1
|
Riahi HS, Heidarieh P, Fatahi-Bafghi M. Genus Pseudonocardia: What we know about its biological properties, abilities and current application in biotechnology. J Appl Microbiol 2021; 132:890-906. [PMID: 34469043 DOI: 10.1111/jam.15271] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 07/08/2021] [Accepted: 08/26/2021] [Indexed: 12/12/2022]
Abstract
The genus Pseudonocardia belongs to a group of Actinomycetes, and is a member of the family Pseudonocardiacea. The members of this genus are aerobic, Gram-positive, non-motile bacteria that are commonly found in soil, plant and environment. Although this genus has a low clinical significance; however, it has an important role in biotechnology due to the production of secondary metabolites, some of which have anti-bacterial, anti-fungal and anti-tumour effects. The use of phenotypic tests, such as gelatinase activity, starch hydrolysis, catalase and oxidase tests, as well as molecular methods, such as polymerase chain reaction, are necessary for Pseudonocardia identification at the genus and species levels.
Collapse
Affiliation(s)
- Hanieh Sadat Riahi
- Department of Microbiology, Faculty of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Parvin Heidarieh
- Department of Bacteriology and Virology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Mehdi Fatahi-Bafghi
- Department of Microbiology, Faculty of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| |
Collapse
|
2
|
Watanabe T. Synthesis and Structure−Activity Relationship Study of Intervenolin, an Antitumor and Anti-Helicobacter pylori Quinolone Natural Product. HETEROCYCLES 2021. [DOI: 10.3987/rev-21-957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
3
|
Ramos AF, Woods DF, Shanahan R, Cano R, McGlacken GP, Serra C, O'Gara F, Reen FJ. A structure-function analysis of interspecies antagonism by the 2-heptyl-4-alkyl-quinolone signal molecule from Pseudomonas aeruginosa. MICROBIOLOGY-SGM 2020; 166:169-179. [PMID: 31860435 DOI: 10.1099/mic.0.000876] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In recent years, the alkyl-quinolone molecular framework has already provided a rich source of bioactivity for the development of novel anti-infective compounds. Based on the quorum-sensing signalling molecules 4-hydroxy-2-heptylquinoline (HHQ) and 3,4-dihydroxy-2-heptylquinoline (PQS) from the nosocomial pathogen Pseudomonas aeruginosa, modifications have been developed with markedly enhanced anti-biofilm bioactivity towards important fungal and bacterial pathogens, including Candida albicans and Aspergillus fumigatus. Here we show that antibacterial activity of HHQ against Vibrionaceae is species-specific and it requires an exquisite level of structural fidelity within the alkyl-quinolone molecular framework. Antibacterial activity was demonstrated against the serious human pathogens Vibrio vulnificus and Vibrio cholerae as well as a panel of bioluminescent squid symbiont Allivibrio fischeri isolates. In contrast, Vibrio parahaemolyticus growth and biofilm formation was unaffected in the presence of HHQ and all the structural variants tested. In general, modification to almost all of the molecule except the alkyl-chain end, led to loss of activity. This suggests that the bacteriostatic activity of HHQ requires the concerted action of the entire framework components. The only exception to this pattern was deuteration of HHQ at the C3 position. HHQ modified with a terminal alkene at the quinolone alkyl chain retained bacteriostatic activity and was also found to activate PqsR signalling comparable to the native agonist. The data from this integrated analysis provides novel insights into the structural flexibility underpinning the signalling activity of the complex alkyl-quinolone molecular communication system.
Collapse
Affiliation(s)
- Ana F Ramos
- CIIMAR, -Centro Interdisciplinar de Investigação Marinha e Ambiental University of Porto, Porto Matosinhos, Portugal.,Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
| | - David F Woods
- BIOMERIT Research Centre, School of Microbiology, University College Cork, Cork, Ireland
| | - Rachel Shanahan
- School of Chemistry and Analytical and Biological Chemistry Research Facility, University College Cork, Cork, Ireland
| | - Rafael Cano
- School of Chemistry and Analytical and Biological Chemistry Research Facility, University College Cork, Cork, Ireland
| | - Gerard P McGlacken
- SSPC, Synthesis and Solid State Pharmaceutical Centre, Ireland.,School of Chemistry and Analytical and Biological Chemistry Research Facility, University College Cork, Cork, Ireland
| | - Claudia Serra
- CIIMAR, -Centro Interdisciplinar de Investigação Marinha e Ambiental University of Porto, Porto Matosinhos, Portugal
| | - Fergal O'Gara
- BIOMERIT Research Centre, School of Microbiology, University College Cork, Cork, Ireland.,Telethon Kids Institute, Perth Children's Hospital, PerthWA 6009, Australia.,SSPC, Synthesis and Solid State Pharmaceutical Centre, Ireland.,School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, PerthWA, Australia
| | - F Jerry Reen
- School of Microbiology, University College Cork, Cork, Ireland
| |
Collapse
|
4
|
Burkholderia thailandensis Methylated Hydroxyalkylquinolines: Biosynthesis and Antimicrobial Activity in Cocultures. Appl Environ Microbiol 2020; 86:AEM.01452-20. [PMID: 33008823 DOI: 10.1128/aem.01452-20] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 09/15/2020] [Indexed: 02/04/2023] Open
Abstract
The bacterium Burkholderia thailandensis produces an arsenal of secondary metabolites that have diverse structures and roles in the ecology of this soil-dwelling bacterium. In coculture experiments, B. thailandensis strain E264 secretes an antimicrobial that nearly eliminates another soil bacterium, Bacillus subtilis strain 168. To identify the antimicrobial, we used a transposon mutagenesis approach. This screen identified antimicrobial-defective mutants with insertions in the hmqA, hmqC, and hmqF genes involved in biosynthesis of a family of 2-alkyl-4(1H)-quinolones called 4-hydroxy-3-methyl-2-alkenylquinolines (HMAQs), which are closely related to the Pseudomonas aeruginosa 4-hydroxy-2-alkylquinolines (HAQs). Insertions also occurred in the previously uncharacterized gene BTH_II1576 ("hmqL"). The results confirm that BTH_II1576 is involved in generating N-oxide derivatives of HMAQs (HMAQ-NOs). Synthetic HMAQ-NO is active against B. subtilis 168, showing ∼50-fold more activity than HMAQ. Both the methyl group and the length of the carbon side chain account for the high activity of HMAQ-NO. The results provide new information on the biosynthesis and activities of HMAQs and reveal new insight into how these molecules might be important for the ecology of B. thailandensis IMPORTANCE The soil bacterium Burkholderia thailandensis produces 2-alkyl-4(1H)-quinolones that are mostly methylated 4-hydroxyalkenylquinolines, a family of relatively unstudied metabolites similar to molecules also synthesized by Pseudomonas aeruginosa Several of the methylated 4-hydroxyalkenylquinolines have antimicrobial activity against other species. We show that Bacillus subtilis strain 168 is particularly susceptible to N-oxidated methylalkenylquinolines (HMAQ-NOs). We confirmed that HMAQ-NO biosynthesis requires the previously unstudied protein HmqL. These results provide new information about the biology of 2-alkyl-4(1H)-quinolones, particularly the methylated 4-hydroxyalkenylquinolines, which are unique to B. thailandensis This study also has importance for understanding B. thailandensis secondary metabolites and has implications for potential therapeutic development.
Collapse
|
5
|
Oppong-Quaicoe A, DeBoef B. FeCl 2-Mediated Rearrangement of Allylic Alcohols. ACS OMEGA 2019; 4:6077-6083. [PMID: 31459755 PMCID: PMC6648291 DOI: 10.1021/acsomega.9b00163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 02/26/2019] [Indexed: 06/10/2023]
Abstract
A mild, one-pot procedure to produce 3-substituted allylic alcohols from α,β-unsaturated ketones is described. The addition of an organolithium nucleophile produces a tertiary allylic alcohol as an intermediate, which undergoes a 1,3-OH-migration assisted by FeCl2. The proposed mechanism indicates that a syn-facial migration occurs for the major product. Yields as high as 98% for the one-pot reaction are reported.
Collapse
|
6
|
Peczkowski GR, Craven PGE, Stead D, Simpkins NS. 2,7-Diazabicyclo[2.2.1]heptanes: novel asymmetric access and controlled bridge-opening. Chem Commun (Camb) 2019; 55:4214-4217. [DOI: 10.1039/c8cc10263e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Organocatalysed asymmetric Michael additions of substituted triketopiperazines to enones afford products in high yield and enantiomeric ratio (er). Further modification delivers products possessing natural product (NP) scaffolds including diazabicyclo[2.2.1]heptane, prolinamide and harmicine.
Collapse
Affiliation(s)
| | | | - Darren Stead
- Medicinal Chemistry, Oncology, IMED Biotech Unit
- Cambridge
- UK
| | | |
Collapse
|
7
|
Balkenhohl M, Heinz B, Abegg T, Knochel P. Amination of Phosphorodiamidate-Substituted Pyridines and Related N-Heterocycles with Magnesium Amides. Org Lett 2018; 20:8057-8060. [PMID: 30511876 DOI: 10.1021/acs.orglett.8b03698] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The amination of various phosphorodiamidate-substituted pyridines, quinolines, and quinoxaline with magnesium amides R2NMgCl·LiCl proceeds at room temperature within 8 h. Several pharmaceutically active amines were suitable substrates for this amination procedure, and also the antihistaminic tripelennamine was prepared. Additionally, several heterocyclic phosphorodiamidates underwent directed ortho-metalation (D oM) using TMPMgCl·LiCl (TMP = 2,2,6,6-tetramethylpiperidyl) or TMP2Mg·2LiCl, followed by electrophilic functionalization prior to the amination step, which led to ortho-functionalized aminated N-heterocycles.
Collapse
Affiliation(s)
- Moritz Balkenhohl
- Department of Chemistry , Ludwig-Maximilians-Universität München , Butenandtstr. 5-13, Haus F , 81377 Munich , Germany
| | - Benjamin Heinz
- Department of Chemistry , Ludwig-Maximilians-Universität München , Butenandtstr. 5-13, Haus F , 81377 Munich , Germany
| | - Thomas Abegg
- Department of Chemistry , Ludwig-Maximilians-Universität München , Butenandtstr. 5-13, Haus F , 81377 Munich , Germany
| | - Paul Knochel
- Department of Chemistry , Ludwig-Maximilians-Universität München , Butenandtstr. 5-13, Haus F , 81377 Munich , Germany
| |
Collapse
|
8
|
Geddis SM, Coroama T, Forrest S, Hodgkinson JT, Welch M, Spring DR. Synthesis and biological evaluation of 1,2-disubsubstituted 4-quinolone analogues of Pseudonocardia sp. natural products. Beilstein J Org Chem 2018; 14:2680-2688. [PMID: 30410629 PMCID: PMC6204808 DOI: 10.3762/bjoc.14.245] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 10/10/2018] [Indexed: 11/23/2022] Open
Abstract
A series of analogues of Pseudonocardia sp. natural products were synthesized, which have been reported to possess potent antibacterial activity against Helicobacter pylori and induce growth defects in Escherichia coli and Staphylococcus aureus. Taking inspiration from a methodology used in our total synthesis of natural products, we applied this methodology to access analogues possessing bulky N-substituents, traditionally considered to be challenging scaffolds. Screening of the library provided valuable insights into the structure-activity relationship of the bacterial growth defects, and suggested that selectivity between bacterial species should be attainable. Furthermore, a structurally related series of analogues was observed to inhibit production of the virulence factor pyocyanin in the human pathogen Pseudomonas aeruginosa, which may be a result of their similarity to the Pseudomonas quinolone signal (PQS) quorum sensing autoinducer. This provided new insights regarding the effect of N-substitution in PQS analogues, which has been hitherto underexplored.
Collapse
Affiliation(s)
- Stephen M Geddis
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Teodora Coroama
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Suzanne Forrest
- Department of Biochemistry, University of Cambridge, 80 Tennis Road, Cambridge, CB2 1GA, UK
| | - James T Hodgkinson
- Leicester Institute of Structural and Chemical Biology, and Department of Chemistry, University of Leicester, George Porter Building, University Road, Leicester, LE1 7RH, UK
| | - Martin Welch
- Department of Biochemistry, University of Cambridge, 80 Tennis Road, Cambridge, CB2 1GA, UK
| | - David R Spring
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| |
Collapse
|
9
|
Ji X, Li D, Wang Z, Tan M, Huang H, Deng GJ. Visible Light-Induced Aerobic Oxidation of Indoles: One-Pot Formation of 4-Quinolones at Room Temperature. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800036] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Xiaochen Ji
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education; College of Chemistry; Xiangtan University; Xiangtan 411105 China
| | - Dongdong Li
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education; College of Chemistry; Xiangtan University; Xiangtan 411105 China
| | - Zhongzhen Wang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education; College of Chemistry; Xiangtan University; Xiangtan 411105 China
| | - Muyun Tan
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education; College of Chemistry; Xiangtan University; Xiangtan 411105 China
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education; College of Chemistry; Xiangtan University; Xiangtan 411105 China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education; College of Chemistry; Xiangtan University; Xiangtan 411105 China
| |
Collapse
|
10
|
Huang PQ, Fan T. Intramolecular Keto Lactam Condensation: A Convenient and Straightforward Approach to Bicyclic Vinylogous Lactams. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701060] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Pei-Qiang Huang
- Department of Chemistry and The Key Laboratory for Chemical Biology of Fujian Province; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; 300071 Tianjin P. R. China
| | - Ting Fan
- Department of Chemistry and The Key Laboratory for Chemical Biology of Fujian Province; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials); College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
| |
Collapse
|
11
|
Bandi M, Reddy CR. Diversity-oriented Multicomponent Synthesis of Bisquinolones under Green Conditions. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Madhu Bandi
- Jawaharlal Nehru Technological University; Kakinada AP India
- Department of Chemistry; Jawaharlal Nehru Technological University Hyderabad College of Engineering; Kukatpally Hyderabad TS 500 085 India
| | - Ch.Venkata Ramana Reddy
- Department of Chemistry; Jawaharlal Nehru Technological University Hyderabad College of Engineering; Kukatpally Hyderabad TS 500 085 India
| |
Collapse
|