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Zhao CR, You ZL, Bai L. Fungal Plasma Membrane H +-ATPase: Structure, Mechanism, and Drug Discovery. J Fungi (Basel) 2024; 10:273. [PMID: 38667944 PMCID: PMC11051447 DOI: 10.3390/jof10040273] [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: 01/31/2024] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/28/2024] Open
Abstract
The fungal plasma membrane H+-ATPase (Pma1) pumps protons out of the cell to maintain the transmembrane electrochemical gradient and membrane potential. As an essential P-type ATPase uniquely found in fungi and plants, Pma1 is an attractive antifungal drug target. Two recent Cryo-EM studies on Pma1 have revealed its hexameric architecture, autoinhibitory and activation mechanisms, and proton transport mechanism. These structures provide new perspectives for the development of antifungal drugs targeting Pma1. In this article, we review the history of Pma1 structure determination, the latest structural insights into Pma1, and drug discoveries targeting Pma1.
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Affiliation(s)
- Chao-Ran Zhao
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
- Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing 100005, China
| | - Zi-Long You
- Department of Biophysics, School of Basic Medical Sciences, Peking University, Beijing 100083, China
| | - Lin Bai
- Department of Biophysics, School of Basic Medical Sciences, Peking University, Beijing 100083, China
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2
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Liang X, Pacuła-Miszewska AJ, Vartak R, Prajapati M, Zheng H, Zhao C, Mao G, Patel K, Fedosova NU, Ścianowski J, Billack B. N-3-Methylbutyl-benzisoselenazol-3(2H)-one Exerts Antifungal Activity In Vitro and in a Mouse Model of Vulvovaginal Candidiasis. Curr Issues Mol Biol 2024; 46:2480-2496. [PMID: 38534773 DOI: 10.3390/cimb46030157] [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: 01/08/2024] [Revised: 03/04/2024] [Accepted: 03/04/2024] [Indexed: 03/28/2024] Open
Abstract
In the present work, we evaluated the antifungal activities of two novel ebselen analogs, N-allyl-benzisoselenazol-3(2H)-one (N-allyl-bs) and N-3-methylbutylbenzisoselenazol-3(2H)-one (N-3mb-bs). Colorimetric and turbidity assays were performed to determine the minimum inhibitory concentration (MIC) of these compounds in S1 (fluconazole-sensitive) and S2 (fluconazole-resistant) strains of C. albicans. N-3mb-bs was more active than the N-allyl-bs compound. It is noteworthy that the concentration of N-3mb-bs observed to inhibit fungal growth by 50% (18.2 µM) was similar to the concentration observed to inhibit the activity of the yeast plasma membrane H+-ATPase (Pma1p) by 50% (19.6 µM). We next implemented a mouse model of vulvovaginal candidiasis (VVC) using the S1 strain and examined the mouse and yeast proteins present in the vaginal lavage fluid using proteomics. The yeast proteins detected were predominately glycolytic enzymes or virulence factors associated with C. albicans while the mouse proteins present in the lavage fluid included eosinophil peroxidase, desmocollin-1, and gasdermin-A. We then utilized the N-3mb-bs compound (12.5 mg/kg) in the mouse VVC model and observed that it significantly reduced the vaginal fungal burden, histopathological changes in vagina tissue, and expression of myeloperoxidase (MPO). All in all, the present work has identified a potentially promising drug candidate for VVC treatment.
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Affiliation(s)
- Xiuyi Liang
- Department of Pharmaceutical Sciences, St. John's University, Queens, NY 11439, USA
| | | | - Richa Vartak
- Department of Pharmaceutical Sciences, St. John's University, Queens, NY 11439, USA
| | - Milankumar Prajapati
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI 02912, USA
| | - Haiyan Zheng
- Center for Advanced Biotechnology and Medicine, Piscataway, NJ 08854, USA
| | - Caifeng Zhao
- Center for Advanced Biotechnology and Medicine, Piscataway, NJ 08854, USA
| | - Ganming Mao
- Department of Pharmaceutical Sciences, St. John's University, Queens, NY 11439, USA
| | - Ketankumar Patel
- Department of Pharmaceutical Sciences, St. John's University, Queens, NY 11439, USA
| | | | - Jacek Ścianowski
- Faculty of Chemistry, Nicolaus Copernicus University, 87-100 Toruń, Poland
| | - Blase Billack
- Department of Pharmaceutical Sciences, St. John's University, Queens, NY 11439, USA
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Young MR, Heit S, Bublitz M. Structure, function and biogenesis of the fungal proton pump Pma1. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2024; 1871:119600. [PMID: 37741574 DOI: 10.1016/j.bbamcr.2023.119600] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 08/19/2023] [Accepted: 09/18/2023] [Indexed: 09/25/2023]
Abstract
The fungal plasma membrane proton pump Pma1 is an integral plasma membrane protein of the P-type ATPase family. It is an essential enzyme responsible for maintaining a constant cytosolic pH and for energising the plasma membrane to secondary transport processes. Due to its importance for fungal survival and absence from animals, Pma1 is also a highly sought-after drug target. Until recently, its characterisation has been limited to functional, mutational and localisation studies, due to a lack of high-resolution structural information. The determination of three cryo-EM structures of Pma1 in its unique hexameric state offers a new level of understanding the molecular mechanisms underlying the protein's stability, regulated activity and druggability. In light of this context, this article aims to review what we currently know about the structure, function and biogenesis of fungal Pma1.
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Affiliation(s)
- Margaret R Young
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford OX1 3QU, United Kingdom
| | - Sabine Heit
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford OX1 3QU, United Kingdom
| | - Maike Bublitz
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford OX1 3QU, United Kingdom.
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Liang X, Pacuła-Miszewska AJ, Obieziurska-Fabisiak M, Vartak R, Mao G, Patel K, Fedosova NU, Ścianowski J, Billack B. Selected N-Terpenyl Organoselenium Compounds Possess Antimycotic Activity In Vitro and in a Mouse Model of Vulvovaginal Candidiasis. Molecules 2023; 28:7377. [PMID: 37959796 PMCID: PMC10647704 DOI: 10.3390/molecules28217377] [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: 08/29/2023] [Revised: 10/20/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
In the present work, a series of N-terpenyl organoselenium compounds (CHB1-6) were evaluated for antimycotic activity by determining the minimum inhibitory concentration (MIC) for each compound in fluconazole (FLU)-sensitive (S1) and FLU-resistant (S2) strains of Candida albicans (C. albicans). The most active compounds in the MIC screen were CHB4 and CHB6, which were then evaluated for cytotoxicity in human cervical cancer cells (KB-3-1) and found to be selective for fungi. Next, CHB4 and CHB6 were investigated for skin irritation using a reconstructed 3D human epidermis and both compounds were considered safe to the epidermis. Using a mouse model of vulvovaginal candidiasis (VVC), CHB4 and CHB6 both exhibited antimycotic efficacy by reducing yeast colonization of the vaginal tract, alleviating injury to the vaginal mucosa, and decreasing the abundance of myeloperoxidase (MPO) expression in the tissue, indicating a reduced inflammatory response. In conclusion, CHB4 and CHB6 demonstrate antifungal activity in vitro and in the mouse model of VVC and represent two new promising antifungal agents.
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Affiliation(s)
- Xiuyi Liang
- Department of Pharmaceutical Sciences, St. John’s University, Queens, NY 11439, USA; (X.L.); (R.V.); (G.M.); (K.P.)
| | - Agata J. Pacuła-Miszewska
- Faculty of Chemistry, Nicolaus Copernicus University, 87-100 Toruń, Poland; (A.J.P.-M.); (M.O.-F.); (J.Ś.)
| | | | - Richa Vartak
- Department of Pharmaceutical Sciences, St. John’s University, Queens, NY 11439, USA; (X.L.); (R.V.); (G.M.); (K.P.)
| | - Ganming Mao
- Department of Pharmaceutical Sciences, St. John’s University, Queens, NY 11439, USA; (X.L.); (R.V.); (G.M.); (K.P.)
| | - Ketankumar Patel
- Department of Pharmaceutical Sciences, St. John’s University, Queens, NY 11439, USA; (X.L.); (R.V.); (G.M.); (K.P.)
| | | | - Jacek Ścianowski
- Faculty of Chemistry, Nicolaus Copernicus University, 87-100 Toruń, Poland; (A.J.P.-M.); (M.O.-F.); (J.Ś.)
| | - Blase Billack
- Department of Pharmaceutical Sciences, St. John’s University, Queens, NY 11439, USA; (X.L.); (R.V.); (G.M.); (K.P.)
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Liang X, Menon S, Vartak R, Gaida R, Wojaczyńska E, Patel K, Billack B. Nanoformulation of a novel potent ebselen analog for treatment of vulvovaginal candidiasis. Nanomedicine (Lond) 2023; 18:1195-1206. [PMID: 37724540 DOI: 10.2217/nnm-2022-0323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023] Open
Abstract
Background: Vulvovaginal candidiasis is primarily caused by Candida albicans (C. albicans). Here, a novel organoselenium compound (G20) was synthesized and evaluated for anti-Candida activity. Methods: Growth-inhibition studies and medium acidification assays to assess the inhibition of the yeast plasma membrane H+-ATPase (Pma1p) were carried out in vitro using G20. A self-nanoemulsifying formulation (SNEP) of G20 was prepared and evaluated for antimycotic activity in a mouse model. Results: G20 inhibited the growth of C. albicans through a mechanism that, at least in part, involves the inhibition of Pma1p. The G20-SNEP formulation significantly reduced vaginal colonization and vaginal inflammation relative to yeast-infected but untreated control mice. Conclusion: G20-SNEP exhibits potent antimycotic activity in a mouse model of vulvovaginal candidiasis.
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Affiliation(s)
- Xiuyi Liang
- Department of Pharmaceutical Sciences, St. John's University, Queens, NY, USA
| | - Suvidha Menon
- Department of Pharmaceutical Sciences, St. John's University, Queens, NY, USA
| | - Richa Vartak
- Department of Pharmaceutical Sciences, St. John's University, Queens, NY, USA
| | - Radosław Gaida
- Wrocław University of Science & Technology, Wrocław, 50-370, Poland
| | | | - Ketankumar Patel
- Department of Pharmaceutical Sciences, St. John's University, Queens, NY, USA
| | - Blase Billack
- Department of Pharmaceutical Sciences, St. John's University, Queens, NY, USA
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McMahon CL, Esqueda M, Yu JJ, Wall G, Romo JA, Vila T, Chaturvedi A, Lopez-Ribot JL, Wormley F, Hung CY. Development of an Imaging Flow Cytometry Method for Fungal Cytological Profiling and Its Potential Application in Antifungal Drug Development. J Fungi (Basel) 2023; 9:722. [PMID: 37504711 PMCID: PMC10381375 DOI: 10.3390/jof9070722] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 06/27/2023] [Accepted: 06/29/2023] [Indexed: 07/29/2023] Open
Abstract
Automated imaging techniques have been in increasing demand for the more advanced analysis and efficient characterization of cellular phenotypes. The success of the image-based profiling method hinges on assays that can rapidly and simultaneously capture a wide range of phenotypic features. We have developed an automated image acquisition method for fungal cytological profiling (FCP) using an imaging flow cytometer that can objectively measure over 250 features of a single fungal cell. Fungal cells were labeled with calcofluor white and FM4-64FX, which bind to the cell wall and lipophilic membrane, respectively. Images of single cells were analyzed using IDEAS® software. We first acquired FCPs of fungal cells treated with fluconazole, amphotericin B, and caspofungin, each with a distinct mode of action, to establish FCP databases of profiles associated with specific antifungal treatment. Once fully established, we investigated the potential application of this technique as a screening methodology to identify compounds with novel antifungal activity against Candida albicans and Cryptococcus neoformans. Altogether, we have developed a rapid, powerful, and novel image-profiling method for the phenotypic characterization of fungal cells, also with potential applications in antifungal drug development.
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Affiliation(s)
- Courtney L McMahon
- Department of Molecular Microbiology and Immunology and South Texas Center for Emerging Infectious Diseases, The University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Marisol Esqueda
- Department of Molecular Microbiology and Immunology and South Texas Center for Emerging Infectious Diseases, The University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Jieh-Juen Yu
- Department of Molecular Microbiology and Immunology and South Texas Center for Emerging Infectious Diseases, The University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Gina Wall
- Department of Molecular Microbiology and Immunology and South Texas Center for Emerging Infectious Diseases, The University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Jesus A Romo
- Department of Molecular Microbiology and Immunology and South Texas Center for Emerging Infectious Diseases, The University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Taissa Vila
- Department of Molecular Microbiology and Immunology and South Texas Center for Emerging Infectious Diseases, The University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Ashok Chaturvedi
- Department of Molecular Microbiology and Immunology and South Texas Center for Emerging Infectious Diseases, The University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Jose L Lopez-Ribot
- Department of Molecular Microbiology and Immunology and South Texas Center for Emerging Infectious Diseases, The University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Floyd Wormley
- Department of Molecular Microbiology and Immunology and South Texas Center for Emerging Infectious Diseases, The University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Chiung-Yu Hung
- Department of Molecular Microbiology and Immunology and South Texas Center for Emerging Infectious Diseases, The University of Texas at San Antonio, San Antonio, TX 78249, USA
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Initial Results of the International Efforts in Screening New Agents against Candida auris. J Fungi (Basel) 2022; 8:jof8080771. [PMID: 35893139 PMCID: PMC9330594 DOI: 10.3390/jof8080771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/07/2022] [Accepted: 07/11/2022] [Indexed: 12/10/2022] Open
Abstract
BACKGROUND Candida auris is an emergent fungal pathogen and a global concern, mostly due to its resistance to many currently available antifungal drugs. OBJECTIVE Thus, in response to this challenge, we evaluated the in vitro activity of potential new drugs, diphenyl diselenide (PhSe)2 and nikkomycin Z (nikZ), alone and in association with currently available antifungals (azoles, echinocandins, and polyenes) against Candida auris. METHODS Clinical isolates of C. auris were tested in vitro. (PhSe)2 and nikZ activities were tested alone and in combination with amphotericin B, fluconazole, or the echinocandins, micafungin and caspofungin. RESULTS (PhSe)2 alone was unable to inhibit C. auris, and antagonism or indifferent effects were observed in the combination of this compound with the antifungals tested. NikZ appeared not active alone either, but frequently acted cooperatively with conventional antifungals. CONCLUSION Our data show that (PhSe)2 appears to not have a good potential to be a candidate in the development of new drugs to treat C. auris, but that nikZ is worthy of further study.
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8
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Chen Z, Li J, Wan Y, Bai R, Wang W, Gao X, Li D, Hu Q, Li Y, Ruan BH. Rapid High-Throughput Assay Identified Gemcitabine and Derivatives As Potent Inhibitors Against Multidrug-Resistant Staphylococcus aureus. Assay Drug Dev Technol 2022; 20:175-182. [DOI: 10.1089/adt.2022.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Zhao Chen
- College of Pharmaceutical Science, Collaborative Innovation Center of Yangtza River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, China
| | - Jinxiu Li
- College of Pharmaceutical Science, Collaborative Innovation Center of Yangtza River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, China
| | - Yue Wan
- College of Pharmaceutical Science, Collaborative Innovation Center of Yangtza River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, China
| | - Ruisong Bai
- College of Pharmaceutical Science, Collaborative Innovation Center of Yangtza River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, China
| | - Wenjuan Wang
- College of Pharmaceutical Science, Collaborative Innovation Center of Yangtza River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, China
| | - Xuan Gao
- College of Pharmaceutical Science, Collaborative Innovation Center of Yangtza River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, China
| | - Di Li
- College of Pharmaceutical Science, Collaborative Innovation Center of Yangtza River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, China
| | - Qingfeng Hu
- Clinical Diagnostic Lab, Zhejiang Provincial People's Hospital, Hangzhou, China
| | - Yong Li
- Hangzhou Simbiospharma Co. Ltd., Hangzhou, China
| | - Benfang Helen Ruan
- College of Pharmaceutical Science, Collaborative Innovation Center of Yangtza River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, China
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Souza LAL, Dias LP, Araújo NMS, Carneiro RF, Nagano CS, Teixeira CS, Silva RGG, Oliveira JTA, Sousa DOB. JcTI-PepI, a synthetic peptide bioinspired in the trypsin inhibitor from Jatropha curcas, presents potent inhibitory activity against C. krusei, a neglected pathogen. Biochimie 2022; 200:107-118. [PMID: 35623496 DOI: 10.1016/j.biochi.2022.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 05/10/2022] [Accepted: 05/21/2022] [Indexed: 11/16/2022]
Abstract
Antimicrobial resistance has been increasing globally, posing a global public health risk. It has prompted the scientific community to look for alternatives to traditional drugs. Antimicrobial Peptides (AMPs) have stood out in this context because they have the potential to control infectious diseases while causing no or little harm to mammalian cells. In the present study, three peptides, JcTI-PepI, JcTI-PepII, and JcTI-PepIII, were designed and tested for antimicrobial activity based on the primary sequence of JcTI-I, a 2S albumin with trypsin inhibitory activity from Jatropha curcas. JcTI-PepI strongly inhibited C. krusei growth, and it caused severe disruptions in cellular processes and cell morphology. C. krusei cells treated with JcTI-PepI showed indicative of membrane permeabilization and overproduction of Reactive Oxygen Species. Moreover, the yeast's ability to acidify the medium was severely compromised. JcTI-PepI was also effective against pre-formed biofilm and did not harm human erythrocytes and Vero cells. Overall, these characteristics indicate that JcTI-PepI is both safe and effective against C. krusei, an intrinsically resistant strain that causes serious health problems and is frequently overlooked. It implies that this peptide has a high potential for use as a new antimicrobial agent in the future.
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Affiliation(s)
- Larissa A L Souza
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Lucas P Dias
- Departamento de Biofísica, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Nadine M S Araújo
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Rômulo F Carneiro
- Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Celso S Nagano
- Departamento de Engenharia de Pesca, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Claudener S Teixeira
- Centro de Ciências Agrárias e da Biodiversidade, Universidade Federal do Cariri, Crato, CE, Brazil
| | - Rafael G G Silva
- Departamento de Biologia, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - José T A Oliveira
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Daniele O B Sousa
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, CE, Brazil.
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Wen W, Cao H, Huang Y, Tu J, Wan C, Wan J, Han X, Chen H, Liu J, Rao L, Su C, Peng C, Sheng C, Ren Y. Structure-Guided Discovery of the Novel Covalent Allosteric Site and Covalent Inhibitors of Fructose-1,6-Bisphosphate Aldolase to Overcome the Azole Resistance of Candidiasis. J Med Chem 2022; 65:2656-2674. [PMID: 35099959 DOI: 10.1021/acs.jmedchem.1c02102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Fructose-1,6-bisphosphate aldolase (FBA) represents an attractive new antifungal target. Here, we employed a structure-based optimization strategy to discover a novel covalent binding site (C292 site) and the first-in-class covalent allosteric inhibitors of FBA from Candida albicans (CaFBA). Site-directed mutagenesis, liquid chromatography-mass spectrometry, and the crystallographic structures of APO-CaFBA, CaFBA-G3P, and C157S-2a4 revealed that S268 is an essential pharmacophore for the catalytic activity of CaFBA, and L288 is an allosteric regulation switch for CaFBA. Furthermore, most of the CaFBA covalent inhibitors exhibited good inhibitory activity against azole-resistant C. albicans, and compound 2a11 can inhibit the growth of azole-resistant strains 103 with the MIC80 of 1 μg/mL. Collectively, this work identifies a new covalent allosteric site of CaFBA and discovers the first generation of covalent inhibitors for fungal FBA with potent inhibitory activity against resistant fungi, establishing a structural foundation and providing a promising strategy for the design of potent antifungal drugs.
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Affiliation(s)
- Wuqiang Wen
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Hongxuan Cao
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Yunyuan Huang
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Jie Tu
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Chen Wan
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Jian Wan
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Xinya Han
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Han Chen
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Jiaqi Liu
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Li Rao
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Chen Su
- National Facility for Protein Science in Shanghai, Zhangjiang Lab, Shanghai 201210, China
| | - Chao Peng
- National Facility for Protein Science in Shanghai, Zhangjiang Lab, Shanghai 201210, China
| | - Chunquan Sheng
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Yanliang Ren
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
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11
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Tumu HCR, Cuffari BJ, Billack B. Combination of ebselen and hydrocortisone substantially reduces nitrogen mustard-induced cutaneous injury. Curr Res Toxicol 2021; 2:375-385. [PMID: 34806038 PMCID: PMC8585582 DOI: 10.1016/j.crtox.2021.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 09/30/2021] [Accepted: 10/19/2021] [Indexed: 11/23/2022] Open
Abstract
The purpose of the present study was to investigate the vesicant countermeasure effects of hydrocortisone (HC) and ebselen (EB-1), administered as monotherapy or as a combination treatment. The mouse ear vesicant model (MEVM) was utilized and test doses of HC (0.016, 0.023, 0.031, 0.047, 0.063, 0.125 or 0.250 mg/ear), EB-1 (0.125, 0.187, 0.250, 0.375 or 0.500 mg/ear) or the combination of HC + EB-1 were topically applied at 15 min, 4 h and 8 h after nitrogen mustard exposure. Ear punch biopsies were obtained 24 h after mechlorethamine (HN2) exposure. Compared to control ears, ear tissues exposed topically to HN2 (0.500 µmol/ear) presented with an increase in ear thickness, vesication, TUNEL fluorescence and expression of matrix metalloproteinase 9 (MMP-9) and inducible nitric oxide synthase (iNOS). In contrast, HN2 exposed ears treated topically with EB-1 showed a significant decrease in morphometric thickness and vesication vs. HN2 alone. Ear tissues exposed to HN2 and then treated with HC also demonstrated reductions in morphometric thickness and vesication. Combination treatment of HC + EB-1 was found to be the most effective at reducing HN2-induced ear edema and vesication. The combination also dramatically decreased HN2-mediated cutaneous expression of iNOS and MMP-9 and decreased HN2-induced TUNEL staining. Taken together, our study demonstrates that the combination of HC + EB-1 is an efficacious countermeasure to HN2.
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Affiliation(s)
- Hemanta C Rao Tumu
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Jamaica, NY, USA
| | - Benedette J. Cuffari
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Jamaica, NY, USA
| | - Blase Billack
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Jamaica, NY, USA
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12
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Santi C, Scimmi C, Sancineto L. Ebselen and Analogues: Pharmacological Properties and Synthetic Strategies for Their Preparation. Molecules 2021; 26:4230. [PMID: 34299505 PMCID: PMC8306772 DOI: 10.3390/molecules26144230] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/07/2021] [Accepted: 07/09/2021] [Indexed: 02/06/2023] Open
Abstract
Ebselen is the leader of selenorganic compounds, and starting from its identification as mimetic of the key antioxidant enzyme glutathione peroxidase, several papers have appeared in literature claiming its biological activities. It was the subject of several clinical trials and it is currently in clinical evaluation for the treatment of COVID-19 patients. Given our interest in the synthesis and pharmacological evaluation of selenorganic derivatives with this review, we aimed to collect all the papers focused on the biological evaluation of ebselen and its close analogues, covering the timeline between 2016 and most of 2021. Our analysis evidences that, even if it lacks specificity when tested in vitro, being able to bind to every reactive cysteine, it proved to be always well tolerated in vivo, exerting no sign of toxicity whatever the administered doses. Besides, looking at the literature, we realized that no review article dealing with the synthetic approaches for the construction of the benzo[d][1,2]-selenazol-3(2H)-one scaffold is available; thus, a section of the present review article is completely devoted to this specific topic.
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Affiliation(s)
| | | | - Luca Sancineto
- Group of Catalysis and Green Organic Chemistry, Department of Pharmaceutical Sciences, University of Perugia Via del Liceo 1, 06122 Perugia, Italy; (C.S.); (C.S.)
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13
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Menon S, Vartak R, Patel K, Billack B. Evaluation of the antifungal activity of an ebselen-loaded nanoemulsion in a mouse model of vulvovaginal candidiasis. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2021; 37:102428. [PMID: 34217850 DOI: 10.1016/j.nano.2021.102428] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 04/01/2021] [Accepted: 05/03/2021] [Indexed: 12/20/2022]
Abstract
Vulvovaginal candidiasis (VVC), caused by Candida albicans, is a common infection in women affecting their quality of life. Standard antifungal drugs (e.g., fluconazole, itraconazole) are typically fungistatic or rendered ineffective due to drug resistance indicating an urgent need to build an arsenal of novel antifungal agents. To surmount this issue, we tested the hypothesis that the organoselenium compound ebselen (EB) possesses antifungal efficacy in a mouse model of VVC. EB is a poorly water-soluble drug and DMSO as a vehicle has the potential to exhibit cytotoxic effects when administered in vivo. EB loaded self-nanoemulsifying preconcentrate (EB-SNEP) was developed, characterized in vitro, and tested in a mouse model of VVC. In vivo studies carried out with EB-SNEP (12.5 mg/kg) showed a remarkable decrease in infection by ~562-fold compared to control (infected, untreated animals). Taken together, EB nanoemulsion proved to be an effective and promising antifungal agent.
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Affiliation(s)
- Suvidha Menon
- Department of Pharmaceutical Sciences, St. John's University, Queens, Jamaica, NY, USA
| | - Richa Vartak
- Department of Pharmaceutical Sciences, St. John's University, Queens, Jamaica, NY, USA
| | - Ketankumar Patel
- Department of Pharmaceutical Sciences, St. John's University, Queens, Jamaica, NY, USA.
| | - Blase Billack
- Department of Pharmaceutical Sciences, St. John's University, Queens, Jamaica, NY, USA.
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14
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Antifungal Activity of Novel Formulations Based on Terpenoid Prodrugs against C. albicans in a Mouse Model. Pharmaceutics 2021; 13:pharmaceutics13050633. [PMID: 33946740 PMCID: PMC8146751 DOI: 10.3390/pharmaceutics13050633] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/21/2021] [Accepted: 04/23/2021] [Indexed: 11/17/2022] Open
Abstract
Carvacrol (CAR), a phenolic monoterpenoid, has been extensively investigated for its antimicrobial and antifungal activity. As a result of its poor physicochemical properties, water soluble carvacrol prodrugs (WSCPs) with improved water solubility were previously synthesized and found to possess antimicrobial activity. Here, three novel CAR analogs, WSCP1, WSCP2, and WSCP3, were tested against fluconazole (FLU)-sensitive and -resistant strains where they showed greater antifungal activity than CAR against C. albicans. The probable mechanism by which the CAR prodrugs exert the antifungal activity was studied. Results from medium acidification assays demonstrated that the CAR and its synthetically designed prodrugs inhibit the yeast plasma membrane H+-ATPase (Pma1p), an essential target in fungi. In other words, in vitro data indicated that CAR analogs can prove to be a better alternative to CAR considering their improved water solubility. In addition, CAR and WSCP1 were developed into intravaginal formulations and administered at test doses of 50 mg/kg in a mouse model of vulvovaginal candidiasis (VVC). Whereas the CAR and WSCP1 formulations both exhibited antifungal efficacy in the mouse model of VVC, the WSCP1 formulation was superior to CAR, showing a remarkable decrease in infection by ~120-fold compared to the control (infected, untreated animals). Taken together, a synthetically designed prodrug of CAR, namely WSCP1, proved to be a possible solution for poorly water-soluble drugs, an inhibitor of an essential yeast pump in vitro and an effective and promising antifungal agent in vivo.
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15
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Nogueira CW, Barbosa NV, Rocha JBT. Toxicology and pharmacology of synthetic organoselenium compounds: an update. Arch Toxicol 2021; 95:1179-1226. [PMID: 33792762 PMCID: PMC8012418 DOI: 10.1007/s00204-021-03003-5] [Citation(s) in RCA: 109] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 02/10/2021] [Indexed: 12/17/2022]
Abstract
Here, we addressed the pharmacology and toxicology of synthetic organoselenium compounds and some naturally occurring organoselenium amino acids. The use of selenium as a tool in organic synthesis and as a pharmacological agent goes back to the middle of the nineteenth and the beginning of the twentieth centuries. The rediscovery of ebselen and its investigation in clinical trials have motivated the search for new organoselenium molecules with pharmacological properties. Although ebselen and diselenides have some overlapping pharmacological properties, their molecular targets are not identical. However, they have similar anti-inflammatory and antioxidant activities, possibly, via activation of transcription factors, regulating the expression of antioxidant genes. In short, our knowledge about the pharmacological properties of simple organoselenium compounds is still elusive. However, contrary to our early expectations that they could imitate selenoproteins, organoselenium compounds seem to have non-specific modulatory activation of antioxidant pathways and specific inhibitory effects in some thiol-containing proteins. The thiol-oxidizing properties of organoselenium compounds are considered the molecular basis of their chronic toxicity; however, the acute use of organoselenium compounds as inhibitors of specific thiol-containing enzymes can be of therapeutic significance. In summary, the outcomes of the clinical trials of ebselen as a mimetic of lithium or as an inhibitor of SARS-CoV-2 proteases will be important to the field of organoselenium synthesis. The development of computational techniques that could predict rational modifications in the structure of organoselenium compounds to increase their specificity is required to construct a library of thiol-modifying agents with selectivity toward specific target proteins.
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Affiliation(s)
- Cristina W Nogueira
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica E Toxicológica de Organocalcogênios, Centro de Ciências Naturais E Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil.
| | - Nilda V Barbosa
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica E Toxicológica de Organocalcogênios, Centro de Ciências Naturais E Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil
| | - João B T Rocha
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica E Toxicológica de Organocalcogênios, Centro de Ciências Naturais E Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, CEP 97105-900, Brazil.
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16
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Benelli JL, Poester VR, Munhoz LS, Melo AM, Trápaga MR, Stevens DA, Xavier MO. Ebselen and diphenyl diselenide against fungal pathogens: A systematic review. Med Mycol 2021; 59:409-421. [PMID: 33421963 DOI: 10.1093/mmy/myaa115] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 11/16/2020] [Accepted: 12/18/2020] [Indexed: 12/17/2022] Open
Abstract
Fungal infections are one of the most prevalent diseases in the world and there is a lack of new antifungal drug development for these diseases. We conducted a systematic review of the literature regarding the in vitro antifungal activity of the organoselenium compounds ebselen (Eb) and diphenyl diselenide [(PhSe)2]. A systematic review was carried out based on the search for articles with data concerning Minimal Inhibitory Concentration (MIC) values, indexed in international databases and published until August 2020. A total of 2337 articles were found, and, according to the inclusion and exclusion criteria used, 22 articles were included in the study. Inhibitory activity against 96% (200/208) and 95% (312/328) of the pathogenic fungi tested was described for Eb and [(PhSe)2], respectively. Including in these 536 fungal isolates tested, organoselenium activity was highlighted against Candida spp., Cryptococcus ssp., Trichosporon spp., Aspergillus spp., Fusarium spp., Pythium spp., and Sporothrix spp., with MIC values lower than 64 μg/mL. In conclusion, Eb and [(PhSe)2] have a broad spectrum of in vitro inhibitory antifungal activity. These data added with other pharmacological properties of these organoselenium compounds suggest that both compounds are potential future antifungal drugs. Whether MICs toward the upper end of the ranges described here are compatible with efficacious therapy, and whether they may achieve such end as a result of the favorable non-antimicrobial effects of selenium on the host, requires more in vivo testing.
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Affiliation(s)
- Jéssica Louise Benelli
- Mycology Laboratory, College of Medicine, Federal University of Rio Grande, Rio Grande, RS, Brazil.,Health Science Post-graduation program, College of Medicine, Federal University of Rio Grande, Rio Grande, RS, Brazil
| | - Vanice Rodrigues Poester
- Mycology Laboratory, College of Medicine, Federal University of Rio Grande, Rio Grande, RS, Brazil.,Health Science Post-graduation program, College of Medicine, Federal University of Rio Grande, Rio Grande, RS, Brazil
| | - Lívia Silveira Munhoz
- Mycology Laboratory, College of Medicine, Federal University of Rio Grande, Rio Grande, RS, Brazil.,Health Science Post-graduation program, College of Medicine, Federal University of Rio Grande, Rio Grande, RS, Brazil
| | - Aryse Martins Melo
- Mycology Laboratory, College of Medicine, Federal University of Rio Grande, Rio Grande, RS, Brazil.,Microbiology and Parasitology Post-graduation program, Institute of Biology, Federal University of Pelotas, Pelotas, RS, Brazil
| | | | - David A Stevens
- California Institute for Medical Research, San Jose, California, USA.,Division of Infectious Diseases and Geographic Medicine, Stanford University Medical School, Stanford, California, USA
| | - Melissa Orzechowski Xavier
- Mycology Laboratory, College of Medicine, Federal University of Rio Grande, Rio Grande, RS, Brazil.,Health Science Post-graduation program, College of Medicine, Federal University of Rio Grande, Rio Grande, RS, Brazil.,Microbiology and Parasitology Post-graduation program, Institute of Biology, Federal University of Pelotas, Pelotas, RS, Brazil
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17
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Abstract
Ebselen is a synthetic organoselenium radical scavenger compound that possesses glutathione peroxidase-like activity and its own unique bioactivity by reacting with thiols, hydroperoxides and peroxynitrites. Owing to its high affinity toward several essential reactions, ebselen protects cellular components from oxidative and free radical damage, and it has been employed as a useful tool for studying redox-related mechanisms. Based on numerous in vitro and in vivo research, mechanisms are proposed to understand the biomedical and molecular actions of ebselen in health and disease, and it is currently under clinical trials for the prevention and treatment of various human disorders. Based on these outstanding discoveries, this review summarizes the current understanding of the biochemical and molecular characteristics, pharmacological applications and future directions of ebselen.
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18
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Vartak R, Menon S, Patki M, Billack B, Patel K. Ebselen nanoemulgel for the treatment of topical fungal infection. Eur J Pharm Sci 2020; 148:105323. [DOI: 10.1016/j.ejps.2020.105323] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 03/17/2020] [Accepted: 03/22/2020] [Indexed: 11/25/2022]
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19
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da Silva Neto JX, da Costa HPS, Vasconcelos IM, Pereira ML, Oliveira JTA, Lopes TDP, Dias LP, Araújo NMS, Moura LFWG, Van Tilburg MF, Guedes MIF, Lopes LA, Morais EG, de Oliveira Bezerra de Sousa D. Role of membrane sterol and redox system in the anti-candida activity reported for Mo-CBP 2, a protein from Moringa oleifera seeds. Int J Biol Macromol 2020; 143:814-824. [PMID: 31734363 DOI: 10.1016/j.ijbiomac.2019.09.142] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/19/2019] [Accepted: 09/20/2019] [Indexed: 12/12/2022]
Abstract
Plant proteins are emerging as an alternative to conventional treatments against candidiasis. The aim of this study was to better understand the mechanism of action of Mo-CBP2 against Candida spp, evaluating redox system activity, lipid peroxidation, DNA degradation, cytochrome c release, medium acidification, and membrane interaction. Anti-candida activity of Mo-CBP2 decreased in the presence of ergosterol, which was not observed with antioxidant agents. C. albicans treated with Mo-CBP2 also had catalase and peroxidase activities inhibited, while superoxide dismutase was increased. Mo-CBP2 increased the lipid peroxidation, but it did not alter the ergosterol profile in live cells. External medium acidification was strongly inhibited, and cytochrome c release and DNA degradation were detected. Mo-CBP2 interacts with cell membrane constituents, changes redox system enzymes in C. albicans and causes lipid peroxidation by ROS overproduction. DNA degradation and cytochrome c release suggest apoptotic or DNAse activity. Lipid peroxidation and H+-ATPases inhibition may induce the process of apoptosis. Finally, Mo-CBP2 did not have a cytotoxic effect in mammalian Vero cells. This study highlights the biotechnological potential of Mo-CBP2 as a promising molecule with low toxicity and potent activity. Further studies should be performed to better understand its mode of action and toxicity.
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Affiliation(s)
- João Xavier da Silva Neto
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Ilka Maria Vasconcelos
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Jose Tadeu Abreu Oliveira
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Lucas Pinheiro Dias
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | | | - Mauricio Fraga Van Tilburg
- Northeast Biotechnology Network, Graduate Program of Biotechnology, State University of Ceará, Fortaleza, CE, Brazil
| | - Maria Izabel Florindo Guedes
- Northeast Biotechnology Network, Graduate Program of Biotechnology, State University of Ceará, Fortaleza, CE, Brazil
| | - Larissa Alves Lopes
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Eva Gomes Morais
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
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20
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Ruberte AC, Sanmartin C, Aydillo C, Sharma AK, Plano D. Development and Therapeutic Potential of Selenazo Compounds. J Med Chem 2019; 63:1473-1489. [PMID: 31638805 DOI: 10.1021/acs.jmedchem.9b01152] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Incorporation of selenium (Se) atom into small molecules can substantially enhance their antioxidant, anti-inflammatory, antimutagenic, antitumoral or chemopreventive, antiviral, antibacterial, antifungal, antiparasitic, and neuroprotective effects. Specifically, selenazo compounds have received great attention owing to their chemical properties, pharmaceutical applications, and low toxicity. In this Perspective, we compile extensive literature evidence with the description and discussion of the most recent advances in different selenazo and selenadiazo motifs as potential pharmacological candidates. We also provide some perspectives on the challenges and future directions in the advancement of these selenazo compounds, each of which could generate drug candidates for various diseases.
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Affiliation(s)
- Ana Carolina Ruberte
- Departamento de Tecnología y Química Farmacéuticas, Facultad de Farmacia y Nutrición , Universidad de Navarra , Irunlarrea 1 , E-31008 Pamplona , Spain
| | - Carmen Sanmartin
- Departamento de Tecnología y Química Farmacéuticas, Facultad de Farmacia y Nutrición , Universidad de Navarra , Irunlarrea 1 , E-31008 Pamplona , Spain
| | - Carlos Aydillo
- Departamento de Tecnología y Química Farmacéuticas, Facultad de Farmacia y Nutrición , Universidad de Navarra , Irunlarrea 1 , E-31008 Pamplona , Spain
| | - Arun K Sharma
- Department of Pharmacology, Penn State Cancer Institute, CH72 , Penn State College of Medicine , 500 University Drive , Hershey , Pennsylvania 17033 , United States
| | - Daniel Plano
- Departamento de Tecnología y Química Farmacéuticas, Facultad de Farmacia y Nutrición , Universidad de Navarra , Irunlarrea 1 , E-31008 Pamplona , Spain.,Department of Pharmacology, Penn State Cancer Institute, CH72 , Penn State College of Medicine , 500 University Drive , Hershey , Pennsylvania 17033 , United States
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21
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Rossato L, Loreto ES, Venturini TP, Azevedo MI, Al‐Hatmi AMS, Santurio JM, Alves SH. In vitro combination between antifungals and diphenyl diselenide against
Cryptococcus
species. Mycoses 2019; 62:508-512. [DOI: 10.1111/myc.12905] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 01/30/2019] [Accepted: 01/31/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Luana Rossato
- Postgraduate Program in Pharmaceutical SciencesHealth Sciences CentreFederal University of Santa Maria (UFSM) Santa Maria Rio Grande do Sul Brazil
| | - Erico S. Loreto
- Postgraduate Program in Pharmaceutical SciencesHealth Sciences CentreFederal University of Santa Maria (UFSM) Santa Maria Rio Grande do Sul Brazil
- Faculty of Health SciencesSobresp Santa Maria Rio Grande do Sul Brazil
| | - Tarcieli P. Venturini
- Postgraduate Program in Pharmaceutical SciencesHealth Sciences CentreFederal University of Santa Maria (UFSM) Santa Maria Rio Grande do Sul Brazil
| | - Maria Isabel Azevedo
- Department of Preventive Veterinary MedicineFederal University of Minas Gerais (UFMG) Belo Horizonte Minas Gerais Brazil
| | - Abdullah M. S. Al‐Hatmi
- Westerdijk Fungal Biodiversity Institute Utrecht The Netherlands
- Ministry of HealthDirectorate General of Health Services Ibri Oman
- Centre of Expertise in MycologyRadboud University Medical Centre/Canisius Wilhelmina Hospital Nijmegen The Netherlands
| | - Janio M. Santurio
- Postgraduate Program in PharmacologyHealth Sciences CentreFederal University of Santa Maria (UFSM) Santa Maria Rio Grande do Sul Brazil
| | - Sydney H. Alves
- Postgraduate Program in Pharmaceutical SciencesHealth Sciences CentreFederal University of Santa Maria (UFSM) Santa Maria Rio Grande do Sul Brazil
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22
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Identification of Antifungal H +-ATPase Inhibitors with Effect on Plasma Membrane Potential. Antimicrob Agents Chemother 2017; 61:AAC.00032-17. [PMID: 28438931 PMCID: PMC5487681 DOI: 10.1128/aac.00032-17] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 04/15/2017] [Indexed: 02/07/2023] Open
Abstract
The plasma membrane H+-ATPase (Pma1) is an essential fungal protein and a proposed target for new antifungal medications. The compounds in a small-molecule library containing ∼191,000 commercially available compounds were screened for their ability to inhibit Saccharomyces cerevisiae plasma membranes containing Pma1. The overall hit rate was 0.2%, corresponding to 407 compounds. These hit compounds were further evaluated for ATPase selectivity and broad-spectrum antifungal activity. Following this work, one Pma1 inhibitor series based on compound 14 and analogs was selected for further evaluation. This compound series was able to depolarize the membrane and inhibit extracellular acidification in intact fungal cells concomitantly with a significant increase in intracellular ATP levels. Collectively, we suggest that these effects may be a common feature of Pma1 inhibitors. Additionally, the work uncovered a dual mechanism for the previously identified cationic peptide BM2, revealing fungal membrane disruption, in addition to Pma1 inhibition. The methods presented here provide a solid platform for the evaluation of Pma1-specific inhibitors in a drug development setting. The present inhibitors could serve as a starting point for the development of new antifungal agents with a novel mode of action.
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23
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Giurg M, Gołąb A, Suchodolski J, Kaleta R, Krasowska A, Piasecki E, Piętka-Ottlik M. Reaction of bis[(2-chlorocarbonyl)phenyl] Diselenide with Phenols, Aminophenols, and Other Amines towards Diphenyl Diselenides with Antimicrobial and Antiviral Properties. Molecules 2017; 22:molecules22060974. [PMID: 28604620 PMCID: PMC6152648 DOI: 10.3390/molecules22060974] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 05/30/2017] [Accepted: 06/02/2017] [Indexed: 12/16/2022] Open
Abstract
A reaction of bis[(2-chlorocarbonyl)phenyl] diselenide with various mono and bisnucleophiles such as aminophenols, phenols, and amines have been studied as a convenient general route to a series of new antimicrobial and antiviral diphenyl diselenides. The compounds, particularly bis[2-(hydroxyphenylcarbamoyl)]phenyl diselenides and reference benzisoselenazol-3(2H)-ones, exhibited high antimicrobial activity against Gram-positive bacterial species (Enterococcus spp., Staphylococcus spp.), and some compounds were also active against Gram-negative E. coli and fungi (Candida spp., A. niger). The majority of compounds demonstrated high activity against human herpes virus type 1 (HHV-1) and moderate activity against encephalomyocarditis virus (EMCV), while they were generally inactive against vesicular stomatitis virus (VSV).
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Affiliation(s)
- Mirosław Giurg
- Department of Organic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
| | - Anna Gołąb
- Department of Organic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
| | - Jakub Suchodolski
- Department of Biotransformation, Faculty of Biotechnology, University of Wrocław, Joliot-Curie 14a, 50-383 Wrocław, Poland.
| | - Rafał Kaleta
- Department of Organic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
| | - Anna Krasowska
- Department of Biotransformation, Faculty of Biotechnology, University of Wrocław, Joliot-Curie 14a, 50-383 Wrocław, Poland.
| | - Egbert Piasecki
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland.
| | - Magdalena Piętka-Ottlik
- Department of Organic and Pharmaceutical Technology, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
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