ABSTRACT
s:Aim To study the effects of total gluco-sides of paeony ( TGP) on the differentiation of co-cul-tured osteoclasts and the mechanisms of how TGP influ-ences the osteoclasts. Methods The synovial fibro-blasts and monocytes of peripheral blood in adjuvant-induced arthritic rats were separated and co-cultured to induce osteoclasts. The cells were treated with different TGP dosages (5, 50, 500, 5 000 mg·L-1 , and 50 g ·L-1 ) for 48 h. The proliferation, the TRAP activi-ty, and the bone resorption of osteoclasts were ob-served. The levels of IL-1,TNF-α,M-CSF and RANKL in the supernatants of osteoclasts were detected using ELISA. Meanwhile, the expression of ERK, JNK and p38 was detected by real time PCR. Results The ex-periments revealed that 50, 500, 5 000 mg·L-1 TGP inhibited the osteoclast growth, the TRAP activity, and the resorption pit area in a dose-dependent manner. TGP also inhibited the levels of IL-1 , TNF-α, M-CSF and RANKL in the supernatants and the expression of ERK, JNK and p38 in osteoclasts. The appropriate concentrations were 50 mg·L-1 to 5 000 mg·L-1 and had dose-dependent effects within this range. Conclu-sions TGP regulates the differentiation and activity of co-cultured osteoclasts. The effects of TGP are related to its inhibiting the cytokines secretion of synovial fi-broblasts and the activity of MAPK pathways.
ABSTRACT
Objective To investigate effect of Qishen-Qinggan decoction on proliferation and apoptosis of human hepatocellular carcinoma cellline SMMC-7721.Methods SMMC-7721 cells were cultivated in vitro.Logarithmic growth phase cells were divided into a drug intervention group and a control group.SMMC-7721 cells were treated with Qishen-Qinggan decoction of 0.135、0.27、0.54、1.08、2.16 g/ml respectively for 12、24、48 hours in the drug intervention group while the control group remained untreated.The inhibition rate of SMMC-7721 cells were detected by MTT assay,cell apoptotic rate were measured by flow cytometry analysis.Results Qishen-Qinggan decoction of 0.135,0.27,0.54,1.08,2.16 g/ml had a significantly inhibitory effect on SMMC-7721 cells in a dose and time dependent manner.OD values of 12 hours were 0.89±0.05,0.85±0.05,0.80±0.06,0.78± 0.02,0.69±0.07,OD values of 24 hours were 0.77±0.07,0.74±0.07,0.59±0.07,0.50±0.09,0.39±0.08,OD values of 48 hours were 0.78±0.05,0.61±0.08,0.44±0.10,0.39±0.08,0.34±0.07 respectively.Each drug intervention group had significant difference compared with control group.Qishen-Qinggan decoction of 0.27,0.54 g/ml could induce apoptosis of SMMC-7721 were 11.19 ± 2.23,15.69 ± 2.51,compared with control group of 1.41 ± 0.22.Apoptotic rates of Qishen-Qinggan decoction of 1.08 g/ml had extremely significant difference with the control group (41.83 ± 7.11 vs 1.41 ± 0.22).Conclusion Qishen-Qinggan decoction could inhibit the proliferation of SMMC-7721 cells probably by inducing cell apoptosis.