Taketo Ezaki, Toshihide Tanaka, Ryota Tamura, Kentaro Ohara, Yohei Yamamoto, Jun Takei, Yukina Morimoto, Ryotaro Imai, Yuki Kuranai, Yasuharu Akasaki, Masahiro Toda, Yuichi Murayama, Keisuke Miyake, Hikaru Sasaki
Glioblastoma multiforme (GBM) acquires resistance to bevacizumab (Bev) treatment. Bev affects angiogenic factors other than vascular endothelial growth factor (VEGF), which are poorly understood. We investigated changes in angiogenic factors under and after Bev therapy, including angiopoietin-1 (ANGPT1), angiopoietin-2 (ANGPT2), placental growth factor (PLGF), fibroblast growth factor 2, and ephrin A2 (EphA2). Fifty-four GBM tissues, including 28 specimens from 14 cases as paired specimens from the same patient obtained in three settings: initial tumor resection (naïve Bev), tumors resected following Bev therapy (effective Bev), and recurrent tumors after Bev therapy (refractory Bev)...
April 15, 2024: Brain Tumor Pathology