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Lin Z, Kaniraj JP, Holzheimer M, Nigou J, Gilleron M, Hekelaar J, Minnaard AJ. Asymmetric Total Synthesis and Structural Revision of DAT 2, an Antigenic Glycolipid from Mycobacterium tuberculosis. Angew Chem Int Ed Engl 2024; 63:e202318582. [PMID: 38456226 DOI: 10.1002/anie.202318582] [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: 12/04/2023] [Revised: 03/04/2024] [Accepted: 03/07/2024] [Indexed: 03/09/2024]
Abstract
DAT2 is a member of the diacyl trehalose family (DAT) of antigenic glycolipids located in the mycomembrane of Mycobacterium tuberculosis (Mtb). Recently it was shown that the molecular structure of DAT2 had been incorrectly assigned, but the correct structure remained elusive. Herein, the correct molecular structure of DAT2 and its methyl-branched acyl substituent mycolipanolic acid is determined. For this, four different stereoisomers of mycolipanolic acid were prepared in a stereoselective and unified manner, and incorporated into DAT2. A rigorous comparison of the four isomers to the DAT isolated from Mtb H37Rv by NMR, HPLC, GC, and mass spectrometry allowed a structural revision of mycolipanolic acid and DAT2. Activation of the macrophage inducible Ca2+-dependent lectin receptor (Mincle) with all four stereoisomers shows that the natural stereochemistry of mycolipanolic acid / DAT2 provides the strongest activation, which indicates its high antigenicity and potential application in serodiagnostics and vaccine adjuvants.
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Affiliation(s)
- Zonghao Lin
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - Jeya Prathap Kaniraj
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - Mira Holzheimer
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - Jérôme Nigou
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, F-31077, Toulouse, France
| | - Martine Gilleron
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, 205 route de Narbonne, F-31077, Toulouse, France
| | - Johan Hekelaar
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - Adriaan J Minnaard
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
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Lu Y, Chen H, Shao Z, Sun L, Li C, Lu Y, You X, Yang X. Deletion of the Mycobacterium tuberculosis cyp138 gene leads to changes in membrane-related lipid composition and antibiotic susceptibility. Front Microbiol 2024; 15:1301204. [PMID: 38591032 PMCID: PMC10999552 DOI: 10.3389/fmicb.2024.1301204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 03/01/2024] [Indexed: 04/10/2024] Open
Abstract
Introduction Mycobacterium tuberculosis (Mtb), the main cause of tuberculosis (TB), has brought a great burden to the world's public health. With the widespread use of Mtb drug-resistant strains, the pressure on anti-TB treatment is increasing. Anti-TB drugs with novel structures and targets are urgently needed. Previous studies have revealed a series of CYPs with important roles in the survival and metabolism of Mtb. However, there is little research on the structure and function of CYP138. Methods In our study, to discover the function and targetability of CYP138, a cyp138-knockout strain was built, and the function of CYP138 was speculated by the comparison between cyp138-knockout and wild-type strains through growth curves, growth status under different carbon sources, infection curves, SEM, MIC tests, quantitative proteomics, and lipidomics. Results and discussion The knockout of cyp138 was proven to affect the Mtb's macrophage infection, antibiotics susceptibility, and the levels of fatty acid metabolism, membrane-related proteins, and lipids such as triacylglycerol. We proposed that CYP138 plays an important role in the synthesis and decomposition of lipids related to the cell membrane structure as a new potential anti-tuberculosis drug target.
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Affiliation(s)
- Yun Lu
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Division for Medicinal Microorganisms-related Strains, CAMS Collection Center of Pathogenic Microorganisms, Beijing, China
| | - Hongtong Chen
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Division for Medicinal Microorganisms-related Strains, CAMS Collection Center of Pathogenic Microorganisms, Beijing, China
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Zhiyuan Shao
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Division for Medicinal Microorganisms-related Strains, CAMS Collection Center of Pathogenic Microorganisms, Beijing, China
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Lang Sun
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Division for Medicinal Microorganisms-related Strains, CAMS Collection Center of Pathogenic Microorganisms, Beijing, China
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Congran Li
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Division for Medicinal Microorganisms-related Strains, CAMS Collection Center of Pathogenic Microorganisms, Beijing, China
| | - Yu Lu
- Beijing Key Laboratory of Drug Resistance Tuberculosis Research, Beijing Tuberculosis and Thoracic Tumor Research Institute, and Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Xuefu You
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Division for Medicinal Microorganisms-related Strains, CAMS Collection Center of Pathogenic Microorganisms, Beijing, China
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xinyi Yang
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Division for Medicinal Microorganisms-related Strains, CAMS Collection Center of Pathogenic Microorganisms, Beijing, China
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Schami A, Islam MN, Belisle JT, Torrelles JB. Drug-resistant strains of Mycobacterium tuberculosis: cell envelope profiles and interactions with the host. Front Cell Infect Microbiol 2023; 13:1274175. [PMID: 38029252 PMCID: PMC10664572 DOI: 10.3389/fcimb.2023.1274175] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 10/02/2023] [Indexed: 12/01/2023] Open
Abstract
In the past few decades, drug-resistant (DR) strains of Mycobacterium tuberculosis (M.tb), the causative agent of tuberculosis (TB), have become increasingly prevalent and pose a threat to worldwide public health. These strains range from multi (MDR) to extensively (XDR) drug-resistant, making them very difficult to treat. Further, the current and future impact of the Coronavirus Disease 2019 (COVID-19) pandemic on the development of DR-TB is still unknown. Although exhaustive studies have been conducted depicting the uniqueness of the M.tb cell envelope, little is known about how its composition changes in relation to drug resistance acquisition. This knowledge is critical to understanding the capacity of DR-M.tb strains to resist anti-TB drugs, and to inform us on the future design of anti-TB drugs to combat these difficult-to-treat strains. In this review, we discuss the complexities of the M.tb cell envelope along with recent studies investigating how M.tb structurally and biochemically changes in relation to drug resistance. Further, we will describe what is currently known about the influence of M.tb drug resistance on infection outcomes, focusing on its impact on fitness, persister-bacteria, and subclinical TB.
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Affiliation(s)
- Alyssa Schami
- Population Health Program, Texas Biomedical Research Institute, San Antonio, TX, United States
- Integrated Biomedical Sciences Program, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
| | - M. Nurul Islam
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO, United States
| | - John T. Belisle
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO, United States
| | - Jordi B. Torrelles
- Population Health Program, Texas Biomedical Research Institute, San Antonio, TX, United States
- International Center for the Advancement of Research & Education, International Center for the Advancement of Research & Education, Texas Biomedical Research Institute, San Antonio, TX, United States
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Yang D, Zhang Y, Sow IS, Liang H, El Manssouri N, Gelbcke M, Dong L, Chen G, Dufrasne F, Fontaine V, Li R. Antimycobacterial Activities of Hydroxamic Acids and Their Iron(II/III), Nickel(II), Copper(II) and Zinc(II) Complexes. Microorganisms 2023; 11:2611. [PMID: 37894269 PMCID: PMC10609363 DOI: 10.3390/microorganisms11102611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/07/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023] Open
Abstract
Hydroxamic acid (HA) derivatives display antibacterial and antifungal activities. HA with various numbers of carbon atoms (C2, C6, C8, C10, C12 and C17), complexed with different metal ions, including Fe(II/III), Ni(II), Cu(II) and Zn(II), were evaluated for their antimycobacterial activities and their anti-biofilm activities. Some derivatives showed antimycobacterial activities, especially in biofilm growth conditions. For example, 20-100 µM of HA10Fe2, HA10FeCl, HA10Fe3, HA10Ni2 or HA10Cu2 inhibited Mycobacterium tuberculosis, Mycobacterium bovis BCG and Mycobacterium marinum biofilm development. HA10Fe2, HA12Fe2 and HA12FeCl could even attack pre-formed Pseudomonas aeruginosa biofilms at higher concentrations (around 300 µM). The phthiocerol dimycocerosate (PDIM)-deficient Mycobacterium tuberculosis H37Ra was more sensitive to the ion complexes of HA compared to other mycobacterial strains. Furthermore, HA10FeCl could increase the susceptibility of Mycobacterium bovis BCG to vancomycin. Proteomic profiles showed that the potential targets of HA10FeCl were mainly related to mycobacterial stress adaptation, involving cell wall lipid biosynthesis, drug resistance and tolerance and siderophore metabolism. This study provides new insights regarding the antimycobacterial activities of HA and their complexes, especially about their potential anti-biofilm activities.
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Affiliation(s)
- Dong Yang
- Clinical Laboratory, Shanxi Provincial People’s Hospital, Affiliated of Shanxi Medical University, Taiyuan 030001, China; (D.Y.)
| | - Yanfang Zhang
- Clinical Laboratory, Shanxi Provincial People’s Hospital, Affiliated of Shanxi Medical University, Taiyuan 030001, China; (D.Y.)
| | - Ibrahima Sory Sow
- Microbiology, Bioorganic and Macromolecular Chemistry Unit, Faculty of Pharmacy, Université Libre de Bruxelles (ULB), Boulevard du Triomphe, 1050 Brussels, Belgium; (I.S.S.); (V.F.)
| | - Hongping Liang
- Clinical Laboratory, Shanxi Provincial People’s Hospital, Affiliated of Shanxi Medical University, Taiyuan 030001, China; (D.Y.)
| | - Naïma El Manssouri
- Microbiology, Bioorganic and Macromolecular Chemistry Unit, Faculty of Pharmacy, Université Libre de Bruxelles (ULB), Boulevard du Triomphe, 1050 Brussels, Belgium; (I.S.S.); (V.F.)
| | - Michel Gelbcke
- Microbiology, Bioorganic and Macromolecular Chemistry Unit, Faculty of Pharmacy, Université Libre de Bruxelles (ULB), Boulevard du Triomphe, 1050 Brussels, Belgium; (I.S.S.); (V.F.)
| | - Lina Dong
- Core Laboratory, Shanxi Provincial People’s Hospital (Fifth Hospital) of Shanxi Medical University, Taiyuan 030012, China
| | - Guangxin Chen
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan 030006, China
| | - François Dufrasne
- Microbiology, Bioorganic and Macromolecular Chemistry Unit, Faculty of Pharmacy, Université Libre de Bruxelles (ULB), Boulevard du Triomphe, 1050 Brussels, Belgium; (I.S.S.); (V.F.)
| | - Véronique Fontaine
- Microbiology, Bioorganic and Macromolecular Chemistry Unit, Faculty of Pharmacy, Université Libre de Bruxelles (ULB), Boulevard du Triomphe, 1050 Brussels, Belgium; (I.S.S.); (V.F.)
| | - Rongshan Li
- Department of Nephrology, Shanxi Kidney Disease Institute, The Affiliated People’s Hospital of Shanxi Medical University, Shanxi Provincial People’s Hospital, Taiyuan 030001, China
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Campo-Pérez V, Guallar-Garrido S, Luquin M, Sánchez-Chardi A, Julián E. The High Plasticity of Nonpathogenic Mycobacterium brumae Induces Rapid Changes in Its Lipid Profile during Pellicle Maturation: The Potential of This Bacterium as a Versatile Cell Factory for Lipid Compounds of Therapeutic Interest. Int J Mol Sci 2022; 23:13609. [PMID: 36362396 PMCID: PMC9655737 DOI: 10.3390/ijms232113609] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/28/2022] [Accepted: 11/03/2022] [Indexed: 09/08/2024] Open
Abstract
The immunomodulatory potential of mycobacteria to be used for therapeutic purposes varies by species and culture conditions and is closely related to mycobacterial lipid composition. Although the lipids present in the mycobacterial cell wall are relevant, lipids are mainly stored in intracellular lipid inclusions (ILIs), which have emerged as a crucial structure in understanding mycobacteria-host interaction. Little is known about ILI ultrastructure, production, and composition in nonpathogenic species. In this study, we compared the lipid profiles of the nonpathogenic immunomodulatory agent Mycobacterium brumae during pellicle maturation under different culture conditions with qualitative and quantitative approaches by using high-resolution imaging and biochemical and composition analyses to understand ILI dynamics. The results showed wax esters, mainly in early stages of development, and acylglycerols in mature ILI composition, revealing changes in dynamics, amount, and morphometry, depending on pellicle maturation and the culture media used. Low-glycerol cultures induced ILIs with lower molecular weights which were smaller in size in comparison with the ILIs produced in glycerol-enriched media. The data also indicate the simple metabolic plasticity of lipid synthesis in M. brumae, as well as its high versatility in generating different lipid profiles. These findings provide an interesting way to enhance the production of key lipid structures via the simple modulation of cell culture conditions.
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Affiliation(s)
- Víctor Campo-Pérez
- Departament de Genètica i de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
- Bacterial Infections and Antimicrobial Therapy Group, Institute for Bioengineering of Catalonia (IBEC), Baldiri Reixac 15-21, 08028 Barcelona, Spain
| | - Sandra Guallar-Garrido
- Departament de Genètica i de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
| | - Marina Luquin
- Departament de Genètica i de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
| | - Alejandro Sánchez-Chardi
- Servei de Microscòpia, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Esther Julián
- Departament de Genètica i de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
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Stevens CM, Babii SO, Pandya AN, Li W, Li Y, Mehla J, Scott R, Hegde P, Prathipati PK, Acharya A, Liu J, Gumbart JC, North J, Jackson M, Zgurskaya HI. Proton transfer activity of the reconstituted Mycobacterium tuberculosis MmpL3 is modulated by substrate mimics and inhibitors. Proc Natl Acad Sci U S A 2022; 119:e2113963119. [PMID: 35858440 PMCID: PMC9335285 DOI: 10.1073/pnas.2113963119] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 06/03/2022] [Indexed: 01/21/2023] Open
Abstract
Transporters belonging to the Resistance-Nodulation-cell Division (RND) superfamily of proteins such as Mycobacterium tuberculosis MmpL3 and its analogs are the focus of intense investigations due to their importance in the physiology of Corynebacterium-Mycobacterium-Nocardia species and antimycobacterial drug discovery. These transporters deliver trehalose monomycolates, the precursors of major lipids of the outer membrane, to the periplasm by a proton motive force-dependent mechanism. In this study, we successfully purified, from native membranes, the full-length and the C-terminal truncated M. tuberculosis MmpL3 and Corynebacterium glutamicum CmpL1 proteins and reconstituted them into proteoliposomes. We also generated a series of substrate mimics and inhibitors specific to these transporters, analyzed their activities in the reconstituted proteoliposomes, and carried out molecular dynamics simulations of the model MmpL3 transporter at different pH. We found that all reconstituted proteins facilitate proton translocation across a phospholipid bilayer, but MmpL3 and CmpL1 differ dramatically in their responses to pH and interactions with substrate mimics and indole-2-carboxamide inhibitors. Our results further suggest that some inhibitors abolish the transport activity of MmpL3 and CmpL1 by inhibition of proton translocation.
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Affiliation(s)
- Casey M. Stevens
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, OK 73019
| | - Svitlana O. Babii
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, OK 73019
| | - Amitkumar N. Pandya
- School of Pharmacy & Health Professions, Department of Pharmacy Sciences, Creighton University, Omaha, NE 68178
| | - Wei Li
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523
| | - Yupeng Li
- College of Chemistry, Jilin University, 130012 Changchun, China
- Tang Aoqing Honors Program in Science, Jilin University, 130012 Changchun, China
- School of Physics, Georgia Institute of Technology, Atlanta, GA 30332
| | - Jitender Mehla
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, OK 73019
| | - Robyn Scott
- School of Pharmacy & Health Professions, Department of Pharmacy Sciences, Creighton University, Omaha, NE 68178
| | - Pooja Hegde
- School of Pharmacy & Health Professions, Department of Pharmacy Sciences, Creighton University, Omaha, NE 68178
| | - Pavan K. Prathipati
- School of Pharmacy & Health Professions, Department of Pharmacy Sciences, Creighton University, Omaha, NE 68178
| | - Atanu Acharya
- School of Physics, Georgia Institute of Technology, Atlanta, GA 30332
| | - Jinchan Liu
- College of Chemistry, Jilin University, 130012 Changchun, China
- Tang Aoqing Honors Program in Science, Jilin University, 130012 Changchun, China
- School of Physics, Georgia Institute of Technology, Atlanta, GA 30332
| | - James C. Gumbart
- School of Physics, Georgia Institute of Technology, Atlanta, GA 30332
| | - Jeffrey North
- School of Pharmacy & Health Professions, Department of Pharmacy Sciences, Creighton University, Omaha, NE 68178
| | - Mary Jackson
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523
| | - Helen I. Zgurskaya
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, OK 73019
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Khan MT, Khan TA, Ahmad I, Muhammad S, Wei DQ. Diversity and novel mutations in membrane transporters of Mycobacterium tuberculosis. Brief Funct Genomics 2022; 22:168-179. [PMID: 35868449 DOI: 10.1093/bfgp/elac018] [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: 04/11/2022] [Revised: 05/29/2022] [Accepted: 06/14/2022] [Indexed: 11/13/2022] Open
Abstract
Mycobacterium tuberculosis (MTB), the causative agent of tuberculosis (TB), encodes a family of membrane proteins belonging to Resistance-Nodulation-Cell Division (RND) permeases also called multidrug resistance pumps. Mycobacterial membrane protein Large (MmpL) transporters represent a subclass of RND transporters known to participate in exporting of lipid components across the cell envelope. These proteins perform an essential role in MTB survival; however, there are no data regarding mutations in MmpL, polyketide synthase (PKS) and acyl-CoA dehydrogenase FadE proteins from Khyber Pakhtunkhwa, Pakistan. This study aimed to screen mutations in transmembrane transporter proteins including MmpL, PKS and Fad through whole-genome sequencing (WGS) in local isolates of Khyber Pakhtunkhwa province, Pakistan. Fourteen samples were collected from TB patients and drug susceptibility testing was performed. However, only three samples were completely sequenced. Moreover, 209 whole-genome sequences of the same geography were also retrieved from NCBI GenBank to analyze the diversity of mutations in MmpL, PKS and Fad proteins. Among the 212 WGS (Accession ID: PRJNA629298, PRJNA629388, and ERR2510337-ERR2510345, ERR2510546-ERR2510645), numerous mutations in Fad (n = 756), PKS (n = 479), and MmpL (n = 306) have been detected. Some novel mutations were also detected in MmpL, PKS and acyl-CoA dehydrogenase Fad. Novel mutations including Asn576Ser in MmpL8, Val943Gly in MmpL9 and Asn145Asp have been detected in MmpL3. The presence of a large number of mutations in the MTB membrane may have functional consequences on proteins. However, further experimental studies are needed to elucidate the variants' effect on MmpL, PKS and FadE functions.
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Affiliation(s)
- Muhammad Tahir Khan
- Institute of Molecular Biology and Biotechnology (IMBB), The University of Lahore, Pakistan
| | - Taj Ali Khan
- Institute of Pathology and Diagnostic Medicine, Khyber Medical University, Phase V, Hayatabad, Peshawar, Khyber Pakhtunkhwa, 26000, Pakistan
| | - Irshad Ahmad
- Department of Molecular Biology and Genetics. Institute of Basic Medical Sciences, Khyber Medical University, Peshawar, Pakistan
| | - Shabbir Muhammad
- Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Dong-Qing Wei
- State Key Laboratory of Microbial Metabolism, Shanghai-Islamabad-Belgrade Joint Innovation Center on Antibacterial Resistances, Joint Laboratory of International Cooperation in Metabolic and Developmental Sciences, Ministry of Education and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200030, P.R. China.,Peng Cheng Laboratory, Vanke Cloud City Phase I Building 8, Xili Street, Nanshan District, Shenzhen, Guangdong, 518055, P.R. China
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Wang P, Yin B, Zhang Z, Mao S, Bao W, Lian W, Fan Y, Hong C, Su Y, Jia C. Foamy macrophages potentially inhibit tuberculous wound healing by inhibiting the TLRs/NF-κB signalling pathway. Wound Repair Regen 2022; 30:376-396. [PMID: 35384137 DOI: 10.1111/wrr.13006] [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: 07/12/2021] [Revised: 01/26/2022] [Accepted: 03/20/2022] [Indexed: 11/29/2022]
Abstract
To characterise the distribution, classification, and quantity of foamy macrophages (FMs) in tuberculous wound tissue and the relationship between FM and delayed healing of tuberculous wounds. Morphological studies were performed to explore the distribution of FM and Mycobacterium tuberculosis (Mtb) in tuberculous wounds, with acute and chronic wounds included for comparison. Phorbol-12-myristate-13-acetate stimulation-differentiated THP-1 cells were treated with Mtb to induce their differentiation into FM with oxidised low-density lipoprotein treatment serving as a control. Relative cytokine levels were determined by quantitative PCR and Western blotting. Varied co-culture combinations of Mtb, THP-1, FM, and fibroblasts were performed, and proliferation, migration, ability to contract collagen gel, and protein levels of the chemokines in the supernatants of the fibroblasts were assessed. The differentially expressed genes in human skin fibroblasts (HSFs) after co-culture with or without FM were identified using microarray. Many FM were found in the tissues of tuberculous wounds. The FM that did not engulf Mtb (NM-FM) were mainly distributed in tissues surrounding tuberculous wounds, whereas the FM that engulfed Mtb (M-FM) were dominantly located within granulomatous tissues. Co-culture experiments showed that, with the Mtb co-culture, the portions of NM-FM in the total FM grew over time. The migration, proliferation, chemokine secretion, and the ability of fibroblasts to contract collagen gel were inhibited when co-cultured with Mtb, FM, or a combination of the two. Further investigation showed that the TLRs/NF-κB signalling pathway is involved in fibroblast function under the stimulation of FM. TLRs and NF-κB agonists could reverse the phenotypic changes in HSFs after co-culture with FM. The tuberculous wound microenvironment composed of Mtb and FM may affect wound healing by inhibiting the functions of fibroblasts. FM potentially inhibit fibroblasts' function by inhibiting the TLRs/NF-κB signalling pathway in tuberculous wounds.
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Affiliation(s)
- Peng Wang
- Department of Burns and Plastic & Wound Repair Surgery, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Bin Yin
- Department of Burns and Plastic & Wound Repair Surgery, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Zexin Zhang
- Department of Burns and Plastic & Wound Repair Surgery, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Shuting Mao
- Department of Burns and Plastic & Wound Repair Surgery, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Wu Bao
- Department of Burns and Plastic & Wound Repair Surgery, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Wenqin Lian
- Department of Burns and Plastic & Wound Repair Surgery, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Yueying Fan
- Department of Burns and Plastic & Wound Repair Surgery, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Chao Hong
- Xiamen Center for Disease Control and Prevention, Xiamen, China
| | - Yingjun Su
- Department of Burns and Plastic Surgery, Plastic Surgery Hospital of Xi'an International Medical Center, Xi'an, China
| | - Chiyu Jia
- Department of Burns and Plastic & Wound Repair Surgery, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
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Ferrell KC, Johansen MD, Triccas JA, Counoupas C. Virulence Mechanisms of Mycobacterium abscessus: Current Knowledge and Implications for Vaccine Design. Front Microbiol 2022; 13:842017. [PMID: 35308378 PMCID: PMC8928063 DOI: 10.3389/fmicb.2022.842017] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 02/08/2022] [Indexed: 12/22/2022] Open
Abstract
Mycobacterium abscessus is a member of the non-tuberculous mycobacteria (NTM) group, responsible for chronic infections in individuals with cystic fibrosis (CF) or those otherwise immunocompromised. While viewed traditionally as an opportunistic pathogen, increasing research into M. abscessus in recent years has highlighted its continued evolution into a true pathogen. This is demonstrated through an extensive collection of virulence factors (VFs) possessed by this organism which facilitate survival within the host, particularly in the harsh environment of the CF lung. These include VFs resembling those of other Mycobacteria, and non-mycobacterial VFs, both of which make a notable contribution in shaping M. abscessus interaction with the host. Mycobacterium abscessus continued acquisition of VFs is cause for concern and highlights the need for novel vaccination strategies to combat this pathogen. An effective M. abscessus vaccine must be suitably designed for target populations (i.e., individuals with CF) and incorporate current knowledge on immune correlates of protection against M. abscessus infection. Vaccination strategies must also build upon lessons learned from ongoing efforts to develop novel vaccines for other pathogens, particularly Mycobacterium tuberculosis (M. tb); decades of research into M. tb has provided insight into unconventional and innovative vaccine approaches that may be applied to M. abscessus. Continued research into M. abscessus pathogenesis will be critical for the future development of safe and effective vaccines and therapeutics to reduce global incidence of this emerging pathogen.
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Affiliation(s)
- Kia C. Ferrell
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, Australia
- Tuberculosis Research Program, Centenary Institute, Sydney, NSW, Australia
- *Correspondence: Kia C. Ferrell,
| | - Matt D. Johansen
- Centre for Inflammation, Centenary Institute, University of Technology, Sydney, NSW, Australia
- Faculty of Science, School of Life Sciences, University of Technology, Sydney, NSW, Australia
| | - James A. Triccas
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, Australia
- Sydney Institute for Infectious Diseases and the Charles Perkins Centre, The University of Sydney, Camperdown, NSW, Australia
| | - Claudio Counoupas
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, Australia
- Tuberculosis Research Program, Centenary Institute, Sydney, NSW, Australia
- Sydney Institute for Infectious Diseases and the Charles Perkins Centre, The University of Sydney, Camperdown, NSW, Australia
- Claudio Counoupas,
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10
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Abekura F, Park J, Lim H, Kim H, Choi H, Lee M, Kim C. Mycobacterium tuberculosis
glycolipoprotein LprG inhibits inflammation through NF‐κB signaling of ERK1/2 and JNK in LPS‐induced murine macrophage cells. J Cell Biochem 2022; 123:772-781. [DOI: 10.1002/jcb.30220] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 12/20/2021] [Accepted: 01/10/2022] [Indexed: 12/18/2022]
Affiliation(s)
- Fukushi Abekura
- Department of Biological Sciences SungKyunKwan University Suwon Kyunggi‐Do Republic of Korea
| | - Junyoung Park
- Department of Biological Sciences SungKyunKwan University Suwon Kyunggi‐Do Republic of Korea
| | - Hakseong Lim
- Department of Biological Sciences SungKyunKwan University Suwon Kyunggi‐Do Republic of Korea
| | - Hee‐Do Kim
- Department of Biological Sciences SungKyunKwan University Suwon Kyunggi‐Do Republic of Korea
| | - Hyunju Choi
- Department of Biological Sciences SungKyunKwan University Suwon Kyunggi‐Do Republic of Korea
| | - Moon‐Jo Lee
- Department of Herb Science Dong‐Eui Institute of Technology Busan Republic of Korea
| | - Cheorl‐Ho Kim
- Department of Biological Sciences SungKyunKwan University Suwon Kyunggi‐Do Republic of Korea
- Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Samsung Medical Center Seoul South Korea
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11
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Perveen S, Sharma R. Screening approaches and therapeutic targets: The two driving wheels of tuberculosis drug discovery. Biochem Pharmacol 2022; 197:114906. [PMID: 34990594 DOI: 10.1016/j.bcp.2021.114906] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 12/28/2021] [Accepted: 12/28/2021] [Indexed: 12/21/2022]
Abstract
Tuberculosis (TB) is an infectious disease, infecting a quarter of world's population. Drug resistant TB further exacerbates the grim scenario of the drying TB drug discovery pipeline. The limited arsenal to fight TB presses the need for thorough efforts for identifying promising hits to combat the disease. The review highlights the efforts in the field of tuberculosis drug discovery, with an emphasis on massive drug screening campaigns for identifying novel hits against Mtb in both industry and academia. As an intracellular pathogen, mycobacteria reside in a complicated intracellular environment with multiple factors at play. Here, we outline various strategies employed in an effort to mimic the intracellular milieu for bringing the screening models closer to the actual settings. The review also focuses on the novel targets and pathways that could aid in target-based drug discovery in TB. The recent high throughput screening efforts resulting in the identification of potent hits against Mtb has been summarized in this article. There is a pressing need for effective screening strategies and approaches employing innovative tools and recent technologies; including nanotechnology, gene-editing tools such as CRISPR-cas system, host-directed bacterial killing and high content screening to augment the TB drug discovery pipeline with safer and shorter drug regimens.
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Affiliation(s)
- Summaya Perveen
- Infectious Diseases Division, CSIR- Indian Institute of Integrative Medicine, Jammu 180001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Rashmi Sharma
- Infectious Diseases Division, CSIR- Indian Institute of Integrative Medicine, Jammu 180001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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12
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Zhang W, Xu L, Zhu L, Liu Y, Yang S, Zhao M. Lipid Droplets, the Central Hub Integrating Cell Metabolism and the Immune System. Front Physiol 2021; 12:746749. [PMID: 34925055 PMCID: PMC8678573 DOI: 10.3389/fphys.2021.746749] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 11/08/2021] [Indexed: 12/16/2022] Open
Abstract
Lipid droplets (LDs) are commonly found in various biological cells and are organelles related to cell metabolism. LDs, the number and size of which are heterogeneous across cell type, are primarily composed of polar lipids and proteins on the surface with neutral lipids in the core. Neutral lipids stored in LDs can be degraded by lipolysis and lipophagocytosis, which are regulated by various proteins. The process of LD formation can be summarized in four steps. In addition to energy production, LDs play an extremely pivotal role in a variety of physiological and pathological processes, such as endoplasmic reticulum stress, lipid toxicity, storage of fat-soluble vitamins, regulation of oxidative stress, and reprogramming of cell metabolism. Interestingly, LDs, the hub of integration between metabolism and the immune system, are involved in antitumor immunity, anti-infective immunity (viruses, bacteria, parasites, etc.) and some metabolic immune diseases. Herein, we summarize the role of LDs in several major immune cells as elucidated in recent years, including T cells, dendritic cells, macrophages, mast cells, and neutrophils. Additionally, we analyze the role of the interaction between LDs and immune cells in two typical metabolic immune diseases: atherosclerosis and Mycobacterium tuberculosis infection.
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Affiliation(s)
- Wei Zhang
- Department of Pediatrics, Third Xiangya Hospital, Central South University, Changsha, China
- Xiangya Hospital, Central South University, Changsha, China
| | - Linyong Xu
- School of Life Sciences, Central South University, Changsha, China
| | - Ling Zhu
- School of Life Sciences, Central South University, Changsha, China
| | - Yifan Liu
- Department of Pediatrics, Third Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Siwei Yang
- Department of Pediatrics, Third Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Mingyi Zhao
- Department of Pediatrics, Third Xiangya Hospital, Central South University, Changsha, China
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13
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Moolla N, Bailo R, Marshall R, Bavro VN, Bhatt A. Structure-function analysis of MmpL7-mediated lipid transport in mycobacteria. Cell Surf 2021; 7:100062. [PMID: 34522829 PMCID: PMC8427324 DOI: 10.1016/j.tcsw.2021.100062] [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: 07/26/2021] [Revised: 08/27/2021] [Accepted: 08/27/2021] [Indexed: 11/30/2022] Open
Abstract
Mycobacterial membrane protein Large (MmpL7) is a Resistance-Nodulation-Division (RND) family transporter required for the export of the virulence lipid, phthiocerol dimycocerosate (PDIM), in Mycobacterium tuberculosis. Using a null mutant of the related, vaccine strain Mycobacterium bovis BCG, we show that MmpL7 is also involved in the transport of the structurally related phenolic glycolipid (PGL), which is also produced by the hypervirulent M. tuberculosis strain HN878, but absent in M. tuberculosis H37Rv. Furthermore, we generated an in silico model of M. tuberculosis MmpL7 that revealed MmpL7 as a functional outlier within the MmpL-family, missing a canonical proton-relay signature sequence, suggesting that it employs a yet-unidentified mechanism for energy coupling for transport. In addition, our analysis demonstrates that the periplasmic porter domain 2 insert (PD2-insert), which doesn't share any recognisable homology, is highly alpha-helical in nature, suggesting an organisation similar to that seen in the hopanoid PD3/4 domains. Using the M. bovis BCG mmpL7 mutant for functional complementation with mutated alleles of mmpL7, we were able to identify residues present in the transmembrane domains TM4 and TM10, and the PD2 domain insert that play a crucial role in PDIM transport, and in certain cases, biosynthesis of PDIM.
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Affiliation(s)
- Nabiela Moolla
- School of Biosciences and Institute of Microbiology and Infection, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Rebeca Bailo
- School of Biosciences and Institute of Microbiology and Infection, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Robert Marshall
- School of Biosciences and Institute of Microbiology and Infection, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Vassiliy N. Bavro
- School of Life Sciences, University of Essex, Colchester CO4 3SQ, UK
| | - Apoorva Bhatt
- School of Biosciences and Institute of Microbiology and Infection, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
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14
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Lewin A, Kamal E, Semmler T, Winter K, Kaiser S, Schäfer H, Mao L, Eschenhagen P, Grehn C, Bender J, Schwarz C. Genetic diversification of persistent Mycobacterium abscessus within cystic fibrosis patients. Virulence 2021; 12:2415-2429. [PMID: 34546836 PMCID: PMC8526041 DOI: 10.1080/21505594.2021.1959808] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Mycobacterium (M.) abscessus infections in Cystic Fibrosis (CF) patients cause a deterioration of lung function. Treatment of these multidrug-resistant pathogens is associated with severe side-effects, while frequently unsuccessful. Insight on M. abscessus genomic evolvement during chronic lung infection would be beneficial for improving treatment strategies. A longitudinal study enrolling 42 CF patients was performed at a CF center in Berlin, Germany, to elaborate phylogeny and genomic diversification of in-patient M. abscessus. Eleven of the 42 CF patients were infected with M. abscessus. Five of these 11 patients were infected with global human-transmissible M. abscessus cluster strains. Phylogenetic analysis of 88 genomes from isolates of the 11 patients excluded occurrence of M. abscessus transmission among members of the study group. Genome sequencing and variant analysis of 30 isolates from 11 serial respiratory samples collected over 4.5 years from a chronically infected patient demonstrated accumulation of gene mutations. In total, 53 genes exhibiting non-synonymous variations were identified. Enrichment analysis emphasized genes involved in synthesis of glycopeptidolipids, genes from the embABC (arabinosyltransferase) operon, betA (glucose-methanol-choline oxidoreductase) and choD (cholesterol oxidase). Genetic diversity evolved in a variety of virulence- and resistance-associated genes. The strategy of M. abscessus populations in chronic lung infection is not clonal expansion of dominant variants, but to sustain simultaneously a wide range of genetic variants facilitating adaptation of the population to changing living conditions in the lung. Genomic diversification during chronic infection requires increased attention when new control strategies against M. abscessus infections are explored.
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Affiliation(s)
- Astrid Lewin
- Unit 16 Mycotic and Parasitic Agents and Mycobacteria, Robert Koch Institute, Berlin, Germany
| | - Elisabeth Kamal
- Unit 16 Mycotic and Parasitic Agents and Mycobacteria, Robert Koch Institute, Berlin, Germany
| | - Torsten Semmler
- Unit NG 1 Microbial Genomics, Robert Koch Institute, Berlin, Germany
| | - Katja Winter
- Unit MF1 Bioinformatics, Robert Koch Institute, Berlin, Germany
| | - Sandra Kaiser
- Unit MF1 Bioinformatics, Robert Koch Institute, Berlin, Germany
| | - Hubert Schäfer
- Unit 16 Mycotic and Parasitic Agents and Mycobacteria, Robert Koch Institute, Berlin, Germany
| | - Lei Mao
- Unit 16 Mycotic and Parasitic Agents and Mycobacteria, Robert Koch Institute, Berlin, Germany.,Unit 31 Infectious Disease Data Science Unit, Robert Koch Institute, Berlin, Germany
| | - Patience Eschenhagen
- Klinikum Westbrandenburg, Campus Potsdam, Cystic Fibrosis Section, Potsdam, Germany.,Pediatric Respiratory Medicine, Immunology and Intensive Care Medicine, Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Claudia Grehn
- Department of Pediatrics, Division of Pulmonology, Immunology and Intensive Care Medicine, Division of Cystic Fibrosis, Charité - Universitätsmedizin, Berlin, Germany
| | - Jennifer Bender
- Unit 13 Nosocomial Pathogens and Antibiotic Resistances, Robert Koch Institute, Wernigerode, Germany.,ECDC Fellowship Programme, Public Health Microbiology Path (EUPHEM), European Centre for Disease Prevention and Control (ECDC), Solna, Sweden
| | - Carsten Schwarz
- Klinikum Westbrandenburg, Campus Potsdam, Cystic Fibrosis Section, Potsdam, Germany.,Pediatric Respiratory Medicine, Immunology and Intensive Care Medicine, Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
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15
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Mohanty H, Pachpute S, Yadav RP. Mechanism of drug resistance in bacteria: efflux pump modulation for designing of new antibiotic enhancers. Folia Microbiol (Praha) 2021; 66:727-739. [PMID: 34431062 DOI: 10.1007/s12223-021-00910-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 08/10/2021] [Indexed: 11/21/2022]
Abstract
Drug resistance has now become a serious concern in the domain of microbial infection. Bacteria are becoming smarter by displaying a variety of mechanisms during drug resistance. It is not only helping bacteria to adapt nicely in adverse environment but it also makes a smart system for better availability of nutritional status for microorganisms. In this domain, pathogenic bacteria are extensively studied and their mechanism for drug resistance is well explored. The common modes in bacterial resistance include degradation of antibiotics by enzymes, antibiotic target modification or inactivation by enzymatic actions, complete replacement of antibiotic targets, quorum sensing (QS) mechanism, and efflux pump-based extrusion of antibiotics. In this review, various mechanisms of drug resistance in bacteria have been highlighted with giving the importance of efflux pumps. This can be explored as a knowledge source for the management of a variety of bacterial infections, related disease and vibrant clue for next-generation drug development.
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Affiliation(s)
- Harshita Mohanty
- MGMIHS OMICS Research Center, MGM Central Research Laboratory, MGM Medical College and Hospital, MGM Institute of Health Sciences, Sector 1, Kamothe, Navi Mumbai-410209, Maharashtra, India.,Department of Molecular Biology, MGM School of Biomedical Sciences, MGM Institute of Health Sciences, Sector 1, Kamothe, Navi Mumbai-410209, Maharashtra, India
| | - Samir Pachpute
- Department of Medical Microbiology, MGM Medical College and Hospital, MGM Institute of Health Sciences, Sector 1, Kamothe, Navi Mumbai-410209, Maharashtra, India
| | - Raman P Yadav
- MGMIHS OMICS Research Center, MGM Central Research Laboratory, MGM Medical College and Hospital, MGM Institute of Health Sciences, Sector 1, Kamothe, Navi Mumbai-410209, Maharashtra, India. .,Department of Molecular Biology, MGM School of Biomedical Sciences, MGM Institute of Health Sciences, Sector 1, Kamothe, Navi Mumbai-410209, Maharashtra, India.
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16
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Borde S, Hegde P, Prathipati P, North J, Kumari D, Chauhan H. Formulation and characterization of ternary amorphous solid dispersions of a highly potent anti-tubercular agent and curcumin. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102564] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Targeting MmpL3 for anti-tuberculosis drug development. Biochem Soc Trans 2021; 48:1463-1472. [PMID: 32662825 PMCID: PMC7458404 DOI: 10.1042/bst20190950] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 06/22/2020] [Accepted: 06/24/2020] [Indexed: 02/07/2023]
Abstract
The unique architecture of the mycobacterial cell envelope plays an important role in Mycobacterium tuberculosis (Mtb) pathogenesis. A critical protein in cell envelope biogenesis in mycobacteria, required for transport of precursors, trehalose monomycolates (TMMs), is the Mycobacterial membrane protein large 3 (MmpL3). Due to its central role in TMM transport, MmpL3 has been an attractive therapeutic target and a key target for several preclinical agents. In 2019, the first crystal structures of the MmpL3 transporter and its complexes with lipids and inhibitors were reported. These structures revealed several unique structural features of MmpL3 and provided invaluable information on the mechanism of TMM transport. This review aims to highlight the recent advances made in the function of MmpL3 and summarises structural findings. The overall goal is to provide a mechanistic perspective of MmpL3-mediated lipid transport and inhibition, and to highlight the prospects for potential antituberculosis therapies.
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18
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Klenotic PA, Moseng MA, Morgan CE, Yu EW. Structural and Functional Diversity of Resistance-Nodulation-Cell Division Transporters. Chem Rev 2021; 121:5378-5416. [PMID: 33211490 PMCID: PMC8119314 DOI: 10.1021/acs.chemrev.0c00621] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Multidrug resistant (MDR) bacteria are a global threat with many common infections becoming increasingly difficult to eliminate. While significant effort has gone into the development of potent biocides, the effectiveness of many first-line antibiotics has been diminished due to adaptive resistance mechanisms. Bacterial membrane proteins belonging to the resistance-nodulation-cell division (RND) superfamily play significant roles in mediating bacterial resistance to antimicrobials. They participate in multidrug efflux and cell wall biogenesis to transform bacterial pathogens into "superbugs" that are resistant even to last resort antibiotics. In this review, we summarize the RND superfamily of efflux transporters with a primary focus on the assembly and function of the inner membrane pumps. These pumps are critical for extrusion of antibiotics from the cell as well as the transport of lipid moieties to the outer membrane to establish membrane rigidity and stability. We analyze recently solved structures of bacterial inner membrane efflux pumps as to how they bind and transport their substrates. Our cumulative data indicate that these RND membrane proteins are able to utilize different oligomerization states to achieve particular activities, including forming MDR pumps and cell wall remodeling machineries, to ensure bacterial survival. This mechanistic insight, combined with simulated docking techniques, allows for the design and optimization of new efflux pump inhibitors to more effectively treat infections that today are difficult or impossible to cure.
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Affiliation(s)
- Philip A. Klenotic
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland OH 44106, USA
| | - Mitchell A. Moseng
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland OH 44106, USA
| | - Christopher E. Morgan
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland OH 44106, USA
| | - Edward W. Yu
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland OH 44106, USA
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19
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Chang DPS, Guan XL. Metabolic Versatility of Mycobacterium tuberculosis during Infection and Dormancy. Metabolites 2021; 11:88. [PMID: 33540752 PMCID: PMC7913082 DOI: 10.3390/metabo11020088] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 01/16/2021] [Accepted: 01/29/2021] [Indexed: 12/18/2022] Open
Abstract
Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis (TB), is a highly successful intracellular pathogen with the ability to withstand harsh conditions and reside long-term within its host. In the dormant and persistent states, the bacterium tunes its metabolism and is able to resist the actions of antibiotics. One of the main strategies Mtb adopts is through its metabolic versatility-it is able to cometabolize a variety of essential nutrients and direct these nutrients simultaneously to multiple metabolic pathways to facilitate the infection of the host. Mtb further undergo extensive remodeling of its metabolic pathways in response to stress and dormancy. In recent years, advancement in systems biology and its applications have contributed substantially to a more coherent view on the intricate metabolic networks of Mtb. With a more refined appreciation of the roles of metabolism in mycobacterial infection and drug resistance, and the success of drugs targeting metabolism, there is growing interest in further development of anti-TB therapies that target metabolism, including lipid metabolism and oxidative phosphorylation. Here, we will review current knowledge revolving around the versatility of Mtb in remodeling its metabolism during infection and dormancy, with a focus on central carbon metabolism and lipid metabolism.
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Affiliation(s)
| | - Xue Li Guan
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921, Singapore;
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20
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Purdy GE, Hsu FF. Complete Characterization of Polyacyltrehaloses from Mycobacterium tuberculosis H37Rv Biofilm Cultures by Multiple-Stage Linear Ion-Trap Mass Spectrometry Reveals a New Tetraacyltrehalose Family. Biochemistry 2021; 60:381-397. [PMID: 33491458 DOI: 10.1021/acs.biochem.0c00956] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Polyacylated trehaloses in Mycobacterium tuberculosis play important roles in pathogenesis and structural roles in the cell envelope, promoting the intracellular survival of the bacterium, and are potential targets for drug development. Herein, we describe a linear ion-trap multiple-stage mass spectrometric approach (LIT MSn) with high-resolution mass spectrometry to the structural characterization of a glycolipid family that includes a 2,3-diacyltrehalose, 2,3,6-triacyltrehalose, 2,3,6,2',4'-petaacyltrehalose, and a novel 2,3,6,2'-tetraacyltrehalose (TetraAT) subfamily isolated from biofilm cultures of M. tuberculosis H37Rv. The LIT MSn spectra (n = 2, 3, or 4) provide structural information to unveil the location of the palmitoyl/stearoyl and one to four multiple methyl-branched fatty acyl substituents attached to the trehalose backbone, leading to the identification of hundreds of glycolipid species with many isomeric structures. We identified a new TetraAT subfamily whose structure has not been previously defined. We also developed a strategy for defining the structures of the multiple methyl-branched fatty acid substituents, leading to the identification of mycosanoic acid, mycolipenic acid, mycolipodienoic acid, mycolipanolic acid, and a new cyclopropyl-containing acid. The observation of the new TetraAT family, and the realization of the structural similarity between the various subfamilies, may have significant implications in the biosynthetic pathways of this glycolipid family.
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Affiliation(s)
- Georgiana E Purdy
- Department of Microbiology and Immunology, Oregon Health & Science University, Portland, Oregon 97239, United States
| | - Fong-Fu Hsu
- Mass Spectrometry Resource, Division of Endocrinology, Diabetes, Metabolism, and Lipid Research, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri 63110, United States
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21
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Kostyuk AI, Panova AS, Kokova AD, Kotova DA, Maltsev DI, Podgorny OV, Belousov VV, Bilan DS. In Vivo Imaging with Genetically Encoded Redox Biosensors. Int J Mol Sci 2020; 21:E8164. [PMID: 33142884 PMCID: PMC7662651 DOI: 10.3390/ijms21218164] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 10/28/2020] [Accepted: 10/29/2020] [Indexed: 12/13/2022] Open
Abstract
Redox reactions are of high fundamental and practical interest since they are involved in both normal physiology and the pathogenesis of various diseases. However, this area of research has always been a relatively problematic field in the context of analytical approaches, mostly because of the unstable nature of the compounds that are measured. Genetically encoded sensors allow for the registration of highly reactive molecules in real-time mode and, therefore, they began a new era in redox biology. Their strongest points manifest most brightly in in vivo experiments and pave the way for the non-invasive investigation of biochemical pathways that proceed in organisms from different systematic groups. In the first part of the review, we briefly describe the redox sensors that were used in vivo as well as summarize the model systems to which they were applied. Next, we thoroughly discuss the biological results obtained in these studies in regard to animals, plants, as well as unicellular eukaryotes and prokaryotes. We hope that this work reflects the amazing power of this technology and can serve as a useful guide for biologists and chemists who work in the field of redox processes.
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Affiliation(s)
- Alexander I. Kostyuk
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 117997 Moscow, Russia; (A.I.K.); (A.S.P.); (A.D.K.); (D.A.K.); (D.I.M.); (O.V.P.); (V.V.B.)
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical University, 117997 Moscow, Russia
| | - Anastasiya S. Panova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 117997 Moscow, Russia; (A.I.K.); (A.S.P.); (A.D.K.); (D.A.K.); (D.I.M.); (O.V.P.); (V.V.B.)
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical University, 117997 Moscow, Russia
| | - Aleksandra D. Kokova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 117997 Moscow, Russia; (A.I.K.); (A.S.P.); (A.D.K.); (D.A.K.); (D.I.M.); (O.V.P.); (V.V.B.)
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical University, 117997 Moscow, Russia
| | - Daria A. Kotova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 117997 Moscow, Russia; (A.I.K.); (A.S.P.); (A.D.K.); (D.A.K.); (D.I.M.); (O.V.P.); (V.V.B.)
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical University, 117997 Moscow, Russia
| | - Dmitry I. Maltsev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 117997 Moscow, Russia; (A.I.K.); (A.S.P.); (A.D.K.); (D.A.K.); (D.I.M.); (O.V.P.); (V.V.B.)
- Federal Center for Cerebrovascular Pathology and Stroke, 117997 Moscow, Russia
| | - Oleg V. Podgorny
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 117997 Moscow, Russia; (A.I.K.); (A.S.P.); (A.D.K.); (D.A.K.); (D.I.M.); (O.V.P.); (V.V.B.)
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical University, 117997 Moscow, Russia
| | - Vsevolod V. Belousov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 117997 Moscow, Russia; (A.I.K.); (A.S.P.); (A.D.K.); (D.A.K.); (D.I.M.); (O.V.P.); (V.V.B.)
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical University, 117997 Moscow, Russia
- Federal Center for Cerebrovascular Pathology and Stroke, 117997 Moscow, Russia
- Institute for Cardiovascular Physiology, Georg August University Göttingen, D-37073 Göttingen, Germany
| | - Dmitry S. Bilan
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 117997 Moscow, Russia; (A.I.K.); (A.S.P.); (A.D.K.); (D.A.K.); (D.I.M.); (O.V.P.); (V.V.B.)
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Pirogov Russian National Research Medical University, 117997 Moscow, Russia
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22
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Wu Z, Wei W, Zhou Y, Guo H, Zhao J, Liao Q, Chen L, Zhang X, Zhou L. Integrated Quantitative Proteomics and Metabolome Profiling Reveal MSMEG_6171 Overexpression Perturbing Lipid Metabolism of Mycobacterium smegmatis Leading to Increased Vancomycin Resistance. Front Microbiol 2020; 11:1572. [PMID: 32793136 PMCID: PMC7393984 DOI: 10.3389/fmicb.2020.01572] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 06/17/2020] [Indexed: 01/29/2023] Open
Abstract
In recent years, the treatment of tuberculosis is once again facing a severe situation because the existing antituberculosis drugs have become weaker and weaker with the emergence of drug-resistant Mycobacterium tuberculosis (Mtb). The studies of cell division and cell cycle-related factors in Mtb are particularly important for the development of new drugs with broad-spectrum effects. Mycobacterium smegmatis (Msm) has been used as a model organism to study the molecular, physiological, and drug-resistant mechanisms of Mtb. Bioinformatics analysis has predicted that MSMEG_6171 is a MinD-like protein of the septum site-determining protein family associated with cell division in Mycobacterium smegmatis. In our study, we use ultrastructural analysis, proteomics, metabolomics, and molecular biology techniques to comprehensively investigate the function of MSMEG_6171. Overexpression of MSMEG_6171 in Msm resulted in elongated cells, suggesting an important role of MSMEG_6171 in regulating cell wall morphology. The MSMEG_6171 overexpression could enhance the bacterial resistance to vancomycin, ethionamide, meropenem, and cefamandole. The MSMEG_6171 overexpression could alter the lipid metabolism of Msm to cause the changes on cellular biofilm property and function, which enhances bacterial resistance to antibiotics targeting cell wall synthesis. MSMEG_6171 could also induce the glyceride and phospholipid alteration in vivo to exhibit the pleiotropic phenotypes and various cellular responses. The results showed that amino acid R249 in MSMEG_6171 was a key site that can affect the level of bacterial drug resistance, suggesting that ATPase activity is required for function.
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Affiliation(s)
- Zhuhua Wu
- Key Laboratory of Translational Medicine of Guangdong, Center for Tuberculosis Control of Guangdong Province, Guangzhou, China
| | - Wenjing Wei
- Key Laboratory of Translational Medicine of Guangdong, Center for Tuberculosis Control of Guangdong Province, Guangzhou, China
| | - Ying Zhou
- School of Stomatology and Medicine, Foshan University, Foshan, China
| | - Huixin Guo
- Key Laboratory of Translational Medicine of Guangdong, Center for Tuberculosis Control of Guangdong Province, Guangzhou, China
| | - Jiao Zhao
- School of Medicine, Jinan University, Guangzhou, China
| | - Qinghua Liao
- Key Laboratory of Translational Medicine of Guangdong, Center for Tuberculosis Control of Guangdong Province, Guangzhou, China
| | - Liang Chen
- Key Laboratory of Translational Medicine of Guangdong, Center for Tuberculosis Control of Guangdong Province, Guangzhou, China
| | - Xiaoli Zhang
- School of Stomatology and Medicine, Foshan University, Foshan, China
| | - Lin Zhou
- Key Laboratory of Translational Medicine of Guangdong, Center for Tuberculosis Control of Guangdong Province, Guangzhou, China
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Ma S, Huang Y, Xie F, Gong Z, Zhang Y, Stojkoska A, Xie J. Transport mechanism of Mycobacterium tuberculosis MmpL/S family proteins and implications in pharmaceutical targeting. Biol Chem 2020; 401:331-348. [DOI: 10.1515/hsz-2019-0326] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 09/06/2019] [Indexed: 12/13/2022]
Abstract
AbstractTuberculosis caused by Mycobacterium tuberculosis remains a serious threat to public health. The M. tuberculosis cell envelope is closely related to its virulence and drug resistance. Mycobacterial membrane large proteins (MmpL) are lipid-transporting proteins of the efflux pump resistance nodulation cell division (RND) superfamily with lipid substrate specificity and non-transport lipid function. Mycobacterial membrane small proteins (MmpS) are small regulatory proteins, and they are also responsible for some virulence-related effects as accessory proteins of MmpL. The MmpL transporters are the candidate targets for the development of anti-tuberculosis drugs. This article summarizes the structure, function, phylogenetics of M. tuberculosis MmpL/S proteins and their roles in host immune response, inhibitors and regulatory system.
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Affiliation(s)
- Shuang Ma
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400700, China
| | - Yu Huang
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400700, China
| | - Fuling Xie
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400700, China
| | - Zhen Gong
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400700, China
| | - Yuan Zhang
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400700, China
| | - Andrea Stojkoska
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400700, China
| | - Jianping Xie
- Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400700, China
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24
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Raynaud C, Daher W, Johansen MD, Roquet-Banères F, Blaise M, Onajole OK, Kozikowski AP, Herrmann JL, Dziadek J, Gobis K, Kremer L. Active Benzimidazole Derivatives Targeting the MmpL3 Transporter in Mycobacterium abscessus. ACS Infect Dis 2020; 6:324-337. [PMID: 31860799 DOI: 10.1021/acsinfecdis.9b00389] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The prevalence of pulmonary infections due to nontuberculous mycobacteria such as Mycobacterium abscessus has been increasing and surpassing tuberculosis (TB) in some industrialized countries. Because of intrinsic resistance to most antibiotics that drastically limits conventional chemotherapeutic treatment options, new anti-M. abscessus therapeutics are urgently needed against this emerging pathogen. Extensive screening of a library of benzimidazole derivatives that were previously shown to be active against Mycobacterium tuberculosis led to the identification of a lead compound exhibiting very potent in vitro activity against a wide panel of M. abscessus clinical strains. Designated EJMCh-6, this compound, a 2-(2-cyclohexylethyl)-5,6-dimethyl-1H-benzo[d]imidazole), also exerted very strong activity against intramacrophage-residing M. abscessus. Moreover, the treatment of infected zebrafish embryos with EJMCh-6 was correlated with significantly increased embryo survival and a decrease in the bacterial burden as compared to those for untreated fish. Insights into the mechanism of action were inferred from the generation of spontaneous benzimidazole-resistant strains and the identification of a large set of missense mutations in MmpL3, the mycolic acid transporter in mycobacteria. Overexpression of the mutated mmpL3 alleles in a susceptible M. abscessus strain was associated with high resistance levels to EJMCh-6 and to other known MmpL3 inhibitors. Mapping the mutations conferring resistance on an MmpL3 three-dimensional homology model defined a potential EJMCh-6-binding cavity. These data emphasize a yet unexploited chemical structure class against M. abscessus with promising translational development for the treatment of M. abscessus lung diseases.
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Affiliation(s)
- Clément Raynaud
- Centre National de la Recherche Scientifique UMR 9004, Institut de Recherche en Infectiologie de Montpellier (IRIM), Université de Montpellier, 1919 route de Mende, 34293 Montpellier, France
| | - Wassim Daher
- Centre National de la Recherche Scientifique UMR 9004, Institut de Recherche en Infectiologie de Montpellier (IRIM), Université de Montpellier, 1919 route de Mende, 34293 Montpellier, France
| | - Matt D. Johansen
- Centre National de la Recherche Scientifique UMR 9004, Institut de Recherche en Infectiologie de Montpellier (IRIM), Université de Montpellier, 1919 route de Mende, 34293 Montpellier, France
| | - Françoise Roquet-Banères
- Centre National de la Recherche Scientifique UMR 9004, Institut de Recherche en Infectiologie de Montpellier (IRIM), Université de Montpellier, 1919 route de Mende, 34293 Montpellier, France
| | - Mickael Blaise
- Centre National de la Recherche Scientifique UMR 9004, Institut de Recherche en Infectiologie de Montpellier (IRIM), Université de Montpellier, 1919 route de Mende, 34293 Montpellier, France
| | - Oluseye K. Onajole
- Department of Biological, Physical and Health Sciences, Roosevelt University, 425 S. Wabash Avenue, Chicago, Illinois 60605, United States
| | - Alan P. Kozikowski
- StarWise Therapeutics LLC, 2020 N. Lincoln Park West, Chicago, Illinois 60614, United States
| | - Jean-Louis Herrmann
- 2I, UVSQ, INSERM UMR1173, Université Paris-Saclay, 2 avenue de la Source de la Bièvre, 78180 Montigny-Le-Bretonneux, France
- APHP, GHU-Paris Saclay, Hôpital Raymond Poincaré, Garches, France
| | - Jaroslaw Dziadek
- Institute for Medical Biology, Polish Academy of Sciences, Lodowa 106, Łódź 93-232, Poland
| | - Katarzyna Gobis
- Department of Organic Chemistry, Medical University of Gdansk, 107 Gen. Hallera Avenue, 80-416 Gdansk, Poland
| | - Laurent Kremer
- Centre National de la Recherche Scientifique UMR 9004, Institut de Recherche en Infectiologie de Montpellier (IRIM), Université de Montpellier, 1919 route de Mende, 34293 Montpellier, France
- INSERM, IRIM, 34293 Montpellier, France
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25
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TbD1 deletion as a driver of the evolutionary success of modern epidemic Mycobacterium tuberculosis lineages. Nat Commun 2020; 11:684. [PMID: 32019932 PMCID: PMC7000671 DOI: 10.1038/s41467-020-14508-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 01/09/2020] [Indexed: 11/29/2022] Open
Abstract
Mycobacterium tuberculosis (Mtb) strains are classified into different phylogenetic lineages (L), three of which (L2/L3/L4) emerged from a common progenitor after the loss of the MmpS6/MmpL6-encoding Mtb-specific deletion 1 region (TbD1). These TbD1-deleted “modern” lineages are responsible for globally-spread tuberculosis epidemics, whereas TbD1-intact “ancestral” lineages tend to be restricted to specific geographical areas, such as South India and South East Asia (L1) or East Africa (L7). By constructing and characterizing a panel of recombinant TbD1-knock-in and knock-out strains and comparison with clinical isolates, here we show that deletion of TbD1 confers to Mtb a significant increase in resistance to oxidative stress and hypoxia, which correlates with enhanced virulence in selected cellular, guinea pig and C3HeB/FeJ mouse infection models, the latter two mirroring in part the development of hypoxic granulomas in human disease progression. Our results suggest that loss of TbD1 at the origin of the L2/L3/L4 Mtb lineages was a key driver for their global epidemic spread and outstanding evolutionary success. Mycobacterium tuberculosis (Mtb) modern strains emerged from a common progenitor after the loss of Mtb-specific deletion 1 region (TbD1). Here, the authors show that deletion of TbD1 correlates with enhanced Mtb virulence in animal models, mirroring the development of hypoxic granulomas in human disease progression.
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26
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Hu YT, Yi WJ, Jiang TT, Tu HH, Wei LL, Shi LY, Liu CM, Chen J, Han YS, Gan L, Li ZB, Huang H, Li JC. Serum proteins TGFBI, PCSK9, and CCL14 are potential biomarkers for different traditional Chinese medicine syndromes of multidrug-resistant tuberculosis. Anat Rec (Hoboken) 2020; 303:2131-2143. [PMID: 31909895 DOI: 10.1002/ar.24353] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 12/10/2019] [Accepted: 12/10/2019] [Indexed: 12/23/2022]
Abstract
Patients with multidrug-resistant tuberculosis (MDR-TB) tend to have a long course of anti-TB treatment and severe side effects. Traditional Chinese Medicine (TCM) has a synergistic effect in attenuation of MDR-TB. However, the lack of objective biological standards to classify and diagnose MDR-TB TCM syndromes could result in less effective TCM treatment. Therefore, in this study, we identified differentially expressed proteins (DEPs) in serum of individuals with MDR-TB TCM syndromes by applying isobaric tags for relative and absolute quantification coupled with two-dimensional liquid chromatography-tandem mass spectrometry (iTRAQ-2DLC-MS/MS) method and bioinformatics analysis. The functional analysis of DEPs was also performed. Additionally, DEPs among three different TCM syndromes of MDR-TB were validated by enzyme-linked immunosorbent assay (ELISA). Finally, a receiver operating characteristic (ROC) curve was performed to estimate the diagnostic ability of DEPs. A total of 71 DEPs were identified in the three different MDR-TB TCM syndrome groups such as the pulmonary Yin deficiency (PYD) syndrome group, the Hyperactivity of Fire due to Yin deficiency (HFYD) syndrome group, and the deficiency of Qi and Yin (DQY) syndrome group. The results showed that the expression level of transforming growth factor-beta-induced protein ig-h3 (TGFBI) was lower in the PYD syndrome group (p = .002), the proprotein convertase subtilisin/kexin type 9 (PCSK9) was overexpressed in the HFYD syndrome group (p < .0001), and the C-C motif chemokine ligand 14 (CCL14) expression level was reduced in the DQY syndrome group (p = .004). Our study demonstrated that serum TGFBI, PCSK9, and CCL14 may serve as potential novel biomarkers for PYD syndrome, HFYD syndrome and DQY syndrome of MDR-TB, respectively. The study provides a biological basis for MDR-TB TCM syndromes classification and can be of great significance for the treatment of different TCM syndromes.
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Affiliation(s)
- Yu-Ting Hu
- Medical Research Center, Yuebei People's Hospital, Shaoguan, China
| | - Wen-Jing Yi
- Medical Research Center, Yuebei People's Hospital, Shaoguan, China
| | - Ting-Ting Jiang
- South China University of Technology School of Medicine, Guangzhou, China
| | - Hui-Hui Tu
- Department of Anatomy and Embryology, Zhejiang University, Hangzhou, China
| | - Li-Liang Wei
- Department of Pneumology, Shaoxing Municipal Hospital, Shaoxing, China
| | - Li-Ying Shi
- Department of Clinical Laboratory, Zhejiang Hospital, Hangzhou, China
| | - Chang-Ming Liu
- Department of Anatomy and Embryology, Zhejiang University, Hangzhou, China
| | - Jing Chen
- Department of Anatomy and Embryology, Zhejiang University, Hangzhou, China
| | - Yu-Shuai Han
- Department of Anatomy and Embryology, Zhejiang University, Hangzhou, China
| | - Lin Gan
- South China University of Technology School of Medicine, Guangzhou, China
| | - Zhi-Bin Li
- Department of Anatomy and Embryology, Zhejiang University, Hangzhou, China
| | - Huai Huang
- Medical Research Center, Yuebei People's Hospital, Shaoguan, China
| | - Ji-Cheng Li
- Medical Research Center, Yuebei People's Hospital, Shaoguan, China.,Department of Anatomy and Embryology, Zhejiang University, Hangzhou, China
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27
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Techniques to Understand Mycobacterial Lipids and Use of Lipid-Based Nanoformulations for Tuberculosis Management. Nanobiomedicine (Rij) 2020. [DOI: 10.1007/978-981-32-9898-9_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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28
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Garcia-Vilanova A, Chan J, Torrelles JB. Underestimated Manipulative Roles of Mycobacterium tuberculosis Cell Envelope Glycolipids During Infection. Front Immunol 2019; 10:2909. [PMID: 31921168 PMCID: PMC6930167 DOI: 10.3389/fimmu.2019.02909] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 11/27/2019] [Indexed: 12/11/2022] Open
Abstract
The Mycobacterium tuberculosis cell envelope has been evolving over time to make the bacterium transmissible and adaptable to the human host. In this context, the M. tuberculosis cell envelope contains a peripheral barrier full of lipids, some of them unique, which confer M. tuberculosis with a unique shield against the different host environments that the bacterium will encounter at the different stages of infection. This lipid barrier is mainly composed of glycolipids that can be characterized by three different subsets: trehalose-containing, mannose-containing, and 6-deoxy-pyranose-containing glycolipids. In this review, we explore the roles of these cell envelope glycolipids in M. tuberculosis virulence and pathogenesis, drug resistance, and further, how these glycolipids may dictate the M. tuberculosis cell envelope evolution from ancient to modern strains. Finally, we address how these M. tuberculosis cell envelope glycolipids are impacted by the host lung alveolar environment, their role in vaccination and masking host immunity, and subsequently the impact of these glycolipids in shaping how M. tuberculosis interacts with host cells, manipulating their immune response to favor the establishment of an infection.
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Affiliation(s)
- Andreu Garcia-Vilanova
- Population Health Program, TB Group, Texas Biomedical Research Institute, San Antonio, TX, United States
| | - John Chan
- Department of Medicine (Infectious Diseases), Albert Einstein College of Medicine & Montefiore Medical Center, Bronx, NY, United States.,Department of Microbiology and Immunology, Albert Einstein College of Medicine & Montefiore Medical Center, Bronx, NY, United States
| | - Jordi B Torrelles
- Population Health Program, TB Group, Texas Biomedical Research Institute, San Antonio, TX, United States
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29
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Zhou L, Li H, Xu Y, Liu W, Zhang X, Gong J, Xu Z, Shi J. Effects of a nonionic surfactant TX-40 on 9α-hydroxyandrost-4-ene-3,17-dione biosynthesis and physiological properties of Mycobacterium sp. LY-1. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.09.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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30
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Dupont C, Chen Y, Xu Z, Roquet-Banères F, Blaise M, Witt AK, Dubar F, Biot C, Guérardel Y, Maurer FP, Chng SS, Kremer L. A piperidinol-containing molecule is active against Mycobacterium tuberculosis by inhibiting the mycolic acid flippase activity of MmpL3. J Biol Chem 2019; 294:17512-17523. [PMID: 31562241 DOI: 10.1074/jbc.ra119.010135] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 09/25/2019] [Indexed: 12/19/2022] Open
Abstract
Mycobacterium tuberculosis, the causative agent of tuberculosis, remains a major human pathogen, and current treatment options to combat this disease are under threat because of the emergence of multidrug-resistant and extensively drug-resistant tuberculosis. High-throughput whole-cell screening of an extensive compound library has recently identified a piperidinol-containing molecule, PIPD1, as a potent lead compound against M. tuberculosis Herein, we show that PIPD1 and related analogs exert in vitro bactericidal activity against the M. tuberculosis strain mc26230 and also against a panel of multidrug-resistant and extensively drug-resistant clinical isolates of M. tuberculosis, suggesting that PIPD1's mode of action differs from those of most first- and second-line anti-tubercular drugs. Selection and DNA sequencing of PIPD1-resistant mycobacterial mutants revealed the presence of single-nucleotide polymorphisms in mmpL3, encoding an inner membrane-associated mycolic acid flippase in M. tuberculosis Results from functional assays with spheroplasts derived from a M. smegmatis strain lacking the endogenous mmpL3 gene but harboring the M. tuberculosis mmpL3 homolog indicated that PIPD1 inhibits the MmpL3-driven translocation of trehalose monomycolate across the inner membrane without altering the proton motive force. Using a predictive structural model of MmpL3 from M. tuberculosis, docking studies revealed a PIPD1-binding cavity recently found to accommodate different inhibitors in M. smegmatis MmpL3. In conclusion, our findings have uncovered bactericidal activity of a new chemical scaffold. Its anti-tubercular activity is mediated by direct inhibition of the flippase activity of MmpL3 rather than by inhibition of the inner membrane proton motive force, significantly advancing our understanding of MmpL3-targeted inhibition in mycobacteria.
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Affiliation(s)
- Christian Dupont
- Centre National de la Recherche Scientifique UMR9004, Institut de Recherche en Infectiologie de Montpellier, Université de Montpellier, 34293 Montpellier, France
| | - Yushu Chen
- Department of Chemistry, National University of Singapore, Singapore 117543
| | - Zhujun Xu
- Department of Chemistry, National University of Singapore, Singapore 117543
| | - Françoise Roquet-Banères
- Centre National de la Recherche Scientifique UMR9004, Institut de Recherche en Infectiologie de Montpellier, Université de Montpellier, 34293 Montpellier, France
| | - Mickaël Blaise
- Centre National de la Recherche Scientifique UMR9004, Institut de Recherche en Infectiologie de Montpellier, Université de Montpellier, 34293 Montpellier, France
| | - Anne-Kathrin Witt
- National Reference Center for Mycobacteria, Research Center Borstel-Leibniz Lung Center, D-23845 Borstel, Germany
| | - Faustine Dubar
- University of Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, 59000 Lille, France
| | - Christophe Biot
- University of Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, 59000 Lille, France
| | - Yann Guérardel
- University of Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, 59000 Lille, France
| | - Florian P Maurer
- National Reference Center for Mycobacteria, Research Center Borstel-Leibniz Lung Center, D-23845 Borstel, Germany
| | - Shu-Sin Chng
- Department of Chemistry, National University of Singapore, Singapore 117543
| | - Laurent Kremer
- Centre National de la Recherche Scientifique UMR9004, Institut de Recherche en Infectiologie de Montpellier, Université de Montpellier, 34293 Montpellier, France .,INSERM, Institut de Recherche en Infectiologie de Montpellier, 34293 Montpellier, France
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31
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Yang D, Vandenbussche G, Vertommen D, Evrard D, Abskharon R, Cavalier JF, Berger G, Canaan S, Khan MS, Zeng S, Wohlkönig A, Prévost M, Soumillion P, Fontaine V. Methyl arachidonyl fluorophosphonate inhibits Mycobacterium tuberculosis thioesterase TesA and globally affects vancomycin susceptibility. FEBS Lett 2019; 594:79-93. [PMID: 31388991 DOI: 10.1002/1873-3468.13555] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 07/18/2019] [Accepted: 07/25/2019] [Indexed: 11/11/2022]
Abstract
Phthiocerol dimycocerosates and phenolic glycolipids (PGL) are considered as major virulence elements of Mycobacterium tuberculosis, in particular because of their involvement in cell wall impermeability and drug resistance. The biosynthesis of these waxy lipids involves multiple enzymes, including thioesterase A (TesA). We observed that purified recombinant M. tuberculosis TesA is able to dimerize in the presence of palmitoyl-CoA and our 3D structure model of TesA with this acyl-CoA suggests hydrophobic interaction requirement for dimerization. Furthermore, we identified that methyl arachidonyl fluorophosphonate, which inhibits TesA by covalently modifying the catalytic serine, also displays a synergistic antimicrobial activity with vancomycin further warranting the development of TesA inhibitors as valuable antituberculous drug candidates.
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Affiliation(s)
- Dong Yang
- Microbiology, Bioorganic and Macromolecular Chemistry Unit, Faculty of Pharmacy, Université Libre de Bruxelles (ULB), Belgium
| | - Guy Vandenbussche
- Laboratory for the Structure and Function of Biological Membranes, Faculty of Sciences, Université Libre de Bruxelles (ULB), Belgium
| | - Didier Vertommen
- de Duve Institute, Université Catholique de Louvain (UCL), Brussels, Belgium
| | - Damien Evrard
- Biochemistry and Genetics of Microorganisms, Louvain Institute of Biomolecular Science and Technology, Université Catholique de Louvain (UCL), Louvain-la-Neuve, Belgium
| | - Romany Abskharon
- National Institute of Oceanography and Fisheries (NIOF), Cairo, Egypt.,VIB-VUB Center for Structural Biology, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | | | - Gilles Berger
- Microbiology, Bioorganic and Macromolecular Chemistry Unit, Faculty of Pharmacy, Université Libre de Bruxelles (ULB), Belgium
| | | | - Mohammad Shahneawz Khan
- Biochemistry and Genetics of Microorganisms, Louvain Institute of Biomolecular Science and Technology, Université Catholique de Louvain (UCL), Louvain-la-Neuve, Belgium
| | - Sheng Zeng
- Microbiology, Bioorganic and Macromolecular Chemistry Unit, Faculty of Pharmacy, Université Libre de Bruxelles (ULB), Belgium
| | - Alexandre Wohlkönig
- VIB-VUB Center for Structural Biology, Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Martine Prévost
- Laboratory for the Structure and Function of Biological Membranes, Faculty of Sciences, Université Libre de Bruxelles (ULB), Belgium
| | - Patrice Soumillion
- Biochemistry and Genetics of Microorganisms, Louvain Institute of Biomolecular Science and Technology, Université Catholique de Louvain (UCL), Louvain-la-Neuve, Belgium
| | - Véronique Fontaine
- Microbiology, Bioorganic and Macromolecular Chemistry Unit, Faculty of Pharmacy, Université Libre de Bruxelles (ULB), Belgium
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Sharma S, Hameed S, Fatima Z. Monoterpenoid Geraniol Improves Anti-mycobacterial Drug Efficiency by Interfering with Lipidome and Virulence of Mycobacteria. Infect Disord Drug Targets 2019; 20:467-485. [PMID: 31241021 DOI: 10.2174/1871526519666190625113203] [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: 02/07/2019] [Revised: 05/27/2019] [Accepted: 05/29/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Tuberculosis (TB) remains a global infectious disorder for which efficient therapeutics are elusive. Nature is a source of novel pharmacologically active compounds with many potential drugs being derived directly or indirectly from plants, microorganisms and marine organisms. OBJECTIVE The present study aimed to elucidate the antimycobacterial potential of Geraniol (Ger), monoterpene alcohol, against Mycobacterium smegmatis. METHODS Disrupted membrane integrity was studied by membrane permeability assay and PI uptake. Cell surface phenotypes were studied by colony morphology, sliding motility and cell sedimentation rate. Lipidome profile was demonstrated by thin-layer chromatography and liquid chromatography-electrospray ionization mass spectrometry. Amendment in iron homeostasis was assessed by using iron chelator ferrozine and ferroxidase assay while genotoxicity was estimated with EtBr and DAPI staining. Biofilm formation was measured by staining, dry mass and metabolic activity using crystal violet. Cell adherence was examined microscopically and spectrophotometrically. RESULTS We found the antimycobacterial activity of Ger to be 500 μg/ml against M. smegmatis. Underlying mechanisms revealed impaired cell surface phenotypes. Lipidomics analysis exposed profound decrement of mycolic acids, phosphatidylinositol mannosides and triacylglycerides which are crucial for MTB pathogenicity. We further explored that Ger impairs iron homeostasis and leads to genotoxic stress. Moreover, Ger inhibited the potential virulence attributes such as biofilm formation and cell adherence to both polystyrene surface and epithelial cells. Finally, we have validated all the disrupted phenotypes by RT-PCR which showed good correlation with the biochemical assays. CONCLUSION Taken together, the current study demonstrates the antimycobacterial mechanisms of Ger, which may be exploited as an effective candidate of pharmacological interest.
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Affiliation(s)
- Sharda Sharma
- Amity Institute of Biotechnology, Amity University Haryana, Gurgugram (Manesar)-122413, India
| | - Saif Hameed
- Amity Institute of Biotechnology, Amity University Haryana, Gurgugram (Manesar)-122413, India
| | - Zeeshan Fatima
- Amity Institute of Biotechnology, Amity University Haryana, Gurgugram (Manesar)-122413, India
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Multiple-stage Precursor Ion Separation and High Resolution Mass Spectrometry toward Structural Characterization of 2,3-Diacyltrehalose Family from Mycobacterium tuberculosis. SEPARATIONS 2019. [DOI: 10.3390/separations6010004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Mass spectrometry (MS)-based precursor ion isolation, collision-induced dissociation (CID) fragmentation, and detection using linear ion-trap multiple-stage mass spectrometry (LIT MSn) in combination with high resolution mass spectrometry (HRMS) provides a unique tool for structural characterization of complex mixture without chromatographic separation. This approach permits not only separation of various lipid families and their subfamilies, but also stereoisomers, thereby, revealing the structural details. In this report, we describe the LIT MSn approach to unveil the structures of a 2,3-diacyl trehalose (DAT) family isolated from the cell envelope of Mycobacterium tuberculosis, in which more than 30 molecular species, and each species consisting of up to six isomeric structures were found. LIT MSn performed on both [M + Na]+ and [M + HCO2]− ions of DAT yield complimentary structural information for near complete characterization of the molecules, including the location of the fatty acyl substituents on the trehalose backbone. This latter information is based on the findings of the differential losses of the two fatty acyl chains in the MS2 and MS3 spectra; while the product ion spectra from higher stage LIT MSn permit confirmation of the structural assignment.
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Beteck RM, Seldon R, Jordaan A, Warner DF, Hoppe HC, Laming D, Legoabe LJ, Khanye SD. Quinolone-isoniazid hybrids: synthesis and preliminary in vitro cytotoxicity and anti-tuberculosis evaluation. MEDCHEMCOMM 2019; 10:326-331. [PMID: 30881619 DOI: 10.1039/c8md00480c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 12/17/2018] [Indexed: 12/14/2022]
Abstract
Herein, we propose novel quinolones incorporating an INH moiety as potential drug templates against TB. The quinolone-based compounds bearing an INH moiety attached via a hydrazide-hydrazone bond were synthesised and evaluated against Mycobacterium tuberculosis H37Rv (MTB). The compounds were also evaluated for cytotoxicity against HeLa cell lines. These compounds showed significant activity (MIC90) against MTB in the range of 0.2-8 μM without any cytotoxic effects. Compounds 10 (MIC90; 0.9 μM), 11 (MIC90; 0.2 μM), 12 (MIC90; 0.8 μM) and compound 15 (MIC90; 0.8 μM), the most active compounds in this series, demonstrate activities on par with INH and superior to those reported for the fluoroquinolones. The SAR analysis suggests that the nature of substituents at positions -1 and -3 of the quinolone nucleus influences anti-MTB activity. Aqueous solubility evaluation and in vitro metabolic stability of compound 12 highlights favourable drug-like properties for this compound class.
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Affiliation(s)
- Richard M Beteck
- Faculty of Science , Department of Chemistry , Rhodes University , Grahamstown 6140 , South Africa .
| | - Ronnett Seldon
- Drug Discovery and Development Centre (H3-D) , Department of Chemistry , University of Cape Town , Rondebosch 7701 , South Africa
| | - Audrey Jordaan
- SAMRC/NHLS/UCT Molecular Mycobacteriology Research Unit , Department of Pathology , University of Cape Town , Observatory , 7925 , South Africa
| | - Digby F Warner
- SAMRC/NHLS/UCT Molecular Mycobacteriology Research Unit , Department of Pathology , University of Cape Town , Observatory , 7925 , South Africa.,Institute of Infectious Diseases and Molecular Medicine , University of Cape Town , Observatory , 7952 , South Africa.,Wellcome Centre for Clinical Infectious Diseases Research in Africa , University of Cape Town , Observatory , 7925 , South Africa
| | - Heinrich C Hoppe
- Faculty of Science , Department of Biochemistry and Microbiology , Rhodes University , Grahamstown 6140 , South Africa.,Centre for Chemico- and Biomedicinal Research , Rhodes University , Grahamstown 6140 , South Africa
| | - Dustin Laming
- Centre for Chemico- and Biomedicinal Research , Rhodes University , Grahamstown 6140 , South Africa
| | - Lesetja J Legoabe
- Centre of Excellence for Pharmaceutical Science , North-West University , Potchefstroom 2520 , South Africa
| | - Setshaba D Khanye
- Faculty of Science , Department of Chemistry , Rhodes University , Grahamstown 6140 , South Africa . .,Centre for Chemico- and Biomedicinal Research , Rhodes University , Grahamstown 6140 , South Africa.,Faculty of Pharmacy , Rhodes University , Grahamstown 6140 , South Africa
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Ufimtseva EG, Eremeeva NI, Petrunina EM, Umpeleva TV, Bayborodin SI, Vakhrusheva DV, Skornyakov SN. Mycobacterium tuberculosis cording in alveolar macrophages of patients with pulmonary tuberculosis is likely associated with increased mycobacterial virulence. Tuberculosis (Edinb) 2018; 112:1-10. [PMID: 30205961 DOI: 10.1016/j.tube.2018.07.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 04/03/2018] [Accepted: 07/02/2018] [Indexed: 02/07/2023]
Abstract
Mycobacterium tuberculosis (Mtb) is an infectious agent that causes tuberculosis (TB) in humans. A study of the volume of Mtb population and the detection of Mtb virulence in the lungs of patients with pulmonary TB are of great importance for understanding the infectious process and the outcome of the disease. We analyzed the functional state of Mtb and their number in alveolar macrophages obtained from the resected lungs of patients with TB in ex vivo culture and determined that the number of Mtb, referred mainly to the Beijing genotype family (A0 and B0/W148 clusters), were significantly different in cells between different patients. Only single Mtb were found in alveolar macrophages of some patients, while Mtb were actively replicated in colonies in alveolar macrophages of other patients, including cord morphology of Mtb growth (the indicator of Mtb virulence). Our data demonstrated association between the formation of Mtb cording in alveolar macrophages of patients and increased virulence of Mtb from the lungs of these patients in guinea pig TB model. The find of cording formation by replicating Mtb in human alveolar macrophages may be used for preliminary quick estimation of increased Mtb virulence in individual patients with pulmonary TB.
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Affiliation(s)
- Elena G Ufimtseva
- The Research Institute of Biochemistry, Federal Research Center of Fundamental and Translation Medicine, 2 Timakova Street, 630117, Novosibirsk, Russia; Ural Research Institute for Phthisiopulmonology, National Medical Research Center of Tuberculosis and Infectious Diseases of Ministry of Health of the Russian Federation, 50 XXII Partsyezda, 620039, Yekaterinburg, Russia.
| | - Natalya I Eremeeva
- Ural Research Institute for Phthisiopulmonology, National Medical Research Center of Tuberculosis and Infectious Diseases of Ministry of Health of the Russian Federation, 50 XXII Partsyezda, 620039, Yekaterinburg, Russia.
| | - Ekaterina M Petrunina
- Ural Research Institute for Phthisiopulmonology, National Medical Research Center of Tuberculosis and Infectious Diseases of Ministry of Health of the Russian Federation, 50 XXII Partsyezda, 620039, Yekaterinburg, Russia.
| | - Tatiana V Umpeleva
- Ural Research Institute for Phthisiopulmonology, National Medical Research Center of Tuberculosis and Infectious Diseases of Ministry of Health of the Russian Federation, 50 XXII Partsyezda, 620039, Yekaterinburg, Russia.
| | - Sergey I Bayborodin
- The Federal Research Center Institute of Cytology and Genetics, 10 Lavrentyeva Prospect, 630090, Novosibirsk, Russia.
| | - Diana V Vakhrusheva
- Ural Research Institute for Phthisiopulmonology, National Medical Research Center of Tuberculosis and Infectious Diseases of Ministry of Health of the Russian Federation, 50 XXII Partsyezda, 620039, Yekaterinburg, Russia.
| | - Sergey N Skornyakov
- Ural Research Institute for Phthisiopulmonology, National Medical Research Center of Tuberculosis and Infectious Diseases of Ministry of Health of the Russian Federation, 50 XXII Partsyezda, 620039, Yekaterinburg, Russia.
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Singh P, Rameshwaram NR, Ghosh S, Mukhopadhyay S. Cell envelope lipids in the pathophysiology of Mycobacterium tuberculosis. Future Microbiol 2018; 13:689-710. [PMID: 29771143 DOI: 10.2217/fmb-2017-0135] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Mycobacterium tuberculosis is an intracellular bacterium that persists and replicates inside macrophages. The bacterium possesses an unusual lipid-rich cell envelope that provides a hydrophobic impermeable barrier against many environmental stressors and allows it to survive extremely hostile intracellular surroundings. Since the lipid-rich envelope is crucial for M. tuberculosis virulence, the components of the cell wall lipid biogenesis pathways constitute an attractive target for the development of vaccines and antimycobacterial chemotherapeutics. In this review, we provide a detailed description of the mycobacterial cell envelope lipid components and their contributions to the physiology and pathogenicity of mycobacteria. We also discussed the current status of the antimycobacterial drugs that target biosynthesis, export and regulation of cell envelope lipids.
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Affiliation(s)
- Parul Singh
- Laboratory of Molecular Cell Biology, Centre for DNA Fingerprinting & Diagnostics (CDFD), Inner Ring Road, Uppal, Hyderabad, 500 039, India.,Graduate Studies, Manipal Academy of Higher Education, Manipal, Karnataka, 576 104, India
| | - Nagender Rao Rameshwaram
- Laboratory of Molecular Cell Biology, Centre for DNA Fingerprinting & Diagnostics (CDFD), Inner Ring Road, Uppal, Hyderabad, 500 039, India
| | - Sudip Ghosh
- Molecular Biology Division, National Institute of Nutrition (ICMR), Jamai-Osmania PO, Hyderabad, 500 007, India
| | - Sangita Mukhopadhyay
- Laboratory of Molecular Cell Biology, Centre for DNA Fingerprinting & Diagnostics (CDFD), Inner Ring Road, Uppal, Hyderabad, 500 039, India
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Aguilar-Ayala DA, Tilleman L, Van Nieuwerburgh F, Deforce D, Palomino JC, Vandamme P, Gonzalez-Y-Merchand JA, Martin A. The transcriptome of Mycobacterium tuberculosis in a lipid-rich dormancy model through RNAseq analysis. Sci Rep 2017; 7:17665. [PMID: 29247215 PMCID: PMC5732278 DOI: 10.1038/s41598-017-17751-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 11/29/2017] [Indexed: 12/23/2022] Open
Abstract
Tuberculosis (TB) is currently the number one killer among infectious diseases worldwide. Lipids are abundant molecules during the infectious cycle of Mycobacterium tuberculosis (Mtb) and studies better mimicking its actual metabolic state during pathogenesis are needed. Though most studies have focused on the mycobacterial lipid metabolism under standard culture conditions, little is known about the transcriptome of Mtb in a lipid environment. Here we determined the transcriptome of Mtb H37Rv in a lipid-rich environment (cholesterol and fatty acid) under aerobic and hypoxic conditions, using RNAseq. Lipids significantly induced the expression of 368 genes. A main core lipid response was observed involving efflux systems, iron caption and sulfur reduction. In co-expression with ncRNAs and other genes discussed below, may act coordinately to prepare the machinery conferring drug tolerance and increasing a persistent population. Our findings could be useful to tag relevant pathways for the development of new drugs, vaccines and new strategies to control TB.
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Affiliation(s)
- Diana A Aguilar-Ayala
- Laboratory of Microbiology, Faculty of Science, Ghent University, Gent, Belgium.
- Laboratory of Molecular Microbiology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico.
| | - Laurentijn Tilleman
- Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences, Ghent University, Gent, Belgium
| | - Filip Van Nieuwerburgh
- Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences, Ghent University, Gent, Belgium
| | - Dieter Deforce
- Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences, Ghent University, Gent, Belgium
| | | | - Peter Vandamme
- Laboratory of Microbiology, Faculty of Science, Ghent University, Gent, Belgium
| | - Jorge A Gonzalez-Y-Merchand
- Laboratory of Molecular Microbiology, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Anandi Martin
- Laboratory of Microbiology, Faculty of Science, Ghent University, Gent, Belgium
- Pôle of Medical Microbiology, Institute of Experimental and Clinical Research, Université Catholique de, Louvain, Brussels, Belgium
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Briffotaux J, Huang W, Wang X, Gicquel B. MmpS5/MmpL5 as an efflux pump in Mycobacterium species. Tuberculosis (Edinb) 2017; 107:13-19. [DOI: 10.1016/j.tube.2017.08.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 07/31/2017] [Accepted: 08/03/2017] [Indexed: 10/19/2022]
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The mycobacterial Rv1551 glycerol-3-phosphate acyltransferase enhances phospholipid biosynthesis in cell lysates of Escherichia coli. Microb Pathog 2017; 113:269-275. [DOI: 10.1016/j.micpath.2017.10.050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 09/27/2017] [Accepted: 10/26/2017] [Indexed: 01/03/2023]
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40
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Huang W, Briffotaux J, Wang X, Liu L, Hao P, Cimino M, Buchieri MV, Namouchi A, Ainsa JA, Gicquel B. Ionophore A23187 shows anti-tuberculosis activity and synergy with tebipenem. Tuberculosis (Edinb) 2017; 107:111-118. [PMID: 29050757 DOI: 10.1016/j.tube.2017.09.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 08/25/2017] [Accepted: 09/03/2017] [Indexed: 01/13/2023]
Abstract
The objective of this study was to find molecules with anti-mycobacterial activity from a natural compounds library, investigate their mechanisms of resistance, and assess their synergy with antibiotics. We screened a library of 2582 natural compounds with Mycobacterium aurum with the aim of identifying molecules with anti-mycobacterial activity. The hits with the lowest MICs in M. aurum were also tested for their antimicrobial activity in other mycobacterial species including M. tuberculosis complex strains. The chequerboard titration assay was chosen for determining drug interactions in vitro. Spontaneous resistant mutants were isolated and their whole genome sequences compared to wild type and resistant mutants to identify resistance mechanisms. We found that ionophores show anti-mycobacterial activity in vitro. Resistance mechanism to ionophores is mediated by the MmpL5-MmpS5 transporter overexpression. Ionophore A23187 enhanced beta-lactam activity in M. tuberculosis infected macrophage. It will help in the investigation of new drug combinations against bacterial infections including tuberculosis.
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Affiliation(s)
- Wei Huang
- Emerging Bacterial Pathogens Unit, CAS Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China; Mycobacterial Genetics Unit, Institut Pasteur, Paris, France.
| | - Julien Briffotaux
- Emerging Bacterial Pathogens Unit, CAS Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Xinwei Wang
- Emerging Bacterial Pathogens Unit, CAS Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Lili Liu
- Emerging Bacterial Pathogens Unit, CAS Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Pei Hao
- Emerging Bacterial Pathogens Unit, CAS Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Mena Cimino
- Mycobacterial Genetics Unit, Institut Pasteur, Paris, France
| | | | - Amine Namouchi
- Mycobacterial Genetics Unit, Institut Pasteur, Paris, France
| | - Jose-Antonio Ainsa
- Department of Microbiology, and BIFI, University of Zaragoza, Zaragoza, Spain; CIBERES, Instituto de Salud Carlos III, Spain
| | - Brigitte Gicquel
- Emerging Bacterial Pathogens Unit, CAS Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China; Mycobacterial Genetics Unit, Institut Pasteur, Paris, France
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Shin HJ, Franco LH, Nair VR, Collins AC, Shiloh MU. A baculovirus-conjugated mimotope vaccine targeting Mycobacterium tuberculosis lipoarabinomannan. PLoS One 2017; 12:e0185945. [PMID: 28982200 PMCID: PMC5628901 DOI: 10.1371/journal.pone.0185945] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 09/21/2017] [Indexed: 12/15/2022] Open
Abstract
Mycobacterium tuberculosis, the causative agent of tuberculosis, is a major cause of morbidity and mortality worldwide. However, an effective vaccine for M. tuberculosis is lacking. We panned a phage display library using monoclonal antibodies against M. tuberculosis liporabinomannan (LAM), an important component of the M. tuberculosis cell wall, and identified two peptide sequences, HSFKWLDSPRLR or SGVYKVAYDWQH, with high antibody affinity after multiple rounds of panning. Only the HSFKWLDSPRLR peptide induced an anti-LAM response when conjugated to either keyhole limpet hemocyanin (KLH) or to the baculovirus Autographa californica multicapsid nucleopolyherovirus (AcMNPV) when introduced into mice by injection or via intranasal inoculation, respectively. Vaccination with AcMNPV conjugated HSFKWLDSPRLR peptide delayed mortality in a mouse model of tuberculosis. Thus, we report a proof of principle M. tuberculosis vaccination strategy combining an anti-LAM mimotope with a baculovirus delivery system.
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Affiliation(s)
- Hyun-Jin Shin
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, United States of America
| | - Luis H. Franco
- Center for Autophagy Research, University of Texas Southwestern Medical Center, Dallas, TX, United States of America
| | - Vidhya R. Nair
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, United States of America
- Department of Microbiology, University of Texas Southwestern Medical Center, Dallas, TX, United States of America
| | - Angela C. Collins
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, United States of America
| | - Michael U. Shiloh
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, United States of America
- Department of Microbiology, University of Texas Southwestern Medical Center, Dallas, TX, United States of America
- * E-mail:
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Pal R, Hameed S, Kumar P, Singh S, Fatima Z. Comparative lipidomics of drug sensitive and resistant Mycobacterium tuberculosis reveals altered lipid imprints. 3 Biotech 2017; 7:325. [PMID: 28955622 PMCID: PMC5602786 DOI: 10.1007/s13205-017-0972-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 09/11/2017] [Indexed: 02/07/2023] Open
Abstract
Lipids are most adaptable molecules that acclimatize to the development of multidrug resistance (MDR). The precise molecular mechanism of this acclimatization achieved in Mycobacterium tuberculosis (MTB) remains elusive. Although lipids of MTB have been characterized to some details, a comparable resource does not exist between drug sensitive (DS) and resistant (DR) strains of MTB. Here, by employing high-throughput mass spectrometry-based lipidomic approach, we attempted to analyze the differential lipidome profile of DS and DR MTB clinical isolates. We analyzed three major classes of lipids viz fatty acyls, glycerophospholipids and glycerolipids and their respective subclasses. Notably, we observed differential fatty acyls and glycerophospholipids as evident from increased mycolic acids phosphatidylinositol mannosides, phosphatidylinositol, cardiolipin and triacylglycerides abundance, respectively, which are crucial for MTB virulence and pathogenicity. Considering the fact that 30% of the MTB genome codes for lipid, this comprehensive lipidomic approach unravels extensive lipid alterations in DS and DR that will serve as a resource for identifying biomarkers aimed at disrupting the functions of MTB lipids responsible for MDR acquisition in MTB.
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Affiliation(s)
- Rahul Pal
- Amity Institute of Biotechnology, Amity University Haryana, Manesar, Gurugram, 122413 India
| | - Saif Hameed
- Amity Institute of Biotechnology, Amity University Haryana, Manesar, Gurugram, 122413 India
| | - Parveen Kumar
- Division of Clinical Microbiology and Molecular Medicine, Department of Laboratory Medicine, All India Institute of Medical Sciences, New Delhi, 110029 India
| | - Sarman Singh
- Division of Clinical Microbiology and Molecular Medicine, Department of Laboratory Medicine, All India Institute of Medical Sciences, New Delhi, 110029 India
| | - Zeeshan Fatima
- Amity Institute of Biotechnology, Amity University Haryana, Manesar, Gurugram, 122413 India
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Sandhu P, Akhter Y. Evolution of structural fitness and multifunctional aspects of mycobacterial RND family transporters. Arch Microbiol 2017; 200:19-31. [PMID: 28951954 DOI: 10.1007/s00203-017-1434-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 09/07/2017] [Accepted: 09/20/2017] [Indexed: 12/11/2022]
Abstract
Drug resistance is a major concern due to the evolution and emergence of pathogenic bacterial strains with novel strategies to resist the antibiotics in use. Mycobacterium tuberculosis (Mtb) is one of such pathogens with reported strains, which are not treatable with any of the available anti-TB drugs. This scenario has led to the need to look for some novel drug targets in Mtb, which may be exploited to design effective treatment strategies against the infection. The goal of this review is to discuss one such class of emerging drug targets in Mtb. MmpL (mycobacterial membrane protein large) proteins from Mtb are reported to be involved in multi-substrate transport including drug efflux and considered as one of the contributing factors for the emergence of multidrug-resistant strains. MmpL proteins belong to resistance nodulation division permeases superfamily of membrane transporters, which are viably and pathogenetically important and their inhibition could be lethal for the bacteria.
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Affiliation(s)
- Padmani Sandhu
- Structural Bioinformatics Group, Centre for Computational Biology and Bioinformatics, School of Life Sciences, Central University of Himachal Pradesh, Shahpur District, Kangra, Himachal Pradesh, 176206, India
| | - Yusuf Akhter
- Structural Bioinformatics Group, Centre for Computational Biology and Bioinformatics, School of Life Sciences, Central University of Himachal Pradesh, Shahpur District, Kangra, Himachal Pradesh, 176206, India.
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Sesamol exhibits potent antimycobacterial activity: Underlying mechanisms and impact on virulence traits. J Glob Antimicrob Resist 2017; 10:228-237. [DOI: 10.1016/j.jgar.2017.06.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 05/31/2017] [Accepted: 06/12/2017] [Indexed: 12/18/2022] Open
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Kim N, Jang Y, Kim JK, Ryoo S, Kwon KH, Kim M, Kang SS, Byeon HS, Lee HS, Lim YH, Kim JM. Molecular and genomic features of Mycobacterium bovis strain 1595 isolated from Korean cattle. J Vet Sci 2017; 18:333-341. [PMID: 28385004 PMCID: PMC5583421 DOI: 10.4142/jvs.2017.18.s1.333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 10/11/2016] [Accepted: 01/02/2017] [Indexed: 11/24/2022] Open
Abstract
The aim of this study was to investigate the molecular characteristics and to conduct a comparative genomic analysis of Mycobacterium (M.) bovis strain 1595 isolated from a native Korean cow. Molecular typing showed that M. bovis 1595 has spoligotype SB0140 with mycobacterial interspersed repetitive units-variable number of tandem repeats typing of 4-2-5-3-2-7-5-5-4-3-4-3-4-3, representing the most common type of M. bovis in Korea. The complete genome sequence of strain 1595 was determined by single-molecule real-time technology, which showed a genome of 4351712 bp in size with a 65.64% G + C content and 4358 protein-coding genes. Comparative genomic analysis with the genomes of Mycobacterium tuberculosis complex strains revealed that all genomes are similar in size and G + C content. Phylogenetic analysis revealed all strains were within a 0.1% average nucleotide identity value, and MUMmer analysis illustrated that all genomes showed positive collinearity with strain 1595. A sequence comparison based on BLASTP analysis showed that M. bovis AF2122/97 was the strain with the greatest number of completely matched proteins to M. bovis 1595. This genome sequence analysis will serve as a valuable reference for improving understanding of the virulence and epidemiologic traits among M. bovis isolates in Korea.
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Affiliation(s)
- Narae Kim
- Bacterial Disease Division, Animal and Plant Quarantine Agency, Anyang 14089, Korea.,Department of Integrated Biomedical and Life Science, College of Health Science, Korea University, Seoul 02841, Korea
| | - Yunho Jang
- Bacterial Disease Division, Animal and Plant Quarantine Agency, Anyang 14089, Korea
| | - Jin Kyoung Kim
- Bacterial Disease Division, Animal and Plant Quarantine Agency, Anyang 14089, Korea
| | - Soyoon Ryoo
- Bacterial Disease Division, Animal and Plant Quarantine Agency, Anyang 14089, Korea
| | - Ka Hee Kwon
- Bacterial Disease Division, Animal and Plant Quarantine Agency, Anyang 14089, Korea
| | - Miso Kim
- Bacterial Disease Division, Animal and Plant Quarantine Agency, Anyang 14089, Korea
| | - Shin Seok Kang
- Chungcheongbukdo Veterinary Service, Chungju 27492, Korea
| | | | - Hee Soo Lee
- Bacterial Disease Division, Animal and Plant Quarantine Agency, Anyang 14089, Korea
| | - Young-Hee Lim
- Department of Public Health Science (Brain Korea 21 PLUS Program), Graduate School, Korea University, Seoul 02841, Korea
| | - Jae-Myung Kim
- Bacterial Disease Division, Animal and Plant Quarantine Agency, Anyang 14089, Korea
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Kozikowski AP, Onajole OK, Stec J, Dupont C, Viljoen A, Richard M, Chaira T, Lun S, Bishai W, Raj VS, Ordway D, Kremer L. Targeting Mycolic Acid Transport by Indole-2-carboxamides for the Treatment of Mycobacterium abscessus Infections. J Med Chem 2017; 60:5876-5888. [PMID: 28574259 DOI: 10.1021/acs.jmedchem.7b00582] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Mycobacterium abscessus is a fast-growing, multidrug-resistant organism that has emerged as a clinically significant pathogen in cystic fibrosis (CF) patients. The intrinsic resistance of M. abscessus to most commonly available antibiotics seriously restricts chemotherapeutic options. Herein, we report the potent activity of a series of indolecarboxamides against M. abscessus. The lead compounds, 6 and 12, exhibited strong activity in vitro against a wide panel of M. abscessus isolates and in infected macrophages. High resistance levels to the indolecarboxamides appear to be associated with an A309P mutation in the mycolic acid transporter MmpL3. Biochemical analyses demonstrated that while de novo mycolic acid synthesis remained unaffected, the indolecarboxamides strongly inhibited the transport of trehalose monomycolate, resulting in the loss of trehalose dimycolate production and abrogating mycolylation of arabinogalactan. Our data introduce a hereto unexploited chemical structure class active against M. abscessus infections with promising translational development possibilities for the treatment of CF patients.
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Affiliation(s)
- Alan P Kozikowski
- Drug Discovery Program, Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago , 833 South Wood Street, Chicago, Illinois 60612, United States
| | - Oluseye K Onajole
- Drug Discovery Program, Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago , 833 South Wood Street, Chicago, Illinois 60612, United States.,Department of Biological, Chemical and Physical Sciences, Roosevelt University , 425 South Wabash Avenue, Chicago, Illinois 60605, United States
| | - Jozef Stec
- Department of Pharmaceutical Sciences, College of Pharmacy, Chicago State University , 9501 South King Drive, Chicago, Illinois 60628, United States.,Department of Pharmaceutical Sciences, College of Pharmacy, Marshall B. Ketchum University , 2575 Yorba Linda Boulevard, Fullerton, California 92831, United States
| | - Christian Dupont
- Institut de Recherche en Infectiologie (IRIM), CNRS, UMR 9004, Université de Montpellier , Montpellier Cedex 5 34 293, France
| | - Albertus Viljoen
- Institut de Recherche en Infectiologie (IRIM), CNRS, UMR 9004, Université de Montpellier , Montpellier Cedex 5 34 293, France
| | - Matthias Richard
- Institut de Recherche en Infectiologie (IRIM), CNRS, UMR 9004, Université de Montpellier , Montpellier Cedex 5 34 293, France
| | - Tridib Chaira
- Centre for Drug Design Discovery and Development (C4D), SRM University, Delhi-NCR , Rajiv Gandhi Education City, Sonepat 131 029, Haryana India.,Daiichi Sankyo India Pharma Private Limited , Sector 18, Gurgaon 122 015, Haryana India
| | - Shichun Lun
- JHU Center for TB Research, Johns Hopkins School of Medicine , 1550 Orleans Street, Baltimore, Maryland 21231-1001, United States
| | - William Bishai
- JHU Center for TB Research, Johns Hopkins School of Medicine , 1550 Orleans Street, Baltimore, Maryland 21231-1001, United States
| | - V Samuel Raj
- Centre for Drug Design Discovery and Development (C4D), SRM University, Delhi-NCR , Rajiv Gandhi Education City, Sonepat 131 029, Haryana India
| | - Diane Ordway
- Department of Microbiology, Immunology & Pathology, Mycobacteria Research Laboratory, Colorado State University , Fort Collins, Colorado 80523 United States
| | - Laurent Kremer
- Institut de Recherche en Infectiologie (IRIM), CNRS, UMR 9004, Université de Montpellier , Montpellier Cedex 5 34 293, France.,IRIM, INSERM , 34293 Montpellier, France
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47
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Dumas F, Haanappel E. Lipids in infectious diseases - The case of AIDS and tuberculosis. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2017; 1859:1636-1647. [PMID: 28535936 DOI: 10.1016/j.bbamem.2017.05.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 05/11/2017] [Accepted: 05/14/2017] [Indexed: 02/07/2023]
Abstract
Lipids play a central role in many infectious diseases. AIDS (Acquired Immune Deficiency Syndrome) and tuberculosis are two of the deadliest infectious diseases to have struck mankind. The pathogens responsible for these diseases, Human Immunodeficiency Virus-1 and Mycobacterium tuberculosis, rely on lipids and on lipid membrane properties to gain access to their host cells, to persist in them and ultimately to egress from their hosts. In this Review, we discuss the life cycles of these pathogens and the roles played by lipids and membranes. We then give an overview of therapies that target lipid metabolism, modulate host membrane properties or implement lipid-based drug delivery systems. This article is part of a Special Issue entitled: Membrane Lipid Therapy: Drugs Targeting Biomembranes edited by Pablo V. Escribá.
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Affiliation(s)
- Fabrice Dumas
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, France.
| | - Evert Haanappel
- Institut de Pharmacologie et de Biologie Structurale, Université de Toulouse, CNRS, UPS, France
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48
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Machado D, Coelho TS, Perdigão J, Pereira C, Couto I, Portugal I, Maschmann RDA, Ramos DF, von Groll A, Rossetti MLR, Silva PA, Viveiros M. Interplay between Mutations and Efflux in Drug Resistant Clinical Isolates of Mycobacterium tuberculosis. Front Microbiol 2017; 8:711. [PMID: 28496433 PMCID: PMC5406451 DOI: 10.3389/fmicb.2017.00711] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 04/06/2017] [Indexed: 11/23/2022] Open
Abstract
Numerous studies show efflux as a universal bacterial mechanism contributing to antibiotic resistance and also that the activity of the antibiotics subject to efflux can be enhanced by the combined use of efflux inhibitors. Nevertheless, the contribution of efflux to the overall drug resistance levels of clinical isolates of Mycobacterium tuberculosis is poorly understood and still is ignored by many. Here, we evaluated the contribution of drug efflux plus target-gene mutations to the drug resistance levels in clinical isolates of M. tuberculosis. A panel of 17 M. tuberculosis clinical strains were characterized for drug resistance associated mutations and antibiotic profiles in the presence and absence of efflux inhibitors. The correlation between the effect of the efflux inhibitors and the resistance levels was assessed by quantitative drug susceptibility testing. The bacterial growth/survival vs. growth inhibition was analyzed through the comparison between the time of growth in the presence and absence of an inhibitor. For the same mutation conferring antibiotic resistance, different MICs were observed and the different resistance levels found could be reduced by efflux inhibitors. Although susceptibility was not restored, the results demonstrate the existence of a broad-spectrum synergistic interaction between antibiotics and efflux inhibitors. The existence of efflux activity was confirmed by real-time fluorometry. Moreover, the efflux pump genes mmr, mmpL7, Rv1258c, p55, and efpA were shown to be overexpressed in the presence of antibiotics, demonstrating the contribution of these efflux pumps to the overall resistance phenotype of the M. tuberculosis clinical isolates studied, independently of the genotype of the strains. These results showed that the drug resistance levels of multi- and extensively-drug resistant M. tuberculosis clinical strains are a combination between drug efflux and the presence of target-gene mutations, a reality that is often disregarded by the tuberculosis specialists in favor of the almost undisputed importance of antibiotic target-gene mutations for the resistance in M. tuberculosis.
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Affiliation(s)
- Diana Machado
- Unidade de Microbiologia Médica, Global Health and Tropical Medicine, Instituto de Higiene e Medicina Tropical, Universidade Nova de LisboaLisboa, Portugal
| | - Tatiane S. Coelho
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Fundação Universidade Federal do Rio GrandePorto Alegre, Brazil
- Núcleo de Pesquisa em Microbiologia Médica, Faculdade de Medicina, Fundação Universidade Federal do Rio GrandePorto Alegre, Brazil
| | - João Perdigão
- iMed.ULisboa, Instituto de Investigação do Medicamento, Faculdade de Farmácia, Universidade de LisboaLisboa, Portugal
| | - Catarina Pereira
- iMed.ULisboa, Instituto de Investigação do Medicamento, Faculdade de Farmácia, Universidade de LisboaLisboa, Portugal
| | - Isabel Couto
- Unidade de Microbiologia Médica, Global Health and Tropical Medicine, Instituto de Higiene e Medicina Tropical, Universidade Nova de LisboaLisboa, Portugal
| | - Isabel Portugal
- iMed.ULisboa, Instituto de Investigação do Medicamento, Faculdade de Farmácia, Universidade de LisboaLisboa, Portugal
| | - Raquel De Abreu Maschmann
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Fundação Universidade Federal do Rio GrandePorto Alegre, Brazil
- Fundação Estadual de Produção e Pesquisa em Saúde, Centro de Desenvolvimento Científico e TecnológicoPorto Alegre, Brazil
| | - Daniela F. Ramos
- Núcleo de Pesquisa em Microbiologia Médica, Faculdade de Medicina, Fundação Universidade Federal do Rio GrandePorto Alegre, Brazil
| | - Andrea von Groll
- Núcleo de Pesquisa em Microbiologia Médica, Faculdade de Medicina, Fundação Universidade Federal do Rio GrandePorto Alegre, Brazil
| | - Maria L. R. Rossetti
- Fundação Estadual de Produção e Pesquisa em Saúde, Centro de Desenvolvimento Científico e TecnológicoPorto Alegre, Brazil
- Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada à Saúde, Universidade Luterana do BrasilCanoas, Brazil
| | - Pedro A. Silva
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Fundação Universidade Federal do Rio GrandePorto Alegre, Brazil
- Núcleo de Pesquisa em Microbiologia Médica, Faculdade de Medicina, Fundação Universidade Federal do Rio GrandePorto Alegre, Brazil
| | - Miguel Viveiros
- Unidade de Microbiologia Médica, Global Health and Tropical Medicine, Instituto de Higiene e Medicina Tropical, Universidade Nova de LisboaLisboa, Portugal
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49
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Viljoen A, Dubois V, Girard-Misguich F, Blaise M, Herrmann JL, Kremer L. The diverse family of MmpL transporters in mycobacteria: from regulation to antimicrobial developments. Mol Microbiol 2017; 104:889-904. [DOI: 10.1111/mmi.13675] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/20/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Albertus Viljoen
- Institut de Recherche en Infectiologie de Montpellier (IRIM); CNRS, UMR 9004, Université de Montpellier, France
| | - Violaine Dubois
- INSERM, UMR1173; Université de Versailles Saint-Quentin-en-Yvelines; Montigny-le-Bretonneux 78180 France
| | - Fabienne Girard-Misguich
- INSERM, UMR1173; Université de Versailles Saint-Quentin-en-Yvelines; Montigny-le-Bretonneux 78180 France
| | - Mickaël Blaise
- Institut de Recherche en Infectiologie de Montpellier (IRIM); CNRS, UMR 9004, Université de Montpellier, France
| | - Jean-Louis Herrmann
- INSERM, UMR1173; Université de Versailles Saint-Quentin-en-Yvelines; Montigny-le-Bretonneux 78180 France
| | - Laurent Kremer
- Institut de Recherche en Infectiologie de Montpellier (IRIM); CNRS, UMR 9004, Université de Montpellier, France
- IRIM; INSERM; 34293 Montpellier France
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50
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Rosas Olvera M, Vivès E, Molle V, Blanc-Potard AB, Gannoun-Zaki L. Endogenous and Exogenous KdpF Peptide Increases Susceptibility of Mycobacterium bovis BCG to Nitrosative Stress and Reduces Intramacrophage Replication. Front Cell Infect Microbiol 2017; 7:115. [PMID: 28428950 PMCID: PMC5382158 DOI: 10.3389/fcimb.2017.00115] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 03/22/2017] [Indexed: 11/15/2022] Open
Abstract
Emerging antibiotic resistance in pathogenic bacteria like Mycobacterium sp., poses a threat to human health and therefore calls for the development of novel antibacterial strategies. We have recently discovered that bacterial membrane peptides, such as KdpF, possess anti-virulence properties when overproduced in pathogenic bacterial species. Overproduction of the KdpF peptide in Mycobacterium bovis BCG decreased bacterial replication within macrophages, without presenting antibacterial activity. We propose that KdpF functions as a regulatory molecule and interferes with bacterial virulence, potentially through interaction with the PDIM transporter MmpL7. We demonstrate here that KdpF overproduction in M. bovis BCG, increased bacterial susceptibility to nitrosative stress and thereby was responsible for lower replication rate within macrophages. Moreover, in a bacterial two-hybrid system, KdpF was able to interact not only with MmpL7 but also with two membrane proteins involved in nitrosative stress detoxification (NarI and NarK2), and a membrane protein of unknown function that is highly induced upon nitrosative stress (Rv2617c). Interestingly, we showed that the exogenous addition of KdpF synthetic peptide could affect the stability of proteins that interact with this peptide. Finally, the exogenous KdpF peptide presented similar biological effects as the endogenously expressed peptide including nitrosative stress susceptibility and reduced intramacrophage replication rate for M. bovis BCG. Taken together, our results establish a link between high levels of KdpF and nitrosative stress susceptibility to further highlight KdpF as a potent molecule with anti-virulence properties.
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Affiliation(s)
- Mariana Rosas Olvera
- Laboratoire de Dynamique des Interactions Membranaires Normales et Pathologiques, Université MontpellierMontpellier, France.,Centre National de la Recherche Scientifique, UMR5235Montpellier, France
| | - Eric Vivès
- CRBM, Centre National de la Recherche Scientifique UMR 5237Montpellier, France
| | - Virginie Molle
- Laboratoire de Dynamique des Interactions Membranaires Normales et Pathologiques, Université MontpellierMontpellier, France.,Centre National de la Recherche Scientifique, UMR5235Montpellier, France
| | - Anne-Béatrice Blanc-Potard
- Laboratoire de Dynamique des Interactions Membranaires Normales et Pathologiques, Université MontpellierMontpellier, France.,Centre National de la Recherche Scientifique, UMR5235Montpellier, France
| | - Laila Gannoun-Zaki
- Laboratoire de Dynamique des Interactions Membranaires Normales et Pathologiques, Université MontpellierMontpellier, France.,Centre National de la Recherche Scientifique, UMR5235Montpellier, France
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