Author(s): Marques, Beatriz C. [UNESP] ; Santos, Mariana B. [UNESP] ; Anselmo, Daiane B. [UNESP] ; Monteiro, Diego A. [UNESP] ; Gomes, Eleni [UNESP] ; Saiki, Marilia F. C. [UNESP] ; Rahal, Paula [UNESP] ; Rosalen, Pedro L. ; Sardi, Janaina C. O. ; Regasini, Luis O. [UNESP]
Date: 2020
Persistent ID: http://hdl.handle.net/11449/202015
Origin: Oasisbr
Subject(s): Antibacterial; Antifungal; Antiproliferative; Chalcone; Drug-likeness; Methoxyl
Made available in DSpace on 2020-12-12T02:47:42Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Background: Chalcones substituted by methoxyl groups have presented a broad spec-trum of bioactivities, including antifungal, antibacterial and antiproliferative effects. However, a clear and unambiguous investigation about the relevance of this substituent on the chalcone framework has not been described. Objective: The purpose of this work is to assess the antibacterial, antifungal and antiproliferative activities of the two series of seventeen synthesized regioisomeric methoxychalcones. Series I and II were constituted by chalcones substituted by methoxyl groups on rings A (5–12) and B (13–21), respectively. In addition, the library of methoxychalcones was submitted to in silico drug-likeness and pharmacokinetics properties predictions. Methods: Methoxychalcones were synthesized and their structures were confirmed by NMR spectral data analyses. Evaluations of antimicrobial activity were performed against five species of Candida, two Gram-negative and five Gram-positive species. For antiproliferative activity, methoxychalcones were evaluated against four human tumorigenic cell lines, as well as human non-tumorigenic keratinocytes. Drug-likeness and pharmacokinetics properties were predicted using Molinspiration and PreADMET toolkits. Results: In general, chalcones of series I are the most potent antifungal, antibacterial and antipro-liferative agents. 3’, 4’, 5’-Trimethoxychalcone (12) demonstrated potent antifungal activity against Candida krusei (MIC = 3.9 µg/mL), eight times more potent than fluconazole (reference antifungal drug). 3’-Methoxychalcone (6) displayed anti-Pseudomonas activity (MIC = 7.8 µg/mL). 2’,5’-Dimethoxychalcone (9) displayed potent antiproliferative effect against C-33A (cervix), A-431 (skin) and MCF-7 (breast), with IC50 values ranging from 7.7 to 9.2 µM. Its potency was superior to curcumin (reference antiproliferative compound), which exhibited IC50 values ranging from 10.4 to 19.0 µM. Conclusion: Our studies corroborated the relevance of methoxychalcones as antifungal, antibacte-rial and antiproliferative agents. In addition, we elucidated influence of the position and number of methoxyl groups toward bioactivity. In silico predictions indicated good drug-likeness and phar-macokinetics properties to the library of methoxychalcones.
Department of Chemistry and Environmental Sciences Institute of Biosciences Humanities and Exact Sciences São Paulo State University (Unesp)
Department of Biology Institute of Bio-sciences Humanities and Exact Sciences São Paulo State University (Unesp)
Department of Physiological Sciences Piracicaba Dental School University of Campinas (Unicamp)
Department of Chemistry and Environmental Sciences Institute of Biosciences Humanities and Exact Sciences São Paulo State University (Unesp)
Department of Biology Institute of Bio-sciences Humanities and Exact Sciences São Paulo State University (Unesp)
CAPES: 001
FAPESP: 2009/53989-4
FAPESP: 2014/18330-0
FAPESP: 2014/18577-5
FAPESP: 2014/50926-0
FAPESP: 2016/08084-7
FAPESP: 2017/09245-7
FAPESP: 2018/ 15083-2
CNPq: 309957/2019-2 306251/ 2016-7
CNPq: 429322/2018-6
CNPq: 465637/2014-0
CNPq: 471129/2013-5
