作者: Hiroaki Takeuchi , Norichika Hashimoto , Ryuhei Kitai , Toshihiko Kubota , Ken-ichiro Kikuta
关键词: Cancer research 、 Vascular endothelial growth factor 、 Vascular smooth muscle 、 Growth factor 、 Neovascularization 、 Biology 、 CD31 、 Microvessel 、 Endothelial stem cell 、 Angiogenesis 、 Immunology
摘要: Object Glioblastomas multiforme (GBM) contain a higher number of α-smooth muscle actin (SMA)–positive vascular smooth cells (VSMCs) than those in the respective normal neuronal tissue. The role VSMCs during angiogenesis is unclear, and it also uncertain whether to what extent angiogenic factors might be involved GBM VSMCs. In GBMs, contribution accompanying endothelial proliferation correlation VSMC with growth factor (VEGF) expression were examined using an immunohistochemical method. Methods material, including surrounding brain tissue, came from 12 cases (6 men 6 women) classic GBM. Microvessel densities (MVDs) CD31-immunoreactive vessels (CD31-MVD) SMA-immunoreactive (SMA-MVD) obtained areas selected white matter, boundary, tumor (concentrated area cells), perinecrosis. Subsequently, SMA-MVD/CD31-MVD (SMA/CD31) rate, representing percenta...