AIM： To investigate the role of Livin and vascular endothelial growth factor （VEGF） in human esophageal carcinoma, and analyze its relationship to clinical stages.METHODS： Expression of Livin in fresh esophageal c...AIM： To investigate the role of Livin and vascular endothelial growth factor （VEGF） in human esophageal carcinoma, and analyze its relationship to clinical stages.METHODS： Expression of Livin in fresh esophageal cancer tissues was detected by immunohistochemistry （IHC）, Western blotting and reverse transcriptasepolyrnerase chain reaction （RT-PCR）, and VEGF by Western blotting and RT-PCR. All statistical analyses were performed by SPSS version 11.0. RESULTS： Livin positivity was also significantly correlated with tumor stages, increasing with tumor progression. Expression of Livin and VEGF increased with the process of esophageal carcinoma. In the fourth clinical stage, expression of Livin and VEGF was the most significant. Expression of Livin was positively correlated with VEGF. CONCLUSION： Over-expression of Livin and VEGF contributes to the pathogenesis of esophageal carcinoma.展开更多
Background CD44v6 plays an important role in invasion and metastasis of tumor, Livin has anti-apoptotic effects. The present study aimed to explore the expression and clinical significance of CD44v6 and Livin in gastr...Background CD44v6 plays an important role in invasion and metastasis of tumor, Livin has anti-apoptotic effects. The present study aimed to explore the expression and clinical significance of CD44v6 and Livin in gastric cancer tissue. Methods Streptavidin-peroxidase linked immunohistochemical method was used to determine the expression of CD44v6 and Livin in gastric cancer tissue and adjacent normal gastric tissues from 59 patients with histopathologically confirmed gastric cancer, and in gastric tissue specimens of 15 patients with gastric polyps, and 15 patients with chronic non-atrophic gastritis. The chi-square test was used for comparison of the relevant factors, Spearman＇s rank correlation test was applied for relationship among positive expression of the proteins. Results The expresion of CD44v6 was positive in 64.4% of the gastric cancer patients; 5.1%, 0 and 13.3% in specimens of normal tissues adjacent to the cancer tissues, in gastric tissue specimens of patients with gastric polyps, and patients with chronic non-atrophic gastritis, respectively. The expression of Livin was positive in 52.5% of the gastric cancer tissues, 6.8%, 0 and 6.7% in the adjacent normal gastric tissue, specimens of patients with gastric polyps and chronic non-atrophic gastritis, respectively. The expression of CD44v6 was significantly correlated with the depth of invasion, the degree of differentiation, and lymphnode metastasis of gastric cancer （P 〈0.05）. The positive expression rate of Livin protein was also significantly correlated with degree of differentiation of gastric cancer cells and metastasis to lymphnodes （P 〈0.05）, but not correlated with the depth of invasion and pathological types （P 〉0.05）. The expression of CD44v6 and Livin in the gastric cancer tissue was positively correlated （rs=0.286, P=0.028）. Conclusions The increased expression of CD44v6 and Livin in gastric cancer tissue may be closely related with development and progression of gastric cancer. CD44v6 and Livin may be new biologi展开更多
目的探讨凋亡抑制蛋白(inhibitor of apoptosisprotein,IAP)家族中的新成员Livin在食管癌组织中的表达及其与食管癌临床病理的关系。方法采用逆转录-聚合酶链反应(RT-PCR)结合银染技术检测食管癌组织中Livinα mRNA和Livinβ mRNA的表达...目的探讨凋亡抑制蛋白(inhibitor of apoptosisprotein,IAP)家族中的新成员Livin在食管癌组织中的表达及其与食管癌临床病理的关系。方法采用逆转录-聚合酶链反应(RT-PCR)结合银染技术检测食管癌组织中Livinα mRNA和Livinβ mRNA的表达,并用westernblot分析Livin蛋白的表达。结果36例食管癌组织中Livin表达阳性率为50.0%,其表达与癌组织浸润深度和淋巴结转移呈正相关(P<0.05),而与癌组织分化程度无关(P>0.05)。而18例癌旁正常食管组织中Livin低表达,阳性率为5.6%(P<0.01)。结论Livin在食管癌组织中异常表达,有望成为食管癌诊断和基因治疗的新靶点。展开更多
文摘AIM： To investigate the role of Livin and vascular endothelial growth factor （VEGF） in human esophageal carcinoma, and analyze its relationship to clinical stages.METHODS： Expression of Livin in fresh esophageal cancer tissues was detected by immunohistochemistry （IHC）, Western blotting and reverse transcriptasepolyrnerase chain reaction （RT-PCR）, and VEGF by Western blotting and RT-PCR. All statistical analyses were performed by SPSS version 11.0. RESULTS： Livin positivity was also significantly correlated with tumor stages, increasing with tumor progression. Expression of Livin and VEGF increased with the process of esophageal carcinoma. In the fourth clinical stage, expression of Livin and VEGF was the most significant. Expression of Livin was positively correlated with VEGF. CONCLUSION： Over-expression of Livin and VEGF contributes to the pathogenesis of esophageal carcinoma.
文摘Background CD44v6 plays an important role in invasion and metastasis of tumor, Livin has anti-apoptotic effects. The present study aimed to explore the expression and clinical significance of CD44v6 and Livin in gastric cancer tissue. Methods Streptavidin-peroxidase linked immunohistochemical method was used to determine the expression of CD44v6 and Livin in gastric cancer tissue and adjacent normal gastric tissues from 59 patients with histopathologically confirmed gastric cancer, and in gastric tissue specimens of 15 patients with gastric polyps, and 15 patients with chronic non-atrophic gastritis. The chi-square test was used for comparison of the relevant factors, Spearman＇s rank correlation test was applied for relationship among positive expression of the proteins. Results The expresion of CD44v6 was positive in 64.4% of the gastric cancer patients; 5.1%, 0 and 13.3% in specimens of normal tissues adjacent to the cancer tissues, in gastric tissue specimens of patients with gastric polyps, and patients with chronic non-atrophic gastritis, respectively. The expression of Livin was positive in 52.5% of the gastric cancer tissues, 6.8%, 0 and 6.7% in the adjacent normal gastric tissue, specimens of patients with gastric polyps and chronic non-atrophic gastritis, respectively. The expression of CD44v6 was significantly correlated with the depth of invasion, the degree of differentiation, and lymphnode metastasis of gastric cancer （P 〈0.05）. The positive expression rate of Livin protein was also significantly correlated with degree of differentiation of gastric cancer cells and metastasis to lymphnodes （P 〈0.05）, but not correlated with the depth of invasion and pathological types （P 〉0.05）. The expression of CD44v6 and Livin in the gastric cancer tissue was positively correlated （rs=0.286, P=0.028）. Conclusions The increased expression of CD44v6 and Livin in gastric cancer tissue may be closely related with development and progression of gastric cancer. CD44v6 and Livin may be new biologi
文摘目的探讨凋亡抑制蛋白(inhibitor of apoptosisprotein,IAP)家族中的新成员Livin在食管癌组织中的表达及其与食管癌临床病理的关系。方法采用逆转录-聚合酶链反应(RT-PCR)结合银染技术检测食管癌组织中Livinα mRNA和Livinβ mRNA的表达,并用westernblot分析Livin蛋白的表达。结果36例食管癌组织中Livin表达阳性率为50.0%,其表达与癌组织浸润深度和淋巴结转移呈正相关(P<0.05),而与癌组织分化程度无关(P>0.05)。而18例癌旁正常食管组织中Livin低表达,阳性率为5.6%(P<0.01)。结论Livin在食管癌组织中异常表达,有望成为食管癌诊断和基因治疗的新靶点。
