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Burke Ó, Zeden MS, O'Gara JP. The pathogenicity and virulence of the opportunistic pathogen Staphylococcus epidermidis. Virulence 2024; 15:2359483. [PMID: 38868991 DOI: 10.1080/21505594.2024.2359483] [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: 02/02/2024] [Accepted: 05/19/2024] [Indexed: 06/14/2024] Open
Abstract
The pervasive presence of Staphylococcus epidermidis and other coagulase-negative staphylococci on the skin and mucous membranes has long underpinned a casual disregard for the infection risk that these organisms pose to vulnerable patients in healthcare settings. Prior to the recognition of biofilm as an important virulence determinant in S. epidermidis, isolation of this microorganism in diagnostic specimens was often overlooked as clinically insignificant with potential delays in diagnosis and onset of appropriate treatment, contributing to the establishment of chronic infection and increased morbidity or mortality. While impressive progress has been made in our understanding of biofilm mechanisms in this important opportunistic pathogen, research into other virulence determinants has lagged S. aureus. In this review, the broader virulence potential of S. epidermidis including biofilm, toxins, proteases, immune evasion strategies and antibiotic resistance mechanisms is surveyed, together with current and future approaches for improved therapeutic interventions.
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Affiliation(s)
- Órla Burke
- Microbiology, School of Biological and Chemical Sciences, University of Galway, Galway, Ireland
| | | | - James P O'Gara
- Microbiology, School of Biological and Chemical Sciences, University of Galway, Galway, Ireland
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2
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D’Arcangelo S, Di Fermo P, Diban F, Ferrone V, D’Ercole S, Di Giulio M, Di Lodovico S. Staphylococcus aureus/Staphylococcus epidermidis from skin microbiota are balanced by Pomegranate peel extract: An eco-sustainable approach. PLoS One 2024; 19:e0308211. [PMID: 39088519 PMCID: PMC11293756 DOI: 10.1371/journal.pone.0308211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 07/17/2024] [Indexed: 08/03/2024] Open
Abstract
The imbalance in skin microbiota is characterized by an increased number of pathogens in respect to commensal microorganisms. Starting from a skin microbiota collection, the aim of this work was to evaluate the possible role of Pomegranate (Punica granatum L.) Peel Extract (PPE) in restoring the skin microbiota balance acting on Staphylococcus spp. PPE was extracted following green methodology by using n-butane and the Dimethyl Ether (DME) solvents and analyzed for phytochemical composition and antimicrobial activity. The PPE antimicrobial action was evaluated against Gram +, Gram - bacteria and yeast reference strains and the most effective extract was tested against the main skin microbiota isolated strains. PPE extracted with DME showed the best antimicrobial action with MICs ranging from 1 to 128 mg/mL; the main active compounds were Catechin, Quercetin, Vanillic acid and Gallic acid. The PPE in DME anti-adhesive effect was examined against S. epidermidis and S. aureus mono and dual-species biofilm formation by biomass quantification and CFU/mL determination. The extract toxicity was evaluated by using Galleria mellonella larvae in vivo model. The extract displayed a significant anti-adhesive activity with a remarkable species-specific action at 4 and 8 mg/mL against S. epidermidis and S. aureus mono and dual-species biofilms. PPE in DME could represent an eco-sustainable non-toxic strategy to affect the Staphylococcal skin colonization in a species-specific way. The innovation of this work is represented by the reuse of food waste to balance skin microbiota.
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Affiliation(s)
- Sara D’Arcangelo
- Department of Pharmacy, University “G. d’Annunzio” Chieti-Pescara, Chieti, Italy
| | - Paola Di Fermo
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” Chieti- Pescara, Chieti, Italy
| | - Firas Diban
- Department of Pharmacy, University “G. d’Annunzio” Chieti-Pescara, Chieti, Italy
| | - Vincenzo Ferrone
- Department of Pharmacy, University “G. d’Annunzio” Chieti-Pescara, Chieti, Italy
| | - Simonetta D’Ercole
- Department of Medical, Oral and Biotechnological Sciences, University “G. d’Annunzio” Chieti- Pescara, Chieti, Italy
| | - Mara Di Giulio
- Department of Pharmacy, University “G. d’Annunzio” Chieti-Pescara, Chieti, Italy
| | - Silvia Di Lodovico
- Department of Pharmacy, University “G. d’Annunzio” Chieti-Pescara, Chieti, Italy
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3
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Lane Starr NM, Al-Rayyan N, Smith JM, Sandstrom S, Swaney MH, Salamzade R, Steidl O, Kalan LR, Singh AM. Combined metagenomic- and culture-based approaches to investigate bacterial strain-level associations with medication-controlled mild-moderate atopic dermatitis. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. GLOBAL 2024; 3:100259. [PMID: 38779310 PMCID: PMC11109885 DOI: 10.1016/j.jacig.2024.100259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 01/05/2024] [Accepted: 01/27/2024] [Indexed: 05/25/2024]
Abstract
Background The skin microbiome is disrupted in atopic dermatitis (AD). Existing research focuses on moderate to severe, unmedicated disease. Objective We sought to investigate metagenomic- and culture-based bacterial strain-level differences in mild, medicated AD and the effects these have on human keratinocytes (HKs). Methods Skin swabs from anterior forearms were collected from 20 pediatric participants (11 participants with AD sampled at lesional and nonlesional sites and 9 age- and sex-matched controls). Participants had primarily mild to moderate AD and maintained medication use. Samples were processed for microbial metagenomic sequencing and bacterial isolation. Isolates identified as Staphylococcus aureus were tested for enterotoxin production. HK cultures were treated with cell-free conditioned media from representative Staphylococcus species to measure barrier effects. Results Metagenomic sequencing identified significant differences in microbiome composition between AD and control groups. Differences were seen at the species and strain levels for Staphylococci, with S aureus found only in participants with AD and differences in Staphylococcus epidermidis strains between control and AD swabs. These strains showed differences in toxin gene presence, which was confirmed in vitro for S aureus enterotoxins. The strain from the participant with the most severe AD produced enterotoxin B levels more than 100-fold higher than the other strains (P < .001). Strains also displayed differential effects on HK metabolism and barrier function. Conclusions Strain-level differences in toxin genes from Staphylococcus strains may explain varying effects on HK, with S aureus and non-aureus strains negatively affecting viability and barrier function. These differences are likely important in AD pathogenesis.
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Affiliation(s)
- Nicole M. Lane Starr
- Department of Pediatrics, School of Medicine and Public Health, University of Wisconsin, Madison, Wis
- Department of Medical Microbiology and Immunology, School of Medicine and Public Health, University of Wisconsin, Madison, Wis
| | - Numan Al-Rayyan
- Department of Pediatrics, School of Medicine and Public Health, University of Wisconsin, Madison, Wis
| | - Jennifer M. Smith
- Department of Pediatrics, School of Medicine and Public Health, University of Wisconsin, Madison, Wis
| | - Shelby Sandstrom
- Department of Medical Microbiology and Immunology, School of Medicine and Public Health, University of Wisconsin, Madison, Wis
| | - Mary Hannah Swaney
- Department of Medical Microbiology and Immunology, School of Medicine and Public Health, University of Wisconsin, Madison, Wis
| | - Rauf Salamzade
- Department of Medical Microbiology and Immunology, School of Medicine and Public Health, University of Wisconsin, Madison, Wis
| | - Olivia Steidl
- Department of Pediatrics, School of Medicine and Public Health, University of Wisconsin, Madison, Wis
| | - Lindsay R. Kalan
- Department of Medical Microbiology and Immunology, School of Medicine and Public Health, University of Wisconsin, Madison, Wis
- Division of Infectious Disease, Department of Medicine, School of Medicine and Public Health, University of Wisconsin, Madison, Wis
- Department of Biochemistry and Biomedical Sciences, M.G. DeGroote Institute for Infectious Disease Research, David Braley Centre for Antibiotic Discovery, McMaster University, Hamilton, Ontario, Canada
| | - Anne Marie Singh
- Department of Pediatrics, School of Medicine and Public Health, University of Wisconsin, Madison, Wis
- Department of Medical Microbiology and Immunology, School of Medicine and Public Health, University of Wisconsin, Madison, Wis
- Department of Dermatology, School of Medicine and Public Health, University of Wisconsin, Madison, Wis
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4
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Nicolaou A, Kendall AC. Bioactive lipids in the skin barrier mediate its functionality in health and disease. Pharmacol Ther 2024; 260:108681. [PMID: 38897295 DOI: 10.1016/j.pharmthera.2024.108681] [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: 02/05/2024] [Revised: 05/11/2024] [Accepted: 06/13/2024] [Indexed: 06/21/2024]
Abstract
Our skin protects us from external threats including ultraviolet radiation, pathogens and chemicals, and prevents excessive trans-epidermal water loss. These varied activities are reliant on a vast array of lipids, many of which are unique to skin, and that support physical, microbiological and immunological barriers. The cutaneous physical barrier is dependent on a specific lipid matrix that surrounds terminally-differentiated keratinocytes in the stratum corneum. Sebum- and keratinocyte-derived lipids cover the skin's surface and support and regulate the skin microbiota. Meanwhile, lipids signal between resident and infiltrating cutaneous immune cells, driving inflammation and its resolution in response to pathogens and other threats. Lipids of particular importance include ceramides, which are crucial for stratum corneum lipid matrix formation and therefore physical barrier functionality, fatty acids, which contribute to the acidic pH of the skin surface and regulate the microbiota, as well as the stratum corneum lipid matrix, and bioactive metabolites of these fatty acids, involved in cell signalling, inflammation, and numerous other cutaneous processes. These diverse and complex lipids maintain homeostasis in healthy skin, and are implicated in many cutaneous diseases, as well as unrelated systemic conditions with skin manifestations, and processes such as ageing. Lipids also contribute to the gut-skin axis, signalling between the two barrier sites. Therefore, skin lipids provide a valuable resource for exploration of healthy cutaneous processes, local and systemic disease development and progression, and accessible biomarker discovery for systemic disease, as well as an opportunity to fully understand the relationship between the host and the skin microbiota. Investigation of skin lipids could provide diagnostic and prognostic biomarkers, and help identify new targets for interventions. Development and improvement of existing in vitro and in silico approaches to explore the cutaneous lipidome, as well as advances in skin lipidomics technologies, will facilitate ongoing progress in skin lipid research.
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Affiliation(s)
- Anna Nicolaou
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9NT, UK; Lydia Becker Institute of Immunology and Inflammation; Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9NT, UK.
| | - Alexandra C Kendall
- Laboratory for Lipidomics and Lipid Biology, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9NT, UK
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Yang XP, Liu YY, Zhang CY, Huang KK, Han SS, Liang BY, Lin Y. An Observational Study: Association Between Atopic Dermatitis and Bacterial Colony of the Skin Based on 16S rRNA Gene Sequencing. Clin Cosmet Investig Dermatol 2024; 17:1649-1659. [PMID: 39050561 PMCID: PMC11268436 DOI: 10.2147/ccid.s464431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 06/23/2024] [Indexed: 07/27/2024]
Abstract
Aim Atopic dermatitis (AD) often accompanies skin infections, and bacterial skin infections often cause persistent and worsening symptoms. In this study, we explored the key changes in the microbiota of AD patients, as well as the effects of different ages and the severity of rash on changes in the microbiota. Patients and Methods A total of 95 AD patients and 77 healthy volunteers were recruited. The AD patients were divided into three groups based age and three groups according to the EASI score. Microorganisms collected from the skin were analyzed through 16S rRNA gene sequencing, revealing species diversity via α and β diversity analyses. Species compositions were compared at the phylum and genus levels. The significance of skin microbiota at the genus level was assessed using the random forest algorithm. Finally, the impact of relationships between different microbial communities on the microbial community composition and the pathogenesis of AD was explored using Pearson correlation coefficients. Results The species diversity of the skin microbiota in the AD group significantly decreased. Compared with that in the healthy volunteers (HV) group, the bacterial diversity in the two groups of samples significantly differed. Staphylococcus dominated the bacterial communities, and as AD symptoms gradually worsened, the abundance of Staphylococcus gradually increased. Among all bacterial genera with a relative abundance greater than 1%, Staphylococcus showed a negative correlation with other genera, and showed significant consistency in specimens from different age groups. Conclusion Changes in the abundance of Staphylococcus in the skin bacterial colonies are the main cause of AD. Brevundimonas, Paracoccus, Corynebacterium, and Veillonella may serve as characteristic biomarkers for AD. These results indicate that altering the microbiota composition of the skin may aid in the treatment of AD.
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Affiliation(s)
- Xian-Ping Yang
- Department of Dermatology, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, Guangdong, People’s Republic of China
| | - Ying-Yao Liu
- The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, People’s Republic of China
| | - Cai-Yun Zhang
- Department of Dermatology, Dongguan Traditional Chinese Medicine Hospital, Dongguan, Guangdong, People’s Republic of China
| | - Kai-Kai Huang
- Department of Dermatology, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, Guangdong, People’s Republic of China
| | - Shan-Shan Han
- Department of Dermatology, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, Guangdong, People’s Republic of China
| | - Bao-Ying Liang
- Department of Dermatology, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, Guangdong, People’s Republic of China
| | - Ying Lin
- Department of Dermatology, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, Guangdong, People’s Republic of China
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Buriti BMADB, Figueiredo PLB, Passos MF, da Silva JKR. Polymer-Based Wound Dressings Loaded with Essential Oil for the Treatment of Wounds: A Review. Pharmaceuticals (Basel) 2024; 17:897. [PMID: 39065747 PMCID: PMC11279661 DOI: 10.3390/ph17070897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 07/03/2024] [Accepted: 07/03/2024] [Indexed: 07/28/2024] Open
Abstract
Wound healing can result in complex problems, and discovering an effective method to improve the healing process is essential. Polymeric biomaterials have structures similar to those identified in the extracellular matrix of the tissue to be regenerated and also avoid chronic inflammation, and immunological reactions. To obtain smart and effective dressings, bioactive agents, such as essential oils, are also used to promote a wide range of biological properties, which can accelerate the healing process. Therefore, we intend to explore advances in the potential for applying hybrid materials in wound healing. For this, fifty scientific articles dated from 2010 to 2023 were investigated using the Web of Science, Scopus, Science Direct, and PubMed databases. The principles of the healing process, use of polymers, type and properties of essential oils and processing techniques, and characteristics of dressings were identified. Thus, the plants Syzygium romanticum or Eugenia caryophyllata, Origanum vulgare, and Cinnamomum zeylanicum present prospects for application in clinical trials due to their proven effects on wound healing and reducing the incidence of inflammatory cells in the site of injury. The antimicrobial effect of essential oils is mainly due to polyphenols and terpenes such as eugenol, cinnamaldehyde, carvacrol, and thymol.
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Affiliation(s)
- Bruna Michele A. de B. Buriti
- Instituto de Ciências Exatas e Naturais, Programa de Pós-Graduação em Química, Universidade Federal do Pará, Belém 66075-110, PA, Brazil;
| | - Pablo Luis B. Figueiredo
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pará, Belém 66079-420, PA, Brazil; (P.L.B.F.); (M.F.P.)
| | - Marcele Fonseca Passos
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Pará, Belém 66079-420, PA, Brazil; (P.L.B.F.); (M.F.P.)
- Programa de Pós-Graduação em Biotecnologia, Universidade Federal do Pará, Belém 66075-110, PA, Brazil
| | - Joyce Kelly R. da Silva
- Instituto de Ciências Exatas e Naturais, Programa de Pós-Graduação em Química, Universidade Federal do Pará, Belém 66075-110, PA, Brazil;
- Programa de Pós-Graduação em Biotecnologia, Universidade Federal do Pará, Belém 66075-110, PA, Brazil
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Yoon SB, Chen L, Robinson IE, Khatib TO, Arthur RA, Claussen H, Zohbi NM, Wu H, Mouw JK, Marcus AI. Subpopulation commensalism promotes Rac1-dependent invasion of single cells via laminin-332. J Cell Biol 2024; 223:e202308080. [PMID: 38551497 PMCID: PMC10982113 DOI: 10.1083/jcb.202308080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 02/02/2024] [Accepted: 03/11/2024] [Indexed: 04/02/2024] Open
Abstract
Phenotypic heterogeneity poses a significant hurdle for cancer treatment but is under-characterized in the context of tumor invasion. Amidst the range of phenotypic heterogeneity across solid tumor types, collectively invading cells and single cells have been extensively characterized as independent modes of invasion, but their intercellular interactions have rarely been explored. Here, we isolated collectively invading cells and single cells from the heterogeneous 4T1 cell line and observed extensive transcriptional and epigenetic diversity across these subpopulations. By integrating these datasets, we identified laminin-332 as a protein complex exclusively secreted by collectively invading cells. Live-cell imaging revealed that laminin-332 derived from collectively invading cells increased the velocity and directionality of single cells. Despite collectively invading and single cells having similar expression of the integrin α6β4 dimer, single cells demonstrated higher Rac1 activation upon laminin-332 binding to integrin α6β4. This mechanism suggests a novel commensal relationship between collectively invading and single cells, wherein collectively invading cells promote the invasive potential of single cells through a laminin-332/Rac1 axis.
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Affiliation(s)
- Sung Bo Yoon
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Luxiao Chen
- Department of Biostatistics and Bioinformatics, Emory University, Atlanta, GA, USA
| | - Isaac E. Robinson
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Tala O. Khatib
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Robert A. Arthur
- Emory Integrated Computational Core, Emory University, Atlanta, GA, USA
| | - Henry Claussen
- Emory Integrated Computational Core, Emory University, Atlanta, GA, USA
| | - Najdat M. Zohbi
- Graduate Medical Education, Piedmont Macon Medical, Macon, GA, USA
| | - Hao Wu
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Janna K. Mouw
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Adam I. Marcus
- Department of Hematology and Medical Oncology, Emory University, Atlanta, GA, USA
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
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Chen Y, Huang X, Liu A, Fan S, Liu S, Li Z, Yang X, Guo H, Wu M, Liu M, Liu P, Fu F, Liu S, Xuan K. Lactobacillus Reuteri Vesicles Regulate Mitochondrial Function of Macrophages to Promote Mucosal and Cutaneous Wound Healing. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309725. [PMID: 38647360 PMCID: PMC11199966 DOI: 10.1002/advs.202309725] [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: 12/12/2023] [Revised: 04/07/2024] [Indexed: 04/25/2024]
Abstract
The interplay between bacteria and their host influences the homeostasis of the human immune microenvironment, and this reciprocal interaction also affects the process of tissue damage repair. A variety of immunomodulatory commensal bacteria reside in the body, capable of delivering membrane vesicles (MVs) to host cells to regulate the local immune microenvironment. This research revealed, for the initial time, the significant enhancement of mucosal and cutaneous wound healing by MVs secreted by the human commensal Lactobacillus reuteri (RMVs) through modulation of the inflammatory environment in wound tissue. Local administration of RMVs reduces the proportion of pro-inflammatory macrophages in inflamed tissues and mitigates the level of local inflammation, thereby facilitating the healing of oral mucosa and cutaneous wounds. The elevated oxidative stress levels in activated pro-inflammatory macrophages can be modulated by RMVs, resulting in phenotypic transformation of macrophages. Furthermore, 3-hydroxypropionaldehyde present in RMVs can decrease the mitochondrial permeability of macrophages and stabilize the mitochondrial membrane potential, thereby promoting the conversion of macrophages to an anti-inflammatory phenotype. This study pioneers the significance of commensal bacterial MVs in tissue injury repair and presents a novel concept for the repair of tissue damage.
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Affiliation(s)
- Yuan Chen
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Xiaoyao Huang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Anqi Liu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Siyuan Fan
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Shiyu Liu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesCenter for Tissue EngineeringSchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Zihan Li
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesCenter for Tissue EngineeringSchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Xiaoxue Yang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Hao Guo
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Meiling Wu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Meng Liu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Peisheng Liu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Fei Fu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Siying Liu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesCenter for Tissue EngineeringSchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
| | - Kun Xuan
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral DiseasesDepartment of Preventive DentistrySchool of StomatologyThe Fourth Military Medical UniversityXi'an710032China
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9
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Tham EH, Chia M, Riggioni C, Nagarajan N, Common JE, Kong HH. The skin microbiome in pediatric atopic dermatitis and food allergy. Allergy 2024; 79:1470-1484. [PMID: 38308490 PMCID: PMC11142881 DOI: 10.1111/all.16044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 01/03/2024] [Accepted: 01/23/2024] [Indexed: 02/04/2024]
Abstract
The skin microbiome is an extensive community of bacteria, fungi, mites, viruses and archaea colonizing the skin. Fluctuations in the composition of the skin microbiome have been observed in atopic dermatitis (AD) and food allergy (FA), particularly in early life, established disease, and associated with therapeutics. However, AD is a multifactorial disease characterized by skin barrier aberrations modulated by genetics, immunology, and environmental influences, thus the skin microbiome is not the sole feature of this disease. Future research should focus on mechanistic understanding of how early-life skin microbial shifts may influence AD and FA onset, to guide potential early intervention strategies or as microbial biomarkers to identify high-risk infants who may benefit from possible microbiome-based biotherapeutic strategies. Harnessing skin microbes as AD biotherapeutics is an emerging field, but more work is needed to investigate whether this approach can lead to sustained clinical responses.
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Affiliation(s)
- Elizabeth Huiwen Tham
- Khoo Teck Puat-National University Children’s Medical Institute, National University Health System (NUHS), Singapore
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Minghao Chia
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Carmen Riggioni
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Niranjan Nagarajan
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), Singapore
| | - John E.A. Common
- A*STAR Skin Research Labs (A*SRL), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Heidi H. Kong
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892, USA
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10
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Chen J, Liu C, Yang Y, Gong X, Qian H. The stratum corneum barrier: impaired function in relation to associated lipids and proteins. Tissue Barriers 2024:2361197. [PMID: 38818698 DOI: 10.1080/21688370.2024.2361197] [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: 04/03/2024] [Accepted: 05/23/2024] [Indexed: 06/01/2024] Open
Abstract
The skin is the largest organ of the human body and is widely considered to be the first-line defense of the body, providing essential protection against mechanical, physical, and chemical damage. Keratinocytes are the primary cells of the outer layer of the epidermis, which acts as a mechanical and permeability barrier. The epidermis is a permanently renewed tissue where undifferentiated keratinocytes located at the basal layer proliferate and migrate to the overlying layers. Here we report that some components of keratinocytes affect the formation and differentiation of the stratum corneum, which is the most specialized layer of the epidermis.
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Affiliation(s)
- Jie Chen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, Xuhui, District, China
| | - Changjie Liu
- SIMPLY THIS Skin Ecology Research Institute, Shili (Shanghai) Biotechology Co., Ltd, Shanghai, China
| | - Yuan Yang
- SIMPLY THIS Skin Ecology Research Institute, Shili (Shanghai) Biotechology Co., Ltd, Shanghai, China
| | - Xue Gong
- SIMPLY THIS Skin Ecology Research Institute, Shili (Shanghai) Biotechology Co., Ltd, Shanghai, China
| | - Huan Qian
- Department of Plastic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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11
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Chen PY, Shen M, Cai SQ, Tang ZW. Association Between Atopic Dermatitis and Aging: Clinical Observations and Underlying Mechanisms. J Inflamm Res 2024; 17:3433-3448. [PMID: 38828054 PMCID: PMC11144009 DOI: 10.2147/jir.s467099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 05/17/2024] [Indexed: 06/05/2024] Open
Abstract
As one of the most prevalent chronic inflammatory skin diseases, atopic dermatitis (AD) increasingly affects the aging population. Amid the ongoing global aging trend, it's essential to recognize the intricate relationship between AD and aging. This paper reviews existing knowledge, summarizing clinical observations of associations between AD and aging-related diseases in various systems, including endocrine, cardiovascular, and neurological. Additionally, it discusses major theories explaining the correlation, encompassing skin-mucosal barriers, systemic inflammation and stress, genes, signal transduction, and environmental and behavioral factors. The association between AD and aging holds significant importance, both in population and basic perspectives. While further research is warranted, this paper aims to inspire deeper exploration of inflammation/allergy-aging dynamics and the timely management of elderly patients with AD.
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Affiliation(s)
- Peng-Yu Chen
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, People’s Republic of China
| | - Minxue Shen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, 410008, People’s Republic of China
- Hunan Engineering Research Center of Skin Health and Disease; Hunan Key Laboratory of Skin Cancer and Psoriasis (Xiangya Hospital), Changsha, 410008, People’s Republic of China
- Department of Social Medicine and Health Management, Xiangya School of Public Health, Central South University, Changsha, 410078, People’s Republic of China
| | - Sui-Qing Cai
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, People’s Republic of China
| | - Zhen-Wei Tang
- Department of Dermatology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, People’s Republic of China
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12
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Kengmo Tchoupa A, Elsherbini AMA, Camus J, Fu X, Hu X, Ghaneme O, Seibert L, Lebtig M, Böcker MA, Horlbeck A, Lambidis SP, Schittek B, Kretschmer D, Lämmerhofer M, Peschel A. Lipase-mediated detoxification of host-derived antimicrobial fatty acids by Staphylococcus aureus. Commun Biol 2024; 7:572. [PMID: 38750133 PMCID: PMC11096360 DOI: 10.1038/s42003-024-06278-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 05/02/2024] [Indexed: 05/18/2024] Open
Abstract
Long-chain fatty acids with antimicrobial properties are abundant on the skin and mucosal surfaces, where they are essential to restrict the proliferation of opportunistic pathogens such as Staphylococcus aureus. These antimicrobial fatty acids (AFAs) elicit bacterial adaptation strategies, which have yet to be fully elucidated. Characterizing the pervasive mechanisms used by S. aureus to resist AFAs could open new avenues to prevent pathogen colonization. Here, we identify the S. aureus lipase Lip2 as a novel resistance factor against AFAs. Lip2 detoxifies AFAs via esterification with cholesterol. This is reminiscent of the activity of the fatty acid-modifying enzyme (FAME), whose identity has remained elusive for over three decades. In vitro, Lip2-dependent AFA-detoxification was apparent during planktonic growth and biofilm formation. Our genomic analysis revealed that prophage-mediated inactivation of Lip2 was rare in blood, nose, and skin strains, suggesting a particularly important role of Lip2 for host - microbe interactions. In a mouse model of S. aureus skin colonization, bacteria were protected from sapienic acid (a human-specific AFA) in a cholesterol- and lipase-dependent manner. These results suggest Lip2 is the long-sought FAME that exquisitely manipulates environmental lipids to promote bacterial growth in otherwise inhospitable niches.
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Affiliation(s)
- Arnaud Kengmo Tchoupa
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Infection Biology Section, University of Tübingen, Tübingen, Germany.
- Cluster of Excellence EXC 2124 Controlling Microbes to Fight Infections, University of Tübingen, Tübingen, Germany.
- German Center for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany.
| | - Ahmed M A Elsherbini
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Infection Biology Section, University of Tübingen, Tübingen, Germany
- Cluster of Excellence EXC 2124 Controlling Microbes to Fight Infections, University of Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Justine Camus
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Infection Biology Section, University of Tübingen, Tübingen, Germany
- Cluster of Excellence EXC 2124 Controlling Microbes to Fight Infections, University of Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Xiaoqing Fu
- Institute of Pharmaceutical Sciences, University of Tübingen, Tübingen, Germany
| | - Xuanheng Hu
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Infection Biology Section, University of Tübingen, Tübingen, Germany
- Cluster of Excellence EXC 2124 Controlling Microbes to Fight Infections, University of Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Oumayma Ghaneme
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Infection Biology Section, University of Tübingen, Tübingen, Germany
- Cluster of Excellence EXC 2124 Controlling Microbes to Fight Infections, University of Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Lea Seibert
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Infection Biology Section, University of Tübingen, Tübingen, Germany
- Cluster of Excellence EXC 2124 Controlling Microbes to Fight Infections, University of Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Marco Lebtig
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Infection Biology Section, University of Tübingen, Tübingen, Germany
- Cluster of Excellence EXC 2124 Controlling Microbes to Fight Infections, University of Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Marieke A Böcker
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Infection Biology Section, University of Tübingen, Tübingen, Germany
- Cluster of Excellence EXC 2124 Controlling Microbes to Fight Infections, University of Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Anima Horlbeck
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Infection Biology Section, University of Tübingen, Tübingen, Germany
- Cluster of Excellence EXC 2124 Controlling Microbes to Fight Infections, University of Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Stilianos P Lambidis
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Infection Biology Section, University of Tübingen, Tübingen, Germany
- Cluster of Excellence EXC 2124 Controlling Microbes to Fight Infections, University of Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Birgit Schittek
- Cluster of Excellence EXC 2124 Controlling Microbes to Fight Infections, University of Tübingen, Tübingen, Germany
- Dermatology Department, University Hospital Tübingen, Tübingen, Germany
| | - Dorothee Kretschmer
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Infection Biology Section, University of Tübingen, Tübingen, Germany
- Cluster of Excellence EXC 2124 Controlling Microbes to Fight Infections, University of Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - Michael Lämmerhofer
- Institute of Pharmaceutical Sciences, University of Tübingen, Tübingen, Germany
| | - Andreas Peschel
- Interfaculty Institute of Microbiology and Infection Medicine Tübingen, Infection Biology Section, University of Tübingen, Tübingen, Germany
- Cluster of Excellence EXC 2124 Controlling Microbes to Fight Infections, University of Tübingen, Tübingen, Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
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13
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Lee J, Mannan AA, Miyano T, Irvine AD, Tanaka RJ. In Silico Elucidation of Key Drivers of Staphyloccocus aureus- Staphyloccocus epidermidis-Induced Skin Damage in Atopic Dermatitis Lesions. JID INNOVATIONS 2024; 4:100269. [PMID: 38766490 PMCID: PMC11101946 DOI: 10.1016/j.xjidi.2024.100269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 01/22/2024] [Accepted: 01/29/2024] [Indexed: 05/22/2024] Open
Abstract
Staphylococcus aureus (SA) colonizes and can damage skin in atopic dermatitis lesions, despite being commonly found with Staphylococcus epidermidis (SE), a commensal that can inhibit SA's virulence and kill SA. In this study, we developed an in silico model, termed a virtual skin site, describing the dynamic interplay between SA, SE, and the skin barrier in atopic dermatitis lesions to investigate the mechanisms driving skin damage by SA and SE. We generated 106 virtual skin sites by varying model parameters to represent different skin physiologies and bacterial properties. In silico analysis revealed that virtual skin sites with no skin damage in the model were characterized by parameters representing stronger SA and SE growth attenuation than those with skin damage. This inspired an in silico treatment strategy combining SA-killing with an enhanced SA-SE growth attenuation, which was found through simulations to recover many more damaged virtual skin sites to a non-damaged state, compared with SA-killing alone. This study demonstrates that in silico modelling can help elucidate the key factors driving skin damage caused by SA-SE colonization in atopic dermatitis lesions and help propose strategies to control it, which we envision will contribute to the design of promising treatments for clinical studies.
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Affiliation(s)
- Jamie Lee
- Department of Bioengineering, Imperial College London, London, United Kingdom
| | - Ahmad A. Mannan
- Department of Bioengineering, Imperial College London, London, United Kingdom
| | - Takuya Miyano
- Department of Bioengineering, Imperial College London, London, United Kingdom
| | - Alan D. Irvine
- Clinical Medicine, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Reiko J. Tanaka
- Department of Bioengineering, Imperial College London, London, United Kingdom
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14
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Saheb Kashaf S, Kong HH. Adding Fuel to the Fire? The Skin Microbiome in Atopic Dermatitis. J Invest Dermatol 2024; 144:969-977. [PMID: 38530677 PMCID: PMC11034722 DOI: 10.1016/j.jid.2024.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 01/07/2024] [Indexed: 03/28/2024]
Abstract
Atopic dermatitis (AD) is a multifactorial, heterogeneous disease characterized by epidermal barrier dysfunction, immune system dysregulation, and skin microbiome alterations. Skin microbiome studies in AD have demonstrated that disease flares are associated with microbial shifts, particularly Staphylococcus aureus predominance. AD-associated S. aureus strains differ from those in healthy individuals across various genomic loci, including virulence factors, adhesion proteins, and proinflammatory molecules-which may contribute to complex microbiome barrier-immune system interactions in AD. Different microbially based treatments for AD have been explored, and their future therapeutic successes will depend on a deeper understanding of the potential microbial contributions to the disease.
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Affiliation(s)
- Sara Saheb Kashaf
- National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA; Pritzker School of Medicine, The University of Chicago, Chicago, Illinois, USA
| | - Heidi H Kong
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland, USA.
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15
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Li M, Kopylova E, Mao J, Namkoong J, Sanders J, Wu J. Microbiome and lipidomic analysis reveal the interplay between skin bacteria and lipids in a cohort study. Front Microbiol 2024; 15:1383656. [PMID: 38666261 PMCID: PMC11043602 DOI: 10.3389/fmicb.2024.1383656] [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: 02/07/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
Human skin acts as a protective barrier between the body and the external environment. Skin microbiome and intercellular lipids in the stratum corneum (SC) are essential for maintaining skin barrier function. However, the interplay between skin bacteria and the lipids is not fully understood. In this study, we characterized the skin microbiome and SC lipid profiles from the forearm and face in a cohort of 57 healthy participants. 16S rRNA gene sequencing showed the skin microbial composition is significantly different between body locations and genders. Female forearm samples have the highest microbial diversity. The relative abundance of Staphylococcus hominis, Micrococcus luteus, Corynebacterium tuberculostearicum, Finegoldia magna, and Moraxellaceae sp. are significantly higher in the forearm than the face. The predictive functional analysis of 16S rRNA gene sequencing by Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt2) and ANCOM-BC showed different bacterial metabolic pathway profiles between body locations or genders, and identified 271 differential pathways, including arginine and polyamine biosynthesis, chorismate biosynthesis pathways, which are more abundant in the female forearm, and sulfur oxidation pathway, which is more abundant in the male face. The SC lipid profiles differ between the body locations as well. Total free fatty acids (FFA), cholesterol sulfate and sphingosine are more abundant in the face. Dihydro-/6-hydroxy/phyto-ceramides are more abundant in the forearm. The correlation analysis of 16S rRNA gene sequencing and lipids revealed novel interplay between the bacteria and skin lipids. Shannon entropy and S. hominis negatively correlated with FFA, cholesterol sulfate and sphingosine; while positively correlated with dihydro-/6-hydroxy/phyto-ceramides. The correlation of predictive pathway profiles and lipids identified pathways involved in amino acids metabolism, carbohydrates degradation, aromatic compounds metabolism and fatty acid degradation metabolism are positively correlated with dihydro-/6-hydroxy/phyto-ceramides and negatively correlated with FFA, cholesterol sulfate and sphingosine. This study provides insights on the potential correlation between skin microbiome and lipids.
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Affiliation(s)
- Min Li
- Colgate-Palmolive Company, Global Technology Center, Piscataway, NJ, United States
| | | | - Junhong Mao
- Colgate-Palmolive Company, Global Technology Center, Piscataway, NJ, United States
| | - Jin Namkoong
- Colgate-Palmolive Company, Global Technology Center, Piscataway, NJ, United States
| | - Jon Sanders
- Clarity Genomics, San Diego, CA, United States
| | - Joanna Wu
- Colgate-Palmolive Company, Global Technology Center, Piscataway, NJ, United States
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16
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Khadka VD, Markey L, Boucher M, Lieberman TD. Commensal skin bacteria exacerbate inflammation and delay skin barrier repair. J Invest Dermatol 2024:S0022-202X(24)00277-X. [PMID: 38604402 DOI: 10.1016/j.jid.2024.03.033] [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: 12/06/2023] [Revised: 03/04/2024] [Accepted: 03/16/2024] [Indexed: 04/13/2024]
Abstract
The skin microbiome can both trigger beneficial immune stimulation and pose a potential infection threat. Previous studies have shown that colonization of mouse skin with the model human skin commensal Staphylococcus epidermidis is protective against subsequent excisional wound or pathogen challenge. However, less is known about concurrent skin damage and exposure to commensal microbes, despite growing interest in interventional probiotic therapy. Here, we address this open question by applying commensal skin bacteria at a high dose to abraded skin. While depletion of the skin microbiome via antibiotics delayed repair from damage, probiotic-like application of commensals-- including the mouse commensal Staphylococcus xylosus, three distinct isolates of S. epidermidis, and all other tested human skin commensals-- also significantly delayed barrier repair. Increased inflammation was observed within four hours of S. epidermidis exposure and persisted through day four, at which point the skin displayed a chronic wound-like inflammatory state with increased neutrophil infiltration, increased fibroblast activity, and decreased monocyte differentiation. Transcriptomic analysis suggested that the prolonged upregulation of early canonical proliferative pathways inhibited the progression of barrier repair. These results highlight the nuanced role of members of the skin microbiome in modulating barrier integrity and indicate the need for caution in their development as probiotics.
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Affiliation(s)
- Veda D Khadka
- Institute for Medical Engineering and Sciences, Massachusetts Institute of Technology; Cambridge, MA, United States; Department of Civil and Environmental Engineering, Massachusetts Institute of Technology; Cambridge, MA, United States
| | - Laura Markey
- Institute for Medical Engineering and Sciences, Massachusetts Institute of Technology; Cambridge, MA, United States; Department of Civil and Environmental Engineering, Massachusetts Institute of Technology; Cambridge, MA, United States
| | - Magalie Boucher
- Division of Comparative Medicine, Massachusetts Institute of Technology; Cambridge, MA, United States
| | - Tami D Lieberman
- Institute for Medical Engineering and Sciences, Massachusetts Institute of Technology; Cambridge, MA, United States; Department of Civil and Environmental Engineering, Massachusetts Institute of Technology; Cambridge, MA, United States; Ragon Institute of Mass General, MIT and Harvard; Cambridge. MA, United States.
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17
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Dreno B, Dekio I, Baldwin H, Demessant AL, Dagnelie MA, Khammari A, Corvec S. Acne microbiome: From phyla to phylotypes. J Eur Acad Dermatol Venereol 2024; 38:657-664. [PMID: 37777343 DOI: 10.1111/jdv.19540] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 07/12/2023] [Indexed: 10/02/2023]
Abstract
Acne vulgaris is a chronic inflammatory skin disease with a complex pathogenesis. Traditionally, the primary pathophysiologic factors in acne have been thought to be: (1) altered sebum production, (2) inflammation, (3) excess keratinization and (4) colonization with the commensal Cutibacterium acnes. However, the role of C. acnes has been unclear, since virtually all adults have C. acnes on their skin yet not all develop acne. In recent years, understanding of the role of C. acnes has expanded. It is still acknowledged to have an important place in acne pathogenesis, but evidence suggests that an imbalance of individual C. acnes phylotypes and an alteration of the skin microbiome trigger acne. In addition, it is now believed that Staphylococcus epidermidis is also an actor in acne development. Together, C. acnes and S. epidermidis maintain and regulate homeostasis of the skin microbiota. Antibiotics, which have long been a staple of acne therapy, induce cutaneous dysbiosis. This finding, together with the long-standing public health edict to spare antibiotic use when possible, highlights the need for a change in acne management strategies. One fertile direction of study for new approaches involves dermocosmetic products that can support epidermal barrier function and have a positive effect on the skin microbiome.
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Affiliation(s)
- Brigitte Dreno
- Dermatology Department, INSERM, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1302/EMR6001, Nantes Université, Nantes, France
| | - Itaru Dekio
- Department of Dermatology, The Jikei University School of Medicine, Tokyo, Japan
| | - Hilary Baldwin
- Acne Treatment and Research Center, Morristown, New Jersey, USA
| | | | - Marie-Ange Dagnelie
- Dermatology Department, INSERM, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1302/EMR6001, Nantes Université, Nantes, France
| | - Amir Khammari
- Dermatology Department, INSERM, CNRS, Immunology and New Concepts in ImmunoTherapy, INCIT, UMR 1302/EMR6001, Nantes Université, Nantes, France
| | - Stephane Corvec
- CHU Nantes, Bacteriology Department, INCIT, UMR 1302, University Nantes, Nantes, France
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18
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P. Gomes PW, Mannochio-Russo H, Mao J, Zhao HN, Ancira J, Tipton CD, Dorrestein PC, Li M. Co-occurrence network analysis reveals the alterations of the skin microbiome and metabolome in adults with mild to moderate atopic dermatitis. mSystems 2024; 9:e0111923. [PMID: 38319107 PMCID: PMC10949451 DOI: 10.1128/msystems.01119-23] [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: 10/19/2023] [Accepted: 01/04/2024] [Indexed: 02/07/2024] Open
Abstract
Skin microbiome can be altered in patients with atopic dermatitis (AD). An understanding of the changes from healthy to atopic skin can help develop new targets for treatment by identifying microbial and molecular biomarkers. This study investigates the skin microbiome and metabolome of healthy adult subjects and lesion (ADL) and non-lesion (ADNL) of AD patients by 16S rRNA gene sequencing and mass spectrometry, respectively. Samples from AD patients showed alterations in the diversity and composition of the skin microbiome, with ADL skin having the greatest divergence. Staphylococcus species, especially S. aureus, were significantly increased in AD patients. Metabolomic profiles were also different between the groups. Dipeptide derivatives are more abundant in ADL, which may be related to skin inflammation. Co-occurrence network analysis of the microbiome and metabolomics data revealed higher co-occurrence of metabolites and bacteria in healthy ADNL compared to ADL. S. aureus co-occurred with dipeptide derivatives in ADL, while phytosphingosine-derived compounds showed co-occurrences with commensal bacteria, for example, Paracoccus sp., Pseudomonas sp., Prevotella bivia, Lactobacillus iners, Anaerococcus sp., Micrococcus sp., Corynebacterium ureicelerivorans, Corynebacterium massiliense, Streptococcus thermophilus, and Roseomonas mucosa, in healthy and ADNL groups. Therefore, these findings provide valuable insights into how AD affects the human skin metabolome and microbiome.IMPORTANCEThis study provides valuable insight into changes in the skin microbiome and associated metabolomic profiles in an adult population with mild to moderate atopic dermatitis. It also identifies new therapeutic targets that may be useful for developing personalized treatments for individuals with atopic dermatitis based on their unique skin microbiome and metabolic profiles.
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Affiliation(s)
- Paulo Wender P. Gomes
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California, USA
| | - Helena Mannochio-Russo
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California, USA
| | - Junhong Mao
- Colgate−Palmolive Company, Piscataway, New Jersey, USA
| | - Haoqi Nina Zhao
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California, USA
| | | | | | - Pieter C. Dorrestein
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California, USA
- Department of Pediatrics, University of California, San Diego, California, USA
| | - Min Li
- Colgate−Palmolive Company, Piscataway, New Jersey, USA
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19
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Yang Y, Huang J, Zeng A, Long X, Yu N, Wang X. The role of the skin microbiome in wound healing. BURNS & TRAUMA 2024; 12:tkad059. [PMID: 38444635 PMCID: PMC10914219 DOI: 10.1093/burnst/tkad059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 08/05/2023] [Accepted: 11/21/2023] [Indexed: 03/07/2024]
Abstract
The efficient management of skin wounds for rapid and scarless healing represents a major clinical unmet need. Nonhealing skin wounds and undesired scar formation impair quality of life and result in high healthcare expenditure worldwide. The skin-colonizing microbiota contributes to maintaining an intact skin barrier in homeostasis, but it also participates in the pathogenesis of many skin disorders, including aberrant wound healing, in many respects. This review focuses on the composition of the skin microbiome in cutaneous wounds of different types (i.e. acute and chronic) and with different outcomes (i.e. nonhealing and hypertrophic scarring), mainly based on next-generation sequencing analyses; furthermore, we discuss the mechanistic insights into host-microbe and microbe-microbe interactions during wound healing. Finally, we highlight potential therapeutic strategies that target the skin microbiome to improve healing outcomes.
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Affiliation(s)
- Yuyan Yang
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1, Shuaifuyuan, Dongcheng District, Beijing, 100005, China
| | - Jiuzuo Huang
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1, Shuaifuyuan, Dongcheng District, Beijing, 100005, China
| | - Ang Zeng
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1, Shuaifuyuan, Dongcheng District, Beijing, 100005, China
| | - Xiao Long
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1, Shuaifuyuan, Dongcheng District, Beijing, 100005, China
| | - Nanze Yu
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1, Shuaifuyuan, Dongcheng District, Beijing, 100005, China
| | - Xiaojun Wang
- Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1, Shuaifuyuan, Dongcheng District, Beijing, 100005, China
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20
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Cavallo A, Camera E, Bottillo G, Maiellaro M, Truglio M, Marini F, Chavagnac-Bonneville M, Fauger A, Perrier E, Pigliacelli F, Picardo M, Cristaudo A, Mariano M. Biosignatures of defective sebaceous gland activity in sebum-rich and sebum-poor skin areas in adult atopic dermatitis. Exp Dermatol 2024; 33:e15066. [PMID: 38532571 DOI: 10.1111/exd.15066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 03/07/2024] [Accepted: 03/14/2024] [Indexed: 03/28/2024]
Abstract
Atopic dermatitis (AD) is a composite disease presenting disruption of the skin permeability barrier (SPB) in the stratum corneum (SC). Recent evidence supports derangement of the sebaceous gland (SG) activity in the AD pathomechanisms. The objective of this study was to delineate profiles of both sebaceous and epidermal lipids and of aminoacids from SG-rich (SGR) and SG-poor (SGP) areas in AD. Both sebum and SC were sampled from SGR areas, while SC was sampled also from SGP areas in 54 adult patients with AD, consisting of 34 and 20 subjects, respectively with and without clinical involvement of face, and in 44 age and sex-matched controls. Skin biophysics were assessed in all sampling sites. Disruption of the SBP was found to be associated with dysregulated lipidome. Abundance of sapienate and lignocerate, representing, respectively, sebum and the SC type lipids, were decreased in sebum and SC from both SGR and SGP areas. Analogously, squalene was significantly diminished in AD, regardless the site. Extent of lipid derangement in SGR areas was correlated with the AD severity. The abundance of aminoacids in the SC from SGR areas was altered more than that determined in SGP areas. Several gender-related differences were found in both controls and AD subgroups. In conclusion, the SG activity was differently compromised in adult females and males with AD, in both SGR and SGP areas. In AD, alterations in the aminoacidome profiles were apparent in the SGR areas. Lipid signatures in association with aminoacidome and skin physical properties may serve the definition of phenotype clusters that associate with AD severity and gender.
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Affiliation(s)
- Alessia Cavallo
- Laboratory of Cutaneous Physiopathology, San Gallicano Dermatological Institute-IRCCS, Rome, Italy
| | - Emanuela Camera
- Laboratory of Cutaneous Physiopathology, San Gallicano Dermatological Institute-IRCCS, Rome, Italy
| | - Grazia Bottillo
- Laboratory of Cutaneous Physiopathology, San Gallicano Dermatological Institute-IRCCS, Rome, Italy
| | - Miriam Maiellaro
- Laboratory of Cutaneous Physiopathology, San Gallicano Dermatological Institute-IRCCS, Rome, Italy
| | - Mauro Truglio
- Laboratory of Cutaneous Physiopathology, San Gallicano Dermatological Institute-IRCCS, Rome, Italy
| | - Federico Marini
- Department of Chemistry, 'La Sapienza' University, Rome, Italy
| | - Marlène Chavagnac-Bonneville
- Research and Development Department, NAOS Ecobiology Company (Bioderma- Institute Esthederm - Etat Pur), Aix-en-Provence, France
| | - Aurélie Fauger
- Research and Development Department, NAOS Ecobiology Company (Bioderma- Institute Esthederm - Etat Pur), Aix-en-Provence, France
| | - Eric Perrier
- NAOS, Institute of Life Science, Aix-en-Provence, France
- Department of Dermatological Clinic and Research, San Gallicano Dermatological Institute-IRCCS, Rome, Italy
| | - Flavia Pigliacelli
- Department of Dermatological Clinic and Research, San Gallicano Dermatological Institute-IRCCS, Rome, Italy
| | - Mauro Picardo
- Laboratory of Cutaneous Physiopathology, San Gallicano Dermatological Institute-IRCCS, Rome, Italy
| | - Antonio Cristaudo
- Department of Dermatological Clinic and Research, San Gallicano Dermatological Institute-IRCCS, Rome, Italy
| | - Maria Mariano
- Department of Dermatological Clinic and Research, San Gallicano Dermatological Institute-IRCCS, Rome, Italy
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21
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Han JH, Kim HS. Skin Deep: The Potential of Microbiome Cosmetics. J Microbiol 2024; 62:181-199. [PMID: 38625646 DOI: 10.1007/s12275-024-00128-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/27/2024] [Accepted: 03/03/2024] [Indexed: 04/17/2024]
Abstract
The interplay between the skin microbiome and its host is a complex facet of dermatological health and has become a critical focus in the development of microbiome cosmetics. The skin microbiome, comprising various microorganisms, is essential from birth, develops over the lifespan, and performs vital roles in protecting our body against pathogens, training the immune system, and facilitating the breakdown of organic matter. Dysbiosis, an imbalance of these microorganisms, has been implicated in a number of skin conditions such as acne, atopic dermatitis, and skin cancer. Recent scientific findings have spurred cosmetic companies to develop products that preserve and enhance the skin's microbial diversity balance. These products may incorporate elements like prebiotics, probiotics, and postbiotics, which are beneficial for the skin microbiome. Beyond topical products, there's increasing interest in ingestible beauty supplements (i.e. oral probiotics), highlighting the connection between the gut and skin. This review examines the influence of the microbiome on skin health and the emerging trends of microbiome skincare products.
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Affiliation(s)
- Ju Hee Han
- Department of Dermatology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea
| | - Hei Sung Kim
- Department of Dermatology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea.
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22
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Cuthbertson L, Löber U, Ish-Horowicz JS, McBrien CN, Churchward C, Parker JC, Olanipekun MT, Burke C, McGowan A, Davies GA, Lewis KE, Hopkin JM, Chung KF, O'Carroll O, Faul J, Creaser-Thomas J, Andrews M, Ghosal R, Piatek S, Willis-Owen SAG, Bartolomaeus TUP, Birkner T, Dwyer S, Kumar N, Turek EM, William Musk A, Hui J, Hunter M, James A, Dumas ME, Filippi S, Cox MJ, Lawley TD, Forslund SK, Moffatt MF, Cookson WOC. Genomic attributes of airway commensal bacteria and mucosa. Commun Biol 2024; 7:171. [PMID: 38347162 PMCID: PMC10861553 DOI: 10.1038/s42003-024-05840-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 01/22/2024] [Indexed: 02/15/2024] Open
Abstract
Microbial communities at the airway mucosal barrier are conserved and highly ordered, in likelihood reflecting co-evolution with human host factors. Freed of selection to digest nutrients, the airway microbiome underpins cognate management of mucosal immunity and pathogen resistance. We show here the initial results of systematic culture and whole-genome sequencing of the thoracic airway bacteria, identifying 52 novel species amongst 126 organisms that constitute 75% of commensals typically present in heathy individuals. Clinically relevant genes encode antimicrobial synthesis, adhesion and biofilm formation, immune modulation, iron utilisation, nitrous oxide (NO) metabolism and sphingolipid signalling. Using whole-genome content we identify dysbiotic features that may influence asthma and chronic obstructive pulmonary disease. We match isolate gene content to transcripts and metabolites expressed late in airway epithelial differentiation, identifying pathways to sustain host interactions with microbiota. Our results provide a systematic basis for decrypting interactions between commensals, pathogens, and mucosa in lung diseases of global significance.
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Affiliation(s)
- Leah Cuthbertson
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Ulrike Löber
- Max Delbrück Center for Molecular Medicine (MDC), 13125, Berlin, Germany
- Experimental and Clinical Research Center, A Cooperation of Charité-Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Lindenberger Weg 80, 13125, Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site, 10785, Berlin, Germany
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117, Berlin, Germany
| | - Jonathan S Ish-Horowicz
- National Heart and Lung Institute, Imperial College London, London, UK
- Department of Mathematics, Imperial College London, London, UK
| | - Claire N McBrien
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Colin Churchward
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Jeremy C Parker
- National Heart and Lung Institute, Imperial College London, London, UK
| | | | - Conor Burke
- Department of Respiratory Medicine, Connolly Hospital, Dublin, Ireland
| | - Aisling McGowan
- Department of Respiratory Medicine, Connolly Hospital, Dublin, Ireland
| | - Gwyneth A Davies
- Population Data Science and Health Data Research UK BREATHE Hub, Swansea University Medical School, Swansea University, Swansea, UK
- College of Medicine, Institute of Life Science, Swansea University, Swansea, UK
| | - Keir E Lewis
- College of Medicine, Institute of Life Science, Swansea University, Swansea, UK
- Respiratory Medicine, Hywel Dda University Health Board, Llanelli, UK
| | - Julian M Hopkin
- College of Medicine, Institute of Life Science, Swansea University, Swansea, UK
| | - Kian Fan Chung
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Orla O'Carroll
- Department of Respiratory Medicine, Connolly Hospital, Dublin, Ireland
| | - John Faul
- Department of Respiratory Medicine, Connolly Hospital, Dublin, Ireland
| | - Joy Creaser-Thomas
- College of Medicine, Institute of Life Science, Swansea University, Swansea, UK
| | - Mark Andrews
- Respiratory Medicine, Hywel Dda University Health Board, Llanelli, UK
| | - Robin Ghosal
- Respiratory Medicine, Hywel Dda University Health Board, Llanelli, UK
| | - Stefan Piatek
- National Heart and Lung Institute, Imperial College London, London, UK
| | | | - Theda U P Bartolomaeus
- Max Delbrück Center for Molecular Medicine (MDC), 13125, Berlin, Germany
- Experimental and Clinical Research Center, A Cooperation of Charité-Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Lindenberger Weg 80, 13125, Berlin, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site, 10785, Berlin, Germany
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117, Berlin, Germany
| | - Till Birkner
- Max Delbrück Center for Molecular Medicine (MDC), 13125, Berlin, Germany
- Experimental and Clinical Research Center, A Cooperation of Charité-Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Lindenberger Weg 80, 13125, Berlin, Germany
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117, Berlin, Germany
| | - Sarah Dwyer
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Nitin Kumar
- Host-Microbiota Interactions Laboratory, Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - Elena M Turek
- National Heart and Lung Institute, Imperial College London, London, UK
| | - A William Musk
- School of Population and Global Health, The University of Western Australia, Perth, WA, Australia
- Busselton Population Medical Research Institute, Sir Charles Gairdner Hospital, Perth, WA, Australia
- Department of Respiratory Medicine Sir Charles Gairdner Hospital, Perth, WA, Australia
| | - Jennie Hui
- School of Population and Global Health, The University of Western Australia, Perth, WA, Australia
- Busselton Population Medical Research Institute, Sir Charles Gairdner Hospital, Perth, WA, Australia
| | - Michael Hunter
- School of Population and Global Health, The University of Western Australia, Perth, WA, Australia
- Busselton Population Medical Research Institute, Sir Charles Gairdner Hospital, Perth, WA, Australia
| | - Alan James
- School of Population and Global Health, The University of Western Australia, Perth, WA, Australia
- Department of Respiratory Medicine Sir Charles Gairdner Hospital, Perth, WA, Australia
- Department of Pulmonary Physiology and Sleep Medicine, Sir Charles Gairdner Hospital, Perth, WA, Australia
| | - Marc-Emmanuel Dumas
- National Heart and Lung Institute, Imperial College London, London, UK
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
- U1283 INSERM / UMR8199 CNRS, Institut Pasteur de Lille, Lille University Hospital, European Genomic Institute for Diabetes, University of Lille, Lille, France
- McGill Genome Centre, McGill University, Montréal, QC, Canada
| | - Sarah Filippi
- Department of Mathematics, Imperial College London, London, UK
| | - Michael J Cox
- University of Birmingham College of Medical and Dental Sciences, 150183, Institute of Microbiology and Infection, Birmingham, UK
| | - Trevor D Lawley
- Host-Microbiota Interactions Laboratory, Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - Sofia K Forslund
- Max Delbrück Center for Molecular Medicine (MDC), 13125, Berlin, Germany.
- Experimental and Clinical Research Center, A Cooperation of Charité-Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Lindenberger Weg 80, 13125, Berlin, Germany.
- DZHK (German Centre for Cardiovascular Research), Partner Site, 10785, Berlin, Germany.
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117, Berlin, Germany.
- Structural and Computational Biology Unit, European Molecular Biology Laboratory, Structural and Computational Biology Unit, 69117, Heidelberg, Germany.
| | - Miriam F Moffatt
- National Heart and Lung Institute, Imperial College London, London, UK.
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23
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Cavallo I, Sivori F, Mastrofrancesco A, Abril E, Pontone M, Di Domenico EG, Pimpinelli F. Bacterial Biofilm in Chronic Wounds and Possible Therapeutic Approaches. BIOLOGY 2024; 13:109. [PMID: 38392327 PMCID: PMC10886835 DOI: 10.3390/biology13020109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/02/2024] [Accepted: 02/06/2024] [Indexed: 02/24/2024]
Abstract
Wound repair and skin regeneration is a very complex orchestrated process that is generally composed of four phases: hemostasis, inflammation, proliferation, and remodeling. Each phase involves the activation of different cells and the production of various cytokines, chemokines, and other inflammatory mediators affecting the immune response. The microbial skin composition plays an important role in wound healing. Indeed, skin commensals are essential in the maintenance of the epidermal barrier function, regulation of the host immune response, and protection from invading pathogenic microorganisms. Chronic wounds are common and are considered a major public health problem due to their difficult-to-treat features and their frequent association with challenging chronic infections. These infections can be very tough to manage due to the ability of some bacteria to produce multicellular structures encapsulated into a matrix called biofilms. The bacterial species contained in the biofilm are often different, as is their capability to influence the healing of chronic wounds. Biofilms are, in fact, often tolerant and resistant to antibiotics and antiseptics, leading to the failure of treatment. For these reasons, biofilms impede appropriate treatment and, consequently, prolong the wound healing period. Hence, there is an urgent necessity to deepen the knowledge of the pathophysiology of delayed wound healing and to develop more effective therapeutic approaches able to restore tissue damage. This work covers the wound-healing process and the pathogenesis of chronic wounds infected by biofilm-forming pathogens. An overview of the strategies to counteract biofilm formation or to destroy existing biofilms is also provided.
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Affiliation(s)
- Ilaria Cavallo
- Microbiology and Virology Unit, San Gallicano Dermatological Institute IRCSS, 00144 Rome, Italy
| | - Francesca Sivori
- Microbiology and Virology Unit, San Gallicano Dermatological Institute IRCSS, 00144 Rome, Italy
| | - Arianna Mastrofrancesco
- Microbiology and Virology Unit, San Gallicano Dermatological Institute IRCSS, 00144 Rome, Italy
| | - Elva Abril
- Microbiology and Virology Unit, San Gallicano Dermatological Institute IRCSS, 00144 Rome, Italy
| | - Martina Pontone
- Microbiology and Virology Unit, San Gallicano Dermatological Institute IRCSS, 00144 Rome, Italy
| | - Enea Gino Di Domenico
- Department of Biology and Biotechnology "C. Darwin", Sapienza University of Rome, 00185 Rome, Italy
| | - Fulvia Pimpinelli
- Microbiology and Virology Unit, San Gallicano Dermatological Institute IRCSS, 00144 Rome, Italy
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24
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Cao Z, Pang Y, Pu J, Liu J. Bacteria-based drug delivery for treating non-oncological diseases. J Control Release 2024; 366:668-683. [PMID: 38219912 DOI: 10.1016/j.jconrel.2024.01.020] [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: 11/19/2023] [Revised: 01/03/2024] [Accepted: 01/11/2024] [Indexed: 01/16/2024]
Abstract
Bacteria inhabit all over the human body, especially the skin, gastrointestinal tract, respiratory tract, urogenital tract, as well as specific lesion sites, such as wound and tumor. By leveraging their distinctive attributes including rapid proliferation, inherent abilities to colonize various biointerfaces in vivo and produce diverse biomolecules, and the flexibility to be functionalized via genetic engineering or surface modification, bacteria have been widely developed as living therapeutic agents, showing promising potential to make a great impact on the exploration of advanced drug delivery systems. In this review, we present an overview of bacteria-based drug delivery and its applications in treating non-oncological diseases. We systematically summarize the physiological positions where living bacterial therapeutic agents can be delivered to, including the skin, gastrointestinal tract, respiratory tract, and female genital tract. We discuss the success of using bacteria-based drug delivery systems in the treatment of diseases that occur in specific locations, such as skin wound healing/infection, inflammatory bowel disease, respiratory diseases, and vaginitis. We also discuss the advantages as well as the limitations of these living therapeutics and bacteria-based drug delivery, highlighting the key points that need to be considered for further translation. This review article may provide unique insights for designing next-generation bacteria-based therapeutics and developing advanced drug delivery systems.
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Affiliation(s)
- Zhenping Cao
- Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Institute of Molecular Medicine, State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Yan Pang
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Department of Ophthalmology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Jun Pu
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.
| | - Jinyao Liu
- Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Institute of Molecular Medicine, State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.
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25
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Woo YR, Kim HS. Interaction between the microbiota and the skin barrier in aging skin: a comprehensive review. Front Physiol 2024; 15:1322205. [PMID: 38312314 PMCID: PMC10834687 DOI: 10.3389/fphys.2024.1322205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 01/03/2024] [Indexed: 02/06/2024] Open
Abstract
The interplay between the microbes and the skin barrier holds pivotal significance in skin health and aging. The skin and gut, both of which are critical immune and neuroendocrine system, harbor microbes that are kept in balance. Microbial shifts are seen with aging and may accelerate age-related skin changes. This comprehensive review investigates the intricate connection between microbe dynamics, skin barrier, and the aging process. The gut microbe plays essential roles in the human body, safeguarding the host, modulating metabolism, and shaping immunity. Aging can perturb the gut microbiome which in turn accentuates inflammaging by further promoting senescent cell accumulation and compromising the host's immune response. Skin microbiota diligently upholds the epidermal barrier, adeptly fending off pathogens. The aging skin encompasses alterations in the stratum corneum structure and lipid content, which negatively impact the skin's barrier function with decreased moisture retention and increased vulnerability to infection. Efficacious restoration of the skin barrier and dysbiosis with strategic integration of acidic cleansers, emollients with optimal lipid composition, antioxidants, and judicious photoprotection may be a proactive approach to aging. Furthermore, modulation of the gut-skin axis through probiotics, prebiotics, and postbiotics emerges as a promising avenue to enhance skin health as studies have substantiated their efficacy in enhancing hydration, reducing wrinkles, and fortifying barrier integrity. In summary, the intricate interplay between microbes and skin barrier function is intrinsically woven into the tapestry of aging. Sound understanding of these interactions, coupled with strategic interventions aimed at recalibrating the microbiota and barrier equilibrium, holds the potential to ameliorate skin aging. Further in-depth studies are necessary to better understand skin-aging and develop targeted strategies for successful aging.
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Affiliation(s)
- Yu Ri Woo
- Department of Dermatology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hei Sung Kim
- Department of Dermatology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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26
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Zhao L, Chen J, Bai B, Song G, Zhang J, Yu H, Huang S, Wang Z, Lu G. Topical drug delivery strategies for enhancing drug effectiveness by skin barriers, drug delivery systems and individualized dosing. Front Pharmacol 2024; 14:1333986. [PMID: 38293666 PMCID: PMC10825035 DOI: 10.3389/fphar.2023.1333986] [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: 11/06/2023] [Accepted: 12/27/2023] [Indexed: 02/01/2024] Open
Abstract
Topical drug delivery is widely used in various diseases because of the advantages of not passing through the gastrointestinal tract, avoiding gastrointestinal irritation and hepatic first-pass effect, and reaching the lesion directly to reduce unnecessary adverse reactions. The skin helps the organism to defend itself against a huge majority of external aggressions and is one of the most important lines of defense of the body. However, the skin's strong barrier ability is also a huge obstacle to the effectiveness of topical medications. Allowing the bioactive, composition in a drug to pass through the stratum corneum barrier as needed to reach the target site is the most essential need for the bioactive, composition to exert its therapeutic effect. The state of the skin barrier, the choice of delivery system for the bioactive, composition, and individualized disease detection and dosing planning influence the effectiveness of topical medications. Nowadays, enhancing transdermal absorption of topically applied drugs is the hottest research area. However, enhancing transdermal absorption of drugs is not the first choice to improve the effectiveness of all drugs. Excessive transdermal absorption enhances topical drug accumulation at non-target sites and the occurrence of adverse reactions. This paper introduces topical drug delivery strategies to improve drug effectiveness from three perspectives: skin barrier, drug delivery system and individualized drug delivery, describes the current status and shortcomings of topical drug research, and provides new directions and ideas for topical drug research.
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Affiliation(s)
- Lin Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jiamei Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Bai Bai
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Guili Song
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jingwen Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Han Yu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shiwei Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Zhang Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Guanghua Lu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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27
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Tao R, Li T, Wang Y, Wang R, Li R, Bianchi P, Duplan H, Zhang Y, Li H, Wang R. The facial microbiome and metabolome across different geographic regions. Microbiol Spectr 2024; 12:e0324823. [PMID: 38063390 PMCID: PMC10783011 DOI: 10.1128/spectrum.03248-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 11/09/2023] [Indexed: 01/13/2024] Open
Abstract
IMPORTANCE Characterization of the skin microbiome and metabolome across geography will help uncover the climate factors behind the prevalence of skin disorders and provide suggestions for skincare products for people living in different geographic regions.
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Affiliation(s)
- Rong Tao
- Department of Dermatology, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Department of Dermatology of Peking University First Hospital, National Clinical Research Center for Skin and Immune Diseases, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, NMPA Key Laboratory for Quality Control and Evaluation of Cosmetics, Beijing, China
| | - Tingting Li
- Department of Dermatology of Peking University First Hospital, National Clinical Research Center for Skin and Immune Diseases, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, NMPA Key Laboratory for Quality Control and Evaluation of Cosmetics, Beijing, China
| | - Yalin Wang
- Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Rong Wang
- Hexi University Affiliated Zhangye People’s Hospital, Zhangye, Gansu, China
| | - Ruoyu Li
- Department of Dermatology of Peking University First Hospital, National Clinical Research Center for Skin and Immune Diseases, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, NMPA Key Laboratory for Quality Control and Evaluation of Cosmetics, Beijing, China
| | - Pascale Bianchi
- Department of Research & Development, Pierre Fabre Dermo-Cosmetic & Personal Care, Boulogne-billancourt, France
| | - Hélène Duplan
- Department of Research & Development, Pierre Fabre Dermo-Cosmetic & Personal Care, Boulogne-billancourt, France
| | - Ying Zhang
- Medical Department, Pierre Fabre Dermo-Cosmetic, Shanghai, China
| | - Hang Li
- Department of Dermatology of Peking University First Hospital, National Clinical Research Center for Skin and Immune Diseases, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, NMPA Key Laboratory for Quality Control and Evaluation of Cosmetics, Beijing, China
| | - Ruojun Wang
- Department of Dermatology of Peking University First Hospital, National Clinical Research Center for Skin and Immune Diseases, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, NMPA Key Laboratory for Quality Control and Evaluation of Cosmetics, Beijing, China
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28
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Cheng L, Correia MSP, Higdon SM, Romero Garcia F, Tsiara I, Joffré E, Sjöling Å, Boulund F, Norin EL, Engstrand L, Globisch D, Du J. The protective role of commensal gut microbes and their metabolites against bacterial pathogens. Gut Microbes 2024; 16:2356275. [PMID: 38797999 PMCID: PMC11135852 DOI: 10.1080/19490976.2024.2356275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 05/13/2024] [Indexed: 05/29/2024] Open
Abstract
Multidrug-resistant microorganisms have become a major public health concern around the world. The gut microbiome is a gold mine for bioactive compounds that protect the human body from pathogens. We used a multi-omics approach that integrated whole-genome sequencing (WGS) of 74 commensal gut microbiome isolates with metabolome analysis to discover their metabolic interaction with Salmonella and other antibiotic-resistant pathogens. We evaluated differences in the functional potential of these selected isolates based on WGS annotation profiles. Furthermore, the top altered metabolites in co-culture supernatants of selected commensal gut microbiome isolates were identified including a series of dipeptides and examined for their ability to prevent the growth of various antibiotic-resistant bacteria. Our results provide compelling evidence that the gut microbiome produces metabolites, including the compound class of dipeptides that can potentially be applied for anti-infection medication, especially against antibiotic-resistant pathogens. Our established pipeline for the discovery and validation of bioactive metabolites from the gut microbiome as novel candidates for multidrug-resistant infections represents a new avenue for the discovery of antimicrobial lead structures.
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Affiliation(s)
- Liqin Cheng
- Centre for Translational Microbiome Research (CTMR), Department of Microbiology, Tumor and Cell Biology, Stockholm, Sweden
- The Department of Pathophysiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Mário S. P. Correia
- Department of Chemistry - BMC, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Shawn M. Higdon
- Centre for Translational Microbiome Research (CTMR), Department of Microbiology, Tumor and Cell Biology, Stockholm, Sweden
| | - Fabricio Romero Garcia
- Centre for Translational Microbiome Research (CTMR), Department of Microbiology, Tumor and Cell Biology, Stockholm, Sweden
| | - Ioanna Tsiara
- Department of Chemistry - BMC, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Enrique Joffré
- Centre for Translational Microbiome Research (CTMR), Department of Microbiology, Tumor and Cell Biology, Stockholm, Sweden
| | - Åsa Sjöling
- Centre for Translational Microbiome Research (CTMR), Department of Microbiology, Tumor and Cell Biology, Stockholm, Sweden
- Department of Chemistry and Molecular Biology, University of Gothenburg, Göteborg, Sweden
| | - Fredrik Boulund
- Centre for Translational Microbiome Research (CTMR), Department of Microbiology, Tumor and Cell Biology, Stockholm, Sweden
| | - Elisabeth Lissa Norin
- Centre for Translational Microbiome Research (CTMR), Department of Microbiology, Tumor and Cell Biology, Stockholm, Sweden
| | - Lars Engstrand
- Centre for Translational Microbiome Research (CTMR), Department of Microbiology, Tumor and Cell Biology, Stockholm, Sweden
- Science for Life Laboratory, Stockholm, Sweden
| | - Daniel Globisch
- Centre for Translational Microbiome Research (CTMR), Department of Microbiology, Tumor and Cell Biology, Stockholm, Sweden
- Department of Chemistry - BMC, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Juan Du
- Centre for Translational Microbiome Research (CTMR), Department of Microbiology, Tumor and Cell Biology, Stockholm, Sweden
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29
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Le Bras C, Rault L, Jacquet N, Daniel N, Chuat V, Valence F, Bellanger A, Bousarghin L, Blat S, Le Loir Y, Le Huërou-Luron I, Even S. Two human milk-like synthetic bacterial communities displayed contrasted impacts on barrier and immune responses in an intestinal quadricellular model. ISME COMMUNICATIONS 2024; 4:ycad019. [PMID: 38415201 PMCID: PMC10897888 DOI: 10.1093/ismeco/ycad019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 12/22/2023] [Accepted: 12/26/2023] [Indexed: 02/29/2024]
Abstract
The human milk (HM) microbiota, a highly diverse microbial ecosystem, is thought to contribute to the health benefits associated with breast-feeding, notably through its impact on infant gut microbiota. Our objective was to further explore the role of HM bacteria on gut homeostasis through a "disassembly/reassembly" strategy. HM strains covering the diversity of HM cultivable microbiota were first characterized individually and then assembled in synthetic bacterial communities (SynComs) using two human cellular models, peripheral blood mononuclear cells and a quadricellular model mimicking intestinal epithelium. Selected HM bacteria displayed a large range of immunomodulatory properties and had variable effects on epithelial barrier, allowing their classification in functional groups. This multispecies characterization of HM bacteria showed no clear association between taxonomy and HM bacteria impacts on epithelial immune and barrier functions, revealing the entirety and complexity of HM bacteria potential. More importantly, the assembly of HM strains into two SynComs of similar taxonomic composition but with strains exhibiting distinct individual properties, resulted in contrasting impacts on the epithelium. These impacts of SynComs partially diverged from the predicted ones based on individual bacteria. Overall, our results indicate that the functional properties of the HM bacterial community rather than the taxonomic composition itself could play a crucial role in intestinal homeostasis of infants.
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Affiliation(s)
- Charles Le Bras
- STLO, INRAE, Institut Agro, Rennes, 35042, France
- Institut NuMeCan, INRAE, INSERM, Univ Rennes, Rennes-Saint Gilles, 35590, France
| | - Lucie Rault
- STLO, INRAE, Institut Agro, Rennes, 35042, France
| | | | | | | | | | | | - Latifa Bousarghin
- Institut NuMeCan, INRAE, INSERM, Univ Rennes, Rennes-Saint Gilles, 35590, France
| | - Sophie Blat
- Institut NuMeCan, INRAE, INSERM, Univ Rennes, Rennes-Saint Gilles, 35590, France
| | - Yves Le Loir
- STLO, INRAE, Institut Agro, Rennes, 35042, France
| | | | - Sergine Even
- STLO, INRAE, Institut Agro, Rennes, 35042, France
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30
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Skaar EP. Biogeography of the genus Staphylococci on human skin. Proc Natl Acad Sci U S A 2023; 120:e2318509120. [PMID: 38019842 PMCID: PMC10722967 DOI: 10.1073/pnas.2318509120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023] Open
Affiliation(s)
- Eric P. Skaar
- Division of Molecular Pathogenesis, Department of Pathology, Microbiology, and Immunology, Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, TN37232
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31
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Khadka VD, Markey L, Boucher M, Lieberman TD. Commensal skin bacteria exacerbate inflammation and delay skin healing. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.04.569980. [PMID: 38106058 PMCID: PMC10723327 DOI: 10.1101/2023.12.04.569980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
The skin microbiome can both trigger beneficial immune stimulation and pose a potential infection threat. Previous studies have shown that colonization of mouse skin with the model human skin commensal Staphylococcus epidermidis is protective against subsequent excisional wound or pathogen challenge. However, less is known about concurrent skin damage and exposure to commensal microbes, despite growing interest in interventional probiotic therapy. Here, we address this open question by applying commensal skin bacteria at a high dose to abraded skin. While depletion of the skin microbiome via antibiotics delayed repair from damage, application of commensals-- including the mouse commensal Staphylococcus xylosus, three distinct isolates of S. epidermidis, and all other tested human skin commensals-- also significantly delayed barrier repair. Increased inflammation was observed within four hours of S. epidermidis exposure and persisted through day four, at which point the skin displayed a chronic-wound-like inflammatory state with increased neutrophil infiltration, increased fibroblast activity, and decreased monocyte differentiation. Transcriptomic analysis suggested that the prolonged upregulation of early canonical proliferative pathways inhibited the progression of barrier repair. These results highlight the nuanced role of members of the skin microbiome in modulating barrier integrity and indicate the need for caution in their development as probiotics.
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Affiliation(s)
- Veda D Khadka
- Institute for Medical Engineering and Sciences, Massachusetts Institute of Technology; Cambridge, MA, United States
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology; Cambridge, MA, United States
| | - Laura Markey
- Institute for Medical Engineering and Sciences, Massachusetts Institute of Technology; Cambridge, MA, United States
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology; Cambridge, MA, United States
| | - Magalie Boucher
- Division of Comparative Medicine, Massachusetts Institute of Technology; Cambridge, MA, United States
| | - Tami D Lieberman
- Institute for Medical Engineering and Sciences, Massachusetts Institute of Technology; Cambridge, MA, United States
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology; Cambridge, MA, United States
- Ragon Institute of Mass General, MIT and Harvard; Cambridge. MA, United States
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32
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Zhou Y, Xu X, Liu Y, Wang A, Luo Y, Liu X, Wang X, Li W, Yao X. Heterogeneous Regulation of StaphylococcusAureus by Different StaphylococcusEpidermidisagr Types in Atopic Dermatitis. J Invest Dermatol 2023; 143:2484-2493.e11. [PMID: 37271450 DOI: 10.1016/j.jid.2023.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 04/15/2023] [Accepted: 05/02/2023] [Indexed: 06/06/2023]
Abstract
The skin commensal Staphylococcus epidermidis exhibits a protective role in skin inflammation; however, the exact functions of S. epidermidis and their mechanisms in atopic dermatitis (AD) are not fully understood. Here, whole-genome sequencing was conducted on strains of S. epidermidis isolated from pediatric patients with AD and revealed significant strain-level heterogeneity in functional genes. Specific sequence analysis of S. epidermidis identified four types of accessory gene regulator (agr) according to locus variations in the agr operon, which was consistent with the metagenomic data of the contextual microbiota. The number of S. epidermidisagr type I was slightly decreased among AD isolates, whereas agr type IV was hardly detected in AD isolates. Functional experiments showed that strains of S. epidermidisagr types I and IV, but not types II and III, inhibited the expression of S. aureusagr-mediated virulence factors in vitro, suppressed S. aureus epidermal colonization, and attenuated skin inflammation in a mouse model. The delineation of genome signatures of S. epidermidis at the strain level in AD and the quorum-sensing interference between S. epidermidisagr type IV and S. aureus provide a foundation for the modulation of the skin microbiota and the treatment of AD.
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Affiliation(s)
- Yuan Zhou
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Xiaoqiang Xu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology, Shanghai, China
| | - Yang Liu
- 01 Life Institute, Shenzhen, China
| | - Ao Wang
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Yang Luo
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Xiaochun Liu
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Xiaokai Wang
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
| | - Wei Li
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai Institute of Dermatology, Shanghai, China
| | - Xu Yao
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China.
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33
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Hu X, Sun X, Zhao Y, Iv C, Sun X, Jin M, Zhang Q. GlcNac produced by the gut microbiome enhances host influenza resistance by modulating NK cells. Gut Microbes 2023; 15:2271620. [PMID: 37953509 PMCID: PMC10730189 DOI: 10.1080/19490976.2023.2271620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 10/12/2023] [Indexed: 11/14/2023] Open
Abstract
Microbiota are known to modulate the host response to influenza infection, but the mechanisms remain largely unknown. Gut metabolites are the key mediators through which gut microbes play anti-influenza effect. Transferring fecal metabolites from mice with high influenza resistance into antibiotic-treated recipient mice conferred resistance to influenza infections. By comparing the metabolites of different individuals with high or low influenza resistance, we identified and validated N-acetyl-D-glucosamine (GlcNAc) and adenosine showed strong positive correlations with influenza resistance and exerted anti-influenza effects in vivo or in vitro, respectively. Especially, GlcNAc mediated the anti-influenza effect by increasing the proportion and activity of NK cells. Several gut microbes, including Clostridium sp., Phocaeicola sartorii, and Akkermansia muciniphila, were positively correlated with influenza resistance, and can upregulate the level of GlcNAc in the mouse gut by exogenous supplementation. Subsequent studies confirmed that administering a combination of the three bacteria to mice via gavage resulted in similar modulation of NK cell responses as observed with GlcNAc. This study demonstrates that gut microbe-produced GlcNAc protects the host against influenza by regulating NK cells, facilitating the elucidation of the action mechanism of gut microbes mediating host influenza resistance.
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Affiliation(s)
- Xiaotong Hu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
| | - Xiaolu Sun
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
| | - Ya Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
| | - Changjie Iv
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
| | - Xiaomei Sun
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
| | - Meilin Jin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
- Emerging Disease Research Center, Keqian Institute of Biology, Keqian Biological Co. Ltd, Wuhan, China
| | - Qiang Zhang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Biomedicine and Health, Huazhong Agricultural University and Hubei jiangxia Laboratory, Wuhan, China
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34
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Ghori NUH, Mullally CA, Nicol MP, Currie A, Hibbert J, Payne MS, Patole S, Strunk T. Skin-Microbiome Assembly in Preterm Infants during the First Three Weeks of Life and Impact of Topical Coconut Oil Application. Int J Mol Sci 2023; 24:16626. [PMID: 38068949 PMCID: PMC10706365 DOI: 10.3390/ijms242316626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/18/2023] [Accepted: 11/18/2023] [Indexed: 12/18/2023] Open
Abstract
The structure and function of infant skin is not fully developed until 34 weeks of gestation, and this immaturity is associated with risk of late-onset sepsis (LOS). Topical coconut oil improves preterm-infant skin integrity and may reduce LOS. However, data on early-life skin-microbiome succession and potential effects of emollient skin care in preterm infants are scarce. We therefore collected skin-microbiome samples from the ear, axilla, and groin on days 1, 7, 14, and 21 from preterm infants born <30 weeks of gestation as part of a randomized clinical trial of standard skin care vs. topical coconut oil. We found that within-sample microbiome diversity was highest on day 1 after birth, with a subsequent decline and emergence of Staphylococcus genus dominance from day 7. Moreover, microbiome assembly was less diverse in infants receiving coconut oil vs. standard skin care. Our study provides novel data on preterm-infant skin-microbiome composition and highlights the modifying potential of emollient skin care.
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Affiliation(s)
- Noor-Ul-Huda Ghori
- Division of Infection and Immunity, School of Biomedical Sciences and The Marshall Centre, The University of Western Australia, Perth 6009, Australia (M.P.N.)
- Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, Perth 6009, Australia
| | - Christopher A. Mullally
- Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, Perth 6009, Australia
- Centre of Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth 6150, Australia
| | - Mark P. Nicol
- Division of Infection and Immunity, School of Biomedical Sciences and The Marshall Centre, The University of Western Australia, Perth 6009, Australia (M.P.N.)
| | - Andrew Currie
- Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, Perth 6009, Australia
- Centre of Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth 6150, Australia
| | - Julie Hibbert
- Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, Perth 6009, Australia
- Centre of Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth 6150, Australia
| | - Matthew S. Payne
- Division of Obstetrics and Gynecology, School of Medicine, The University of Western Australia, Perth 6009, Australia
| | - Sanjay Patole
- Neonatal Directorate, King Edward Memorial Hospital for Women, Child and Adolescent Health Service, Perth 6008, Australia
- Faculty of Health and Medical Sciences, The University of Western Australia, Perth 6009, Australia
| | - Tobias Strunk
- Wesfarmers Centre for Vaccines and Infectious Diseases, Telethon Kids Institute, Perth 6009, Australia
- Neonatal Directorate, King Edward Memorial Hospital for Women, Child and Adolescent Health Service, Perth 6008, Australia
- Faculty of Health and Medical Sciences, The University of Western Australia, Perth 6009, Australia
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35
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Joglekar P, Conlan S, Lee-Lin SQ, Deming C, Kashaf SS, Kong HH, Segre JA. Integrated genomic and functional analyses of human skin-associated Staphylococcus reveal extensive inter- and intra-species diversity. Proc Natl Acad Sci U S A 2023; 120:e2310585120. [PMID: 37956283 PMCID: PMC10666031 DOI: 10.1073/pnas.2310585120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 10/11/2023] [Indexed: 11/15/2023] Open
Abstract
Human skin is stably colonized by a distinct microbiota that functions together with epidermal cells to maintain a protective physical barrier. Staphylococcus, a prominent genus of the skin microbiota, participates in colonization resistance, tissue repair, and host immune regulation in strain-specific manners. To unlock the potential of engineering skin microbial communities, we aim to characterize the diversity of this genus within the context of the skin environment. We reanalyzed an extant 16S rRNA amplicon dataset obtained from distinct body sites of healthy volunteers, providing a detailed biogeographic depiction of staphylococcal species that colonize our skin. S. epidermidis, S. capitis, and S. hominis were the most abundant staphylococcal species present in all volunteers and were detected at all body sites. Pan-genome analysis of isolates from these three species revealed that the genus-core was dominated by central metabolism genes. Species-restricted-core genes encoded known host colonization functions. The majority (~68%) of genes were detected only in a fraction of isolate genomes, underscoring the immense strain-specific gene diversity. Conspecific genomes grouped into phylogenetic clades, exhibiting body site preference. Each clade was enriched for distinct gene sets that are potentially involved in site tropism. Finally, we conducted gene expression studies of select isolates showing variable growth phenotypes in skin-like medium. In vitro expression revealed extensive intra- and inter-species gene expression variation, substantially expanding the functional diversification within each species. Our study provides an important resource for future ecological and translational studies to examine the role of shared and strain-specific staphylococcal genes within the skin environment.
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Affiliation(s)
- Payal Joglekar
- Microbial Genomics Section, Translational and Functional Genomics Branch, National Human Genome Research Institute, NIH, Bethesda, MD20892
| | - Sean Conlan
- Microbial Genomics Section, Translational and Functional Genomics Branch, National Human Genome Research Institute, NIH, Bethesda, MD20892
| | - Shih-Queen Lee-Lin
- Microbial Genomics Section, Translational and Functional Genomics Branch, National Human Genome Research Institute, NIH, Bethesda, MD20892
| | - Clay Deming
- Microbial Genomics Section, Translational and Functional Genomics Branch, National Human Genome Research Institute, NIH, Bethesda, MD20892
| | - Sara Saheb Kashaf
- Microbial Genomics Section, Translational and Functional Genomics Branch, National Human Genome Research Institute, NIH, Bethesda, MD20892
| | | | - Heidi H. Kong
- Cutaneous Microbiome and Inflammation Section, National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH, Bethesda, MD20892
| | - Julia A. Segre
- Microbial Genomics Section, Translational and Functional Genomics Branch, National Human Genome Research Institute, NIH, Bethesda, MD20892
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36
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Seo JY, You SW, Gu KN, Kim H, Shin JG, Leem S, Hwang BK, Kim Y, Kang NG. Longitudinal study of the interplay between the skin barrier and facial microbiome over 1 year. Front Microbiol 2023; 14:1298632. [PMID: 38033568 PMCID: PMC10687563 DOI: 10.3389/fmicb.2023.1298632] [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: 09/22/2023] [Accepted: 10/30/2023] [Indexed: 12/02/2023] Open
Abstract
Skin is a diverse ecosystem that provides a habitat for microorganisms. The skin condition and the skin microbiome interact each other under diverse environmental conditions. This study was conducted on 10 study participants for a one-year, from September 2020 to August 2021, to investigate the variability of skin microbiome and skin biophysical parameters [TEWL, hydration, and elasticity (R5)] according to season, and to understand the interplay between skin microbiome and skin characteristics. We identified that Cutibacterium, Corynebacterium, Staphyloccocus, unclassified genus within Neisseriaceae, and Streptococcus were major skin microbial taxa at the genus level, and fluctuated with the seasons. Cutibacterium was more abundant in winter, while Corynebacterium, Staphylococcus, and Streptococcus were more abundant in summer. Notably, Cutibacterium and skin barrier parameter, TEWL, exhibited a co-decreasing pattern from winter to summer and showed a significant association between Cutibacterium and TEWL. Furthermore, functional profiling using KEGG provided clues on the impact of Cutibacterium on the host skin barrier. This study enhances our understanding of the skin microbiome and its interplay with skin characteristics and highlights the importance of seasonal dynamics in shaping skin microbial composition.
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37
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Szabó K, Bolla BS, Erdei L, Balogh F, Kemény L. Are the Cutaneous Microbiota a Guardian of the Skin's Physical Barrier? The Intricate Relationship between Skin Microbes and Barrier Integrity. Int J Mol Sci 2023; 24:15962. [PMID: 37958945 PMCID: PMC10647730 DOI: 10.3390/ijms242115962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/31/2023] [Accepted: 11/01/2023] [Indexed: 11/15/2023] Open
Abstract
The skin is a tightly regulated, balanced interface that maintains our integrity through a complex barrier comprising physical or mechanical, chemical, microbiological, and immunological components. The skin's microbiota affect various properties, one of which is the establishment and maintenance of the physical barrier. This is achieved by influencing multiple processes, including keratinocyte differentiation, stratum corneum formation, and regulation of intercellular contacts. In this review, we summarize the potential contribution of Cutibacterium acnes to these events and outline the contribution of bacterially induced barrier defects to the pathogenesis of acne vulgaris. With the combined effects of a Westernized lifestyle, microbial dysbiosis, epithelial barrier defects, and inflammation, the development of acne is very similar to that of several other multifactorial diseases of barrier organs (e.g., inflammatory bowel disease, celiac disease, asthma, atopic dermatitis, and chronic rhinosinusitis). Therefore, the management of acne requires a complex approach, which should be taken into account when designing novel treatments that address not only the inflammatory and microbial components but also the maintenance and strengthening of the cutaneous physical barrier.
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Affiliation(s)
- Kornélia Szabó
- HUN-REN-SZTE Dermatological Research Group, 6720 Szeged, Hungary
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, 6720 Szeged, Hungary; (B.S.B.)
- HCEMM-USZ Skin Research Group, 6720 Szeged, Hungary
| | - Beáta Szilvia Bolla
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, 6720 Szeged, Hungary; (B.S.B.)
- HCEMM-USZ Skin Research Group, 6720 Szeged, Hungary
| | - Lilla Erdei
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, 6720 Szeged, Hungary; (B.S.B.)
- HCEMM-USZ Skin Research Group, 6720 Szeged, Hungary
| | - Fanni Balogh
- HUN-REN-SZTE Dermatological Research Group, 6720 Szeged, Hungary
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, 6720 Szeged, Hungary; (B.S.B.)
| | - Lajos Kemény
- HUN-REN-SZTE Dermatological Research Group, 6720 Szeged, Hungary
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, 6720 Szeged, Hungary; (B.S.B.)
- HCEMM-USZ Skin Research Group, 6720 Szeged, Hungary
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38
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Dewi DAR, Perdiyana A, Wiliantari NM, Nadhira F, Arkania N, Salsabila CA, Allun CV, Allatib A, Dewantara K. Managing the Skin Microbiome as a New Bacteriotherapy for Inflammatory Atopic Dermatitis. Cureus 2023; 15:e48803. [PMID: 38024036 PMCID: PMC10645580 DOI: 10.7759/cureus.48803] [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] [Accepted: 11/14/2023] [Indexed: 12/01/2023] Open
Abstract
The microbiome, comprising various bacteria, assumes a significant role in the immune system's maturation and maintaining bodily homeostasis. Alterations in the microbial composition can contribute to the initiation and progression of inflammation. Recent studies reveal that changes in microbial composition and function, known as dysbiosis in the skin and gut, have been associated with altered immunological responses and skin barrier disruption. These changes are implicated in the development of several skin diseases, such as atopic dermatitis (AD). This review examines research demonstrating the potential of microbiome repair as a therapeutic approach to reduce the effect of inflammatory processes in the skin during atopic dermatitis. This way, corticosteroids in atopic dermatitis therapy can be reduced or even replaced with treatments focusing on controlling the skin microbiome. This study used scientific literature from recognized platforms, including PubMed, Scopus, Google Scholar, and ScienceDirect, covering publications from 2013 to 2023. The primary aim of this study was to assess the efficacy of skin microbiome management in treating atopic dermatitis. This study concludes that physicians must comprehensively understand the microbiome's involvement in atopic dermatitis, including its pathophysiological implications and its relevance to therapeutic interventions.
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Affiliation(s)
- Dian Andriani Ratna Dewi
- Department of Dermatovenereology, Faculty of Military Medicine, The Republic of Indonesia Defense University, Bogor, IDN
- Department of Dermatovenereology, Gatot Soebroto Central Army Hospital, Central Jakarta, IDN
| | - Angki Perdiyana
- Department of Dermatovenereology, Faculty of Military Medicine, The Republic of Indonesia Defense University, Bogor, IDN
| | - Ni M Wiliantari
- Department of Dermatovenereology, Ratna Dewi Principal Clinic, Bekasi, IDN
| | - Farrasila Nadhira
- Department of Dermatovenereology, Ratna Dewi Principal Clinic, Bekasi, IDN
| | - Nabila Arkania
- Department of Dermatovenereology, Faculty of Medicine, Public Health, and Nursing, Gadjah Mada University, Special Region of Yogyakarta, IDN
| | - Cut A Salsabila
- Department of Dermatovenereology, Faculty of Military Medicine, The Republic of Indonesia Defense University, Bogor, IDN
| | - Clara V Allun
- Department of Dermatovenereology, Faculty of Military Medicine, The Republic of Indonesia Defense University, Bogor, IDN
| | - Arohid Allatib
- Department of Dermatovenereology, Faculty of Military Medicine, The Republic of Indonesia Defense University, Bogor, IDN
| | - Kelvin Dewantara
- Department of Dermatovenereology, Faculty of Military Medicine, The Republic of Indonesia Defense University, Bogor, IDN
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39
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Yazici D, Ogulur I, Pat Y, Babayev H, Barletta E, Ardicli S, Bel Imam M, Huang M, Koch J, Li M, Maurer D, Radzikowska U, Satitsuksanoa P, Schneider SR, Sun N, Traidl S, Wallimann A, Wawrocki S, Zhakparov D, Fehr D, Ziadlou R, Mitamura Y, Brüggen MC, van de Veen W, Sokolowska M, Baerenfaller K, Nadeau K, Akdis M, Akdis CA. The epithelial barrier: The gateway to allergic, autoimmune, and metabolic diseases and chronic neuropsychiatric conditions. Semin Immunol 2023; 70:101846. [PMID: 37801907 DOI: 10.1016/j.smim.2023.101846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 09/27/2023] [Indexed: 10/08/2023]
Abstract
Since the 1960 s, our health has been compromised by exposure to over 350,000 newly introduced toxic substances, contributing to the current pandemic in allergic, autoimmune and metabolic diseases. The "Epithelial Barrier Theory" postulates that these diseases are exacerbated by persistent periepithelial inflammation (epithelitis) triggered by exposure to a wide range of epithelial barrier-damaging substances as well as genetic susceptibility. The epithelial barrier serves as the body's primary physical, chemical, and immunological barrier against external stimuli. A leaky epithelial barrier facilitates the translocation of the microbiome from the surface of the afflicted tissues to interepithelial and even deeper subepithelial locations. In turn, opportunistic bacterial colonization, microbiota dysbiosis, local inflammation and impaired tissue regeneration and remodelling follow. Migration of inflammatory cells to susceptible tissues contributes to damage and inflammation, initiating and aggravating many chronic inflammatory diseases. The objective of this review is to highlight and evaluate recent studies on epithelial physiology and its role in the pathogenesis of chronic diseases in light of the epithelial barrier theory.
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Affiliation(s)
- Duygu Yazici
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Ismail Ogulur
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Yagiz Pat
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Huseyn Babayev
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Elena Barletta
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland; Swiss Institute of Bioinformatics (SIB), Davos, Switzerland
| | - Sena Ardicli
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Manal Bel Imam
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Mengting Huang
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Jana Koch
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland; Swiss Institute of Bioinformatics (SIB), Davos, Switzerland
| | - Manru Li
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Debbie Maurer
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Urszula Radzikowska
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland; Christine Kühne-Center for Allergy Research and Education, Davos, Switzerland
| | | | - Stephan R Schneider
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Na Sun
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland; National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Stephan Traidl
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland; Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - Alexandra Wallimann
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Sebastian Wawrocki
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Damir Zhakparov
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Danielle Fehr
- Christine Kühne-Center for Allergy Research and Education, Davos, Switzerland; Faculty of Medicine, University of Zurich, Zurich, Switzerland; Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Reihane Ziadlou
- Christine Kühne-Center for Allergy Research and Education, Davos, Switzerland; Faculty of Medicine, University of Zurich, Zurich, Switzerland; Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Yasutaka Mitamura
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Marie-Charlotte Brüggen
- Christine Kühne-Center for Allergy Research and Education, Davos, Switzerland; Faculty of Medicine, University of Zurich, Zurich, Switzerland; Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Willem van de Veen
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland; Christine Kühne-Center for Allergy Research and Education, Davos, Switzerland
| | - Milena Sokolowska
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland; Christine Kühne-Center for Allergy Research and Education, Davos, Switzerland
| | - Katja Baerenfaller
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland; Swiss Institute of Bioinformatics (SIB), Davos, Switzerland
| | - Kari Nadeau
- Department of Environmental Health, T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - Mubeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland; Christine Kühne-Center for Allergy Research and Education, Davos, Switzerland.
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Cheung GYC, Otto M. Virulence Mechanisms of Staphylococcal Animal Pathogens. Int J Mol Sci 2023; 24:14587. [PMID: 37834035 PMCID: PMC10572719 DOI: 10.3390/ijms241914587] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/20/2023] [Accepted: 09/23/2023] [Indexed: 10/15/2023] Open
Abstract
Staphylococci are major causes of infections in mammals. Mammals are colonized by diverse staphylococcal species, often with moderate to strong host specificity, and colonization is a common source of infection. Staphylococcal infections of animals not only are of major importance for animal well-being but have considerable economic consequences, such as in the case of staphylococcal mastitis, which costs billions of dollars annually. Furthermore, pet animals can be temporary carriers of strains infectious to humans. Moreover, antimicrobial resistance is a great concern in livestock infections, as there is considerable antibiotic overuse, and resistant strains can be transferred to humans. With the number of working antibiotics continuously becoming smaller due to the concomitant spread of resistant strains, alternative approaches, such as anti-virulence, are increasingly being investigated to treat staphylococcal infections. For this, understanding the virulence mechanisms of animal staphylococcal pathogens is crucial. While many virulence factors have similar functions in humans as animals, there are increasingly frequent reports of host-specific virulence factors and mechanisms. Furthermore, we are only beginning to understand virulence mechanisms in animal-specific staphylococcal pathogens. This review gives an overview of animal infections caused by staphylococci and our knowledge about the virulence mechanisms involved.
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Affiliation(s)
| | - Michael Otto
- Pathogen Molecular Genetics Section, Laboratory of Bacteriology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 50 South Drive, Bethesda, MD 20814, USA;
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Williams MR, Bagood MD, Enroth TJ, Bunch ZL, Jiang N, Liu E, Almoughrabie S, Khalil S, Li F, Brinton S, Cech NB, Horswill AR, Gallo RL. Staphylococcus epidermidis activates keratinocyte cytokine expression and promotes skin inflammation through the production of phenol-soluble modulins. Cell Rep 2023; 42:113024. [PMID: 37610872 PMCID: PMC10586132 DOI: 10.1016/j.celrep.2023.113024] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 06/05/2023] [Accepted: 08/10/2023] [Indexed: 08/25/2023] Open
Abstract
Staphylococcus epidermidis is a common microbe on human skin and has beneficial functions in the skin microbiome. However, under conditions of allergic inflammation, the abundance of S. epidermidis increases, establishing potential danger to the epidermis. To understand how this commensal may injure the host, we investigate phenol-soluble modulin (PSM) peptides produced by S. epidermidis that are similar to peptides produced by Staphylococcus aureus. Synthetic S. epidermidis PSMs induce expression of host defense genes and are cytotoxic to human keratinocytes. Deletion mutants of S. epidermidis lacking these gene products support these observations and further show that PSMs require the action of the EcpA bacterial protease to induce inflammation when applied on mouse skin with an intact stratum corneum. The expression of PSMδ from S. epidermidis is also found to correlate with disease severity in patients with atopic dermatitis. These observations show how S. epidermidis PSMs can promote skin inflammation.
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Affiliation(s)
- Michael R Williams
- Department of Dermatology, University of California, San Diego, San Diego, CA 92093, USA
| | - Michelle D Bagood
- Department of Dermatology, University of California, San Diego, San Diego, CA 92093, USA
| | - Timothy J Enroth
- Department of Veterans Affairs Denver Health Care System, Denver, CO, USA; Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Zoie L Bunch
- Department of Chemistry and Biochemistry, University of North Carolina Greensboro, Greensboro, NC 27402, USA
| | - Nina Jiang
- Department of Dermatology, University of California, San Diego, San Diego, CA 92093, USA
| | - Edward Liu
- Department of Dermatology, University of California, San Diego, San Diego, CA 92093, USA
| | - Samia Almoughrabie
- Department of Dermatology, University of California, San Diego, San Diego, CA 92093, USA
| | - Shadi Khalil
- Department of Dermatology, University of California, San Diego, San Diego, CA 92093, USA
| | - Fengwu Li
- Department of Dermatology, University of California, San Diego, San Diego, CA 92093, USA
| | - Samantha Brinton
- Department of Dermatology, University of California, San Diego, San Diego, CA 92093, USA
| | - Nadja B Cech
- Department of Chemistry and Biochemistry, University of North Carolina Greensboro, Greensboro, NC 27402, USA
| | - Alexander R Horswill
- Department of Veterans Affairs Denver Health Care System, Denver, CO, USA; Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Richard L Gallo
- Department of Dermatology, University of California, San Diego, San Diego, CA 92093, USA.
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Wang DQ, Li X, Zhang RY, Yuan C, Yan B, Humbert P, Quan ZX. Effects of Investigational Moisturizers on the Skin Barrier and Microbiome following Exposure to Environmental Aggressors: A Randomized Clinical Trial and Ex Vivo Analysis. J Clin Med 2023; 12:6078. [PMID: 37763018 PMCID: PMC10532330 DOI: 10.3390/jcm12186078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/08/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
The skin microbiota barrier participates in skin barrier function in addition to the physical, chemical, and immunological protective barriers, and is affected by environmental aggressors and skincare regimens. To better understand the exact effects of real-life environmental conditions on the skin and determine the protective methods, this study investigates the effects of three topical cosmetic moisturizers (water gel moisturizers with/without yeast extract (Moisturizers K and C) and a thick-emulsion cream moisturizer (Moisturizer L)) on clinical and skin microbiome endpoints in the presence of environmental aggressors during an 8-week, randomized controlled, triple-blind clinical trial with 110 participants, and molecular- as well as biomarker-level endpoints on ex vivo skin explants after exposure to simulate urban environmental conditions. The results show that all moisturizers are well-tolerated and improve skin barrier function and surface moisture content from the baseline, and the improvement is maintained at the last analysis point (3 days after trial completion). Compared with the untreated control areas (samples taken from the upper chest), treatment with Moisturizer K prevented a reduction in bacterial and fungal richness, and increased the change ratio of the relative abundance of commensal bacteria, such as Staphylococcus epidermidis and Ralstonia, at the treated sites (samples taken from the forehead). Moreover, Moisturizer K-treated ex vivo skin explants had higher levels of caspase 14 (a marker of skin barrier function), collagen I, and elastin (structure components), and lower levels of aryl hydrocarbon receptor (AHR; activated by air pollutants) and interleukin-6 (IL-6) than those in explants treated with other moisturizers and in the untreated areas of the skin. These results suggest that a skin postbiotic moisturizer with yeast extract supports the regulation of the skin's microbiome balance and may provide a holistic barrier (involving skin microbiome, physical, chemical, and immune barriers) to protect the skin against environmental aggressors.
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Affiliation(s)
- Dan-Qi Wang
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Fudan Microbiome Center, Institute of Biodiversity Science, School of Life Sciences, Fudan University, Shanghai 200437, China; (D.-Q.W.); (R.-Y.Z.)
| | - Xi Li
- Translational Science Asia Pacific, Shanghai Technology and Research Center, Johnson & Johnson (China) Ltd., Shanghai 200245, China;
| | - Ru-Yi Zhang
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Fudan Microbiome Center, Institute of Biodiversity Science, School of Life Sciences, Fudan University, Shanghai 200437, China; (D.-Q.W.); (R.-Y.Z.)
| | - Chao Yuan
- Skin and Cosmetic Research Department, Shanghai Skin Disease Hospital, Shanghai 200443, China;
| | - Bo Yan
- Translational Science Asia Pacific, Shanghai Technology and Research Center, Johnson & Johnson (China) Ltd., Shanghai 200245, China;
| | - Philippe Humbert
- Department of Dermatology, Clinical Investigation Center, Besancon University Hospital, 25030 Besancon, France;
| | - Zhe-Xue Quan
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Fudan Microbiome Center, Institute of Biodiversity Science, School of Life Sciences, Fudan University, Shanghai 200437, China; (D.-Q.W.); (R.-Y.Z.)
- IRDR ICoE on Risk Interconnectivity and Governance on Weather/Climate Extremes Impact and Public Health, Fudan University, Shanghai 200437, China
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Hu X, Tang M, Dong K, Zhou J, Wang D, Song L. Changes in the skin microbiome during male maturation from 0 to 25 years of age. Skin Res Technol 2023; 29:e13432. [PMID: 37753696 PMCID: PMC10493343 DOI: 10.1111/srt.13432] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 07/22/2023] [Indexed: 09/28/2023]
Abstract
BACKGROUND Skin microorganisms co-develop with the human body and age influences the skin microenvironment and thus the skin bacterial community. OBJECTIVES To investigate the changes in the skin microbiota during male development. METHODS High-throughput 16S ribosomal RNA pyrosequencing was utilized to analyze the differences in bacterial composition of the skin in healthy males aged 0-25 years. RESULTS There were significant differences in facial skin bacterial diversity (Shannon index) and richness (Chao index) among the 4 groups of subjects (p < 0.05). Streptococcus, Staphylococcus, Cutibacterium are dominant in males during growth, and regular changes occur with age after birth. Further analysis of skin bacteria between the 4 groups showed that the bacterial abundance of Cutibacterium acnes and Staphylococcus epidermidis tended to increase with age, and the bacterial abundance of Streptococcus, Rothia mucilaginosa, and Staphylococcus hominis tended to decrease with age. CONCLUSIONS There are some changes in cheek skin bacterial diversity during male development, and there is a relationship between skin bacterial changes and skin development processes.
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Affiliation(s)
- Xinyue Hu
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials EngineeringBeijing Technology and Business UniversityBeijingChina
- Key Laboratory of Cosmetic of China National Light Industry, College of Chemistry and Materials EngineeringBeijing Technology and Business UniversityBeijingChina
| | - Meng Tang
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials EngineeringBeijing Technology and Business UniversityBeijingChina
- Key Laboratory of Cosmetic of China National Light Industry, College of Chemistry and Materials EngineeringBeijing Technology and Business UniversityBeijingChina
| | - Kun Dong
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials EngineeringBeijing Technology and Business UniversityBeijingChina
- Key Laboratory of Cosmetic of China National Light Industry, College of Chemistry and Materials EngineeringBeijing Technology and Business UniversityBeijingChina
| | - Jin Zhou
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials EngineeringBeijing Technology and Business UniversityBeijingChina
- Key Laboratory of Cosmetic of China National Light Industry, College of Chemistry and Materials EngineeringBeijing Technology and Business UniversityBeijingChina
| | - Dexian Wang
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials EngineeringBeijing Technology and Business UniversityBeijingChina
- Key Laboratory of Cosmetic of China National Light Industry, College of Chemistry and Materials EngineeringBeijing Technology and Business UniversityBeijingChina
| | - Liya Song
- Beijing Key Laboratory of Plant Resources Research and Development, College of Chemistry and Materials EngineeringBeijing Technology and Business UniversityBeijingChina
- Key Laboratory of Cosmetic of China National Light Industry, College of Chemistry and Materials EngineeringBeijing Technology and Business UniversityBeijingChina
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Masuda-Kuroki K, Alimohammadi S, Di Nardo A. S. epidermidis Rescues Allergic Contact Dermatitis in Sphingosine 1-Phosphate Receptor 2-Deficient Skin. Int J Mol Sci 2023; 24:13190. [PMID: 37685997 PMCID: PMC10487941 DOI: 10.3390/ijms241713190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/19/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
Recent studies have identified a subtype of the S1P-receptor family called sphingosine-1-phosphate receptor 2 (S1PR2), which plays a crucial role in maintaining the skin barrier. It has been observed that S1PR2 and Staphylococcus epidermidis (S. epidermidis) work together to regulate the skin barrier. However, the interaction between these two factors is still unclear. To investigate this, a study was conducted on healthy skin and allergic contact dermatitis (ACD) using 3,4-Dibutoxy-3-cyclobutene-1,2-dione (SADBE) on the ears of S1pr2fl/fl and S1pr2fl/flK14-Cre mice and using 1 × 106 CFU of S. epidermidis to examine its effects on the skin. The results showed that in S. epidermidis-conditioned ACD, the ear thickness of S1pr2fl/flK14-Cre mice was lower than that of S1pr2fl/fl mice, and mRNA expressions of Il-1β and Cxcl2 of S1pr2fl/flK14-Cre mice were lower than that of S1pr2fl/fl mice in ACD with S. epidermidis. Furthermore, the gene expression of Claudin-1 and Occludin in S1pr2fl/flK14-Cre mice was higher than that of S1pr2fl/fl mice in ACD with S. epidermidis. The study concludes that S. epidermidis colonization improves the skin barrier and prevents ACD even when S1P signaling malfunctions.
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Affiliation(s)
| | | | - Anna Di Nardo
- Department of Dermatology, School of Medicine, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA; (K.M.-K.); (S.A.)
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Almoughrabie S, Cau L, Cavagnero K, O’Neill AM, Li F, Roso-Mares A, Mainzer C, Closs B, Kolar MJ, Williams KJ, Bensinger SJ, Gallo RL. Commensal Cutibacterium acnes induce epidermal lipid synthesis important for skin barrier function. SCIENCE ADVANCES 2023; 9:eadg6262. [PMID: 37595033 PMCID: PMC10438445 DOI: 10.1126/sciadv.adg6262] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 07/20/2023] [Indexed: 08/20/2023]
Abstract
Lipid synthesis is necessary for formation of epithelial barriers and homeostasis with external microbes. An analysis of the response of human keratinocytes to several different commensal bacteria on the skin revealed that Cutibacterium acnes induced a large increase in essential lipids including triglycerides, ceramides, cholesterol, and free fatty acids. A similar response occurred in mouse epidermis and in human skin affected with acne. Further analysis showed that this increase in lipids was mediated by short-chain fatty acids produced by Cutibacterium acnes and was dependent on increased expression of several lipid synthesis genes including glycerol-3-phosphate-acyltransferase-3. Inhibition or RNA silencing of peroxisome proliferator-activated receptor-α (PPARα), but not PPARβ and PPARγ, blocked this response. The increase in keratinocyte lipid content improved innate barrier functions including antimicrobial activity, paracellular diffusion, and transepidermal water loss. These results reveal that metabolites from a common commensal bacterium have a previously unappreciated influence on the composition of epidermal lipids.
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Affiliation(s)
- Samia Almoughrabie
- Department of Dermatology, University of California San Diego, La Jolla CA, USA
- SILAB, Brive, France
| | | | - Kellen Cavagnero
- Department of Dermatology, University of California San Diego, La Jolla CA, USA
| | - Alan M. O’Neill
- Department of Dermatology, University of California San Diego, La Jolla CA, USA
| | - Fengwu Li
- Department of Dermatology, University of California San Diego, La Jolla CA, USA
| | - Andrea Roso-Mares
- Department of Dermatology, University of California San Diego, La Jolla CA, USA
| | | | | | - Matthew J. Kolar
- Department of Dermatology, University of California San Diego, La Jolla CA, USA
| | - Kevin J. Williams
- Department of Biological Chemistry, UCLA, Los Angeles, CA, USA
- UCLA Lipidomics Lab, UCLA, Los Angeles, CA, USA
| | - Steven J. Bensinger
- UCLA Lipidomics Lab, UCLA, Los Angeles, CA, USA
- Department of Microbiology, Immunology, and Molecular Genetics, UCLA, Los Angeles, CA, USA
- Department of Molecular and Medical Pharmacology, UCLA, Los Angeles, CA, USA
| | - Richard L. Gallo
- Department of Dermatology, University of California San Diego, La Jolla CA, USA
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Deng T, Zheng H, Zhu Y, Liu M, He G, Li Y, Liu Y, Wu J, Cheng H. Emerging Trends and Focus in Human Skin Microbiome Over the Last Decade: A Bibliometric Analysis and Literature Review. Clin Cosmet Investig Dermatol 2023; 16:2153-2173. [PMID: 37583484 PMCID: PMC10424697 DOI: 10.2147/ccid.s420386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 07/29/2023] [Indexed: 08/17/2023]
Abstract
Background Human skin microbiome is the first barrier against exogenous attack and is associated with various skin disease pathogenesis and progression. Advancements in high-throughput sequencing technologies have paved the way for a deeper understanding of this field. Based on the bibliometric analysis, this investigation aimed to identify the hotspots and future research trends associated with human skin microbiomes studied over the past decade. Methods The published research on skin microbiome from January 2013 to January 2023 was retrieved from the Web of Science Core Collection. Data cleaning processes to ensure robust data and the bibliometrix packages R, CiteSpace, VOSviewer, Origin, and Scimago Graphica for bibliometric and visual analyses were utilized. Results A total of 1629 published documents were analyzed. The overall publication trend steadily increased, with relatively fast growth in 2017 and 2020. The United States of America has the highest number of publications and citations and shows close collaborations with China and Germany. The University of California, San Diego, indicated a higher number of publications than other institutions and the fastest growth rate. The top three most publishing journals on this topic are Microorganisms, Frontiers in Microbiology, and Experimental dermatology. Gallo RL is the most influential author with the highest h- and g-index and most publications in skin microecology, followed by Grice EA and Kong HH. The top 10 most frequently used keywords in recent years included skin microbiome, microbiome, staphylococcus aureus, diversity, atopic dermatitis, skin, bacteria, infections, gut microbiota, and disease. Conclusion The skin microbiome is an area of research that requires continuous analysis, and even with much-achieved progress, future research will further be aided as technology develops.
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Affiliation(s)
- Tinghan Deng
- Department of Dermatology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, 610075, People’s Republic of China
| | - Huilan Zheng
- Department of Dermatology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, 610075, People’s Republic of China
| | - Ying Zhu
- Department of Gynecology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, 610075, People’s Republic of China
| | - Ming Liu
- Department of Medical Oncology/Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan Province, 610041, People’s Republic of China
| | - Guanjin He
- Department of Dermatology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, 610075, People’s Republic of China
| | - Ya Li
- Department of Dermatology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, 610075, People’s Republic of China
| | - Yichen Liu
- Department of Dermatology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, 610075, People’s Republic of China
| | - Jingping Wu
- Department of Medical Cosmetology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, 610075, People’s Republic of China
| | - Hongbin Cheng
- Department of Dermatology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan Province, 610075, People’s Republic of China
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Nicholas-Haizelden K, Murphy B, Hoptroff M, Horsburgh MJ. Bioprospecting the Skin Microbiome: Advances in Therapeutics and Personal Care Products. Microorganisms 2023; 11:1899. [PMID: 37630459 PMCID: PMC10456854 DOI: 10.3390/microorganisms11081899] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/20/2023] [Accepted: 07/25/2023] [Indexed: 08/27/2023] Open
Abstract
Bioprospecting is the discovery and exploration of biological diversity found within organisms, genetic elements or produced compounds with prospective commercial or therapeutic applications. The human skin is an ecological niche which harbours a rich and compositional diversity microbiome stemming from the multifactorial interactions between the host and microbiota facilitated by exploitable effector compounds. Advances in the understanding of microbial colonisation mechanisms alongside species and strain interactions have revealed a novel chemical and biological understanding which displays applicative potential. Studies elucidating the organismal interfaces and concomitant understanding of the central processes of skin biology have begun to unravel a potential wealth of molecules which can exploited for their proposed functions. A variety of skin-microbiome-derived compounds display prospective therapeutic applications, ranging from antioncogenic agents relevant in skin cancer therapy to treatment strategies for antimicrobial-resistant bacterial and fungal infections. Considerable opportunities have emerged for the translation to personal care products, such as topical agents to mitigate various skin conditions such as acne and eczema. Adjacent compound developments have focused on cosmetic applications such as reducing skin ageing and its associated changes to skin properties and the microbiome. The skin microbiome contains a wealth of prospective compounds with therapeutic and commercial applications; however, considerable work is required for the translation of in vitro findings to relevant in vivo models to ensure translatability.
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Affiliation(s)
- Keir Nicholas-Haizelden
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L69 3BX, UK;
| | - Barry Murphy
- Unilever Research & Development, Port Sunlight, Wirral CH63 3JW, UK; (B.M.); (M.H.)
| | - Michael Hoptroff
- Unilever Research & Development, Port Sunlight, Wirral CH63 3JW, UK; (B.M.); (M.H.)
| | - Malcolm J. Horsburgh
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L69 3BX, UK;
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Joglekar P, Conlan S, Lee-Lin SQ, Deming C, Kashaf SS, Kong HH, Segre JA. Integrated genomic and functional analyses of human skin-associated Staphylococcus reveals extensive inter- and intra-species diversity. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.06.22.546190. [PMID: 37503282 PMCID: PMC10370188 DOI: 10.1101/2023.06.22.546190] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Human skin is stably colonized by a distinct microbiota that functions together with epidermal cells to maintain a protective physical barrier. Staphylococcus, a prominent genus of the skin microbiota, participates in colonization resistance, tissue repair, and host immune regulation in strain specific manners. To unlock the potential of engineering skin microbial communities, we aim to fully characterize the functional diversity of this genus within the context of the skin environment. We conducted metagenome and pan-genome analyses of isolates obtained from distinct body sites of healthy volunteers, providing a detailed biogeographic depiction of staphylococcal species that colonize our skin. S. epidermidis, S. capitis, and S. hominis were the most abundant species present in all volunteers and were detected at all body sites. Pan-genome analysis of these three species revealed that the genus-core was dominated by central metabolism genes. Species-specific core genes were enriched in host colonization functions. The majority (~68%) of genes were detected only in a fraction of isolate genomes, underscoring the immense strain-specific gene diversity. Conspecific genomes grouped into phylogenetic clades, exhibiting body site preference. Each clade was enriched for distinct gene-sets that are potentially involved in site tropism. Finally, we conducted gene expression studies of select isolates showing variable growth phenotypes in skin-like medium. In vitro expression revealed extensive intra- and inter-species gene expression variation, substantially expanding the functional diversification within each species. Our study provides an important resource for future ecological and translational studies to examine the role of shared and strain-specific staphylococcal genes within the skin environment.
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Affiliation(s)
- Payal Joglekar
- Microbial Genomics Section, Translational and Functional Genomics Branch, NHGRI, NIH, Bethesda, Maryland, USA
| | - Sean Conlan
- Microbial Genomics Section, Translational and Functional Genomics Branch, NHGRI, NIH, Bethesda, Maryland, USA
| | - Shih-Queen Lee-Lin
- Microbial Genomics Section, Translational and Functional Genomics Branch, NHGRI, NIH, Bethesda, Maryland, USA
| | - Clay Deming
- Microbial Genomics Section, Translational and Functional Genomics Branch, NHGRI, NIH, Bethesda, Maryland, USA
| | - Sara Saheb Kashaf
- Microbial Genomics Section, Translational and Functional Genomics Branch, NHGRI, NIH, Bethesda, Maryland, USA
| | | | - Heidi H. Kong
- Cutaneous Microbiome and Inflammation Section, NIAMS, NIH, Bethesda, Maryland, USA
| | - Julia A. Segre
- Microbial Genomics Section, Translational and Functional Genomics Branch, NHGRI, NIH, Bethesda, Maryland, USA
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49
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Zhu Y, Yu X, Cheng G. Human skin bacterial microbiota homeostasis: A delicate balance between health and disease. MLIFE 2023; 2:107-120. [PMID: 38817619 PMCID: PMC10989898 DOI: 10.1002/mlf2.12064] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/30/2023] [Accepted: 04/15/2023] [Indexed: 06/01/2024]
Abstract
As the largest organ of the body, the skin acts as a barrier to prevent diseases and harbors a variety of beneficial bacteria. Furthermore, the skin bacterial microbiota plays a vital role in health and disease. Disruption of the barrier or an imbalance between symbionts and pathogens can lead to skin disorders or even systemic diseases. In this review, we first provide an overview of research on skin bacterial microbiota and human health, including the composition of skin bacteria in a healthy state, as well as skin bacterial microbiota educating the immune system and preventing the invasion of pathogens. We then discuss the diseases that result from skin microbial dysbiosis, including atopic dermatitis, common acne, chronic wounds, psoriasis, viral transmission, cutaneous lupus, cutaneous lymphoma, and hidradenitis suppurativa. Finally, we highlight the progress that utilizes skin microorganisms for disease therapeutics, such as bacteriotherapy and skin microbiome transplantation. A deeper knowledge of the interaction between human health and disease and the homeostasis of the skin bacterial microbiota will lead to new insights and strategies for exploiting skin bacteria as a novel therapeutic target.
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Affiliation(s)
- Yibin Zhu
- Tsinghua University‐Peking University Joint Center for Life Sciences, School of MedicineTsinghua UniversityBeijingChina
- Shenzhen Bay LaboratoryInstitute of Infectious DiseasesShenzhenChina
| | - Xi Yu
- Tsinghua University‐Peking University Joint Center for Life Sciences, School of MedicineTsinghua UniversityBeijingChina
- Shenzhen Bay LaboratoryInstitute of Infectious DiseasesShenzhenChina
| | - Gong Cheng
- Tsinghua University‐Peking University Joint Center for Life Sciences, School of MedicineTsinghua UniversityBeijingChina
- Shenzhen Bay LaboratoryInstitute of Infectious DiseasesShenzhenChina
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50
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Meyer TA, Swindell WR, Chaudhuri RK. Acetyl Zingerone: A Photostable Multifunctional Skincare Ingredient That Combats Features of Intrinsic and Extrinsic Skin Aging. Antioxidants (Basel) 2023; 12:1168. [PMID: 37371898 DOI: 10.3390/antiox12061168] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 05/26/2023] [Accepted: 05/26/2023] [Indexed: 06/29/2023] Open
Abstract
The cumulative damage skin sustains from exposure to environmental stressors throughout life exerts significant effects on skin aging and cancer development. One of the main ways by which environmental stressors mediate their effects within skin is through induction of reactive oxygen species (ROS). In this review, we chronicle the multiple properties by which acetyl zingerone (AZ) as a skincare ingredient can benefit skin (1) by helping manage overproduction of ROS through multiple routes as an antioxidant, physical quencher and selective chelator, (2) by fortifying protection after UV exposure ends to prevent the type of epidermal DNA damage that correlates with development of skin cancer, (3) by modulating matrisome activity and nurturing the integrity of the extracellular matrix (ECM) within the dermis and (4) through its proficient ability to neutralize singlet oxygen, by stabilizing the ascorbic acid precursor tetrahexyldecyl ascorbate (THDC) in the dermal microenvironment. This activity improves THDC bioavailability and may blunt pro-inflammatory effects of THDC, such as activation of type I interferon signaling. Moreover, AZ is photostable and can sustain its properties during UV exposure, in contrast to α-tocopherol. All these properties of AZ translate into measurable clinical benefits to improve the visual appearance of photoaged facial skin and to strengthen the skin's own defenses against sun damage.
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Affiliation(s)
| | - William R Swindell
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
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