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1.
The posterity of Zebrafish in paradigm of in vivo molecular toxicological profiling
Suresh Kr. Verma, Ivan Jerman, Raghuraj S. Chouhan, Mrutyunjay Suar, 2024, review article

Abstract: The aggrandised advancement in utility of advanced day-to-day materials and nanomaterials has raised serious concern on their biocompatibility with human and other biotic members. In last few decades, understanding of toxicity of these materials has been given the centre stage of research using many in vitro and in vivo models. Zebrafish (Danio rerio), a freshwater fish and a member of the minnow family has garnered much attention due to its distinct features, which make it an important and frequently used animal model in various fields of embryology and toxicological studies. Given that fertilization and development of zebrafish eggs take place externally, they serve as an excellent model organism for studying early developmental stages. Moreover, zebrafish possess a comparable genetic composition to humans and share almost 70% of their genes with mammals. This particular model organism has become increasingly popular, especially for developmental research. Moreover, it serves as a link between in vitro studies and in vivo analysis in mammals. It is an appealing choice for vertebrate research, when employing high-throughput methods, due to their small size, swift development, and relatively affordable laboratory setup. This small vertebrate has enhanced comprehension of pathobiology and drug toxicity. This review emphasizes on the recent developments in toxicity screening and assays, and the new insights gained about the toxicity of drugs through these assays. Specifically, the cardio, neural, and, hepatic toxicology studies inferred by applications of nanoparticles have been highlighted.
Keywords: zebrafish, cardiotoxicity, neurotoxicity, hepatotoxicty, drug screening
Published in DiRROS: 16.12.2025; Views: 194; Downloads: 157
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2.
Identification of triazolopyrimidinyl scaffold SARS-CoV-2 papain-like protease (PLpro) inhibitor
Sebastjan Kralj, Marko Jukič, Miha Bahun, Luka Kranjc, Anja Kolarič, Milan Hodošček, Nataša Poklar Ulrih, Urban Bren, 2024, original scientific article

Abstract: The global impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its companion disease, COVID-19, has reminded us of the importance of basic coronaviral research. In this study, a comprehensive approach using molecular docking, in vitro assays, and molecular dynamics simulations was applied to identify potential inhibitors for SARS-CoV-2 papain-like protease (PLpro), a key and underexplored viral enzyme target. A focused protease inhibitor library was initially created and molecular docking was performed using CmDock software (v0.2.0), resulting in the selection of hit compounds for in vitro testing on the isolated enzyme. Among them, compound 372 exhibited promising inhibitory properties against PLpro, with an IC50 value of 82 ± 34 μM. The compound also displayed a new triazolopyrimidinyl scaffold not yet represented within protease inhibitors. Molecular dynamics simulations demonstrated the favorable binding properties of compound 372. Structural analysis highlighted its key interactions with PLpro, and we stress its potential for further optimization. Moreover, besides compound 372 as a candidate for PLpro inhibitor development, this study elaborates on the PLpro binding site dynamics and provides a valuable contribution for further efforts in pan-coronaviral PLpro inhibitor development.
Keywords: drug design, protease inhibitor, SARS-CoV-2, papain-like protease, PLpro, antiviral design, in silico drug design, CADD, virtual screening, HTVS, structure-based design
Published in DiRROS: 07.08.2024; Views: 1031; Downloads: 881
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