目的:探讨趋化因子CCL21、E选择素(E-selectins)、热休克蛋白90(heat shock protein 90,Hsp90)在实验性牙周炎大鼠牙周组织中的表达及意义。方法:选取40只10周龄雄性Wistar大鼠,随机分为4组,每组10只。A、B、C组均建立牙周炎模型,其余1...目的:探讨趋化因子CCL21、E选择素(E-selectins)、热休克蛋白90(heat shock protein 90,Hsp90)在实验性牙周炎大鼠牙周组织中的表达及意义。方法:选取40只10周龄雄性Wistar大鼠,随机分为4组,每组10只。A、B、C组均建立牙周炎模型,其余10只为空白对照组。A、B、C组分别于牙周基础治疗后4、8、12周处死并取第一、二磨牙间牙周组织进行CCL21、E-selectins、Hsp90 mRNA和蛋白表达检测。采用SPSS 25.0软件包对数据进行统计学分析。结果:A、B、C组牙周附着水平显著大于对照组(P<0.05);牙周基础治疗后,牙周附着水平呈先升高后降低趋势,牙周组织中CCL21、E-selectins、Hsp90 mRNA以及蛋白相对表达量呈降低趋势(P<0.05)。结论:CCL21、E-selectins、Hsp90mRNA在牙周炎组织中表达上调,随着牙周局部治疗,其表达水平逐渐降低。展开更多
OBJECTIVE： To investigate the association of E-selectin $128R polymorphisms with ischemic stroke. DATA SOURCES： A computer-based online search was conducted in PubMed, Elsevier, Ovid Database, the China National Kno...OBJECTIVE： To investigate the association of E-selectin $128R polymorphisms with ischemic stroke. DATA SOURCES： A computer-based online search was conducted in PubMed, Elsevier, Ovid Database, the China National Knowledge Infrastructure, and Wanfang Database between January 1998 and December 2010. STUDY SELECTION： Case-controlled studies addressing the association of the E-selectin polymorphism and ischemic stroke were included in this review. The genotype distribution complied with the Hardy-Weinberg genetic equilibrium. The included reports were evaluated by two authors for strict quality screening. Meta-analysis software, REVMAN 5.1, was used to investigate heterogeneity, pooled odds ratio （OR） and 95% confidence interval （CO in individual studies. MAIN OUTCOME MEASURES： Genotype and allele distributions at the E-selectin $128R site. RESULTS： Six case-controlled studies were included after screening and application of inclusion and exclusion criteria. There was no heterogeneity in the genotype and allele frequencies, and no publication bias was found. Meta-analysis of the pooled data showed that the OR value of the （AC＋CC）/AA genotype was 1.93 （95% CI： 1.55 2.41, Z= 5.80, P 〈 0.000 01）, and the ORfor the C/A allele was 1.80 （95% CI： 1.47 2.22, Z= 5.59, P 〈 0.000 01） in the ischemic stroke group, compared with control group. Results of pooled data in Chinese subjects showed that the ORvalue of （AC＋CC）/AA was 2.36 （95% CI： 1.68 3.31, Z = 4.99, P 〈 0.000 01）, and the OR value of the C/A allele was 2.25 （95% CI： 1.63 3.12, Z= 4.89, P 〈 0.000 01）. CONCLUSION： Polymorphism of E-selectin S128R was significantly associated with susceptibility to ischemic stroke; the AC and CC genotypes as well as the C allele may be factors associated with susceptibility to ischemic stroke.展开更多
AIM： To study the expression levels of E-selectin, integrin β1 and immunoglobulin supperfamily memberintercellular adhesion molecule-1 （ICAM-1） in human gastric carcinoma cells, and to explore the relationship bet...AIM： To study the expression levels of E-selectin, integrin β1 and immunoglobulin supperfamily memberintercellular adhesion molecule-1 （ICAM-1） in human gastric carcinoma cells, and to explore the relationship between these three kinds of cell adhesion molecules and gastric carcinoma. METHODS： The serum contents of E-selectin, integrin β1 and ICAM-1 were detected by enzyme-linked immunosorbent assay （ELISA）, in 47 healthy individuals （control group） and in 57 patients with gastric carcinoma （gastric carcinoma group） respectively prior to operation and 7 d after operation. RESULTS： The serum E-selectin, ECAM-1 and integrin β1 were found to be expressed in both control and gastric carcinoma groups. However, they were highly expressed in patients with gastric carcinoma patients before operation or with unresectable tumours. The expression levels of ICAM-1 and integrin β1 were significantly higher in gastric carcinoma patients than in controls （P 〈 0.01）. A comparison of the E-selectin levels between the two groups showed statistically insignificant differnce （P = 0.64）. In addition, the expression levels were all decreased substantially in the postoperative patients subjected to radical resection of the tumours, indicating that the high level expressions of these compounds might be the important factor for predicting the prognosis of these patients. CONCLUSION： Serum E-selectin, ICAM-1 and integrin β1 expression levels are probably related to the metastasis and relapse of gastric cancer.展开更多
Purpose: To find the effect of lumbrokinase (LK) on P-selectin and E-selectin in ischemic rats. Methods: Male healthy Spragur-Dawley rats weighing 180-220 g (n=90) were divided into 4 groups: (1) normal control group ...Purpose: To find the effect of lumbrokinase (LK) on P-selectin and E-selectin in ischemic rats. Methods: Male healthy Spragur-Dawley rats weighing 180-220 g (n=90) were divided into 4 groups: (1) normal control group (n=5), (2) sham-operated group (n=35), (3) ischemic group (n=35), (4) LK group (n=15). LK 10mg/kg (2000UK activity of LK) was given by intraperitoneal injection in the LK group 30 minutes before experiment. Same volume of normal saline was given in the sham-operated group and ischemic group. The ischemic model was made by modified Haruo Nagasawa's method. Immunohistochemistry was used to observe the P-selectin and E-selectin positive cells in the ischemic region. Results: P-selectin and E-selectin positive cells in ischemic regions were observed in the ischemic group, and the peak of expression was at 6 hours and 12 hours, respectively. The similar changes were not observed in normal control group. There were only a few positive cells in the sham-operated group. In LK group, the P-selectin and E-selectin positive cells were significantly less than those in the ischemic group (P<0.05 at 3 hours after the onset, P<0.01 at 6 hours and P<0.01 at 12 hours, respectively). Conclusions: LK might significantly decrease the immunoreactions of P-selectin and E-selectin in ischemic lesion.展开更多
Objective: To study the significance of E-selectin andits ligand-sLeX in the metastasis of hepatocellularcarcinoma (HCC).Methods: Flow cytometry and immunohistochemistrywere used to detect the expression of E-selectin...Objective: To study the significance of E-selectin andits ligand-sLeX in the metastasis of hepatocellularcarcinoma (HCC).Methods: Flow cytometry and immunohistochemistrywere used to detect the expression of E-selectin and itsligand-sLeX in both HCC cell lines and human HCCtissues.Results: The positive rate of E-selectin in vascular en-dothelial cells adjacent to cancer was 67.9% (19/28). Theexpression of E-selectin in tumors accompanied withemboli or satellite foci was significantly higher than thatin tumors without emboli or satellite foci (P<0.05),and it was not related to tumor size, tumor capsule,AFP content, and the degree of differentiation. Thepositive expression of sLeX in SMMU-7721, PLF/PRF/5 and HepGⅡ cell lines was 7.03%, 63.35% and97.29% respectively. The positive cells of sLeX mainlydistributed in the margin of tumor tissues. The positiveexpression of sLeX in HCC cells in emboli or invasivetumor tissues was much higher than in primary foci.Conclusion: E-selectin and its ligand-sLeX are closelycorrelated with the metastasis of HCC.展开更多
文摘OBJECTIVE： To investigate the association of E-selectin $128R polymorphisms with ischemic stroke. DATA SOURCES： A computer-based online search was conducted in PubMed, Elsevier, Ovid Database, the China National Knowledge Infrastructure, and Wanfang Database between January 1998 and December 2010. STUDY SELECTION： Case-controlled studies addressing the association of the E-selectin polymorphism and ischemic stroke were included in this review. The genotype distribution complied with the Hardy-Weinberg genetic equilibrium. The included reports were evaluated by two authors for strict quality screening. Meta-analysis software, REVMAN 5.1, was used to investigate heterogeneity, pooled odds ratio （OR） and 95% confidence interval （CO in individual studies. MAIN OUTCOME MEASURES： Genotype and allele distributions at the E-selectin $128R site. RESULTS： Six case-controlled studies were included after screening and application of inclusion and exclusion criteria. There was no heterogeneity in the genotype and allele frequencies, and no publication bias was found. Meta-analysis of the pooled data showed that the OR value of the （AC＋CC）/AA genotype was 1.93 （95% CI： 1.55 2.41, Z= 5.80, P 〈 0.000 01）, and the ORfor the C/A allele was 1.80 （95% CI： 1.47 2.22, Z= 5.59, P 〈 0.000 01） in the ischemic stroke group, compared with control group. Results of pooled data in Chinese subjects showed that the ORvalue of （AC＋CC）/AA was 2.36 （95% CI： 1.68 3.31, Z = 4.99, P 〈 0.000 01）, and the OR value of the C/A allele was 2.25 （95% CI： 1.63 3.12, Z= 4.89, P 〈 0.000 01）. CONCLUSION： Polymorphism of E-selectin S128R was significantly associated with susceptibility to ischemic stroke; the AC and CC genotypes as well as the C allele may be factors associated with susceptibility to ischemic stroke.
基金the Science and Technology Key Project of Zhejiang Province, No. 2002c33015
文摘AIM： To study the expression levels of E-selectin, integrin β1 and immunoglobulin supperfamily memberintercellular adhesion molecule-1 （ICAM-1） in human gastric carcinoma cells, and to explore the relationship between these three kinds of cell adhesion molecules and gastric carcinoma. METHODS： The serum contents of E-selectin, integrin β1 and ICAM-1 were detected by enzyme-linked immunosorbent assay （ELISA）, in 47 healthy individuals （control group） and in 57 patients with gastric carcinoma （gastric carcinoma group） respectively prior to operation and 7 d after operation. RESULTS： The serum E-selectin, ECAM-1 and integrin β1 were found to be expressed in both control and gastric carcinoma groups. However, they were highly expressed in patients with gastric carcinoma patients before operation or with unresectable tumours. The expression levels of ICAM-1 and integrin β1 were significantly higher in gastric carcinoma patients than in controls （P 〈 0.01）. A comparison of the E-selectin levels between the two groups showed statistically insignificant differnce （P = 0.64）. In addition, the expression levels were all decreased substantially in the postoperative patients subjected to radical resection of the tumours, indicating that the high level expressions of these compounds might be the important factor for predicting the prognosis of these patients. CONCLUSION： Serum E-selectin, ICAM-1 and integrin β1 expression levels are probably related to the metastasis and relapse of gastric cancer.
文摘Purpose: To find the effect of lumbrokinase (LK) on P-selectin and E-selectin in ischemic rats. Methods: Male healthy Spragur-Dawley rats weighing 180-220 g (n=90) were divided into 4 groups: (1) normal control group (n=5), (2) sham-operated group (n=35), (3) ischemic group (n=35), (4) LK group (n=15). LK 10mg/kg (2000UK activity of LK) was given by intraperitoneal injection in the LK group 30 minutes before experiment. Same volume of normal saline was given in the sham-operated group and ischemic group. The ischemic model was made by modified Haruo Nagasawa's method. Immunohistochemistry was used to observe the P-selectin and E-selectin positive cells in the ischemic region. Results: P-selectin and E-selectin positive cells in ischemic regions were observed in the ischemic group, and the peak of expression was at 6 hours and 12 hours, respectively. The similar changes were not observed in normal control group. There were only a few positive cells in the sham-operated group. In LK group, the P-selectin and E-selectin positive cells were significantly less than those in the ischemic group (P<0.05 at 3 hours after the onset, P<0.01 at 6 hours and P<0.01 at 12 hours, respectively). Conclusions: LK might significantly decrease the immunoreactions of P-selectin and E-selectin in ischemic lesion.
文摘Objective: To study the significance of E-selectin andits ligand-sLeX in the metastasis of hepatocellularcarcinoma (HCC).Methods: Flow cytometry and immunohistochemistrywere used to detect the expression of E-selectin and itsligand-sLeX in both HCC cell lines and human HCCtissues.Results: The positive rate of E-selectin in vascular en-dothelial cells adjacent to cancer was 67.9% (19/28). Theexpression of E-selectin in tumors accompanied withemboli or satellite foci was significantly higher than thatin tumors without emboli or satellite foci (P<0.05),and it was not related to tumor size, tumor capsule,AFP content, and the degree of differentiation. Thepositive expression of sLeX in SMMU-7721, PLF/PRF/5 and HepGⅡ cell lines was 7.03%, 63.35% and97.29% respectively. The positive cells of sLeX mainlydistributed in the margin of tumor tissues. The positiveexpression of sLeX in HCC cells in emboli or invasivetumor tissues was much higher than in primary foci.Conclusion: E-selectin and its ligand-sLeX are closelycorrelated with the metastasis of HCC.
