Bibliographic citations
Quispe, A., (2022). Mecanismos biológicos relacionados con actividad anticancerígena mediados por péptidos antimicrobianos de cocodrilos [Universidad Peruana Cayetano Heredia]. https://hdl.handle.net/20.500.12866/12120
Quispe, A., Mecanismos biológicos relacionados con actividad anticancerígena mediados por péptidos antimicrobianos de cocodrilos []. PE: Universidad Peruana Cayetano Heredia; 2022. https://hdl.handle.net/20.500.12866/12120
@misc{renati/910417,
title = "Mecanismos biológicos relacionados con actividad anticancerígena mediados por péptidos antimicrobianos de cocodrilos",
author = "Quispe Larrea, Alonso Guillermo",
publisher = "Universidad Peruana Cayetano Heredia",
year = "2022"
}
It has been postulated that certain molecules found in crocodilian tissues are related to their powerful immune system (1). One source of these substances would be the microbiota, which produces metabolites and peptides that are linked to the longevity of the species and immune protection against certain pathologies such as infections and cancer (2). On the other hand, other substances that are secreted in the skin or circulate in the blood of crocodiles, have antimicrobial and anticancer activity. In this group are bioactive peptides, which are short chains of amino acids, with anticancer, antimicrobial and antifungal properties. (3) In particular, those that have antimicrobial activity are called antimicrobial peptides (AMPs), some of which also have anticancer activity (ACPs). For example, cationic peptides such as KT2 and RT2 from freshwater crocodile leukocyte extract have been described as having anticancer activity. In in vitro studies, it has been described that these ACPs interact with components of the membrane of cancer cells, such as phospholipids, in a recognition not mediated by receptors. (4,5) Once endocytosed, ACPs induce apoptosis in the cancer cell, and also affect the mitochondrial membrane potential, which initiates the caspase cascade. (6) In this sense, it would be advantageous to use ACPs against cancer, since their interaction with cancer cells does not depend on membrane receptors, being less likely to develop resistance compared to immunotherapies. Artificial intelligence has recently predicted the presence of more than 200 AMPs from crocodile tissues (Crocodylus porosus) that would have anticancer activity. However, their properties and potential biological mechanisms regulated by them have not yet been explored (7). In this study, we seek to determine the biological mechanisms associated with anticancer activity that could regulate these AMPs, applying bioinformatic methods that consider their physicochemical and structural properties. In the future, those AMPs could be evaluated in vitro and their anticancer action experimentally validated.
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