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Shamsuzzamn M, Kim S, Choi YJ, Kim B, Dahal RH, Shin M, Kim J. Therapeutic Phage Candidates for Targeting Prevalent Sequence Types of Carbapenem-Resistant Escherichia coli. Foodborne Pathog Dis 2024. [PMID: 39045774 DOI: 10.1089/fpd.2024.0023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024] Open
Abstract
Carbapenem-resistant Escherichia coli (CREC) is a global threat to public health; therefore, alternative treatment options are urgently needed. Bacteriophages have emerged as promising candidates for combating CREC infections. This study aimed to investigate the genetic basis of phage sensitivity in CREC by evaluating carbapenem resistance among multidrug-resistant (MDR) E. coli isolated in Daegu, South Korea and analyzing their sequence types (STs) with phage susceptibility spectra. Among the 60 MDR E. coli isolates, 80.4% were identified as CREC, with 77.0% demonstrating resistance to imipenem and 66.6% to meropenem. Moreover, 70 lytic E. coli bacteriophages were isolated from hospital sewage water and evaluated against those 60 E. coli isolates. The phages exhibited lytic activity of 33%-60%, with average titers ranging from 5.6 × 1012 to 2.4 × 1013 PFU/mL (Plaque-Forming Unit). Furthermore, multilocus sequence typing (MLST) analysis of the bacterial isolates revealed 14 distinct STs, mostly belonging to ST131, ST410, and ST648. Notably, the phage susceptibility spectra of ST73, ST13003, ST648, ST2311, ST167, ST405, ST607, ST7962, and ST131 were significantly different. Thus, the isolated phages can effectively lyse CREC isolates, particularly those with clinically dominant STs. Conversely, ST410 exhibited a 14.2%-87.14% susceptibility spectrum, whereas ST1139, ST1487, ST10, and ST206 did not lyse, suggesting the presence of more resistant STs. Future studies are warranted to identify the reasons behind this resistance and address it. Ultimately, this study will aid in developing focused treatments to address these pressing global health issues.
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Affiliation(s)
- Md Shamsuzzamn
- Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Shukho Kim
- Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Yoon-Jung Choi
- Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Bokyung Kim
- Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Ram Hari Dahal
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Minsang Shin
- Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Jungmin Kim
- Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
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Dessinioti C, Katsambas A. The Microbiome and Acne: Perspectives for Treatment. Dermatol Ther (Heidelb) 2024; 14:31-44. [PMID: 38183614 PMCID: PMC10828138 DOI: 10.1007/s13555-023-01079-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 11/28/2023] [Indexed: 01/08/2024] Open
Abstract
The skin microbiome consists of the microorganisms populating the human skin. Cutibacterium acnes (C. acnes, formerly named Propionibacterium acnes) is recognized as a key factor in acne development, regulating inflammatory and immune pathways. Dysbiosis has been described as the imbalance in skin microbiome homeostasis and may play a role in acne pathogenesis. Microbial interference has been shown to be a contributor to healthy skin homeostasis and staphylococcal strains may exclude acne-associated C. acnes phylotypes. In this review we present an update on the skin microbiome in acne and discuss how current acne treatments such as benzoyl peroxide, orally administered isotretinoin, and antibiotics may affect the skin microbiome homeostasis. We highlight the collateral damage of acne antibiotics on the skin microbiome, including the risk of antimicrobial resistance and the dysregulation of the microbiome equilibrium that may occur even with short-term antibiotic courses. Consequently, the interest is shifting towards new non-antibiotic pharmacological acne treatments. Orally administered spironolactone is an emerging off-label treatment for adult female patients and topical peroxisome proliferator-activated receptor gamma (PPARγ) modulation is being studied for patients with acne. The potential application of topical or oral probiotics, bacteriotherapy, and phage therapy for acne are further promising areas of future research.
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Affiliation(s)
- Clio Dessinioti
- 1st Department of Dermatology, Andreas Sygros Hospital, University of Athens, 5, Dragoumi Str, 16 121, Athens, Greece.
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Kim JI, Hasnain MA, Moon GS. Expression of a recombinant endolysin from bacteriophage CAP 10-3 with lytic activity against Cutibacterium acnes. Sci Rep 2023; 13:16430. [PMID: 37777575 PMCID: PMC10542754 DOI: 10.1038/s41598-023-43559-z] [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: 06/06/2023] [Accepted: 09/26/2023] [Indexed: 10/02/2023] Open
Abstract
The bacteriophage CAP 10-3 forming plaques against Cutibacterium acnes which causes skin acne was previously isolated from human skin acne lesion. Incomplete whole genome sequence (WGS) of the bacteriophage CAP 10-3 was obtained and it had 29,643 bp long nucleotide with 53.86% GC content. The sequence was similar to C. acnes phage PAP 1-1 with a nucleotide sequence identity of 89.63% and the bacteriophage belonged to Pahexavirus. Bioinformatic analysis of the WGS predicted 147 ORFs and functions of 40 CDSs were identified. The predicted endolysin gene of bacteriophage CAP 10-3 was 858 bp long which was deduced as 285 amino acids (~ 31 kDa). The protein had the highest similarity with amino acid sequence of the endolysin from Propionibacterium phage PHL071N05 with 97.20% identity. The CAP 10-3 endolysin gene was amplified by PCR with primer pairs based on the gene sequence, cloned into an expression vector pET-15b and transformed into Escherichia coli BL21(DE3) strain. The predicted protein band (~ 33 kDa) for the recombinant endolysin was detected in an SDS-PAGE gel and western blot assay. The concentrated supernatant of cell lysate from E. coli BL21(DE3) (pET-15b_CAP10-3 end) and a partially purified recombinant CAP 10-3 endolysin showed antibacterial activity against C. acnes KCTC 3314 in a dose-dependent manner. In conclusion, the recombinant CAP 10-3 endolysin was successfully produced in E. coli strain and it can be considered as a therapeutic agent candidate for treatment of human skin acne.
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Affiliation(s)
- Ja-I Kim
- Major of Biotechnology, Korea National University of Transportation, Jeungpyeong, 27909, Korea
| | - Muhammad Adeel Hasnain
- Major in IT·Biohealth Convergence, Department of IT·Energy Convergence, Graduate School, Korea National University of Transportation, Chungju, 27469, Korea
| | - Gi-Seong Moon
- Major of Biotechnology, Korea National University of Transportation, Jeungpyeong, 27909, Korea.
- Major in IT·Biohealth Convergence, Department of IT·Energy Convergence, Graduate School, Korea National University of Transportation, Chungju, 27469, Korea.
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Topical phage therapy in a mouse model of Cutibacterium acnes-induced acne-like lesions. Nat Commun 2023; 14:1005. [PMID: 36813793 PMCID: PMC9947178 DOI: 10.1038/s41467-023-36694-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 02/14/2023] [Indexed: 02/24/2023] Open
Abstract
Acne vulgaris is a common neutrophil-driven inflammatory skin disorder in which Cutibacterium acnes (C. acnes) is known to play a key role. For decades, antibiotics have been widely employed to treat acne vulgaris, inevitably resulting in increased bacterial antibiotic resistance. Phage therapy is a promising strategy to combat the growing challenge of antibiotic-resistant bacteria, utilizing viruses that specifically lyse bacteria. Herein, we explore the feasibility of phage therapy against C. acnes. Eight novel phages, isolated in our laboratory, and commonly used antibiotics eradicate 100% of clinically isolated C. acnes strains. Topical phage therapy in a C. acnes-induced acne-like lesions mouse model affords significantly superior clinical and histological scores. Moreover, the decrease in inflammatory response was reflected by the reduced expression of chemokine CXCL2, neutrophil infiltration, and other inflammatory cytokines when compared with the infected-untreated group. Overall, these findings indicate the potential of phage therapy for acne vulgaris as an additional tool to conventional antibiotics.
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Sharma H, Fidan H, Özogul F, Rocha JM. Recent development in the preservation effect of lactic acid bacteria and essential oils on chicken and seafood products. Front Microbiol 2022; 13:1092248. [PMID: 36620022 PMCID: PMC9816663 DOI: 10.3389/fmicb.2022.1092248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 11/29/2022] [Indexed: 12/24/2022] Open
Abstract
Chicken and seafood are highly perishable owing to the higher moisture and unsaturated fatty acids content which make them more prone to oxidation and microbial growth. In order to preserve the nutritional quality and extend the shelf-life of such products, consumers now prefer chemical-free alternatives, such as lactic acid bacteria (LAB) and essential oils (EOs), which exert a bio-preservative effect as antimicrobial and antioxidant compounds. This review will provide in-depth information about the properties and main mechanisms of oxidation and microbial spoilage in chicken and seafood. Furthermore, the basic chemistry and mode of action of LAB and EOs will be discussed to shed light on their successful application in chicken and seafood products. Metabolites of LAB and EOs, either alone or in combination, inhibit or retard lipid oxidation and microbial growth by virtue of their principal constituents and bioactive compounds including phenolic compounds and organic acids (lactic acid, propionic acid, and acetic acid) and others. Therefore, the application of LAB and EOs is widely recognized to extend the shelf-life of chicken and seafood products naturally without altering their functional and physicochemical properties. However, the incorporation of any of these agents requires the optimization steps necessary to avoid undesirable sensory changes. In addition, toxicity risks associated with EOs also demand the regularization of an optimum dose for their inclusion in the products.
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Affiliation(s)
- Heena Sharma
- Food Technology Lab, Dairy Technology Division, ICAR-National Dairy Research Institute, Karnal, India
| | - Hafize Fidan
- Department of Tourism and Culinary Management, University of Food Technologies, Plovdiv, Bulgaria
| | - Fatih Özogul
- Department of Seafood Processing Technology, Faculty of Fisheries, Çukurova University, Adana, Türkiye
| | - João Miguel Rocha
- LEPABE – Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Porto, Portugal,ALiCE – Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal,*Correspondence: João Miguel Rocha,
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