1
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van den Brink NJM, Pardow F, Meesters LD, van Vlijmen-Willems I, Rodijk-Olthuis D, Niehues H, Jansen PAM, Roelofs SH, Brewer MG, van den Bogaard EH, Smits JPH. Electrical Impedance Spectroscopy Quantifies Skin Barrier Function in Organotypic In Vitro Epidermis Models. J Invest Dermatol 2024:S0022-202X(24)00293-8. [PMID: 38642800 DOI: 10.1016/j.jid.2024.03.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 02/16/2024] [Accepted: 03/02/2024] [Indexed: 04/22/2024]
Abstract
3 D human epidermal equivalents (HEEs) are a state-of-the-art organotypic culture model in pre-clinical investigative dermatology and regulatory toxicology. Here, we investigated the utility of electrical impedance spectroscopy (EIS) for non-invasive measurement of HEE epidermal barrier function. Our setup comprised a custom-made lid fit with 12 electrode pairs aligned on the standard 24-transwell cell culture system. Serial EIS measurements for seven consecutive days did not impact epidermal morphology and readouts showed comparable trends to HEEs measured only once. We determined two frequency ranges in the resulting impedance spectra: a lower frequency range termed EISdiff correlated with keratinocyte terminal differentiation independent of epidermal thickness and a higher frequency range termed EISSC correlated with stratum corneum thickness. HEEs generated from CRISPR/Cas9 engineered keratinocytes that lack key differentiation genes FLG, TFAP2A, AHR or CLDN1 confirmed that keratinocyte terminal differentiation is the major parameter defining EISdiff. Exposure to pro-inflammatory psoriasis- or atopic dermatitis-associated cytokine cocktails lowered the expression of keratinocyte differentiation markers and reduced EISdiff. This cytokine-associated decrease in EISdiff was normalized after stimulation with therapeutic molecules. In conclusion, EIS provides a non-invasive system to consecutively and quantitatively assess HEE barrier function and to sensitively and objectively measure barrier development, defects and repair.
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Affiliation(s)
| | - F Pardow
- Department of Dermatology, Radboudumc, Nijmegen, The Netherlands; Department of Molecular Developmental Biology, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - L D Meesters
- Department of Dermatology, Radboudumc, Nijmegen, The Netherlands; Department of Molecular Developmental Biology, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | | | - D Rodijk-Olthuis
- Department of Dermatology, Radboudumc, Nijmegen, The Netherlands
| | - H Niehues
- Department of Dermatology, Radboudumc, Nijmegen, The Netherlands
| | - P A M Jansen
- Department of Dermatology, Radboudumc, Nijmegen, The Netherlands
| | | | - M G Brewer
- Department of Dermatology, University of Rochester Medical Center, Rochester, New York, USA
| | | | - J P H Smits
- Department of Dermatology, Radboudumc, Nijmegen, The Netherlands; Department of Dermatology, Heinrich Heine University, University Hospital Düsseldorf , Düsseldorf, Germany
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2
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van den Brink NJM, Pardow F, Meesters LD, van Vlijmen-Willems I, Rodijk-Olthuis D, Niehues H, Jansen PAM, Roelofs SH, Brewer MG, van den Bogaard EH, Smits JPH. Electrical Impedance Spectroscopy Quantifies Skin Barrier Function in Organotypic In Vitro Epidermis Models. bioRxiv 2024:2024.03.18.585587. [PMID: 38562885 PMCID: PMC10983962 DOI: 10.1101/2024.03.18.585587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
3 D human epidermal equivalents (HEEs) are a state-of-the-art organotypic culture model in pre-clinical investigative dermatology and regulatory toxicology. Here, we investigated the utility of electrical impedance spectroscopy (EIS) for non-invasive measurement of HEE epidermal barrier function. Our setup comprised a custom-made lid fit with 12 electrode pairs aligned on the standard 24-transwell cell culture system. Serial EIS measurements for seven consecutive days did not impact epidermal morphology and readouts showed comparable trends to HEEs measured only once. We determined two frequency ranges in the resulting impedance spectra: a lower frequency range termed EISdiff correlated with keratinocyte terminal differentiation independent of epidermal thickness and a higher frequency range termed EISSC correlated with stratum corneum thickness. HEEs generated from CRISPR/Cas9 engineered keratinocytes that lack key differentiation genes FLG, TFAP2A, AHR or CLDN1 confirmed that keratinocyte terminal differentiation is the major parameter defining EISdiff. Exposure to pro-inflammatory psoriasis- or atopic dermatitis-associated cytokine cocktails lowered the expression of keratinocyte differentiation markers and reduced EISdiff. This cytokine-associated decrease in EISdiff was normalized after stimulation with therapeutic molecules. In conclusion, EIS provides a non-invasive system to consecutively and quantitatively assess HEE barrier function and to sensitively and objectively measure barrier development, defects and repair.
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Affiliation(s)
| | - F Pardow
- Department of Dermatology, Radboudumc, Nijmegen, The Netherlands
- Department of Molecular Developmental Biology, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - L D Meesters
- Department of Dermatology, Radboudumc, Nijmegen, The Netherlands
- Department of Molecular Developmental Biology, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | | | - D Rodijk-Olthuis
- Department of Dermatology, Radboudumc, Nijmegen, The Netherlands
| | - H Niehues
- Department of Dermatology, Radboudumc, Nijmegen, The Netherlands
| | - P A M Jansen
- Department of Dermatology, Radboudumc, Nijmegen, The Netherlands
| | | | - M G Brewer
- Department of Dermatology, University of Rochester Medical Center, Rochester, New York, USA
| | | | - J P H Smits
- Department of Dermatology, Radboudumc, Nijmegen, The Netherlands
- Department of Dermatology, Heinrich Heine University, University Hospital Düsseldorf , Düsseldorf, Germany
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3
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Rikken G, Meesters LD, Jansen PAM, Rodijk-Olthuis D, van Vlijmen-Willems IMJJ, Niehues H, Smits JPH, Oláh P, Homey B, Schalkwijk J, Zeeuwen PLJM, van den Bogaard EH. Novel methodologies for host-microbe interactions and microbiome-targeted therapeutics in 3D organotypic skin models. Microbiome 2023; 11:227. [PMID: 37849006 PMCID: PMC10580606 DOI: 10.1186/s40168-023-01668-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 09/08/2023] [Indexed: 10/19/2023]
Abstract
BACKGROUND Following descriptive studies on skin microbiota in health and disease, mechanistic studies on the interplay between skin and microbes are on the rise, for which experimental models are in great demand. Here, we present a novel methodology for microbial colonization of organotypic skin and analysis thereof. RESULTS An inoculation device ensured a standardized application area on the stratum corneum and a homogenous distribution of bacteria, while preventing infection of the basolateral culture medium even during prolonged culture periods for up to 2 weeks at a specific culture temperature and humidity. Hereby, host-microbe interactions and antibiotic interventions could be studied, revealing diverse host responses to various skin-related bacteria and pathogens. CONCLUSIONS Our methodology is easily transferable to a wide variety of organotypic skin or mucosal models and different microbes at every cell culture facility at low costs. We envision that this study will kick-start skin microbiome studies using human organotypic skin cultures, providing a powerful alternative to experimental animal models in pre-clinical research. Video Abstract.
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Affiliation(s)
- Gijs Rikken
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Luca D Meesters
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Patrick A M Jansen
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Diana Rodijk-Olthuis
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Nijmegen, The Netherlands
| | | | - Hanna Niehues
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Jos P H Smits
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Nijmegen, The Netherlands
- Department of Dermatology, University Hospital Düsseldorf, Medical Faculty, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Peter Oláh
- Department of Dermatology, University Hospital Düsseldorf, Medical Faculty, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Bernhard Homey
- Department of Dermatology, University Hospital Düsseldorf, Medical Faculty, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Joost Schalkwijk
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Patrick L J M Zeeuwen
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Ellen H van den Bogaard
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Nijmegen, The Netherlands.
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4
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de Vries LE, Jansen PAM, Barcelo C, Munro J, Verhoef JMJ, Pasaje CFA, Rubiano K, Striepen J, Abla N, Berning L, Bolscher JM, Demarta-Gatsi C, Henderson RWM, Huijs T, Koolen KMJ, Tumwebaze PK, Yeo T, Aguiar ACC, Angulo-Barturen I, Churchyard A, Baum J, Fernández BC, Fuchs A, Gamo FJ, Guido RVC, Jiménez-Diaz MB, Pereira DB, Rochford R, Roesch C, Sanz LM, Trevitt G, Witkowski B, Wittlin S, Cooper RA, Rosenthal PJ, Sauerwein RW, Schalkwijk J, Hermkens PHH, Bonnert RV, Campo B, Fidock DA, Llinás M, Niles JC, Kooij TWA, Dechering KJ. Preclinical characterization and target validation of the antimalarial pantothenamide MMV693183. Nat Commun 2022; 13:2158. [PMID: 35444200 PMCID: PMC9021288 DOI: 10.1038/s41467-022-29688-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 03/09/2022] [Indexed: 12/14/2022] Open
Abstract
Drug resistance and a dire lack of transmission-blocking antimalarials hamper malaria elimination. Here, we present the pantothenamide MMV693183 as a first-in-class acetyl-CoA synthetase (AcAS) inhibitor to enter preclinical development. Our studies demonstrate attractive drug-like properties and in vivo efficacy in a humanized mouse model of Plasmodium falciparum infection. The compound shows single digit nanomolar in vitro activity against P. falciparum and P. vivax clinical isolates, and potently blocks P. falciparum transmission to Anopheles mosquitoes. Genetic and biochemical studies identify AcAS as the target of the MMV693183-derived antimetabolite, CoA-MMV693183. Pharmacokinetic-pharmacodynamic modelling predict that a single 30 mg oral dose is sufficient to cure a malaria infection in humans. Toxicology studies in rats indicate a > 30-fold safety margin in relation to the predicted human efficacious exposure. In conclusion, MMV693183 represents a promising candidate for further (pre)clinical development with a novel mode of action for treatment of malaria and blocking transmission. Here, de Vries et al. perform a pre-clinical characterization of the antimalarial compound MMV693183: the compound targets acetyl-CoA synthetase, has efficacy in humanized mice against Plasmodium falciparum infection, blocks transmission to mosquito vectors, is safe in rats, and pharmacokinetic-pharmacodynamic modeling informs about a potential oral human dosing regimen.
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Affiliation(s)
- Laura E de Vries
- Department of Medical Microbiology, Radboudumc Center for Infectious Diseases, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands.,Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Patrick A M Jansen
- Department of Dermatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Justin Munro
- Department of Chemistry and Huck Center for Malaria Research, The Pennsylvania State University, University Park, PA, USA
| | - Julie M J Verhoef
- Department of Medical Microbiology, Radboudumc Center for Infectious Diseases, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Kelly Rubiano
- Department of Microbiology & Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Josefine Striepen
- Department of Microbiology & Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Nada Abla
- Medicines for Malaria Venture, Geneva, Switzerland
| | - Luuk Berning
- TropIQ Health Sciences, Nijmegen, The Netherlands
| | | | | | | | - Tonnie Huijs
- TropIQ Health Sciences, Nijmegen, The Netherlands
| | | | | | - Tomas Yeo
- Department of Microbiology & Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Anna C C Aguiar
- Sao Carlos Institute of Physics, University of São Paulo, São Carlos, São Paulo, Brazil, São Carlos, SP, Brazil
| | | | - Alisje Churchyard
- Department of Life Sciences, Imperial College London, South Kensington, London, United Kingdom
| | - Jake Baum
- Department of Life Sciences, Imperial College London, South Kensington, London, United Kingdom
| | | | - Aline Fuchs
- Medicines for Malaria Venture, Geneva, Switzerland
| | | | - Rafael V C Guido
- Sao Carlos Institute of Physics, University of São Paulo, São Carlos, São Paulo, Brazil, São Carlos, SP, Brazil
| | | | - Dhelio B Pereira
- Research Center for Tropical Medicine of Rondonia, Porto Velho, Brazil
| | - Rosemary Rochford
- Department of Immunology and Microbiology, University of Colorado Anschutz School of Medicine, Aurora, CO, USA
| | - Camille Roesch
- Malaria Molecular Epidemiology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia.,Malaria Translational Research Unit, Institut Pasteur, Paris & Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Laura M Sanz
- Global Health, GlaxoSmithKline, Tres Cantos, Madrid, Spain
| | | | - Benoit Witkowski
- Malaria Molecular Epidemiology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia.,Malaria Translational Research Unit, Institut Pasteur, Paris & Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Sergio Wittlin
- Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Roland A Cooper
- Department of Natural Sciences and Mathematics, Dominican University of California, San Rafael, CA, USA
| | - Philip J Rosenthal
- Department of Medicine, University of California, San Francisco, CA, USA
| | - Robert W Sauerwein
- Department of Medical Microbiology, Radboudumc Center for Infectious Diseases, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands.,TropIQ Health Sciences, Nijmegen, The Netherlands
| | - Joost Schalkwijk
- Department of Dermatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | | | - Brice Campo
- Medicines for Malaria Venture, Geneva, Switzerland
| | - David A Fidock
- Department of Microbiology & Immunology, Columbia University Irving Medical Center, New York, NY, USA.,Center for Malaria Therapeutics and Antimicrobial Resistance, Division of Infectious Diseases, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA
| | - Manuel Llinás
- Department of Chemistry and Huck Center for Malaria Research, The Pennsylvania State University, University Park, PA, USA.,Department of Biochemistry & Molecular Biology, The Pennsylvania State University, University Park, PA, USA
| | - Jacquin C Niles
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Taco W A Kooij
- Department of Medical Microbiology, Radboudumc Center for Infectious Diseases, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands.
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5
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Niehues H, van der Krieken DA, Ederveen THA, Jansen PAM, van Niftrik L, Mesman R, Netea MG, Smits JPH, Schalkwijk J, van den Bogaard EH, Zeeuwen PLJM. Antimicrobial late cornified envelope (LCE) proteins: the psoriasis risk factor LCE3B/C-del affects microbiota composition. J Invest Dermatol 2021; 142:1947-1955.e6. [PMID: 34942199 DOI: 10.1016/j.jid.2021.11.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 11/03/2021] [Accepted: 11/22/2021] [Indexed: 12/20/2022]
Abstract
Late cornified envelope (LCE) proteins are predominantly expressed in the skin and other cornified epithelia. Based on sequence similarity, this eighteen-member homologous gene family has been subdivided into six groups. The LCE3 proteins have been the focus of dermatological research, as the combined deletion of LCE3B and LCE3C genes (LCE3B/C-del) is a risk factor for psoriasis. We previously reported that LCE3B/C-del increases expression of the LCE3A gene and that LCE3 proteins exert antibacterial activity. In the current study we analyzed the antimicrobial properties of other family members and the role of LCE3B/C-del in modulation of microbiota composition of the skin and oral cavity. Differences in killing efficiency and specificity between the LCE proteins and their target microbes were found, and the amino acid content, rather than the order, of the well-conserved central domain of the LCE3A protein was found responsible for its antibacterial activity. In vivo, LCE3B/C-del correlated with a higher beta-diversity in the skin and oral microbiota. From these results we conclude that all LCE proteins possess antimicrobial activity. Tissue-specific and genotype-dependent antimicrobial protein profiles impact skin and oral microbiota composition, which could direct towards LCE3B/C-del associated dysbiosis and a possible role for microbiota in the pathophysiology of psoriasis.
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Affiliation(s)
- Hanna Niehues
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Danique A van der Krieken
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Thomas H A Ederveen
- Center for Molecular and Biomolecular Informatics, RIMLS, Radboudumc, Nijmegen, The Netherlands
| | - Patrick A M Jansen
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Laura van Niftrik
- Department of Microbiology, Institute for Water and Wetland Research, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - Rob Mesman
- Department of Microbiology, Institute for Water and Wetland Research, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - Mihai G Netea
- Department of Internal Medicine, RIMLS, Radboudumc, Nijmegen, The Netherlands; Department of Immunology and Metabolism, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - Jos P H Smits
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Joost Schalkwijk
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Ellen H van den Bogaard
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Patrick L J M Zeeuwen
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands.
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6
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Schalkwijk J, Allman EL, Jansen PAM, de Vries LE, Verhoef JMJ, Jackowski S, Botman PNM, Beuckens-Schortinghuis CA, Koolen KMJ, Bolscher JM, Vos MW, Miller K, Reeves SA, Pett H, Trevitt G, Wittlin S, Scheurer C, Sax S, Fischli C, Angulo-Barturen I, Jiménez-Diaz MB, Josling G, Kooij TWA, Bonnert R, Campo B, Blaauw RH, Rutjes FPJT, Sauerwein RW, Llinás M, Hermkens PHH, Dechering KJ. Antimalarial pantothenamide metabolites target acetyl-coenzyme A biosynthesis in Plasmodium falciparum. Sci Transl Med 2020; 11:11/510/eaas9917. [PMID: 31534021 DOI: 10.1126/scitranslmed.aas9917] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 09/07/2018] [Accepted: 03/28/2019] [Indexed: 01/09/2023]
Abstract
Malaria eradication is critically dependent on new therapeutics that target resistant Plasmodium parasites and block transmission of the disease. Here, we report that pantothenamide bioisosteres were active against blood-stage Plasmodium falciparum parasites and also blocked transmission of sexual stages to the mosquito vector. These compounds were resistant to degradation by serum pantetheinases, showed favorable pharmacokinetic properties, and cleared parasites in a humanized mouse model of P. falciparum infection. Metabolomics revealed that coenzyme A biosynthetic enzymes converted pantothenamides into coenzyme A analogs that interfered with parasite acetyl-coenzyme A anabolism. Resistant parasites generated in vitro showed mutations in acetyl-coenzyme A synthetase and acyl-coenzyme A synthetase 11. Introduction and reversion of these mutations in P. falciparum using CRISPR-Cas9 gene editing confirmed the roles of these enzymes in the sensitivity of the malaria parasites to pantothenamides. These pantothenamide compounds with a new mode of action may have potential as drugs against malaria parasites.
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Affiliation(s)
- Joost Schalkwijk
- Department of Dermatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands.
| | - Erik L Allman
- Department of Biochemistry and Molecular Biology and Huck Center for Malaria Research, The Pennsylvania State University, University Park, PA 16802 USA
| | - Patrick A M Jansen
- Department of Dermatology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Laura E de Vries
- Department of Medical Microbiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Julie M J Verhoef
- Department of Medical Microbiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | | | | | | | | | | | | | - Karen Miller
- St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Stacy A Reeves
- St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Helmi Pett
- Department of Medical Microbiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | | | - Sergio Wittlin
- Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Christian Scheurer
- Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Sibylle Sax
- Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | - Christoph Fischli
- Swiss Tropical and Public Health Institute, Basel, Switzerland.,University of Basel, Basel, Switzerland
| | | | | | - Gabrielle Josling
- Department of Biochemistry and Molecular Biology and Huck Center for Malaria Research, The Pennsylvania State University, University Park, PA 16802 USA
| | - Taco W A Kooij
- Department of Medical Microbiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | | | - Brice Campo
- Medicines for Malaria Venture, Geneva, Switzerland
| | | | | | - Robert W Sauerwein
- Department of Medical Microbiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands.,TropIQ Health Sciences, Nijmegen, Netherlands
| | - Manuel Llinás
- Department of Biochemistry and Molecular Biology and Huck Center for Malaria Research, The Pennsylvania State University, University Park, PA 16802 USA.,Department of Chemistry, The Pennsylvania State University, University Park, PA 16802 USA
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7
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Niehues H, Jansen PAM, Rodijk-Olthuis D, Rikken G, Smits JPH, Schalkwijk J, Zeeuwen PLJM, van den Bogaard EHJ. Know your enemy: Unexpected, pervasive and persistent viral and bacterial contamination of primary cell cultures. Exp Dermatol 2020; 29:672-676. [PMID: 32506526 PMCID: PMC7496648 DOI: 10.1111/exd.14126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/17/2020] [Accepted: 05/26/2020] [Indexed: 01/20/2023]
Abstract
In biomedical research, cell culture contamination is one of the main culprits of experimental failure. Contamination sources and concomitant remedies are numerous and challenging to manage. We herein describe two cases of uncommon contamination of cell cultures that we encountered, and the successful determination and eradication strategies. The first case describes the infection with human adenovirus C that originated from pharyngeal tonsils used for isolation of primary tonsillar epithelial cells. It is known that viral contamination of in vitro cell cultures can occur symptomless and is therefore difficult to identify. The contamination was pervasive and persistent, as it was widely spread in flow cabinets and apparatus, and has caused a serious delay to our research projects and the inevitable loss of valuable (patient-derived) cell sources. Eradication was successful by formalin gas sterilization of the flow cabinet and elimination of all infected cell lines from our biobank after PCR-guided determination. Secondly, we encountered a spore-forming bacterium, namely Brevibacillus brevis, in our cell culture facility. This bacterium originated from contaminated tap water pipes and spread via regular aseptic culture techniques due to survival of the bacterial spores in 70% ethanol. B brevis overgrew the cultures within a few days after seeding of the primary cells. Chlorine solution effectively killed this spore-forming bacterium. Both cases of contamination were identified using DNA sequencing which enabled the deployment of targeted aseptic techniques for the elimination of the persistent contamination.
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Affiliation(s)
- Hanna Niehues
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands
| | - Patrick A M Jansen
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands
| | - Diana Rodijk-Olthuis
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands
| | - Gijs Rikken
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands
| | - Jos P H Smits
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands
| | - Joost Schalkwijk
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands
| | - Patrick L J M Zeeuwen
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands
| | - Ellen H J van den Bogaard
- Department of Dermatology, Radboud University Medical Center (Radboudumc), Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands
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8
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Jansen PAM, van der Krieken DA, Botman PNM, Blaauw RH, Cavina L, Raaijmakers EM, de Heuvel E, Sandrock J, Pennings LJ, Hermkens PHH, Zeeuwen PLJM, Rutjes FPJT, Schalkwijk J. Stable pantothenamide bioisosteres: novel antibiotics for Gram-positive bacteria. J Antibiot (Tokyo) 2019; 72:682-692. [PMID: 31171848 PMCID: PMC6760626 DOI: 10.1038/s41429-019-0196-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/06/2019] [Accepted: 05/10/2019] [Indexed: 01/21/2023]
Abstract
The emergence of multidrug resistant bacteria has prioritized the development of new antibiotics. N-substituted pantothenamides, analogs of the natural compound pantetheine, were reported to target bacterial coenzyme A biosynthesis, but these compounds have never reached the clinic due to their instability in biological fluids. Plasma-stable pantothenamide analogs could overcome these issues. We first synthesized a number of bioisosteres of the prototypic pantothenamide N7-Pan. A compound with an inverted amide bond (CXP18.6-012) was found to provide plasma-stability with minimal loss of activity compared to the parent compound N7-Pan. Next, we synthesized inverted pantothenamides with a large variety of side chains. Among these we identified a number of novel stable inverted pantothenamides with selective activity against Gram-positive bacteria such as staphylococci and streptococci, at low micromolar concentrations. These data provide future direction for the development of pantothenamides with clinical potential.
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Affiliation(s)
- Patrick A M Jansen
- Department of Dermatology, Radboud University Medical Center, Nijmegen, The Netherlands.
| | | | | | | | | | | | | | | | - Lian J Pennings
- Department of Medical Microbiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Patrick L J M Zeeuwen
- Department of Dermatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Floris P J T Rutjes
- Institute for Molecules and Materials, Radboud University, Nijmegen, The Netherlands
| | - Joost Schalkwijk
- Department of Dermatology, Radboud University Medical Center, Nijmegen, The Netherlands.
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9
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van den Bogaard EHJ, van Geel M, van Vlijmen-Willems IMJJ, Jansen PAM, Peppelman M, van Erp PEJ, Atalay S, Venselaar H, Simon MEH, Joosten M, Schalkwijk J, Zeeuwen PLJM. Deficiency of the human cysteine protease inhibitor cystatin M/E causes hypotrichosis and dry skin. Genet Med 2018; 21:1559-1567. [PMID: 30425301 PMCID: PMC6752276 DOI: 10.1038/s41436-018-0355-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 10/29/2018] [Indexed: 01/01/2023] Open
Abstract
Purpose We aimed to assess the biological and clinical significance of the human cysteine protease inhibitor cystatin M/E, encoded by the CTS6 gene, in diseases of human hair and skin. Methods Exome and Sanger sequencing was performed to reveal the genetic cause in two related patients with hypotrichosis. Immunohistochemical, biophysical, and biochemical measurements were performed on patient skin and 3D-reconstructed skin from patient-derived keratinocytes. Results We identified a homozygous variant c.361C>T (p.Gln121*), resulting in a premature stop codon in exon 2 of CST6 associated with hypotrichosis, eczema, blepharitis, photophobia and impaired sweating. Enzyme assays using recombinant mutant cystatin M/E protein, generated by site-directed mutagenesis, revealed that this p.Gln121* variant was unable to inhibit any of its three target proteases (legumain and cathepsins L and V). Three-dimensional protein structure prediction confirmed the disturbance of the protease/inhibitor binding sites of legumain and cathepsins L and V in the p.Gln121* variant. Conclusion The herein characterized autosomal recessive hypotrichosis syndrome indicates an important role of human cystatin M/E in epidermal homeostasis and hair follicle morphogenesis.
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Affiliation(s)
- Ellen H J van den Bogaard
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Michel van Geel
- Department of Dermatology, Maastricht University Medical Centre, Maastricht, The Netherlands.,Department of Clinical Genetics, Maastricht University Medical Centre, Maastricht, The Netherlands.,GROW Research Institute for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Ivonne M J J van Vlijmen-Willems
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Patrick A M Jansen
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Malou Peppelman
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Piet E J van Erp
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Selma Atalay
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Hanka Venselaar
- Center for Molecular and Biomolecular Informatics, RIMLS, Radboudumc, Nijmegen, The Netherlands
| | - Marleen E H Simon
- Department of Medical Genetics, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Marieke Joosten
- Department of Clinical Genetics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Joost Schalkwijk
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands
| | - Patrick L J M Zeeuwen
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Nijmegen Medical Center (Radboudumc), Nijmegen, The Netherlands.
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10
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van Kilsdonk JWJ, Jansen PAM, van den Bogaard EH, Bos C, Bergers M, Zeeuwen PLJM, Schalkwijk J. The Effects of Human Beta-Defensins on Skin Cells in vitro. Dermatology 2017; 233:155-163. [PMID: 28689201 DOI: 10.1159/000477346] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 05/03/2017] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Defensins are antimicrobial peptides that exert immunomodulatory and chemotactic functions. Based on these properties and their high expression levels in the skin, they are likely to affect skin inflammation, infection, and wound healing. This may lead to therapeutic applications in (burn) wound healing. OBJECTIVE We aimed to investigate the effects of human β-defensins (hBDs) on keratinocytes and fibroblasts, 2 major skin cell types involved in skin regeneration. METHODS Monolayer keratinocyte and fibroblast cultures were exposed to recombinant hBDs, and we overexpressed hBD2 and hBD3 in keratinocytes of reconstructed epidermal equivalents by lentiviral transduction. The effects were measured by immunohistochemistry, quantitative real-time PCR, and migration assays. Kinome analyses were performed on cultured keratinocytes to investigate the signal transduction events elicited by hBD stimulation. RESULTS We found that hBD3 induced the expression of cytokines and chemokines in keratinocytes, which was not observed in fibroblasts. hBD2, however, stimulated cell migration only in fibroblasts, which was not found for hBD3. Both defensins are likely to exert receptor-mediated effects in keratinocytes, as witnessed by changes in protein kinase activation following stimulation by hBD2 and hBD3. Kinome analysis suggested that protein kinase C activation was a common event for both defensins. We observed, however, considerable differences in keratinocyte responses between stimulation by exogenous recombinant defensins and endogenous defensins expressed following lentiviral transduction. CONCLUSION Defensins exert modest biological effects on skin cells that are potentially beneficial in wound healing, but many questions regarding the biological mechanisms of action and relevance for the in vivo situation are still remaining.
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Affiliation(s)
- Jeroen W J van Kilsdonk
- Department of Dermatology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Centre (Radboudumc), Nijmegen, The Netherlands
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11
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Niehues H, Tsoi LC, van der Krieken DA, Jansen PAM, Oortveld MAW, Rodijk-Olthuis D, van Vlijmen IMJJ, Hendriks WJAJ, Helder RW, Bouwstra JA, van den Bogaard EH, Stuart PE, Nair RP, Elder JT, Zeeuwen PLJM, Schalkwijk J. Psoriasis-Associated Late Cornified Envelope (LCE) Proteins Have Antibacterial Activity. J Invest Dermatol 2017. [PMID: 28634035 DOI: 10.1016/j.jid.2017.06.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Terminally differentiating epidermal keratinocytes express a large number of structural and antimicrobial proteins that are involved in the physical barrier function of the stratum corneum and provide innate cutaneous host defense. Late cornified envelope (LCE) genes, located in the epidermal differentiation complex on chromosome 1, encode a family of 18 proteins of unknown function, whose expression is largely restricted to epidermis. Deletion of two members, LCE3B and LCE3C (LCE3B/C-del), is a widely-replicated psoriasis risk factor that interacts with the major psoriasis-psoriasis risk gene HLA-C*06. Here we performed quantitative trait locus analysis, utilizing RNA-seq data from human skin and found that LCE3B/C-del was associated with a markedly increased expression of LCE3A, a gene directly adjacent to LCE3B/C-del. We confirmed these findings in a 3-dimensional skin model using primary keratinocytes from LCE3B/C-del genotyped donors. Functional analysis revealed that LCE3 proteins, and LCE3A in particular, have defensin-like antimicrobial activity against a variety of bacterial taxa at low micromolar concentrations. No genotype-dependent effect was observed for the inside-out or outside-in physical skin barrier function. Our findings identify an unknown biological function for LCE3 proteins and suggest a role in epidermal host defense and LCE3B/C-del-mediated psoriasis risk.
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Affiliation(s)
- Hanna Niehues
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Lam C Tsoi
- Department of Dermatology, University of Michigan, Ann Arbor, Michigan, USA; Department of Computational Medicine & Bioinformatics, University of Michigan, Ann Arbor, Michigan, USA; Department of Biostatistics, University of Michigan, Ann Arbor, Michigan, USA
| | - Danique A van der Krieken
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Patrick A M Jansen
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Merel A W Oortveld
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Diana Rodijk-Olthuis
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Ivonne M J J van Vlijmen
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Wiljan J A J Hendriks
- Department of Cell Biology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Richard W Helder
- Leiden Academic Center for Drug Research, Department of Drug Delivery Technology, Gorlaeus Laboratories, Leiden University, Leiden, The Netherlands
| | - Joke A Bouwstra
- Leiden Academic Center for Drug Research, Department of Drug Delivery Technology, Gorlaeus Laboratories, Leiden University, Leiden, The Netherlands
| | - Ellen H van den Bogaard
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Philip E Stuart
- Department of Dermatology, University of Michigan, Ann Arbor, Michigan, USA
| | - Rajan P Nair
- Department of Dermatology, University of Michigan, Ann Arbor, Michigan, USA
| | - James T Elder
- Department of Dermatology, University of Michigan, Ann Arbor, Michigan, USA; Ann Arbor Veterans Affairs Hospital, Ann Arbor, Michigan, USA
| | - Patrick L J M Zeeuwen
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Joost Schalkwijk
- Department of Dermatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands.
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12
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van der Krieken DA, Ederveen THA, van Hijum SAFT, Jansen PAM, Melchers WJG, Scheepers PTJ, Schalkwijk J, Zeeuwen PLJM. An In vitro Model for Bacterial Growth on Human Stratum Corneum. Acta Derm Venereol 2016; 96:873-879. [PMID: 26976779 DOI: 10.2340/00015555-2401] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The diversity and dynamics of the skin microbiome in health and disease have been studied recently, but adequate model systems to study skin microbiotas in vitro are largely lacking. We developed an in vitro system that mimics human stratum corneum, using human callus as substrate and nutrient source for bacterial growth. The growth of several commensal and pathogenic bacterial strains was measured for up to one week by counting colony-forming units or by quantitative PCR with strain-specific primers. Human skin pathogens were found to survive amidst a minimal microbiome consisting of 2 major skin commensals: Staphylococcus epidermidis and Propionibacterium acnes. In addition, complete microbiomes, taken from the backs of healthy volunteers, were inoculated and maintained using this system. This model may enable the modulation of skin microbiomes in vitro and allow testing of pathogens, biological agents and antibiotics in a medium-throughput format.
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13
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Pett HE, Jansen PAM, Hermkens PHH, Botman PNM, Beuckens-Schortinghuis CA, Blaauw RH, Graumans W, van de Vegte-Bolmer M, Koolen KMJ, Rutjes FPJT, Dechering KJ, Sauerwein RW, Schalkwijk J. Novel pantothenate derivatives for anti-malarial chemotherapy. Malar J 2015; 14:169. [PMID: 25927675 PMCID: PMC4425855 DOI: 10.1186/s12936-015-0673-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 04/04/2015] [Indexed: 02/02/2023] Open
Abstract
Background A number of synthetic pantothenate derivatives, such as pantothenamides, are known to inhibit the growth of the human malaria parasite Plasmodium falciparum, by interfering with the parasite Coenzyme A (CoA) biosynthetic pathway. The clinical use of pantothenamides is limited by their sensitivity to breakdown by ubiquitous human pantetheinases of the vanin family. Methods A number of pantothenate derivatives (pantothenones) with potent and specific inhibitory activity against mammalian vanins were tested in a proliferation assay of asexual P. falciparum blood stages alone, and in combination with pantothenamides. Results The vanin inhibitors were found to protect pantothenamides against breakdown by plasma vanins, thereby preserving the in vitro anti-malarial activity. Moreover, some of the vanin inhibitors showed in vitro anti-malarial activity in the low micromolar range. The most potent antimalarial in this series of compounds (RR8), was found to compete with pantothenate in a combination proliferation assay. No correlation, however, was found between anti-vanin and anti-malarial activity, nor was pantetheinase activity detected in P. falciparum extracts. Conclusions Growth inhibition is most likely due to competition with pantothenate, rather than pantetheinase inhibition. As vanin inhibitors of the pantothenone class are stable in biological fluids and are non-toxic to mammalian cells, they may represent novel pantothenate-based anti-malarials, either on their own or in combination with pantothenamides. Electronic supplementary material The online version of this article (doi:10.1186/s12936-015-0673-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Helmi E Pett
- Department of Medical Microbiology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands.
| | - Patrick A M Jansen
- Department of Dermatology and Radboud Institute for Molecular Life Sciences, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands.
| | | | | | | | | | - Wouter Graumans
- Department of Medical Microbiology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands.
| | - Marga van de Vegte-Bolmer
- Department of Medical Microbiology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands.
| | | | - Floris P J T Rutjes
- Radboud University Nijmegen, Institute for Molecules and Materials, Nijmegen, The Netherlands. .,Pansynt B V, Nijmegen, The Netherlands.
| | | | - Robert W Sauerwein
- Department of Medical Microbiology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands. .,TropIQ Health Sciences, Nijmegen, The Netherlands.
| | - Joost Schalkwijk
- Department of Dermatology and Radboud Institute for Molecular Life Sciences, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands. .,Pansynt B V, Nijmegen, The Netherlands.
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14
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de Koning HD, van Gijn ME, Stoffels M, Jongekrijg J, Zeeuwen PLJM, Elferink MG, Nijman IJ, Jansen PAM, Neveling K, van der Meer JWM, Schalkwijk J, Simon A. Myeloid lineage-restricted somatic mosaicism of NLRP3 mutations in patients with variant Schnitzler syndrome. J Allergy Clin Immunol 2014; 135:561-4. [PMID: 25239704 DOI: 10.1016/j.jaci.2014.07.050] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 06/29/2014] [Accepted: 07/23/2014] [Indexed: 01/04/2023]
Affiliation(s)
- Heleen D de Koning
- Department of Dermatology, Radboud University Medical Center, Nijmegen, The Netherlands; Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands; Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands; Nijmegen Center for Immunodeficiency and Autoinflammation, Nijmegen, The Netherlands.
| | - Mariëlle E van Gijn
- Department of Medical Genetics, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Monique Stoffels
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands; Nijmegen Center for Immunodeficiency and Autoinflammation, Nijmegen, The Netherlands
| | - Johanna Jongekrijg
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands; Nijmegen Center for Immunodeficiency and Autoinflammation, Nijmegen, The Netherlands
| | - Patrick L J M Zeeuwen
- Department of Dermatology, Radboud University Medical Center, Nijmegen, The Netherlands; Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands; Nijmegen Center for Immunodeficiency and Autoinflammation, Nijmegen, The Netherlands
| | - Martin G Elferink
- Department of Medical Genetics, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Isaac J Nijman
- Department of Medical Genetics, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Patrick A M Jansen
- Department of Dermatology, Radboud University Medical Center, Nijmegen, The Netherlands; Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands; Nijmegen Center for Immunodeficiency and Autoinflammation, Nijmegen, The Netherlands
| | - Kornelia Neveling
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands; Institute for Genetic and Metabolic Disease (IGMD), Nijmegen, The Netherlands
| | - Jos W M van der Meer
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands; Nijmegen Center for Immunodeficiency and Autoinflammation, Nijmegen, The Netherlands
| | - Joost Schalkwijk
- Department of Dermatology, Radboud University Medical Center, Nijmegen, The Netherlands; Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands; Nijmegen Center for Immunodeficiency and Autoinflammation, Nijmegen, The Netherlands.
| | - Anna Simon
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands; Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands; Nijmegen Center for Immunodeficiency and Autoinflammation, Nijmegen, The Netherlands
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15
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van Kilsdonk JWJ, van den Bogaard EH, Jansen PAM, Bos C, Bergers M, Schalkwijk J. An in vitro wound healing model for evaluation of dermal substitutes. Wound Repair Regen 2013; 21:890-6. [DOI: 10.1111/wrr.12086] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Accepted: 06/02/2013] [Indexed: 01/07/2023]
Affiliation(s)
- Jeroen W. J. van Kilsdonk
- Department of Dermatology; Nijmegen Center for Molecular Life Sciences; Radboud University Nijmegen Medical Center; Nijmegen The Netherlands
| | - Ellen H. van den Bogaard
- Department of Dermatology; Nijmegen Center for Molecular Life Sciences; Radboud University Nijmegen Medical Center; Nijmegen The Netherlands
| | - Patrick A. M. Jansen
- Department of Dermatology; Nijmegen Center for Molecular Life Sciences; Radboud University Nijmegen Medical Center; Nijmegen The Netherlands
| | - Charlotte Bos
- Department of Dermatology; Nijmegen Center for Molecular Life Sciences; Radboud University Nijmegen Medical Center; Nijmegen The Netherlands
| | - Mieke Bergers
- Department of Dermatology; Nijmegen Center for Molecular Life Sciences; Radboud University Nijmegen Medical Center; Nijmegen The Netherlands
| | - Joost Schalkwijk
- Department of Dermatology; Nijmegen Center for Molecular Life Sciences; Radboud University Nijmegen Medical Center; Nijmegen The Netherlands
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16
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Jansen PAM, van Diepen JA, Ritzen B, Zeeuwen PLJM, Cacciatore I, Cornacchia C, van Vlijmen-Willems IMJJ, de Heuvel E, Botman PNM, Blaauw RH, Hermkens PHH, Rutjes FPJT, Schalkwijk J. Discovery of small molecule vanin inhibitors: new tools to study metabolism and disease. ACS Chem Biol 2013; 8:530-4. [PMID: 23270378 DOI: 10.1021/cb3006424] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Vanins are enzymes with pantetheinase activity and are presumed to play a role in the recycling of pantothenic acid (vitamin B5) from pantetheine. Pantothenic acid is an essential nutrient required to synthesize coenzyme A, a cofactor involved in many biological processes such as fatty acid synthesis and oxidation of pyruvate to fuel the citric acid cycle. Hydrolysis of pantetheine also liberates cysteamine, a known antioxidant. Vanin-1 is highly expressed in liver and is under transcriptional control of PPAR-α and nutritional status, suggesting a role in energy metabolism. The lack of potent and specific inhibitors of vanins has hampered detailed investigation of their function. We hereby report the design, synthesis, and characterization of a novel pantetheine analogue, RR6, that acts as a selective, reversible, and competitive vanin inhibitor at nanomolar concentration. Oral administration of RR6 in rats completely inhibited plasma vanin activity and caused alterations of plasma lipid concentrations upon fasting, thereby illustrating its potential use in chemical biology research.
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Affiliation(s)
| | | | - Bas Ritzen
- Department
of Synthetic Organic
Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, The Netherlands
| | | | - Ivana Cacciatore
- Department of Pharmacy, “G. d’Annunzio” University, Chieti-Pescara,
Italy
| | - Catia Cornacchia
- Department of Pharmacy, “G. d’Annunzio” University, Chieti-Pescara,
Italy
| | | | | | | | | | - Pedro H. H. Hermkens
- Department
of Synthetic Organic
Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, The Netherlands
| | - Floris P. J. T. Rutjes
- Department
of Synthetic Organic
Chemistry, Institute for Molecules and Materials, Radboud University Nijmegen, The Netherlands
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17
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Jansen PAM, van den Bogaard EH, Kersten FFJ, Oostendorp C, van Vlijmen-Willems IMJJ, Oji V, Traupe H, Hennies HC, Schalkwijk J, Zeeuwen PLJM. Cystatin M/E knockdown by lentiviral delivery of shRNA impairs epidermal morphogenesis of human skin equivalents. Exp Dermatol 2012; 21:889-91. [DOI: 10.1111/exd.12022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | - Corien Oostendorp
- Department of Dermatology; Radboud University Nijmegen Medical Centre; Nijmegen; the Netherlands
| | | | - Vinzenz Oji
- Department of Dermatology; University Hospital; Münster; Germany
| | - Heiko Traupe
- Department of Dermatology; University Hospital; Münster; Germany
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18
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van den Bogaard EH, Rodijk-Olthuis D, Jansen PAM, van Vlijmen-Willems IMJJ, van Erp PE, Joosten I, Zeeuwen PLJM, Schalkwijk J. Rho kinase inhibitor Y-27632 prolongs the life span of adult human keratinocytes, enhances skin equivalent development, and facilitates lentiviral transduction. Tissue Eng Part A 2012; 18:1827-36. [PMID: 22519508 DOI: 10.1089/ten.tea.2011.0616] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The use of tissue-engineered human skin equivalents (HSE) for fundamental research and industrial application requires the expansion of keratinocytes from a limited number of skin biopsies donated by adult healthy volunteers or patients. A pharmacological inhibitor of Rho-associated protein kinases, Y-27632, was recently reported to immortalize neonatal human foreskin keratinocytes. Here, we investigated the potential use of Y-27632 to expand human adult keratinocytes and evaluated its effects on HSE development and in vitro gene delivery assays. Y-27632 was found to significantly increase the life span of human adult keratinocytes (up to five to eight passages). The epidermal morphology of HSEs generated from high-passage, Y-27632-treated keratinocytes resembled the native epidermis and was improved by supplementing Y-27632 during the submerged phase of HSE development. In addition, Y-27632-treated keratinocytes responded normally to inflammatory stimuli, and could be used to generate HSEs with a psoriatic phenotype, upon stimulation with relevant cytokines. Furthermore, Y-27632 significantly enhanced both lentiviral transduction efficiency of primary adult keratinocytes and epidermal morphology of HSEs generated thereof. Our study indicates that Y-27632 is a potentially powerful tool that is used for a variety of applications of adult human keratinocytes.
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Affiliation(s)
- Ellen H van den Bogaard
- Department of Dermatology, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.
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Medendorp K, Vreede L, van Groningen JJM, Hetterschijt L, Brugmans L, Jansen PAM, van den Hurk WH, de Bruijn DRH, van Kessel AG. The mitotic arrest deficient protein MAD2B interacts with the clathrin light chain A during mitosis. PLoS One 2010; 5:e15128. [PMID: 21152103 PMCID: PMC2994903 DOI: 10.1371/journal.pone.0015128] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Accepted: 10/24/2010] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Although the mitotic arrest deficient protein MAD2B (MAD2L2) is thought to inhibit the anaphase promoting complex (APC) by binding to CDC20 and/or CDH1 (FZR1), its exact role in cell cycle control still remains to be established. METHODOLOGY/PRINCIPAL FINDINGS Using a yeast two-hybrid interaction trap we identified the human clathrin light chain A (CLTA) as a novel MAD2B binding protein. A direct interaction was established in mammalian cells via GST pull-down and endogenous co-immunoprecipitation during the G2/M phase of the cell cycle. Through subsequent confocal laser scanning microscopy we found that MAD2B and CLTA co-localize at the mitotic spindle. Clathrin forms a trimeric structure, i.e., the clathrin triskelion, consisting of three heavy chains (CLTC), each with an associated light chain. This clathrin structure has previously been shown to be required for the function of the mitotic spindle through stabilization of kinetochore fibers. Upon siRNA-mediated MAD2B depletion, we found that CLTA was no longer concentrated at the mitotic spindle but, instead, diffusely distributed throughout the cell. In addition, we found a marked increase in the percentage of misaligned chromosomes. CONCLUSIONS/SIGNIFICANCE Previously, we identified MAD2B as an interactor of the renal cell carcinoma (RCC)-associated protein PRCC. In addition, we found that fusion of PRCC with the transcription factor TFE3 in t(X;1)(p11;q21)-positive RCCs results in an impairment of this interaction and a concomitant failure to shuttle MAD2B to the nucleus. Our current data show that MAD2B interacts with CLTA during the G2/M phase of the cell cycle and that depletion of MAD2B leads to a marked increase in the percentage of misaligned chromosomes and a redistribution of CLTA during mitosis.
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Affiliation(s)
- Klaas Medendorp
- Department of Human Genetics, Radboud University Nijmegen Medical Centre, Nijmegen Centre for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Lilian Vreede
- Department of Human Genetics, Radboud University Nijmegen Medical Centre, Nijmegen Centre for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Jan J. M. van Groningen
- Department of Human Genetics, Radboud University Nijmegen Medical Centre, Nijmegen Centre for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Lisette Hetterschijt
- Department of Human Genetics, Radboud University Nijmegen Medical Centre, Nijmegen Centre for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Linda Brugmans
- Department of Human Genetics, Radboud University Nijmegen Medical Centre, Nijmegen Centre for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Patrick A. M. Jansen
- Department of Dermatology, Radboud University Nijmegen Medical Centre, Nijmegen Centre for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Wilhelmina H. van den Hurk
- Department of Human Genetics, Radboud University Nijmegen Medical Centre, Nijmegen Centre for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Diederik R. H. de Bruijn
- Department of Human Genetics, Radboud University Nijmegen Medical Centre, Nijmegen Centre for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Ad Geurts van Kessel
- Department of Human Genetics, Radboud University Nijmegen Medical Centre, Nijmegen Centre for Molecular Life Sciences, Nijmegen, The Netherlands
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20
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Jansen PAM, Rodijk-Olthuis D, Hollox EJ, Kamsteeg M, Tjabringa GS, de Jongh GJ, van Vlijmen-Willems IMJJ, Bergboer JGM, van Rossum MM, de Jong EMGJ, den Heijer M, Evers AWM, Bergers M, Armour JAL, Zeeuwen PLJM, Schalkwijk J. Beta-defensin-2 protein is a serum biomarker for disease activity in psoriasis and reaches biologically relevant concentrations in lesional skin. PLoS One 2009; 4:e4725. [PMID: 19266104 PMCID: PMC2649503 DOI: 10.1371/journal.pone.0004725] [Citation(s) in RCA: 132] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2008] [Accepted: 02/08/2009] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Previous studies have extensively documented antimicrobial and chemotactic activities of beta-defensins. Human beta-defensin-2 (hBD-2) is strongly expressed in lesional psoriatic epidermis, and recently we have shown that high beta-defensin genomic copy number is associated with psoriasis susceptibility. It is not known, however, if biologically and pathophysiologically relevant concentrations of hBD-2 protein are present in vivo, which could support an antimicrobial and proinflammatory role of beta-defensins in lesional psoriatic epidermis. METHODOLOGY/PRINCIPAL FINDINGS We found that systemic levels of hBD-2 showed a weak but significant correlation with beta defensin copy number in healthy controls but not in psoriasis patients with active disease. In psoriasis patients but not in atopic dermatitis patients, we found high systemic hBD-2 levels that strongly correlated with disease activity as assessed by the PASI score. Our findings suggest that systemic levels in psoriasis are largely determined by secretion from involved skin and not by genomic copy number. Modelling of the in vivo epidermal hBD-2 concentration based on the secretion rate in a reconstructed skin model for psoriatic epidermis provides evidence that epidermal hBD-2 levels in vivo are probably well above the concentrations required for in vitro antimicrobial and chemokine-like effects. CONCLUSIONS/SIGNIFICANCE Serum hBD-2 appears to be a useful surrogate marker for disease activity in psoriasis. The discrepancy between hBD-2 levels in psoriasis and atopic dermatitis could explain the well known differences in infection rate between these two diseases.
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Affiliation(s)
- Patrick A. M. Jansen
- Department of Dermatology and Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Diana Rodijk-Olthuis
- Department of Dermatology and Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Edward J. Hollox
- Department of Genetics, University of Leicester, Leicester, United Kingdom
| | - Marijke Kamsteeg
- Department of Dermatology and Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Geuranne S. Tjabringa
- Department of Dermatology and Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Gys J. de Jongh
- Department of Dermatology and Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Ivonne M. J. J. van Vlijmen-Willems
- Department of Dermatology and Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Judith G. M. Bergboer
- Department of Dermatology and Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Michelle M. van Rossum
- Department of Dermatology and Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Elke M. G. J. de Jong
- Department of Dermatology and Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Martin den Heijer
- Department of Endocrinology and Department of Epidemiology and Biostatistics, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Andrea W. M. Evers
- Department of Medical Psychology, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Mieke Bergers
- Department of Dermatology and Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - John A. L. Armour
- Institute of Genetics, University of Nottingham, Nottingham, United Kingdom
| | - Patrick L. J. M. Zeeuwen
- Department of Dermatology and Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Joost Schalkwijk
- Department of Dermatology and Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
- * E-mail:
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