Baihui（DU20）-penetrating-Qubin（GB7） acupuncture can inhibit inflammatory reactions and activate signaling pathways related to proliferation after intracerebral hemorrhage.However,there is no research showing the r...Baihui（DU20）-penetrating-Qubin（GB7） acupuncture can inhibit inflammatory reactions and activate signaling pathways related to proliferation after intracerebral hemorrhage.However,there is no research showing the relationship between this treatment and cell apoptosis.Rat models of intracerebral hemorrhage were established by injecting 60 μL of autologous blood into the right side of the caudate-putamen.Six hours later,the needle traveled subcutaneously from the Baihui acupoint to Qubin acupoint.The needle was alternately rotated（180 ± 10 turns/min） manually along clockwise and counter-clockwise directions.Stimulation lasted for 7 days,and was performed three times each for 6 minutes with 6-minute intervals between stimulations.Rats intraperitoneally receiving Sonic hedgehog pathway activator,purmorphamine（1 mg/kg per day）,served as positive controls.Motor and sensory function were assessed using the Ludmila Belayev test.Extent of pathological changes were measured in the perihemorrhagic penumbra using hematoxylin-eosin staining.Apoptosis was examined by terminal deoxynucleotidyl transferase（Td T）-mediated d UTP nick end labeling assay.Expression of smoothened（Smo） and glioma-associated homolog 1（Gli1） was determined by western blot assay.Our results showed that Baihui-penetrating-Qubin acupuncture promoted recovery of motor and sensory function,reduced the apoptotic cell percentage in the perihemorrhagic penumbra,and up-regulated Smo and Gli1 expression.We conclude that Baihui-penetrating-Qubin acupuncture can mitigate hemorrhage and promote functional recovery of the brain in a rat model of intracerebral hemorrhage,possibly by activating the Sonic hedgehog pathway.展开更多
目的研究Gli1在髓母细胞瘤(MB)中的表达和作用。方法用不同浓度(正常对照组、10μmol/L组、20μmol/L组、40μmol/L组)的Gli1特异性抑制剂GANT61作用Daoy细胞,采用细胞增殖法检测Daoy细胞在GANT61作用下的增殖活性的变化;Real-time PCR...目的研究Gli1在髓母细胞瘤(MB)中的表达和作用。方法用不同浓度(正常对照组、10μmol/L组、20μmol/L组、40μmol/L组)的Gli1特异性抑制剂GANT61作用Daoy细胞,采用细胞增殖法检测Daoy细胞在GANT61作用下的增殖活性的变化;Real-time PCR法和Western blot法分别检测不同组Daoy细胞中Gli1和Bcl-2 m RNA表达量和蛋白表达量的差异。结果 GANT61作用细胞后,细胞间隙增大,异常突起增多,细胞增殖活性明显下降,与对照组相比,GANT61作用组的Daoy细胞增殖数显著降低(P<0.05),并且随着浓度的增加,增殖数显著降低(P<0.05),提示具有浓度依赖性;不同浓度GANT61组的Gli1和Bcl-2 m RNA表达量均较对照组明显下降(P<0.05),下降程度随着GNAT61浓度的增加而增加(P<0.05);不同浓度GANT61组的Gli1和Bcl-2蛋白表达水平较对照组明显下降(P<0.05),下降程度随着GANT61浓度的增加而增加(P<0.05)。结论 GANT61能通过抑制Gli1的表达,进而下调下游靶基因Bcl-2的表达,从而明显抑制MB细胞的增殖活性,达到促进MB细胞凋亡的作用。展开更多
AIM： To study the expression of Sonic hedgehog pathway-related molecules, Sonic hedgehog （Shh） and Glil in gastric carcinoma. METHODS： Expression of Shh in 56 gastric specimens including non-cancerous gastric tiss...AIM： To study the expression of Sonic hedgehog pathway-related molecules, Sonic hedgehog （Shh） and Glil in gastric carcinoma. METHODS： Expression of Shh in 56 gastric specimens including non-cancerous gastric tissues, gastric adenocarcinoma, gastric squamous cell carcinoma was detected by RT-PCR, in situ hybridization and immunohistochemistry. Expression of Glil was observed by in situ hybridization. RESULTS： The positive rate of Shh and Glil expression was 0.0%, 0.0% in non-cancerous gastric tissues while it was 66.7%, 57.8% respectively in gastric adenocarcinoma, and 100%, 100% respectively in gastric squamous cell carcinoma. There was a significant difference between the non-cancerous gastric tissues and gastric carcinoma （P 〈 0.05）. Elevated expression of Shh and Glil in gastric tubular adenocarcinoma was associated with poorly differentiated tumors while the expression was absent in gastric mucinous adenocarcinoma. CONCLUSION： The elevated expression of Shh and Glil in gastric adenocarcinoma and gastric squamous cell carcinoma shows the involvement of activated Shh signaling in the cellular proliferation of gastric carcinogenesis. It suggests Shh signaling gene may be a new and good target gene for gastric tumor diagnosis and therapy.展开更多
基金supported by the National Natural Science Foundation of China,No.30772840,81273824,and 81473764
文摘Baihui（DU20）-penetrating-Qubin（GB7） acupuncture can inhibit inflammatory reactions and activate signaling pathways related to proliferation after intracerebral hemorrhage.However,there is no research showing the relationship between this treatment and cell apoptosis.Rat models of intracerebral hemorrhage were established by injecting 60 μL of autologous blood into the right side of the caudate-putamen.Six hours later,the needle traveled subcutaneously from the Baihui acupoint to Qubin acupoint.The needle was alternately rotated（180 ± 10 turns/min） manually along clockwise and counter-clockwise directions.Stimulation lasted for 7 days,and was performed three times each for 6 minutes with 6-minute intervals between stimulations.Rats intraperitoneally receiving Sonic hedgehog pathway activator,purmorphamine（1 mg/kg per day）,served as positive controls.Motor and sensory function were assessed using the Ludmila Belayev test.Extent of pathological changes were measured in the perihemorrhagic penumbra using hematoxylin-eosin staining.Apoptosis was examined by terminal deoxynucleotidyl transferase（Td T）-mediated d UTP nick end labeling assay.Expression of smoothened（Smo） and glioma-associated homolog 1（Gli1） was determined by western blot assay.Our results showed that Baihui-penetrating-Qubin acupuncture promoted recovery of motor and sensory function,reduced the apoptotic cell percentage in the perihemorrhagic penumbra,and up-regulated Smo and Gli1 expression.We conclude that Baihui-penetrating-Qubin acupuncture can mitigate hemorrhage and promote functional recovery of the brain in a rat model of intracerebral hemorrhage,possibly by activating the Sonic hedgehog pathway.
文摘目的研究Gli1在髓母细胞瘤(MB)中的表达和作用。方法用不同浓度(正常对照组、10μmol/L组、20μmol/L组、40μmol/L组)的Gli1特异性抑制剂GANT61作用Daoy细胞,采用细胞增殖法检测Daoy细胞在GANT61作用下的增殖活性的变化;Real-time PCR法和Western blot法分别检测不同组Daoy细胞中Gli1和Bcl-2 m RNA表达量和蛋白表达量的差异。结果 GANT61作用细胞后,细胞间隙增大,异常突起增多,细胞增殖活性明显下降,与对照组相比,GANT61作用组的Daoy细胞增殖数显著降低(P<0.05),并且随着浓度的增加,增殖数显著降低(P<0.05),提示具有浓度依赖性;不同浓度GANT61组的Gli1和Bcl-2 m RNA表达量均较对照组明显下降(P<0.05),下降程度随着GNAT61浓度的增加而增加(P<0.05);不同浓度GANT61组的Gli1和Bcl-2蛋白表达水平较对照组明显下降(P<0.05),下降程度随着GANT61浓度的增加而增加(P<0.05)。结论 GANT61能通过抑制Gli1的表达,进而下调下游靶基因Bcl-2的表达,从而明显抑制MB细胞的增殖活性,达到促进MB细胞凋亡的作用。
基金Supported by the Foundation of Shandong Province Bureau of Health, No. 2005JZ001
文摘AIM： To study the expression of Sonic hedgehog pathway-related molecules, Sonic hedgehog （Shh） and Glil in gastric carcinoma. METHODS： Expression of Shh in 56 gastric specimens including non-cancerous gastric tissues, gastric adenocarcinoma, gastric squamous cell carcinoma was detected by RT-PCR, in situ hybridization and immunohistochemistry. Expression of Glil was observed by in situ hybridization. RESULTS： The positive rate of Shh and Glil expression was 0.0%, 0.0% in non-cancerous gastric tissues while it was 66.7%, 57.8% respectively in gastric adenocarcinoma, and 100%, 100% respectively in gastric squamous cell carcinoma. There was a significant difference between the non-cancerous gastric tissues and gastric carcinoma （P 〈 0.05）. Elevated expression of Shh and Glil in gastric tubular adenocarcinoma was associated with poorly differentiated tumors while the expression was absent in gastric mucinous adenocarcinoma. CONCLUSION： The elevated expression of Shh and Glil in gastric adenocarcinoma and gastric squamous cell carcinoma shows the involvement of activated Shh signaling in the cellular proliferation of gastric carcinogenesis. It suggests Shh signaling gene may be a new and good target gene for gastric tumor diagnosis and therapy.
