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Lousada MB, Edelkamp J, Lachnit T, Fehrholz M, Pastar I, Jimenez F, Erdmann H, Bosch TCG, Paus R. Spatial Distribution and Functional Impact of Human Scalp Hair Follicle Microbiota. J Invest Dermatol 2024; 144:1353-1367.e15. [PMID: 38070726 DOI: 10.1016/j.jid.2023.11.006] [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: 02/23/2023] [Revised: 10/17/2023] [Accepted: 11/01/2023] [Indexed: 02/26/2024]
Abstract
Human hair follicles (HFs) constitute a unique microbiota habitat that differs substantially from the skin surface. Traditional HF sampling methods fail to eliminate skin microbiota contaminants or assess the HF microbiota incompletely, and microbiota functions in human HF physiology remain ill explored. Therefore, we used laser-capture microdissection, metagenomic shotgun sequencing, and FISH to characterize the human scalp HF microbiota in defined anatomical compartments. This revealed significant compartment-, tissue lineage-, and donor age-dependent variations in microbiota composition. Greatest abundance variations between HF compartments were observed for viruses, archaea, Staphylococcus epidermidis, Cutibacterium acnes, and Malassezia restricta, with the latter 2 being the most abundant viable HF colonizers (as tested by propidium monoazide assay) and, surprisingly, most abundant in the HF mesenchyme. Transfection of organ-cultured human scalp HFs with S. epidermidis-specific lytic bacteriophages ex vivo downregulated transcription of genes known to regulate HF growth and development, metabolism, and melanogenesis, suggesting that selected microbial products may modulate HF functions. Indeed, HF treatment with butyrate, a metabolite of S. epidermidis and other HF microbiota, delayed catagen and promoted autophagy, mitochondrial activity, and gp100 and dermcidin expression ex vivo. Thus, human HF microbiota show spatial variations in abundance and modulate the physiology of their host, which invites therapeutic targeting.
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Affiliation(s)
- Marta B Lousada
- Monasterium Laboratory, Münster, Germany; Zoological Institute, Christian Albrechts University in Kiel, Kiel, Germany
| | | | - Tim Lachnit
- Zoological Institute, Christian Albrechts University in Kiel, Kiel, Germany
| | | | - Irena Pastar
- Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Francisco Jimenez
- Mediteknia Skin & Hair Lab, Las Palmas de Gran Canaria, Spain; Ciencias de la Salud, Universidad Fernando Pessoa Canarias, Las Palmas de Gran Canaria, Spain
| | | | - Thomas C G Bosch
- Zoological Institute, Christian Albrechts University in Kiel, Kiel, Germany
| | - Ralf Paus
- Monasterium Laboratory, Münster, Germany; Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA; CUTANEON, Hamburg, Germany.
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Silini AR, Ramuta TŽ, Pires AS, Banerjee A, Dubus M, Gindraux F, Kerdjoudj H, Maciulatis J, Weidinger A, Wolbank S, Eissner G, Giebel B, Pozzobon M, Parolini O, Kreft ME. Methods and criteria for validating the multimodal functions of perinatal derivatives when used in oncological and antimicrobial applications. Front Bioeng Biotechnol 2022; 10:958669. [PMID: 36312547 PMCID: PMC9607958 DOI: 10.3389/fbioe.2022.958669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 09/26/2022] [Indexed: 11/18/2022] Open
Abstract
Perinatal derivatives or PnDs refer to tissues, cells and secretomes from perinatal, or birth-associated tissues. In the past 2 decades PnDs have been highly investigated for their multimodal mechanisms of action that have been exploited in various disease settings, including in different cancers and infections. Indeed, there is growing evidence that PnDs possess anticancer and antimicrobial activities, but an urgent issue that needs to be addressed is the reproducible evaluation of efficacy, both in vitro and in vivo. Herein we present the most commonly used functional assays for the assessment of antitumor and antimicrobial properties of PnDs, and we discuss their advantages and disadvantages in assessing the functionality. This review is part of a quadrinomial series on functional assays for the validation of PnDs spanning biological functions such as immunomodulation, anticancer and antimicrobial, wound healing, and regeneration.
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Affiliation(s)
- Antonietta R. Silini
- Centro di Ricerca E. Menni, Fondazione Poliambulanza Istituto Ospedaliero, Brescia, Italy
| | - Taja Železnik Ramuta
- Faculty of Medicine, Institute of Cell Biology, University of Ljubljana, Ljubljana, Slovenia
| | - Ana Salomé Pires
- Faculty of Medicine, Coimbra Institute for Clinical and Biomedical Research (iCBR) Area of Environment, Genetics and Oncobiology (CIMAGO), Institute of Biophysics, University of Coimbra, Coimbra, Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), Coimbra, Portugal
| | - Asmita Banerjee
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Marie Dubus
- Université de Reims Champagne Ardenne, EA 4691 Biomatériaux et Inflammation en Site Osseux (BIOS), Reims, France
| | - Florelle Gindraux
- Service de Chirurgie Orthopédique, Traumatologique et Plastique, CHU Besançon and Laboratoire de Nanomédecine, Imagerie, Thérapeutique EA 4662, Université Bourgogne Franche-Comté, Besançon, France
| | - Halima Kerdjoudj
- Université de Reims Champagne Ardenne, EA 4691 Biomatériaux et Inflammation en Site Osseux (BIOS), Reims, France
| | - Justinas Maciulatis
- The Institute of Physiology and Pharmacology, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Adelheid Weidinger
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Susanne Wolbank
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Günther Eissner
- Systems Biology Ireland, UCD School of Medicine, University College Dublin, Dublin, Ireland
| | - Bernd Giebel
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Michela Pozzobon
- Stem Cells and Regenerative Medicine Lab, Department of Women’s and Children’s Health, University of Padova, Fondazione Istituto di Ricerca Pediatrica Città Della Speranza, Padoa, Italy
| | - Ornella Parolini
- Department of Life Science and Public Health, Università Cattolica Del Sacro Cuore, Rome, Italy
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, Rome, Italy
| | - Mateja Erdani Kreft
- Faculty of Medicine, Institute of Cell Biology, University of Ljubljana, Ljubljana, Slovenia
- *Correspondence: Mateja Erdani Kreft,
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Dubus M, Varin J, Papa S, Chevrier J, Quilès F, Francius G, Audonnet S, Mauprivez C, Gangloff S, Siboni R, Ohl X, Reffuveille F, Kerdjoudj H. Bone marrow mesenchymal stem cells offer an immune-privileged niche to Cutibacterium acnes in case of implant-associated osteomyelitis. Acta Biomater 2022; 137:305-315. [PMID: 34678484 DOI: 10.1016/j.actbio.2021.10.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 09/23/2021] [Accepted: 10/15/2021] [Indexed: 12/20/2022]
Abstract
Considered as some of the most devastating complications, Cutibacterium acnes (C. acnes)-related osteomyelitis are among the hardest infections to diagnose and treat. Mesenchymal stem cells (MSCs) secrete number of immunomodulatory and antimicrobial soluble factors, making them an attractive treatment for bacterial infection. In this study, we examined MSCs/C. acnes interaction and analyzed the subsequent MSCs and bacteria's behaviors. Human bone marrow-derived MSCs were infected by C. acnes clinical strain harvested from non-infected bone site. Following 3 h of interaction, around 4% of bacteria were found in the intracellular compartment. Infected MSCs increased the secretion of prostaglandin E2 and indolamine 2,3 dioxygenase immunomodulatory mediators. Viable intracellular bacteria analyzed by infrared spectroscopy and atomic force microscopy revealed deep modifications in the wall features. In comparison with unchallenged bacteria, the viable intracellular bacteria showed (i) an increase in biofilm formation on orthopaedical-based materials, (ii) an increase in the invasiveness of osteoblasts and (iii) persistence in macrophage, suggesting the acquisition of virulence factors. Overall, these results showed a direct impact of C. acnes on bone marrow-derived MSCs, suggesting that blocking the C. acnes/MSCs interactions may represent an important new approach to manage chronic osteomyelitis infections. STATEMENT OF SIGNIFICANCE: The interaction of bone commensal C. acnes with bone marrow mesenchymal stem cells induces modifications in C. acnes wall characteristics. These bacteria increased (i) the biofilm formation on orthopaedical-based materials, (ii) the invasiveness of bone forming cells and (iii) the resistance to macrophage clearance through the modification of the wall nano-features and/or the increase in catalase production.
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Marrazzo P, Pizzuti V, Zia S, Sargenti A, Gazzola D, Roda B, Bonsi L, Alviano F. Microfluidic Tools for Enhanced Characterization of Therapeutic Stem Cells and Prediction of Their Potential Antimicrobial Secretome. Antibiotics (Basel) 2021; 10:750. [PMID: 34206190 PMCID: PMC8300685 DOI: 10.3390/antibiotics10070750] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/11/2021] [Accepted: 06/18/2021] [Indexed: 02/06/2023] Open
Abstract
Antibiotic resistance is creating enormous attention on the development of new antibiotic-free therapy strategies for bacterial diseases. Mesenchymal stromal stem cells (MSCs) are the most promising candidates in current clinical trials and included in several cell-therapy protocols. Together with the well-known immunomodulatory and regenerative potential of the MSC secretome, these cells have shown direct and indirect anti-bacterial effects. However, the low reproducibility and standardization of MSCs from different sources are the current limitations prior to the purification of cell-free secreted antimicrobial peptides and exosomes. In order to improve MSC characterization, novel label-free functional tests, evaluating the biophysical properties of the cells, will be advantageous for their cell profiling, population sorting, and quality control. We discuss the potential of emerging microfluidic technologies providing new insights into density, shape, and size of live cells, starting from heterogeneous or 3D cultured samples. The prospective application of these technologies to studying MSC populations may contribute to developing new biopharmaceutical strategies with a view to naturally overcoming bacterial defense mechanisms.
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Affiliation(s)
- Pasquale Marrazzo
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy; (V.P.); (L.B.); (F.A.)
| | - Valeria Pizzuti
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy; (V.P.); (L.B.); (F.A.)
| | - Silvia Zia
- Stem Sel S.r.l., 40127 Bologna, Italy; (S.Z.); (B.R.)
| | | | - Daniele Gazzola
- Cell Dynamics i.S.r.l., 40129 Bologna, Italy; (A.S.); (D.G.)
| | - Barbara Roda
- Stem Sel S.r.l., 40127 Bologna, Italy; (S.Z.); (B.R.)
- Department of Chemistry “G. Ciamician”, University of Bologna, 40126 Bologna, Italy
| | - Laura Bonsi
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy; (V.P.); (L.B.); (F.A.)
| | - Francesco Alviano
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy; (V.P.); (L.B.); (F.A.)
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