1
|
Machushynets N, Al Ayed K, Terlouw BR, Du C, Buijs NP, Willemse J, Elsayed SS, Schill J, Trebosc V, Pieren M, Alexander FM, Cochrane SA, Liles MR, Medema MH, Martin NI, van Wezel GP. Discovery and Derivatization of Tridecaptin Antibiotics with Altered Host Specificity and Enhanced Bioactivity. ACS Chem Biol 2024; 19:1106-1115. [PMID: 38602492 PMCID: PMC11106739 DOI: 10.1021/acschembio.4c00034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/13/2024] [Accepted: 03/25/2024] [Indexed: 04/12/2024]
Abstract
The prevalence of multidrug-resistant (MDR) pathogens combined with a decline in antibiotic discovery presents a major challenge for health care. To refill the discovery pipeline, we need to find new ways to uncover new chemical entities. Here, we report the global genome mining-guided discovery of new lipopeptide antibiotics tridecaptin A5 and tridecaptin D, which exhibit unusual bioactivities within their class. The change in the antibacterial spectrum of Oct-TriA5 was explained solely by a Phe to Trp substitution as compared to Oct-TriA1, while Oct-TriD contained 6 substitutions. Metabolomic analysis of producer Paenibacillus sp. JJ-21 validated the predicted amino acid sequence of tridecaptin A5. Screening of tridecaptin analogues substituted at position 9 identified Oct-His9 as a potent congener with exceptional efficacy against Pseudomonas aeruginosa and reduced hemolytic and cytotoxic properties. Our work highlights the promise of tridecaptin analogues to combat MDR pathogens.
Collapse
Affiliation(s)
- Nataliia
V. Machushynets
- Molecular
Biotechnology, Institute of Biology, Leiden
University, Leiden 2333 BE, The Netherlands
| | - Karol Al Ayed
- Biological
Chemistry Group, Institute of Biology, Leiden
University, Leiden 2333 BE, The Netherlands
| | - Barbara R. Terlouw
- Bioinformatics
Group, Wageningen University, Wageningen 6700 PB, The Netherlands
| | - Chao Du
- Molecular
Biotechnology, Institute of Biology, Leiden
University, Leiden 2333 BE, The Netherlands
| | - Ned P. Buijs
- Biological
Chemistry Group, Institute of Biology, Leiden
University, Leiden 2333 BE, The Netherlands
| | - Joost Willemse
- Molecular
Biotechnology, Institute of Biology, Leiden
University, Leiden 2333 BE, The Netherlands
| | - Somayah S. Elsayed
- Molecular
Biotechnology, Institute of Biology, Leiden
University, Leiden 2333 BE, The Netherlands
| | - Julian Schill
- BioVersys
AG, c/o Technologiepark, Basel CH-4057, Switzerland
| | - Vincent Trebosc
- BioVersys
AG, c/o Technologiepark, Basel CH-4057, Switzerland
| | - Michel Pieren
- BioVersys
AG, c/o Technologiepark, Basel CH-4057, Switzerland
| | - Francesca M. Alexander
- School of
Chemistry and Chemical Engineering, Queen’s
University of Belfast, Belfast BT9 5AG, United Kingdom
| | - Stephen A. Cochrane
- School of
Chemistry and Chemical Engineering, Queen’s
University of Belfast, Belfast BT9 5AG, United Kingdom
| | - Mark R. Liles
- Department
of Biological Sciences, Auburn University, Auburn, Alabama 36849, United States
| | - Marnix H. Medema
- Bioinformatics
Group, Wageningen University, Wageningen 6700 PB, The Netherlands
| | - Nathaniel I. Martin
- Biological
Chemistry Group, Institute of Biology, Leiden
University, Leiden 2333 BE, The Netherlands
| | - Gilles P. van Wezel
- Molecular
Biotechnology, Institute of Biology, Leiden
University, Leiden 2333 BE, The Netherlands
- Department
of Microbial Ecology, Netherlands Institute
of Ecology, Wageningen 6700 PB, The Netherlands
| |
Collapse
|
2
|
Paramanya S, Lee JH, Lee J. Antibiofilm activity of carotenoid crocetin against Staphylococcal strains. Front Cell Infect Microbiol 2024; 14:1404960. [PMID: 38803574 PMCID: PMC11128560 DOI: 10.3389/fcimb.2024.1404960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 04/26/2024] [Indexed: 05/29/2024] Open
Abstract
Staphylococcus aureus and Staphylococcus epidermidis stand as notorious threats to human beings owing to the myriad of infections they cause. The bacteria readily form biofilms that help in withstanding the effects of antibiotics and the immune system. Intending to combat the biofilm formation and reduce the virulence of the pathogens, we investigated the effects of carotenoids, crocetin, and crocin, on four Staphylococcal strains. Crocetin was found to be the most effective as it diminished the biofilm formation of S. aureus ATCC 6538 significantly at 50 µg/mL without exhibiting bactericidal effect (MIC >800 µg/mL) and also inhibited the formation of biofilm by MSSA 25923 and S. epidermidis at a concentration as low as 2 µg/mL, and that by methicillin-resistant S. aureus MW2 at 100 µg/mL. It displayed minimal to no antibiofilm efficacy on the Gram-negative strains Escherichia coli O157:H7 and Pseudomonas aeruginosa as well as a fungal strain of Candida albicans. It could also curb the formation of fibrils, which partly contributes to the biofilm formation in S. epidermidis. Additionally, the ADME analysis of crocetin proclaims how relatively non-toxic the chemical is. Also, crocetin displayed synergistic antibiofilm characteristics in combination with tobramycin. The presence of a polyene chain with carboxylic acid groups at its ends is hypothesized to contribute to the strong antibiofilm characteristics of crocetin. These findings suggest that using apocarotenoids, particularly crocetin might help curb the biofilm formation by S. aureus and S. epidermidis.
Collapse
Affiliation(s)
| | | | - Jintae Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Republic of Korea
| |
Collapse
|
3
|
Palpal-Latoc D, Horsfall AJ, Cameron AJ, Campbell G, Ferguson SA, Cook GM, Sander V, Davidson AJ, Harris PWR, Brimble MA. Synthesis, Structure-Activity Relationship Study, Bioactivity, and Nephrotoxicity Evaluation of the Proposed Structure of the Cyclic Lipodepsipeptide Brevicidine B. JOURNAL OF NATURAL PRODUCTS 2024. [PMID: 38423998 DOI: 10.1021/acs.jnatprod.3c00876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
The brevicidines represent a novel class of nonribosomal antimicrobial peptides that possess remarkable potency and selectivity toward highly problematic and resistant Gram-negative pathogenic bacteria. A recently discovered member of the brevicidine family, coined brevicidine B (2), comprises a single amino acid substitution (from d-Tyr2 to d-Phe2) in the amino acid sequence of the linear moiety of brevicidine (1) and was reported to exhibit broader antimicrobial activity against both Gram-negative (MIC = 2-4 μgmL-1) and Gram-positive (MIC = 2-8 μgmL-1) pathogens. Encouraged by this, we herein report the first total synthesis of the proposed structure of brevicidine B (2), building on our previously reported synthetic strategy to access brevicidine (1). In agreement with the original isolation paper, pleasingly, synthetic 2 demonstrated antimicrobial activity toward Escherichia coli, Pseudomonas aeruginosa, and Klebsiella pneumoniae (MIC = 4-8 μgmL-1). Interestingly, however, synthetic 2 was inactive toward all of the tested Gram-positive pathogens, including methicillin-resistant Staphylococcus aureus strains. Substitution of d-Phe2 with its enantiomer, and other hydrophobic residues, yields analogues that were either inactive or only exhibited activity toward Gram-negative strains. The striking difference in the biological activity of our synthetic 2 compared to the reported natural compound warrants the re-evaluation of the original natural product for purity or possible differences in relative configuration. Finally, the evaluation of synthetic 1 and 2 in a human kidney organoid model of nephrotoxicity revealed substantial toxicity of both compounds, although 1 was less toxic than 2 and polymyxin B. These results indicate that modification to position 2 may afford a strategy to mitigate the nephrotoxicity of brevicidine.
Collapse
Affiliation(s)
- Dennise Palpal-Latoc
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland 1010, New Zealand
- School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland 1010, New Zealand
| | - Aimee J Horsfall
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland 1010, New Zealand
- School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland 1010, New Zealand
| | - Alan J Cameron
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland 1010, New Zealand
- School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland 1010, New Zealand
| | - Georgia Campbell
- Department of Microbiology and Immunology, School of Medical Sciences, The University of Otago, 720 Cumberland Street, Dunedin 9054, New Zealand
| | - Scott A Ferguson
- Department of Microbiology and Immunology, School of Medical Sciences, The University of Otago, 720 Cumberland Street, Dunedin 9054, New Zealand
| | - Gregory M Cook
- Department of Microbiology and Immunology, School of Medical Sciences, The University of Otago, 720 Cumberland Street, Dunedin 9054, New Zealand
| | - Veronika Sander
- Faculty of Medical and Health Sciences, The University of Auckland 85 Park Road, Grafton, Auckland 1023, New Zealand
| | - Alan J Davidson
- Faculty of Medical and Health Sciences, The University of Auckland 85 Park Road, Grafton, Auckland 1023, New Zealand
| | - Paul W R Harris
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland 1010, New Zealand
- School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland 1010, New Zealand
| | - Margaret A Brimble
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland 1010, New Zealand
- School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland 1010, New Zealand
| |
Collapse
|
4
|
Karak M, Cloonan CR, Baker BR, Cochrane RVK, Cochrane SA. Optimizations of lipid II synthesis: an essential glycolipid precursor in bacterial cell wall synthesis and a validated antibiotic target. Beilstein J Org Chem 2024; 20:220-227. [PMID: 38352069 PMCID: PMC10862138 DOI: 10.3762/bjoc.20.22] [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: 11/17/2023] [Accepted: 01/26/2024] [Indexed: 02/16/2024] Open
Abstract
Lipid II is an essential glycolipid found in bacteria. Accessing this valuable cell wall precursor is important both for studying cell wall synthesis and for studying/identifying novel antimicrobial compounds. Herein, we describe optimizations to the modular chemical synthesis of lipid II and unnatural analogues. In particular, the glycosylation step, a critical step in the formation of the central disaccharide unit (GlcNAc-MurNAc), was optimized. This was achieved by employing the use of glycosyl donors with diverse leaving groups. The key advantage of this approach lies in its adaptability, allowing for the generation of a wide array of analogues through the incorporation of alternative building blocks at different stages of synthesis.
Collapse
Affiliation(s)
- Milandip Karak
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, UK
| | - Cian R Cloonan
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, UK
| | - Brad R Baker
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, UK
| | - Rachel V K Cochrane
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, UK
| | - Stephen A Cochrane
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, UK
| |
Collapse
|
5
|
Ballantine RD, Al Ayed K, Bann SJ, Hoekstra M, Martin NI, Cochrane SA. Linearization of the Brevicidine and Laterocidine Lipopeptides Yields Analogues That Retain Full Antibacterial Activity. J Med Chem 2023; 66:6002-6009. [PMID: 37071814 PMCID: PMC10150354 DOI: 10.1021/acs.jmedchem.3c00308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Abstract
Brevicidine and laterocidine are macrocyclic lipodepsipeptides with selective activity against Gram-negative bacteria, including colistin-resistant strains. Previously, the macrocyclic core of these peptides was thought essential for antibacterial activity. In this study, we show that C-terminal amidation of linear brevicidine and laterocidine scaffolds, and substitution of the native Thr9, yields linear analogues that retain the potent antibacterial activity and low hemolysis of the parent compounds. Furthermore, an alanine scan of both peptides revealed that the aromatic and basic amino acids within the common central scaffold are essential for antibacterial activity. This linearization strategy for modification of cyclic peptides is a highly effective way to reduce the time and cost of peptide synthesis and may be applicable to other non-ribosomal antibacterial peptides.
Collapse
Affiliation(s)
- Ross D Ballantine
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Stranmillis Road, Belfast BT9 5AG, U.K
| | - Karol Al Ayed
- Biological Chemistry Group, Institute of Biology, Leiden University, Sylviusweg 72, Leiden 2333 BE, The Netherlands
| | - Samantha J Bann
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Stranmillis Road, Belfast BT9 5AG, U.K
| | - Michael Hoekstra
- Biological Chemistry Group, Institute of Biology, Leiden University, Sylviusweg 72, Leiden 2333 BE, The Netherlands
| | - Nathaniel I Martin
- Biological Chemistry Group, Institute of Biology, Leiden University, Sylviusweg 72, Leiden 2333 BE, The Netherlands
| | - Stephen A Cochrane
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Stranmillis Road, Belfast BT9 5AG, U.K
| |
Collapse
|
6
|
Kesharwani K, Singh R, Tripathi SK, Kaul G, Akhir A, Saxena D, Kumar V, Mishra NK, Chopra S, Joshi KB. Antimicrobial Activity of Silver Nanoparticles Loaded Biomimetic Isomeric Short Lipopeptide Nanostructures. ChemistrySelect 2022. [DOI: 10.1002/slct.202202234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Khushboo Kesharwani
- Department of Chemistry School of Chemical Science and Technology Dr. Harisingh Gour Vishwavidyalaya (A Central University) Sagar MP 470003 India
| | - Ramesh Singh
- Department of Chemistry School of Chemical Science and Technology Dr. Harisingh Gour Vishwavidyalaya (A Central University) Sagar MP 470003 India
| | - Satyendra Kumar Tripathi
- Department of Chemistry School of Chemical Science and Technology Dr. Harisingh Gour Vishwavidyalaya (A Central University) Sagar MP 470003 India
| | - Grace Kaul
- Department of Microbiology CSIR-Central Drug Research Institute Sitapur Road, Janakipuram Extension Lucknow India
- AcSIR: Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Abdul Akhir
- Department of Microbiology CSIR-Central Drug Research Institute Sitapur Road, Janakipuram Extension Lucknow India
| | - Deepanshi Saxena
- Department of Microbiology CSIR-Central Drug Research Institute Sitapur Road, Janakipuram Extension Lucknow India
| | - Vikas Kumar
- Department of Chemistry Indian Institute of Science Bengaluru Karnataka India
| | | | - Sidharth Chopra
- Department of Microbiology CSIR-Central Drug Research Institute Sitapur Road, Janakipuram Extension Lucknow India
- AcSIR: Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Khashti Ballabh Joshi
- Department of Chemistry School of Chemical Science and Technology Dr. Harisingh Gour Vishwavidyalaya (A Central University) Sagar MP 470003 India
| |
Collapse
|
7
|
Comparative Genomics Insights into a Novel Biocontrol Agent Paenibacillus peoriae Strain ZF390 against Bacterial Soft Rot. BIOLOGY 2022; 11:biology11081172. [PMID: 36009799 PMCID: PMC9404902 DOI: 10.3390/biology11081172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/27/2022] [Accepted: 08/03/2022] [Indexed: 11/16/2022]
Abstract
Simple Summary Bacterial soft rot, attributed to Pectobacterium brasiliense infection, has caused destructive impacts and colossal economic losses to China’s agricultural industry. Chemical control, which was ubiquitously used, cannot manage this disease as expected, so biocontrol has been followed with interest to date. In this study, we found a Paenibacillus peoriae strain ZF390 that had a potent control efficiency over cucumber plants against Pectobacterium brasiliense, and the comparative genomic analysis revealed biocontrol mechanisms might be involved in the strain ZF390. Abstract Bacterial soft rot, caused by Pectobacterium brasiliense, can infect several economically important horticultural crops. However, the management strategies available to control this disease are limited. Plant-growth-promoting rhizobacteria (PGPR) have been considered to be promising biocontrol agents. With the aim of obtaining a strain suitable for agricultural applications, 161 strains were isolated from the rhizosphere soil of healthy cucumber plants and screened through plate bioassays and greenhouse tests. Paenibacillus peoriae ZF390 exhibited an eminent control effect against soft rot disease and a broad antagonistic activity spectrum in vitro. Moreover, ZF390 showed good activities of cellulase, protease, and phosphatase and a tolerance of heavy metal. Whole-genome sequencing was performed and annotated to explore the underlying biocontrol mechanisms. Strain ZF390 consists of one 6,193,667 bp circular chromosome and three plasmids. Comparative genome analysis revealed that ZF390 involves ten gene clusters responsible for secondary metabolite antibiotic synthesis, matching its excellent biocontrol activity. Plenty of genes related to plant growth promotion, biofilm formation, and induced systemic resistance were mined to reveal the biocontrol mechanisms that might consist in strain ZF390. Overall, these findings suggest that strain ZF390 could be a potential biocontrol agent in bacterial-soft-rot management, as well as a source of antimicrobial mechanisms for further exploitation.
Collapse
|
8
|
da Costa RA, Andrade IEPC, Pinto OHB, de Souza BBP, Fulgêncio DLA, Mendonça ML, Kurokawa AS, Ortega DB, Carvalho LS, Krüger RH, Ramada MHS, Barreto CC. A novel family of non-secreted tridecaptin lipopeptide produced by Paenibacillus elgii. Amino Acids 2022; 54:1477-1489. [PMID: 35864259 DOI: 10.1007/s00726-022-03187-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 07/04/2022] [Indexed: 11/25/2022]
Abstract
Bacteria from the genus Paenibacillus make a variety of antimicrobial compounds, including lipopeptides produced by a non-ribosomal synthesis mechanism (NRPS). In the present study, we show the genomic and phenotypical characterization of Paenibacillus elgii AC13 which makes three groups of small molecules: the antimicrobial pelgipeptins and two other families of peptides that have not been described in P. elgii. A family of lipopeptides with [M + H]+ 1664, 1678, 1702, and 1717 m/z was purified from the culture cell fraction. Partial characterization revealed that they are similar to tridecaptin from P. terrae. However, they present amino acid chain modifications in positions 3, 7, and 10. These new variants were named tridecaptin G1, G2, G3, and G4. Furthermore, a gene cluster was identified in P. elgii AC13 genome, revealing high similarity to the tridecaptin-NRPS gene cluster from P. terrae. Tridecaptin G1 and G2 showed in vitro antimicrobial activity against Escherichia coli, Klebsiella pneumonia (including a multidrug-resistant strain), Staphylococcus aureus, and Candida albicans. Tri G3 did not show antimicrobial activity against S. aureus and C. albicans at all tested concentrations. An intriguing feature of this family of lipopeptides is that it was only observed in the cell fraction of the P. elgii AC13 culture, which could be a result of the amino acid sequence modifications presented in these variants.
Collapse
Affiliation(s)
- Rosiane Andrade da Costa
- Graduate Program in Genomic Sciences and Biotechnology, Catholic University of Brasilia, SGAN 916, Brasília, DF, 70790-160, Brazil
| | | | - Otávio Henrique Bezerra Pinto
- Laboratory of Enzymology, Department of Cell Biology, Institute of Biological Sciences, University of Brasília, Brasília, 70910-900, Brazil
| | | | - Débora Luíza Albano Fulgêncio
- Graduate Program in Genomic Sciences and Biotechnology, Catholic University of Brasilia, SGAN 916, Brasília, DF, 70790-160, Brazil
| | - Marise Leite Mendonça
- Graduate Program in Genomic Sciences and Biotechnology, Catholic University of Brasilia, SGAN 916, Brasília, DF, 70790-160, Brazil
| | - Adriane Silva Kurokawa
- Graduate Program in Genomic Sciences and Biotechnology, Catholic University of Brasilia, SGAN 916, Brasília, DF, 70790-160, Brazil
| | - Daniel Barros Ortega
- Graduate Program in Genomic Sciences and Biotechnology, Catholic University of Brasilia, SGAN 916, Brasília, DF, 70790-160, Brazil.,Graduate Program in Environmental Technology and Water Resources, University of Brasilia, Campus Universitário Darcy Ribeiro, SG-12, Brasília, Brazil
| | - Lucas Silva Carvalho
- Laboratory of Enzymology, Department of Cell Biology, Institute of Biological Sciences, University of Brasília, Brasília, 70910-900, Brazil
| | - Ricardo Henrique Krüger
- Laboratory of Enzymology, Department of Cell Biology, Institute of Biological Sciences, University of Brasília, Brasília, 70910-900, Brazil
| | - Marcelo Henrique Soller Ramada
- Graduate Program in Genomic Sciences and Biotechnology, Catholic University of Brasilia, SGAN 916, Brasília, DF, 70790-160, Brazil.,Graduate Program in Gerontology, Catholic University of Brasilia, SGAN 916, Brasília, DF, 70790-160, Brazil
| | - Cristine Chaves Barreto
- Graduate Program in Genomic Sciences and Biotechnology, Catholic University of Brasilia, SGAN 916, Brasília, DF, 70790-160, Brazil.
| |
Collapse
|
9
|
Wang Z, Koirala B, Hernandez Y, Brady SF. Discovery of Paenibacillaceae Family Gram-Negative-Active Cationic Lipopeptide Antibiotics Using Evolution-Guided Chemical Synthesis. Org Lett 2022; 24:4943-4948. [PMID: 35776528 DOI: 10.1021/acs.orglett.2c01879] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Cationic nonribosomal lipopeptides (CNRLPs) from Paenibacillus spp. have been a rewarding source of Gram-negative-active antibiotics. Here we systematically screened sequenced bacterial genomes for CNRLP biosynthetic gene clusters (BGCs) that we predicted might encode additional Gram-negative-active antibiotics. Total chemical synthesis of the bioinformatically predicted products of seven such BGCs led to our identification of new laterocidine, tridecaptin, and paenibacterin-like antibiotics with potent activity against both multiple-drug-resistant Gram-negative and Gram-positive pathogens.
Collapse
Affiliation(s)
- Zongqiang Wang
- Laboratory of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, New York 10065, United States
| | - Bimal Koirala
- Laboratory of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, New York 10065, United States
| | - Yozen Hernandez
- Laboratory of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, New York 10065, United States
| | - Sean F Brady
- Laboratory of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, New York 10065, United States
| |
Collapse
|
10
|
Lopes BS, Hanafiah A, Nachimuthu R, Muthupandian S, Md Nesran ZN, Patil S. The Role of Antimicrobial Peptides as Antimicrobial and Antibiofilm Agents in Tackling the Silent Pandemic of Antimicrobial Resistance. Molecules 2022; 27:molecules27092995. [PMID: 35566343 PMCID: PMC9105241 DOI: 10.3390/molecules27092995] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 01/11/2023] Open
Abstract
Just over a million people died globally in 2019 due to antibiotic resistance caused by ESKAPE pathogens (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species). The World Health Organization (WHO) also lists antibiotic-resistant Campylobacter and Helicobacter as bacteria that pose the greatest threat to human health. As it is becoming increasingly difficult to discover new antibiotics, new alternatives are needed to solve the crisis of antimicrobial resistance (AMR). Bacteria commonly found in complex communities enclosed within self-produced matrices called biofilms are difficult to eradicate and develop increased stress and antimicrobial tolerance. This review summarises the role of antimicrobial peptides (AMPs) in combating the silent pandemic of AMR and their application in clinical medicine, focusing on both the advantages and disadvantages of AMPs as antibiofilm agents. It is known that many AMPs display broad-spectrum antimicrobial activities, but in a variety of organisms AMPs are not stable (short half-life) or have some toxic side effects. Hence, it is also important to develop new AMP analogues for their potential use as drug candidates. The use of one health approach along with developing novel therapies using phages and breakthroughs in novel antimicrobial peptide synthesis can help us in tackling the problem of AMR.
Collapse
Affiliation(s)
- Bruno S. Lopes
- Department of Medical Microbiology, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen AB25 2ZD, UK
- Correspondence: (B.S.L.); (A.H.)
| | - Alfizah Hanafiah
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia;
- Correspondence: (B.S.L.); (A.H.)
| | - Ramesh Nachimuthu
- Antibiotic Resistance and Phage Therapy Laboratory, Department of Biomedical Sciences, Vellore Institute of Technology, School of Bioscience and Technology, Vellore 632014, India;
| | - Saravanan Muthupandian
- AMR and Nanotherapeutics Laboratory, Department of Pharmacology, Saveetha Institute of Medical and Technical Sciences, Saveetha Dental College, Chennai 600077, India;
| | - Zarith Nameyrra Md Nesran
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia;
| | - Sandip Patil
- Department of Hematology and Oncology, Shenzhen Children’s Hospital, Shenzhen 518038, China;
| |
Collapse
|
11
|
Assefa M. Multi-drug resistant gram-negative bacterial pneumonia: etiology, risk factors, and drug resistance patterns. Pneumonia (Nathan) 2022; 14:4. [PMID: 35509063 PMCID: PMC9069761 DOI: 10.1186/s41479-022-00096-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 04/11/2022] [Indexed: 12/27/2022] Open
Abstract
Bacterial pneumonia is one of the most serious public health issues owing to its medical and economic costs, which result in increased morbidity and mortality in people of all ages around the world. Furthermore, antimicrobial resistance has risen over time, and the advent of multi-drug resistance in GNB complicates therapy and has a detrimental impact on patient outcomes. The current review aimed to summarize bacterial pneumonia with an emphasis on gram-negative etiology, pathogenesis, risk factors, resistance mechanisms, treatment updates, and vaccine concerns to tackle the problem before it causes a serious consequence. In conclusion, the global prevalence of GNB in CAP was reported 49.7% to 83.1%, whereas in VAP patients ranged between 76.13% to 95.3%. The most commonly reported MDR-GNB causes of pneumonia were A. baumannii, K. pneumoniae, and P. aeruginosa, with A. baumannii isolated particularly in VAP patients and the elderly. In most studies, ampicillin, tetracyclines, amoxicillin-clavulanic acid, cephalosporins, and carbapenems were shown to be highly resistant. Prior MDR-GNB infection, older age, previous use of broad-spectrum antibiotics, high frequency of local antibiotic resistance, prolonged hospital stays, ICU admission, mechanical ventilation, and immunosuppression are associated with the MDR-GNB colonization. S. maltophilia was reported as a severe cause of HAP/VAP in patients with mechanically ventilated and having hematologic malignancy due to its ability of biofilm formation, site adhesion in respiratory devices, and its intrinsic and acquired drug resistance mechanisms. Effective combination therapies targeting PDR strains and drug-resistant genes, antibiofilm agents, gene-based vaccinations, and pathogen-specific lymphocytes should be developed in the future.
Collapse
Affiliation(s)
- Muluneh Assefa
- Department of Medical Microbiology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, P.O. Box 196, Gondar, Ethiopia.
| |
Collapse
|
12
|
Du YE, Bae ES, Lim Y, Cho JC, Nam SJ, Shin J, Lee SK, Nam SI, Oh DC. Svalbamides A and B, Pyrrolidinone-Bearing Lipodipeptides from Arctic Paenibacillus sp. Mar Drugs 2021; 19:229. [PMID: 33920625 PMCID: PMC8073366 DOI: 10.3390/md19040229] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/15/2021] [Accepted: 04/15/2021] [Indexed: 11/23/2022] Open
Abstract
Two new secondary metabolites, svalbamides A (1) and B (2), were isolated from a culture extract of Paenibacillus sp. SVB7 that was isolated from surface sediment from a core (HH17-1085) taken in the Svalbard archipelago in the Arctic Ocean. The combinational analysis of HR-MS and NMR spectroscopic data revealed the structures of 1 and 2 as being lipopeptides bearing 3-amino-2-pyrrolidinone, d-valine, and 3-hydroxy-8-methyldecanoic acid. The absolute configurations of the amino acid residues in svalbamides A and B were determined using the advanced Marfey's method, in which the hydrolysates of 1 and 2 were derivatized with l- and d- forms of 1-fluoro-2,4-dinitrophenyl-5-alanine amide (FDAA). The absolute configurations of 1 and 2 were completely assigned by deducing the stereochemistry of 3-hydroxy-8-methyldecanoic acid based on DP4 calculations. Svalbamides A and B induced quinone reductase activity in Hepa1c1c7 murine hepatoma cells, indicating that they represent chemotypes with a potential for functioning as chemopreventive agents.
Collapse
Affiliation(s)
- Young Eun Du
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Korea; (Y.E.D.); (E.S.B.); (J.S.); (S.K.L.)
| | - Eun Seo Bae
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Korea; (Y.E.D.); (E.S.B.); (J.S.); (S.K.L.)
| | - Yeonjung Lim
- Department of Biological Sciences, Inha University, Incheon 22212, Korea; (Y.L.); (J.-C.C.)
| | - Jang-Cheon Cho
- Department of Biological Sciences, Inha University, Incheon 22212, Korea; (Y.L.); (J.-C.C.)
| | - Sang-Jip Nam
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea;
| | - Jongheon Shin
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Korea; (Y.E.D.); (E.S.B.); (J.S.); (S.K.L.)
| | - Sang Kook Lee
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Korea; (Y.E.D.); (E.S.B.); (J.S.); (S.K.L.)
| | - Seung-Il Nam
- Korea Polar Research Institute, Incheon 21990, Korea;
| | - Dong-Chan Oh
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Korea; (Y.E.D.); (E.S.B.); (J.S.); (S.K.L.)
| |
Collapse
|