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Title:Vpliv optimiziranega ekstrakta cvetnega prahu na metabolno aktivnost melanomskih celic WM-266-4 : diplomsko delo univerzitetnega študijskega programa I. stopnje
Authors:ID Toplak, Sanja (Author)
ID Knez Marevci, Maša (Mentor) More about this mentor... New window
ID Žitek Makoter, Taja (Comentor)
Files:.pdf UN_Toplak_Sanja_2023.pdf (4,91 MB)
MD5: F60327E2DA6EF37796777E3BB2592DF0
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Melanom je eno izmed najtežje ozdravljivih rakavih obolenj, saj so človeške melanomske celice znane kot ene najbolj agresivnih rakastih celic. Znanstveniki po celem svetu si zato prizadevajo, da bi razvili zdravilo, ki bi lahko ozdravilo to agresivno obliko raka. Dosedanje študije so pokazale, da imajo naravne spojine, med njimi sekundarni metaboliti, najdeni v naravnih materialih oz. proizvodih, tudi v čebeljem cvetnem prahu, citotoksični, antiproliferativni ter kemopreventivni učinek na različne rakave celične linije in so vključene v veliko klinično odobrenih zdravil proti raku. S pomočjo različnih ekstrakcijskih metod (ultrazvočna ekstrakcija, ekstrakcija po Soxhletu, superkritična ekstrakcija, vroča maceracija in hladna maceracija) smo pridobili ekstrakte cvetnega prahu s 70-odstotnim etanolom kot topilom in jim določili vsebnost totalnih fenolov, proantocianidinov in antioksidantov. Z računalniškim programom Design Expert smo optimirali pogoje ultrazvočne ekstrakcije in raztopine različnih koncentracij teh ekstraktov nanesli na melanomske celice. Rezultati so pokazali, da so vsi ekstrakti vplivali na zaviranje rasti rakavih celic, saj so zaustavili njihovo delitev, vendar opazimo signifikantno zmanjševanje metabolne aktivnosti rakastih celic pri koncentracijah med 0,05 mg/mL in 0,5 mg/mL.
Keywords:antioksidanti, cvetni prah, ekstrakcijske metode, proantocianidini, totalni fenoli, WM-266¬-4 celice
Place of publishing:Maribor
Place of performance:Maribor
Year of publishing:2023
Number of pages:1 spletni vir (1 datoteka PDF (XI, 56 f.))
PID:20.500.12556/DKUM-85161 New window
UDC:616-006.89-08:638.178.2(043.2)
COBISS.SI-ID:165196035 New window
Publication date in DKUM:13.09.2023
Views:550
Downloads:5
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:21.08.2023

Secondary language

Language:English
Title:Influence of optimised pollen extract on metabolic activity of WM-266-4 melanoma cells
Abstract:Melanoma is one of the hardest types of cancer(s) to treat because melanoma cells are known as some of the most aggressive cancer cells in existence. That is why scientists all over the world are striving to develop a cure for this particularly ugly and aggressive cancer. Studies up to now have shown that natural compounds, which include secondary metabolites found in natural materials/products (even in bee pollen), have cytotoxic, antiproliferative, and chemopreventive effects on various cancer cell lines and are consequently incorporated into many clinically approved oncology (anti-cancer) drugs. With the help of various different extraction methods (ultrasonic extraction, Soxhlet extraction, supercritical extraction and lastly hot and cold maceration) we have been able to acquire, with 70% ethanol serving as a solvent, pollen extractions- and assign to them total phenolic, proanthocyanidin and antioxidant content. With the help of the ‘Design Expert’ computer program we have optimized the conditions of ultrasonic extraction and have applied extraction solutions of different concentrations to melanoma cells. The results show that all extractions had an effect on the growth of cancer cells; they stopped their division, however we can observe a significant reducement in cancer metabolism, when we approach concentrations between 0,05 and 0,5 mg/mL.
Keywords:antioxidants, pollen, extraction method(s), Proanthocyanidins, total phenolic compounds, WM-266-4 melanoma cells


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