Uz vīrusveidīgo daļiņu platformas balstīta imunoloģisko kontrolpunktu inhibitoru vakcīnas prototipu izstrāde.
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Rīgas Stradiņa universitāte
Rīga Stradiņš University
Rīga Stradiņš University
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Vakcinācija ir efektīva stratēģija infekciozu un neinfekciozu slimību profilaksē un ārstēšanā. ssRNS bakteriofāgu (AP205 un Qβ) VLP daļiņas ir perspektīvi rīki vakcīnu izstrādē, pateicoties to stabilajai un augsti organizētajai struktūrai, kas efektīvi pastiprina imūnsistēmas reakciju. Maģistra darba ietvaros tika izstrādāti seši uz VLP daļiņām balstīti imunoloģisko kontrolpunktu (CTLA-4, PD-1 un PD-L1) inhibitoru kandidāti un veikta to imunoloģiskā raksturošana. VLP un mērķa proteīni tika producēti E. coli ekspresijas sistēmā, atjaunota to struktūra un veikta attīrīšana, izmantojot hromatogrāfijas metodes. VLP un antigēnu konjugātu veidošanās tika apstiprināta ar elektronu mikroskopiju, bet to imunogenitāte pārbaudīta peļu modelī. Qβ-CTLA-4 vakcīnas prototips izrādījās veiksmīgākais un uzrādīja autoantivielu veidošanos un vēlamu IgG antivielu profilu pretvēža terapijai.
Vaccination is an effective strategy for the prevention and treatment of infectious and non-infectious diseases. Virus-like particles derived from ssRNA bacteriophages (AP205 and Qβ) are promising tools for vaccine development due to their stable and highly organized structure, which effectively enhances the immune response. Within the framework of this master’s thesis, six VLP-based vaccine candidates targeting immune checkpoints (CTLA-4, PD-1, and PD-L1) were developed and immunologically characterized. VLPs and target proteins were produced using an E. coli expression system, structurally reconstituted, and purified using chromatographic methods. The formation of VLP-antigen conjugates was confirmed by electron microscopy, and their immunogenicity was evaluated in a murine model. The Qβ-CTLA-4 vaccine prototype showed the most promising results, inducing the formation of autoantibodies and a favorable IgG antibody profile suitable for cancer immunotherapy.
Vaccination is an effective strategy for the prevention and treatment of infectious and non-infectious diseases. Virus-like particles derived from ssRNA bacteriophages (AP205 and Qβ) are promising tools for vaccine development due to their stable and highly organized structure, which effectively enhances the immune response. Within the framework of this master’s thesis, six VLP-based vaccine candidates targeting immune checkpoints (CTLA-4, PD-1, and PD-L1) were developed and immunologically characterized. VLPs and target proteins were produced using an E. coli expression system, structurally reconstituted, and purified using chromatographic methods. The formation of VLP-antigen conjugates was confirmed by electron microscopy, and their immunogenicity was evaluated in a murine model. The Qβ-CTLA-4 vaccine prototype showed the most promising results, inducing the formation of autoantibodies and a favorable IgG antibody profile suitable for cancer immunotherapy.
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Biomedicīna
Biomedicine
Dzīvās dabas zinātnes
Natural Sciences
Biomedicine
Dzīvās dabas zinātnes
Natural Sciences