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Impact of plant alkaloids on viral infection
Šnejdarová, Aneta ; Horníková, Lenka (advisor) ; Váňová, Jana (referee)
Plant products have been used to treat various diseases since ancient times thanks to the many active substances they contain. One such group of substances are alkaloids. Alkaloids are biologically active substances which, in addition to antimicrobial, anti-inflammatory, antioxidant and many other properties, also possess antiviral properties. As a result, they can help treat viral infections, which are still a major medical problem today. Alkaloids affect all steps of virus replication, both viral components but especially cellular processes, without which a successful progress of viral cycle is not possible. In connection with the treatment of viral infections, the tropane, troponol, purine and isoquinoline alkaloids have been best investigated, which are also the subject of this work. The tropane alkaloid atropine acts mainly on enveloped viruses due to its ability to change the properties of biological membranes. Purine alkaloid caffeine, thanks to its ability to inhibit the cellular enzyme phosphodiestrase, causes an increase in intracellular cAMP levels and it has an impact on viral replication. Its antioxidant and immunomodulatory properties are also beneficial for the treatment. The anti-inflammatory effects of the tropane alkaloid colchicine stem from its ability to inhibit the dynamics of...
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