1
|
Li S, Wang Z, Song S, Tang Y, Zhou J, Liu X, Zhang X, Chang M, Wang K, Peng Y. Membrane-Active All-Hydrocarbon-Stapled α-Helical Amphiphilic Tat Peptides: Broad-Spectrum Antibacterial Activity and Low Incidence of Drug Resistance. ACS Infect Dis 2024; 10:1839-1855. [PMID: 38725407 DOI: 10.1021/acsinfecdis.4c00173] [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] [Indexed: 06/13/2024]
Abstract
Multidrug resistance against conventional antibiotics has dramatically increased the difficulty of treatment and accelerated the need for novel antibacterial agents. The peptide Tat (47-57) is derived from the transactivating transcriptional activator of human immunodeficiency virus 1, which is well-known as a cell-penetrating peptide in mammalian cells. However, it is also reported that the Tat peptide (47-57) has antifungal activity. In this study, a series of membrane-active hydrocarbon-stapled α-helical amphiphilic peptides were synthesized and evaluated as antibacterial agents against Gram-positive and Gram-negative bacteria, including multidrug-resistant strains. The impact of hydrocarbon staple, the position of aromatic amino acid residue in the hydrophobic face, the various types of aromatic amino acids, and the hydrophobicity on bioactivity were also investigated and discussed in this study. Among those synthesized peptides, analogues P3 and P10 bearing a l-2-naphthylalanine (Φ) residue at the first position and a Tyr residue at the eighth position demonstrated the highest antimicrobial activity and negligible hemolytic toxicity. Notably, P3 and P10 showed obviously enhanced antimicrobial activity against multidrug-resistant bacteria, low drug resistance, high cell selectivity, extended half-life in plasma, and excellent performance against biofilm. The antibacterial mechanisms of P3 and P10 were also preliminarily investigated in this effort. In conclusion, P3 and P10 are promising antimicrobial alternatives for the treatment of the antimicrobial-resistance crisis.
Collapse
Affiliation(s)
- Shu Li
- Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
- Key Laboratory of Xinjiang Endemic Phytomedicine Resources Ministry of Education, Shihezi University College of Pharmacy, Shihezi 832003, Xinjiang, P. R. China
| | - Zhaopeng Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, P. R. China
| | - Shibo Song
- Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yuanyuan Tang
- Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jingjing Zhou
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiaojing Liu
- Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Xingjiao Zhang
- Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Min Chang
- Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Kairong Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yali Peng
- Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| |
Collapse
|
2
|
Agadi N, Maity A, Jha AK, Chakrabarti R, Kumar A. Distinct mode of membrane interaction and disintegration by diverse class of antimicrobial peptides. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2022; 1864:184047. [PMID: 36100074 DOI: 10.1016/j.bbamem.2022.184047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 08/18/2022] [Accepted: 09/06/2022] [Indexed: 12/29/2022]
Abstract
The exploitation of conventional antibiotics in conjunction with the adeptness of microbes has led to the emergence of multi-drug-resistant pathogens. This has posed a severe threat to combating life-threatening infectious diseases. Antimicrobial peptides (AMP), which are considered to be the first line of defense in all living organisms, are being developed for therapeutic use. Herein, we determined the NMR solution structure of Rhesus macaque Myeloid Alpha Defensin-4 (RMAD4), a defensin AMP. Additionally, the distinct modes of membrane perturbation for two structurally dissimilar classes of AMPs was studied using biophysical methods namely, Solid-state 31P NMR, DSC and cryo-TEM. The cathelicidin - Bovine myeloid antimicrobial peptide (BMAP-28 (1-18)), which adopts a helical conformation, and the defensin RMAD4 peptide that natively folds to form β-sheets appeared to engage differently with the bacterial membrane. The helical BMAP-28 (1-18) peptide initiates lipid segregation and membrane thinning followed by pore formation, while the β-stranded RMAD4 peptide demonstrates fragmentation of the bilayer by the carpet or detergent-like mechanism of action. Molecular dynamics studies sufficiently corroborated these findings. The structure and mechanism of action of the AMPs studied using experimental and computational approaches are believed to help in providing a platform for the rational design of new competent and cost-effective antimicrobial peptides for therapeutic applications.
Collapse
Affiliation(s)
- Nutan Agadi
- Centre for Research in Nanotechnology and Science (CRNTS), Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Atanu Maity
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Akash Kumar Jha
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Rajarshi Chakrabarti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Ashutosh Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
| |
Collapse
|
3
|
Analysis of Antibacterial Action of Mammalian Host-Defense Cathelicidins and Induction of Resistance to Them in MβL-Producing Pseudomonas aeruginosa. Bull Exp Biol Med 2022; 172:447-452. [PMID: 35175466 DOI: 10.1007/s10517-022-05411-8] [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: 06/08/2021] [Indexed: 10/19/2022]
Abstract
Recombinant analogs of a number of natural host-defense mammalian cathelicidins were obtained and predominant mechanism of their antibacterial action was studied. The ability of cathelicidins to suppress the growth of Pseudomonas aeruginosa producing metallo-β-lactamases (MβL) was studied, and the possibility of appearance of cathelicidin-resistant bacteria was evaluated. Among peptides with different structures and mechanisms of action, only the strains resistant to ChMAP-28 were not obtained, which indicated minimum risk of the development of natural resistance to this cathelicidin. High antibacterial activity, wide spectrum of action, and the absence of cross-resistance effects allow considering ChMAP-28 peptide as a candidate to be developed further as a therapeutic agent against MβL-producing bacteria.
Collapse
|
4
|
How to Combat Gram-Negative Bacteria Using Antimicrobial Peptides: A Challenge or an Unattainable Goal? Antibiotics (Basel) 2021; 10:antibiotics10121499. [PMID: 34943713 PMCID: PMC8698890 DOI: 10.3390/antibiotics10121499] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 11/29/2021] [Accepted: 12/02/2021] [Indexed: 12/16/2022] Open
Abstract
Antimicrobial peptides (AMPs) represent a promising and effective alternative for combating pathogens, having some advantages compared to conventional antibiotics. However, AMPs must also contend with complex and specialised Gram-negative bacteria envelops. The variety of lipopolysaccharide and phospholipid composition in Gram-negative bacteria strains and species are decisive characteristics regarding their susceptibility or resistance to AMPs. Such biological and structural barriers have created delays in tuning AMPs to deal with Gram-negative bacteria. This becomes even more acute because little is known about the interaction AMP–Gram-negative bacteria and/or AMPs’ physicochemical characteristics, which could lead to obtaining selective molecules against Gram-negative bacteria. As a consequence, available AMPs usually have highly associated haemolytic and/or cytotoxic activity. Only one AMP has so far been FDA approved and another two are currently in clinical trials against Gram-negative bacteria. Such a pessimistic panorama suggests that efforts should be concentrated on the search for new molecules, designs and strategies for combating infection caused by this type of microorganism. This review has therefore been aimed at describing the currently available AMPs for combating Gram-negative bacteria, exploring the characteristics of these bacteria’s cell envelop hampering the development of new AMPs, and offers a perspective regarding the challenges for designing new AMPs against Gram-negative bacteria.
Collapse
|
5
|
Aronica PGA, Reid LM, Desai N, Li J, Fox SJ, Yadahalli S, Essex JW, Verma CS. Computational Methods and Tools in Antimicrobial Peptide Research. J Chem Inf Model 2021; 61:3172-3196. [PMID: 34165973 DOI: 10.1021/acs.jcim.1c00175] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The evolution of antibiotic-resistant bacteria is an ongoing and troubling development that has increased the number of diseases and infections that risk going untreated. There is an urgent need to develop alternative strategies and treatments to address this issue. One class of molecules that is attracting significant interest is that of antimicrobial peptides (AMPs). Their design and development has been aided considerably by the applications of molecular models, and we review these here. These methods include the use of tools to explore the relationships between their structures, dynamics, and functions and the increasing application of machine learning and molecular dynamics simulations. This review compiles resources such as AMP databases, AMP-related web servers, and commonly used techniques, together aimed at aiding researchers in the area toward complementing experimental studies with computational approaches.
Collapse
Affiliation(s)
- Pietro G A Aronica
- Bioinformatics Institute at A*STAR (Agency for Science, Technology and Research), 30 Biopolis Street, #07-01 Matrix, Singapore 138671
| | - Lauren M Reid
- Bioinformatics Institute at A*STAR (Agency for Science, Technology and Research), 30 Biopolis Street, #07-01 Matrix, Singapore 138671.,School of Chemistry, University of Southampton, Highfield Southampton, Hampshire, U.K. SO17 1BJ.,MedChemica Ltd, Alderley Park, Macclesfield, Cheshire, U.K. SK10 4TG
| | - Nirali Desai
- Bioinformatics Institute at A*STAR (Agency for Science, Technology and Research), 30 Biopolis Street, #07-01 Matrix, Singapore 138671.,Division of Biological and Life Sciences, Ahmedabad University, Central Campus, Ahmedabad, Gujarat, India 380009
| | - Jianguo Li
- Bioinformatics Institute at A*STAR (Agency for Science, Technology and Research), 30 Biopolis Street, #07-01 Matrix, Singapore 138671.,Singapore Eye Research Institute, 20 College Road Discovery Tower, Singapore 169856
| | - Stephen J Fox
- Bioinformatics Institute at A*STAR (Agency for Science, Technology and Research), 30 Biopolis Street, #07-01 Matrix, Singapore 138671
| | - Shilpa Yadahalli
- Bioinformatics Institute at A*STAR (Agency for Science, Technology and Research), 30 Biopolis Street, #07-01 Matrix, Singapore 138671
| | - Jonathan W Essex
- School of Chemistry, University of Southampton, Highfield Southampton, Hampshire, U.K. SO17 1BJ
| | - Chandra S Verma
- Bioinformatics Institute at A*STAR (Agency for Science, Technology and Research), 30 Biopolis Street, #07-01 Matrix, Singapore 138671.,Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, 117543 Singapore.,School of Biological Sciences, Nanyang Technological University, 50 Nanyang Drive, 637551 Singapore
| |
Collapse
|
6
|
Martins IBS, Viegas TG, Dos Santos Alvares D, de Souza BM, Palma MS, Ruggiero Neto J, de Araujo AS. The effect of acidic pH on the adsorption and lytic activity of the peptides Polybia-MP1 and its histidine-containing analog in anionic lipid membrane: a biophysical study by molecular dynamics and spectroscopy. Amino Acids 2021; 53:753-767. [PMID: 33890127 DOI: 10.1007/s00726-021-02982-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 04/12/2021] [Indexed: 01/09/2023]
Abstract
Antimicrobial peptides (AMPs) are part of the innate immune system of many species. AMPs are short sequences rich in charged and non-polar residues. They act on the lipid phase of the plasma membrane without requiring membrane receptors. Polybia-MP1 (MP1), extracted from a native wasp, is a broad-spectrum bactericide, an inhibitor of cancer cell proliferation being non-hemolytic and non-cytotoxic. MP1 mechanism of action and its adsorption mode is not yet completely known. Its adsorption to lipid bilayer and lytic activity is most likely dependent on the ionization state of its two acidic and three basic residues and consequently on the bulk pH. Here we investigated the effect of bulk acidic (pH 5.5) and neutral pH (7.4) solution on the adsorption, insertion, and lytic activity of MP1 and its analog H-MP1 to anionic (7POPC:3POPG) model membrane. H-MP1 is a synthetic analog of MP1 with lysines replaced by histidines. Bulk pH changes could modulate this peptide efficiency. The combination of different experimental techniques and molecular dynamics (MD) simulations showed that the adsorption, insertion, and lytic activity of H-MP1 are highly sensitive to bulk pH in opposition to MP1. The atomistic details, provided by MD simulations, showed peptides contact their N-termini to the bilayer before the insertion and then lay parallel to the bilayer. Their hydrophobic faces inserted into the acyl chain phase disturb the lipid-packing.
Collapse
Affiliation(s)
- Ingrid Bernardes Santana Martins
- Department of Physics, IBILCE, UNESP-São Paulo State University, Cristóvão Colombo, 2265-Jardim Nazareth, São José do Rio Preto, SP, 15054-000, Brazil
| | - Taisa Giordano Viegas
- Department of Physics, IBILCE, UNESP-São Paulo State University, Cristóvão Colombo, 2265-Jardim Nazareth, São José do Rio Preto, SP, 15054-000, Brazil
| | - Dayane Dos Santos Alvares
- Department of Physics, IBILCE, UNESP-São Paulo State University, Cristóvão Colombo, 2265-Jardim Nazareth, São José do Rio Preto, SP, 15054-000, Brazil
| | - Bibiana Monson de Souza
- Department of Basic and Applied Biology, Institute of Biosciences, UNESP-São Paulo State University, Rio Claro, SP, Brazil
| | - Mário Sérgio Palma
- Department of Basic and Applied Biology, Institute of Biosciences, UNESP-São Paulo State University, Rio Claro, SP, Brazil
| | - João Ruggiero Neto
- Department of Physics, IBILCE, UNESP-São Paulo State University, Cristóvão Colombo, 2265-Jardim Nazareth, São José do Rio Preto, SP, 15054-000, Brazil.
| | - Alexandre Suman de Araujo
- Department of Physics, IBILCE, UNESP-São Paulo State University, Cristóvão Colombo, 2265-Jardim Nazareth, São José do Rio Preto, SP, 15054-000, Brazil.
| |
Collapse
|
7
|
Alvares DDS, Martins IBS, Viegas TG, Palma MS, de Araujo AS, de Carvalho SJ, Ruggiero Neto J. Modulatory Effects of Acidic pH and Membrane Potential on the Adsorption of pH-Sensitive Peptides to Anionic Lipid Membrane. MEMBRANES 2021; 11:membranes11050307. [PMID: 33922150 PMCID: PMC8143466 DOI: 10.3390/membranes11050307] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/13/2021] [Accepted: 04/17/2021] [Indexed: 11/16/2022]
Abstract
Anionic lipid membrane electrostatic potential and solution pH can influence cationic peptide adsorption to these bilayers, especially those containing simultaneously acid and basic residues. Here, we investigate the effects of the pH solution on MP1 (IDWKKLLDAAKQIL-NH2) adsorption to anionic (7POPC:3POPG) lipid vesicles in comparison to its analog H-MP1, with histidines substituting lysines. We used the association of adsorption isotherms and constant pH molecular dynamic simulations (CpHMD) to explore the effects of membrane potential and pH on peptides' adsorption on this lipid membrane. We analyzed the fluorescence and zeta potential adsorption isotherms using the Gouy-Chapman theory. In CpHMD simulations for the peptides in solution and adsorbed on the lipid bilayer, we used the conformations obtained by conventional MD simulations at a μs timescale. Non-equilibrium Monte Carlo simulations provided the protonation states of acidic and basic residues. CpHMD showed average pKa shifts of two to three units, resulting in a higher net charge for the analog than for MP1, strongly modulating the peptide adsorption. The fractions of the protonation of acidic and basic residues and the peptides' net charges obtained from the analysis of the adsorption isotherms were in reasonable agreement with those from CpHMD. MP1 adsorption was almost insensitive to solution pH. H-MP1 was much more sensitive to partitioning, at acidic pH, with an affinity ten times higher than in neutral ones.
Collapse
Affiliation(s)
- Dayane dos Santos Alvares
- IBILCE, Department of Physics, UNESP—São Paulo State University, São José do Rio Preto 15054-000, SP, Brazil; (D.d.S.A.); (I.B.S.M.); (T.G.V.); (A.S.d.A.); (S.J.d.C.)
| | - Ingrid Bernardes Santana Martins
- IBILCE, Department of Physics, UNESP—São Paulo State University, São José do Rio Preto 15054-000, SP, Brazil; (D.d.S.A.); (I.B.S.M.); (T.G.V.); (A.S.d.A.); (S.J.d.C.)
| | - Taisa Giordano Viegas
- IBILCE, Department of Physics, UNESP—São Paulo State University, São José do Rio Preto 15054-000, SP, Brazil; (D.d.S.A.); (I.B.S.M.); (T.G.V.); (A.S.d.A.); (S.J.d.C.)
| | - Mario Sergio Palma
- Institute of Biosciences, Department of Basic and Applied Biology, UNESP—São Paulo State University, Rio Claro 13506-752, SP, Brazil;
| | - Alexandre Suman de Araujo
- IBILCE, Department of Physics, UNESP—São Paulo State University, São José do Rio Preto 15054-000, SP, Brazil; (D.d.S.A.); (I.B.S.M.); (T.G.V.); (A.S.d.A.); (S.J.d.C.)
| | - Sidney Jurado de Carvalho
- IBILCE, Department of Physics, UNESP—São Paulo State University, São José do Rio Preto 15054-000, SP, Brazil; (D.d.S.A.); (I.B.S.M.); (T.G.V.); (A.S.d.A.); (S.J.d.C.)
| | - João Ruggiero Neto
- IBILCE, Department of Physics, UNESP—São Paulo State University, São José do Rio Preto 15054-000, SP, Brazil; (D.d.S.A.); (I.B.S.M.); (T.G.V.); (A.S.d.A.); (S.J.d.C.)
- Correspondence:
| |
Collapse
|
8
|
Li S, Wang Y, Xue Z, Jia Y, Li R, He C, Chen H. The structure-mechanism relationship and mode of actions of antimicrobial peptides: A review. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.01.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
9
|
Zhu N, Zhong C, Liu T, Zhu Y, Gou S, Bao H, Yao J, Ni J. Newly designed antimicrobial peptides with potent bioactivity and enhanced cell selectivity prevent and reverse rifampin resistance in Gram-negative bacteria. Eur J Pharm Sci 2021; 158:105665. [DOI: 10.1016/j.ejps.2020.105665] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 11/18/2020] [Accepted: 11/26/2020] [Indexed: 01/10/2023]
|
10
|
Azmi S, Verma NK, Tripathi JK, Srivastava S, Verma DP, Ghosh JK. Introduction of cell‐selectivity in bovine cathelicidin
BMAP
‐28 by exchanging heptadic isoleucine with the adjacent proline at a non‐heptadic position. Pept Sci (Hoboken) 2020. [DOI: 10.1002/pep2.24207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Sarfuddin Azmi
- Molecular and Structural Biology Division CSIR‐CDRI Lucknow India
- Scientific Research Centre Prince Sultan Military Medical City, Sulaimaniyah Riyadh Saudi Arabia
| | | | | | | | | | | |
Collapse
|
11
|
Yang S, Dong Y, Aweya JJ, Li J, Chen X, Zhang Y, Liu GM. A hemoglobin-derived antimicrobial peptide, LCH4, from the large yellow croaker (Larimichthys crocea) with potential use as a food preservative. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109656] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
12
|
Shorter Antibacterial Peptide Having High Selectivity for E. coli Membranes and Low Potential for Inducing Resistance. Microorganisms 2020; 8:microorganisms8060867. [PMID: 32521823 PMCID: PMC7356157 DOI: 10.3390/microorganisms8060867] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/11/2020] [Accepted: 05/13/2020] [Indexed: 12/11/2022] Open
Abstract
Antimicrobial peptides (AMPs) have been recognised as a significant therapeutic option for mitigating resistant microbial infections. It has been found recently that Plasmodium falciparum-derived, 20 residue long, peptide 35409 had antibacterial and haemolytic activity, making it an AMP having reduced selectivity, and suggesting that it should be studied more extensively for obtaining new AMPs having activity solely targeting the bacterial membrane. Peptide 35409 was thus used as template for producing short synthetic peptides (<20 residues long) and evaluating their biological activity and relevant physicochemical characteristics for therapeutic use. Four of the sixteen short peptides evaluated here had activity against E. coli without any associated haemolytic effects. The 35409-1 derivative (17 residues long) had the best therapeutic characteristics as it had high selectivity for bacterial cells, stability in the presence of human sera, activity against E. coli multiresistant clinical isolates and was shorter than the original sequence. It had a powerful membranolytic effect and low potential for inducing resistance in bacteria. This peptide’s characteristics highlighted its potential as an alternative for combating infection caused by E. coli multiresistant bacteria and/or for designing new AMPs.
Collapse
|
13
|
Munusamy S, Conde R, Bertrand B, Munoz-Garay C. Biophysical approaches for exploring lipopeptide-lipid interactions. Biochimie 2020; 170:173-202. [PMID: 31978418 PMCID: PMC7116911 DOI: 10.1016/j.biochi.2020.01.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 01/19/2020] [Indexed: 02/07/2023]
Abstract
In recent years, lipopeptides (LPs) have attracted a lot of attention in the pharmaceutical industry due to their broad-spectrum of antimicrobial activity against a variety of pathogens and their unique mode of action. This class of compounds has enormous potential for application as an alternative to conventional antibiotics and for pest control. Understanding how LPs work from a structural and biophysical standpoint through investigating their interaction with cell membranes is crucial for the rational design of these biomolecules. Various analytical techniques have been developed for studying intramolecular interactions with high resolution. However, these tools have been barely exploited in lipopeptide-lipid interactions studies. These biophysical approaches would give precise insight on these interactions. Here, we reviewed these state-of-the-art analytical techniques. Knowledge at this level is indispensable for understanding LPs activity and particularly their potential specificity, which is relevant information for safe application. Additionally, the principle of each analytical technique is presented and the information acquired is discussed. The key challenges, such as the selection of the membrane model are also been briefly reviewed. A brief overview of topics to understand the generalities of lipopeptide (LP) science. Main analytical techniques used to reveal the interaction and the distorting effect of LP on artificial membranes. Guidelines for selecting of the most adequate membrane models for the given analytical technique.
Collapse
Affiliation(s)
- Sathishkumar Munusamy
- Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Av. Universidad 2001, Col. Chamilpa, 62210, Cuernavaca, Mexico
| | - Renaud Conde
- Centro de Investigación Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico
| | - Brandt Bertrand
- Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Av. Universidad 2001, Col. Chamilpa, 62210, Cuernavaca, Mexico
| | - Carlos Munoz-Garay
- Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Av. Universidad 2001, Col. Chamilpa, 62210, Cuernavaca, Mexico.
| |
Collapse
|