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Radiolabeling of ramucirumab followed with the study of its internalization in vitro
Gajdoš, Jakub ; Bárta, Pavel (advisor) ; Kuchařová, Monika (referee)
v anglickém jazyce Charles University Faculty of Pharmacy in Hradec Králové Department of Biophysics and Physical Chemistry Student: Bc. Jakub Gajdoš Supervisor: Mgr. Pavel Bárta, Ph.D. Title of diploma thesis: Radiolabeling of ramucirumab followed with the study of its internalization in vitro. The process of angiogenesis ensures the formation of the bloodstream at the site of its increased need. Therefore, it is not surprising that angiogenesis is often included in the tumor production process, because it provides the tumor cells nutrition supply and metabolite removal. The targeting of angiogenesis has become a key topic of some scientific research. The process of tumor blood supply formation provides a family of vascular endothelial factors (VEGFs) and their respective receptors, which have become the target of the angiogenesis attenuation in a cancer treatment. One of many therapeutics is the monoclonal antibody ramucirumab targeted against VEGF receptor type 2 (VEGFR-2). Radioactive labeling of ramucirumab with a suitable radionuclide could bring benefits in either radiotherapy or radiodiagnostics. The aim of this diploma thesis was the indirect radioactive labeling of monoclonal antibody ramucirumab using 99m Tc as radiodiagnostic nuclide via the chelation agent succinimidyl-6-...
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Radiolabelled antibodies - the perspective for diagnosis and therapy
Mejtská, Jana ; Bárta, Pavel (advisor) ; Ramos Mandíková, Jana (referee)
1 CHARLES UNIVERSITY FAKULTY OF PHARMACY IN HRADEC KRÁLOVÉ DEPARTMENT OF BIOPHYSICS AND PHYSICAL CHEMISTRY DISSERTATION THESIS RADIOLABELED ANTIBODIES - THE PERSPECTIVE FOR DIAGNOSIS AND THERAPY Supervizor: Mgr. PAVEL BÁRTA, Ph.D. HRADEC KRÁLOVÉ, 2017 Bc. JANA MEJTSKÁ 2 ABSTRACT EN Different types of tissues have a characteristic cell morphology. Each cell has typical molecules on its surface, which may be either of physiological or pathological type. The presence of these surface structures can be interesting for possible modulation of specific cell populations from neighboring cells. Utilization of this property is then essential particularly in a case of tumor cells. Targeting on tumor specific cell structures involves the use of receptor specific peptides or monoclonal antibodies. The discovery of the preparation of monoclonal antibodies has opened a new chapter in the treatment and diagnosis not only tumor diseases. The advantage of monoclonal antibodies is their specificity and also high affinity to the type of the target cell structures. This study is focused on the summary of monoclonal antibodies which are currently being applied on the treatment or diagnosis of a particular cancer. Furthermore, this work also includes antibodies which are under development for intended medical applications with...
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Radiolabelling of Lys3-Bombesine and determination of stability of the radiolabelled product
Kosová, Pavla ; Lázníčková, Alice (advisor) ; Kubíček, Vladimír (referee)
Charles University in Prague, Faculty of Pharmacy in Hradec Králové Department of: Biophysics and Physical Chemistry Consultant: Doc. Ing. Alice Lázníčková, CSc. Student: Pavla Kosová Title of thesis: Radiolabeling of PCTA-Lys3-Bombesine and determination of stability of the radiolabeled product The dissertation deal with study of radiolabeling of new receptor-specific peptide - bombesin, which was modified with chelator PCTA, PCTA-Lys3-bombesin, with radionuclide 177 Lu, and determination of labelled product quality and its stability. For quality control we used method high-efficiency liquid chromatography (HPLC) and thin-layer chromatography (ITLC) on ITLC-SG. HPLC offer clear proof about pollution and possible dissociative outputs. Comparison of both methods for determination of purity of labelled peptide showed that HPLC is more accurate than TLC method.
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