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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Fang, Liang-Hua Wang, Rui-Ping Hu, Shou-You Zhang, Li Liu, Shen-Lin |
| Description | Country affiliation: China Author Affiliation: Fang LH ( First Clinical Medical College of Nanjing University of Chinese Medicine, Nanjing 210046, China.) |
| Abstract | OBJECTIVE: To investigate the effects of Tounongsan () extract (TNSE) on proliferation and apoptosis of the human lymphoma cell line Raji and its possible mechanism of action. METHODS: The viability of TNSE-treated Raji cells was measured by a 3-(4,5-dimethyl-thiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Cell apoptosis was determined by flow cytometry. The molecular mechanisms of TNSE-mediated apoptosis were further investigated by reverse transcription-polymerase chain reaction (RT-PCR) analysis of the mRNA expression of nuclear factor κB (NF-κB), Bcl-xL, Bcl-2-associated death promoter (Bad), caspase-9 and caspase-3. Western blotting was used to detect the protein expressions of NF-κB, Bad, cleaved caspase-9 and cleaved caspase-3. RESULTS: TNSE inhibited Raji cell proliferation in dose- and time-dependent manners. After 48-h treatment with various concentrations of TNSE (125, 250 and 500 µg/mL), the apoptosis rates of Raji cell were 12.23%±1.98% (P<0.05), 20.97%±3.96% (P<0.01) and 30.4%±4.87% (P<0.01), respectively, compared with those of the control (6.02%±1.01%). RT-PCR demonstrated that NF-κB mRNA expression was significantly downregulated in Raji cells treated with 250 µg/mL TNSE for 48 h (P<0.05), while Bad, caspase-9 and caspase-3 mRNA levels were upregulated (P<0.05). Moreover, TNSE treatment resulted in downregulation of NF-κB protein expression and strikingly upregulated protein expressions of Bad, cleaved caspase-9, cleaved caspase-3 in a dose-dependent manner, as determined by Western blot. CONCLUSION: TNSE exhibits significant anti-proliferative and apoptotic effects in Raji cells, which may be involved in regulation of NF-κB and Bad, and activation of caspase-9 and caspase-3. |
| File Format | HTM / HTML |
| ISSN | 16720415 |
| Issue Number | 7 |
| Volume Number | 18 |
| e-ISSN | 19930402 |
| Journal | Chinese Journal of Integrative Medicine |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2012-07-01 |
| Publisher Place | China |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Therapeutics Apoptosis Drug Effects Drugs, Chinese Herbal Pharmacology Plant Extracts Caspase 3 Genetics Metabolism Caspase 9 Cell Proliferation Gene Expression Regulation, Neoplastic Humans Nf-kappa B Tumor Cells, Cultured Bcl-associated Death Protein Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Pharmacology (medical) Complementary and Alternative Medicine |
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