Angiogenesis Archives - Revista Brasileira de Ginecologia e Obstetrícia
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2000;22(6):339-345
DOI 10.1590/S0100-72032000000600004
Purpose: to quantify the vessels and epithelial proliferation, applying immunohistochemical staining with anti-CD34 as well as anti-PCNA markers, in intra-epithelial neoplasia of the uterine cervix. Methods: in the present study, 16 patients with CIN III, 16 with CIN II, 21 with CIN I and 11 with normal cervix (control group) were investigated. Slide analysis was performed at the same time by two observers, in 10 consecutive sites using 100X and 400X magnification, both in the highest vascularization (CD34) and proliferative activity sites (PCNA). Results: the means obtained with the use of anti-PCNA in intraepithelial neoplasias were: 78.2% (CIN III), 52.1% (CIN II), 33.3% (CIN I) and 4.6% (control group), while 199.1 vessels (CIN III), 162.0 vessels (CIN II), 111.7 vessels (CIN I) and 124.4 vessels (control group) were quantified using anti-CD34 as a vascular marker. Conclusion: the results showed that both markers, anti-PCNA and anti-CD34, are useful for investigating proliferative and angiogenic activity, respectively. However, anti-PCNA showed better and more accurate results than anti-CD34 in differentiating intraepithelial neoplasias.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2000;22(6):339-345
DOI 10.1590/S0100-72032000000600004
Purpose: to quantify the vessels and epithelial proliferation, applying immunohistochemical staining with anti-CD34 as well as anti-PCNA markers, in intra-epithelial neoplasia of the uterine cervix. Methods: in the present study, 16 patients with CIN III, 16 with CIN II, 21 with CIN I and 11 with normal cervix (control group) were investigated. Slide analysis was performed at the same time by two observers, in 10 consecutive sites using 100X and 400X magnification, both in the highest vascularization (CD34) and proliferative activity sites (PCNA). Results: the means obtained with the use of anti-PCNA in intraepithelial neoplasias were: 78.2% (CIN III), 52.1% (CIN II), 33.3% (CIN I) and 4.6% (control group), while 199.1 vessels (CIN III), 162.0 vessels (CIN II), 111.7 vessels (CIN I) and 124.4 vessels (control group) were quantified using anti-CD34 as a vascular marker. Conclusion: the results showed that both markers, anti-PCNA and anti-CD34, are useful for investigating proliferative and angiogenic activity, respectively. However, anti-PCNA showed better and more accurate results than anti-CD34 in differentiating intraepithelial neoplasias.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2003;25(6):396-401
DOI 10.1590/S0100-72032003000600003
PURPOSE: to evaluate the significance of neoangiogenesis for the prognosis of endometrial carcinoma, by quantifying and comparing the vessels with the grade of histologic differentiation and tumor staging. METHODS: the 56 studied cases consisted of 11 atrophic endometria, 10 proliferative endometria, 10 GI, 13 GII and 12 GIII adenocarcinomas. Two histologic sections were obtained for each case: one was stained with hematoxylin-eosin and the other was sent for a immunohistochemical study with anti-CD34. The utilized histometric method was vessel counting at the tumoral growth interface with the adjacent stroma, and in the control group, at the endometrial gland interface with the stroma. Couting was done by a KS300, evaluating 10 fields at 100X magnification. RESULTS: the counted vessel means were 11.6 for atrophic endometria, 13.2 for proliferative endometria, 15.3 for GI adenocarcinoma, 19 for GII adenocarcinoma, and 22.7 for GIII adenocarcinoma. In the group of stage I patients, it was observed that the mean number of vessels (18.6) was similar to that observed in stages II, III and IV (20.9) computed together. CONCLUSION: less differentiated adenocarcinomas were more angiogenic than well-differentiated carcinomas and normal endometrium. Vessel counting was not influenced by the disease stage as an isolated factor.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2003;25(6):396-401
DOI 10.1590/S0100-72032003000600003
PURPOSE: to evaluate the significance of neoangiogenesis for the prognosis of endometrial carcinoma, by quantifying and comparing the vessels with the grade of histologic differentiation and tumor staging. METHODS: the 56 studied cases consisted of 11 atrophic endometria, 10 proliferative endometria, 10 GI, 13 GII and 12 GIII adenocarcinomas. Two histologic sections were obtained for each case: one was stained with hematoxylin-eosin and the other was sent for a immunohistochemical study with anti-CD34. The utilized histometric method was vessel counting at the tumoral growth interface with the adjacent stroma, and in the control group, at the endometrial gland interface with the stroma. Couting was done by a KS300, evaluating 10 fields at 100X magnification. RESULTS: the counted vessel means were 11.6 for atrophic endometria, 13.2 for proliferative endometria, 15.3 for GI adenocarcinoma, 19 for GII adenocarcinoma, and 22.7 for GIII adenocarcinoma. In the group of stage I patients, it was observed that the mean number of vessels (18.6) was similar to that observed in stages II, III and IV (20.9) computed together. CONCLUSION: less differentiated adenocarcinomas were more angiogenic than well-differentiated carcinomas and normal endometrium. Vessel counting was not influenced by the disease stage as an isolated factor.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2001;23(5):313-319
DOI 10.1590/S0100-72032001000500007
Purpose: to compare the efficiency of anti-factor VIII and anti-CD34 antibodies as vascular makers in cervical cancer, in cervical intraepithelial neoplasia and in normal cervix. Methods: using an immunohistochemical method, factor VIII-related antigen and leukocyte antigen CD34, we performed microvascular counts in 18 squamous cell carcinomas, in 15 cervical high-grade intraepithelial neoplasia, in 15 low-grade intraepithelial lesions and in 10 normal cervices. Using light microscopy we counted microvessels per 400X field in the most active areas of neovascularization with higher microvessel density in each case. Results: the average of microvessels stained with anti-CD34 in invasive carcinoma, high-grade intraepithelial lesions, low-grade intraepithelial lesions and in the normal cervices was 154, 134, 112 and 93, respectively. When we used anti-factor VIII the average was 56, 44, 33 and 30 vessels, following the same order. High-grade intraepithelial lesions and invasive carcinomas showed greater means number of vessels than normal tissue. Conclusions: the use of anti-CD34 allowed the detection of a greater number of vessels when compared to anti-factor VIII. However, we could observe that anti-factor VIII staining was able to significantly discriminate high-grade from low-grade lesions.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2001;23(5):313-319
DOI 10.1590/S0100-72032001000500007
Purpose: to compare the efficiency of anti-factor VIII and anti-CD34 antibodies as vascular makers in cervical cancer, in cervical intraepithelial neoplasia and in normal cervix. Methods: using an immunohistochemical method, factor VIII-related antigen and leukocyte antigen CD34, we performed microvascular counts in 18 squamous cell carcinomas, in 15 cervical high-grade intraepithelial neoplasia, in 15 low-grade intraepithelial lesions and in 10 normal cervices. Using light microscopy we counted microvessels per 400X field in the most active areas of neovascularization with higher microvessel density in each case. Results: the average of microvessels stained with anti-CD34 in invasive carcinoma, high-grade intraepithelial lesions, low-grade intraepithelial lesions and in the normal cervices was 154, 134, 112 and 93, respectively. When we used anti-factor VIII the average was 56, 44, 33 and 30 vessels, following the same order. High-grade intraepithelial lesions and invasive carcinomas showed greater means number of vessels than normal tissue. Conclusions: the use of anti-CD34 allowed the detection of a greater number of vessels when compared to anti-factor VIII. However, we could observe that anti-factor VIII staining was able to significantly discriminate high-grade from low-grade lesions.
