目的:探讨白藜芦醇对高脂饲养大鼠肾脏的保护作用及对核因子-κB(NF-κB)活性和单核细胞趋化蛋白质(MCP-1)表达的影响。方法:30只雄性Wistar大鼠随机分为正常对照组、高脂喂养组和白藜芦醇治疗组。喂养16周后,检测各组大鼠的血糖(FPG),...目的:探讨白藜芦醇对高脂饲养大鼠肾脏的保护作用及对核因子-κB(NF-κB)活性和单核细胞趋化蛋白质(MCP-1)表达的影响。方法:30只雄性Wistar大鼠随机分为正常对照组、高脂喂养组和白藜芦醇治疗组。喂养16周后,检测各组大鼠的血糖(FPG),甘油三脂(TG),胆固醇(TC),肌酐(Scr),尿素氮(BUN)水平及24h尿蛋白定量(uPro);免疫组织化学法检测肾组织中核因子(NF-κB)和单核细胞趋化蛋白质-1(MCP-1)的表达。结果:白藜芦醇治疗组大鼠体内BS、TG、TC无显著差异;但24 h uPro、Scr、BUN均明显降低,肾组织NF-κB和MCP-1的表达减弱。结论:白藜芦醇可改善高脂大鼠的肾脏功能,可能与其抑制NF-κB活性、降低MCP-1的表达有关。展开更多
Chuankezhi(CKZ),a new Chinese medicine,plays an important role in immunoregulation.Cytokineinduced killer(CIK)cells have been commonly used for immunotherapy in recent years.In this study,we aimed to investigate the i...Chuankezhi(CKZ),a new Chinese medicine,plays an important role in immunoregulation.Cytokineinduced killer(CIK)cells have been commonly used for immunotherapy in recent years.In this study,we aimed to investigate the immunoregulatory effect of CKZ on CIK cells.Peripheral blood monocytes were isolated from healthy donors,and CIK cells were generated by culturing monocytes with interferon-gamma(IFN-γ)and interleukin 2.Different concentrations of CKZ were added on day 2.After incubation for 14days in culture,the antitumor effects of CIK cells were measured by cytotoxicity assay.Flow cytometry was used to explore the effect of CKZ on CIK cell immunophenotype,intracellular cytokine production,and apoptosis.The effect of CKZ on the antitumor activity of CIK cells in nude mice was also investigated.CKZ increased the percentage of CD3+CD56+CIK cells but did not significantly change the percentage of CD4+,CD8+,or CD4+CD25+CIK cells.CKZ-conditioned CIK cells showed a greater ability to kill tumor cells,as well as a higher frequency of IFN-γand TNF-αproduction,compared with the CIK cells in the control group.CKZ also suppressed the apoptosis of CIK cells in vitro.Furthermore,CKZ combined with CIK cells had a stronger suppressive effect on tumor growth in vivo than the CIK,CKZ,or normal saline control groups.Our results indicate that CKZ enhances the antitumor activity of CIK cells and is a potential medicine for tumor immunotherapy.展开更多
Though Hongbaekjeong(HBJ),a hebal mixture of three medicinal plants,has been traditionally used for arthritis and muscular pain,its scientific evidence still remains unclear.Thus,in the present study,analgesic and ant...Though Hongbaekjeong(HBJ),a hebal mixture of three medicinal plants,has been traditionally used for arthritis and muscular pain,its scientific evidence still remains unclear.Thus,in the present study,analgesic and anti-inflammatory mechanism of HBJ was evaluated in vitro and in vivo.HBJ significantly reduced NO production and prostaglandin E2(PGE2)release and also attenuated the expression of cyclooxygenase 2(COX-2)in lipopolysaccharides(LPS)and interferon(IFN)-c treated RAW 264.7 cells.Furthermore,HBJ abrogated the production of proinflammatory cytokines such as interleukin(IL)1b,IL-6,IL-8 and monocyte chemoattractant protein-1(MCP-1)in LPS and IFN-c treated RAW 264.7 cells.In addition,HBJ significantly decreased the number of writhing syndrome induced by acetic acid,and also increased latency in hot-plate method and tail flick test in mice.Consistently,HBJ significantly reduced the edema volume in the hind paw of the rats with arthritis induced by Freund’s complete adjuvant(FCA)compared to untreated control.Collectively,our findings demonstrate the antiinflammatory and analgesic potential of HBJ via inhibition of proinflammatory cytokines and PGE2 release for treatment of arthritis and muscular pain.展开更多
文摘目的:探讨白藜芦醇对高脂饲养大鼠肾脏的保护作用及对核因子-κB(NF-κB)活性和单核细胞趋化蛋白质(MCP-1)表达的影响。方法:30只雄性Wistar大鼠随机分为正常对照组、高脂喂养组和白藜芦醇治疗组。喂养16周后,检测各组大鼠的血糖(FPG),甘油三脂(TG),胆固醇(TC),肌酐(Scr),尿素氮(BUN)水平及24h尿蛋白定量(uPro);免疫组织化学法检测肾组织中核因子(NF-κB)和单核细胞趋化蛋白质-1(MCP-1)的表达。结果:白藜芦醇治疗组大鼠体内BS、TG、TC无显著差异;但24 h uPro、Scr、BUN均明显降低,肾组织NF-κB和MCP-1的表达减弱。结论:白藜芦醇可改善高脂大鼠的肾脏功能,可能与其抑制NF-κB活性、降低MCP-1的表达有关。
基金National NaturalScience Foundation of China(No.u0772002,No.30700985,No.30973398)Guangdong Natural Science Foundation(No.925100890).
文摘Chuankezhi(CKZ),a new Chinese medicine,plays an important role in immunoregulation.Cytokineinduced killer(CIK)cells have been commonly used for immunotherapy in recent years.In this study,we aimed to investigate the immunoregulatory effect of CKZ on CIK cells.Peripheral blood monocytes were isolated from healthy donors,and CIK cells were generated by culturing monocytes with interferon-gamma(IFN-γ)and interleukin 2.Different concentrations of CKZ were added on day 2.After incubation for 14days in culture,the antitumor effects of CIK cells were measured by cytotoxicity assay.Flow cytometry was used to explore the effect of CKZ on CIK cell immunophenotype,intracellular cytokine production,and apoptosis.The effect of CKZ on the antitumor activity of CIK cells in nude mice was also investigated.CKZ increased the percentage of CD3+CD56+CIK cells but did not significantly change the percentage of CD4+,CD8+,or CD4+CD25+CIK cells.CKZ-conditioned CIK cells showed a greater ability to kill tumor cells,as well as a higher frequency of IFN-γand TNF-αproduction,compared with the CIK cells in the control group.CKZ also suppressed the apoptosis of CIK cells in vitro.Furthermore,CKZ combined with CIK cells had a stronger suppressive effect on tumor growth in vivo than the CIK,CKZ,or normal saline control groups.Our results indicate that CKZ enhances the antitumor activity of CIK cells and is a potential medicine for tumor immunotherapy.
基金supported by the National Research Foundation of Korea(NRF)grant funded by the Korean Ministry of Education,Science and Technology(MEST](20120005755)
文摘Though Hongbaekjeong(HBJ),a hebal mixture of three medicinal plants,has been traditionally used for arthritis and muscular pain,its scientific evidence still remains unclear.Thus,in the present study,analgesic and anti-inflammatory mechanism of HBJ was evaluated in vitro and in vivo.HBJ significantly reduced NO production and prostaglandin E2(PGE2)release and also attenuated the expression of cyclooxygenase 2(COX-2)in lipopolysaccharides(LPS)and interferon(IFN)-c treated RAW 264.7 cells.Furthermore,HBJ abrogated the production of proinflammatory cytokines such as interleukin(IL)1b,IL-6,IL-8 and monocyte chemoattractant protein-1(MCP-1)in LPS and IFN-c treated RAW 264.7 cells.In addition,HBJ significantly decreased the number of writhing syndrome induced by acetic acid,and also increased latency in hot-plate method and tail flick test in mice.Consistently,HBJ significantly reduced the edema volume in the hind paw of the rats with arthritis induced by Freund’s complete adjuvant(FCA)compared to untreated control.Collectively,our findings demonstrate the antiinflammatory and analgesic potential of HBJ via inhibition of proinflammatory cytokines and PGE2 release for treatment of arthritis and muscular pain.
