receptors; D010936:Plant Extracts; D011134:Polysaccharides; D012333:RNA, Messenger; D053495:Osteopontin; D020780:Matrix Metalloproteinase 9; D003474:Curcumin