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Zhang M, He S, Han X, Cui J, Wang H, Huo X, Yan F, Feng L, Wang C, Ma X. Discovery of Potential Antituberculosis Agents Targeted Methionine Aminopeptidase 1 of Mycobacterium tuberculosis by the Developed Fluorescent Probe. Anal Chem 2023; 95:16210-16215. [PMID: 37899593 DOI: 10.1021/acs.analchem.3c02952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Tuberculosis (TB) is a chronic systemic infectious disease caused by Mycobacterium tuberculosis (M. tuberculosis). Methionine aminopeptidase 1 (MtMET-AP1) is a hydrolase that mediates the necessary post-translational N-terminal methionine excision (NME) of peptides during protein synthesis, which is necessary for bacterial proliferation and is a potential target for the treatment of tuberculosis. Based on the functional characteristics of MtMET-AP1, we developed an enzymatic activated near-infrared fluorescent probe DDAN-MT for rapid, highly selective, and real-time monitoring of endogenous MtMET-AP1 activity in M. tuberculosis. Using the probe DDAN-MT, a visually high-throughput screening technique was established, which obtained three potential inhibitors (GSK-J4 hydrochchloride, JX06, and lavendustin C) against MtMET-AP1 from a 2560 compounds library. More importantly, these inhibitors could inhibit the growth of M. tuberculosis H37Ra especially (MICs < 5 μM), with low toxicities on intestinal bacteria strains and human cells. Therefore, the visual sensing of MtMET-AP1 was successfully performed by DDAN-MT, and MtMET-AP1 inhibitors were discovered as potential antituberculosis agents.
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Affiliation(s)
- Ming Zhang
- Second Affiliated Hospital, Dalian Medical University, Dalian 116044, China
- Dalian Key Laboratory of Metabolic Target Characterization and Traditional Chinese Medicine Intervention, College of Integrative Medicine, College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Shengui He
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Xiuyan Han
- Second Affiliated Hospital, Dalian Medical University, Dalian 116044, China
| | - Jingnan Cui
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Honglei Wang
- Dalian Key Laboratory of Metabolic Target Characterization and Traditional Chinese Medicine Intervention, College of Integrative Medicine, College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Xiaokui Huo
- Second Affiliated Hospital, Dalian Medical University, Dalian 116044, China
| | - Fei Yan
- Second Affiliated Hospital, Dalian Medical University, Dalian 116044, China
| | - Lei Feng
- Second Affiliated Hospital, Dalian Medical University, Dalian 116044, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Chao Wang
- Second Affiliated Hospital, Dalian Medical University, Dalian 116044, China
- Dalian Key Laboratory of Metabolic Target Characterization and Traditional Chinese Medicine Intervention, College of Integrative Medicine, College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Xiaochi Ma
- Second Affiliated Hospital, Dalian Medical University, Dalian 116044, China
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
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Smith N, Quan D, Nagalingam G, Triccas JA, Rendina LM, Rutledge PJ. Carborane clusters increase the potency of bis-substituted cyclam derivatives against Mycobacterium tuberculosis. RSC Med Chem 2022; 13:1234-1238. [PMID: 36325397 PMCID: PMC9579921 DOI: 10.1039/d2md00150k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 07/28/2022] [Indexed: 08/04/2023] Open
Abstract
Bis-substituted cyclam derivatives have recently emerged as a promising new class of antibacterial agents, displaying excellent activity against drug-resistant Mycobacterium tuberculosis (Mtb) and in vivo efficacy in a zebrafish assay. Herein we report the synthesis and biological activity of new carborane derivatives within this class of antitubercular compounds. The resulting carborane-cyclam conjugates incorporating either hydrophobic closo-1,2-carborane or anionic, hydrophilic nido-7,8-carborane clusters display promising activity in an antibacterial assay employing the virulent Mtb strain H37Rv. The most active of these carborane derivatives exhibit MIC50 values of <1 μM, making them the most active compounds in this unique class of antibacterial cyclams reported to date.
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Affiliation(s)
- Nicholas Smith
- School of Chemistry, The University of Sydney Sydney NSW 2006 Australia +61 2 9351 5020 +61 2 9351 4781
| | - Diana Quan
- Sydney Institute of Infectious Diseases and Charles Perkins Centre, The University of Sydney Sydney NSW 2006 Australia
- School of Medical Sciences, The University of Sydney Sydney NSW 2006 Australia
| | - Gayathri Nagalingam
- Sydney Institute of Infectious Diseases and Charles Perkins Centre, The University of Sydney Sydney NSW 2006 Australia
- School of Medical Sciences, The University of Sydney Sydney NSW 2006 Australia
| | - James A Triccas
- Sydney Institute of Infectious Diseases and Charles Perkins Centre, The University of Sydney Sydney NSW 2006 Australia
- School of Medical Sciences, The University of Sydney Sydney NSW 2006 Australia
| | - Louis M Rendina
- School of Chemistry, The University of Sydney Sydney NSW 2006 Australia +61 2 9351 5020 +61 2 9351 4781
- The University of Sydney Nano Institute (Sydney Nano), The University of Sydney Sydney NSW 2006 Australia
| | - Peter J Rutledge
- School of Chemistry, The University of Sydney Sydney NSW 2006 Australia +61 2 9351 5020 +61 2 9351 4781
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Chen H, Wang B, Li P, Yan H, Li G, Huang H, Lu Y. The optimization and characterization of functionalized sulfonamides derived from sulfaphenazole against Mycobacterium tuberculosis with reduced CYP 2C9 inhibition. Bioorg Med Chem Lett 2021; 40:127924. [PMID: 33705901 DOI: 10.1016/j.bmcl.2021.127924] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/08/2021] [Accepted: 02/25/2021] [Indexed: 01/02/2023]
Abstract
In this study, a series of sulfonamide compounds was designed and synthesized through the systematic optimization of the antibacterial agent sulfaphenazole for the treatment of Mycobacterium tuberculosis (M. tuberculosis). Preliminary results indicate that the 4-aminobenzenesulfonamide moiety plays a key role in maintaining antimycobacterial activity. Compounds 10c, 10d, 10f and 10i through the optimization on phenyl ring at the R2 site on the pyrazole displayed promising antimycobacterial activity paired with low cytotoxicity. In particular, compound 10d displayed good activity (MIC = 5.69 μg/mL) with low inhibition of CYP 2C9 (IC50 > 10 μM), consequently low potential risk of drug-drug interaction. These promising results provide new insight into the combination regimen using sulfonamide as one component for the treatment of M. tuberculosis.
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Affiliation(s)
- Hui Chen
- Beijing Key Laboratory of Environmental and Viral Oncology, College of Life Science and Bio-engineering, Beijing University of Technology, Beijing 100124, PR China
| | - Bin Wang
- Beijing Key Laboratory of Drug Resistance Tuberculosis Research, Department of Pharmacology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing 101149, PR China
| | - Peng Li
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation & Chinese Academy of Medical Sciences Key Laboratory of Anti-DR TB Innovative Drug Research, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, PR China
| | - Hong Yan
- Beijing Key Laboratory of Environmental and Viral Oncology, College of Life Science and Bio-engineering, Beijing University of Technology, Beijing 100124, PR China
| | - Gang Li
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation & Chinese Academy of Medical Sciences Key Laboratory of Anti-DR TB Innovative Drug Research, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, PR China.
| | - Haihong Huang
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation & Chinese Academy of Medical Sciences Key Laboratory of Anti-DR TB Innovative Drug Research, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100050, PR China.
| | - Yu Lu
- Beijing Key Laboratory of Drug Resistance Tuberculosis Research, Department of Pharmacology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing 101149, PR China.
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Characterization of a toxin-antitoxin system in Mycobacterium tuberculosis suggests neutralization by phosphorylation as the antitoxicity mechanism. Commun Biol 2020; 3:216. [PMID: 32382148 PMCID: PMC7205606 DOI: 10.1038/s42003-020-0941-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 04/10/2020] [Indexed: 01/06/2023] Open
Abstract
Mycobacterium tuberculosis (Mtb) encodes an exceptionally large number of toxin-antitoxin (TA) systems, supporting the hypothesis that TA systems are involved in pathogenesis. We characterized the putative Mtb Rv1044-Rv1045 TA locus structurally and functionally, demonstrating that it constitutes a bona fide TA system but adopts a previously unobserved antitoxicity mechanism involving phosphorylation of the toxin. While Rv1045 encodes the guanylyltransferase TglT functioning as a toxin, Rv1044 encodes the novel atypical serine protein kinase TakA, which specifically phosphorylates the cognate toxin at residue S78, thereby neutralizing its toxicity. In contrast to previous predictions, we found that Rv1044-Rv1045 does not belong to the type IV TA family because TglT and TakA interact with each other as substrate and kinase, suggesting an unusual type of TA system. Protein homology analysis suggests that other COG5340-DUF1814 protein pairs, two highly associated but uncharacterized protein families widespread in prokaryotes, might share this unusual antitoxicity mechanism. Xia Yu et al. report the characterization of a toxin-antitoxin system with an unusual mechanism in Mycobacterium tuberculosis. They find that the antitoxin locus Rv1044 encodes an atypical serine protein kinase that phosphorylates the toxin to neutralize toxicity.
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Singh R, Dwivedi SP, Gaharwar US, Meena R, Rajamani P, Prasad T. Recent updates on drug resistance in Mycobacterium tuberculosis. J Appl Microbiol 2019; 128:1547-1567. [PMID: 31595643 DOI: 10.1111/jam.14478] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 09/09/2019] [Accepted: 09/13/2019] [Indexed: 12/18/2022]
Abstract
Tuberculosis (TB) along with acquired immune deficiency syndrome and malaria rank among the top three fatal infectious diseases which pose threat to global public health, especially in middle and low income countries. TB caused by Mycobacterium tuberculosis (Mtb) is an airborne infectious disease and one-third of the world's population gets infected with TB leading to nearly 1·6 million deaths annually. TB drugs are administered in different combinations of four first-line drugs (rifampicin, isoniazid, pyrazinamide and ethambutol) which form the core of treatment regimens in the initial treatment phase of 6-9 months. Several reasons account for the failure of TB therapy such as (i) late diagnosis, (ii) lack of timely and proper administration of effective drugs, (iii) lower availability of less toxic, inexpensive and effective drugs, (iv) long treatment duration, (v) nonadherence to drug regimen and (vi) evolution of drug-resistant TB strains. Drug-resistant TB poses a significant challenge to TB therapy and control programs. In the background of worldwide emergence of 558 000 new TB cases with resistance to rifampicin in the year 2017 and of them, 82% becoming multidrug-resistant TB (MDR-TB), it is essential to continuously update the knowledge on the mechanisms and molecular basis for evolution of Mtb drug resistance. This narrative and traditional review summarizes the progress on the anti-tubercular agents, their mode of action and drug resistance mechanisms in Mtb. The aim of this review is to provide recent updates on drug resistance mechanisms, newly developed/repurposed anti-TB agents in pipeline and international recommendations to manage MDR-TB. It is based on recent literature and WHO guidelines and aims to facilitate better understanding of drug resistance for effective TB therapy and clinical management.
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Affiliation(s)
- R Singh
- AIRF & Special Centre for Nano Sciences, Jawaharlal Nehru University, New Delhi, India
| | - S P Dwivedi
- IFTM University, Moradabad, Uttar Pradesh, India
| | - U S Gaharwar
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India
| | - R Meena
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India
| | - P Rajamani
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India
| | - T Prasad
- AIRF & Special Centre for Nano Sciences, Jawaharlal Nehru University, New Delhi, India
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Nzungize L, Ali MK, Wang X, Huang X, Yang W, Duan X, Yan S, Li C, Abdalla AE, Jeyakkumar P, Xie J. Mycobacterium tuberculosis metC (Rv3340) derived hydrogen sulphide conferring bacteria stress survival. J Drug Target 2019; 27:1004-1016. [DOI: 10.1080/1061186x.2019.1579820] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Lambert Nzungize
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, China
| | - Md Kaisar Ali
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, China
| | - Xiaoyu Wang
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, China
| | - Xue Huang
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, China
| | - Wenmin Yang
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, China
| | - Xiangke Duan
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, China
| | - Shuangquan Yan
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, China
| | - Chunyan Li
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, China
| | - Abualgasim Elgaili Abdalla
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, China
- Department of Clinical Microbiology, College of Medical Laboratory Sciences, Omdurman, Islamic University, Omdurman, Sudan
| | - Ponmani Jeyakkumar
- Institute of Bioorganic and Medical Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, China
| | - Jianping Xie
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, China
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Thakur Z, Saini V, Arya P, Kumar A, Mehta PK. Computational insights into promoter architecture of toxin-antitoxin systems of Mycobacterium tuberculosis. Gene 2017; 641:161-171. [PMID: 29066303 DOI: 10.1016/j.gene.2017.10.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 09/27/2017] [Accepted: 10/16/2017] [Indexed: 12/16/2022]
Abstract
Toxin-antitoxin (TA) systems are two component genetic modules widespread in many bacterial genomes, including Mycobacterium tuberculosis (Mtb). The TA systems play a significant role in biofilm formation, antibiotic tolerance and persistence of pathogen inside the host cells. Deciphering regulatory motifs of Mtb TA systems is the first essential step to understand their transcriptional regulation. In this study, in silico approaches, that is, the knowledge based motif discovery and de novo motif discovery were used to identify the regulatory motifs of 79 Mtb TA systems. The knowledge based motif discovery approach was used to design a Perl based bio-tool Mtb-sig-miner available at (https://github.com/zoozeal/Mtb-sig-miner), which could successfully detect sigma (σ) factor specific regulatory motifs in the promoter region of Mtb TA modules. The manual curation of Mtb-sig-miner output hits revealed that the majority of them possessed σB regulatory motif in their promoter region. On the other hand, de novo approach resulted in the identification of a novel conserved motif [(T/A)(G/T)NTA(G/C)(C/A)AT(C/A)] within the promoter region of 14 Mtb TA systems. The identified conserved motif was also validated for its activity as conserved core region of operator sequence of corresponding TA system by molecular docking studies. The strong binding of respective antitoxin/toxin with the identified novel conserved motif reflected the validation of identified motif as the core region of operator sequence of respective TA systems. These findings provide computational insight to understand the transcriptional regulation of Mtb TA systems.
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Affiliation(s)
- Zoozeal Thakur
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Vandana Saini
- Toxicology & Computational Biology Group, Centre for Bioinformatics, Maharshi Dayanand University, Rohtak, 124001, Haryana, India
| | - Preeti Arya
- National Agri-Food Biotechnology Institute, Sector 81, S.A.S Nagar, Mohali, Punjab 140306, India
| | - Ajit Kumar
- Toxicology & Computational Biology Group, Centre for Bioinformatics, Maharshi Dayanand University, Rohtak, 124001, Haryana, India.
| | - Promod K Mehta
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, 124001, Haryana, India.
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