AIM: To explore the expression of reversion inducing cysteine-rich protein with Kazal motifs (RECK), vascular endothelial growth factor (VEGF) and endoglin (CD105) protein and its correlation with occurrence, developm...AIM: To explore the expression of reversion inducing cysteine-rich protein with Kazal motifs (RECK), vascular endothelial growth factor (VEGF) and endoglin (CD105) protein and its correlation with occurrence, development, invasion and metastasis in esophageal squamous cell carcinoma (ESCC). METHODS: Streptavidin-peroxidase (SP) immunohisto- chemistry was used to detect expression of RECK and VEGF in 62 cases of ESCC, 31 cases of adjacent atypical hyperplastic epithelium and 62 cases of normal esophageal epithelium. CD105 Mb was used to assess microvessel density (MVD). RESULTS: The expression of RECK was closely correlated with histological grade, infiltrative depth and lymphatic metastasis in ESCC (P < 0.05). The expression of RECK decreased during cancer development: normal esophageal epithelium (85.5%, 53/62), adjacent atypical hyperplastic epithelium (71.0%, 22/31), and carcinoma (59.7%, 37/62). There was a significant difference among the groups (P < 0.05). The expression of VEGF protein was closely correlated with infiltrative depth and lymphatic metastasis in ESCC (P < 0.05). The expression of VEGF protein increased during cancer development: normal esophageal epithelium (29.0%, 18/62), adjacent atypical hyperplastic epithelium (54.8%, 17/31), and carcinoma (67.7%, 42/62). There was a significant difference among the groups (P < 0.05). MVDCD105 increased in accordance with histological grade, butthere was no significant difference (grade Ⅰ, 36.92 ± 10.85; grade Ⅱ, 37.65 ± 9.50; and grade Ⅲ, 38.06 ± 12.19). The MVDCD105 was closely correlated with infiltration and lymphatic metastasis in ESCC (P < 0.05). The expression of RECK was inversely correlated with the expression of VEGF and CD105. CONCLUSION: RECK, VEGF and CD105 play important roles in the infiltration, metastasis and carcinogenesis in esophageal carcinoma. Angiogenesis in ESCC may be promoted by over-expression of CD105.展开更多
伴有kazal基序富含半胱氨酸的逆转诱导蛋白(reversion-inducing cysteine-rich protein with Kazal motif,RECK)基因是新近发现的基质金属蛋白酶(matrix matalloproteinase,MMP)抑制剂,能在转录后水平抑制多种MMP的表达而抑制肿瘤的侵...伴有kazal基序富含半胱氨酸的逆转诱导蛋白(reversion-inducing cysteine-rich protein with Kazal motif,RECK)基因是新近发现的基质金属蛋白酶(matrix matalloproteinase,MMP)抑制剂,能在转录后水平抑制多种MMP的表达而抑制肿瘤的侵袭及转移。RECK与乳腺癌、胰腺癌、骨肉瘤等疾病患者的预后存在正相关关系。文中综述RECK和MMP与各系统肿瘤的关系。展开更多
目的探讨乳腺癌MCF-7细胞中微小核糖核酸-21(microRNA-21,miR-21)对反转录富含半胱氨酸蛋白(reversion inducing cysteine rich protein with Kazal motifs,RECK)表达的调控作用。方法将miR-21模拟物、miR-21抑制物及模拟物阴性对照、...目的探讨乳腺癌MCF-7细胞中微小核糖核酸-21(microRNA-21,miR-21)对反转录富含半胱氨酸蛋白(reversion inducing cysteine rich protein with Kazal motifs,RECK)表达的调控作用。方法将miR-21模拟物、miR-21抑制物及模拟物阴性对照、抑制物阴性对照各组瞬时转染到MCF-7细胞中,48 h后通过荧光定量聚合酶链反应检测miR-21在细胞的表达情况,蛋白质印迹法检测转染后RECK表达水平变化。结果细胞转染48 h后,miR-21抑制物组和miR-21模拟物组miR-21的表达分别与转染空白对照组比较差异有统计学意义(P<0.001),转染miR-21抑制物组miR-21的表达明显下降,转染miR-21模拟物组miR-21的表达明显上调;细胞转染miR-21各组后RECK表达差异有统计学意义(P<0.01),miR-21抑制物组相对其阴性对照组,RECK表达明显上升(P<0.001);miR-21模拟物组相对其阴性对照组,RECK表达明显下降(P<0.001)。结论miR-21可以抑制乳腺癌MCF-7细胞RECK表达,可能成为判断乳腺癌患者预后的评价指标及肿瘤治疗的新靶点。展开更多
基金Supported by The "Tenth Five-Year Plan" Research Foundation for the Key Constructional Project ("211 Project") of Zhengzhou University, He'nan Province, China
文摘AIM: To explore the expression of reversion inducing cysteine-rich protein with Kazal motifs (RECK), vascular endothelial growth factor (VEGF) and endoglin (CD105) protein and its correlation with occurrence, development, invasion and metastasis in esophageal squamous cell carcinoma (ESCC). METHODS: Streptavidin-peroxidase (SP) immunohisto- chemistry was used to detect expression of RECK and VEGF in 62 cases of ESCC, 31 cases of adjacent atypical hyperplastic epithelium and 62 cases of normal esophageal epithelium. CD105 Mb was used to assess microvessel density (MVD). RESULTS: The expression of RECK was closely correlated with histological grade, infiltrative depth and lymphatic metastasis in ESCC (P < 0.05). The expression of RECK decreased during cancer development: normal esophageal epithelium (85.5%, 53/62), adjacent atypical hyperplastic epithelium (71.0%, 22/31), and carcinoma (59.7%, 37/62). There was a significant difference among the groups (P < 0.05). The expression of VEGF protein was closely correlated with infiltrative depth and lymphatic metastasis in ESCC (P < 0.05). The expression of VEGF protein increased during cancer development: normal esophageal epithelium (29.0%, 18/62), adjacent atypical hyperplastic epithelium (54.8%, 17/31), and carcinoma (67.7%, 42/62). There was a significant difference among the groups (P < 0.05). MVDCD105 increased in accordance with histological grade, butthere was no significant difference (grade Ⅰ, 36.92 ± 10.85; grade Ⅱ, 37.65 ± 9.50; and grade Ⅲ, 38.06 ± 12.19). The MVDCD105 was closely correlated with infiltration and lymphatic metastasis in ESCC (P < 0.05). The expression of RECK was inversely correlated with the expression of VEGF and CD105. CONCLUSION: RECK, VEGF and CD105 play important roles in the infiltration, metastasis and carcinogenesis in esophageal carcinoma. Angiogenesis in ESCC may be promoted by over-expression of CD105.
文摘伴有kazal基序富含半胱氨酸的逆转诱导蛋白(reversion-inducing cysteine-rich protein with Kazal motif,RECK)基因是新近发现的基质金属蛋白酶(matrix matalloproteinase,MMP)抑制剂,能在转录后水平抑制多种MMP的表达而抑制肿瘤的侵袭及转移。RECK与乳腺癌、胰腺癌、骨肉瘤等疾病患者的预后存在正相关关系。文中综述RECK和MMP与各系统肿瘤的关系。
文摘目的探讨乳腺癌MCF-7细胞中微小核糖核酸-21(microRNA-21,miR-21)对反转录富含半胱氨酸蛋白(reversion inducing cysteine rich protein with Kazal motifs,RECK)表达的调控作用。方法将miR-21模拟物、miR-21抑制物及模拟物阴性对照、抑制物阴性对照各组瞬时转染到MCF-7细胞中,48 h后通过荧光定量聚合酶链反应检测miR-21在细胞的表达情况,蛋白质印迹法检测转染后RECK表达水平变化。结果细胞转染48 h后,miR-21抑制物组和miR-21模拟物组miR-21的表达分别与转染空白对照组比较差异有统计学意义(P<0.001),转染miR-21抑制物组miR-21的表达明显下降,转染miR-21模拟物组miR-21的表达明显上调;细胞转染miR-21各组后RECK表达差异有统计学意义(P<0.01),miR-21抑制物组相对其阴性对照组,RECK表达明显上升(P<0.001);miR-21模拟物组相对其阴性对照组,RECK表达明显下降(P<0.001)。结论miR-21可以抑制乳腺癌MCF-7细胞RECK表达,可能成为判断乳腺癌患者预后的评价指标及肿瘤治疗的新靶点。
