Showing 4 results for Angiogenesis
Fazlollah Fathollahi, Mohammad Faramarzi, Rouhollah Hemmati,
Volume 8, Issue 4 (12-2018)
Abstract
Background & Objective: Prostate cancer is the most common malignancy and the eighth cause of death in Iran. Angiogenesis is the major cause of metastatic and drug resistance in this cancer. The aim of this study was to investigate the effects of 10 weeks of high intensity periodic exercises on resting levels of some angiogenesis markers and also the pulmonary function of men with prostate cancer.
Materials & Methoed: 20 male patients with prostate cancer aged 55 to 62 years old were randomly divided into two groups (n = 10) and experimental (n = 10). The experimental group subjected to 10 weeks of periodic exercise with intensity progressed weekly, three sessions for 40 minutes and intensity of 70-75 was set for each session. 48 hours before and after exercise, the serum levels of VEGF, FGF, nitric oxide (NO) and also pulmonary function were measured. Intra and intergroup changes were analyzed using dependent t-test and independent t-test, respectively.
Results: The results showed that 10 weeks of severe periodic training significantly increased the levels of VEGF (P = 0.001), FGF (P = 0.001) and NO (P = 0.001) in the experimental group compared with the control group. Moreover, considering the results, FVC in patients with periodic exercise has increased significantly (P = 0.002).
Conclusion: As for results, it can be concluded that 10 weeks of periodic exercise increases the angiogenesis and pulmonary function in patients suffered from prostate cancer.
Dariush Rostami, Elahe Abdollahi, Hassan Taghizadeh, Sayed Mohammad Gheibi Hayat, Eskandar Taghizadeh,
Volume 9, Issue 3 (9-2019)
Abstract
Angiogenesis is a process in which new blood vessels produced from old vessels and this process plays an important role in the natural processes in body. Also, angiogenesis in tumor cells leads to further growth of these cells and leads to their metastasis. This process involves migration, proliferation and differentiation of endothelial cells. One of the new ideas that attracted the attention of scientists is to inhibit the angiogenesis process in cancer patients. Scientists are hoping that this method leading to a tumor cells therapy. The purpose of this study was to review the role of angiogenesis in metastasis of tumor cells with a therapeutic approach.
Parisa Ghorbani, S. Ali Beyramabadi, Masoud Homayouni-Tabrizi, Parichehreh Yaghmaei,
Volume 9, Issue 4 (11-2019)
Abstract
Background & Objective: Schiff bases are considered as an important group of compounds in the development of new drugs. The current approach to finding more effective treatment for cancer is to set up different stages of the angiogenesis process using angiogenesis suppressors, such as metal complexes synthesized from the Schiff bases. Therefore, the aim of this research was to investigate the antiangiogenic effects of oxovanadium(IV) complex of N,N′-dipyridoxyl(1,2-cyclopropanediamine) Schiff base on the chorioallantoic membrane of chick embryos cells.
Materials & methods: Anti-angiogenic activity of oxovanadium(IV) complex of N,N′-dipyridoxyl(1,2-cyclopropanediamine) Schiff base was evaluated using Real-time PCR technique to evaluate the expression changes in angiogenesis-related genes in MCF-7 breast cancer cells and CAM test.
Results: The study of alterations in the expression of genes showed that oxovanadium(IV) complex of N,N′-dipyridoxyl(1,2-cyclopropanediamine) Schiff base had a significant inhibitory effect on the expression of both genes involved in angiogenesis. The findings of the CAM test showed that there was a significant decrease in the number and length of the vessels treated with different doses of the complex (100, 200, 400 and 800 μg/mL) (P <0.01 and P <0.001). Also, there was a significant decrease in weight and height of embryos treated with complex compared to control group at P <0.05, P <0.01 and P <0.001.
Conclusion: In this study, the oxovanadium(IV) complex of N,N′-dipyridoxyl(1,2-cyclopropanediamine) Schiff base has antiangiogenesis effects that make the use of this complex possible for cancer treatment.
Homa Gholami, Masud Homayouni Tabrizi, Touran Ardalan,
Volume 11, Issue 2 (5-2021)
Abstract
Background & Objective: Corylus avellana essential oil (CAEO) due to its individual phytochemicals and phenolic compounds has been recognized as a potent cell-protective compound against oxidative stresses. In the current study, CAEO was encapsulated in the nanoemulsion drug delivery system to improve its bioactivity properties assuming antioxidant, antimicrobial, and anti-angiogenic potentials.
Materials & Methods: CAEO nanoemulsions (CAEO-NE) were synthesized applying a high energy ultrasonic method for the emulsification processes and were characterized by DLS, AFM, and SEM analysis. Their antioxidant activity was evaluated by measuring the radical scavenging effect on both DPPH and ABTS free radicals. The CAEO antibacterial and antiangiogenic potentials were studied by measuring the non-growth ring diameter of the staphylococcus aureus culture plate and monitoring the blood vessels of the chick chorioallantoic membrane and its length, respectively.
Results: The 45.9-nm CAEO-NE significantly inhibited both DPPH and ABTS free radicals. Meaningful antibacterial and antiangiogenic impacts were detected following increasing CAEO-NE treatment doses (P-value < 0.001).
Conclusion: CAEO-NE exhibited three key medicinal activities (antioxidant, antibacterial, and antiangiogenic), which make it a potentially safe antibacterial compound. It is suggested that CAEO-NE has anticancer potential due to its antioxidant and antiangiogenic effects. However, further in vitro and in vivo studies are required to verify its mentioned bioactivities and define details of its mechanism.
