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Chen C, Chen L, Mao C, Jin L, Wu S, Zheng Y, Cui Z, Li Z, Zhang Y, Zhu S, Jiang H, Liu X. Natural Extracts for Antibacterial Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306553. [PMID: 37847896 DOI: 10.1002/smll.202306553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/23/2023] [Indexed: 10/19/2023]
Abstract
Bacteria-induced epidemics and infectious diseases are seriously threatening the health of people around the world. In addition, antibiotic therapy has been inducing increasingly more serious bacterial resistance, which makes it urgent to develop new treatment strategies to combat bacteria, including multidrug-resistant bacteria. Natural extracts displaying antibacterial activity and good biocompatibility have attracted much attention due to greater concerns about the safety of synthetic chemicals and emerging drug resistance. These antibacterial components can be isolated and utilized as antimicrobials, as well as transformed, combined, or wrapped with other substances by using modern assistive technologies to fight bacteria synergistically. This review summarizes recent advances in natural extracts from three kinds of sources-plants, animals, and microorganisms-for antibacterial applications. This work discusses the corresponding antibacterial mechanisms and the future development of natural extracts in antibacterial fields.
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Affiliation(s)
- Cuihong Chen
- Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, 430062, China
- School of Health Science & Biomedical Engineering, Hebei University of Technology, Xiping Avenue 5340#, Tianjin, 300401, China
- School of Materials Science & Engineering, Peking University, Yiheyuan Road 5#, Beijing, 100871, China
| | - Lin Chen
- Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, 430062, China
- School of Health Science & Biomedical Engineering, Hebei University of Technology, Xiping Avenue 5340#, Tianjin, 300401, China
- School of Materials Science & Engineering, Peking University, Yiheyuan Road 5#, Beijing, 100871, China
| | - Congyang Mao
- Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, 430062, China
| | - Liguo Jin
- Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, 430062, China
- School of Materials Science & Engineering, Peking University, Yiheyuan Road 5#, Beijing, 100871, China
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Yaguan Road 135#, Tianjin, 300072, China
| | - Shuilin Wu
- Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, 430062, China
- School of Materials Science & Engineering, Peking University, Yiheyuan Road 5#, Beijing, 100871, China
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Yaguan Road 135#, Tianjin, 300072, China
| | - Yufeng Zheng
- School of Materials Science & Engineering, Peking University, Yiheyuan Road 5#, Beijing, 100871, China
| | - Zhenduo Cui
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Yaguan Road 135#, Tianjin, 300072, China
| | - Zhaoyang Li
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Yaguan Road 135#, Tianjin, 300072, China
| | - Yu Zhang
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Shengli Zhu
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Yaguan Road 135#, Tianjin, 300072, China
| | - Hui Jiang
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Yaguan Road 135#, Tianjin, 300072, China
| | - Xiangmei Liu
- Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, 430062, China
- School of Health Science & Biomedical Engineering, Hebei University of Technology, Xiping Avenue 5340#, Tianjin, 300401, China
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Liu Q, Wang L, He D, Wu Y, Liu X, Yang Y, Chen Z, Dong Z, Luo Y, Song Y. Application Value of Antimicrobial Peptides in Gastrointestinal Tumors. Int J Mol Sci 2023; 24:16718. [PMID: 38069041 PMCID: PMC10706433 DOI: 10.3390/ijms242316718] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/17/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
Gastrointestinal cancer is a common clinical malignant tumor disease that seriously endangers human health and lacks effective treatment methods. As part of the innate immune defense of many organisms, antimicrobial peptides not only have broad-spectrum antibacterial activity but also can specifically kill tumor cells. The positive charge of antimicrobial peptides under neutral conditions determines their high selectivity to tumor cells. In addition, antimicrobial peptides also have unique anticancer mechanisms, such as inducing apoptosis, autophagy, cell cycle arrest, membrane destruction, and inhibition of metastasis, which highlights the low drug resistance and high specificity of antimicrobial peptides. In this review, we summarize the related studies on antimicrobial peptides in the treatment of digestive tract tumors, mainly oral cancer, esophageal cancer, gastric cancer, liver cancer, pancreatic cancer, and colorectal cancer. This paper describes the therapeutic advantages of antimicrobial peptides due to their unique anticancer mechanisms. The length, net charge, and secondary structure of antimicrobial peptides can be modified by design or modification to further enhance their anticancer effects. In summary, as an emerging cancer treatment drug, antimicrobial peptides need to be further studied to realize their application in gastrointestinal cancer diseases.
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Affiliation(s)
- Qi Liu
- College of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Lei Wang
- College of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Dongxia He
- College of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Yuewei Wu
- College of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Xian Liu
- College of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Yahan Yang
- College of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Zhizhi Chen
- College of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Zhan Dong
- College of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Ying Luo
- College of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Yuzhu Song
- College of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
- Medical College, Kunming University of Science and Technology, Kunming 650500, China
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Park SC, Lee JK, Kim YM, Lee JR. Effects of structural changes on antibacterial activity and cytotoxicity due to proline substitutions in chimeric peptide HnMc. Biochem Biophys Res Commun 2023; 679:139-144. [PMID: 37696067 DOI: 10.1016/j.bbrc.2023.09.013] [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: 08/10/2023] [Accepted: 09/06/2023] [Indexed: 09/13/2023]
Abstract
Owing to the rapidly increasing emergence of multidrug-resistant pathogens, antimicrobial peptides (AMPs) are being explored as next-generation antibiotics. However, AMPs present in nature are highly toxic and exhibit low antibacterial activity. Simple modifications, such as amino acid substitution, can enhance antimicrobial activity and cell selectivity. Herein, we show that HnMc-W, substituted by the Phe1Trp analog of HnMc, a chimeric peptide, resulted in membranolytic antibacterial action and enhanced salt tolerance, whereas HnMc-WP1 with one Ser9Pro substitution resulted in a proline-kink helical structure that increased salt-tolerant antibacterial effects and reduced cytotoxicity. In addition, the HnMc-WP2 peptide, designed with a PXXP motif, had a flexible central hinge in its α-helical structure due to the introduction of two Pro and two Gln (X positions, by deletion of two Gln at positions 16 and 17) residues instead of Ser at position. HnMc-WP2 exhibited excellent antibacterial effects without cytotoxicity in vitro. Moreover, its potent antibacterial activity was demonstrated in a drug-resistant Pseudomonas aeruginosa-infected mouse model in vivo. Our findings provide valuable information for the design of peptides with high antibacterial activity and cell selectivity.
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Affiliation(s)
- Seong-Cheol Park
- Department of Chemical Engineering, Sunchon National University, Suncheon, 57922, Republic of Korea
| | - Jong-Kook Lee
- Department of Chemical Engineering, Sunchon National University, Suncheon, 57922, Republic of Korea
| | - Young-Min Kim
- Department of Chemical Engineering, Sunchon National University, Suncheon, 57922, Republic of Korea
| | - Jung Ro Lee
- LMO Team, National Institute of Ecology (NIE), Seocheon, 33657, Republic of Korea; Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, 77843-2128, USA.
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Makwana P, Rahul K, Ito K, Subhadra B. Diversity of Antimicrobial Peptides in Silkworm. Life (Basel) 2023; 13:life13051161. [PMID: 37240807 DOI: 10.3390/life13051161] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 05/01/2023] [Accepted: 05/07/2023] [Indexed: 05/28/2023] Open
Abstract
Antimicrobial resistance is a phenomenon that the present-day world is witnessing that poses a serious threat to global health. The decline in the development of novel therapeutics over the last couple of decades has exacerbated the situation further. In this scenario, the pursuit of new alternative therapeutics to commonly used antibiotics has gained predominance amongst researchers across the world. Antimicrobial peptides (AMPs) from natural sources have drawn significant interest in the recent years as promising pharmacological substitutes over the conventional antibiotics. The most notable advantage of AMPs is that microorganisms cannot develop resistance to them. Insects represent one of the potential sources of AMPs, which are synthesized as part of an innate immune defence against invading pathogens. AMPs from different insects have been extensively studied, and silkworm is one of them. Diverse classes of AMPs (including attacins, cecropins, defensins, enbocins, gloverins, lebocins and moricins) were identified from silkworm that exhibit antimicrobial property against bacteria, fungi and viruses, indicating their potential therapeutic benefits. This review briefs about the immune responses of silkworm to invading pathogens, the isolation of AMPs from silkworms, AMPs reported in silkworms and their activity against various microorganisms.
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Affiliation(s)
- Pooja Makwana
- Central Sericultural Research & Training Institute, Central Silk Board, Ministry of Textiles, Government of India, Berhampore, Murshidabad 742101, West Bengal, India
| | - Kamidi Rahul
- Central Sericultural Research & Training Institute, Central Silk Board, Ministry of Textiles, Government of India, Berhampore, Murshidabad 742101, West Bengal, India
| | - Katsuhiko Ito
- Laboratory of Sericultural Science, Department of Science of Biological Production, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi 183-8509, Tokyo, Japan
| | - Bindu Subhadra
- Department of Veterinary Biomedical Sciences, College of Veterinary Medicine, Long Island University, Brookville, New York, NY 11548, USA
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Ali S, Faqir N, Naz F, Jan MI, Khan N, Alotaibi A, Ullah R. A Comprehensive Mechanistic Antibacterial and Antibiofilm Study of Potential Bioactive ((BpA) 2bp)Cu/Zn Complexes via Bactericidal Mechanisms against Escherichia coli. Molecules 2023; 28:molecules28052215. [PMID: 36903459 PMCID: PMC10005605 DOI: 10.3390/molecules28052215] [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: 02/07/2023] [Revised: 02/24/2023] [Accepted: 02/24/2023] [Indexed: 03/04/2023] Open
Abstract
Bacterial resistance to antibiotics and host defense systems is primarily due to bacterial biofilm formation in antibiotic therapy. In the present study, two complexes, bis (biphenyl acetate) bipyridine Cu (II) (1) and bis (biphenyl acetate) bipyridine Zn (II) (2), were tested for their ability to prevent biofilm formation. The minimum inhibitory concentration and minimum bactericidal concentration of complexes 1 and 2 were 46.87 ± 1.822 and 93.75 ± 1.345 and 47.87 ± 1.345 and 94.85 ± 1.466 μg/mL, respectively. The significant activity of both complexes was attributed to the damage caused at the membrane level and was confirmed using an imaging technique. The biofilm inhibitory potential levels of complexes 1 and 2 were 95% and 71%, respectively, while the biofilm eradication potential levels were 95% and 35%, respectively, for both complexes. Both the complexes showed good interactions with the E. coli DNA. Thus, complexes 1 and 2 are good antibiofilm agents that exert their bactericidal actions possibly by disrupting the bacterial membrane and interacting with the bacterial DNA, which can act as a powerful agent to restrain the development of bacterial biofilm on therapeutic implants.
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Affiliation(s)
- Sajid Ali
- Department of Chemistry, Bacha Khan University, Charsadda 24420, Khyber Pakhtunkhwa, Pakistan
- Correspondence: (S.A.); (R.U.)
| | - Nazma Faqir
- Department of Chemistry, Bacha Khan University, Charsadda 24420, Khyber Pakhtunkhwa, Pakistan
| | - Falak Naz
- Department of Chemistry, Bacha Khan University, Charsadda 24420, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Ishtiaq Jan
- Department of Chemistry, Kohat University of Science and Technology, Kohat 26000, Khyber Pakhtunkhwa, Pakistan
| | - Naeem Khan
- Department of Chemistry, Kohat University of Science and Technology, Kohat 26000, Khyber Pakhtunkhwa, Pakistan
| | - Amal Alotaibi
- Department of Basic Science, College of Medicine, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Riaz Ullah
- Medicinal Aromatic and Poisonous Plants Research Center, Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
- Correspondence: (S.A.); (R.U.)
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6
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Liu Y, Zhang X, Meng C, Ji S, Guo K. Antimicrobial activity of the recombinant peptide Melittin-Thanatin with three glycine to tryptophan mutations. Prep Biochem Biotechnol 2022:1-11. [PMID: 36508334 DOI: 10.1080/10826068.2022.2151016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The antimicrobial peptide was considered an important target for developing novel antibacterial drugs. However, the unstable biological activity and the low antibacterial activity are challenges for the application of recombinant proteins. In this study, the fusion peptide of Melittin-Thanatin (MT) was designed and produced, and its derivative sequence (MT-W) was obtained by replacing three glycines (Gly, G) with tryptophan (Trp, W). The MT-W peptide were synthesized in Bacillus subtilis WB700 by EDDIE self-cleavage protein fusion. Compared with MT, MT-W exhibited 2-4 times higher antibacterial rate against Escherichia coli K88. In addition, MT-W showed lower cytotoxicity (IC50 > 300 mg·L-1) to the red blood cell, and more stable biological activities under the conditions of different temperatures (20, 30, 40, 50, 60, 70, 80, and 90 °C), pH values (2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, and 9.0) and different proteases. Especially, MT-W showed a broader antibacterial effect on three drug-resistant strains than florfenicol and oxytetracycline calcium. In conclusion, compared with MT, the MT-W showed increased antibacterial activity, stability, lower cytotoxicity, and broader antimicrobial effect. Therefore, it would become a promising alternative to conventional antibiotics.
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Affiliation(s)
- Yong Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Xiuping Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
- College of Animal Science and Technology, Tarim University, Alar, China
| | - Chunyan Meng
- Beijing Sinogene High-Tech Biotechnology Co., Ltd, Beijing, China
| | - Shengyue Ji
- Beijing Sinogene High-Tech Biotechnology Co., Ltd, Beijing, China
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Kangkang Guo
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
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Park SC, Son H, Kim YM, Lee JK, Park S, Lim HS, Lee JR, Jang MK. Design of Antimicrobial Peptides with Cell-Selective Activity and Membrane-Acting Mechanism against Drug-Resistant Bacteria. Antibiotics (Basel) 2022; 11:1619. [PMID: 36421263 PMCID: PMC9686514 DOI: 10.3390/antibiotics11111619] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/08/2022] [Accepted: 11/11/2022] [Indexed: 09/13/2023] Open
Abstract
Antimicrobial peptides (AMPs) can combat drug-resistant bacteria with their unique membrane-disruptive mechanisms. This study aimed to investigate the antibacterial effects of several membrane-acting peptides with amphipathic structures and positional alterations of two tryptophan residues. The synthetic peptides exhibited potent antibacterial activities in a length-dependent manner against various pathogenic drug-resistant and susceptible bacteria. In particular, the location of tryptophan near the N-terminus of AMPs simultaneously increases their antibacterial activity and toxicity. Furthermore, the growth inhibition mechanisms of these newly designed peptides involve cell penetration and destabilization of the cell membrane. These findings provide new insights into the design of peptides as antimicrobial agents and suggest that these peptides can be used as substitutes for conventional antibiotics.
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Affiliation(s)
- Seong-Cheol Park
- Department of Chemical Engineering, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Hyosuk Son
- Department of Chemical Engineering, Sunchon National University, Suncheon 57922, Republic of Korea
- Department of Exhibition and Education, National Marine Biodiversity Institute of Korea, Seocheon 33662, Republic of Korea
| | - Young-Min Kim
- Department of Chemical Engineering, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Jong-Kook Lee
- Department of Chemical Engineering, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Soyoung Park
- Department of Chemical Engineering, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Hye Song Lim
- LMO Team, National Institute of Ecology (NIE), Seocheon 33657, Republic of Korea
| | - Jung Ro Lee
- LMO Team, National Institute of Ecology (NIE), Seocheon 33657, Republic of Korea
| | - Mi-Kyeong Jang
- Department of Chemical Engineering, Sunchon National University, Suncheon 57922, Republic of Korea
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Kang DD, Park J, Park Y. Therapeutic Potential of Antimicrobial Peptide PN5 against Multidrug-Resistant E. coli and Anti-Inflammatory Activity in a Septic Mouse Model. Microbiol Spectr 2022; 10:e0149422. [PMID: 36129300 PMCID: PMC9603901 DOI: 10.1128/spectrum.01494-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 09/01/2022] [Indexed: 12/31/2022] Open
Abstract
Antibiotic-resistant bacteria have become a public health problem. Thus, antimicrobial peptides (AMPs) have been evaluated as substitutes for antibiotics. Herein, we investigated PN5 derived from Pinus densiflora (pine needle). PN5 exhibited antimicrobial activity without causing cytotoxic effects. Based on these results, we examined the mode of action of PN5 against Gram-negative and -positive bacteria. PN5 exhibited membrane permeabilization ability, had antimicrobial stability in the presence of elastase, a proteolytic enzyme, and did not induce resistance in bacteria. Bacterial lipopolysaccharide (LPS) induces an inflammatory response in RAW 264.7 macrophages. PN5 suppressed proinflammatory cytokines mediated by NF-κB and mitogen-activated protein kinase signaling. In C57BL/6J mice treated with LPS and d-galactosamine, PN5 exhibited anti-inflammatory activity in inflamed mouse livers. Our results indicate that PN5 has antimicrobial and anti-inflammatory activities and thus may be useful as an antimicrobial agent to treat septic shock caused by multidrug-resistant (MDR) Escherichia coli without causing further resistance. IMPORTANCE Antibiotic-resistant bacteria are a global health concern. There is no effective treatment for antibiotic-resistant bacteria, and new alternatives are being suggested. The present study found antibacterial and anti-inflammatory activities of PN5 derived from Pinus densiflora (pine needle), and further investigated the therapeutic effect in a mouse septic model. As a mechanism of antibacterial activity, PN5 exhibited the membrane permeabilization ability of the toroidal model, and treated strains did not develop drug resistance during serial passages. PN5 showed immunomodulatory properties of neutralizing LPS in a mouse septic model. These results indicate that PN5 could be a new and promising therapeutic agent for bacterial infectious disease caused by antibiotic-resistant strains.
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Affiliation(s)
- Da Dam Kang
- Department of Biomedical Science, Chosun University, Gwangju, South Korea
| | - Jonggwan Park
- Department of Bioinformatics, Kongju National University, Kongju, South Korea
| | - Yoonkyung Park
- Department of Biomedical Science, Chosun University, Gwangju, South Korea
- Research Center for Proteinaceous Materials (RCPM), Chosun University, Gwangju, South Korea
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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.
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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.
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Antony A, Olakkaran S, Purayil AK, Shekh S, Gowd KH, Gurushankara HP. Antitumor activity of Tigerinin-1: Necroptosis mediates toxicity in A549 cells. Biochim Biophys Acta Gen Subj 2022; 1866:130182. [DOI: 10.1016/j.bbagen.2022.130182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/20/2022] [Accepted: 05/24/2022] [Indexed: 10/18/2022]
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Pratap Verma D, Ansari MM, Verma NK, Saroj J, Akhtar S, Pant G, Mitra K, Singh BN, Ghosh JK. Tandem Repeat of a Short Human Chemerin-Derived Peptide and Its Nontoxic d-Lysine-Containing Enantiomer Display Broad-Spectrum Antimicrobial and Antitubercular Activities. J Med Chem 2021; 64:15349-15366. [PMID: 34662112 DOI: 10.1021/acs.jmedchem.1c01352] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
To design novel antimicrobial peptides by utilizing the sequence of the human host defense protein, chemerin, a seven-residue amphipathic stretch located in the amino acid region, 109-115, was identified, which possesses the highest density of hydrophobic and positively charged residues. Although this 7-mer peptide was inactive toward microorganisms, its 14-mer tandem repeat (Chem-KVL) was highly active against different bacteria including methicillin-resistant Staphylococcus aureus, a multidrug-resistant Staphylococcus aureus strain, and slow- and fast-growing mycobacterial species. The selective enantiomeric substitutions of its two l-lysine residues were attempted to confer cell selectivity and proteolytic stability to Chem-KVL. Chem-8dK with a d-lysine replacement in its middle (eighth position) showed the lowest hemolytic activity against human red blood cells among Chem-KVL analogues and maintained high antimicrobial properties. Chem-8dK showed in vivo efficacy against Pseudomonas aeruginosa infection in BALB/c mice and inhibited the development of resistance in this microorganism up to 30 serial passages and growth of intracellular mycobacteria in THP-1 cells.
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Affiliation(s)
- Devesh Pratap Verma
- Biochemistry and Structural Biology Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India
| | - Mohd Mustkim Ansari
- Division of Molecular Microbiology and Immunology, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India
| | - Neeraj Kumar Verma
- Biochemistry and Structural Biology Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India
| | - Jyotshana Saroj
- Biochemistry and Structural Biology Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India
| | - Sariyah Akhtar
- Biochemistry and Structural Biology Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India
| | - Garima Pant
- Electron Microscopy Unit, SAIF &R Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India
| | - Kalyan Mitra
- Electron Microscopy Unit, SAIF &R Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi 110001, India
| | - Bhupendra Narain Singh
- Division of Molecular Microbiology and Immunology, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi 110001, India
| | - Jimut Kanti Ghosh
- Biochemistry and Structural Biology Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi 110001, India
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Guo J, Cao G, Wang X, Tang W, Diwu W, Yan M, Yang M, Bi L, Han Y. Coating CoCrMo Alloy with Graphene Oxide and ε-Poly-L-Lysine Enhances Its Antibacterial and Antibiofilm Properties. Int J Nanomedicine 2021; 16:7249-7268. [PMID: 34737563 PMCID: PMC8560011 DOI: 10.2147/ijn.s321800] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 10/04/2021] [Indexed: 01/02/2023] Open
Abstract
INTRODUCTION With increases in implant infections, the search for antibacterial and biofilm coatings has become a new interest for orthopaedists and dentists. In recent years, graphene oxide (GO) has been extensively studied for its superior antibacterial properties. However, most of these studies have focused on solutions and there are few antibacterial studies on metal surfaces, especially the surfaces of cobalt-chromium-molybdenum (CoCrMo) alloys. ε-Poly-L-lysine (ε-PLL), as a novel food preservative, has a spectrum of antimicrobial activity; however, its antimicrobial activity after coating an implant surface is not clear. METHODS In this study, for the first time, a two-step electrodeposition method was used to coat GO and ε-PLL on the surface of a CoCrMo alloy. Its antibacterial and antibiofilm properties against S. aureus and E. coli were then studied. RESULTS The results show that the formation of bacteria and biofilms on the coating surface was significantly inhibited, GO and ε-PLL composite coatings had the best antibacterial and antibiofilm effects, followed by ε-PLL and GO coatings. In terms of classification, the coatings are anti-adhesive and contact-killing/inhibitory surfaces. In addition to oxidative stress, physical damage to GO and electrostatic osmosis of ε-PLL are the main antibacterial and antibiofilm mechanisms. DISCUSSION This is the first study that GO and ε-PLL coatings were successfully prepared on the surface of CoCrMo alloy by electrodeposition. It provides a promising new approach to the problem of implant infection in orthopedics and stomatology.
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Affiliation(s)
- Jianbin Guo
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, Xi’an, People’s Republic of China
- Department of Joint Surgery, Hong-Hui Hospital, Xi’an Jiaotong University College of Medicine, Xi’an, People’s Republic of China
| | - Guihua Cao
- Department of Geriatrics, The First Affiliated Hospital of Air Force Military Medical University, Xi’an, People’s Republic of China
| | - Xing Wang
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, Xi’an, People’s Republic of China
| | - Wenhao Tang
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, Xi’an, People’s Republic of China
| | - Weilong Diwu
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, Xi’an, People’s Republic of China
| | - Ming Yan
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, Xi’an, People’s Republic of China
| | - Min Yang
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, Xi’an, People’s Republic of China
| | - Long Bi
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, Xi’an, People’s Republic of China
| | - Yisheng Han
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, Xi’an, People’s Republic of China
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Wu J, Zhang H, Chen X, Chai J, Hu Y, Xiong W, Lu W, Tian M, Chen X, Xu X. FM-CATH, A Novel Cathelicidin From Fejervarya Multistriata, Shows Therapeutic Potential for Treatment of CLP-Induced Sepsis. Front Pharmacol 2021; 12:731056. [PMID: 34483941 PMCID: PMC8415707 DOI: 10.3389/fphar.2021.731056] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 08/04/2021] [Indexed: 12/15/2022] Open
Abstract
Sepsis is an exacerbated inflammatory reaction induced by severe infection. As important defensive molecules in innate immunity, several AMPs are reported to prevent septic shock. In this study, we characterized a novel cathelicidin, FM-CATH, from the frog skin of F. multistriata. FM-CATH was found to adopt an amphipathic α-helix structural in membrane-mimetic environments and possess favorable antimicrobial effects against bacteria and fungus. In addition, it triggered the agglutination of bacteria. It could also strongly bind to LPS and LTA. Additionally, FM-CATH affected the enzymatic activities of thrombin, plasmin, β-tryptase, and tPA, leading to coagulation inhibition in vitro and in vivo. Finally, we observed that FM-CATH improved survival rate and inhibited pathological alteration, bacterial count, serum biochemistry, and pro-inflammatory cytokine expression in the cecal ligation and puncture-induced sepsis mice. Taken together, these findings suggest that FM-CATH might be served as a promising agent for the treatment of sepsis.
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Affiliation(s)
- Jiena Wu
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Haiyun Zhang
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaoxin Chen
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Jinwei Chai
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Yunrui Hu
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Weichen Xiong
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Wancheng Lu
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Maolin Tian
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Xin Chen
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xueqing Xu
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
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Moghadam MT, Chegini Z, Norouzi A, Dousari AS, Shariati A. Three-Decade Failure to the Eradication of Refractory Helicobacter pylori Infection and Recent Efforts to Eradicate the Infection. Curr Pharm Biotechnol 2021; 22:945-959. [PMID: 32767919 DOI: 10.2174/1389201021666200807110849] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/30/2020] [Accepted: 07/04/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Helicobacter pylori causes dangerous and deadly diseases such as gastric cancer and duodenal ulcers. Eradication and treatment of this bacterium are very important due to the deadly diseases caused by H. pylori and the high cost of treatment for countries. METHODS Thus, we present a complete list of the most important causes of failure in the treatment and eradication of H. pylori, and address new therapeutic methods that may be effective in controlling this bacterium in the future. RESULTS Many efforts have been made to control and eradicate this bacterium over the years, but no success has been achieved since its eradication is a complex process affected by the bacterial properties and host factors. Previous studies have shown that various factors are involved in the failure to eradicate H. pylori, such as new genotypes of the bacterium with higher pathogenicity, inappropriate patient cooperation, mutations, biofilm formation and dormant forms that cause antibiotic resistance, acidic stomach pH, high bacterial load, smoking, immunosuppressive features and intracellular occurrence of H. pylori. On the other hand, recent studies reported that the use of probiotics, nanoparticles, antimicrobial peptides, natural product and vaccines can be helpful in the treatment and eradication of H. pylori infections. CONCLUSION Eradication of H. pylori is crucial for the treatment of important diseases such as gastric cancer. Therefore, it seems that identifying the failure causes of treating this bacterium can be helpful in controlling the infections. Besides, further studies on new therapeutic strategies may help eradicate H. pylori in the future.
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Affiliation(s)
- Majid T Moghadam
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Chegini
- Student Research Committee, Iran University of Medical Sciences, Tehran, Iran
| | - Amin Norouzi
- Department of Microbiology and Virology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Aref Shariati
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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15
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van Eijk M, van Dijk A, van der Ent CK, Arets HGM, Breukink E, van Os N, Adrichem R, van der Water S, Lino Gómez R, Kristensen M, Hessing M, Jekhmane S, Weingarth M, Veldhuizen RAW, Veldhuizen EJA, Haagsman HP. PepBiotics, novel cathelicidin-inspired antimicrobials to fight pulmonary bacterial infections. Biochim Biophys Acta Gen Subj 2021; 1865:129951. [PMID: 34147544 DOI: 10.1016/j.bbagen.2021.129951] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 05/28/2021] [Accepted: 06/15/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Antimicrobial peptides are considered potential alternatives to antibiotics. Here we describe the antibacterial properties of a family of novel cathelicidin-related (CR-) peptides, which we named PepBiotics, against bacteria typically present in cystic fibrosis (CF) patients. METHODS Broth dilution assays were used to determine antibacterial activity of PepBiotics under physiological conditions, as well as development of bacterial resistance against these peptides. Toxicity was tested in mice and cell cultures while molecular interactions of PepBiotics with bacterial membrane components was determined using CD, ITC and LPS/LTA induced macrophage studies. RESULTS A relatively small number of PepBiotics remained highly antibacterial against CF-related respiratory pathogens Pseudomonas aeruginosa and Staphylococcus aureus, at high ionic strength and low pH. Interestingly, these PepBiotics also prevented LPS/LTA induced activation of macrophages and was shown to be non-toxic to primary human nasal epithelial cells. Furthermore, both P. aeruginosa and S. aureus were unable to induce resistance against CR-163 and CR-172, two PepBiotics selected for their excellent antimicrobial and immunomodulatory properties. Toxicity studies in mice indicated that intratracheal administration of CR-163 was well tolerated in vivo. Finally, interaction of CR-163 with bacterial-type anionic membranes but not with mammalian-type (zwitterionic lipid) membranes was confirmed using ITC and 31P solid state NMR. CONCLUSIONS PepBiotics are a promising novel class of highly active antimicrobial peptides, of which CR-163 showed the most potential for treatment of clinically relevant (CF-) pathogens in physiological conditions. GENERAL SIGNIFICANCE These observations emphasize the therapeutic potential of PepBiotics against CF-related bacterial respiratory infections.
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Affiliation(s)
- Martin van Eijk
- Faculty of Veterinary Medicine, Department of Biomolecular Health Sciences, Division Infectious Diseases & Immunology, Section Molecular Host Defence, Utrecht University, the Netherlands
| | - Albert van Dijk
- Faculty of Veterinary Medicine, Department of Biomolecular Health Sciences, Division Infectious Diseases & Immunology, Section Molecular Host Defence, Utrecht University, the Netherlands
| | - Cornelis K van der Ent
- Department of Paediatric Pulmonology, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Hubertus G M Arets
- Department of Paediatric Pulmonology, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Eefjan Breukink
- Membrane Biochemistry and Biophysics, Department of Chemistry, Faculty of Science, Utrecht University, Utrecht, the Netherlands
| | - Nico van Os
- Faculty of Veterinary Medicine, Department of Biomolecular Health Sciences, Division Infectious Diseases & Immunology, Section Molecular Host Defence, Utrecht University, the Netherlands
| | - Roy Adrichem
- Faculty of Veterinary Medicine, Department of Biomolecular Health Sciences, Division Infectious Diseases & Immunology, Section Molecular Host Defence, Utrecht University, the Netherlands
| | - Sven van der Water
- Faculty of Veterinary Medicine, Department of Biomolecular Health Sciences, Division Infectious Diseases & Immunology, Section Molecular Host Defence, Utrecht University, the Netherlands
| | - Rita Lino Gómez
- Faculty of Veterinary Medicine, Department of Biomolecular Health Sciences, Division Infectious Diseases & Immunology, Section Molecular Host Defence, Utrecht University, the Netherlands
| | - Maartje Kristensen
- Department of Paediatric Pulmonology, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Martin Hessing
- U-Protein Express B.V., Life Science Incubator, Utrecht Science Park, Yalelaan 62, 3584CM Utrecht, the Netherlands
| | - Shehrazade Jekhmane
- Bijvoet Center for Biomolecular Research, Department of Chemistry, Utrecht University, Utrecht, the Netherlands
| | - Markus Weingarth
- Bijvoet Center for Biomolecular Research, Department of Chemistry, Utrecht University, Utrecht, the Netherlands
| | - Ruud A W Veldhuizen
- Department of Physiology and Pharmacology, Western University, London, Ontario, Canada
| | - Edwin J A Veldhuizen
- Faculty of Veterinary Medicine, Department of Biomolecular Health Sciences, Division Infectious Diseases & Immunology, Section Molecular Host Defence, Utrecht University, the Netherlands; Faculty of Veterinary Medicine, Department of Biomolecular Health Sciences, Division Infectious Diseases & Immunology, Section Immunology, Utrecht University, the Netherlands.
| | - Henk P Haagsman
- Faculty of Veterinary Medicine, Department of Biomolecular Health Sciences, Division Infectious Diseases & Immunology, Section Molecular Host Defence, Utrecht University, the Netherlands
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16
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Hong MJ, Kim MK, Park Y. Comparative Antimicrobial Activity of Hp404 Peptide and Its Analogs against Acinetobacter baumannii. Int J Mol Sci 2021; 22:ijms22115540. [PMID: 34073939 PMCID: PMC8197367 DOI: 10.3390/ijms22115540] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/07/2021] [Accepted: 05/19/2021] [Indexed: 12/24/2022] Open
Abstract
An amphipathic α-helical peptide, Hp1404, was isolated from the venomous gland of the scorpion Heterometrus petersii. Hp1404 exhibits antimicrobial activity against methicillin-resistant Staphylococcus aureus but is cytotoxic. In this study, we designed antimicrobial peptides by substituting amino acids at the 14 C-terminal residues of Hp1404 to reduce toxicity and improve antibacterial activity. The analog peptides, which had an amphipathic α-helical structure, were active against gram-positive and gram-negative bacteria, particularly multidrug-resistant Acinetobacter baumannii, and showed lower cytotoxicity than Hp1404. N-phenyl-1-naphthylamine uptake and DisC3-5 assays demonstrated that the peptides kill bacteria by effectively permeating the outer and cytoplasmic membranes. Additionally, the analog peptides inhibited biofilm formation largely than Hp1404 at low concentrations. These results suggest that the analog peptides of Hp1404 can be used as therapeutic agents against A. baumannii infection.
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Affiliation(s)
- Min Ji Hong
- Department of Biomedical Sciences, Chosun University, Gwangju 61452, Korea; (M.J.H.); (M.K.K.)
| | - Min Kyung Kim
- Department of Biomedical Sciences, Chosun University, Gwangju 61452, Korea; (M.J.H.); (M.K.K.)
| | - Yoonkyung Park
- Department of Biomedical Sciences, Chosun University, Gwangju 61452, Korea; (M.J.H.); (M.K.K.)
- Research Center for Proteineous Materials, Chosun University, Gwangju 61452, Korea
- Correspondence: ; Tel.: +82-62-230-6854; Fax: +82-62-225-6758
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17
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Yaghoubi A, Khazaei M, Ghazvini K, Movaqar A, Avan A, Hasanian SM, Soleimanpour S. Peptides with Dual Antimicrobial-Anticancer Activity Derived from the N-terminal Region of H. pylori Ribosomal Protein L1 (RpL1). Int J Pept Res Ther 2021. [DOI: 10.1007/s10989-020-10150-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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18
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Antibacterial and antibiofilm properties of graphene and its derivatives. Colloids Surf B Biointerfaces 2021; 200:111588. [PMID: 33529928 DOI: 10.1016/j.colsurfb.2021.111588] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 01/17/2021] [Accepted: 01/20/2021] [Indexed: 12/22/2022]
Abstract
Infections resulting from bacteria and biofilms have become a huge problem threatening human health. In recent years, the antibacterial and antibiofilm effects of graphene and its derivatives have been extensively studied. However, there continues to be some controversy over whether graphene and its derivatives can resist infection and biofilms. Moreover, the antibacterial mechanism and cytotoxicity of graphene and its derivatives are unclear. In the present review, antibacterial and antibiofilm abilities of graphene and its derivatives in solution, on the surface are reviewed, and their toxicity and possible mechanisms are also reviewed. Furthermore, we propose possible future development directions for graphene and its derivatives in antibacterial and antibiofilm applications.
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19
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Park SC, Kim H, Kim JY, Kim H, Cheong GW, Lee JR, Jang MK. Improved Cell Selectivity of Pseudin-2 via Substitution in the Leucine-Zipper Motif: In Vitro and In Vivo Antifungal Activity. Antibiotics (Basel) 2020; 9:antibiotics9120921. [PMID: 33352972 PMCID: PMC7766124 DOI: 10.3390/antibiotics9120921] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/09/2020] [Accepted: 12/15/2020] [Indexed: 12/28/2022] Open
Abstract
Several antimicrobial peptides (AMPs) have been discovered, developed, and purified from natural sources and peptide engineering; however, the clinical applications of these AMPs are limited owing to their lack of abundance and side effects related to cytotoxicity, immunogenicity, and hemolytic activity. Accordingly, to improve cell selectivity for pseudin-2, an AMP from Pseudis paradoxa skin, in mammalian cells and pathogenic fungi, the sequence of pseudin-2 was modified by alanine or lysine at each position of two amino acids within the leucine-zipper motif. Alanine-substituted variants were highly selective toward fungi over HaCaT and erythrocytes and maintained their antifungal activities and mode of action (membranolysis). However, the antifungal activities of lysine-substituted peptides were reduced, and the compound could penetrate into fungal cells, followed by induction of mitochondrial reactive oxygen species and cell death. In vivo antifungal assays of analogous peptide showed excellent antifungal efficiency in a Candida tropicalis skin infection mouse model. Our results demonstrated the usefulness of selective amino acid substitution in the repeated sequence of the leucine-zipper motif for the design of AMPs with potent antimicrobial activities and low toxicity.
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Affiliation(s)
- Seong-Cheol Park
- Department of Polymer Science and Engineering, Sunchon National University, Suncheon 57922, Korea; (S.-C.P.); (H.K.); (J.-Y.K.); (H.K.)
| | - Heabin Kim
- Department of Polymer Science and Engineering, Sunchon National University, Suncheon 57922, Korea; (S.-C.P.); (H.K.); (J.-Y.K.); (H.K.)
| | - Jin-Young Kim
- Department of Polymer Science and Engineering, Sunchon National University, Suncheon 57922, Korea; (S.-C.P.); (H.K.); (J.-Y.K.); (H.K.)
| | - Hyeonseok Kim
- Department of Polymer Science and Engineering, Sunchon National University, Suncheon 57922, Korea; (S.-C.P.); (H.K.); (J.-Y.K.); (H.K.)
| | - Gang-Won Cheong
- Division of Applied Life Sciences and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea;
| | - Jung Ro Lee
- National Institute of Ecology, 1210 Geumgang-ro, Maseo-myeon, Seocheon-gun 33657, Korea
- Correspondence: (J.R.L.); (M.-K.J.)
| | - Mi-Kyeong Jang
- Department of Polymer Science and Engineering, Sunchon National University, Suncheon 57922, Korea; (S.-C.P.); (H.K.); (J.-Y.K.); (H.K.)
- Correspondence: (J.R.L.); (M.-K.J.)
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20
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Park SC, Ko C, Hyeon H, Jang MK, Lee D. Imaging and Targeted Antibacterial Therapy Using Chimeric Antimicrobial Peptide Micelles. ACS APPLIED MATERIALS & INTERFACES 2020; 12:54306-54315. [PMID: 33236874 DOI: 10.1021/acsami.0c13083] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Infectious diseases induced by multidrug-resistant bacteria are a challenging problem in medicine because of global rise in the drug resistance to pathogenic bacteria. Despite great efforts on the development of antibiotics and antimicrobial agents, there is still a great need to develop a strategy to early detect bacterial infections and eradicate bacteria effectively and simultaneously. The innate immune systems of various organisms produce antimicrobial peptides, which kill a broad range of bacteria with minimal cytotoxicity to mammalian cells. Therefore, antimicrobial peptides have recently attracted increasing attention as an alternative to conventional antibiotics in antibacterial medications. Here, we report a new family of antibacterial agents, which is formulated from self-assembly of a chimeric antimicrobial lipopeptide (DSPE-HnMc) and amphiphilic biodegradable polymers. HnMc micelles could effectively bind the bacterial membrane to kill a wide spectrum of bacteria and bacterial biofilms. In the studies of mouse models of drug-resistant bacterial infections, HnMc micelles could target bacterial infections with high specificity and also kill drug-resistant bacteria effectively, demonstrating the great potential of HnMc micelles as imaging and targeted antibacterial agents. These findings also provide new insight into the design of antimicrobial peptide-based nanomedicine for detection and treatment of bacterial infections.
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Affiliation(s)
- Seong-Cheol Park
- Department of Polymer Science and Engineering, Sunchon National University, 255 Jungang-ro, Suncheon, Jeollanam-do 57922, Republic of Korea
| | | | | | - Mi-Kyeong Jang
- Department of Polymer Science and Engineering, Sunchon National University, 255 Jungang-ro, Suncheon, Jeollanam-do 57922, Republic of Korea
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Seifi T, Kamali AR. Anti-pathogenic activity of graphene nanomaterials: A review. Colloids Surf B Biointerfaces 2020; 199:111509. [PMID: 33340933 DOI: 10.1016/j.colsurfb.2020.111509] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/26/2020] [Accepted: 11/29/2020] [Indexed: 12/12/2022]
Abstract
Graphene and its derivatives are promising candidates for a variety of biological applications, among which, their anti-pathogenic properties are highly attractive due to the outstanding physicochemical characteristics of these novel nanomaterials. The antibacterial, antiviral and antifungal performances of graphene are increasingly becoming more important due to the pathogen's resistance to existing drugs. Despite this, the factors influencing the antibacterial activity of graphene nanomaterials, and consequently, the mechanisms involved are still controversial. This review aims to systematically summarize the literature, discussing various factors that affect the antibacterial performance of graphene materials, including the shape, size, functional group and the electrical conductivity of graphene flakes, as well as the concentration, contact time and the pH value of the graphene suspensions used in related microbial tests. We discuss the possible surface and edge interactions between bacterial cells and graphene nanomaterials, which cause antibacterial effects such as membrane/oxidative/photothermal stresses, charge transfer, entrapment and self-killing phenomena. This article reviews the anti-pathogenic activity of graphene nanomaterials, comprising their antibacterial, antiviral, antifungal and biofilm-forming performance, with an emphasis on the antibacterial mechanisms involved.
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Affiliation(s)
- Tahereh Seifi
- Energy and Environmental Materials Research Centre (E(2)MC), School of Metallurgy, Northeastern University, Shenyang, 110819, China
| | - Ali Reza Kamali
- Energy and Environmental Materials Research Centre (E(2)MC), School of Metallurgy, Northeastern University, Shenyang, 110819, China.
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Bee venom-derived antimicrobial peptide melectin has broad-spectrum potency, cell selectivity, and salt-resistant properties. Sci Rep 2020; 10:10145. [PMID: 32576874 PMCID: PMC7311438 DOI: 10.1038/s41598-020-66995-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 05/22/2020] [Indexed: 02/06/2023] Open
Abstract
Antimicrobial peptides have attracted attention as alternatives to conventional antibiotics. Previously, a novel antimicrobial peptide, melectin, consisting of 18 amino acids was isolated from the venom of a bee, Melecta albifrons. Here, we investigated the antibacterial activity of melectin against drug-resistant bacteria. Melectin showed broad-spectrum antimicrobial activity but low cytotoxicity and no hemolytic activity. Melectin maintained its antimicrobial activity at physiological salt concentrations. Melectin is an α-helical structure that binds to the bacterial membrane via electrostatic interactions and kills bacteria in a short time by bacterial membrane targeting. Collectively, our results suggest that melectin has antibacterial activity and anti-inflammatory activity.
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Antimicrobial and antibiofilm activity of the EeCentrocin 1 derived peptide EC1-17KV via membrane disruption. EBioMedicine 2020; 55:102775. [PMID: 32403086 PMCID: PMC7218270 DOI: 10.1016/j.ebiom.2020.102775] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/01/2020] [Accepted: 04/15/2020] [Indexed: 12/14/2022] Open
Abstract
Background The antibiotic resistance and biofilm formation of pathogenic microbes exacerbate the difficulties of anti-infection therapy in the clinic. The structural modification of antimicrobial peptides (AMP) is an effective strategy to develop novel anti-infective agents. Method Seventeen amino acids (AA) in the longer chain of EeCentrocin 1 (from the edible sea-urchin Echinus esculentus) were truncated and underwent further modification. To produce lead peptides with low toxicity and high efficacy, the antimicrobial activity or cytotoxicity of peptides was evaluated against various multidrug-resistant bacteria/fungi or mammalian cells in vivo/ in vitro. In addition, the stability and modes of action of the lead peptide were investigated. Findings EC1-17KV displayed potent activity and an expanded antimicrobial spectrum, especially against drug-resistant gram-negative bacteria and fungi, attributable to its enhanced amphiphilicity and net charge. In addition, it exhibits bactericidal/fungicidal activity and effectively increased the animal survival rate and mitigated the histopathological damage induced by multidrug-resistant P. aeruginosa or C. albicans in infected mice or G. mellonella. Moreover, EC1-17KV had a poor ability to induce resistance in bacteria and fungi and exhibited desirable high-salt/high-temperature tolerance properties. In bacteria, EC1-17KV promoted divalent cation release to damage bacterial membrane integrity. In fungi, it changed C. albicans membrane fluidity to increase membrane permeabilization or reduced hyphal formation to suppress biofilm formation. Interpretation EC1-17KV is a promising lead peptide for the development of antimicrobial agents against antibiotic resistant bacteria and fungi. Funding This work was funded by the National Natural Science Foundation of China (No. 81673483, 81803591); National Science and Technology Major Project Foundation of China (2019ZX09721001-004-005); National Key Research and Development Program of China (2018YFA0902000); "Double First-Class" University project (CPU2018GF/GY16); Natural Science Foundation of Jiangsu Province of China (No. BK20180563); and A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.
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High Cell Selectivity and Bactericidal Mechanism of Symmetric Peptides Centered on d-Pro-Gly Pairs. Int J Mol Sci 2020; 21:ijms21031140. [PMID: 32046328 PMCID: PMC7037546 DOI: 10.3390/ijms21031140] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 02/02/2020] [Accepted: 02/04/2020] [Indexed: 12/17/2022] Open
Abstract
Antimicrobial peptides (AMPs) have a unique action mechanism that can help to solve global problems in antibiotic resistance. However, their low therapeutic index and poor stability seriously hamper their development as therapeutic agents. In order to overcome these problems, we designed peptides based on the sequence template XXRXXRRzzRRXXRXX-NH2, where X represents a hydrophobic amino acid like Phe (F), Ile (I), and Leu (L), while zz represents Gly-Gly (GG) or d-Pro-Gly (pG). Showing effective antimicrobial activity against Gram-negative bacteria and low toxicity, designed peptides had a tendency to form an α-helical structure in membrane-mimetic environments. Among them, peptide LRpG (X: L, zz: pG) showed the highest geometric mean average treatment index (GMTI = 73.1), better salt, temperature and pH stability, and an additive effect with conventional antibiotics. Peptide LRpG played the role of anti-Gram-negative bacteria through destroying the cell membrane. In addition, peptide LRpG also exhibited an anti-inflammatory activity by effectively neutralizing endotoxin. Briefly, peptide LRpG has the potential to serve as a therapeutic agent to reduce antibiotic resistance owing to its high therapeutic index and great stability.
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Miao X, Zhou T, Zhang J, Xu J, Guo X, Hu H, Zhang X, Hu M, Li J, Yang W, Xie J, Xu Z, Mou L. Enhanced cell selectivity of hybrid peptides with potential antimicrobial activity and immunomodulatory effect. Biochim Biophys Acta Gen Subj 2020; 1864:129532. [PMID: 31953126 DOI: 10.1016/j.bbagen.2020.129532] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 12/20/2019] [Accepted: 01/13/2020] [Indexed: 12/31/2022]
Abstract
BACKGROUND Hybridization is a useful strategy to bond the advantages of different peptides into novel constructions. We designed a series of AMPs based on the structures of a synthetic AMP KFA3 and a naturally-occurred host defense peptide substance P (SP) to obtain peptides retaining the high antibacterial activity of KFA3 and the immunomodulatory activity and low cytotoxicity of SP. METHODS Two repeats of KFA and different C terminal fragments of SP were hybridized, generating a series of novel AMPs (KFSP1-8). The antibacterial activities, host cell toxicity and immunomodulation were measured. The antibacterial mechanisms were investigated. RESULTS Hybrid peptides KFSP1-4 exerted substantial antibacterial activities against Gram-negative bacteria of standard strains and clinical drug-resistant isolates including E.coli, A.baumannii and P.aeruginosa, while showing little toxicity towards host cells. Compared with KFA3, moderate reduction in α-helix content and the interruption in α-helix continuality were indicated in CD spectra analysis and secondary-structure simulation in these peptides. Membrane permeabilization combined with time-kill studies and FITC-labeled imaging, indicated a selective membrane interaction of KFSP1 with bacteria cell membranes. By specially activating NK1 receptor, the hybrid peptides kept the ability of SP to induce intracellular calcium release and ERK1/2 phosphorylation, but unable to stimulate NF-κB phosphorylation. KFSP1 facilitated the survival of mouse macrophage RAW264.7, directly interacting with LPS and inhibiting the LPS-induced NF-κB phosphorylation and TNF-α expression. CONCLUSION Hybridization is a useful strategy to bond the advantages of different peptides. KFSP1 and its analogs are worth of advanced efforts to explore their potential applications as novel antimicrobial agents.
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Affiliation(s)
- Xiaokang Miao
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, Lanzhou 730000, PR China
| | - Tianxiong Zhou
- Institute of Biochemistry and Molecular Biology, School of Life Science Lanzhou University, Lanzhou 730000, PR China
| | - Jingying Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, Lanzhou 730000, PR China
| | - Jingjie Xu
- Institute of Biochemistry and Molecular Biology, School of Life Science Lanzhou University, Lanzhou 730000, PR China
| | - Xiaomin Guo
- Institute of Biochemistry and Molecular Biology, School of Life Science Lanzhou University, Lanzhou 730000, PR China
| | - Hui Hu
- Institute of Biochemistry and Molecular Biology, School of Life Science Lanzhou University, Lanzhou 730000, PR China
| | - Xiaowei Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, Lanzhou 730000, PR China
| | - Mingning Hu
- Institute of Biochemistry and Molecular Biology, School of Life Science Lanzhou University, Lanzhou 730000, PR China
| | - Jingyi Li
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, Lanzhou 730000, PR China
| | - Wenle Yang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, Lanzhou 730000, PR China
| | - Junqiu Xie
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, Lanzhou 730000, PR China
| | - Zhaoqing Xu
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Science, Lanzhou University, Lanzhou 730000, PR China
| | - Lingyun Mou
- Institute of Biochemistry and Molecular Biology, School of Life Science Lanzhou University, Lanzhou 730000, PR China.
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Ma L, Xie X, Liu H, Huang Y, Wu H, Jiang M, Xu P, Ye X, Zhou C. Potent antibacterial activity of MSI-1 derived from the magainin 2 peptide against drug-resistant bacteria. Theranostics 2020; 10:1373-1390. [PMID: 31938070 PMCID: PMC6956804 DOI: 10.7150/thno.39157] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 09/26/2019] [Indexed: 11/05/2022] Open
Abstract
The structural modification of existing AMPs is an effective strategy to develop antimicrobial agents with high-efficiency, low-cost and low-toxicity antimicrobial agents. Methods: Here, we truncated 14-amino-acids at the N-terminus of MSI-78 to obtain MSI and further modified MSI to obtain four peptide analogs: MSI-1, MSI-2, MSI-3 and MSI-4. These peptide mutants were evaluated regarding their antibacterial activity against various sensitive or resistant bacteria; toxicity against mammalian cells or mice; and stability against violent pH, temperature variations and high NaCl concentrations. Finally, we also elucidated the possible mechanisms underlying its mode of action. Results: The results showed that MSI-1 and MSI-3 displayed activity that was superior to that of MSI-78 with MICs of 4-16 μg/ml and MBCs of 8-64 μg/ml, respectively, especially against drug-resistant bacteria, due to the increase in percent helicity and amphiphilicity. However, MSI-3, with higher hydrophobicity and antibacterial activity, had a relatively higher hemolysis rate and toxicity than MSI-1. MSI-1 exerted rapid bactericidal activity and effectively improved the survival rate and wound closure in penicillin-resistant E. coli-infected mice by eliminating bacterial counts in mouse organs or subeschar, further inhibiting the systemic dissemination of bacteria. Additionally, MSI-1 displayed perfect stability against violent pH, temperature variations and high NaCl concentrations and has the ability to circumvent the development of drug resistance. In terms of the mode of action, we found that at the super-MIC level, MSI-1 exhibited direct antimicrobial activity by disrupting the integrity of the bacterial cell membrane, while at the sub-MIC level, it bound to bacterial DNA to inhibit DNA replication and protein expression and ultimately disrupted bacterial biological function. Conclusions: This novel peptide MSI-1 could be a potential candidate for drug development against infection induced by drug-resistant bacteria.
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Purification of WAP domain-containing antimicrobial peptides from green tiger shrimp Peaneaus semisulcatus. Microb Pathog 2019; 140:103920. [PMID: 31843546 DOI: 10.1016/j.micpath.2019.103920] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 12/09/2019] [Accepted: 12/09/2019] [Indexed: 11/23/2022]
Abstract
Antimicrobial peptide crustin was isolated and purified from Penaeus semisulcatus using Sephadox G-100 column gel filtration chromatography. P. semisulcatus crustins was observed as a single band with 14 kDa of molecular weight on SDS-PAGE and the retention time of 46 min in RP-HPLC. Circular dichroism spectra of P. semisulcatus crustin showed alpha helices in its secondary structure followed by random coils. Crystalline nature and functional groups arrangement were investigated by X-Ray Diffraction (XRD) and Fourier Transform Infra-Red spectroscopy (FTIR). P. semisulcatus crustin showed the effective antibacterial activity against Gram positive strains B. thuringienisis (4 μg/ml) and B. pumilis (6 μg/ml) when compare to Gram negative strains. Biofilm Inhibitory Concentration (BIC) were determined for these strains and percentage of biofilm inhibition was confirmed and visualized through in sit microscopic analysis. Hence, we reported the effect of crustin on biofilm inhibition and eradication at low concentrations by using crystal violet staining and confocal microscopic observations. In addition, haemolytic activity of this purified crustin also analysed using human RBCs. The results of this study, suggests that this bio peptide crustin is a potential and promising therapeutic agent to treat drug resistant bacteria and biofilm-related infections.
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Lee JK, Mereuta L, Luchian T, Park Y. Antimicrobial peptide HPA3NT3-A2 effectively inhibits biofilm formation in mice infected with drug-resistant bacteria. Biomater Sci 2019; 7:5068-5083. [PMID: 31555777 DOI: 10.1039/c9bm01051c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Bacterial biofilms formed through secretion of extracellular polymeric substances (EPS) have been implicated in many serious infections and can increase antibiotic resistance by a factor of more than 1000. Here, we examined the abilities of the antimicrobial peptide HPA3NT3-A2 to inhibit and reduce biofilm formation, eliminate EPS, and suppress inflammation in mice infected with clinical isolates of drug-resistant Pseudomonas aeruginosa strains. HPA3NT3-A2 was developed from a desirable analogue peptide, HPA3NT3, derived from residues 2-20 of the Helicobacter pylori ribosomal protein L1. HPA3NT3-A2 showed stronger activity against planktonic cells (MIC: 8 μM) compared to ciprofloxacin or tobramycin (>512 μM), and a favorable minimum biofilm inhibition and elimination concentration. This peptide also neutralized LPS; decreased levels of EPS; inhibited the production of pro-inflammatory cytokines in the lung, kidney, and spleen; decreased white blood cell counts; and increased survival among infected mice.
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Affiliation(s)
- Jong-Kook Lee
- Research Center for Proteinaceous Materials (RCPM), Chosun University, Gwangju 501-759, Korea
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Juretić D, Simunić J. Design of α-helical antimicrobial peptides with a high selectivity index. Expert Opin Drug Discov 2019; 14:1053-1063. [DOI: 10.1080/17460441.2019.1642322] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Davor Juretić
- Mediterranean Institute for Life Sciences, Split, Croatia
- Department of Physics, Faculty of Science, University of Split, Split, Croatia
| | - Juraj Simunić
- Division of molecular biology, Ruđer Bošković Institute, Zagreb, Croatia
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Xiong Y, Yang Z, Zhang J, Li J, Chen P, Xiang Y. Panning using a phage-displayed random peptide library to identify peptides that antagonize the Helicobacter pylori ArsS acid-sensing domain. Microb Pathog 2019; 135:103614. [PMID: 31255726 DOI: 10.1016/j.micpath.2019.103614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/27/2019] [Accepted: 06/26/2019] [Indexed: 01/01/2023]
Abstract
Helicobacter pylori is an important etiological factor involved in chronic gastritis, peptic ulcer, and gastric cancer. There are currently no optimal preventive or therapeutic interventions for H. pylori infection. H. pylori survives in the stomach by sensing and adapting to the highly acidic environment by using the two-component signal transduction system that contains the most widely known gastric acid receptor, ArsRS (which is composed of ArsS and ArsR). This study aimed to identify peptides that antagonize the acid-sensing domain of H. pylori ArsS. These peptides could be used to block the acid-sensing signal and thereby hinder H. pylori adaption to acidic environments to prevent its survival. Using proSite, the functional domains (including the N-terminal acid-sensing domain) of H. pylori J99 ArsS were predicted. The purified recombinant ArsS N-terminal acid-sensing protein (P-ArsS-A) was used as the target in a panning protocol in which peptides from the Ph.D.-7 Phage Display Peptide Library that could bind to P-ArsS-A were identified. As a result, eight phage clones that could specifically bind to P-ArsS-A were obtained and five amino acid sequences were identified, including P03 (MMSYPKH) and P06 (LTPMPNW). An in vitro minimum inhibitory concentration (MIC) evaluation showed that P03 and P06 significantly inhibited the growth of H. pylori J99. The MIC of P03 was 8 μM, and the MIC of P06 was >16 μM, indicating that P03 is a stronger inhibitor compared to P06. This was confirmed by colony counting on blood agar plates after P03 and P06 administration. Using homology modeling and molecular docking analysis, it was shown that P03 and P06 could bind to the ArsS N-terminal domain, and there were four shared binding sites: TYR25, ASN39, ARG73, and GLU74. Additionally, one hydrogen bond was found between P03 and ArsS, which is more cohesive than other forms of bonding (van der Waals force, other non-covalent bonds).
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Affiliation(s)
- Yuxia Xiong
- Department of Pathogenic Biology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, China.
| | - Zhibang Yang
- Department of Pathogenic Biology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, China.
| | - Jin Zhang
- Department of Pathogenic Biology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, China.
| | - Jinyang Li
- College of Clinical Medicine, Chongqing Medical University, Chongqing, 400016, China.
| | - Pu Chen
- Department of Clinical Laboratory, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
| | - Yu Xiang
- Department of Clinical Laboratory, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
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Ko SJ, Kang NH, Kim MK, Park J, Park E, Park GH, Kang TW, Na DE, Park JB, Yi YE, Jeon SH, Park Y. Antibacterial and anti-biofilm activity, and mechanism of action of pleurocidin against drug resistant Staphylococcus aureus. Microb Pathog 2018; 127:70-78. [PMID: 30508627 DOI: 10.1016/j.micpath.2018.11.052] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 11/29/2018] [Indexed: 11/25/2022]
Abstract
The abuse of antibiotics has resulted in the emergence of multi-drug-resistant bacteria. Staphylococcus aureus is a frequent cause of infections, and antibiotic-resistant S. aureus has become a serious problem. Antimicrobial peptides play an important role in innate immunity and are attracting increasing attention as alternative antibiotics. In a previous study, pleurocidin, derived from winter flounder, was identified as a 25-amino acid antimicrobial peptide with no cytotoxicity toward mammalian cells and low hemolytic activity. In the present study, pleurocidin was observed to exhibit antimicrobial activity against gram-positive and gram-negative bacteria, especially against drug resistant S. aureus. Pleurocidin retained its antibacterial activity against drug resistant S. aureus in the presence of a physiological salt concentration. Membrane depolarization assays and propidium iodide uptake indicated that pleurocidin kills bacteria by damaging the integrity of the bacterial membrane. DNA binding assays revealed that pleurocidin binds to DNA. Thus, pleurocidin targets not only the bacterial membrane, but also their DNA. S. aureus biofilms have become a serious problem because of increased resistance to antibiotics. Therefore, we investigated the effect of pleurocidin on biofilm inhibition and eradication using crystal violet staining and microscopic observation. Pleurocidin inhibited and eradicated biofilms at low concentrations. Taken together, the results suggested that pleurocidin is a promising candidate therapeutic agent to treat drug-resistant bacteria and biofilm-related infections.
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Affiliation(s)
- Su Jin Ko
- Department of Biomedical Science, Chosun University, Gwangju, 61452, South Korea
| | - Na Hee Kang
- Department of Biomedical Science, Chosun University, Gwangju, 61452, South Korea
| | - Min Kyung Kim
- Department of Biomedical Science, Chosun University, Gwangju, 61452, South Korea
| | - Jonggwan Park
- Department of Bioinformatics, Kongju National University, Kongju, 38065, South Korea
| | - Eunji Park
- Department of Biomedical Science, Chosun University, Gwangju, 61452, South Korea
| | - Ga Hyeon Park
- Jangseong High School, Jeollanamdo, 57216, South Korea
| | - Tae Woo Kang
- Jangseong High School, Jeollanamdo, 57216, South Korea
| | - Da Eun Na
- Jangseong High School, Jeollanamdo, 57216, South Korea
| | - Jin Bae Park
- Jangseong High School, Jeollanamdo, 57216, South Korea
| | - Yae Eun Yi
- Jangseong High School, Jeollanamdo, 57216, South Korea
| | | | - Yoonkyung Park
- Department of Biomedical Science, Chosun University, Gwangju, 61452, South Korea; Research Center for Proteineous Materials, Chosun University, Gwangju, 61452, South Korea.
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32
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Park SC, Kim JY, Kim EJ, Cheong GW, Lee Y, Choi W, Lee JR, Jang MK. Hydrophilic Linear Peptide with Histidine and Lysine Residues as a Key Factor Affecting Antifungal Activity. Int J Mol Sci 2018; 19:ijms19123781. [PMID: 30486512 PMCID: PMC6321124 DOI: 10.3390/ijms19123781] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 11/23/2018] [Accepted: 11/24/2018] [Indexed: 12/24/2022] Open
Abstract
Increases in the numbers of immunocompromised patients and the emergence of drug-resistance fungal pathogens have led to the need for new, safe, efficacious antifungal agents. In this study, we designed a histidine-lysine-lysine (HKK) motif and synthesized six HKK peptides with repetitions of the motif. These peptides showed length-dependent antifungal activity against drug-susceptible and drug-resistant fungal pathogens via membranolytic or non-membranolytic action. None of the peptides were cytotoxic to rat erythrocytes or NIH3T3 mouse embryonic fibroblasts. Short-length peptides were directly translocated in fungal cytosol and reacted with mitochondria, resulting in apoptosis. Membrane-permeabilizing activity occurred in the presence of long peptides, and peptides were able to transfer to the cytosol and induce reactive oxygen species. Our results suggest that peptides composed only of cationic amino acids may be good candidates as antifungal agents.
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Affiliation(s)
- Seong-Cheol Park
- Department of Polymer Science and Engineering, Sunchon National University, Suncheon, Jeonnam 57922, Korea.
| | - Jin-Young Kim
- Department of Polymer Science and Engineering, Sunchon National University, Suncheon, Jeonnam 57922, Korea.
| | - Eun-Ji Kim
- Department of Polymer Science and Engineering, Sunchon National University, Suncheon, Jeonnam 57922, Korea.
| | - Gang-Won Cheong
- Division of Applied Life Sciences and Research Institute of Natural Science, Gyeongsang National University, Jinju, Gyeongnam 52828, Korea.
| | - Yongjae Lee
- Department of Nutrition and Food Science, Texas A&M University, College Station, TX 77843, USA.
| | - Wonkyun Choi
- National Institute of Ecology (NIE), Seocheon, Choongnam 33657, Korea.
| | - Jung Ro Lee
- National Institute of Ecology (NIE), Seocheon, Choongnam 33657, Korea.
| | - Mi-Kyeong Jang
- Department of Polymer Science and Engineering, Sunchon National University, Suncheon, Jeonnam 57922, Korea.
- The Research Institute for Sanitation and Environment of Coastal Areas, Sunchon National University, Suncheon, Jeonnam 57922, Korea.
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Wang J, Dou X, Song J, Lyu Y, Zhu X, Xu L, Li W, Shan A. Antimicrobial peptides: Promising alternatives in the post feeding antibiotic era. Med Res Rev 2018; 39:831-859. [PMID: 30353555 DOI: 10.1002/med.21542] [Citation(s) in RCA: 292] [Impact Index Per Article: 48.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 09/11/2018] [Accepted: 09/12/2018] [Indexed: 12/15/2022]
Abstract
Antimicrobial peptides (AMPs), critical components of the innate immune system, are widely distributed throughout the animal and plant kingdoms. They can protect against a broad array of infection-causing agents, such as bacteria, fungi, parasites, viruses, and tumor cells, and also exhibit immunomodulatory activity. AMPs exert antimicrobial activities primarily through mechanisms involving membrane disruption, so they have a lower likelihood of inducing drug resistance. Extensive studies on the structure-activity relationship have revealed that net charge, hydrophobicity, and amphipathicity are the most important physicochemical and structural determinants endowing AMPs with antimicrobial potency and cell selectivity. This review summarizes the recent advances in AMPs development with respect to characteristics, structure-activity relationships, functions, antimicrobial mechanisms, expression regulation, and applications in food, medicine, and animals.
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Affiliation(s)
- Jiajun Wang
- Institute of Animal Nutrition, Department of Animal Nutrition, Northeast Agricultural University, Harbin, China
| | - Xiujing Dou
- Institute of Animal Nutrition, Department of Animal Nutrition, Northeast Agricultural University, Harbin, China
| | - Jing Song
- Institute of Animal Nutrition, Department of Animal Nutrition, Northeast Agricultural University, Harbin, China
| | - Yinfeng Lyu
- Institute of Animal Nutrition, Department of Animal Nutrition, Northeast Agricultural University, Harbin, China
| | - Xin Zhu
- Institute of Animal Nutrition, Department of Animal Nutrition, Northeast Agricultural University, Harbin, China
| | - Lin Xu
- Institute of Animal Nutrition, Department of Animal Nutrition, Northeast Agricultural University, Harbin, China
| | - Weizhong Li
- Institute of Animal Nutrition, Department of Animal Nutrition, Northeast Agricultural University, Harbin, China
| | - Anshan Shan
- Institute of Animal Nutrition, Department of Animal Nutrition, Northeast Agricultural University, Harbin, China
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Antibacterial and Antibiofilm Activity and Mode of Action of Magainin 2 against Drug-Resistant Acinetobacter baumannii. Int J Mol Sci 2018; 19:ijms19103041. [PMID: 30301180 PMCID: PMC6213043 DOI: 10.3390/ijms19103041] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 09/28/2018] [Accepted: 09/28/2018] [Indexed: 02/06/2023] Open
Abstract
Antimicrobial peptides (AMPs) are promising therapeutic agents for treating antibiotic-resistant bacterial infections. Previous studies showed that magainin 2 (isolated from African clawed fogs Xenopus laevis) has antimicrobial activity against gram-positive and gram-negative bacteria. The present study was conducted to investigate the antibacterial activity of magainin 2 against Acinetobacter baumannii. Magainin 2 showed excellent antibacterial activity against A. baumannii strains and high stability at physiological salt concentrations. This peptide was not cytotoxic towards HaCaT cells and showed no hemolytic activity. Biofilm inhibition and elimination were significantly induced in all A. baumannii strains exposed to magainin 2. We confirmed the mechanism of magainin 2 on the bacterial outer and inner membranes. Collectively, these results suggest that magainin 2 is an effective antimicrobial and antibiofilm agent against A. baumannii strains.
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Lee MY, Park SC, Jung M, Shin MK, Kang HL, Baik SC, Cheong GW, Jang MK, Lee WK. Cell-selectivity of tryptophan and tyrosine in amphiphilic α-helical antimicrobial peptides against drug-resistant bacteria. Biochem Biophys Res Commun 2018; 505:478-484. [PMID: 30268502 DOI: 10.1016/j.bbrc.2018.09.095] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 09/14/2018] [Indexed: 12/18/2022]
Abstract
The increasing emergence of drug-resistant bacteria creates a requirement for new antibiotics and various types of antibiotic materials such as proteins, peptides, polymers, and chemical compounds. Among these, antimicrobial peptides (AMPs) are considered to be promising antibiotic candidates for clinical treatments. In this study, we have designed a novel series of peptides with repeated sequences of minimum membrane-active motif, 'XWZX' basic sequence (X: lysine or arginine, Z: leucine, tyrosine, valine, or glycine), and an α-helical secondary structure. Some peptides displayed a potent antibacterial activity via membranolytic action and high therapeutic index (toxic dose/minimum inhibitory concentration) in vitro. Furthermore, in vivo experiments using bacterial ear-skin infection models verified that these peptides have the potential to be powerful and safe antibiotics. The present study provides a lead sequence for designing peptide antibiotics against bacterial membranes and information for cell-selectivity of hydrophobic amino acids with aromatic side chains such as Trp and Tyr.
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Affiliation(s)
- Min-Young Lee
- Department of Microbiology, Gyeongsang National University School of Medicine, Jinju, Gyeongnam, 52727, South Korea
| | - Seong-Cheol Park
- Department of Polymer Science and Engineering, Sunchon National University, Suncheon, Jeonnam, 57922, South Korea
| | - Myunghwan Jung
- Department of Microbiology, Gyeongsang National University School of Medicine, Jinju, Gyeongnam, 52727, South Korea
| | - Min-Kyoung Shin
- Department of Microbiology, Gyeongsang National University School of Medicine, Jinju, Gyeongnam, 52727, South Korea
| | - Hyung-Lyun Kang
- Department of Microbiology, Gyeongsang National University School of Medicine, Jinju, Gyeongnam, 52727, South Korea
| | - Seung-Chul Baik
- Department of Microbiology, Gyeongsang National University School of Medicine, Jinju, Gyeongnam, 52727, South Korea
| | - Gang-Won Cheong
- Division of Applied Life Sciences and Research Institute of Natural Science, Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea
| | - Mi-Kyeong Jang
- Department of Polymer Science and Engineering, Sunchon National University, Suncheon, Jeonnam, 57922, South Korea; The Research Institute for Sanitation and Environment of Coastal Areas, Sunchon National University, Suncheon, Jeonnam, 57922, South Korea.
| | - Woo-Kon Lee
- Department of Microbiology, Gyeongsang National University School of Medicine, Jinju, Gyeongnam, 52727, South Korea.
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Arayan LT, Kim HB, Bernardo Reyes AW, Xuan Huy NT, Hong IH, Lee K, Yeom JH, Park Y, Kim S. The immunomodulatory effect of antimicrobial peptide HPA3P restricts Brucella abortus 544 infection in BALB/c mice. Vet Microbiol 2018; 225:17-24. [PMID: 30322527 DOI: 10.1016/j.vetmic.2018.09.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 09/11/2018] [Accepted: 09/12/2018] [Indexed: 11/15/2022]
Abstract
The discovery of antimicrobial peptides (AMPs) in recent years has been promising for the treatment of multidrug resistant pathogenic microbes. Brucellosis is still considered one of the most common zoonoses in the world. In this study, we evaluated the effect HPA3P peptide in the bacterial uptake and intracellular growth of Brucella abortus (B. abortus) 544 in murine macrophages RAW 264.7. HPA3P was further utilized in a mouse model for infection and treatment. This peptide did not show cytotoxicity or bactericidal effect to B. abortus. However, it inhibited bacterial internalization at 0, 15 and 30 min incubation at two different doses at 12 and 24 μM as well as reduced intracellular growth after 2, 24 and 48 h incubation. Mice treated with HPA3P demonstrated a significant 1.01-log reduction (P < 0.0001) and spleen weight reduction compared to the nanocarrier control (P < 0.01). Significant increases in key cytokines Interferon-γ (IFN-γ) and Tumor necrosis factor (TNF) at 3, 7 and 14 days post-infection were observed in HPA3P treated mice similar to the antibiotic control group with both compared to the nanocarrier control. Monocyte chemoattractant protein-1 (MCP-1) was also heightened at 14 days post-infection. Histopathological analysis also suggests reduced bacterial granuloma in the liver and spleens of HPA3P treated group compared with the nanocarrier control group. In this study, the modulation of crucial cytokines IFN-γ and TNF might have led to a considerable reduction in the proliferation of B. abortus in a mouse model of brucellosis. Further investigation might be required to maximize the efficacy of HPA3P treatment in murine brucellosis.
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Affiliation(s)
- Lauren Togonon Arayan
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Hyeun Bum Kim
- Department of Animal Resources Science, Dankook University, Cheonan, 31116, Republic of Korea
| | | | - Ngoc Tran Xuan Huy
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Il Hwa Hong
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Kangseok Lee
- Department of Life Science, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Ji-Hyun Yeom
- Department of Life Science, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Yoonkyung Park
- Department of Biomedical Science, Chosun University, Gwangju, 61452, Republic of Korea
| | - Suk Kim
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea.
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Bhosle GS, Nawale L, Yeware AM, Sarkar D, Fernandes M. Antibacterial and anti-TB tat-peptidomimetics with improved efficacy and half-life. Eur J Med Chem 2018; 152:358-369. [DOI: 10.1016/j.ejmech.2018.04.039] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 03/15/2018] [Accepted: 04/18/2018] [Indexed: 02/03/2023]
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Park J, Kang HK, Choi MC, Chae JD, Son BK, Chong YP, Seo CH, Park Y. Antibacterial activity and mechanism of action of analogues derived from the antimicrobial peptide mBjAMP1 isolated from Branchiostoma japonicum. J Antimicrob Chemother 2018; 73:2054-2063. [DOI: 10.1093/jac/dky144] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 03/21/2018] [Indexed: 12/12/2022] Open
Affiliation(s)
- Jonggwan Park
- Department of Bioinformatics, Kongju National University, Kongju, South Korea
| | - Hee Kyoung Kang
- Department of Biomedical Science, Chosun University, Gwangju, South Korea
| | - Moon-Chang Choi
- Department of Biomedical Science, Chosun University, Gwangju, South Korea
| | - Jeong Don Chae
- Department of Laboratory Medicine, Eulji University-Eulji General Hospital, Seoul, Republic of Korea
| | - Byoung Kwan Son
- Department of Internal Medicine, Eulji University-Eulji General Hospital, Seoul, Republic of Korea
| | - Yong Pil Chong
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Chang Ho Seo
- Department of Bioinformatics, Kongju National University, Kongju, South Korea
| | - Yoonkyung Park
- Department of Biomedical Science, Chosun University, Gwangju, South Korea
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Lee JK, Luchian T, Park Y. New antimicrobial peptide kills drug-resistant pathogens without detectable resistance. Oncotarget 2018; 9:15616-15634. [PMID: 29643997 PMCID: PMC5884652 DOI: 10.18632/oncotarget.24582] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 02/20/2018] [Indexed: 11/25/2022] Open
Abstract
Clavaspirin peptide (CSP) is derived from the pharyngeal tissues of the tunicate Styela clava. The 23-amino acid peptide is histidine-rich and amidated at the N-terminus. CSP possesses low antimicrobial and high hemolytic activity at pH 7.4. Therefore, we designed 4 CSP analogs with substituted hydrophobic amino acids to reduce hydrophobic amino acid interactions. These modifications reduced the aggregation and cytotoxicity of the analogs at pH 7.4. The analogs also showed potent antimicrobial activity by accumulating on bacterial cell surfaces and inducing the lytic mechanism against gram-negative and gram-positive cells at pH 5.5 and 7.4. Moreover, exposure to the CSP-4 analog for up to 29 passages did not induce drug resistance in Staphylococcus aureus. Application of CSP-4 to inflamed skin of hairless mice infected with drug-resistant S. aureus (DRSA) significantly reduced skin infections without damaging dermal collagen or elastin. Topically applied CSP-4 penetrated 25–40 µm in the dermis within 30 min, reducing the levels of Toll-like receptor-2, nuclear factor kappa B (NF-κB), and the pro-inflammatory cytokines tumor necrosis factor- α (TNF-α) and interleukin-1β (IL-1 β). These results suggest that CSP-4 could be a promising topical antimicrobial agent for skin diseases caused by DRSA such as S. aureus CCARM 0027.
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Affiliation(s)
- Jong-Kook Lee
- Research Center for Proteinaceous Materials, Chosun University, Gwangju, Korea.,Department of Biomedical Science, Chosun University, Gwangju, Korea
| | - Tudor Luchian
- Department of Physics, Alexandru I. Cuza University, Iasi, Romania
| | - Yoonkyung Park
- Research Center for Proteinaceous Materials, Chosun University, Gwangju, Korea.,Department of Biomedical Science, Chosun University, Gwangju, Korea
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NK-18, a promising antimicrobial peptide: anti-multidrug resistant leukemia cells and LPS neutralizing properties. Biochimie 2018; 147:143-152. [PMID: 29427740 DOI: 10.1016/j.biochi.2018.02.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 02/05/2018] [Indexed: 12/24/2022]
Abstract
With the increase of multidrug resistance, novel anti-leukemia agents with diverse mechanisms of action are required to address this challenge. NK-18, the core region of mammalian derived protein NK-lysin, effectively inhibited the viability of both multidrug resistant and sensitive leukemia cell lines. Meanwhile, this proliferation inhibition effect was not distinct between sensitive and multidrug resistant leukemia cell line. NK-18 showed selectivity between non-tumorigenic and tumorigenic cells. It preferentially bound to tumor cells whose outer leaflet with high phosphatidylserine content. NK-18 acted on the multidrug resistant leukemia cell line by a rapid pore formation on the cell membrane, it is not easy for K562/ADM cells developing resistance against NK-18. Furthermore, NK-18 could neutralize lipopolysaccharides by electrostatic attraction and reduce NO production. These research data demonstrated NK-18 possesses great advantage in the multidrug resistant leukemia treatment compared with conventional chemotherapies and it could be a potential candidate for further research.
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41
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Kim MK, Kang HK, Ko SJ, Hong MJ, Bang JK, Seo CH, Park Y. Mechanisms driving the antibacterial and antibiofilm properties of Hp1404 and its analogue peptides against multidrug-resistant Pseudomonas aeruginosa. Sci Rep 2018; 8:1763. [PMID: 29379033 PMCID: PMC5789083 DOI: 10.1038/s41598-018-19434-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 12/28/2017] [Indexed: 01/06/2023] Open
Abstract
Hp1404, identified from the venom of the scorpion Heterometrus petersii, displays antimicrobial activity with cytotoxicity. Several synthetic peptides were designed based on the parent peptide Hp1404 to reduce cytotoxicity and improve activity (deletion of glycine and phenylalanine, substitution with leucine and lysine). The analogue peptides generated comprised 12 amino acids and displayed amphipathic α-helical structures, with higher hydrophobic moments and net positive charge than those of the Hp1404. The analogues showed less hemolytic and toxic effects toward mammalian cells than the Hp1404, especially Hp1404-T1e, which exhibited particularly potent antibacterial and antibiofilm activities against multidrug-resistant Pseudomonas aeruginosa (MRPA) strains. The analogue peptide Hp1404-T1e was more stable against salt and trypsin than the Hp1404. Hp1404's mechanism of action involves binding to lipopolysaccharide (LPS), thereby killing bacteria through membrane disruption. Hp1404-T1e kills bacteria more rapidly than Hp1404 and not only seems to bind more strongly to LPS but may also be able to enter bacterial cells and interact with their DNA. Additionally, Hp1404-T1e can effectively kill bacteria in vivo. The results of this study indicate that Hp1404-T1e not only displays antimicrobial activity, but is also functional in physiological conditions, confirming its potential use as an effective therapeutic agent against MRPA.
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Affiliation(s)
- Min Kyung Kim
- Research Center for proteineous Materials (RCPM), Chosun University, Kwangju, Republic of Korea
- Department of Biotechnology and BK21-Plus Research Team for Bioactive Control Technology, Chosun University, Kwangju, Republic of Korea
| | - Hee Kyoung Kang
- Department of Biotechnology and BK21-Plus Research Team for Bioactive Control Technology, Chosun University, Kwangju, Republic of Korea
| | - Su Jin Ko
- Research Center for proteineous Materials (RCPM), Chosun University, Kwangju, Republic of Korea
- Department of Biotechnology and BK21-Plus Research Team for Bioactive Control Technology, Chosun University, Kwangju, Republic of Korea
| | - Min Ji Hong
- Research Center for proteineous Materials (RCPM), Chosun University, Kwangju, Republic of Korea
- Department of Biotechnology and BK21-Plus Research Team for Bioactive Control Technology, Chosun University, Kwangju, Republic of Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, 363-883, Republic of Korea
| | - Chang Ho Seo
- Department of Bioinformatics, Kongju National University, Kongju, 314-701, South Korea
| | - Yoonkyung Park
- Research Center for proteineous Materials (RCPM), Chosun University, Kwangju, Republic of Korea.
- Department of Biotechnology and BK21-Plus Research Team for Bioactive Control Technology, Chosun University, Kwangju, Republic of Korea.
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Antitumor activity of HPA3P through RIPK3-dependent regulated necrotic cell death in colon cancer. Oncotarget 2018; 9:7902-7917. [PMID: 29487701 PMCID: PMC5814268 DOI: 10.18632/oncotarget.24083] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 01/02/2018] [Indexed: 12/28/2022] Open
Abstract
The antimicrobial peptide HPA3 shows anticancer activity in gastric cancer and leukaemia. However, how HPA3 exerts its anticancer activity, as well as whether it also exhibits activity in other cancers, remains unknown. Therefore, the aim of this study was to evaluate the anticancer activity of HPA3 and its analogues in colon cancer and to elucidate the mechanisms responsible for this activity. HPA3P decreased cell viability, whereas HPA3 and HPA3P2 did not decrease cell viability in colon cancer cells compared with control cells. This reduction in cell viability occurred through necrosis, a conclusion supported by our observation of the release of cellular contents, our intracellular PI staining results, and our observation of the release of HMGB1. Moreover, RIPK3 inhibition blocks the reduction of cell viability by HPA3P. Consistent with this finding, we found that knocking down RIPK3 and MLKL, key necroptosis proteins, attenuates the reductions in cell viability induced by HPA3P. Furthermore, HPA3P can improve the anticancer activity of chemotherapeutic agents and exhibits anticancer activity in other cancer cells. These results suggest that HPA3P may have potential as an anticancer agent in the treatment of colon cancer.
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Sharma C, Rokana N, Chandra M, Singh BP, Gulhane RD, Gill JPS, Ray P, Puniya AK, Panwar H. Antimicrobial Resistance: Its Surveillance, Impact, and Alternative Management Strategies in Dairy Animals. Front Vet Sci 2018; 4:237. [PMID: 29359135 PMCID: PMC5766636 DOI: 10.3389/fvets.2017.00237] [Citation(s) in RCA: 131] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 12/15/2017] [Indexed: 01/10/2023] Open
Abstract
Antimicrobial resistance (AMR), one among the most common priority areas identified by both national and international agencies, is mushrooming as a silent pandemic. The advancement in public health care through introduction of antibiotics against infectious agents is now being threatened by global development of multidrug-resistant strains. These strains are product of both continuous evolution and un-checked antimicrobial usage (AMU). Though antibiotic application in livestock has largely contributed toward health and productivity, it has also played significant role in evolution of resistant strains. Although, a significant emphasis has been given to AMR in humans, trends in animals, on other hand, are not much emphasized. Dairy farming involves surplus use of antibiotics as prophylactic and growth promoting agents. This non-therapeutic application of antibiotics, their dosage, and withdrawal period needs to be re-evaluated and rationally defined. A dairy animal also poses a serious risk of transmission of resistant strains to humans and environment. Outlining the scope of the problem is necessary for formulating and monitoring an active response to AMR. Effective and commendably connected surveillance programs at multidisciplinary level can contribute to better understand and minimize the emergence of resistance. Besides, it requires a renewed emphasis on investments into research for finding alternate, safe, cost effective, and innovative strategies, parallel to discovery of new antibiotics. Nevertheless, numerous direct or indirect novel approaches based on host-microbial interaction and molecular mechanisms of pathogens are also being developed and corroborated by researchers to combat the threat of resistance. This review places a concerted effort to club the current outline of AMU and AMR in dairy animals; ongoing global surveillance and monitoring programs; its impact at animal human interface; and strategies for combating resistance with an extensive overview on possible alternates to current day antibiotics that could be implemented in livestock sector.
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Affiliation(s)
- Chetan Sharma
- Department of Dairy Microbiology, College of Dairy Science and Technology, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, India
| | - Namita Rokana
- Department of Dairy Microbiology, College of Dairy Science and Technology, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, India
| | - Mudit Chandra
- Department of Veterinary Microbiology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, India
| | - Brij Pal Singh
- Department of Dairy Microbiology, College of Dairy Science and Technology, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, India
| | - Rohini Devidas Gulhane
- Department of Dairy Microbiology, College of Dairy Science and Technology, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, India
| | - Jatinder Paul Singh Gill
- School of Public Health and Zoonoses, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, India
| | - Pallab Ray
- Department of Medical Microbiology, Post Graduate Institute for Medical Education and Research (PGIMER), Chandigarh, India
| | - Anil Kumar Puniya
- Department of Dairy Microbiology, College of Dairy Science and Technology, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, India
| | - Harsh Panwar
- Department of Dairy Microbiology, College of Dairy Science and Technology, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, India
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Antimicrobial peptide-loaded gold nanoparticle-DNA aptamer conjugates as highly effective antibacterial therapeutics against Vibrio vulnificus. Sci Rep 2017; 7:13572. [PMID: 29051620 PMCID: PMC5648795 DOI: 10.1038/s41598-017-14127-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 10/03/2017] [Indexed: 12/17/2022] Open
Abstract
Vibrio vulnificus causes fatal infections in humans, and antibiotics are commonly used in treatment regimens against V. vulnificus infection. However, the therapeutic effects of antibiotics are limited by multidrug resistance. In this study, we demonstrated that an antimicrobial peptide (AMP), HPA3PHis, loaded onto a gold nanoparticle-DNA aptamer (AuNP-Apt) conjugate (AuNP-Apt-HPA3PHis) is an effective therapeutic tool against V. vulnificus infection in vivo in mice. HPA3PHis induced bacterial cell death through the disruption of membrane integrity of V. vulnificus. The introduction of AuNP-Apt-HPA3PHis into V. vulnificus-infected HeLa cells dramatically reduced intracellular V. vulnificus by 90%, leading to an increase in the viability of the infected cells. Moreover, when V. vulnificus-infected mice were intravenously injected with AuNP-Apt-HPA3PHis, a complete inhibition of V. vulnificus colonization was observed in the mouse organs, leading to a 100% survival rate among the treated mice, whereas all the control mice died within 40 hours of being infected. Therefore, this study demonstrated the potential of an AMP delivered by AuNP-Apt as an effective and rapid treatment option against infection caused by a major pathogen in humans and aquatic animals.
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Park SC, Cheong MS, Kim EJ, Kim JH, Chi YH, Jang MK. Antifungal Effect of Arabidopsis SGT1 Proteins via Mitochondrial Reactive Oxygen Species. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:8340-8347. [PMID: 28871788 DOI: 10.1021/acs.jafc.7b02808] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The highly conserved SGT1 (suppressor of the G2 alleles of skp1) proteins from Arabidopsis are known to contribute to plant resistance to pathogens. While SGT1 proteins respond to fungal pathogens, their antifungal activity is not reported and the mechanism for this inhibition is not well understood. Therefore, recombinant Arabidopsis SGT1 proteins were cloned, expressed, and purified to evaluate their antifungal activity, resulting in their potent inhibition of pathogen growth. Dye-labeled proteins are localized to the cytosol of Candida albicans cells without the disruption of the cell membrane. Moreover, we showed that entry of the proteins into C. albicans cells resulted in the accumulation of reactive oxygen species (ROS) and cell death via altered mitochondrial potential. Morphological changes of C. albicans cells in the presence of proteins were visualized by scanning electron microscopy. Our data suggest that AtSGT1 proteins play a critical role in plant resistance to pathogenic fungal infection and they can be classified to a new plant antifungal protein.
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Affiliation(s)
- Seong-Cheol Park
- Department of Polymer Science and Engineering, Sunchon National University , Suncheon, 57922, Korea
| | - Mi Sun Cheong
- Division of Applied Life Sciences (BK21+) and PMBBRC, Gyeongsang National University , Jinju 52828, Korea
- Institute of Agriculture and Life Science (IALS), Gyeongsang National University , Jinju 52828, Korea
| | - Eun-Ji Kim
- Department of Polymer Science and Engineering, Sunchon National University , Suncheon, 57922, Korea
| | - Jin Hyo Kim
- Institute of Agriculture and Life Science (IALS), Gyeongsang National University , Jinju 52828, Korea
| | - Yong Hun Chi
- Division of Applied Life Sciences (BK21+) and PMBBRC, Gyeongsang National University , Jinju 52828, Korea
| | - Mi-Kyeong Jang
- Department of Polymer Science and Engineering, Sunchon National University , Suncheon, 57922, Korea
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46
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Wu X, Tan S, Xing Y, Pu Q, Wu M, Zhao JX. Graphene oxide as an efficient antimicrobial nanomaterial for eradicating multi-drug resistant bacteria in vitro and in vivo. Colloids Surf B Biointerfaces 2017; 157:1-9. [PMID: 28554055 DOI: 10.1016/j.colsurfb.2017.05.024] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 05/05/2017] [Accepted: 05/10/2017] [Indexed: 12/20/2022]
Abstract
Graphene is a novel two-dimensional nanomaterial with a growing number of practical applications across numerous fields. In this work, we explored potential biomedical applications of graphene oxide (GO) by systematically studying antibacterial capacity of GO in both macrophages and animal models. Three types of bacteria, including Klebsiella pneumoniae (Kp), Escherichia coli (E. coli) and P. aeruginosa (Pa) were used for in vitro study. Kp was also selected as a representative multidrug resistant (MDR) bacterium for in vivo study. In in vitro study, GO effectively eradicated Kp in agar dishes and thus protected alveolar macrophages (AM) from Kp infection in the culture. In the in vivo evaluation, GO were introduced intranasally into mouse lungs followed by testing organ tissue damage including lung, liver, spleen, and kidneys, polymorphonuclear neutrophil (PMN) penetration, bacterial dissemination, and mortality in Kp-infected mice. We found that GO can prohibit the growth and spread of Kp both in vitro and in vivo, resulting in significantly increased cell survival rate, less tissue injury, subdued inflammatory response, and prolonged mice survival. These findings indicate that GO could be a promising biomaterial for effectively controlling MDR pathogens.
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Affiliation(s)
- Xu Wu
- Department of Chemistry, University of North Dakota, Grand Forks, ND 58202, USA
| | - Shirui Tan
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND, USA; Laboratory of Biochemistry and Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China
| | - Yuqian Xing
- Department of Chemistry, University of North Dakota, Grand Forks, ND 58202, USA
| | - Qinqin Pu
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND, USA
| | - Min Wu
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND, USA.
| | - Julia Xiaojun Zhao
- Department of Chemistry, University of North Dakota, Grand Forks, ND 58202, USA.
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Zhong G, Cheng J, Liang ZC, Xu L, Lou W, Bao C, Ong ZY, Dong H, Yang YY, Fan W. Short Synthetic β-Sheet Antimicrobial Peptides for the Treatment of Multidrug-Resistant Pseudomonas aeruginosa Burn Wound Infections. Adv Healthc Mater 2017; 6. [PMID: 28135045 DOI: 10.1002/adhm.201601134] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 12/12/2016] [Indexed: 12/28/2022]
Abstract
Pseudomonas aeruginosa is often implicated in burn wound infections; its inherent drug resistance often renders these infections extremely challenging to treat. This is further compounded by the problem of emerging drug resistance and the dearth of novel antimicrobial drug discovery in recent years. In the perennial search for effective antimicrobial compounds, the authors identify short synthetic β-sheet folding peptides, IRIKIRIK (IK8L), IRIkIrIK (IK8-2D), and irikirik (IK8D) as prime candidates owing to their high potency against Gram-negative bacteria. In this study, the peptides are first assayed against 20 clinically isolated multidrug-resistant P. aeruginosa strains in comparison with the conventional antibiotics imipenem and ceftazidime, and IK8L is demonstrated to be the most effective. IK8L also exhibits superior antibacterial killing kinetics compared to imipenem and ceftazidime. From transmission electron microscopy, confocal microscopy, and protein release analyses, IK8L shows membrane-lytic antimicrobial mechanism. Repeated use of IK8L does not induce drug resistance, while the bacteria develop resistance against the antibiotics after several times of treatment at sublethal doses. Analysis of mouse blood serum chemistry reveals that peptide does not induce systemic toxicity. The potential utility of IK8L in the in vivo treatment of P. aeruginosa-infected burn wounds is further demonstrated in a mouse model.
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Affiliation(s)
- Guansheng Zhong
- Program of Innovative Therapeutics; Division of Hepatobiliary and Pancreatic Surgery; Department of Surgery; First Affiliated Hospital; School of Medicine; Zhejiang University; Key Laboratory of Combined Multi-organ Transplantation; Ministry of Public Health; Key Laboratory of Organ Transplantation; Zhejiang Province Hangzhou 310003 China
| | - Junchi Cheng
- Program of Innovative Therapeutics; Division of Hepatobiliary and Pancreatic Surgery; Department of Surgery; First Affiliated Hospital; School of Medicine; Zhejiang University; Key Laboratory of Combined Multi-organ Transplantation; Ministry of Public Health; Key Laboratory of Organ Transplantation; Zhejiang Province Hangzhou 310003 China
| | - Zhen Chang Liang
- Institute of Bioengineering and Nanotechnology; 31 Biopolis Way, The Nanos Singapore 138669 Singapore
| | - Liang Xu
- Program of Innovative Therapeutics; Division of Hepatobiliary and Pancreatic Surgery; Department of Surgery; First Affiliated Hospital; School of Medicine; Zhejiang University; Key Laboratory of Combined Multi-organ Transplantation; Ministry of Public Health; Key Laboratory of Organ Transplantation; Zhejiang Province Hangzhou 310003 China
| | - Weiyang Lou
- Program of Innovative Therapeutics; Division of Hepatobiliary and Pancreatic Surgery; Department of Surgery; First Affiliated Hospital; School of Medicine; Zhejiang University; Key Laboratory of Combined Multi-organ Transplantation; Ministry of Public Health; Key Laboratory of Organ Transplantation; Zhejiang Province Hangzhou 310003 China
| | - Chang Bao
- Program of Innovative Therapeutics; Division of Hepatobiliary and Pancreatic Surgery; Department of Surgery; First Affiliated Hospital; School of Medicine; Zhejiang University; Key Laboratory of Combined Multi-organ Transplantation; Ministry of Public Health; Key Laboratory of Organ Transplantation; Zhejiang Province Hangzhou 310003 China
| | - Zhan Yuin Ong
- School of Physics and Astronomy and Leeds Institute of Biomedical and Clinical Sciences; University of Leeds; Leeds LS2 9JT UK
| | - Huihui Dong
- Program of Innovative Therapeutics; Division of Hepatobiliary and Pancreatic Surgery; Department of Surgery; First Affiliated Hospital; School of Medicine; Zhejiang University; Key Laboratory of Combined Multi-organ Transplantation; Ministry of Public Health; Key Laboratory of Organ Transplantation; Zhejiang Province Hangzhou 310003 China
| | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology; 31 Biopolis Way, The Nanos Singapore 138669 Singapore
| | - Weimin Fan
- Program of Innovative Therapeutics; Division of Hepatobiliary and Pancreatic Surgery; Department of Surgery; First Affiliated Hospital; School of Medicine; Zhejiang University; Key Laboratory of Combined Multi-organ Transplantation; Ministry of Public Health; Key Laboratory of Organ Transplantation; Zhejiang Province Hangzhou 310003 China
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Yeom JH, Joo M, Lee B, Kim KP, Ha NC, Park Y, Bae J, Lee K. Intracellular delivery of recombinant proteins via gold nanoparticle–DNA aptamer composites is independent of the protein physicochemical properties and cell type. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2016.09.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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49
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Yeom JH, Lee B, Kim D, Lee JK, Kim S, Bae J, Park Y, Lee K. Gold nanoparticle-DNA aptamer conjugate-assisted delivery of antimicrobial peptide effectively eliminates intracellular Salmonella enterica serovar Typhimurium. Biomaterials 2016; 104:43-51. [PMID: 27424215 DOI: 10.1016/j.biomaterials.2016.07.009] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 07/05/2016] [Accepted: 07/06/2016] [Indexed: 11/24/2022]
Abstract
Antimicrobial peptides (AMPs) are a promising new class of antibacterial compounds. However, their applications in the treatment of intracellular pathogenic bacteria have been limited by their in vivo instability and low penetrating ability into mammalian cells. Here, we report that gold nanoparticles conjugated with DNA aptamer (AuNP-Apt) efficiently delivered AMPs into mammalian living systems with enhanced stability of the AMPs. C-terminally hexahistidine-tagged A3-APO (A3-APO(His)) AMPs were loaded onto AuNPs conjugated with His-tag DNA aptamer (AuNP-Apt(His)) by simple mixing and were delivered into Salmonella enterica serovar Typhimurium (S. Typhimurium)-infected HeLa cells, resulting in the increased viability of host cells due to the elimination of intracellular S. Typhimurium cells. Furthermore, the intravenous injection of AuNP-Apt(His) loaded with A3-APO(His) into S. Typhimurium-infected mice resulted in a complete inhibition of S. Typhimurium colonization in the mice organs, leading to 100% survival of the mice. Therefore, AuNP-Apt(His) can serve as an innovative platform for AMP therapeutics to treat intracellular bacterial infections in mammals.
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Affiliation(s)
- Ji-Hyun Yeom
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Boeun Lee
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Daeyoung Kim
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Jong-Kook Lee
- Department of Biomedical Science, Chosun University, Gwangju 61452, Republic of Korea
| | - Suk Kim
- Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Jeehyeon Bae
- School of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea.
| | - Yoonkyung Park
- Department of Biomedical Science, Chosun University, Gwangju 61452, Republic of Korea.
| | - Kangseok Lee
- Department of Life Science, Chung-Ang University, Seoul 06974, Republic of Korea.
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Ma L, Wang Y, Wang M, Tian Y, Kang W, Liu H, Wang H, Dou J, Zhou C. Effective antimicrobial activity of Cbf-14, derived from a cathelin-like domain, against penicillin-resistant bacteria. Biomaterials 2016; 87:32-45. [DOI: 10.1016/j.biomaterials.2016.02.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 02/04/2016] [Indexed: 12/26/2022]
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