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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
The Role of Antiangiogenic Therapy in Mantle Cell Lymphoma
 Kovaříková, Petra ; Klener, Pavel (advisor) ; Kalinová, Markéta (referee) ; Boudová, Ludmila (referee)
Mantle cell lymphoma (MCL) is a subtype of B-non-Hodgkin's lymphoma, characterized by often relapses. Despite an Ibrutinib (a Bruton's kinase inhibitor) implementation into salvage therapy, these patients often relapse with biologically highly aggressive disease and very poor prognosis. An increased activation of alternative metabolic pathways was described as one of ibrutinib-resistance mechanisms. Some of these pathways have also significant proangiogenic activity (e.g. PI3K-AKT-mTOR). In presented study, we established and standardized a real-time ultrasound and photoacoustic imaging of neovascularization and tissue oxygenation of subcutaneous MCL tumors in mice. Ultrasound and photoacoustic imaging is a fast, non-invasive method for angiogenesis evaluation in subcutaneous tumors with huge preclinical potential. Using MCL mice models, we also demonstrated the importance of CD31/PECAM-1 expression for engraftment, growth and spread of MCL cells in vivo. The level of CD31 expression in primary MCL cell (obtained directly from MCL patients) positively correlates with extent of extranodal involvement. CD31 facilitates survival and regulates extranodal spread of mantle cell lymphoma. We found that increased VEGFA expression causes not only increased microvessel density due to higher sprouting...
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