1
|
Zhang Y, Zheng M, Wang Z, Liu Z, Chen S, Li X, Shi Y, Hu H. Discovery of novel antibacterial agent for the infected wound treatment: all-hydrocarbon stapling optimization of LL-37. Theranostics 2024; 14:1181-1194. [PMID: 38323312 PMCID: PMC10845205 DOI: 10.7150/thno.87916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 12/28/2023] [Indexed: 02/08/2024] Open
Abstract
Rationale: Antimicrobial peptide LL-37 has been recognized as a favorable alternative to antibiotics due to its broad antibacterial spectrum, low resistance development and diverse biological activities. However, its high manufactory cost, poor proteolytic stability, and unpredictable cytotoxicity seriously hindered its medical translation. Methods: To push the frontiers of its clinical application, all-hydrocarbon stapling strategy was exploited here for the structural modification of KR-12, the core and minimal fragment of LL-37. Results: Based on a library of KR-12 derivatives that designed and synthesized to be stapled at positions of either i, i+4 or i, i+7, structure to activity relationship was investigated. Among them, KR-12(Q5, D9) with the glutamine and aspartic acid residues stapled displayed increased helical content and positive charge. The reinforced α-helical conformation not only protected it from proteolytic hydrolysis but also improved its antibacterial efficacy via effective membrane perturbation and anti-inflammatory efficacy via compact LPS binding. Besides, the increased positive charge endowed it with an enhanced therapeutic index. On infected wound mouse model, it was demonstrated to eliminate bacteria and promote wound closure and regeneration effectively. Conclusion: Overall, the all-hydrocarbon stapling was proven to lay the foundation for the future development of antibacterial agents. KR-12(Q5, D9) could serve as a lead compound for the clinical treatment of bacterial infections.
Collapse
Affiliation(s)
- Yanan Zhang
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China
- School of Medicine, Shanghai University, Shanghai 200444, China
| | - Mengjun Zheng
- School of Pharmacy, Naval Medical University, Shanghai 200433, China
| | - Zhe Wang
- Institute of Bioengineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Zhinan Liu
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China
- School of Medicine, Shanghai University, Shanghai 200444, China
| | - Sumeng Chen
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China
- School of Medicine, Shanghai University, Shanghai 200444, China
| | - Xiang Li
- School of Pharmacy, Naval Medical University, Shanghai 200433, China
| | - Yejiao Shi
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China
| | - Honggang Hu
- School of Medicine, Shanghai University, Shanghai 200444, China
| |
Collapse
|
2
|
Gao N, Wang J, Fang C, Bai P, Sun Y, Wu W, Shan A. Combating bacterial infections with host defense peptides: Shifting focus from bacteria to host immunity. Drug Resist Updat 2024; 72:101030. [PMID: 38043443 DOI: 10.1016/j.drup.2023.101030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 11/12/2023] [Accepted: 11/26/2023] [Indexed: 12/05/2023]
Abstract
The increasing prevalence of multidrug-resistant bacterial infections necessitates the exploration of novel paradigms for anti-infective therapy. Antimicrobial peptides (AMPs), also known as host defense peptides (HDPs), have garnered extensive recognition as immunomodulatory molecules that leverage natural host mechanisms to enhance therapeutic benefits. The unique immune mechanism exhibited by certain HDPs that involves self-assembly into supramolecular nanonets capable of inducing bacterial agglutination and entrapping is significantly important. This process effectively prevents microbial invasion and subsequent dissemination and significantly mitigates selective pressure for the evolution of microbial resistance, highlighting the potential of HDP-based antimicrobial therapy. Recent advancements in this field have focused on developing bio-responsive materials in the form of supramolecular nanonets. A comprehensive overview of the immunomodulatory and bacteria-agglutinating activities of HDPs, along with a discussion on optimization strategies for synthetic derivatives, is presented in this article. These optimized derivatives exhibit improved biological properties and therapeutic potential, making them suitable for future clinical applications as effective anti-infective therapeutics.
Collapse
Affiliation(s)
- Nan Gao
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, PR China
| | - Jiajun Wang
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, PR China.
| | - Chunyang Fang
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, PR China
| | - Pengfei Bai
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, PR China
| | - Yu Sun
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, PR China
| | - Wanpeng Wu
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, PR China
| | - Anshan Shan
- Animal Science and Technology College, Northeast Agricultural University, Harbin 150030, PR China.
| |
Collapse
|
3
|
Rizzetto G, Gambini D, Maurizi A, Molinelli E, De Simoni E, Pallotta F, Brescini L, Cirioni O, Offidani A, Simonetti O, Giacometti A. The sources of antimicrobial peptides against Gram-positives and Gramnegatives: our research experience. LE INFEZIONI IN MEDICINA 2023; 31:306-322. [PMID: 37701381 PMCID: PMC10495054 DOI: 10.53854/liim-3103-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 07/03/2023] [Indexed: 09/14/2023]
Abstract
Antibiotic resistance of Gram-positive and Gramnegative bacteria is becoming increasingly prevalent. For this reason, the search for new molecules that can overcome current resistance and also recover antibiotics that are no longer effective is becoming increasingly urgent. Our research group at the 'Polytechnic University of Marche' managed to study the effectiveness of certain antimicrobial peptides (AMPs). We decided to review our experience with AMPs by classifying them according to their origin and evaluating their effect on Gram-negative and Gram-positive bacteria. AMPs can derive from mammals, amphibians, microorganisms, and insects. In conclusion, our research experience shows that the richest source of AMPs are amphibians. However, the studies done are mainly in vitro or in animal models, requiring further human studies to assess the efficacy and safety of these molecules. AMPs may be a new therapeutic option for infections sustained by multi-resistant micro-organisms and for overcoming the mechanisms of resistance to antibiotics currently used. In particular, combining AMPs with antibiotics, including those with limited antimicrobial activity due to antimicrobial resistance, has often shown a synergistic effect, increasing or restoring their efficacy. The possibility of using manageable and relatively safe antibiotics again is crucial, considering the widespread increase in bacterial resistance in hospitals and the community. Despite a plethora of research on AMPs and their application as potential treatment on infectious diseases, this area needs further exploration. There is evidence that the characteristics of AMPs can seriously improve through structural chemical modifications and different delivery systems to become alternatives drugs to conventional antibiotics. The aim is to provide an overview of the possible sources from which AMPs are extracted, evaluating their action exclusively on Gram-positive and negative bacteria. This is to determine, based on our experience, which might be the most promising sources of AMPs for future research as well.
Collapse
Affiliation(s)
- Giulio Rizzetto
- Clinic of Dermatology, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Daisy Gambini
- Clinic of Dermatology, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Andrea Maurizi
- Clinic of Dermatology, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Elisa Molinelli
- Clinic of Dermatology, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Edoardo De Simoni
- Clinic of Dermatology, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Francesco Pallotta
- Clinic of Infectious Diseases, Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy
| | - Lucia Brescini
- Clinic of Infectious Diseases, Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy
| | - Oscar Cirioni
- Clinic of Infectious Diseases, Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy
| | - Annamaria Offidani
- Clinic of Dermatology, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Oriana Simonetti
- Clinic of Dermatology, Department of Clinical and Molecular Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Andrea Giacometti
- Clinic of Infectious Diseases, Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy
| |
Collapse
|
4
|
Hu Q, Chen C, Lin Z, Zhang L, Guan S, Zhuang X, Dong G, Shen J. The Antimicrobial Peptide Esculentin-1a(1-21)NH 2 Stimulates Wound Healing by Promoting Angiogenesis through the PI3K/AKT Pathway. Biol Pharm Bull 2023; 46:382-393. [PMID: 36385013 DOI: 10.1248/bpb.b22-00098] [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: 11/17/2022]
Abstract
Delayed wound healing is a persistent medical problem mainly caused by decreased angiogenesis. Esculentin-1a(1-21)NH2 [Esc-1a(1-21)NH2], has broad-spectrum antibacterial properties which comes from frog skins. It has shown promise as a treatment for wound healing. However, its effects on angiogenesis as well as the mechanism by which esc-1a(1-21)NH2 enhanced wound healing remained unclear. In this study, we analyzed the structural properties and biocompatibility of esc-1a(1-21)NH2 and evaluated its effect on wound closure using a full-thickness excision model in mice. Our results showed that esc-1a(1-21)NH2 significantly accelerated wound healing by increasing collagen deposition and angiogenesis, characterized by elevated expression levels of platelet, endothelial cell adhesion molecule-1 (CD31) and proliferating cell nuclear antigen (PCNA). Furthermore, the angiogenic activity of esc-1a(1-21)NH2 was confirmed in vitro by various assays. Esc-1a(1-21)NH2 significantly promoted cell migration and cell proliferation in human umbilical vein vascular endothelial cells (HUVECs) via activation of the phosphatidylinositol 3'-kinase (PI3K)/protein kinase B (AKT) pathway, and upregulated the expression of CD31 at both mRNA and protein levels. The effect of esc-1a(1-21)NH2 on angiogenesis was diminished by LY294002, a PI3K pathway inhibitor. Taken together, this study demonstrates that esc-1a(1-21)NH2 accelerates wound closure in mice by promoting angiogenesis via the PI3K/AKT signaling pathway, suggesting its effective application in the treatment of wound healing.
Collapse
Affiliation(s)
- Qiong Hu
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University
| | - Chujun Chen
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University
| | - Zhenming Lin
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University
| | - Liyao Zhang
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University
| | - Sujiuan Guan
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University
| | - Xiaoyan Zhuang
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University
| | - Guangfu Dong
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences
| | - Juan Shen
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University
| |
Collapse
|
5
|
Our Experience over 20 Years: Antimicrobial Peptides against Gram Positives, Gram Negatives, and Fungi. Pharmaceutics 2022; 15:pharmaceutics15010040. [PMID: 36678669 PMCID: PMC9862542 DOI: 10.3390/pharmaceutics15010040] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/04/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022] Open
Abstract
Antibiotic resistance is rapidly increasing, and new anti-infective therapies are urgently needed. In this regard, antimicrobial peptides (AMPs) may represent potential candidates for the treatment of infections caused by multiresistant microorganisms. In this narrative review, we reported the experience of our research group over 20 years. We described the AMPs we evaluated against Gram-positive, Gram-negative, and fungi. In conclusion, our experience shows that AMPs can be a key option for treating multiresistant infections and overcoming resistance mechanisms. The combination of AMPs allows antibiotics and antifungals that are no longer effective to exploit the synergistic effect by restoring their efficacy. A current limitation includes poor data on human patients, the cost of some AMPs, and their safety, which is why studies on humans are needed as soon as possible.
Collapse
|
6
|
Biopolymer-Based Wound Dressings with Biochemical Cues for Cell-Instructive Wound Repair. Polymers (Basel) 2022; 14:polym14245371. [PMID: 36559739 PMCID: PMC9783382 DOI: 10.3390/polym14245371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/25/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022] Open
Abstract
Regenerative medicine is an active research sphere that focuses on the repair, regeneration, and replacement of damaged tissues and organs. A plethora of innovative wound dressings and skin substitutes have been developed to treat cutaneous wounds and are aimed at reducing the length or need for a hospital stay. The inception of biomaterials with the ability to interact with cells and direct them toward desired lineages has brought about innovative designs in wound healing and tissue engineering. This cellular engagement is achieved by cell cues that can be biochemical or biophysical in nature. In effect, these cues seep into innate repair pathways, cause downstream cell behaviours and, ultimately, lead to advantageous healing. This review will focus on biomolecules with encoded biomimetic, instructive prompts that elicit desired cellular domino effects to achieve advanced wound repair. The wound healing dressings covered in this review are based on functionalized biopolymeric materials. While both biophysical and biochemical cues are vital for advanced wound healing applications, focus will be placed on biochemical cues and in vivo or clinical trial applications. The biochemical cues aforementioned will include peptide therapy, collagen matrices, cell-based therapy, decellularized matrices, platelet-rich plasma, and biometals.
Collapse
|
7
|
Kang Y, Zhang C, He Y, Zhang Z, Liu H, Wei Z, Yang J. Thalidomide Attenuates Skin Lesions and Inflammation in Rosacea-Like Mice Induced by Long-Term Exposure of LL-37. Drug Des Devel Ther 2022; 16:4127-4138. [PMID: 36483458 PMCID: PMC9724583 DOI: 10.2147/dddt.s393122] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 11/24/2022] [Indexed: 12/03/2022] Open
Abstract
Purpose Most of the existing studies focus on the early inflammation of rosacea, with few interventions on the later development of fibrosis and the relationship between thalidomide and rosacea. The purpose of this study was to construct a long-term induction model and explore the effects of thalidomide on the later stage of inflammation and early stage of fibrosis in rosacea. Patients and Methods BALB/c male mice were randomly divided into four groups: control group, control plus thalidomide group, LL-37 group and LL-37 plus thalidomide group, Intradermal and intraperitoneal injections were given. After repeated induction, skin changes were recorded by taking photos. The animals were sacrificed, the back skin was used for HE staining and VG staining to detect histomorphological characteristics. Immunofluorescence staining and Western blot were used to detect the expression of inflammatory and fibrosis-related factors. Results The results were compared with the early stage of the model, wherein the skin inflammation of the 20-day mice was more obvious with a trend of fibrosis. Compared with the control group, histopathological examination showed that the inflammatory cell infiltration in the LL-37 group was significantly increased, and the skin was thickened with collagen deposition. LL-37 induction significantly increased the expression of inflammatory markers (eg, TNF-α and IL-1β) and fibrotic markers (eg, COL1, α-SMA, vimentin and N-Cadherin). Intervention with thalidomide significantly reduced erythema, inflammatory cell infiltration, collagen deposition, and down-regulate the expression of inflammation and fibrosis related factors in rosacea mice. Conclusion The long-term continuous induction of LL-37 in mice could simulate the occurrence and development of rosacea, and thalidomide could ameliorate the rosacea induced by long-term exposure to LL-37 by regulating inflammatory infiltration, collagen deposition and fibrosis-related processes.
Collapse
Affiliation(s)
- Yumeng Kang
- Department of Dermatology, Affiliated Hospital of North China University of Science and Technology, Tangshan, People’s Republic of China
| | - Chuanxi Zhang
- Department of Dermatology, Affiliated Hospital of North China University of Science and Technology, Tangshan, People’s Republic of China
| | - Yang He
- Department of Dermatology, Affiliated Hospital of North China University of Science and Technology, Tangshan, People’s Republic of China
| | - Ziyan Zhang
- Department of Dermatology, Affiliated Hospital of North China University of Science and Technology, Tangshan, People’s Republic of China
| | - Heliang Liu
- Hebei Key Laboratory for Organ Fibrosis Research, School of Public Health, North China University of Science and Technology, Tangshan, People’s Republic of China
| | - Zhongqiu Wei
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, People’s Republic of China,Correspondence: Zhongqiu Wei, School of Basic Medical Sciences, North China University of Science and Technology, 21 Bohai Avenue, New City, Caofeidian District, Tangshan City, Hebei Province, People’s Republic of China, Tel +86-135-8258-8338, Email
| | - Jie Yang
- Department of Dermatology, Affiliated Hospital of North China University of Science and Technology, Tangshan, People’s Republic of China,Jie Yang, Department of Dermatology, Affiliated Hospital of North China University of Science and Technology, 73 Jianshe South Road, Lubei District, Tangshan City, Hebei Province, People’s Republic of China, +86-188-3250-6999, Email
| |
Collapse
|
8
|
Brock AK, Chamoun-Emanuelli AM, Howard EA, Huntzinger KD, Lawhon SD, Bryan LK, Cosgriff-Hernandez EM, Cohen ND, Whitfield-Cargile CM. Wound swabs versus biopsies to detect methicillin resistant Staphylococcus aureus in experimental equine wounds. Vet Surg 2022; 51:1196-1205. [PMID: 36102600 PMCID: PMC9588683 DOI: 10.1111/vsu.13872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 07/10/2022] [Accepted: 07/16/2022] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To compare: (1) the load and diversity of cultivatable bacterial species isolated from tissue biopsies with cultures from surface swabs, and (2) the ability of each technique to detect methicillin-resistant Staphylococcus aureus (MRSA) in a model of MRSA-infected equine wounds. STUDY DESIGN Experimental in vivo study. ANIMALS Three light-breed adult horses. METHODS Four 2.5 × 2.5 cm full-thickness skin wounds were created on the dorsolateral aspect of each forelimb. Five days later, each wound was inoculated with a pure culture of MRSA (ATCC 43300). One hundred microlitres of 0, 5 × 108 , 5 × 109 or 5 × 1010 colony forming units (CFU)/ml was used to inoculate each wound. Surface swabs (Levine technique) and tissue biopsy samples (3 mm punch biopsy) were obtained at 2, 7, 14, and 21 days after inoculation. Quantitative aerobic culture was performed using routine clinical techniques. RESULTS A similar bacterial profile was identified from the culture of each wound-sampling technique and there was moderate correlation (R = 0.49, P < .001) between the bacterial bioburdens. Agreement was fair (κ = 0.31; 95% CI, 0.129-0.505) between the sampling techniques in identification of MRSA. Methicillin-resistant Staphylococcus aureus was isolated more frequently (P = .016) from cultures of tissue biopsies (79%; 76/96) than from surface swabs (62%; 60/96). CONCLUSION Bacterial load and diversity did not differ between sampling techniques but MRSA was detected more often from the cultures of tissue biopsies. CLINICAL SIGNIFICANCE Tissue biopsy should be preferred to culture swab in wounds where MRSA is suspected.
Collapse
Affiliation(s)
- Abbi K. Brock
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX 77843
| | - Ana M. Chamoun-Emanuelli
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX 77843
| | - Emily A. Howard
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX 77843
| | - Katie D. Huntzinger
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX 77843
| | - Sara D. Lawhon
- Department of Veterinary Pathobiology, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX 77843
| | - Laura K. Bryan
- Department of Veterinary Pathobiology, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX 77843
| | | | - Noah D. Cohen
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX 77843
| | - Canaan M. Whitfield-Cargile
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX 77843
| |
Collapse
|
9
|
Masimen MAA, Harun NA, Maulidiani M, Ismail WIW. Overcoming Methicillin-Resistance Staphylococcus aureus (MRSA) Using Antimicrobial Peptides-Silver Nanoparticles. Antibiotics (Basel) 2022; 11:antibiotics11070951. [PMID: 35884205 PMCID: PMC9311968 DOI: 10.3390/antibiotics11070951] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/07/2022] [Accepted: 07/12/2022] [Indexed: 02/04/2023] Open
Abstract
Antibiotics are regarded as a miracle in the medical field as it prevents disease caused by pathogenic bacteria. Since the discovery of penicillin, antibiotics have become the foundation for modern medical discoveries. However, bacteria soon became resistant to antibiotics, which puts a burden on the healthcare system. Methicillin-resistant Staphylococcus aureus (MRSA) has become one of the most prominent antibiotic-resistant bacteria in the world since 1961. MRSA primarily developed resistance to beta-lactamases antibiotics and can be easily spread in the healthcare system. Thus, alternatives to combat MRSA are urgently required. Antimicrobial peptides (AMPs), an innate host immune agent and silver nanoparticles (AgNPs), are gaining interest as alternative treatments against MRSA. Both agents have broad-spectrum properties which are suitable candidates for controlling MRSA. Although both agents can exhibit antimicrobial effects independently, the combination of both can be synergistic and complementary to each other to exhibit stronger antimicrobial activity. The combination of AMPs and AgNPs also reduces their own weaknesses as their own, which can be developed as a potential agent to combat antibiotic resistance especially towards MRSA. Thus, this review aims to discuss the potential of antimicrobial peptides and silver nanoparticles towards controlling MRSA pathogen growth.
Collapse
Affiliation(s)
- Mohammad Asyraf Adhwa Masimen
- Cell Signalling and Biotechnology Research Group (CeSBTech), Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia;
| | - Noor Aniza Harun
- Advanced NanoMaterials (ANOMA) Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia;
| | - M. Maulidiani
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia;
| | - Wan Iryani Wan Ismail
- Cell Signalling and Biotechnology Research Group (CeSBTech), Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia;
- Biological Security and Sustainability Research Group (BIOSES), Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia
- Correspondence:
| |
Collapse
|
10
|
Le MNT, Kawada-Matsuo M, Komatsuzawa H. Efficiency of Antimicrobial Peptides Against Multidrug-Resistant Staphylococcal Pathogens. Front Microbiol 2022; 13:930629. [PMID: 35756032 PMCID: PMC9218695 DOI: 10.3389/fmicb.2022.930629] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 05/18/2022] [Indexed: 11/13/2022] Open
Abstract
Antibiotics play a vital role in saving millions of lives from fatal infections; however, the inappropriate use of antibiotics has led to the emergence and propagation of drug resistance worldwide. Multidrug-resistant bacteria represent a significant challenge to treating infections due to the limitation of available antibiotics, necessitating the investigation of alternative treatments for combating these superbugs. Under such circumstances, antimicrobial peptides (AMPs), including human-derived AMPs and bacteria-derived AMPs (so-called bacteriocins), are considered potential therapeutic drugs owing to their high efficacy against infectious bacteria and the poor ability of these microorganisms to develop resistance to them. Several staphylococcal species including Staphylococcus aureus, Staphylococcus epidermidis, Staphylococcus haemolyticus, and Staphylococcus saprophyticus are commensal bacteria and known to cause many opportunistic infectious diseases. Methicillin-resistant Staphylococci, especially methicillin-resistant S. aureus (MRSA), are of particular concern among the critical multidrug-resistant infectious Gram-positive pathogens. Within the past decade, studies have reported promising AMPs that are effective against MRSA and other methicillin-resistant Staphylococci. This review discusses the sources and mechanisms of AMPs against staphylococcal species, as well as their potential to become chemotherapies for clinical infections caused by multidrug-resistant staphylococci.
Collapse
Affiliation(s)
- Mi Nguyen-Tra Le
- Department of Bacteriology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Miki Kawada-Matsuo
- Department of Bacteriology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hitoshi Komatsuzawa
- Department of Bacteriology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| |
Collapse
|
11
|
Simonetti O, Rizzetto G, Radi G, Molinelli E, Cirioni O, Giacometti A, Offidani A. New Perspectives on Old and New Therapies of Staphylococcal Skin Infections: The Role of Biofilm Targeting in Wound Healing. Antibiotics (Basel) 2021; 10:antibiotics10111377. [PMID: 34827315 PMCID: PMC8615132 DOI: 10.3390/antibiotics10111377] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 11/06/2021] [Accepted: 11/07/2021] [Indexed: 12/31/2022] Open
Abstract
Among the most common complications of both chronic wound and surgical sites are staphylococcal skin infections, which slow down the wound healing process due to various virulence factors, including the ability to produce biofilms. Furthermore, staphylococcal skin infections are often caused by methicillin-resistant Staphylococcus aureus (MRSA) and become a therapeutic challenge. The aim of this narrative review is to collect the latest evidence on old and new anti-staphylococcal therapies, assessing their anti-biofilm properties and their effect on skin wound healing. We considered antibiotics, quorum sensing inhibitors, antimicrobial peptides, topical dressings, and antimicrobial photo-dynamic therapy. According to our review of the literature, targeting of biofilm is an important therapeutic choice in acute and chronic infected skin wounds both to overcome antibiotic resistance and to achieve better wound healing.
Collapse
Affiliation(s)
- Oriana Simonetti
- Department of Clinical and Molecular Sciences Clinic of Dermatology, Polytechnic University of Marche, 60020 Ancona, Italy; (G.R.); (G.R.); (E.M.); (A.O.)
- Correspondence: ; Tel.: +39-0-715-963-494
| | - Giulio Rizzetto
- Department of Clinical and Molecular Sciences Clinic of Dermatology, Polytechnic University of Marche, 60020 Ancona, Italy; (G.R.); (G.R.); (E.M.); (A.O.)
| | - Giulia Radi
- Department of Clinical and Molecular Sciences Clinic of Dermatology, Polytechnic University of Marche, 60020 Ancona, Italy; (G.R.); (G.R.); (E.M.); (A.O.)
| | - Elisa Molinelli
- Department of Clinical and Molecular Sciences Clinic of Dermatology, Polytechnic University of Marche, 60020 Ancona, Italy; (G.R.); (G.R.); (E.M.); (A.O.)
| | - Oscar Cirioni
- Department of Biomedical Sciences and Public Health Clinic of Infectious Diseases, Polytechnic University of Marche, 60020 Ancona, Italy; (O.C.); (A.G.)
| | - Andrea Giacometti
- Department of Biomedical Sciences and Public Health Clinic of Infectious Diseases, Polytechnic University of Marche, 60020 Ancona, Italy; (O.C.); (A.G.)
| | - Annamaria Offidani
- Department of Clinical and Molecular Sciences Clinic of Dermatology, Polytechnic University of Marche, 60020 Ancona, Italy; (G.R.); (G.R.); (E.M.); (A.O.)
| |
Collapse
|