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
AIM: The expression pattern of endoglin (CD105) in hepatocellular carcinoma (HCC) has not been reported so far. We hypothesized that CD105 could differentially highlight a subset of microvessels in HCC, and intratumor...AIM: The expression pattern of endoglin (CD105) in hepatocellular carcinoma (HCC) has not been reported so far. We hypothesized that CD105 could differentially highlight a subset of microvessels in HCC, and intratumoral microvessel density (IMVD) by CD105 immunostaining (IMVD-CD105) could provide better prognostic information than IMVD by CD34 immunostaining (IMVD-CD34).METHODS: Paraffin blocks of tumor and adjacent nontumorous liver tissues from 86 patients who underwent curative resection of HCC were used for this study. Serial sections were stained for CD105 and CD34, respectively,to highlight the microvessels. IMVD was counted according to a standard protocol.RESULTS: In the HCC tissues, CD105 was either negatively or positively stained only in a subset of microvessels. In contrast, CD34 showed positive and more extensive microvessel staining in all cases examined. However, in the adjacent non-tumorous liver sections, CD105 showed a diffuse pattern of microvessel staining in 20 of 86 cases,while CD34 showed negative or only focal staining of the sinusoids around portal area. Correlation with clinicopathological data demonstrated that lower scores of IMVD-CD105 were found in larger sized tumors [mean 41.4/0.74 mm2 (＞5 cm tumor) vs 65.9/0.74 mm2(≤ 5 cm tumor), P = 0.043] and more aggressive tumors,as indicated by venous infiltration [36.8/0.74 mm2 (present)vs 64.2/0.74 mm2 (absent), P = 0.020], microsatellite nodules [35.1/0.74 mm2 (present) vs 65.9/0.74 mm2(absent), P = 0.012], and advanced TNM tumor stage [38.8/0.74 mm2 (stage 3 or 4) vs 68.3/0.74 mm2 (stage 1or 2), P = 0.014]. No prognostic significance was observed when median values were used as cut-off points using either IMVD-CD105 or IMVD-CD34. However, the presence of the diffuse pattern of CD105 expression in the adjacent non-tumorous liver tissues predicted a poorer disease-free survival (median 8.6 vs 21.5 mo, P = 0.026).CONCLUSION: Our data demonstrate that a lower IMVDCD105 is associated with larger and more aggressive tumors. In this study, I展开更多
目的：观察蝎毒多肽提取物（polypeptide extract from scorpion venom，PESV）对H22肝癌荷瘤小鼠化疗期间再增殖的抑制作用并探讨可能的机制。方法：96只Balb／c小鼠皮下接种小鼠肝癌H22细胞，随机分为模型组、PESV高、低剂量组和衙瘤...目的：观察蝎毒多肽提取物（polypeptide extract from scorpion venom，PESV）对H22肝癌荷瘤小鼠化疗期间再增殖的抑制作用并探讨可能的机制。方法：96只Balb／c小鼠皮下接种小鼠肝癌H22细胞，随机分为模型组、PESV高、低剂量组和衙瘤对照组。以5．Fu对荷瘤小鼠进行化疗建立再增殖模型。按不同的用药方法对4组小鼠进行干预，每周测量肿瘤体积2次。各组每7d处死6只小鼠，实验共进行35d。以免疫组织化学方法检测各组肿瘤组织CD105，PCNA，VEGF，PDGF蛋白水半表达。以CD105标记微血管，计算微血管密度（MVD）。结果：荷瘤对照组肿瘤体积在13—24d增加迅速，荷瘤对照组小鼠在第27天全部死亡，模型组肿瘤体积在17d前增长较快，在第17～22天增加较慢，之后体积增加又较快，在第31天全部死亡。PESV高、低剂量组肿瘤体积全程缓慢增加，体积在17d以后显著低于模型组，PESV高低剂量组之间仅在第17天存在差异（P〈0．05）。免疫组织化学检测湿示，模型组肿瘤组织第31天PCNA表达水平高于第21，28天（P〈0．01），PESV高、低剂量组表达水平显著低于模型组（P〈0．01），PESV高、低剂量组仅在第17天存在显著差异（P〈0．05）。免疫组织化学检测显示，与PESV高、低剂量组相比，模型组CD105-MVD在第21，28天（P〈0．05），第35天（P〈0．01）存在显著差异，PESV高低剂量组之间无差别。模型组VEGF表达第35天高于第21，28天（P〈0．05），PESV高、低剂量VEGF表达在第21，28，35天表达水平均显著低于模型组（P〈0．01），PESV高低剂量组无差别。模型组肿瘤PDGF表达水平逐渐下降，PESV高，低组存第21天表达水平最低，之后逐渐增高，PESV高低剂量组之间在第35天存在显著差异（P〈0．01）。相关性分析显示，肿瘤组织VEGF表达水平与肿瘤组织CD105-MVD呈正相关（r=0．669）。结论：PESV可抑制H展开更多
AIM: To evaluate the correlation between the immunoexpression of angiogenic markers [CD31, CD105 and vascular endothelial growth factor(VEGF)], proliferative index(Ki67), and prognosis of patients with gastrointestina...AIM: To evaluate the correlation between the immunoexpression of angiogenic markers [CD31, CD105 and vascular endothelial growth factor(VEGF)], proliferative index(Ki67), and prognosis of patients with gastrointestinal stromal tumors(GIST).METHODS: This is a retrospective study of 54 GIST cases. Medical records were searched to obtain the GIST patients' demographic and clinical data, and paraffin-embedded blocks of tumor samples were retrieved from the hospital archives to conduct a new immunohistochemical evaluation. The tumor samples of GIST patients were subject to immunohistochemical evaluation for endoglin(CD105), CD31, VEGF, and Ki67 expression. The CD105 and CD31 intratumoral microvascular density(IMVD) was measured using automated analysis. We determined the correlation between the immunoexpression of CD105, CD31, VEGF,Ki67 and prognosis. In addition, we conducted a cutoff analysis using the receiver-operating characteristic curve. VEGF positivity was classified as either null/weak or strong. Ki67 was evaluated using a cutoff of 5%positive cells. The prognosis was classified as good(patient alive without recurrence) or poor(patient with recurrence/death).RESULTS: The distribution of tumor sites among the54 analyzed samples was as follows: 27(50%) in the stomach, 20(37.1%) in the small intestine, 6(11.1%)in the colon, and 1(1.8%) in the esophagus. The size of the tumors ranged from 2 to 33 cm(median: 8cm); in 12 cases(22.2%), the tumor was below 5 cm at the largest diameter, but in 42 cases(77.7%), the tumor was larger than 5 cm. The means of CD105 and CD31 were significantly higher in the group with poor prognosis(P < 0.001). The cut-off values of CD105(>1.2%) and CD31(> 2.5%) in the receiver-operating characteristic curve were related to a poorer prognosis.Cases with a better prognosis showed significantly null/weak staining for VEGF(P < 0.001). Ki-67 expression of≥ 5% was strongly correlated with a worse prognosis(P< 0.001). In the multivariate analysis, CD105 was the variable that most strongly corre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.
基金Supported by the Sun C.Y. Research Foundation for Hepatobiliary and Pancreatic Surgery of The University of Hong Kong
文摘AIM: The expression pattern of endoglin (CD105) in hepatocellular carcinoma (HCC) has not been reported so far. We hypothesized that CD105 could differentially highlight a subset of microvessels in HCC, and intratumoral microvessel density (IMVD) by CD105 immunostaining (IMVD-CD105) could provide better prognostic information than IMVD by CD34 immunostaining (IMVD-CD34).METHODS: Paraffin blocks of tumor and adjacent nontumorous liver tissues from 86 patients who underwent curative resection of HCC were used for this study. Serial sections were stained for CD105 and CD34, respectively,to highlight the microvessels. IMVD was counted according to a standard protocol.RESULTS: In the HCC tissues, CD105 was either negatively or positively stained only in a subset of microvessels. In contrast, CD34 showed positive and more extensive microvessel staining in all cases examined. However, in the adjacent non-tumorous liver sections, CD105 showed a diffuse pattern of microvessel staining in 20 of 86 cases,while CD34 showed negative or only focal staining of the sinusoids around portal area. Correlation with clinicopathological data demonstrated that lower scores of IMVD-CD105 were found in larger sized tumors [mean 41.4/0.74 mm2 (＞5 cm tumor) vs 65.9/0.74 mm2(≤ 5 cm tumor), P = 0.043] and more aggressive tumors,as indicated by venous infiltration [36.8/0.74 mm2 (present)vs 64.2/0.74 mm2 (absent), P = 0.020], microsatellite nodules [35.1/0.74 mm2 (present) vs 65.9/0.74 mm2(absent), P = 0.012], and advanced TNM tumor stage [38.8/0.74 mm2 (stage 3 or 4) vs 68.3/0.74 mm2 (stage 1or 2), P = 0.014]. No prognostic significance was observed when median values were used as cut-off points using either IMVD-CD105 or IMVD-CD34. However, the presence of the diffuse pattern of CD105 expression in the adjacent non-tumorous liver tissues predicted a poorer disease-free survival (median 8.6 vs 21.5 mo, P = 0.026).CONCLUSION: Our data demonstrate that a lower IMVDCD105 is associated with larger and more aggressive tumors. In this study, I
文摘目的：观察蝎毒多肽提取物（polypeptide extract from scorpion venom，PESV）对H22肝癌荷瘤小鼠化疗期间再增殖的抑制作用并探讨可能的机制。方法：96只Balb／c小鼠皮下接种小鼠肝癌H22细胞，随机分为模型组、PESV高、低剂量组和衙瘤对照组。以5．Fu对荷瘤小鼠进行化疗建立再增殖模型。按不同的用药方法对4组小鼠进行干预，每周测量肿瘤体积2次。各组每7d处死6只小鼠，实验共进行35d。以免疫组织化学方法检测各组肿瘤组织CD105，PCNA，VEGF，PDGF蛋白水半表达。以CD105标记微血管，计算微血管密度（MVD）。结果：荷瘤对照组肿瘤体积在13—24d增加迅速，荷瘤对照组小鼠在第27天全部死亡，模型组肿瘤体积在17d前增长较快，在第17～22天增加较慢，之后体积增加又较快，在第31天全部死亡。PESV高、低剂量组肿瘤体积全程缓慢增加，体积在17d以后显著低于模型组，PESV高低剂量组之间仅在第17天存在差异（P〈0．05）。免疫组织化学检测湿示，模型组肿瘤组织第31天PCNA表达水平高于第21，28天（P〈0．01），PESV高、低剂量组表达水平显著低于模型组（P〈0．01），PESV高、低剂量组仅在第17天存在显著差异（P〈0．05）。免疫组织化学检测显示，与PESV高、低剂量组相比，模型组CD105-MVD在第21，28天（P〈0．05），第35天（P〈0．01）存在显著差异，PESV高低剂量组之间无差别。模型组VEGF表达第35天高于第21，28天（P〈0．05），PESV高、低剂量VEGF表达在第21，28，35天表达水平均显著低于模型组（P〈0．01），PESV高低剂量组无差别。模型组肿瘤PDGF表达水平逐渐下降，PESV高，低组存第21天表达水平最低，之后逐渐增高，PESV高低剂量组之间在第35天存在显著差异（P〈0．01）。相关性分析显示，肿瘤组织VEGF表达水平与肿瘤组织CD105-MVD呈正相关（r=0．669）。结论：PESV可抑制H
文摘AIM: To evaluate the correlation between the immunoexpression of angiogenic markers [CD31, CD105 and vascular endothelial growth factor(VEGF)], proliferative index(Ki67), and prognosis of patients with gastrointestinal stromal tumors(GIST).METHODS: This is a retrospective study of 54 GIST cases. Medical records were searched to obtain the GIST patients' demographic and clinical data, and paraffin-embedded blocks of tumor samples were retrieved from the hospital archives to conduct a new immunohistochemical evaluation. The tumor samples of GIST patients were subject to immunohistochemical evaluation for endoglin(CD105), CD31, VEGF, and Ki67 expression. The CD105 and CD31 intratumoral microvascular density(IMVD) was measured using automated analysis. We determined the correlation between the immunoexpression of CD105, CD31, VEGF,Ki67 and prognosis. In addition, we conducted a cutoff analysis using the receiver-operating characteristic curve. VEGF positivity was classified as either null/weak or strong. Ki67 was evaluated using a cutoff of 5%positive cells. The prognosis was classified as good(patient alive without recurrence) or poor(patient with recurrence/death).RESULTS: The distribution of tumor sites among the54 analyzed samples was as follows: 27(50%) in the stomach, 20(37.1%) in the small intestine, 6(11.1%)in the colon, and 1(1.8%) in the esophagus. The size of the tumors ranged from 2 to 33 cm(median: 8cm); in 12 cases(22.2%), the tumor was below 5 cm at the largest diameter, but in 42 cases(77.7%), the tumor was larger than 5 cm. The means of CD105 and CD31 were significantly higher in the group with poor prognosis(P < 0.001). The cut-off values of CD105(>1.2%) and CD31(> 2.5%) in the receiver-operating characteristic curve were related to a poorer prognosis.Cases with a better prognosis showed significantly null/weak staining for VEGF(P < 0.001). Ki-67 expression of≥ 5% was strongly correlated with a worse prognosis(P< 0.001). In the multivariate analysis, CD105 was the variable that most strongly corre
