1.Angiogenic Factors and Their Receptors.
Journal of Korean Society of Endocrinology 2001;16(3):277-283
No abstract available.
Angiogenesis Inducing Agents*
2.Immunohistochemical Study for the Angiogenesis Factors and Vascular Wall Matrix Proteins in Intracranial Aneurysms.
Jae Hong KIM ; Man Bin YIM ; Chang Young LEE ; Sang Pyo KIM
Journal of Korean Neurosurgical Society 2000;29(12):1584-1591
No abstract available.
Angiogenesis Inducing Agents*
;
Intracranial Aneurysm*
3.Role of Angiogenic Factors during the Hepatocarcinogenesis.
The Korean Journal of Hepatology 2001;7(1):12-14
No abstract availalbe.
Angiogenesis Inducing Agents*
;
Vascular Endothelial Growth Factor A
4.A comprehensive review of the efficacy and safety of dopamine agonists for women with endometriosis-associated infertility from inception to July 31, 2022
Acta Medica Philippina 2024;58(10):49-64
Background:
Current medical management of endometriosis leads to suppression of ovulation and will not be helpful for women with endometriosis who are desirous of pregnancy. Thus, drugs that can both treat endometriosis and its associated infertility are highly warranted.
Objective:
Anti-angiogenic agents are potential drugs for patients with endometriosis and infertility. Among these drugs, dopamine agonist (DA) is promising since it does not interfere with ovulation, is safe, and not teratogenic. The aim of the study is to determine the efficacy and safety of DA for improving reproductive outcomes in women with endometriosis and infertility.
Methods:
A qualitative narrative review was done from inception to July 31, 2022 using the appropriate MeSH terms in PubMed, Cochrane Database of Systematic Reviews, the Cochrane Central Register of Controlled Trials, ClinicalTrial.gov, and World Health Organization International Clinical Trials Registry Platform. Date analysis was through qualitative analysis and synthesis of researches and their outcome measures.
Results:
No studies used the core outcomes for trials evaluating treatments for infertility associated with endometriosis. All the included articles in the review supported the possible anti-angiogenic effects of DA on the vascular endothelial growth factor [VEGF] /VEGF receptor system. The use of DA does not have an effect on ovulation and menstrual cyclicity. Studies on safety profile of DA were consistent with existing data.
Conclusion
Most of studies reviewed demonstrated that DA were effective in reducing endometriotic lesions. However, further research is required to establish whether this anti-angiogenic effect can improve reproductive outcomes in women with endometriosis-associated infertility.
Endometriosis
;
Dopamine Agonists
;
Infertility
;
Angiogenesis Inducing Agents
;
Angiogenesis Inhibitors
6.Correlation between VEGF Expression and Angiogenesis in Advanced Gastric Carcinoma.
Young Bae KIM ; Jee Young HAN ; Sang Hyun LEE ; Hae Seung HAN ; Tae Sook KIM ; Young Chae CHU ; Tae Sook HWANG
Journal of the Korean Cancer Association 1998;30(6):1061-1068
PURPOSE: VEGF is thought to be an important angiogenic factor playing significant a role in the aggressiveness of malignant tumor by stimulating neovascularization. We morphologically investicated the tumor angiogenesis in terms of the presence of VEGF expression in advanced gastric carcinoma. MATERIALS AND METHODS: We performed immunohistochemical stains for VEGF, CD 34, and MIB-1 (Ki-67) on the 51 paraffin-embedded tissue sections. The degree of angiogenesis was determined by counting microvessel densities and their Ki-67 labelling indices of endothelial cells within the tumors. We evaluated the correlation between the expression of VEGF, angiogenesis and clinicopathologic factors such as histologic differentiation, depth of invasion, and lymph node metastasis. RESULTS: Immunoreactivity for VEGF revealed positivity in 34 out of 51 cases (66.7%). Microvessel densities and Ki-67 labelling indices of endothelial cells reflecting angiogenesis were higher in VEGF-positive tumors than VEGF-negative tumors. There were no conelations between VEGF expression, histologic differentiation and the depth of invasion. We failed to evaluate the conelation of VEGF expression and lymph node metastasis. CONCLUSION: This study suggests that VEGF expressian is closely related to tumor asso- ciated angiogenesis in advanced gastric carcinoma. Considering that tumor growth depends on angiogenesis, therapies reducing VEGF may be a means of inhibiting angiogenesis and tumor aggressiveness.
Angiogenesis Inducing Agents
;
Coloring Agents
;
Endothelial Cells
;
Lymph Nodes
;
Microvessels
;
Neoplasm Metastasis
;
Vascular Endothelial Growth Factor A*
7.Bidirectional regulation of angiogenesis by phytoestrogens through estrogen receptor-mediated signaling networks.
Hai-Xin LIU ; Yu WANG ; Qing LU ; Ming-Zhu YANG ; Guan-Wei FAN ; Richard H KARAS ; Xiu-Mei GAO ; Yan ZHU
Chinese Journal of Natural Medicines (English Ed.) 2016;14(4):241-254
Sex hormone estrogen is one of the most active intrinsic angiogenesis regulators; its therapeutic use has been limited due to its carcinogenic potential. Plant-derived phytoestrogens are attractive alternatives, but reports on their angiogenic activities often lack in-depth analysis and sometimes are controversial. Herein, we report a data-mining study with the existing literature, using IPA system to classify and characterize phytoestrogens based on their angiogenic properties and pharmacological consequences. We found that pro-angiogenic phytoestrogens functioned predominantly as cardiovascular protectors whereas anti-angiogenic phytoestrogens played a role in cancer prevention and therapy. This bidirectional regulation were shown to be target-selective and, for the most part, estrogen-receptor-dependent. The transactivation properties of ERα and ERβ by phytoestrogens were examined in the context of angiogenesis-related gene transcription. ERα and ERβ were shown to signal in opposite ways when complexed with the phytoestrogen for bidirectional regulation of angiogenesis. With ERα, phytoestrogen activated or inhibited transcription of some angiogenesis-related genes, resulting in the promotion of angiogenesis, whereas, with ERβ, phytoestrogen regulated transcription of angiogenesis-related genes, resulting in inhibition of angiogenesis. Therefore, the selectivity of phytoestrogen to ERα and ERβ may be critical in the balance of pro- or anti-angiogenesis process.
Angiogenesis Inducing Agents
;
metabolism
;
Angiogenesis Inhibitors
;
metabolism
;
Animals
;
Gene Expression Regulation
;
Humans
;
Phytoestrogens
;
metabolism
;
Receptors, Estrogen
;
genetics
;
metabolism
;
Signal Transduction
8.Serum Vascular Endothelial Growth Factor (VEGF) and Microvessel Tumor Invasion in Hepatocellular Carcinomas.
Seong Woo HONG ; Dong Hee WHANG ; In Wook PAIK ; Hyuck Sang LEE
Journal of the Korean Surgical Society 2003;64(3):224-228
PURPOSE: Vascular endothelial growth factor (VEGF) is a potent angiogenic factor in a number of cancers. The aim of this study was to evaluate the clinical significance of the serum level of VEGF in hepatocellular carcinoma (HCC) patients. METHODS: Serum VEGF was measured by an enzyme linked immunosorbent assay (ELISA) method. The correlation between serum VEGF level and clinico-pathological data of HCC patients were evaluated. RESULTS: The serum VEGF levels significantly increased with increasing tumor size and platelets count. The mean serum VEGF level in HCC patients with microvessel tumor invasion was higher than in those without microvessel tumor invasion. CONCLUSION: A high serum VEGF level may be an indicator of tumor progression and an important predictor of microvessel tumor invasion.
Angiogenesis Inducing Agents
;
Carcinoma, Hepatocellular*
;
Enzyme-Linked Immunosorbent Assay
;
Humans
;
Microvessels*
;
Vascular Endothelial Growth Factor A*
9.VEGF Expression and Angiogenesis in Uterine Cervical Carcinomas.
Korean Journal of Pathology 1999;33(2):96-102
Angiogenesis is a critical factor in the progression of solid tumors, including cervical cancers. The mechanisms responsible for angiogenesis in uterine cervical neoplasia are not well defined. To determine the relationship between angiogenesis and the expression of vascular endothelial growth factor (VEGF) in the cervical neoplasia, the author studied 63 cases of the cervical neoplasia diagnosed between the years 1993 to 1997 at Pusan National University Hospital. The expression of VEGF was semiquantitatively analyzed in paraffin sections by immunohistochemical method. Histologic sections immunostained for factor VIII-related antigen were evaluated for microvessel density. Increased expression of VEGF and microvessel counts was significantly correlated with depth of invasion. Increased microvessel counts were also significantly associated with increased VEGF expression. These results suggest that VEGF is an important angiogenic factor and associated with progression of the cervical neoplasia.
Angiogenesis Inducing Agents
;
Busan
;
Microvessels
;
Paraffin
;
Uterine Cervical Neoplasms
;
Vascular Endothelial Growth Factor A*
;
von Willebrand Factor
10.Serum Vascular Endothelial Growth Factor after Transcatheter Arterial Chemoembolization in Patients with Hepatocellular Carcinoma.
Ho Min JOO ; Seong Woo HONG ; Dong Hee WHANG ; Tae Gil HEO ; Yeo Goo CHANG ; In Wook PAIK ; Hyucksang LEE
Korean Journal of Hepato-Biliary-Pancreatic Surgery 2003;7(1):26-31
BACKGROUND/AIMS: Vascular endothelial growth factor (VEGF) is a potent angiogenic factor. Hepatocellular carcinoma (HCC) is a typical hypervascular tumor and VEGF may play a important role in its carcinogensis and progression. Transcatheter arterial chemoembolization (TACE) which is one of the therapeutic modalities of HCC induces hypoxia to the tumor. VEGF is known to be up-regulated by hypoxia. In this study, we examined the level of VEGF in the course of TACE. METHODS: Twenty-two HCC patients were enrolled in this study. Serum VEGF level was investigated before and 1, 5 and 10 days after TACE. The correlation of clinical factors of patients and the level of serum VEGF before TACE was evaluated. Platelet count was also measured with VEGF. RESULTS: Mean serum VEGF level increased significantly 1 and 5 days after TACE. Platelet count decreased significantly 1 day after TACE. Serum VEGF level was positively correlated with platelet count before and 1 day after TACE. CONCLUSION: TACE may increase the serum level of VEGF induced by hypoxia.
Angiogenesis Inducing Agents
;
Anoxia
;
Carcinoma, Hepatocellular*
;
Humans
;
Platelet Count
;
Vascular Endothelial Growth Factor A*