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Bhagwat AC, Saroj SD. Polyamine as a microenvironment factor in resistance to antibiotics. Crit Rev Microbiol 2024; 50:504-513. [PMID: 37339480 DOI: 10.1080/1040841x.2023.2223277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 04/30/2023] [Accepted: 06/05/2023] [Indexed: 06/22/2023]
Abstract
One of the main issues in modern medicine is the decrease in the efficacy of antibiotic therapy against resistant microorganisms. The advent of antimicrobial resistance has added significantly to the impact of infectious diseases, in number of infections, as well as added healthcare costs. The development of antibiotic tolerance and resistance is influenced by a variety of environmental variables, and it is important to identify these environmental factors as part of any strategy for combating antibiotic resistance. The review aims to emphasize that biogenic polyamines are one of such environmental cues that impacts the antibiotic resistance in bacteria. The biogenic polyamines can help bacteria acquire resistance to antibiotics either by regulating the level of number of porin channels in the outer membrane, by modifying the outer membrane liposaccharides or by protecting macromolecule from antibiotic stress. Thus, understanding the way polyamines function in bacteria can thus be beneficial while designing the drugs to combat diseases.
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Affiliation(s)
- Amrita C Bhagwat
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune, Maharashtra, India
| | - Sunil D Saroj
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune, Maharashtra, India
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Voser TM, Hayton JB, Prebble DW, Jin J, Grant G, Ekins MG, Carroll AR. Amphiphilic Polyamine α-Synuclein Aggregation Inhibitors from the Sponge Aaptos lobata. JOURNAL OF NATURAL PRODUCTS 2023; 86:475-481. [PMID: 36795859 DOI: 10.1021/acs.jnatprod.2c01125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Bioassay-guided investigation of the sponge Aaptos lobata resulted in the isolation and identification of two new amphiphilic polyamines, aaptolobamines A (1) and B (2). Their structures were determined through analysis of NMR and MS data. MS analysis also indicated that A. lobata contained a complex mixture of aaptolobamine homologues. Both aaptolobamines A (1) and B (2) show broad bioactivity, including cytotoxicity against cancer cell lines, moderate antimicrobial activity against a methicillin-resistant strain of Staphylococcus aureus, and weak activity against a Pseudomonas aeruginosa strain. The mixtures of aaptolobamine homologues were shown to contain compounds that bind to the Parkinson's disease associated amyloid protein α-synuclein and inhibit its aggregation.
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Affiliation(s)
- Tanja M Voser
- School of Environment and Science, Griffith University (Gold Coast Campus), Parklands Drive, Southport, QLD 4222, Australia
- Griffith Institute for Drug Discovery, Griffith University (Brisbane Innovation Park), Don Young Road, Nathan, QLD 4111, Australia
| | - Joshua B Hayton
- School of Environment and Science, Griffith University (Gold Coast Campus), Parklands Drive, Southport, QLD 4222, Australia
- Griffith Institute for Drug Discovery, Griffith University (Brisbane Innovation Park), Don Young Road, Nathan, QLD 4111, Australia
| | - Dale W Prebble
- School of Environment and Science, Griffith University (Gold Coast Campus), Parklands Drive, Southport, QLD 4222, Australia
- Griffith Institute for Drug Discovery, Griffith University (Brisbane Innovation Park), Don Young Road, Nathan, QLD 4111, Australia
| | - Ju Jin
- School of Pharmacy and Medical Sciences, Griffith University, Parklands Drive, Southport, QLD 4222, Australia
| | - Gary Grant
- School of Pharmacy and Medical Sciences, Griffith University, Parklands Drive, Southport, QLD 4222, Australia
| | | | - Anthony R Carroll
- School of Environment and Science, Griffith University (Gold Coast Campus), Parklands Drive, Southport, QLD 4222, Australia
- Griffith Institute for Drug Discovery, Griffith University (Brisbane Innovation Park), Don Young Road, Nathan, QLD 4111, Australia
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