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Lakshminarayanan K, Murugan D, Venkatesan J, Vasanthakumari Thirumalaiswamy H, Gadais C, Rangasamy L. Siderophore-Conjugated Antifungals: A Strategy to Potentially Cure Fungal Infections. ACS Infect Dis 2024. [PMID: 38905481 DOI: 10.1021/acsinfecdis.4c00046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/23/2024]
Abstract
Fungi pose a global threat to humankind due to the increasing emergence of multi-drug-resistant fungi. There is a rising incidence of invasive fungal infections. Due to the structural complexity of fungal cell membranes, only a few classes of antifungal agents are effective and have been approved by the U.S. FDA. Hence, researchers globally are focusing on developing novel strategies to cure fungal infections. One of the potential strategies is the "Trojan horse" approach, which uses the siderophore-mediated iron acquisition (SIA) system to scavenge iron to deliver potent antifungal agents for therapeutics and diagnostics. These siderophore conjugates chelate to iron and are taken up through siderophore-iron transporters, which are overexpressed exclusively on microbes such as bacteria or fungi, but not mammalian cells. Our comprehensive review delves into recent advancements in the design of siderophore-conjugated antifungal agents to gain fungal cell entry. Notably, our focus extends to unraveling the intricate relationship between the structure of natural siderophores or siderophore-like molecules and the resulting antifungal activity. By exploring these design strategies, we aim to contribute to the ongoing discourse on combating drug-resistant fungal infections and advancing the landscape of antifungal theranostics.
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Affiliation(s)
- Kalaiarasu Lakshminarayanan
- Department of Chemistry, School of Advanced Sciences (SAS), Vellore Institute of Technology, Vellore 632014, India
- Drug Discovery Unit (DDU), Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology, Vellore 632014, India
| | - Dhanashree Murugan
- Drug Discovery Unit (DDU), Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology, Vellore 632014, India
| | - Janarthanan Venkatesan
- Department of Chemistry, School of Advanced Sciences (SAS), Vellore Institute of Technology, Vellore 632014, India
- Drug Discovery Unit (DDU), Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology, Vellore 632014, India
| | - Harashkumar Vasanthakumari Thirumalaiswamy
- Department of Chemistry, School of Advanced Sciences (SAS), Vellore Institute of Technology, Vellore 632014, India
- Drug Discovery Unit (DDU), Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology, Vellore 632014, India
| | - Charlène Gadais
- ISCR UMR 6226 (Institute of Chemical Sciences of Rennes), Faculty of Pharmacy, University of Rennes, 35042 Rennes cedex, France
| | - Loganathan Rangasamy
- Drug Discovery Unit (DDU), Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology, Vellore 632014, India
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Zhan LY, Zhou Y, Li N, Zhang LJ, Xi XJ, Yao ZQ, Zhao JP, Bu XH. A High Working Temperature Multiferroic Induced by Inverse Temperature Symmetry Breaking. J Am Chem Soc 2024; 146:5414-5422. [PMID: 38353405 DOI: 10.1021/jacs.3c12842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Molecular-based multiferroic materials that possess ferroelectric and ferroelastic orders simultaneously have attracted tremendous attention for their potential applications in multiple-state memory devices, molecular switches, and information storage systems. However, it is still a great challenge to effectively construct novel molecular-based multiferroic materials with multifunctionalities. Generally, the structure of these materials possess high symmetry at high temperatures, while processing an obvious order-disorder or displacement-type ferroelastic or ferroelectric phase transition triggered by symmetry breaking during the cooling processes. Therefore, these materials can only function below the Curie temperature (Tc), the low of which is a severe impediment to their practical application. Despite great efforts to elevate Tc, designing single-phase crystalline materials that exhibit multiferroic orders above room temperature remains a challenge. Here, an inverse temperature symmetry-breaking phenomenon was achieved in [FPM][Fe3(μ3-O)(μ-O2CH)8] (FPM stands for 3-(3-formylamino-propyl)-3,4,5,6-tetrahydropyrimidin-1-ium, which acts as the counterions and the rotor component in the network), enabling a ferroelastoelectric phase at a temperature higher than Tc (365 K). Upon heating from room temperature, two-step distinct symmetry breaking with the mm2Fm species leads to the coexistence of ferroelasticity and ferroelectricity in the temperature interval of 365-426 K. In the first step, the FPM cations undergo a conformational flip-induced inverse temperature symmetry breaking; in the second step, a typical ordered-disordered motion-induced symmetry breaking phase transition can be observed, and the abnormal inverse temperature symmetry breaking is unprecedented. Except for the multistep ferroelectric and ferroelastic switching, this complex also exhibits fascinating nonlinear optical switching properties. These discoveries not only signify an important step in designing novel molecular-based multiferroic materials with high working temperatures, but also inspire their multifunctional applications such as multistep switches.
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Affiliation(s)
- Lei-Yu Zhan
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- School of Materials Science and Engineering, Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300350, China
| | - Yu Zhou
- School of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology, Tianjin 300384, China
| | - Na Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Lin-Jie Zhang
- School of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology, Tianjin 300384, China
| | - Xiao-Juan Xi
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zhao-Quan Yao
- School of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology, Tianjin 300384, China
| | - Jiong-Peng Zhao
- School of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology, Tianjin 300384, China
| | - Xian-He Bu
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- School of Materials Science and Engineering, Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Nankai University, Tianjin 300350, China
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Guan W, Fang Z, Chen Y, Li Y, Peng Z, Sun L, Deng Q, Gooneratne R. Cadmium-chelating ability of the siderophore DHBS secreted by Leclercia adecarboxylata FCH-CR2 and its action mechanism. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 900:165850. [PMID: 37516178 DOI: 10.1016/j.scitotenv.2023.165850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/15/2023] [Accepted: 07/26/2023] [Indexed: 07/31/2023]
Abstract
As one of the most accumulative toxic heavy metals, cadmium (Cd) poses a major threat to human health. Bacterial siderophores, as small molecules with metal-absorbing ability, have great potential activity for Cd-reduction. In this study, the siderophore-producing bacterialstrain FCH-CR2 was isolated from a high-Cd contaminated soil using the CAS method. Leclercia adecarboxylata was identified through 16S rRNA sequence, homology analysis, colony morphology, physiological and biochemical tests. A siderophore, catechol type 2,3-dihydroxy-N-benzoyl-l-serine (DHBS) secreted by FCH-CR2, was purified using RP-HPLC and identified by LC-MS/MS. Intraperitoneal injection of DHBS significantly increased fecal Cd levels, and reduced Cd accumulation in organs. In density flooding theory (DFT) analysis, DHBS may bind to Cd via the hydroxyl site on the benzene ring. Besides, the isothermal titration calorimetry (ITC) assay revealed that the formation of Cd-DHBS is a spontaneous and endothermic reaction with ΔG = -21.4 kJ/mol and ΔH = 1.51 ± 0.142 kJ/mol.
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Affiliation(s)
- Wenhao Guan
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Guangdong Ocean University, Zhanjiang 524088, China
| | - Zhijia Fang
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Guangdong Ocean University, Zhanjiang 524088, China.
| | - Yinyan Chen
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Guangdong Ocean University, Zhanjiang 524088, China
| | - Yongbin Li
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Guangdong Ocean University, Zhanjiang 524088, China
| | - Zhilan Peng
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China
| | - Lijun Sun
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Guangdong Ocean University, Zhanjiang 524088, China
| | - Qi Deng
- College of Food Science and Technology, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Marine Food, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Guangdong Ocean University, Zhanjiang 524088, China
| | - Ravi Gooneratne
- Department of Wine, Food and Molecular Biosciences, Lincoln University, Lincoln, Canterbury 7647, New Zealand
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Khare E, Grewal DS, Buehler MJ. Bond clusters control rupture force limit in shear loaded histidine-Ni 2+ metal-coordinated proteins. NANOSCALE 2023; 15:8578-8588. [PMID: 37092811 DOI: 10.1039/d3nr01287e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Dynamic noncovalent interactions are pivotal to the structure and function of biological proteins and have been used in bioinspired materials for similar roles. Metal-coordination bonds, in particular, are especially tunable and enable control over static and dynamic properties when incorporated into synthetic materials. Despite growing efforts to engineer metal-coordination bonds to produce strong, tough, and self-healing materials, the systematic characterization of the exact contribution of these bonds towards mechanical strength and the effect of geometric arrangements is missing, limiting the full design potential of these bonds. In this work, we engineer the cooperative rupture of metal-coordination bonds to increase the rupture strength of metal-coordinated peptide dimers. Utilizing all-atom steered molecular dynamics simulations on idealized bidentate histidine-Ni2+ coordinated peptides, we show that histidine-Ni2+ bonds can rupture cooperatively in groups of two to three bonds. We find that there is a strength limit, where adding additional coordination bonds does not contribute to the additional increase in the protein rupture strength, likely due to the highly heterogeneous rupture behavior exhibited by the coordination bonds. Further, we show that this coordination bond limit is also found natural metal-coordinated biological proteins. Using these insights, we quantitatively suggest how other proteins can be rationally designed with dynamic noncovalent interactions to exhibit cooperative bond breaking behavior. Altogether, this work provides a quantitative analysis of the cooperativity and intrinsic strength limit for metal-coordination bonds with the aim of advancing clear guiding molecular principles for the mechanical design of metal-coordinated materials.
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Affiliation(s)
- Eesha Khare
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
- Laboratory for Atomistic and Molecular Mechanics, Massachusetts Institute of Technology, 33 Massachusetts Avenue, Cambridge, MA 02139, USA.
| | - Darshdeep S Grewal
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
- Laboratory for Atomistic and Molecular Mechanics, Massachusetts Institute of Technology, 33 Massachusetts Avenue, Cambridge, MA 02139, USA.
| | - Markus J Buehler
- Laboratory for Atomistic and Molecular Mechanics, Massachusetts Institute of Technology, 33 Massachusetts Avenue, Cambridge, MA 02139, USA.
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Abbasi U, Abbina S, Gill A, Takuechi LE, Kizhakkedathu JN. Role of Iron in the Molecular Pathogenesis of Diseases and Therapeutic Opportunities. ACS Chem Biol 2021; 16:945-972. [PMID: 34102834 DOI: 10.1021/acschembio.1c00122] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Iron is an essential mineral that serves as a prosthetic group for a variety of proteins involved in vital cellular processes. The iron economy within humans is highly conserved in that there is no proper iron excretion pathway. Therefore, iron homeostasis is highly evolved to coordinate iron acquisition, storage, transport, and recycling efficiently. A disturbance in this state can result in excess iron burden in which an ensuing iron-mediated generation of reactive oxygen species imparts widespread oxidative damage to proteins, lipids, and DNA. On the contrary, problems in iron deficiency either due to genetic or nutritional causes can lead to a number of iron deficiency disorders. Iron chelation strategies have been in the works since the early 1900s, and they still remain the most viable therapeutic approach to mitigate the toxic side effects of excess iron. Intense investigations on improving the efficacy of chelation strategies while being well tolerated and accepted by patients have been a particular focus for many researchers over the past 30 years. Moreover, recent advances in our understanding on the role of iron in the pathogenesis of different diseases (both in iron overload and iron deficiency conditions) motivate the need to develop new therapeutics. We summarized recent investigations into the role of iron in health and disease conditions, iron chelation, and iron delivery strategies. Information regarding small molecule as well as macromolecular approaches and how they are employed within different disease pathogenesis such as primary and secondary iron overload diseases, cancer, diabetes, neurodegenerative diseases, infections, and in iron deficiency is provided.
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Affiliation(s)
- Usama Abbasi
- Centre for Blood Research, Life Sciences Institute, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z3
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z7
| | - Srinivas Abbina
- Centre for Blood Research, Life Sciences Institute, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z3
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z7
| | - Arshdeep Gill
- Centre for Blood Research, Life Sciences Institute, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z3
- Department of Chemistry, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - Lily E. Takuechi
- Centre for Blood Research, Life Sciences Institute, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z3
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z7
| | - Jayachandran N. Kizhakkedathu
- Centre for Blood Research, Life Sciences Institute, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z3
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z7
- Department of Chemistry, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
- The School of Biomedical Engineering, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z3
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Enhanced Fe 3+ binding through cooperativity of 3-hydroxypyridin-4-one groups within a linear co-polymer: wrapping effect leading to superior antimicrobial activity. Biometals 2020; 33:339-351. [PMID: 33074473 DOI: 10.1007/s10534-020-00253-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 09/23/2020] [Indexed: 12/12/2022]
Abstract
To tackle the rise of antibiotic resistant pathogenic microbes, iron withdrawal agents have shown considerable promise as antibiotic alternatives due to the microbes' irreplaceable metabolic need for the essential element iron. DIBI is a water-soluble, linear co-polymer functionalized with 3-hydroxy-pyridin-4-one (HPO) chelators that selectively and strongly bind iron(III) in biological environments. Compared to HPO congeners, DIBI has over 1000 times higher antimicrobial activity against a broad-spectrum of Gram-(+) and Gram-(-) bacteria including highly antibiotic resistant clinical isolates. Herein, we explain the enhanced antimicrobial activity of DIBI by a cooperativity effect of the linear co-polymer wrapping around three iron(III) centres. DIBI's structural and iron(III) binding properties were investigated by comparative experiments against HPO monomer and deferiprone using chemical and physical characterization methods with direct biological implications such as pH stability, reductive off-loading of bound iron(III), trans-membrane permeability, and competition experiments with vertebrate transferrin class iron carrier. The three iron(III) ions bound to DIBI are preferentially incorporated into a tris-bidentate chelates, which forces the linear backbone of the polymer to wrap around the complexes, as the bound iron was much less susceptible to dithionite reduction than the tris iron(III) complexes of HPO monomers and deferiprone. The results suggest a high degree of cooperativity of the polymer-bound HPO groups to effect a wrapping of the polymer backbone around the chelated iron, shielding the iron(III) centres from ready access by microbes. The structural effect of DIBI is compared to polymers containing 3-hydroxy-pyridin-4-one chelators that do not undergo this wrapping effect.
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