1
|
Schwan WR. SK-03-92 Drug Kills Intracellular Mycobacterium tuberculosis. Antibiotics (Basel) 2023; 12:1385. [PMID: 37760682 PMCID: PMC10525840 DOI: 10.3390/antibiotics12091385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 08/24/2023] [Accepted: 08/28/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Tuberculosis affects millions of people worldwide. The emergence of drug-resistant Mycobacterium tuberculosis strains has made treatment more difficult. A drug discovery project initiated to screen natural products identified a lead stilbene compound, and structure function analysis of hundreds of analogs led to the discovery of the SK-03-92 stilbene lead compound with activity against several non-tuberculoid mycobacteria. METHODS For this study, an MIC analysis and intracellular killing assay were performed to test SK-03-92 against M. tuberculosis grown in vitro as well as within murine macrophage cells. RESULTS The MIC analysis showed that SK-03-92 had activity against M. tuberculosis in the range of 0.39 to 6.25 μg/mL, including activity against single-drug-resistant strains. Further, an intracellular kill assay demonstrated that the SK-03-92 lead compound killed M. tuberculosis cells within murine macrophage cells. CONCLUSION Together, the data show the SK-03-92 lead compound can kill M. tuberculosis bacteria within mammalian macrophages.
Collapse
Affiliation(s)
- William R Schwan
- Department of Microbiology, University of Wisconsin-La Crosse, 1725 State St., La Crosse, WI 54601, USA
| |
Collapse
|
2
|
Design, Synthesis and Cytotoxicity of Thiazole-Based Stilbene Analogs as Novel DNA Topoisomerase IB Inhibitors. Molecules 2022; 27:molecules27031009. [PMID: 35164276 PMCID: PMC8838847 DOI: 10.3390/molecules27031009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/19/2022] [Accepted: 01/31/2022] [Indexed: 11/17/2022] Open
Abstract
A series of new thiazole-based stilbene analogs were designed, synthesized and evaluated for DNA topoisomerase IB (Top1) inhibitory activity. Top1-mediated relaxation assays showed that the synthesized compounds possessed variable Top1 inhibitory activity. Among them, (E)-2-(3-methylstyryl)-4-(4-fluorophenyl)thiazole (8) acted as a potent Top1 inhibitor with high Top1 inhibition of ++++ which is comparable to that of CPT. A possible binding mode of compound 8 with Top1–DNA complex was further provided by molecular docking. An MTT assay against human breast cancer (MCF-7) and human colon cancer (HCT116) cell lines revealed that the majority of these compounds showed high cytotoxicity, with IC50 values at micromolar concentrations. Compounds 8 and (E)-2-(4-tert-butylstyryl)-4-(4-fluorophenyl)thiazole (11) exhibited the most potent cytotoxicity with IC50 values of 0.78 and 0.62 μM against MCF-7 and HCT116, respectively. Moreover, the preliminary structure–activity relationships of thiazole-based stilbene analogs was also discussed.
Collapse
|
3
|
Lu Q, Ye F, Sun X, Weng J, Yu Q, Hu D. Design and Synthesis of Novel Nature-Inspired Stilbene Analogues as Potential Topoisomerase 1 Inhibitors. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202102031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
4
|
Vaňková E, Paldrychová M, Kašparová P, Lokočová K, Kodeš Z, Maťátková O, Kolouchová I, Masák J. Natural antioxidant pterostilbene as an effective antibiofilm agent, particularly for gram-positive cocci. World J Microbiol Biotechnol 2020; 36:101. [DOI: 10.1007/s11274-020-02876-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 06/21/2020] [Indexed: 02/07/2023]
|
5
|
Moreira TA, Lafleur-Lambert R, Barbosa LC, Boukouvalas J. Concise, stereocontrolled and modular syntheses of the anti-influenza rubrolides R and S. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
6
|
Pasupuleti RR, Tsai PC, Ponnusamy VK. A fast and sensitive analytical procedure for monitoring of synthetic pyrethroid pesticides' metabolites in environmental water samples. Microchem J 2019. [DOI: 10.1016/j.microc.2019.05.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
7
|
Leláková V, Šmejkal K, Jakubczyk K, Veselý O, Landa P, Václavík J, Bobáľ P, Pížová H, Temml V, Steinacher T, Schuster D, Granica S, Hanáková Z, Hošek J. Parallel in vitro and in silico investigations into anti-inflammatory effects of non-prenylated stilbenoids. Food Chem 2019; 285:431-440. [PMID: 30797367 DOI: 10.1016/j.foodchem.2019.01.128] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 12/07/2018] [Accepted: 01/25/2019] [Indexed: 12/25/2022]
Abstract
Stilbenoids represent a large group of bioactive compounds, which occur in food and medicinal plants. Twenty-five stilbenoids were screened in vitro for their ability to inhibit COX-1, COX-2 and 5-LOX. Piceatannol and pinostilbene showed activity comparable to the zileuton and ibuprofen, respectively. The anti-inflammatory potential of stilbenoids was further evaluated using THP-1 human monocytic leukemia cell line. Tests of the cytotoxicity on the THP-1 and HCT116 cell lines showed very low toxic effects. The tested stilbenoids were evaluated for their ability to attenuate the LPS-stimulated activation of NF-κB/AP-1. Most of the tested substances reduced the activity of NF-κB/AP-1 and later attenuated the expression of TNF-α. The effects of selected stilbenoids were further investigated on inflammatory signaling pathways. Non-prenylated stilbenoids regulated attenuation of NF-ĸB/AP-1 activity upstream by inhibiting the phosphorylation of MAPKs. A docking study used to in silico analyze the tested compounds confirmed their interaction with NF-ĸB, COX-2 and 5-LOX.
Collapse
Affiliation(s)
- Veronika Leláková
- Department of Natural Drugs, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic; Department of Molecular Biology and Pharmaceutical Biotechnology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic
| | - Karel Šmejkal
- Department of Natural Drugs, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic.
| | - Karolina Jakubczyk
- Laboratory of Plant Biotechnologies, Institute of Experimental Botany, Czech Academy of Sciences, Rozvojová 263, 16502 Prague, Czech Republic
| | - Ondřej Veselý
- Laboratory of Plant Biotechnologies, Institute of Experimental Botany, Czech Academy of Sciences, Rozvojová 263, 16502 Prague, Czech Republic; Department of Quality of Agricultural Products, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcka129, 165 21 Prague 6 - Suchdol, Czech Republic
| | - Přemysl Landa
- Laboratory of Plant Biotechnologies, Institute of Experimental Botany, Czech Academy of Sciences, Rozvojová 263, 16502 Prague, Czech Republic
| | - Jiří Václavík
- Department of Natural Drugs, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic
| | - Pavel Bobáľ
- Department of Chemical Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic
| | - Hana Pížová
- Department of Chemical Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic
| | - Veronika Temml
- Department of Pharmacy/Pharmacognosy and Center for Molecular Biosciences (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Theresa Steinacher
- Department of Pharmacy/Pharmaceutical Chemistry and Center for Molecular Biosciences (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Daniela Schuster
- Institute of Pharmacy, Department of Pharmaceutical and Medicinal Chemistry, Paracelsus Medical University Salzburg, Strubergasse 21, 5020 Salzburg, Austria
| | - Sebastian Granica
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Zuzana Hanáková
- Department of Natural Drugs, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic
| | - Jan Hošek
- Department of Molecular Biology and Pharmaceutical Biotechnology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého třída 1946/1, 61242 Brno, Czech Republic
| |
Collapse
|