PT Journal AU Batista, K Eulate-Beramendi, Sd Pina, Kd Figueira, P Canal, A Chasin, J Meilan, A Ugalde, R Vega, I TI Mesenchymal/proangiogenic factor YKL-40 related to glioblastomas and its relationship with the subventricular zone SO Folia Neuropathologica JI Folia Neuropathol PY 2017 BP 14 EP 22 VL 55 IS 1 DI 10.5114/fn.2017.66709 LA English DE Ykl-40; glioblastoma; glioblastoma stem cells; subventricular zone AB Glioblastoma is the most common primary brain tumor. Despite multimodality therapy with aggressive microsurgical resection and adjuvant chemotherapy and radiotherapy, the median survival is below 15 months. Glioblastomas are heterogeneous tumors with high resistance to most chemotherapeutic drugs. According to reliable evidence, YKL-40, one of the best investigated chitinase-like protein, may facilitate invasion, migration and angiogenesis, and could be also responsible for temozolomide resistance in glioblastoma, thus conferring a dismal prognosis. Previous studies have demonstrated that glioblastoma stem cells give rise to endothelial cells through an YKL-40 influence. Such factor is closely related to the subventricular zone. This review focuses on the most recent theories involving the possible relationship between topographic gliomagenesis related to the subventricular zone and YKL-40.. ER