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Title:Uporaba modernih računalniških pristopov za iskanje novih protivirusnih zdravil : magistrsko delo
Authors:ID Avdičević, Adela (Author)
ID Bren, Urban (Mentor) More about this mentor... New window
Files:.pdf MAG_Avdicevic_Adela_2024.pdf (5,48 MB)
MD5: 11676A5974446BD2A2DDF00502D2D15D
 
Language:Slovenian
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:V magistrski nalogi smo uporabili sodobne računalniške pristope z namenom odkrivanja novih potencialnih zdravil proti virusu HIV-1, ki povzroča AIDS. Proteaza HIV-1, encim, ki je ključnega pomena za razmnoževanje virusa, predstavlja eno najpomembnejših tarč za razvoj protivirusnih zdravil. Zaradi naraščajoče odpornosti virusa na obstoječa zdravila je nujno iskanje novih in učinkovitih zaviralcev tega encima. Uporabili smo kombinacijo naprednih računalniških metod, vključno z virtualnim rešetanjem, molekulskim sidranjem in molekulsko dinamiko, da bi ocenili sposobnost rozmanola in njegovih derivatov za vezavo na proteazo HIV-1 ter njihovo potencialno učinkovitost kot zaviralcev tega encima. Za podrobnejšo analizo smo izbrali molekulo 1 (ZINC5733675), ki je med virtualnim rešetanjem pokazala največjo podobnost z rozmanolom, ter molekulo 25 (ZINC4377044), ki smo jo med molekulskim sidranjem identificirali kot najbolj obetavno, saj je dosegla najnižjo vezavno energijo in največje število interakcij med vsemi analiziranimi ligandi. Molekulsko dinamiko smo izvedli za rozmanol in oba izbrana derivata vezana na HIV-1 proteazo, da bi preučili njihov vzorec dinamične vezave, kot tudi stabilnost njihovih interakcij z aktivnim mestom proteaze v dinamičnih pogojih. Ugotovili smo, da se ligandi premaknejo bližje verigi B proteaze, kar potrjujejo močnejše interakcije in stabilnost vezave s to verigo. Rezultati te magistrske naloge predstavljajo pomemben korak k razumevanju vezave ligandov naravnega izvora na katalitično mesto in zaviranja delovanja proteaze HIV-1. Naši rezultati nakazujejo, da bi rozmanol in njegovi derivati lahko predstavljali učinkovito osnovo za razvoj novih zdravil proti HIV/AIDS-u. Kljub obetavnim računalniškim napovedim pa je za nadaljnji razvoj teh spojin kot zdravil potrebna dodatna eksperimentalna validacija.
Keywords:proteaza HIV-1, AIDS, rozmanol, virtualno rešetanje, molekulsko sidranje, molekulska dinamika
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[A. Avdičević]
Year of publishing:2024
Number of pages:1 spletni vir (1 datoteka PDF (XII, 78 f.))
PID:20.500.12556/DKUM-90275 New window
UDC:004.9:615.281.8.015(043.2)
COBISS.SI-ID:217051651 New window
Publication date in DKUM:11.09.2024
Views:238
Downloads:112
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
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Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:27.08.2024

Secondary language

Language:English
Title:The use of modern computational methods in the search for novel antiviral drugs
Abstract:In the master's thesis, we employed modern computational approaches to discover new potential drugs against HIV-1, the virus that causes AIDS. HIV-1 protease, an enzyme crucial for viral replication, is one of the most important targets for antiviral drug development. Due to the increasing resistance of the virus to existing drugs, it is essential to find new and effective inhibitors of this enzyme. We used a combination of advanced computational methods, including virtual screening, molecular docking, and molecular dynamics, to evaluate the binding potential of rosmanol and its derivatives to HIV-1 protease and their potential effectiveness as enzyme inhibitors. For detailed analysis, we selected molecule 1 (ZINC5733675), which exhibited the greatest similarity to rosmanol during virtual screening, and molecule 25 (ZINC4377044), identified as the most promising structure during molecular docking due to its lowest binding energy and the highest number of interactions among all analysed ligands. We performed molecular dynamics for rosmanol and both selected derivatives bound to HIV-1 protease to examine their dynamic binding pattern and the stability of their interactions with the protease's active site under dynamic conditions. We found that the ligand moves closer to the protease chain B, confirming stronger interactions and binding stability with this chain. The results of this master's thesis represent an important step toward understanding the binding of natural compounds to the catalytic site and the inhibition of HIV-1 protease activity. Our findings suggest that rosmanol and its derivatives could serve as an effective basis for developing new drugs against HIV/AIDS. Despite promising computational predictions, further experimental validation is necessary for the continued development of these compounds as therapeutic agents.
Keywords:HIV-1 protease, AIDS, rosmanol, virtual screening, molecular docking, molecular dynamics


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