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Hou L, Ye M, Wang X, Zhu Y, Sun X, Gu R, Chen L, Fang B. Synergism with Shikimic Acid Restores β-Lactam Antibiotic Activity against Methicillin-Resistant Staphylococcus aureus. Molecules 2024; 29:1528. [PMID: 38611807 PMCID: PMC11013880 DOI: 10.3390/molecules29071528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 03/15/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) has evolved into a dangerous pathogen resistant to beta-lactam antibiotics (BLAs) and has become a worrisome superbug. In this study, a strategy in which shikimic acid (SA), which has anti-inflammatory and antibacterial activity, is combined with BLAs to restart BLA activity was proposed for MRSA treatment. The synergistic effects of oxacillin combined with SA against oxacillin resistance in vitro and in vivo were investigated. The excellent synergistic effect of the oxacillin and SA combination was confirmed by performing the checkerboard assay, time-killing assay, live/dead bacterial cell viability assay, and assessing protein leakage. SEM showed that the cells in the control group had a regular, smooth, and intact surface. In contrast, oxacillin and SA or the combination treatment group exhibited different degrees of surface collapse. q-PCR indicated that the combination treatment group significantly inhibited the expression of the mecA gene. In vivo, we showed that the combination treatment increased the survival rate and decreased the bacterial load in mice. These results suggest that the combination of oxacillin with SA is considered an effective treatment option for MRSA, and the combination of SA with oxacillin in the treatment of MRSA is a novel strategy.
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Affiliation(s)
- Limin Hou
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Minqi Ye
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Xiaoyu Wang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Yifan Zhu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Xueyan Sun
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Ruiheng Gu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Liangzhu Chen
- Guangdong Wenshi Dahuanong Biotechnology Co., Ltd., Yunfu 510610, China
| | - Binghu Fang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
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Juhász Á, Gombár G, Várkonyi EF, Wojnicki M, Ungor D, Csapó E. Thermodynamic Characterization of the Interaction of Biofunctionalized Gold Nanoclusters with Serum Albumin Using Two- and Three-Dimensional Methods. Int J Mol Sci 2023; 24:16760. [PMID: 38069083 PMCID: PMC10706308 DOI: 10.3390/ijms242316760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 11/21/2023] [Accepted: 11/23/2023] [Indexed: 12/18/2023] Open
Abstract
Fluorescent gold nanoclusters have been successfully used as fluorescent markers for imaging of cells and tissues, and their potential role in drug delivery monitoring is coming to the fore. In addition, the development of biosensors using structure-tunable fluorescent nanoclusters is also a prominent research field. In the case of these sensor applications, the typical goal is the selective identification of, e.g., metal ions, small molecules having neuroactive or antioxidant effects, or proteins. During these application-oriented developments, in general, there is not enough time to systematically examine the interaction between nanoclusters and relevant biomolecules/proteins from a thermodynamic viewpoint. In this way, the primary motivation of this article is to carry out a series of tests to partially fill this scientific gap. Besides the well-known fluorescent probes, the mentioned interactions were investigated using such unique measurement methods as surface plasmon resonance (SPR) and isothermal titration calorimetry (ITC). These two-dimensional (at the solid/liquid interface) and three-dimensional (in the bulk phase) measuring techniques provide a unique opportunity for the thermodynamic characterization of the interaction between different gold nanoclusters containing various surface functionalizing ligands and bovine serum albumin (BSA).
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Affiliation(s)
- Ádám Juhász
- Interdisciplinary Excellence Center, Department of Physical Chemistry and Materials Science, University of Szeged, H-6720 Rerrich B. sqr. 1, 6720 Szeged, Hungary (E.F.V.); (D.U.)
- MTA-SZTE Lendület “Momentum” Noble Metal Nanostructures Research Group, University of Szeged, H-6720 Rerrich B. sqr. 1, 6720 Szeged, Hungary
| | - Gyöngyi Gombár
- Interdisciplinary Excellence Center, Department of Physical Chemistry and Materials Science, University of Szeged, H-6720 Rerrich B. sqr. 1, 6720 Szeged, Hungary (E.F.V.); (D.U.)
- MTA-SZTE Lendület “Momentum” Noble Metal Nanostructures Research Group, University of Szeged, H-6720 Rerrich B. sqr. 1, 6720 Szeged, Hungary
| | - Egon F. Várkonyi
- Interdisciplinary Excellence Center, Department of Physical Chemistry and Materials Science, University of Szeged, H-6720 Rerrich B. sqr. 1, 6720 Szeged, Hungary (E.F.V.); (D.U.)
| | - Marek Wojnicki
- Faculty of Non-Ferrous Metals, AGH University of Science and Technology, Mickiewicza Ave. 30, 30-059 Krakow, Poland;
| | - Ditta Ungor
- Interdisciplinary Excellence Center, Department of Physical Chemistry and Materials Science, University of Szeged, H-6720 Rerrich B. sqr. 1, 6720 Szeged, Hungary (E.F.V.); (D.U.)
| | - Edit Csapó
- Interdisciplinary Excellence Center, Department of Physical Chemistry and Materials Science, University of Szeged, H-6720 Rerrich B. sqr. 1, 6720 Szeged, Hungary (E.F.V.); (D.U.)
- MTA-SZTE Lendület “Momentum” Noble Metal Nanostructures Research Group, University of Szeged, H-6720 Rerrich B. sqr. 1, 6720 Szeged, Hungary
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Dyrda-Terniuk T, Pryshchepa O, Rafińska K, Kolankowski M, Gołębiowski A, Gloc M, Dobrucka R, Kurzydłowski K, Pomastowski P. Immobilization Of Silver Ions Onto Casein. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Dombi G, Horváth P, Fiser B, Mirzahosseini A, Dobó M, Szabó ZI, Tóth G. Enantioselective Human Serum Albumin Binding of Apremilast: Liquid Chromatographic, Fluorescence and Molecular Docking Study. Int J Mol Sci 2023; 24:ijms24032168. [PMID: 36768492 PMCID: PMC9916978 DOI: 10.3390/ijms24032168] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 01/13/2023] [Accepted: 01/19/2023] [Indexed: 01/24/2023] Open
Abstract
The interaction between human serum albumin (HSA) and apremilast (APR), a novel antipsoriatic drug, was characterized by multimodal analytical techniques including high-performance liquid chromatography (HPLC), fluorescence spectroscopy and molecular docking for the first time. Using an HSA chiral stationary phase, the APR enantiomers were well separated, indicating enantioselective binding between the protein and the analytes. The influence of chromatographic parameters-type and concentration of the organic modifier, buffer type, pH, ionic strength of the mobile phase, flow rate and column temperature-on the chromatographic responses (retention factor and selectivity) was analyzed in detail. The results revealed that the eutomer S-APR bound to the protein to a greater extent than the antipode. The classical van 't Hoff method was applied for thermodynamic analysis, which indicated that the enantioseparation was enthalpy-controlled. The stability constants of the protein-enantiomer complexes, determined by fluorescence spectroscopy, were in accordance with the elution order observed in HPLC (KR-APR-HSA = 6.45 × 103 M-1, KS-APR-HSA = 1.04 × 104 M-1), showing that, indeed, the later-eluting S-APR displayed a stronger binding with HSA. Molecular docking was applied to study and analyze the interactions between HSA and the APR enantiomers at the atomic level. It was revealed that the most favored APR binding occurred at the border between domains I and II of HSA, and secondary interactions were responsible for the different binding strengths of the enantiomers.
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Affiliation(s)
- Gergely Dombi
- Department of Pharmaceutical Chemistry, Semmelweis University, H-1085 Budapest, Hungary
| | - Péter Horváth
- Department of Pharmaceutical Chemistry, Semmelweis University, H-1085 Budapest, Hungary
| | - Béla Fiser
- Higher Education and Industrial Cooperation Centre, University of Miskolc, Egyetemváros, H-3515 Miskolc, Hungary
- Department of Biology and Chemistry, Ferenc Rakoczi II Transcarpathian Hungarian College of Higher Education, Transcarpathia, 90200 Beregszasz, Ukraine
- Department of Physical Chemistry, Faculty of Chemistry, University of Lodz, 90-149 Łódź, Poland
| | - Arash Mirzahosseini
- Department of Pharmaceutical Chemistry, Semmelweis University, H-1085 Budapest, Hungary
| | - Máté Dobó
- Department of Pharmaceutical Chemistry, Semmelweis University, H-1085 Budapest, Hungary
| | - Zoltán-István Szabó
- Department of Pharmaceutical Industry and Management, Faculty of Pharmacy, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, 540142 Targu Mures, Romania
- Sz-imfidum Ltd., 525401 Lunga, Romania
| | - Gergő Tóth
- Department of Pharmaceutical Chemistry, Semmelweis University, H-1085 Budapest, Hungary
- Correspondence:
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