1
|
Li X, Zhang L, Liu Z, Wang R, Jiao T. Recent progress in hydrogels combined with phototherapy for bacterial infection: A review. Int J Biol Macromol 2024; 274:133375. [PMID: 38914386 DOI: 10.1016/j.ijbiomac.2024.133375] [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: 01/10/2024] [Revised: 06/17/2024] [Accepted: 06/21/2024] [Indexed: 06/26/2024]
Abstract
Phototherapy has become one of the most effective antibacterial methods due to its associated lack of drug resistance and its good antibacterial effect. For the purpose of avoiding the aggregation and premature release of photosensitive/photothermal agents during phototherapy, they can be mixed into three-dimensional hydrogels. The combination of hydrogels and phototherapy combines the merits of both hydrogels and phototherapy, overcomes the disadvantages of traditional antibacterial methodologies, and has broad application prospects. This review presents recent advancements in phototherapeutic antibacterial hydrogels including photodynamic antibacterial hydrogels, photothermal antibacterial hydrogels, photodynamic and photothermal synergistic antibacterial hydrogels, and other synergistic antibacterial hydrogels involving phototherapy.
Collapse
Affiliation(s)
- Xinyu Li
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Nanobiotechnology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Yanshan University, Qinhuangdao 066004, PR China
| | - Lexin Zhang
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Nanobiotechnology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Yanshan University, Qinhuangdao 066004, PR China
| | - Zhiwei Liu
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Nanobiotechnology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Yanshan University, Qinhuangdao 066004, PR China.
| | - Ran Wang
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Nanobiotechnology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Yanshan University, Qinhuangdao 066004, PR China.
| | - Tifeng Jiao
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Nanobiotechnology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Yanshan University, Qinhuangdao 066004, PR China.
| |
Collapse
|
2
|
Zheng EJ, Valeri JA, Andrews IW, Krishnan A, Bandyopadhyay P, Anahtar MN, Herneisen A, Schulte F, Linnehan B, Wong F, Stokes JM, Renner LD, Lourido S, Collins JJ. Discovery of antibiotics that selectively kill metabolically dormant bacteria. Cell Chem Biol 2024; 31:712-728.e9. [PMID: 38029756 PMCID: PMC11031330 DOI: 10.1016/j.chembiol.2023.10.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 08/13/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023]
Abstract
There is a need to discover and develop non-toxic antibiotics that are effective against metabolically dormant bacteria, which underlie chronic infections and promote antibiotic resistance. Traditional antibiotic discovery has historically favored compounds effective against actively metabolizing cells, a property that is not predictive of efficacy in metabolically inactive contexts. Here, we combine a stationary-phase screening method with deep learning-powered virtual screens and toxicity filtering to discover compounds with lethality against metabolically dormant bacteria and favorable toxicity profiles. The most potent and structurally distinct compound without any obvious mechanistic liability was semapimod, an anti-inflammatory drug effective against stationary-phase E. coli and A. baumannii. Integrating microbiological assays, biochemical measurements, and single-cell microscopy, we show that semapimod selectively disrupts and permeabilizes the bacterial outer membrane by binding lipopolysaccharide. This work illustrates the value of harnessing non-traditional screening methods and deep learning models to identify non-toxic antibacterial compounds that are effective in infection-relevant contexts.
Collapse
Affiliation(s)
- Erica J Zheng
- Program in Chemical Biology, Harvard University, Cambridge, MA 02138, USA; Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Jacqueline A Valeri
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Institute for Medical Engineering & Science, Department of Biological Engineering, and Synthetic Biology Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Ian W Andrews
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Institute for Medical Engineering & Science, Department of Biological Engineering, and Synthetic Biology Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Aarti Krishnan
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Institute for Medical Engineering & Science, Department of Biological Engineering, and Synthetic Biology Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA
| | - Parijat Bandyopadhyay
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Institute for Medical Engineering & Science, Department of Biological Engineering, and Synthetic Biology Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Melis N Anahtar
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Institute for Medical Engineering & Science, Department of Biological Engineering, and Synthetic Biology Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Alice Herneisen
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA; Department of Biology, MIT, Cambridge, MA 02139, USA
| | - Fabian Schulte
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA
| | - Brooke Linnehan
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA
| | - Felix Wong
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Institute for Medical Engineering & Science, Department of Biological Engineering, and Synthetic Biology Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Jonathan M Stokes
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario L8N 3Z5, Canada
| | - Lars D Renner
- Leibniz Institute of Polymer Research and the Max Bergmann Center of Biomaterials, 01062 Dresden, Germany
| | - Sebastian Lourido
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA; Department of Biology, MIT, Cambridge, MA 02139, USA
| | - James J Collins
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Institute for Medical Engineering & Science, Department of Biological Engineering, and Synthetic Biology Center, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA; Harvard-MIT Program in Health Sciences and Technology, Cambridge, MA 02139, USA.
| |
Collapse
|
3
|
Fang P, Yu S, Ma X, Hou L, Li T, Gao K, Wang Y, Sun Q, Shang L, Liu Q, Nie M, Yang J. Applications of tandem mass spectrometry (MS/MS) in antimicrobial peptides field: Current state and new applications. Heliyon 2024; 10:e28484. [PMID: 38601527 PMCID: PMC11004759 DOI: 10.1016/j.heliyon.2024.e28484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/12/2024] Open
Abstract
Antimicrobial peptides (AMPs) constitute a group of small molecular peptides that exhibit a wide range of antimicrobial activity. These peptides are abundantly present in the innate immune system of various organisms. Given the rise of multidrug-resistant bacteria, microbiological studies have identified AMPs as potential natural antibiotics. In the context of antimicrobial resistance across various human pathogens, AMPs hold considerable promise for clinical applications. However, numerous challenges exist in the detection of AMPs, particularly by immunological and molecular biological methods, especially when studying of newly discovered AMPs in proteomics. This review outlines the current status of AMPs research and the strategies employed in their development, considering resent discoveries and methodologies. Subsequently, we focus on the advanced techniques of mass spectrometry for the quantification of AMPs in diverse samples, and analyzes their application, advantages, and limitations. Additionally, we propose suggestions for the future development of tandem mass spectrometry for the detection of AMPs.
Collapse
Affiliation(s)
- Panpan Fang
- Zhengzhou Key Laboratory of Children's Infection and Immunity, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, PR China
| | - Songlin Yu
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, 100730, PR China
| | - Xiaoli Ma
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, 100730, PR China
| | - Lian Hou
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, 100730, PR China
| | - Tiewei Li
- Zhengzhou Key Laboratory of Children's Infection and Immunity, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, PR China
| | - Kaijie Gao
- Zhengzhou Key Laboratory of Children's Infection and Immunity, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, PR China
| | - Yingyuan Wang
- Department of Neonatal Intensive Care Unit, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, PR China
| | - Qianqian Sun
- Zhengzhou Key Laboratory of Children's Infection and Immunity, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, PR China
| | - Lujun Shang
- Department of Laboratory Medicine, Guizhou Provincial People's Hospital, Guiyang, 550004, PR China
| | - Qianqian Liu
- Zhengzhou Key Laboratory of Children's Infection and Immunity, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, PR China
| | - Manjie Nie
- Zhengzhou Key Laboratory of Children's Infection and Immunity, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, PR China
| | - Junmei Yang
- Zhengzhou Key Laboratory of Children's Infection and Immunity, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, PR China
| |
Collapse
|
4
|
Firdous SO, Sagor MMH, Arafat MT. Advances in Transdermal Delivery of Antimicrobial Peptides for Wound Management: Biomaterial-Based Approaches and Future Perspectives. ACS APPLIED BIO MATERIALS 2023. [PMID: 37976446 DOI: 10.1021/acsabm.3c00731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Antimicrobial peptides (AMPs), distinguished by their cationic and amphiphilic nature, represent a critical frontier in the battle against antimicrobial resistance due to their potent antimicrobial activity and a broad spectrum of action. However, the clinical translation of AMPs faces hurdles, including their susceptibility to degradation, limited bioavailability, and the need for targeted delivery. Transdermal delivery has immense potential for optimizing AMP administration for wound management. Leveraging the skin's accessibility and barrier properties, transdermal delivery offers a noninvasive approach that can circumvent systemic side effects and ensure sustained release. Biomaterial-based delivery systems, encompassing nanofibers, hydrogels, nanoparticles, and liposomes, have emerged as key players in enhancing the efficacy of transdermal AMP delivery. These biomaterial carriers not only shield AMPs from enzymatic degradation but also provide controlled release mechanisms, thereby elevating stability and bioavailability. The synergistic interaction between the transdermal approach and biomaterial-facilitated formulations presents a promising strategy to overcome the multifaceted challenges associated with AMP delivery. Integrating advanced technologies and personalized medicine, this convergence allows the reimagining of wound care. This review amalgamates insights to propose a pathway where AMPs, transdermal delivery, and biomaterial innovation harmonize for effective wound management.
Collapse
Affiliation(s)
- Syeda Omara Firdous
- Department of Biomedical Engineering, Bangladesh University of Engineering and Technology (BUET), Dhaka 1205, Bangladesh
| | - Md Mehadi Hassan Sagor
- Department of Biomedical Engineering, Bangladesh University of Engineering and Technology (BUET), Dhaka 1205, Bangladesh
| | - M Tarik Arafat
- Department of Biomedical Engineering, Bangladesh University of Engineering and Technology (BUET), Dhaka 1205, Bangladesh
| |
Collapse
|
5
|
Kim EY, Kumar SD, Bang JK, Ajish C, Yang S, Ganbaatar B, Kim J, Lee CW, Cho SJ, Shin SY. Evaluation of deoxythymidine-based cationic amphiphiles as antimicrobial, antibiofilm, and anti-inflammatory agents. Int J Antimicrob Agents 2023; 62:106909. [PMID: 37419291 DOI: 10.1016/j.ijantimicag.2023.106909] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 06/14/2023] [Accepted: 06/30/2023] [Indexed: 07/09/2023]
Abstract
OBJECTIVES We recently designed a series of cationic deoxythymidine-based amphiphiles that mimic the cationic amphipathic structure of antimicrobial peptides (AMPs). Among these amphiphiles, ADG-2e and ADL-3e displayed the highest selectivity against bacterial cells. In this study, ADG-2e and ADL-3e were evaluated for their potential as novel classes of antimicrobial, antibiofilm, and anti-inflammatory agents. METHODS Minimum inhibitory concentrations of ADG-2e and ADL-3e against bacteria were determined using the broth microdilution method. Proteolytic resistance against pepsin, trypsin, α-chymotrypsin, and proteinase K was determined by radial diffusion and HPLC analysis. Biofilm activity was investigated using the broth microdilution and confocal microscopy. The antimicrobial mechanism was investigated by membrane depolarization, cell membrane integrity analysis, scanning electron microscopy (SEM), genomic DNA influence and genomic DNA binding assay. Synergistic activity was evaluated using checkerboard method. Anti-inflammatory activity was investigated using ELISA and RT-PCR. RESULTS ADG-2e and ADL-3e showed good resistance to physiological salts and human serum, and a low incidence of drug resistance. Moreover, they exhibit proteolytic resistance against pepsin, trypsin, α-chymotrypsin, and proteinase K. ADG-2e and ADL-3e were found to kill bacteria by an intracellular target mechanism and bacterial cell membrane-disrupting mechanism, respectively. Furthermore, ADG-2e and ADL-3e showed effective synergistic effects when combined with several conventional antibiotics against methicillin-resistant Staphylococcus aureus (MRSA) and multidrug-resistant Pseudomonas aeruginosa (MDRPA). Importantly, ADG-2e and ADL-3e not only suppressed MDRPA biofilm formation but also effectively eradicated mature MDRPA biofilms. Furthermore, ADG-2e and ADL-3e drastically decreased tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) gene expression and protein secretion in lipopolysaccharide (LPS)-stimulated macrophages, implying potent anti-inflammatory activity in LPS-induced inflammation. CONCLUSION Our findings suggest that ADG-2e and ADL-3e could be further developed as novel antimicrobial, antibiofilm, and anti-inflammatory agents to combat bacterial infections.
Collapse
Affiliation(s)
- Eun Young Kim
- Department of Cellular and Molecular Medicine, School of Medicine, Chosun University, Gwangju, Republic of Korea
| | - S Dinesh Kumar
- Department of Cellular and Molecular Medicine, School of Medicine, Chosun University, Gwangju, Republic of Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, Republic of Korea
| | - Chelladurai Ajish
- Department of Cellular and Molecular Medicine, School of Medicine, Chosun University, Gwangju, Republic of Korea
| | - Sungtae Yang
- Department of Microbiology, School of Medicine, Chosun University, Gwangju, Republic of Korea
| | | | - Jeongeun Kim
- Department of Chemistry, Chonnam National University, Gwangju, Republic of Korea
| | - Chul Won Lee
- Department of Chemistry, Chonnam National University, Gwangju, Republic of Korea
| | - Sung-Jin Cho
- Department of Biological Sciences and Biotechnology, College of Natural Sciences, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea.
| | - Song Yub Shin
- Department of Cellular and Molecular Medicine, School of Medicine, Chosun University, Gwangju, Republic of Korea.
| |
Collapse
|
6
|
Hao Y, Teng D, Mao R, Yang N, Wang J. Site Mutation Improves the Expression and Antimicrobial Properties of Fungal Defense. Antibiotics (Basel) 2023; 12:1283. [PMID: 37627703 PMCID: PMC10451632 DOI: 10.3390/antibiotics12081283] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/21/2023] [Accepted: 07/29/2023] [Indexed: 08/27/2023] Open
Abstract
Although antimicrobial peptides (AMPs) have highly desirable intrinsic characteristics in their commercial product development as new antimicrobials, the limitations of AMPs from experimental to scale development include the low oral bioavailability, and high production costs due to inadequate in vitro/in vivo gene expression- and low scale. Plectasin has good bactericidal activity against Staphylococcus and Streptococcus, and the selective bactericidal activity greatly reduces the damage to the micro-ecosystem when applied in vivo. However, its expression level was relatively low (748.63 mg/L). In view of these situations, this study will optimize and modify the structure of Plectasin, hoping to obtain candidates with high expression, no/low toxicity, and maintain desirable antibacterial activity. Through sequence alignment, Plectasin was used as a template to introduce the degenerate bases, and the screening library was constructed. After three different levels of screening, the candidate sequence PN7 was obtained, and its total protein yield in the supernatant was 5.53 g/L, with the highest value so far for the variants or constructs from the same ancestor source. PN7 had strong activity against several species of Gram-positive bacteria (MIC value range 1~16 μg/mL). It was relatively stable in various conditions in vitro; in addition, the peptide showed no toxicity to mice for 1 week after intraperitoneal injection. Meanwhile, PN7 kills Staphylococcus aureus ATCC 43300 with a mode of a quicker (>99% S. aureus was killed within 2 h, whereas vancomycin at 2× MIC was 8 h.) and longer PAE period. The findings indicate that PN7 may be a novel promising antimicrobial agent, and this study also provides a model or an example for the design, modification, or reconstruction of novel AMPs and their derivatives.
Collapse
Affiliation(s)
- Ya Hao
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing 100081, China
- Innovative Team of Antimicrobial Peptides and Alternatives to Antibiotics, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing 100081, China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Da Teng
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing 100081, China
- Innovative Team of Antimicrobial Peptides and Alternatives to Antibiotics, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing 100081, China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Ruoyu Mao
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing 100081, China
- Innovative Team of Antimicrobial Peptides and Alternatives to Antibiotics, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing 100081, China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Na Yang
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing 100081, China
- Innovative Team of Antimicrobial Peptides and Alternatives to Antibiotics, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing 100081, China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Jianhua Wang
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing 100081, China
- Innovative Team of Antimicrobial Peptides and Alternatives to Antibiotics, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing 100081, China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| |
Collapse
|
7
|
Jin Y, Yang N, Teng D, Hao Y, Mao R, Wang J. Molecular Modification of Kex2 P1' Site Enhances Expression and Druggability of Fungal Defensin. Antibiotics (Basel) 2023; 12:antibiotics12040786. [PMID: 37107149 PMCID: PMC10135057 DOI: 10.3390/antibiotics12040786] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/14/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
Pichia pastoris is the widely used expression system for producing recombinant secretory proteins. It is known that Kex2 protease plays a vital role in the process of protein secretion, in which the P1' site affects its cleavage efficiency. To enhance the expression level of fungal defensin-derived peptide NZ2114, this work attempts to optimize the P1' site of Kex2 by replacing it with 20 amino acids in turn. The results showed that when the amino acid of the P1' site was changed to Phe (F), the yield of target peptide significantly increased from 2.39 g/L to 4.81 g/L. Additionally, the novel peptide F-NZ2114 (short for FNZ) showed strong antimicrobial activity against Gram-positive (G+) bacteria, especially for Staphylococcus aureus and Streptococcus agalactiae (MIC: 4-8 μg/mL). The FNZ was very stable and retained high activity in various conditions; in addition, a low cytotoxicity and no hemolysis were observed even at a high concentration of 128 μg/mL, and a longer postantibiotic effect was reached. The above results indicate that this engineering strategy provided a feasible optimization scheme for enhancing the expression level and druggability of this antimicrobial peptide from fungal defensin and other similar targets by this updated recombinant yeast.
Collapse
Affiliation(s)
- Yanjie Jin
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Innovative Team of Antimicrobial Peptides and Alternatives to Antibiotics, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Na Yang
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Innovative Team of Antimicrobial Peptides and Alternatives to Antibiotics, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Da Teng
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Innovative Team of Antimicrobial Peptides and Alternatives to Antibiotics, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Ya Hao
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Innovative Team of Antimicrobial Peptides and Alternatives to Antibiotics, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Ruoyu Mao
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Innovative Team of Antimicrobial Peptides and Alternatives to Antibiotics, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Jianhua Wang
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Innovative Team of Antimicrobial Peptides and Alternatives to Antibiotics, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| |
Collapse
|
8
|
Zeng J, Wang J, Wu J, Deng R, Zhang L, Chen Q, Wang J, Jin X, Gui S, Xu Y, Lu X. A novel antimicrobial peptide M1-8 targets the lysosomal pathway to inhibit autolysosome formation and promote apoptosis in liver cancer cells. J Cell Mol Med 2023; 27:340-352. [PMID: 36628597 PMCID: PMC9889723 DOI: 10.1111/jcmm.17644] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 11/13/2022] [Accepted: 11/22/2022] [Indexed: 01/12/2023] Open
Abstract
Lysosomes, a central regulator of autophagy, play a critical role in tumour growth. Lysosomal protease cathepsin D can initiate apoptosis when released from lysosomes into the cytosol. In this study, we observed that Musca domestica cecropin (Mdc) 1-8 (M1-8), a small anti-tumour peptide derived from Mdc, inhibits hepatoma cell growth by blocking autophagy-lysosome fusion. This effect is likely achieved by targeting lysosomes to activate lysosomal protease D. Additionally, we examined whether lysosomal content and cathepsin D release were involved in M1-8-induced apoptosis. After exposure to M1-8, human hepatoma HepG2 cells rapidly co-localized with lysosomes, disrupted lysosomal integrity, caused leakage of lysosomal protease cathepsin D, caspase activation and mitochondrial membrane potential changes; and promoted cell apoptosis. Interestingly, in M1-8-treated HepG2 cells, autophagic protein content increased and the lysosome-autophagosome fusion was inhibited, suggesting that M1-8 can cause apoptosis through autophagy and lysosomes. This result indicates that a small accumulation of autophagy and autolysosome inhibition in cells can cause cell death. Taken together, these data suggest a novel insight into the regulatory mechanisms of M1-8 in autophagy and lysosomes, which may facilitate the development of M1-8 as a potential cancer therapeutic agent.
Collapse
Affiliation(s)
- Jiali Zeng
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, School of Life Science and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Jian Wang
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, School of Life Science and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Jibin Wu
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, School of Life Science and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Rui Deng
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, School of Life Science and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Lun Zhang
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, School of Life Science and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Qingru Chen
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, School of Life Science and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Jie Wang
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, School of Life Science and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Xiaobao Jin
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, School of Life Science and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Shuiqing Gui
- Intensive Care Unit, Shenzhen Second People's HospitalThe First Affiliated Hospital of Shenzhen UniversityShenzhenChina
| | - Yinghua Xu
- Key Laboratory of the Ministry of Health for Research on Quality and Standardization of Biotech ProductsNational Institutes for Food and Drug ControlBeijingChina
| | - Xuemei Lu
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, School of Life Science and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina,Central Laboratory of Shenzhen Center for Disease Control and PreventionShenzhenChina
| |
Collapse
|
9
|
Zhu M, Hu X, Liu H, Tian J, Yang J, Li L, Luo B, Zhou C, Lu L. Antibacterial peptide encapsulation and sustained release from chitosan-based delivery system. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
10
|
Cao C, Wu X, Zheng Y, Zhang L, Chen Y. Capacitive Desalination and Disinfection of Water Using UiO-66 Metal-Organic Framework/Bamboo Carbon with Chitosan. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3901. [PMID: 36364677 PMCID: PMC9655982 DOI: 10.3390/nano12213901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/20/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
The zirconium-based metal-organic framework (MOF) (UiO-66)/bamboo carbon (BC) composite with chitosan was prepared using hydrothermal and impregnation methods and used for capacitive desalination (CDI) and disinfection of water. The results showed that these composites had fast ion exchange and charge transfer properties. During the CDI process, these composites' electrodes exhibited good cycle stability, electrosorption capacity (4.25 mg/g) and excellent bactericidal effect. These carbon-based composites electrodes' bactericidal rate for Escherichia coli could reach 99.99% within 20 minutes; therefore, they had good performance and were a good choice for high-performance deionization applications.
Collapse
Affiliation(s)
- Cuihui Cao
- Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- Department of Chemistry and Pharmacy, Guilin Normal College, Guilin 541119, China
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiaofeng Wu
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Yuming Zheng
- Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Lizhen Zhang
- Department of Chemistry and Pharmacy, Guilin Normal College, Guilin 541119, China
| | - Yunfa Chen
- Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| |
Collapse
|
11
|
Dinesh Kumar S, Park JH, Kim HS, Seo CD, Ajish C, Kim EY, Lim HS, Shin SY. Cationic, amphipathic small molecules based on a triazine-piperazine-triazine scaffold as a new class of antimicrobial agents. Eur J Med Chem 2022; 243:114747. [PMID: 36103802 DOI: 10.1016/j.ejmech.2022.114747] [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: 06/02/2022] [Revised: 08/23/2022] [Accepted: 09/03/2022] [Indexed: 11/04/2022]
Abstract
Poor proteolytic resistance, toxicity and salt/serum sensitivity of antimicrobial peptides (AMPs) limits their practical clinical application. Here, to overcome these drawbacks of AMPs and develop novel antimicrobial agents, a series of small molecules based on a triazine-piperazine-triazine scaffold that mimic the cationic amphipathic structure of AMPs were synthesized and evaluated their potential as a new class of antimicrobial agents. All designed compounds showed strong antimicrobial activity and negligible hemolytic activity. Particularly, five compounds (9, 11, 12, 15, and 16) presented excellent cell selectivity with proteolytic resistance, salt/serum stability and anti-inflammatory activity against lipopolysaccharide (LPS)-induced inflammation. These five compounds exhibited similar or 2-4 fold higher antimicrobial activity than melittin against six antibiotic-resistant bacteria tested. Similar to the intracellular-targeting AMP, buforin-2, these compounds displayed an intracellular mode of antimicrobial action. These compounds showed potent biofilm inhibitory and eradicating activities against multidrug-resistant Pseudomonas aeruginosa (MDRPA). Additionally, these compounds displayed synergistic or additive effects when combined with selected clinically used antibiotics. Furthermore, these compounds have been proven to inhibit pro-inflammatory cytokine release by directly binding to LPS and blocking the interaction between LPS and CD14/TLR4 receptor in LPS-stimulated RAW264.7 macrophage cells. Overall, our results demonstrate the potential of the designed compounds as a novel class of multifunctional antimicrobial agents to combat bacterial infection.
Collapse
Affiliation(s)
- S Dinesh Kumar
- Department of Cellular & Molecular Medicine, School of Medicine, Chosun University, Gwangju, 61452, Republic of Korea
| | - Jun Hyung Park
- Department of Chemistry and Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Hyun Soo Kim
- Department of Chemistry and Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Chang Deok Seo
- Department of Chemistry and Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Chelladurai Ajish
- Department of Cellular & Molecular Medicine, School of Medicine, Chosun University, Gwangju, 61452, Republic of Korea
| | - Eun Young Kim
- Department of Cellular & Molecular Medicine, School of Medicine, Chosun University, Gwangju, 61452, Republic of Korea
| | - Hyun-Suk Lim
- Department of Chemistry and Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.
| | - Song Yub Shin
- Department of Cellular & Molecular Medicine, School of Medicine, Chosun University, Gwangju, 61452, Republic of Korea.
| |
Collapse
|
12
|
Parchebafi A, Tamanaee F, Ehteram H, Ahmad E, Nikzad H, Haddad Kashani H. The dual interaction of antimicrobial peptides on bacteria and cancer cells; mechanism of action and therapeutic strategies of nanostructures. Microb Cell Fact 2022; 21:118. [PMID: 35717207 PMCID: PMC9206340 DOI: 10.1186/s12934-022-01848-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 06/08/2022] [Indexed: 12/20/2022] Open
Abstract
Microbial infection and cancer are two leading causes of global mortality. Discovering and developing new therapeutics with better specificity having minimal side-effects and no drug resistance are of an immense need. In this regard, cationic antimicrobial peptides (AMP) with dual antimicrobial and anticancer activities are the ultimate choice. For better efficacy and improved stability, the AMPs available for treatment still required to be modified. There are several strategies in which AMPs can be enhanced through, for instance, nano-carrier application with high selectivity and specificity enables researchers to estimate the rate of drug delivery to a particular tissue. In this review we present the biology and modes of action of AMPs for both anticancer and antimicrobial activities as well as some modification strategies to improve the efficacy and selectivity of these AMPs.
Collapse
Affiliation(s)
- Atefeh Parchebafi
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Farzaneh Tamanaee
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Hassan Ehteram
- Department of Pathology, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Ejaz Ahmad
- Department of Pathology, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Hossein Nikzad
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Hamed Haddad Kashani
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
| |
Collapse
|
13
|
Woods C, Woolley L, Partridge G, Chen M, Haney EF, Hancock REW, Buller N, Currie A. Assessing the Activity of Antimicrobial Peptides Against Common Marine Bacteria Located in Rotifer (Brachionus plicatilis) Cultures. Probiotics Antimicrob Proteins 2022; 14:620-629. [PMID: 35612776 PMCID: PMC9246773 DOI: 10.1007/s12602-022-09928-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/11/2022] [Indexed: 11/05/2022]
Abstract
Rotifers are used as the first feed for marine fish larvae and are grown in large cultures that have high loads of organic matter and heterotrophic bacteria; these bacteria are passed on to the developing fish larvae and can potentially lead to bacterial infections. A modified minimum inhibitory concentration (MIC) protocol for antimicrobial peptides was used to determine the potency of ten antimicrobial peptides (AMPs) in artificial seawater relevant to a rotifer culture (salinity of 25‰) against common marine pathogens. All of the AMPs had antimicrobial activity against the bacterial isolates when the salt concentration was approximately zero. However, in high salt concentrations, the majority of the AMPs had an MIC value greater than 65 µg mL−1 in artificial seawater (25‰). The only exceptions were 2009 (32.5 µg mL−1) and 3002 (32.5 µg mL−1) against Vibrio rotiferianus and Tenacibaculum discolor, respectively. The selected synthetic AMPs were not effective at reducing the bacterial load in brackish salt concentrations of a typical commercial rotifer culture (25‰).
Collapse
Affiliation(s)
- Chelsea Woods
- College of Science, Murdoch University, Engineering & Education, HealthPerth, WA, Australia. .,Department of Primary Industries and Regional Development, Fremantle, Perth, WA, 6160, Australia.
| | - Lindsey Woolley
- College of Science, Murdoch University, Engineering & Education, HealthPerth, WA, Australia.,Department of Primary Industries and Regional Development, Fremantle, Perth, WA, 6160, Australia
| | - Gavin Partridge
- College of Science, Murdoch University, Engineering & Education, HealthPerth, WA, Australia.,Department of Primary Industries and Regional Development, Fremantle, Perth, WA, 6160, Australia
| | - Mengqi Chen
- Department of Primary Industries and Regional Development, Fremantle, Perth, WA, 6160, Australia
| | - Evan F Haney
- Centre for Microbial Diseases and Immunity Research, Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada
| | - Robert E W Hancock
- Centre for Microbial Diseases and Immunity Research, Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada
| | - Nicky Buller
- College of Science, Murdoch University, Engineering & Education, HealthPerth, WA, Australia.,Department of Primary Industries and Regional Development, Fremantle, Perth, WA, 6160, Australia
| | - Andrew Currie
- Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, WA, Australia.,Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, Perth, WA, Australia
| |
Collapse
|
14
|
Genetic analysis of Acenitobacter bumannii associated with viral respiratory infections. Int J Health Sci (Qassim) 2022. [DOI: 10.53730/ijhs.v6ns3.6317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
In this study, samples were collected from Corona patients who were in isolation units for Corona virus patients, where samples were taken (from the nasal passage, mouth and sputum) and the samples were transferred by a liquid nutrient medium to the laboratory and kept at -2 temperature until they were cultivated on the medium of the Maconkey and saved In the incubator for 24 hours to observe the types of bacteria present , The samples were also cultured on Chrom agar Base Acinetobacter bacteria (which is a selective medium).It is difficult to distinguish it phenotypically from other bacteria, The phenotypic detection of A. bumannii bacteria, biochemical tests, and then molecular detection using ITS-specific primer were also performed and molecular detection using SP4-specific primer were also performed . A molecular assay for the CipA gene that encodes for the production of an enzyme complementary-inhibitor and Plg-binding protein of A. baumannii (Cip A) was also performed and The molecular assay for the Peptidase M10, metallopeptidase-specific primer gene was also performe. As the most important virulence factors in A. bumannii , Because the two enzymes played an important role in the pathogenesis of these bacteria .
Collapse
|
15
|
Choudhury M, Bindra HS, Singh K, Singh AK, Nayak R. Antimicrobial polymeric composites in consumer goods and healthcare sector: A healthier way to prevent infection. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5660] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Mousam Choudhury
- Amity Institute of Nanotechnology Amity University Uttar Pradesh Noida India
| | | | - Karishma Singh
- Amity Institute of Nanotechnology Amity University Uttar Pradesh Noida India
| | - Alok Kumar Singh
- School of Biotechnology Sher‐e‐Kashmir University of Agricultural Science and Technology of Jammu Jammu and Kashmir India
| | - Ranu Nayak
- Amity Institute of Nanotechnology Amity University Uttar Pradesh Noida India
| |
Collapse
|
16
|
Mechanism of Action and Therapeutic Potential of the β-Hairpin Antimicrobial Peptide Capitellacin from the Marine Polychaeta Capitella teleta. Mar Drugs 2022; 20:md20030167. [PMID: 35323465 PMCID: PMC8953592 DOI: 10.3390/md20030167] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 02/06/2023] Open
Abstract
Among the most potent and proteolytically resistant antimicrobial peptides (AMPs) of animal origin are molecules forming a β-hairpin structure stabilized by disulfide bonds. In this study, we investigated the mechanism of action and therapeutic potential of the β-hairpin AMP from the marine polychaeta Capitella teleta, named capitellacin. The peptide exhibits a low cytotoxicity toward mammalian cells and a pronounced activity against a wide range of bacterial pathogens including multi-resistant bacteria, but the mechanism of its antibacterial action is still obscure. In view of this, we obtained analogs of capitellacin and tachyplesin-inspired chimeric variants to identify amino acid residues important for biological activities. A low hydrophobicity of the β-turn region in capitellacin determines its modest membranotropic activity and slow membrane permeabilization. Electrochemical measurements in planar lipid bilayers mimicking the E. coli membrane were consistent with the detergent-like mechanism of action rather than with binding to a specific molecular target in the cell. The peptide did not induce bacterial resistance after a 21-day selection experiment, which also pointed at a membranotropic mechanism of action. We also found that capitellacin can both prevent E. coli biofilm formation and destroy preformed mature biofilms. The marked antibacterial and antibiofilm activity of capitellacin along with its moderate adverse effects on mammalian cells make this peptide a promising scaffold for the development of drugs for the treatment of chronic E. coli infections, in particular those caused by the formation of biofilms.
Collapse
|
17
|
Design of Membrane Active Peptides Considering Multi-Objective Optimization for Biomedical Application. MEMBRANES 2022; 12:membranes12020180. [PMID: 35207101 PMCID: PMC8880019 DOI: 10.3390/membranes12020180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/21/2022] [Accepted: 01/26/2022] [Indexed: 02/04/2023]
Abstract
A multitude of membrane active peptides exists that divides into subclasses, such as cell penetrating peptides (CPPs) capable to enter eukaryotic cells or antimicrobial peptides (AMPs) able to interact with prokaryotic cell envelops. Peptide membrane interactions arise from unique sequence motifs of the peptides that account for particular physicochemical properties. Membrane active peptides are mainly cationic, often primary or secondary amphipathic, and they interact with membranes depending on the composition of the bilayer lipids. Sequences of these peptides consist of short 5–30 amino acid sections derived from natural proteins or synthetic sources. Membrane active peptides can be designed using computational methods or can be identified in screenings of combinatorial libraries. This review focuses on strategies that were successfully applied to the design and optimization of membrane active peptides with respect to the fact that diverse features of successful peptide candidates are prerequisites for biomedical application. Not only membrane activity but also degradation stability in biological environments, propensity to induce resistances, and advantageous toxicological properties are crucial parameters that have to be considered in attempts to design useful membrane active peptides. Reliable assay systems to access the different biological characteristics of numerous membrane active peptides are essential tools for multi-objective peptide optimization.
Collapse
|
18
|
Therapeutic Potential of Antimicrobial Peptides for Wound Healing. Int J Pept Res Ther 2022. [DOI: 10.1007/s10989-021-10350-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
19
|
Zhang C, Duan J, Huang Y, Chen M. Enhanced Skin Delivery of Therapeutic Peptides Using Spicule-Based Topical Delivery Systems. Pharmaceutics 2021; 13:pharmaceutics13122119. [PMID: 34959402 PMCID: PMC8709454 DOI: 10.3390/pharmaceutics13122119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/01/2021] [Accepted: 12/06/2021] [Indexed: 11/30/2022] Open
Abstract
This study reports two therapeutic peptides, insulin (INS, as a hydrophilic model peptide) and cyclosporine A (CysA, as a hydrophobic one), that can be administrated through a transdermal or dermal route by using spicule-based topical delivery systems in vitro and in vivo. We obtained a series of spicules with different shapes and sizes from five kinds of marine sponges and found a good correlation between the skin permeability enhancement induced by these spicules and their aspect ratio L/D. In the case of INS, Sponge Haliclona sp. spicules (SHS) dramatically increased the transdermal flux of INS (457.0 ± 32.3 ng/cm2/h) compared to its passive penetration (5.0 ± 2.2 ng/cm2/h) in vitro. Further, SHS treatment slowly and gradually reduced blood glucose to 13.1 ± 6.3% of the initial level in 8 h, while subcutaneous injection resulted in a rapid blood glucose reduction to 15.9 ± 1.4% of the initial level in 4 h, followed by a rise back to 75.1 ± 24.0% of the initial level in 8 h. In the case of CysA, SHS in combination with ethosomes (SpEt) significantly (p < 0.05) increased the accumulation of CysA in viable epidermis compared to other groups. Further, SpEt reduced the epidermis thickness by 41.5 ± 9.4% in 7 days, which was significantly more effective than all other groups. Spicule-based topical delivery systems offer promising strategies for delivering therapeutic peptides via a transdermal or dermal route.
Collapse
Affiliation(s)
- Chi Zhang
- Department of Marine Biological Science & Technology, College of Ocean & Earth Sciences, Xiamen University, Xiamen 361102, China; (C.Z.); (J.D.)
| | - Jiwen Duan
- Department of Marine Biological Science & Technology, College of Ocean & Earth Sciences, Xiamen University, Xiamen 361102, China; (C.Z.); (J.D.)
| | - Yongxiang Huang
- State Key Laboratory of Marine Environmental Science, College of Ocean & Earth Sciences, Xiamen University, Xiamen 361102, China;
| | - Ming Chen
- Department of Marine Biological Science & Technology, College of Ocean & Earth Sciences, Xiamen University, Xiamen 361102, China; (C.Z.); (J.D.)
- State-Province Joint Engineering Laboratory of Marine Bioproducts and Technology, Xiamen University, Xiamen 361102, China
- Shenzhen Research Institute of Xiamen University, Shenzhen 518000, China
- Pingtan Research Institute of Xiamen University, Pingtan 350400, China
- Correspondence:
| |
Collapse
|
20
|
Luna-Reyes I, Pérez-Hernández EG, Delgado-Coello B, Mas-Oliva J. Peptides as Therapeutic Molecules to Neutralize Gram-negative Bacterial Lipopolysaccharides in Sepsis and Septic Shock. Arch Med Res 2021; 52:798-807. [DOI: 10.1016/j.arcmed.2021.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 08/03/2021] [Indexed: 11/16/2022]
|
21
|
Bin Hafeez A, Jiang X, Bergen PJ, Zhu Y. Antimicrobial Peptides: An Update on Classifications and Databases. Int J Mol Sci 2021; 22:11691. [PMID: 34769122 PMCID: PMC8583803 DOI: 10.3390/ijms222111691] [Citation(s) in RCA: 87] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/24/2021] [Accepted: 10/25/2021] [Indexed: 02/06/2023] Open
Abstract
Antimicrobial peptides (AMPs) are distributed across all kingdoms of life and are an indispensable component of host defenses. They consist of predominantly short cationic peptides with a wide variety of structures and targets. Given the ever-emerging resistance of various pathogens to existing antimicrobial therapies, AMPs have recently attracted extensive interest as potential therapeutic agents. As the discovery of new AMPs has increased, many databases specializing in AMPs have been developed to collect both fundamental and pharmacological information. In this review, we summarize the sources, structures, modes of action, and classifications of AMPs. Additionally, we examine current AMP databases, compare valuable computational tools used to predict antimicrobial activity and mechanisms of action, and highlight new machine learning approaches that can be employed to improve AMP activity to combat global antimicrobial resistance.
Collapse
Affiliation(s)
- Ahmer Bin Hafeez
- Centre of Biotechnology and Microbiology, University of Peshawar, Peshawar 25120, Pakistan;
| | - Xukai Jiang
- Infection and Immunity Program, Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC 3800, Australia; (X.J.); (P.J.B.)
- National Glycoengineering Research Center, Shandong University, Qingdao 266237, China
| | - Phillip J. Bergen
- Infection and Immunity Program, Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC 3800, Australia; (X.J.); (P.J.B.)
| | - Yan Zhu
- Infection and Immunity Program, Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC 3800, Australia; (X.J.); (P.J.B.)
| |
Collapse
|
22
|
Ma Y, Yao A, Chen X, Wang L, Ma C, Xi X, Chen T, Shaw C, Zhou M. Generation of truncated derivatives through in silico enzymatic digest of peptide GV30 target MRSA both in vitro and in vivo. Comput Struct Biotechnol J 2021; 19:4984-4996. [PMID: 34584638 PMCID: PMC8441110 DOI: 10.1016/j.csbj.2021.08.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/26/2021] [Accepted: 08/26/2021] [Indexed: 01/06/2023] Open
Abstract
A novel host-defence peptide GV30 was identified from the frog skin secretion of Hylarana guentheri. Seven short AMPs were generated by in silico enzymatic digest of GV30 using an online proteomic bioinformatic tool PeptideCutter in ExPASy server. Two truncated products, GV23 and GV21, exhibited an improved antibacterial effect against MRSA in vitro and demonstrated a faster bactericidal effect than the parent peptide. GV 21 was found to have a better in vivo anti-MRSA activity and retain the good antibacterial activity under salt and serum conditions, along with lower toxicity.
Methicillin-resistant Staphylococcus aureus (MRSA) causing serious hospital-acquired infections and skin infections has become a “superbug” in clinical treatment. Although the clinical treatment of MRSA is continuously improving, due to its unceasing global spread, MRSA has produced much heated discussion and focused study, therefore suggesting an urgent task to find new antibacterial drugs to combat this issue. Antimicrobial peptides (AMPs) are used as the last-resort drugs for treating multidrug-resistant bacterial infections, but their utilisation is still limited due to their low stability and often strong toxicity. Here, we evaluated the structure and the bioactivity of an AMP, GV30, derived from the frog skin secretions of Hylarana guentheri, and designed seven truncated derivatives based on the presence of cleavage sites for trypsin using an online proteomic bioinformatic resource PeptideCutter tool. We investigated the anti-MRSA effect, toxicity and salt- and serum-resistance of these peptides. Interestingly, the structure–activity relationship revealed that removing “Rana box” loop could significantly improve the bactericidal speed on MRSA. Among these derivatives, GV21 (GVIFNALKGVAKTVAAQLLKK-NH2), because of its faster antibacterial effect, lower toxicity, and retains the good antibacterial activity and stability of the parent peptide, is considered to become a new potential antibacterial candidate against MRSA.
Collapse
Affiliation(s)
- Yingxue Ma
- Natural Drug Discovery Group, School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, Northern Ireland, UK
| | - Aifang Yao
- Natural Drug Discovery Group, School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, Northern Ireland, UK
| | - Xiaoling Chen
- Natural Drug Discovery Group, School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, Northern Ireland, UK
| | - Lei Wang
- Natural Drug Discovery Group, School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, Northern Ireland, UK
| | - Chengbang Ma
- Natural Drug Discovery Group, School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, Northern Ireland, UK
| | - Xinping Xi
- Natural Drug Discovery Group, School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, Northern Ireland, UK
| | - Tianbao Chen
- Natural Drug Discovery Group, School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, Northern Ireland, UK
| | - Chris Shaw
- Natural Drug Discovery Group, School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, Northern Ireland, UK
| | - Mei Zhou
- Natural Drug Discovery Group, School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, Northern Ireland, UK
| |
Collapse
|
23
|
Gera S, Kankuri E, Kogermann K. Antimicrobial peptides - Unleashing their therapeutic potential using nanotechnology. Pharmacol Ther 2021; 232:107990. [PMID: 34592202 DOI: 10.1016/j.pharmthera.2021.107990] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/30/2021] [Accepted: 09/01/2021] [Indexed: 02/07/2023]
Abstract
Antimicrobial peptides (AMPs) are potent, mostly cationic, and amphiphilic broad-spectrum host defense antimicrobials that are produced by all organisms ranging from prokaryotes to humans. In addition to their antimicrobial actions, they modulate inflammatory and immune responses and promote wound healing. Although they have clear benefits over traditional antibiotic drugs, their wide therapeutic utilization is compromised by concerns of toxicity, stability, and production costs. Recent advances in nanotechnology have attracted increasing interest to unleash the AMPs' immense potential as broad-spectrum antibiotics and anti-biofilm agents, against which the bacteria have less chances to develop resistance. Topical application of AMPs promotes migration of keratinocytes and fibroblasts, and contributes significantly to an accelerated wound healing process. Delivery of AMPs by employing nanotechnological approaches avoids the major disadvantages of AMPs, such as instability and toxicity, and provides a controlled delivery profile together with prolonged activity. In this review, we provide an overview of the key properties of AMPs and discuss the latest developments in topical AMP therapy using nanocarriers. We use chronic hard-to-heal wounds-complicated by infections, inflammation, and stagnated healing-as an example of an unmet medical need for which the AMPs' wide range of therapeutic actions could provide the most potential benefit. The use of innovative materials and sophisticated nanotechnological approaches offering various possibilities are discussed in more depth.
Collapse
Affiliation(s)
- Sonia Gera
- Institute of Pharmacy, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
| | - Esko Kankuri
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, Haartmaninkatu 8, 00290 Helsinki, Finland.
| | - Karin Kogermann
- Institute of Pharmacy, University of Tartu, Nooruse 1, 50411 Tartu, Estonia.
| |
Collapse
|
24
|
Modification Strategy of D-leucine Residue Addition on a Novel Peptide from Odorrana schmackeri, with Enhanced Bioactivity and In Vivo Efficacy. Toxins (Basel) 2021; 13:toxins13090611. [PMID: 34564615 PMCID: PMC8473181 DOI: 10.3390/toxins13090611] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/20/2021] [Accepted: 08/27/2021] [Indexed: 11/25/2022] Open
Abstract
Brevinins are a well-characterised, frog-skin-derived, antimicrobial peptide (AMP) family, but their applications are limited by high cytotoxicity. In this study, a wild-type des-Leu2 brevinin peptide, named brevinin-1OS (B1OS), was identified from Odorrana schmackeri. To explore the significant role of the leucine residue at the second position, two variants, B1OS-L and B1OS-D-L, were designed by adding L-leucine and D-leucine residues at this site, respectively. The antibacterial and anticancer activities of B1OS-L and B1OS-D-L were around ten times stronger than the parent peptide. The activity of B1OS against the growth of Gram-positive bacteria was markedly enhanced after modification. Moreover, the leucine-modified products exerted in vivo therapeutic potential in an methicillin-resistant Staphylococcus aureus (MRSA)-infected waxworm model. Notably, the single substitution of D-leucine significantly increased the killing speed on lung cancer cells, where no viable H838 cells survived after 2 h of treatment with B1OS-D-L at 10 μM with low cytotoxicity on normal cells. Overall, our study suggested that the conserved leucine residue at the second position from the N-terminus is vital for optimising the dual antibacterial and anticancer activities of B1OS and proposed B1OS-D-L as an appealing therapeutic candidate for development.
Collapse
|
25
|
Li W, Separovic F, O'Brien-Simpson NM, Wade JD. Chemically modified and conjugated antimicrobial peptides against superbugs. Chem Soc Rev 2021; 50:4932-4973. [PMID: 33710195 DOI: 10.1039/d0cs01026j] [Citation(s) in RCA: 201] [Impact Index Per Article: 67.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Antimicrobial resistance (AMR) is one of the greatest threats to human health that, by 2050, will lead to more deaths from bacterial infections than cancer. New antimicrobial agents, both broad-spectrum and selective, that do not induce AMR are urgently required. Antimicrobial peptides (AMPs) are a novel class of alternatives that possess potent activity against a wide range of Gram-negative and positive bacteria with little or no capacity to induce AMR. This has stimulated substantial chemical development of novel peptide-based antibiotics possessing improved therapeutic index. This review summarises recent synthetic efforts and their impact on analogue design as well as their various applications in AMP development. It includes modifications that have been reported to enhance antimicrobial activity including lipidation, glycosylation and multimerization through to the broad application of novel bio-orthogonal chemistry, as well as perspectives on the direction of future research. The subject area is primarily the development of next-generation antimicrobial agents through selective, rational chemical modification of AMPs. The review further serves as a guide toward the most promising directions in this field to stimulate broad scientific attention, and will lead to new, effective and selective solutions for the several biomedical challenges to which antimicrobial peptidomimetics are being applied.
Collapse
Affiliation(s)
- Wenyi Li
- Melbourne Dental School, Centre for Oral Health Research, University of Melbourne, VIC 3010, Australia. and Bio21 Institute, University of Melbourne, VIC 3010, Australia
| | - Frances Separovic
- Bio21 Institute, University of Melbourne, VIC 3010, Australia and School of Chemistry, University of Melbourne, VIC 3010, Australia
| | - Neil M O'Brien-Simpson
- Melbourne Dental School, Centre for Oral Health Research, University of Melbourne, VIC 3010, Australia. and Bio21 Institute, University of Melbourne, VIC 3010, Australia
| | - John D Wade
- School of Chemistry, University of Melbourne, VIC 3010, Australia and The Florey Institute of Neuroscience and Mental Health, University of Melbourne, VIC 3010, Australia.
| |
Collapse
|
26
|
Kim EY, Han SH, Kim JM, Kim SM, Shin SY. Short antimicrobial peptidomimetic SAMP-5 effective against multidrug-resistant gram-negative bacteria. J Anal Sci Technol 2021. [DOI: 10.1186/s40543-021-00281-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
AbstractSAMP-5 is a short histidine-derived antimicrobial peptidomimetic with pendant dialkylated tail. In this study, we evaluated the potential of SAMP-5 as an antimicrobial agent to combat multidrug-resistant gram-negative bacteria. SAMP-5 showed potent antimicrobial activity (minimum inhibitory concentration 16-64 μg/ml) comparable to melittin against multidrug-resistant Escherichia coli (MDREC) and multidrug-resistant (MDRPA). SAMP-5 displayed no cytotoxicity against three mammalian cells such as mouse macrophage RAW264.7, mouse embryonic fibroblast NIH-3T3, and human bone marrow SH-SY5Y cells at the concentration of 128 μg/ml. SAMP-5 showed resistance to proteolytic degradation with pepsin, trypsin, α-chymotrypsin, and proteinase K. Importantly, unlike ciprofloxacin, no antibiotic resistance against SAMP-5 arose for Pseudomonas aeruginosa during 7 days of serial passage at 0.5 × MIC. Moreover, SAMP-5 showed synergy or additive effects against MDRPA and MDREC, when it combined with chloramphenicol, ciprofloxacin, and oxacillin. Collectively, our results suggested that SAMP-5 is a promising alternative and adjuvant to treat infections caused by multidrug-resistant gram-negative bacteria.
Collapse
|
27
|
pH-responsive aminolipid nanocarriers for antimicrobial peptide delivery. J Colloid Interface Sci 2021; 603:398-407. [PMID: 34197988 DOI: 10.1016/j.jcis.2021.06.050] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 05/06/2021] [Accepted: 06/08/2021] [Indexed: 11/21/2022]
Abstract
HYPOTHESIS pH-responsive aminolipid self-assemblies are promising platforms for the targeted delivery of antimicrobial peptides (AMPs), with the potential to improve their therapeutic efficiency and physico-chemical stability. EXPERIMENTS pH-sensitive nanocarriers based on dispersed self-assemblies of 1,2-dioleoyl-3-dimethylammonium-propane (DODAP) with the human cathelicidin LL-37 in excess water were characterized at different pH values using small-angle X-ray scattering, cryogenic transmission electron microscopy, and dynamic light scattering. Fluorescence and electrophoretic mobility measurements were used to probe the encapsulation efficiency of LL-37 and the nanocarriers' surface potential. FINDINGS Upon decreasing pH in the DODAP/water systems, normal oil-in-water emulsions at pH ≥ 5.0 transitioned to emulsions encapsulating inverse hexagonal and cubic structures at pH between 4.5 and 4.0, and mostly positively-charged vesicles at pH < 4.0. These colloidal transformations are driven by the protonation of DODAP upon pH decrease. The larger lipid-water interfacial area provided by the DODAP self-assemblies at pH ≤ 4.5 allowed for an adequate encapsulation efficiency of LL-37, favouring the formation of vesicles in a concentration-dependent manner. Contrary, LL-37 was found to dissociate from the emulsion droplets at pH 6.0. The knowledge on the pH-triggered self-assembly of LL-37 and DODAP, combined with the results on peptide release from the structures contribute to the fundamental understanding of lipid/peptide self-assembly. The results can guide the rational design of future pH-responsive AMP delivery systems.
Collapse
|
28
|
Liu H, Yang N, Teng D, Mao R, Hao Y, Ma X, Wang J. Design and Pharmacodynamics of Recombinant Fungus Defensin NZL with Improved Activity against Staphylococcus hyicus In Vitro and In Vivo. Int J Mol Sci 2021; 22:ijms22115435. [PMID: 34063982 PMCID: PMC8196787 DOI: 10.3390/ijms22115435] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 05/17/2021] [Indexed: 12/11/2022] Open
Abstract
Staphylococcus hyicus is recognized as a leading pathogen of exudative epidermitis in modern swine industry. Antimicrobial peptides are attractive candidates for development as potential therapeutics to combat the serious threats of the resistance of S. hyicus. In this study, a series of derivatives were designed based on the NZ2114 template with the aim of obtaining peptides with more potent antimicrobial activity through changing net positive charge or hydrophobicity. Among them, a variant designated as NZL was highly expressed in Pichia pastoris (P. pastoris) with total secreted protein of 1505 mg/L in a 5-L fermenter and exhibited enhanced antimicrobial activity relative to parent peptide NZ2114. Additionally, NZL could kill over 99% of S. hyicus NCTC10350 in vitro within 8 h and in Hacat cells. The results of membrane permeabilization assay, morphological observations, peptide localization assay showed that NZL had potent activity against S. hyicus, which maybe kill S. hyicus through action on the cell wall. NZL also showed an effective therapy in a mouse peritonitis model caused by S. hyicus, superior to NZ2114 or ceftriaxone. Overall, these findings can contribute to explore a novel potential candidate against S. hyicus infections.
Collapse
Affiliation(s)
- He Liu
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (H.L.); (N.Y.); (D.T.); (R.M.); (Y.H.); (X.M.)
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Na Yang
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (H.L.); (N.Y.); (D.T.); (R.M.); (Y.H.); (X.M.)
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Da Teng
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (H.L.); (N.Y.); (D.T.); (R.M.); (Y.H.); (X.M.)
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Ruoyu Mao
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (H.L.); (N.Y.); (D.T.); (R.M.); (Y.H.); (X.M.)
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Ya Hao
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (H.L.); (N.Y.); (D.T.); (R.M.); (Y.H.); (X.M.)
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Xuanxuan Ma
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (H.L.); (N.Y.); (D.T.); (R.M.); (Y.H.); (X.M.)
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Jianhua Wang
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (H.L.); (N.Y.); (D.T.); (R.M.); (Y.H.); (X.M.)
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
- Correspondence: ; Tel.: +86-10-82106081 or +86-10-82106079; Fax: +86-10-82106079
| |
Collapse
|
29
|
Sha XY, Shi Q, Liu L, Zhong JX. Update on the management of fungal keratitis. Int Ophthalmol 2021; 41:3249-3256. [PMID: 33929644 DOI: 10.1007/s10792-021-01873-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 04/19/2021] [Indexed: 12/15/2022]
Abstract
PURPOSE The aim of this article is to introduce the recent advance on the studies of fungal keratitis published over past 5 years. METHODS We performed literature review of articles published on PubMed, Google Scholar, CNKI and Web of Science relevant to the diagnosis, pathogenesis and novel treatment of fungal keratitis. RESULTS Excessive inflammation can lead to stromal damage and corneal opacification, hence the research on immune mechanism provides many potential therapeutic targets for fungal keratitis. Many researchers discussed the importance of earlier definitive diagnosis and were trying to find rapid and accurate diagnostic methods of pathogens. Develop new drug delivery systems and new routes of administration with better corneal penetration, prolonged ocular residence time, and better mucoadhesive properties is also one of the research hotspots. Additionally, many novel therapeutic agents and methods have been gradually applied in clinical ophthalmology. CONCLUSION The diagnosis and treatment of fungal keratitis are still a challenge for ophthalmologist, and many researches provide new methods to conquer these problems.
Collapse
Affiliation(s)
- Xiao-Yuan Sha
- Department of Ophthalmology, First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Qi Shi
- Department of Ophthalmology, First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Lian Liu
- Department of Ophthalmology, First Affiliated Hospital of Jinan University, Guangzhou, China.
| | - Jing-Xiang Zhong
- Department of Ophthalmology, First Affiliated Hospital of Jinan University, Guangzhou, China
| |
Collapse
|
30
|
Hitchner MA, Necelis MR, Shirley D, Caputo GA. Effect of Non-natural Hydrophobic Amino Acids on the Efficacy and Properties of the Antimicrobial Peptide C18G. Probiotics Antimicrob Proteins 2021; 13:527-541. [PMID: 32889698 PMCID: PMC7933317 DOI: 10.1007/s12602-020-09701-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Antimicrobial peptides (AMPs) have been an area of great interest, due to the high selectivity of these molecules toward bacterial targets over host cells and the limited development of bacterial resistance to these molecules through evolution. The peptides are known to selectively bind to bacterial cell surfaces through electrostatic interactions, and subsequently, the peptides insert into the cell membrane and cause local disruptions of membrane integrity leading to cell death. Previous experiments showed that replacing the Leu residues in the AMP C18G with other naturally occurring hydrophobic residues resulted in side-chain-dependent activities. This work extends the investigation to non-natural hydrophobic amino acids and the effect on peptide activity. Minimal inhibitory concentration (MIC) results demonstrated that amino acid substitutions containing long flexible carbon chains maintained or increased antimicrobial activity compared to natural analogues. In solution, the peptide showed aggregation only with the most hydrophobic non-natural amino acid substitutions. Binding assays using Trp fluorescence confirm a binding preference for anionic lipids while quenching experiments demonstrated that the more hydrophobic peptides are more deeply buried in the anionic lipid bilayers compared to the zwitterionic bilayers. The most effective peptides at killing bacteria were also those which showed some level of disruption of bacterial membranes; however, one peptide sequence exhibited very strong activity and very low levels of red blood cell hemolysis, yielding a promising target for future development.
Collapse
Affiliation(s)
- Morgan A Hitchner
- Department of Chemistry and Biochemistry, Rowan University, 201 Mullica Hill Road, Glassboro, NJ, 08028, USA
| | - Matthew R Necelis
- Department of Chemistry and Biochemistry, Rowan University, 201 Mullica Hill Road, Glassboro, NJ, 08028, USA
| | - Devanie Shirley
- Department of Chemistry and Biochemistry, Rowan University, 201 Mullica Hill Road, Glassboro, NJ, 08028, USA
| | - Gregory A Caputo
- Department of Chemistry and Biochemistry, Rowan University, 201 Mullica Hill Road, Glassboro, NJ, 08028, USA.
- Department of Molecular and Cellular Biosciences, Rowan University, 201 Mullica Hill Road, Glassboro, NJ, 08028, USA.
| |
Collapse
|
31
|
Diamond G, Molchanova N, Herlan C, Fortkort JA, Lin JS, Figgins E, Bopp N, Ryan LK, Chung D, Adcock RS, Sherman M, Barron AE. Potent Antiviral Activity against HSV-1 and SARS-CoV-2 by Antimicrobial Peptoids. Pharmaceuticals (Basel) 2021; 14:ph14040304. [PMID: 33807248 PMCID: PMC8066833 DOI: 10.3390/ph14040304] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/26/2021] [Accepted: 03/28/2021] [Indexed: 12/13/2022] Open
Abstract
Viral infections, such as those caused by Herpes Simplex Virus-1 (HSV-1) and SARS-CoV-2, affect millions of people each year. However, there are few antiviral drugs that can effectively treat these infections. The standard approach in the development of antiviral drugs involves the identification of a unique viral target, followed by the design of an agent that addresses that target. Antimicrobial peptides (AMPs) represent a novel source of potential antiviral drugs. AMPs have been shown to inactivate numerous different enveloped viruses through the disruption of their viral envelopes. However, the clinical development of AMPs as antimicrobial therapeutics has been hampered by a number of factors, especially their enzymatically labile structure as peptides. We have examined the antiviral potential of peptoid mimics of AMPs (sequence-specific N-substituted glycine oligomers). These peptoids have the distinct advantage of being insensitive to proteases, and also exhibit increased bioavailability and stability. Our results demonstrate that several peptoids exhibit potent in vitro antiviral activity against both HSV-1 and SARS-CoV-2 when incubated prior to infection. In other words, they have a direct effect on the viral structure, which appears to render the viral particles non-infective. Visualization by cryo-EM shows viral envelope disruption similar to what has been observed with AMP activity against other viruses. Furthermore, we observed no cytotoxicity against primary cultures of oral epithelial cells. These results suggest a common or biomimetic mechanism, possibly due to the differences between the phospholipid head group makeup of viral envelopes and host cell membranes, thus underscoring the potential of this class of molecules as safe and effective broad-spectrum antiviral agents. We discuss how and why differing molecular features between 10 peptoid candidates may affect both antiviral activity and selectivity.
Collapse
Affiliation(s)
- Gill Diamond
- Department of Oral Immunology and Infectious Diseases, University of Louisville School of Dentistry, Louisville, KY 40202, USA;
- Correspondence: (G.D.); (A.E.B.)
| | - Natalia Molchanova
- Department of Bioengineering, Stanford University School of Medicine, Stanford, CA 94305, USA; (N.M.); (C.H.); (J.A.F.); (J.S.L.)
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Claudine Herlan
- Department of Bioengineering, Stanford University School of Medicine, Stanford, CA 94305, USA; (N.M.); (C.H.); (J.A.F.); (J.S.L.)
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
| | - John A. Fortkort
- Department of Bioengineering, Stanford University School of Medicine, Stanford, CA 94305, USA; (N.M.); (C.H.); (J.A.F.); (J.S.L.)
| | - Jennifer S. Lin
- Department of Bioengineering, Stanford University School of Medicine, Stanford, CA 94305, USA; (N.M.); (C.H.); (J.A.F.); (J.S.L.)
| | - Erika Figgins
- Department of Oral Immunology and Infectious Diseases, University of Louisville School of Dentistry, Louisville, KY 40202, USA;
| | - Nathen Bopp
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA;
| | - Lisa K. Ryan
- Division of Infectious Diseases and Global Medicine, Department of Medicine, University of Florida School of Medicine, Gainesville, FL 32601, USA;
| | - Donghoon Chung
- Center for Predictive Medicine, Department of Microbiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA; (D.C.); (R.S.A.)
| | - Robert Scott Adcock
- Center for Predictive Medicine, Department of Microbiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA; (D.C.); (R.S.A.)
| | - Michael Sherman
- Department of Biochemistry and Molecular Biology, Sealy Center for Structural Biology and Molecular Biophysics, University of Texas Medical Branch, Galveston, TX 77555, USA;
| | - Annelise E. Barron
- Department of Bioengineering, Stanford University School of Medicine, Stanford, CA 94305, USA; (N.M.); (C.H.); (J.A.F.); (J.S.L.)
- Correspondence: (G.D.); (A.E.B.)
| |
Collapse
|
32
|
Han H, Teng D, Mao R, Hao Y, Yang N, Wang Z, Li T, Wang X, Wang J. Marine Peptide-N6NH2 and Its Derivative-GUON6NH2 Have Potent Antimicrobial Activity Against Intracellular Edwardsiella tarda in vitro and in vivo. Front Microbiol 2021; 12:637427. [PMID: 33767681 PMCID: PMC7985170 DOI: 10.3389/fmicb.2021.637427] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 02/10/2021] [Indexed: 12/03/2022] Open
Abstract
Edwardsiella tarda is a facultative intracellular pathogen in humans and animals. There is no effective way except vaccine candidates to eradicate intracellular E. tarda. In this study, four derivatives of marine peptide-N6NH2 were designed by an introduction of unnatural residues or substitution of natural ones, and their intracellular activities against E. tarda were evaluated in macrophages and in mice, respectively. The minimum inhibitory concentration (MIC) value of N6NH2 and GUON6NH2 against E. tarda was 8 μg/mL. GUON6NH2 showed higher stability to trypsin, lower toxicity (<1%) and longer post-antibiotic effect (PAE) than N6NH2 and other derivatives. Antibacterial mechanism results showed that GUON6NH2 could bind to LPS and destroyed outer/inner cell membranes of E. tarda, superior to N6NH2 and norfloxacin. Both N6NH2 and GUON6NH2 were internalized into macrophages mainly via lipid rafts, micropinocytosis, and microtubule polymerization, respectively, and distributed in the cytoplasm. The intracellular inhibition rate of GUON6NH2 against E. tarda was 97.05–100%, higher than that in case of N6NH2 (96.82–100%). In the E. tarda-induced peritonitis mouse model, after treatment with of 1 μmol/kg N6NH2 and GUON6NH2, intracellular bacterial numbers were reduced by 1.54- and 1.97-Log10 CFU, respectively, higher than norfloxacin (0.35-Log10 CFU). These results suggest that GUON6NH2 may be an excellent candidate for novel antimicrobial agents to treat infectious diseases caused by intracellular E. tarda.
Collapse
Affiliation(s)
- Huihui Han
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China.,Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Da Teng
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China.,Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Ruoyu Mao
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China.,Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Ya Hao
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China.,Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Na Yang
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China.,Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Zhenlong Wang
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China.,Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Ting Li
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China.,Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Xiumin Wang
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, China.,Chinese Herbal Medicine Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jianhua Wang
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China.,Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, China
| |
Collapse
|
33
|
Perpétuo L, Voisin PM, Amado F, Hirtz C, Vitorino R. Ghrelin and adipokines: An overview of their physiological role, antimicrobial activity and impact on cardiovascular conditions. VITAMINS AND HORMONES 2021; 115:477-509. [PMID: 33706959 DOI: 10.1016/bs.vh.2020.12.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The human body has many different hormones that interact with each other and with other factors such as proteins, cell receptors and metabolites. There is still a limited understanding of some of the underlying biological mechanisms of some hormones. In the past decades, science and technology have made major advancements in regard to innovation and knowledge in fields such as medicine. However, some conditions are complex and have many variables that their full picture is still unclear, even though some of these conditions have an alarming rate of incidence and serious health consequences. Conditions such as type 2 diabetes, obesity, nonalcoholic liver disease (NAFLD), cancer in its different forms and even mental conditions, such as Alzheimer's disease, are some of the most common diseases in the 21st century. These conditions are relevant not only because of their high incidence on the general population, but also because of their severity. In this chapter, we present an overview of cardiovascular (CV) diseases. According to the World Health Organization (WHO), cardiovascular diseases, such as coronary artery disease (CAD), heart attack, cardiomyopathy and heart failure (among others), are the number one cause of death worldwide. In 2016, it was estimated that 17.9 million people died from CV diseases, representing more than 30% of all global deaths. Approximately 95% of people who died from CV diseases were so-called "premature deaths" because were referenced to individuals under the age of 70 years old. In this chapter we described some of the hormones that may have an impact on CV diseases, including ghrelin, a peptide that is mostly produced in the stomach, known to induce hunger. Ghrelin is linked to an increase in body fat, i.e., adipose tissue in animals. For this reason, we also included the adipokines leptin, adiponectin and resistin. The main objectives of this chapter are to present the state of the art knowledge concerning the mechanisms of each hormone relevant to CV diseases; to compile data and results that further elucidate the relevance of these peptides for several physiological events, conditions and diseases; and to discuss the metabolic impact of each hormone. We established connections between multiple peptides and the underlying condition/disease with tools such as STRING, referring to research using databases, such as UniProt, DisGeNET and Proteomics DB. Fig. 1 shows a network that summarizes the information presented in this chapter, which serves as a visual representation.
Collapse
Affiliation(s)
- Luís Perpétuo
- iBiMED, Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
| | | | - Francisco Amado
- LAQV-REQUIMTE, Departamento de Química, Universidade de Aveiro, Aveiro, Portugal
| | - Christophe Hirtz
- IRMB, Univ Montpellier, INSERM, CHU Montpellier, CNRS, Montpellier, France
| | - Rui Vitorino
- iBiMED, Department of Medical Sciences, University of Aveiro, Aveiro, Portugal; UnIC, Departamento de Cirurgia e Fisiologia, Faculdade de Medicina da Universidade do Porto, Porto, Portugal; LAQV-REQUIMTE, Departamento de Química, Universidade de Aveiro, Aveiro, Portugal.
| |
Collapse
|
34
|
Gontsarik M, Yaghmur A, Salentinig S. Dispersed liquid crystals as pH-adjustable antimicrobial peptide nanocarriers. J Colloid Interface Sci 2021; 583:672-682. [DOI: 10.1016/j.jcis.2020.09.081] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 09/15/2020] [Accepted: 09/19/2020] [Indexed: 02/06/2023]
|
35
|
Chang L, Bao H, Yao J, Liu H, Gou S, Zhong C, Zhang Y, Ni J. New designed pH-responsive histidine-rich peptides with antitumor activity. J Drug Target 2021; 29:651-659. [PMID: 33428507 DOI: 10.1080/1061186x.2021.1873351] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Anticancer peptides have received widespread attention as alternative antitumor therapeutics due to their unique action mode. However, the systemic toxicity hampers their successful utilisation in tumour therapy. Here, the tumour acidic environment was used as a trigger to design a series of histidine-rich peptides by optimising the distribution of histidine and leucine based on the amphiphilic peptide LK, in hoping to achieve desirable acid-activate anticancer peptides. Among all the obtained peptides, L9H5-1 showed enhanced antitumor activity at acidic pH concomitant with low toxicity at normal pH, exhibiting excellent pH-response. At acidic pH, protonated L9H5-1 could rapidly kill tumour cells by efficient membrane disruption as evidenced by in vitro experiments, including increasing intracellular PI uptake and LDH release, dramatic membrane damage and increase of later apoptotic/necrotic cells. Moreover, no cell cycle arrest was observed after treated with L9H5-1. Interestingly, this study found that the new peptides with the same number of histidines and leucines displayed different pH-dependent antitumor activity, indicating that the position of amino acid alteration is extremely important for the design of acid-activated histidine-rich peptides. In short, our work provides a new avenue to develop new acid-activated anticancer peptides as promising antitumor drugs with high efficiency and good selectivity.
Collapse
Affiliation(s)
- Linlin Chang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Hexin Bao
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Jia Yao
- The First Hospital, Lanzhou University, Lanzhou, China
| | - Hui Liu
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Sanhu Gou
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Chao Zhong
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Yun Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Jingman Ni
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,School of Pharmacy, Lanzhou University, Lanzhou, China.,State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macao, China
| |
Collapse
|
36
|
In vitro and In vivo Antibacterial Effects of Nisin Against Streptococcus suis. Probiotics Antimicrob Proteins 2021; 13:598-610. [PMID: 33404866 DOI: 10.1007/s12602-020-09732-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/08/2020] [Indexed: 01/01/2023]
Abstract
Nisin is a promising therapeutic candidate because of its potent activity against Gram-positive bacteria. The present study aimed to describe the in vitro and in vivo antibacterial effects of nisin against Streptococcus suis, an important zoonotic pathogen. The minimal inhibitory concentrations (MICs) and minimal bactericidal concentrations (MBCs) of nisin against different S. suis strains ranged from 0.12 to 4.0 μg/mL and from 0.25 to 8.0 μg/mL, respectively. Time-killing curve assays illustrated that nisin killed 100% of tested virulent S. suis strains within 4 h when used at 2× MIC, which indicates the rapid bactericidal activity of nisin against the bacteria. Transmission and scanning electron microscopy revealed that nisin destroyed S. suis cell membrane integrity and affected its cellular ultrastructure, including a significantly wrinkled surface, intracellular content leakage, and cell lysis. In addition, nisin inhibited biofilm formation by S. suis in a concentration-dependent manner and exhibited strong degrading activities against preformed biofilms. More importantly, nisin displayed antimicrobial activity against S. suis infection in vivo. Upon treatment with 5.0-10 mg/kg nisin solution, the survival rates of mice challenged with a lethal dose of virulent S. suis virulent ranged 87.5-100%. Nisin significantly decreased bacterial proliferation and translocation in the mouse spleen, brain, and blood. These results indicate that nisin has potential as a novel antimicrobial agent for the clinical treatment and prevention of infection caused by S. suis in animals.
Collapse
|
37
|
Qiu H, Si Z, Luo Y, Feng P, Wu X, Hou W, Zhu Y, Chan-Park MB, Xu L, Huang D. The Mechanisms and the Applications of Antibacterial Polymers in Surface Modification on Medical Devices. Front Bioeng Biotechnol 2020; 8:910. [PMID: 33262975 PMCID: PMC7686044 DOI: 10.3389/fbioe.2020.00910] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 07/15/2020] [Indexed: 01/04/2023] Open
Abstract
Medical device contamination caused by microbial pathogens such as bacteria and fungi has posed a severe threat to the patients' health in hospitals. Due to the increasing resistance of pathogens to antibiotics, the efficacy of traditional antibiotics treatment is gradually decreasing for the infection treatment. Therefore, it is urgent to develop new antibacterial drugs to meet clinical or civilian needs. Antibacterial polymers have attracted the interests of researchers due to their unique bactericidal mechanism and excellent antibacterial effect. This article reviews the mechanism and advantages of antimicrobial polymers and the consideration for their translation. Their applications and advances in medical device surface coating were also reviewed. The information will provide a valuable reference to design and develop antibacterial devices that are resistant to pathogenic infections.
Collapse
Affiliation(s)
- Haofeng Qiu
- School of Medicine, Ningbo University, Ningbo, China
| | - Zhangyong Si
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
| | - Yang Luo
- School of Medicine, Ningbo University, Ningbo, China
| | - Peipei Feng
- School of Medicine, Ningbo University, Ningbo, China
| | - Xujin Wu
- School of Medicine, Ningbo University, Ningbo, China
| | - Wenjia Hou
- School of Medicine, Ningbo University, Ningbo, China
| | - Yabin Zhu
- School of Medicine, Ningbo University, Ningbo, China
| | - Mary B. Chan-Park
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
| | - Long Xu
- Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo, China
| | - Dongmei Huang
- Ningbo Baoting Biotechnology Co., Ltd., Ningbo, China
| |
Collapse
|
38
|
Lachowicz JI, Szczepski K, Scano A, Casu C, Fais S, Orrù G, Pisano B, Piras M, Jaremko M. The Best Peptidomimetic Strategies to Undercover Antibacterial Peptides. Int J Mol Sci 2020; 21:E7349. [PMID: 33027928 PMCID: PMC7583890 DOI: 10.3390/ijms21197349] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/23/2020] [Accepted: 09/25/2020] [Indexed: 02/05/2023] Open
Abstract
Health-care systems that develop rapidly and efficiently may increase the lifespan of humans. Nevertheless, the older population is more fragile, and is at an increased risk of disease development. A concurrently growing number of surgeries and transplantations have caused antibiotics to be used much more frequently, and for much longer periods of time, which in turn increases microbial resistance. In 1945, Fleming warned against the abuse of antibiotics in his Nobel lecture: "The time may come when penicillin can be bought by anyone in the shops. Then there is the danger that the ignorant man may easily underdose himself and by exposing his microbes to non-lethal quantities of the drug make them resistant". After 70 years, we are witnessing the fulfilment of Fleming's prophecy, as more than 700,000 people die each year due to drug-resistant diseases. Naturally occurring antimicrobial peptides protect all living matter against bacteria, and now different peptidomimetic strategies to engineer innovative antibiotics are being developed to defend humans against bacterial infections.
Collapse
Affiliation(s)
- Joanna Izabela Lachowicz
- Department of Medical Sciences and Public Health, University of Cagliari, Cittadella Universitaria, 09042 Monserrato, Italy; (B.P.); (M.P.)
| | - Kacper Szczepski
- Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia;
| | - Alessandra Scano
- Department of Surgical Science, OBL Oral Biotechnology Laboratory, University of Cagliari, 09124 Cagliari, Italy; (A.S.); (C.C.); (S.F.); (G.O.)
| | - Cinzia Casu
- Department of Surgical Science, OBL Oral Biotechnology Laboratory, University of Cagliari, 09124 Cagliari, Italy; (A.S.); (C.C.); (S.F.); (G.O.)
| | - Sara Fais
- Department of Surgical Science, OBL Oral Biotechnology Laboratory, University of Cagliari, 09124 Cagliari, Italy; (A.S.); (C.C.); (S.F.); (G.O.)
| | - Germano Orrù
- Department of Surgical Science, OBL Oral Biotechnology Laboratory, University of Cagliari, 09124 Cagliari, Italy; (A.S.); (C.C.); (S.F.); (G.O.)
| | - Barbara Pisano
- Department of Medical Sciences and Public Health, University of Cagliari, Cittadella Universitaria, 09042 Monserrato, Italy; (B.P.); (M.P.)
| | - Monica Piras
- Department of Medical Sciences and Public Health, University of Cagliari, Cittadella Universitaria, 09042 Monserrato, Italy; (B.P.); (M.P.)
| | - Mariusz Jaremko
- Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia;
| |
Collapse
|
39
|
Liscano Y, Oñate-Garzón J, Delgado JP. Peptides with Dual Antimicrobial-Anticancer Activity: Strategies to Overcome Peptide Limitations and Rational Design of Anticancer Peptides. Molecules 2020; 25:E4245. [PMID: 32947811 PMCID: PMC7570524 DOI: 10.3390/molecules25184245] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/04/2020] [Accepted: 09/11/2020] [Indexed: 12/31/2022] Open
Abstract
Peptides are naturally produced by all organisms and exhibit a wide range of physiological, immunomodulatory, and wound healing functions. Furthermore, they can provide with protection against microorganisms and tumor cells. Their multifaceted performance, high selectivity, and reduced toxicity have positioned them as effective therapeutic agents, representing a positive economic impact for pharmaceutical companies. Currently, efforts have been made to invest in the development of new peptides with antimicrobial and anticancer properties, but the poor stability of these molecules in physiological environments has triggered a bottleneck. Therefore, some tools, such as nanotechnology and in silico approaches can be applied as alternatives to try to overcome these obstacles. In silico studies provide a priori knowledge that can lead to the development of new anticancer peptides with enhanced biological activity and improved stability. This review focuses on the current status of research in peptides with dual antimicrobial-anticancer activity, including advances in computational biology using in silico analyses as a powerful tool for the study and rational design of these types of peptides.
Collapse
Affiliation(s)
- Yamil Liscano
- Research Group of Chemical and Biotechnology, Faculty of Basic Sciences, Universidad Santiago de Cali, 760035 Cali, Colombia;
- Research Group of Genetics, Regeneration and Cancer, Institute of Biology, Universidad de Antioquia, 050010 Medellin, Colombia;
| | - Jose Oñate-Garzón
- Research Group of Chemical and Biotechnology, Faculty of Basic Sciences, Universidad Santiago de Cali, 760035 Cali, Colombia;
| | - Jean Paul Delgado
- Research Group of Genetics, Regeneration and Cancer, Institute of Biology, Universidad de Antioquia, 050010 Medellin, Colombia;
| |
Collapse
|
40
|
Degasperi M, Agostinis C, Mardirossian M, Maschio M, Taddio A, Bulla R, Scocchi M. The Anti-Pseudomonal Peptide D-BMAP18 Is Active in Cystic Fibrosis Sputum and Displays Anti-Inflammatory In Vitro Activity. Microorganisms 2020; 8:microorganisms8091407. [PMID: 32932703 PMCID: PMC7565916 DOI: 10.3390/microorganisms8091407] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/07/2020] [Accepted: 09/10/2020] [Indexed: 11/16/2022] Open
Abstract
Most Cystic Fibrosis (CF) patients succumb to airway inflammation and pulmonary infections due to Pseudomonas aeruginosa. D-BMAP18, a membrane-permeabilizing antimicrobial peptide composed of D-amino acids, was evaluated as a possible antibacterial aimed to address this issue. The antipseudomonal activity of D-BMAP18 was tested in a pathophysiological context. The peptide displayed activity against CF isolates of Pseudomonas aeruginosa in the presence of CF sputum when combined with sodium chloride and DNase I. In combination with DNase I, D-BMAP18 discouraged the deposition of new biofilm and eradicated preformed biofilms of some P. aeruginosa strains. In addition, D-BMAP18 down regulated the production of TNF-α, IL1-β, and TGF-β in LPS-stimulated or IFN-γ macrophages derived from THP-1 cells indicating an anti-inflammatory activity. The biocompatibility of D-BMAP18 was assessed using four different cell lines, showing that residual cell-specific cytotoxicity at bactericidal concentrations could be abolished by the presence of CF sputum. Overall, this study suggests that D-BMAP18 may be an interesting molecule as a starting point to develop a novel therapeutic agent to simultaneously contrast lung infections and inflammation in CF patients.
Collapse
Affiliation(s)
- Margherita Degasperi
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy; (M.D.); (R.B.)
| | - Chiara Agostinis
- Institute for Maternal and Child Health, IRCCS Burlo Garofolo, 34134 Trieste, Italy; (C.A.); (M.M.)
| | - Mario Mardirossian
- Department of Medical Sciences, University of Trieste, 34125 Trieste, Italy;
| | - Massimo Maschio
- Institute for Maternal and Child Health, IRCCS Burlo Garofolo, 34134 Trieste, Italy; (C.A.); (M.M.)
| | - Andrea Taddio
- Institute for Maternal and Child Health, IRCCS Burlo Garofolo, 34134 Trieste, Italy; (C.A.); (M.M.)
- Department of Medicine, Surgery and Health Sciences, University of Trieste, 34127 Trieste, Italy
| | - Roberta Bulla
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy; (M.D.); (R.B.)
| | - Marco Scocchi
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy; (M.D.); (R.B.)
- Correspondence:
| |
Collapse
|
41
|
Montalbán-López M, Cebrián R, Galera R, Mingorance L, Martín-Platero AM, Valdivia E, Martínez-Bueno M, Maqueda M. Synergy of the Bacteriocin AS-48 and Antibiotics against Uropathogenic Enterococci. Antibiotics (Basel) 2020; 9:antibiotics9090567. [PMID: 32887311 PMCID: PMC7558097 DOI: 10.3390/antibiotics9090567] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 08/28/2020] [Accepted: 08/31/2020] [Indexed: 01/01/2023] Open
Abstract
The genus Enterococcus comprises a ubiquitous group of Gram-positive bacteria that can cause diverse health care-associated infections. Their genome plasticity enables easy acquisition of virulence factors as well as antibiotic resistances. Urinary tract infections (UTIs) and catheter-associated UTIs are common diseases caused by enterococci. In this study, Enterococcus strains isolated from UTIs were characterized, showing that the majority were E. faecalis and contained several virulence factors associated to a better colonization of the urinary tract. Their susceptibility against the bacteriocin AS-48 and several antibiotics was tested. AS-48 is a potent circular bacteriocin that causes bacterial death by pore formation in the cell membrane. The interest of this bacteriocin is based on the potent inhibitory activity, the high stability against environmental conditions, and the low toxicity. AS-48 was active at concentrations below 10 mg/L even against antibiotic-resistant strains, whereas these strains showed resistance to, at least, seven of the 20 antibiotics tested. Moreover, the effect of AS-48 combined with antibiotics commonly used to treat UTIs was largely synergistic (with up to 100-fold MIC reduction) and only occasionally additive. These data suggest AS-48 as a potential novel drug to deal with or prevent enterococcal infections.
Collapse
|
42
|
Alford MA, Baquir B, Santana FL, Haney EF, Hancock REW. Cathelicidin Host Defense Peptides and Inflammatory Signaling: Striking a Balance. Front Microbiol 2020; 11:1902. [PMID: 32982998 PMCID: PMC7481365 DOI: 10.3389/fmicb.2020.01902] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 07/20/2020] [Indexed: 12/28/2022] Open
Abstract
Host-defense peptides (HDPs) are vital components of innate immunity in all vertebrates. While their antibacterial activity toward bacterial cells was the original focus for research, their ability to modulate immune and inflammatory processes has emerged as one of their major functions in the host and as a promising approach from which to develop novel therapeutics targeting inflammation and innate immunity. In this review, with particular emphasis on the cathelicidin family of peptides, the roles of natural HDPs are examined in managing immune activation, cellular recruitment, cytokine responses, and inflammation in response to infection, as well as their contribution(s) to various inflammatory disorders and autoimmune diseases. Furthermore, we discuss current efforts to develop synthetic HDPs as therapeutics aimed at restoring balance to immune responses that are dysregulated and contribute to disease pathologies.
Collapse
Affiliation(s)
- Morgan A. Alford
- Centre for Microbial Diseases and Immunity Research, University of British Columbia, Vancouver, BC, Canada
| | - Beverlie Baquir
- Centre for Microbial Diseases and Immunity Research, University of British Columbia, Vancouver, BC, Canada
| | - Felix L. Santana
- Centre for Microbial Diseases and Immunity Research, University of British Columbia, Vancouver, BC, Canada
- Departamento de Medicina Molecular y Bioprocesos, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Mexico
| | - Evan F. Haney
- Centre for Microbial Diseases and Immunity Research, University of British Columbia, Vancouver, BC, Canada
| | - Robert E. W. Hancock
- Centre for Microbial Diseases and Immunity Research, University of British Columbia, Vancouver, BC, Canada
| |
Collapse
|
43
|
Azuma E, Choda N, Odaki M, Yano Y, Matsuzaki K. Improvement of Therapeutic Index by the Combination of Enhanced Peptide Cationicity and Proline Introduction. ACS Infect Dis 2020; 6:2271-2278. [PMID: 32786298 DOI: 10.1021/acsinfecdis.0c00387] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Antimicrobial peptides (AMPs) are promising candidates for new therapeutics to combat the emergence of an increasing number of multidrug-resistant pathogens. However, a major obstacle to the systemic application of AMPs is their possible toxicity. In this study, we improved the therapeutic index of the typical AMP F5W-magainin 2 by simultaneously introducing positive charges (+9-+10) and Pro residues. The former and latter contributed to enhanced antimicrobial activity and reduced cytotoxicity, respectively. The results were sensitive to the positions of Pro substitution. The antimicrobial mechanism was considered to involve both membrane permeabilization and DNA binding. The latter was affected by the peptide charge but not the presence of Pro. The neutralization of lipopolysaccharides, another important role of AMPs, was not very sensitive to either the peptide charge or Pro introduction. This strategy using intrinsic amino acids is also promising from the viewpoints of the economic mass production of AMPs and safety of metabolized peptides.
Collapse
Affiliation(s)
- Erika Azuma
- Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan
| | - Naoki Choda
- Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan
| | - Mayu Odaki
- Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan
| | - Yoshiaki Yano
- Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan
| | - Katsumi Matsuzaki
- Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan
| |
Collapse
|
44
|
Zhu Y, Shao C, Li G, Lai Z, Tan P, Jian Q, Cheng B, Shan A. Rational Avoidance of Protease Cleavage Sites and Symmetrical End-Tagging Significantly Enhances the Stability and Therapeutic Potential of Antimicrobial Peptides. J Med Chem 2020; 63:9421-9435. [DOI: 10.1021/acs.jmedchem.0c00583] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yongjie Zhu
- Laboratory of Molecular Nutrition and Immunity. The Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Changxuan Shao
- Laboratory of Molecular Nutrition and Immunity. The Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Guoyu Li
- Laboratory of Molecular Nutrition and Immunity. The Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Zhenheng Lai
- Laboratory of Molecular Nutrition and Immunity. The Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Peng Tan
- Laboratory of Molecular Nutrition and Immunity. The Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Qiao Jian
- Laboratory of Molecular Nutrition and Immunity. The Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Baojing Cheng
- Laboratory of Molecular Nutrition and Immunity. The Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Anshan Shan
- Laboratory of Molecular Nutrition and Immunity. The Institute of Animal Nutrition, Northeast Agricultural University, Harbin 150030, P. R. China
| |
Collapse
|
45
|
Divyashree M, Mani MK, Reddy D, Kumavath R, Ghosh P, Azevedo V, Barh D. Clinical Applications of Antimicrobial Peptides (AMPs): Where do we Stand Now? Protein Pept Lett 2020; 27:120-134. [PMID: 31553285 DOI: 10.2174/0929866526666190925152957] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 04/24/2019] [Accepted: 08/04/2019] [Indexed: 12/12/2022]
Abstract
In this era of multi-drug resistance (MDR), antimicrobial peptides (AMPs) are one of the most promising classes of potential drug candidates to combat communicable as well as noncommunicable diseases such as cancers and diabetes. AMPs show a wide spectrum of biological activities which include antiviral, antifungal, anti-mitogenic, anticancer, and anti-inflammatory properties. Apart from these prospective therapeutic potentials, the AMPs can act as food preservatives and immune modulators. Therefore, AMPs have the potential to replace conventional drugs and may gain a significant global drug market share. Although several AMPs have shown therapeutic potential in vitro or in vivo, in most cases they have failed the clinical trial owing to various issues. In this review, we discuss in brief (i) molecular mechanisms of AMPs in various diseases, (ii) importance of AMPs in pharmaceutical industries, (iii) the challenges in using AMPs as therapeutics and how to overcome, (iv) available AMP therapeutics in market, and (v) AMPs under clinical trials. Here, we specifically focus on the therapeutic AMPs in the areas of dermatology, surgery, oncology and metabolic diseases.
Collapse
Affiliation(s)
- Mithoor Divyashree
- Nitte University Centre for Science Education & Research (NUCSER), NITTE (Deemed to be University), Paneer campus, Deralakatte, Mangalore - 575018, Karnataka,India
| | - Madhu K Mani
- Nitte University Centre for Science Education & Research (NUCSER), NITTE (Deemed to be University), Paneer campus, Deralakatte, Mangalore - 575018, Karnataka,India
| | - Dhanasekhar Reddy
- Department of Genomic Science, School of Biological Sciences, Central University of Kerala, Tejaswini Hills, Periya (P.O) Kasaragod, Kerala-671316,India
| | - Ranjith Kumavath
- Department of Genomic Science, School of Biological Sciences, Central University of Kerala, Tejaswini Hills, Periya (P.O) Kasaragod, Kerala-671316,India
| | - Preetam Ghosh
- Department of Computer Science, Virginia Commonwealth University, Richmond, VA 23284,United States
| | - Vasco Azevedo
- Laboratório de GenéticaCelular e Molecular, Programa de Pós-graduaçãoemBioinformática, Instituto de CiênciasBiológicas (ICB), Universidade Federal de Minas Gerais, Av. Antonio Carlos 6627, Pampulha, Belo Horizonte, CEP 31270-901,Brazil
| | - Debmalya Barh
- Nitte University Centre for Science Education & Research (NUCSER), NITTE (Deemed to be University), Paneer campus, Deralakatte, Mangalore - 575018, Karnataka,India.,Centre for Genomics and Applied Gene Technology, Institute of Integrative Omics and Applied Biotechnology (IIOAB), Nonakuri, PurbaMedinipur, West Bengal, India
| |
Collapse
|
46
|
Bhopale GM. Antimicrobial Peptides: A Promising Avenue for Human Healthcare. Curr Pharm Biotechnol 2020; 21:90-96. [PMID: 31612826 DOI: 10.2174/1389201020666191011121722] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/30/2019] [Accepted: 09/17/2019] [Indexed: 02/07/2023]
Abstract
Antimicrobial drugs resistant microbes have been observed worldwide and therefore alternative development of antimicrobial peptides has gained interest in human healthcare. Enormous progress has been made in the development of antimicrobial peptide during the last decade due to major advantages of AMPs such as broad-spectrum activity and low levels of induced resistance over the current antimicrobial agents. This review briefly provides various categories of AMP, their physicochemical properties and mechanism of action which governs their penetration into microbial cell. Further, the recent information on current status of antimicrobial peptide development, their applications and perspective in human healthcare are also described.
Collapse
Affiliation(s)
- Girish M Bhopale
- Microbial Diversity Research Centre, Dr. D.Y. Patil Biotechnology & Bioinformatics Institute, Dr. D.Y. Patil Vidhyapeeth, Tathawade, Pune, 411033, M.S, India
| |
Collapse
|
47
|
Mejía-Argueta EL, Santillán Benítez JG, Ortiz-Reynoso M. Antimicrobial peptides, an alternative to combat bacterial resistance. ACTA BIOLÓGICA COLOMBIANA 2020. [DOI: 10.15446/abc.v25n2.77407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Antimicrobial peptides of higher organisms have been studied for the past 25 years, and their importance as components of innate immunity is now well established. The essential simplicity of their chemical structure, along with the lower likelihood of developed resistance compared to conventional antibiotics, has made them attractive candidates for development as therapeutics. The objective of this review article is to describe the current relevance, main mechanisms presented, and the uses of antimicrobial peptides as new therapies in the clinical area. The information used was mainly compiled from scientific articles based on a systematic review of scientific papers with data on human antimicrobial peptides (AMPs) and their different applications, searching without date limits and only documents in English and Spanish. Gray literature was accessed through manual search, and no restrictions were made involving study design for a retrospective study. Although these products have not yet been commercialized, they have advantages over the currently available treatments since they are not expected to cause bacterial resistance due to their three-dimensional structure, amphipathic tendency, and cationic character; however, the technique of peptide production is still new and is in the early stages of innovation of new molecules.
Collapse
|
48
|
Cao C, Wu X, Zheng Y, Chen Y. Three-dimensional cubic ordered mesoporous carbon with chitosan for capacitive deionization disinfection of water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:15001-15010. [PMID: 32067173 DOI: 10.1007/s11356-020-07941-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 01/29/2020] [Indexed: 06/10/2023]
Abstract
Three-dimensional cubic ordered mesoporous carbon with chitosan (Ia3d-CS), which was synthesized via exothermic reaction between liquid potassium and carbon monoxide gas, was coated on the active carbon (AC) electrode as a capacitive deionization (CDI) disinfection electrode. The results showed that Ia3d-CS-2 as CDI electrode exhibited the quick ion diffusion and strong charge transfer performance, due to the three-dimensional pore structure and specific surface area. The electrode of Ia3d-CS-2 displayed a specific capacity of 191.22 F/g at a scan rate of 100 mV·s-1 in 0.5 M NaCl aqueous solution. In a CDI recycling system, Ia3d-CS-x electrode showed good cyclic stability, and the electrosorption capacity of Ia3d-CS-2 electrode can achieve 1.31 mg/g at 1.2 V in 100 mg/l NaCl aqueous solutions. Subsequently, Ia3d-CS-2 electrode had an excellent disinfection efficiency of killing about 99.99% Escherichia coli within 30 min during the CDI process at applied 1.2 V. Considering those excellent properties of the fabricated Ia3d-CS-x electrode, which should be a better candidate for high-performance deionization application.
Collapse
Affiliation(s)
- Cuihui Cao
- Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaofeng Wu
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Yuming Zheng
- Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
| | - Yunfa Chen
- Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
| |
Collapse
|
49
|
Ordered Mesoporous Carbon with Chitosan for Disinfection of Water via Capacitive Deionization. NANOMATERIALS 2020; 10:nano10030489. [PMID: 32182736 PMCID: PMC7153265 DOI: 10.3390/nano10030489] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/11/2020] [Accepted: 01/30/2020] [Indexed: 11/23/2022]
Abstract
Capacitive deionization (CDI) with water disinfection materials is a potential method to produce fresh water from aqueous solutions. Therefore, an ordered mesoporous carbon with chitosan (OMC-CS) was coated on the active carbon (AC) electrode as a capacitive deionization disinfection (CDI) electrode. Comparing with OMC-CS-4,6,8 as CDI electrodes, it was found that OMC-CS-6 as a CDI electrode had an excellent disinfection efficiency, killing about 99.99% Escherichia coli (E. coli) in the CDI process at an applied 1.2 V. The OMC-CS material was did not pollute the water and will not contaminate to the environment in comparison with other chemical antibacterial agents. This CDI electrode could play a huge role in biocontaminated water in the future.
Collapse
|
50
|
Innocenti Malini R, Zabara M, Gontsarik M, Maniura-Weber K, Rossi RM, Spano F, Salentinig S. Self-assembly of glycerol monooleate with the antimicrobial peptide LL-37: a molecular dynamics study. RSC Adv 2020; 10:8291-8302. [PMID: 35497861 PMCID: PMC9049931 DOI: 10.1039/c9ra10037g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 02/04/2020] [Indexed: 11/21/2022] Open
Abstract
Over the past decade, the rapid increase in the incidence of antibiotic-resistant bacteria has promoted research towards alternative therapeutics such as antimicrobial peptides (AMPs), but their biodegradability limits their application. Encapsulation into nanocarriers based on the self-assembly of surfactant-like lipids is emerging as a promising strategy for the improvement of AMPs' stability and their protection against degradation when in biological media. An in-depth understanding of the interactions between the structure-forming lipids and AMPs is required for the design of nanocarriers. This in silico study, demonstrates the self-assembly of the amphiphilic lipid glycerol monooleate (GMO) with the antimicrobial peptide LL-37 into nanocarriers on the molecular scale. Molecular dynamics (MD) simulations show the formation of direct micelles, with either one or two interacting LL-37, and vesicles in this two-component system in agreement with experimental results from small-angle X-ray scattering studies. The hydrophobic contacts between LL-37 and GMOs in water appear responsible for the formation of these nanoparticles. The results also suggest that the enhanced antimicrobial efficiency of LL-37 in these nanocarriers that was previously observed experimentally can be explained by the availability of its side chains with charged amino acids, an increase of the electrostatic interaction and a decrease of the peptide's conformational entropy upon interacting with GMO. The results of this study contribute to the fundamental understanding of lipid-AMP interactions and may guide the comprehensive design of lipid-based self-assembled nanocarriers for antimicrobial peptides.
Collapse
Affiliation(s)
- R Innocenti Malini
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
| | - M Zabara
- Laboratory for Biointerfaces, Department Materials meet Life Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
| | - M Gontsarik
- Laboratory for Biointerfaces, Department Materials meet Life Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
| | - K Maniura-Weber
- Laboratory for Biointerfaces, Department Materials meet Life Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
| | - R M Rossi
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
| | - F Spano
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
| | - S Salentinig
- Laboratory for Biointerfaces, Department Materials meet Life Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
- Department of Chemistry, University of Fribourg Chemin du Musée 9 1700 Fribourg Switzerland
| |
Collapse
|