Turkish Neurosurgery 2022 , Vol 32 , Num 5
Antiangiogenic Molecules Suppressed Meningioma-Induced Neovascularization: A Corneal Angiogenesis Study
Necati TATARLI1,Davut CEYLAN2,M. Deniz OKSAL3,Timucin AVSAR4,Turker KILIC5
1University of Health Sciences, Dr. Lutfi Kırdar Kartal Training and Research Hospital, Department of Neurosurgery, Istanbul, Turkey
2Sakarya University, Sakarya Training and Research Hospital, Department of Neurosurgery, Sakarya, Turkey
3Bahcesehir University, Health Sciences Institute, Neuroscience Program, Istanbul, Turkey
4Bahcesehir University, School of Medicine, Department of Medical Biology, Istanbul, Turkey
5Bahcesehir University, School of Medicine, Department of Neurosurgery, Istanbul, Turkey
DOI : 10.5137/1019-5149.JTN.34777-21.4 AIM: To investigate the angiogenic effects of bevacizumab and imatinib on different meningioma tissue grades.

MATERIAL and METHODS: In this study, in silico analysis of angiogenesis-related gene expression was carried out using previously reported datasets. Messenger ribonucleic acid expressions of VEGFA, VEGFB, PDGFRA, and PDGFRB genes were obtained from two different meningioma transcriptome datasets. The effect of antiangiogenic drugs, bevacizumab and imatinib, on meningiomainduced vascularization was assessed by using rat corneal angiogenesis assay (CAA).

RESULTS: Bevacizumab and imatinib both significantly reduced meningioma-induced neovascularization in the CAA model.

CONCLUSION: The angiogenic characteristics of meningiomas may be suppressed by using antiangiogenic drugs to prevent neovascularization, thus improving prognosis. Keywords : Meningioma, Angiogenesis, Imatinib, Bevacizumab, Cornea angiogenesis model

Corresponding author : Necati TATARLI, necatitatarli@yahoo.com