1
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De Tollenaere M, Meunier M, Durduret A, Chapuis E, Auriol P, Auriol D, Scandolera A, Reynaud R. Facial pore refining by targeting dermal and epidermal functions: Assessment across age and gender. J Cosmet Dermatol 2024. [PMID: 39086149 DOI: 10.1111/jocd.16424] [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: 03/26/2024] [Revised: 05/28/2024] [Accepted: 05/30/2024] [Indexed: 08/02/2024]
Abstract
BACKGROUND Conspicuous facial pores are benign but represent a cosmetic concern for men and women. Recent works described dermal and epidermal impairments as clinical causes of enlarged pores. Morphological modifications of skin at the site of pores were associated with collagen density loss, possible alteration of extracellular matrix and abnormal differentiation of keratinocytes. AIMS A composition containing mannose-6-phosphate (Active Complex) was designed to address these different aspects of pore enlargement. In vitro and ex vivo evaluations were conducted in different models mimicking disturbance of dermal and epidermal functions. The pore refining activity of Active Complex was assessed in two clinical trials studying a Caucasian women cohort and an Asian men cohort. RESULTS At the dermal level, Active Complex upregulated collagen I and decorin synthesis, and genes encoding collagens I, III, V, VII, XVII; suggesting its ability to favor collagen fiber organization and anchorage. The downregulation of matrix metalloprotease, involved in extracellular matrix degradation, reinforced the protective effect of Active Complex in the dermis. Active Complex down modulated differentiation markers in keratinocytes as well as genes involved in cell renewal. Study of reconstructed human epidermis modeling keratinocyte hyperproliferation revealed that Active Complex mitigated two markers of this state: number of nuclei in the stratum corneum and involucrin expression. Clinical trials confirmed the pore refining activity of Active Complex on men and women of different ages and ethnicities; -24% total skin pore area after 56 days of application on women, and -30.2% on men after 7 days. CONCLUSIONS This work demonstrates the interest to target dermal and epidermal modifications described in conspicuous pore area, especially dermis fiber organization, to address this cosmetic concern.
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Affiliation(s)
- Morgane De Tollenaere
- Givaudan Active Beauty, Research and Development, Givaudan France SAS, Pomacle, France
| | - Marie Meunier
- Givaudan Active Beauty, Research and Development, Givaudan France SAS, Pomacle, France
| | - Anaïs Durduret
- Givaudan Active Beauty, Research and Development, Givaudan France SAS, Pomacle, France
| | - Emilie Chapuis
- Givaudan Active Beauty, Research and Development, Givaudan France SAS, Pomacle, France
| | - Pascale Auriol
- Givaudan Active Beauty, Research and Development, Givaudan France SAS, Toulouse, France
| | - Daniel Auriol
- Givaudan Active Beauty, Research and Development, Givaudan France SAS, Toulouse, France
| | - Amandine Scandolera
- Givaudan Active Beauty, Research and Development, Givaudan France SAS, Pomacle, France
| | - Romain Reynaud
- Givaudan Active Beauty, Research and Development, Givaudan France SAS, Toulouse, France
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2
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Fujiwara H. Dynamic duo: Cell-extracellular matrix interactions in hair follicle development and regeneration. Dev Biol 2024:S0012-1606(24)00192-1. [PMID: 39059679 DOI: 10.1016/j.ydbio.2024.07.012] [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: 01/06/2024] [Revised: 06/20/2024] [Accepted: 07/23/2024] [Indexed: 07/28/2024]
Abstract
Ectodermal organs, such as hair follicles, originate from simple epithelial and mesenchymal sheets through a complex developmental process driven by interactions between these cell types. This process involves dermal condensation, placode formation, bud morphogenesis, and organogenesis, and all of these processes require intricate interactions among various tissues. Recent research has emphasized the crucial role of reciprocal and dynamic interactions between cells and the extracellular matrix (ECM), referred to as the "dynamic duo", in the development of ectodermal organs. These interactions provide spatially and temporally changing biophysical and biochemical cues within tissues. Using the hair follicle as an example, this review highlights two types of cell-ECM adhesion units-focal adhesion-type and hemidesmosome-type adhesion units-that facilitate communication between epithelial and mesenchymal cells. This review further explores how these adhesion units, along with other cell-ECM interactions, evolve during hair follicle development and regeneration, underscoring their importance in guiding both developmental and regenerative processes.
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3
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Ouahed JD, Griffith A, Collen LV, Snapper SB. Breaking Down Barriers: Epithelial Contributors to Monogenic IBD Pathogenesis. Inflamm Bowel Dis 2024; 30:1189-1206. [PMID: 38280053 DOI: 10.1093/ibd/izad319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Indexed: 01/29/2024]
Abstract
Monogenic causes of inflammatory bowel diseases (IBD) are increasingly being discovered. To date, much attention has been placed in those resulting from inborn errors of immunity. Therapeutic efforts have been largely focused on offering personalized immune modulation or curative bone marrow transplant for patients with IBD and underlying immune disorders. To date, less emphasis has been placed on monogenic causes of IBD that pertain to impairment of the intestinal epithelial barrier. Here, we provide a comprehensive review of monogenic causes of IBD that result in impaired intestinal epithelial barrier that are categorized into 6 important functions: (1) epithelial cell organization, (2) epithelial cell intrinsic functions, (3) epithelial cell apoptosis and necroptosis, (4) complement activation, (5) epithelial cell signaling, and (6) control of RNA degradation products. We illustrate how impairment of any of these categories can result in IBD. This work reviews the current understanding of the genes involved in maintaining the intestinal barrier, the inheritance patterns that result in dysfunction, features of IBD resulting from these disorders, and pertinent translational work in this field.
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Affiliation(s)
- Jodie D Ouahed
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
| | - Alexandra Griffith
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
| | - Lauren V Collen
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
| | - Scott B Snapper
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
- Division of Gastroenterology, Department of Medicine, Brigham & Women's Hospital and Harvard Medical School, Boston, MA, USA
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4
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Gao CW, Lin W, Riddle RC, Chopra S, Kim J, Boukas L, Hansen KD, Björnsson HT, Fahrner JA. Growth deficiency in a mouse model of Kabuki syndrome 2 bears mechanistic similarities to Kabuki syndrome 1. PLoS Genet 2024; 20:e1011310. [PMID: 38857303 PMCID: PMC11192384 DOI: 10.1371/journal.pgen.1011310] [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: 10/16/2023] [Revised: 06/21/2024] [Accepted: 05/21/2024] [Indexed: 06/12/2024] Open
Abstract
Growth deficiency is a characteristic feature of both Kabuki syndrome 1 (KS1) and Kabuki syndrome 2 (KS2), Mendelian disorders of the epigenetic machinery with similar phenotypes but distinct genetic etiologies. We previously described skeletal growth deficiency in a mouse model of KS1 and further established that a Kmt2d-/- chondrocyte model of KS1 exhibits precocious differentiation. Here we characterized growth deficiency in a mouse model of KS2, Kdm6atm1d/+. We show that Kdm6atm1d/+ mice have decreased femur and tibia length compared to controls and exhibit abnormalities in cortical and trabecular bone structure. Kdm6atm1d/+ growth plates are also shorter, due to decreases in hypertrophic chondrocyte size and hypertrophic zone height. Given these disturbances in the growth plate, we generated Kdm6a-/- chondrogenic cell lines. Similar to our prior in vitro model of KS1, we found that Kdm6a-/- cells undergo premature, enhanced differentiation towards chondrocytes compared to Kdm6a+/+ controls. RNA-seq showed that Kdm6a-/- cells have a distinct transcriptomic profile that indicates dysregulation of cartilage development. Finally, we performed RNA-seq simultaneously on Kmt2d-/-, Kdm6a-/-, and control lines at Days 7 and 14 of differentiation. This revealed surprising resemblance in gene expression between Kmt2d-/- and Kdm6a-/- at both time points and indicates that the similarity in phenotype between KS1 and KS2 also exists at the transcriptional level.
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Affiliation(s)
- Christine W. Gao
- Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - WanYing Lin
- Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Ryan C. Riddle
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Orthopaedics, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
- Research and Development Service, Baltimore Veterans Administration Medical Center, Baltimore, Maryland, United States of America
| | - Sheetal Chopra
- Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Jiyoung Kim
- Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Leandros Boukas
- Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Biostatistics, Johns Hopkins University School of Public Health, Baltimore, Maryland, United States of America
| | - Kasper D. Hansen
- Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Biostatistics, Johns Hopkins University School of Public Health, Baltimore, Maryland, United States of America
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Hans T. Björnsson
- Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
- Landspítali University Hospital, Reykjavík, Iceland
| | - Jill A. Fahrner
- Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
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5
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So JY, Nazaroff J, Yenamandra VK, Gorell ES, Harris N, Fulchand S, Eid E, Dolorito JA, Marinkovich MP, Tang JY. Functional genotype-phenotype associations in recessive dystrophic epidermolysis bullosa. J Am Acad Dermatol 2024:S0190-9622(24)00732-1. [PMID: 38735484 DOI: 10.1016/j.jaad.2024.04.073] [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: 10/03/2022] [Revised: 03/03/2024] [Accepted: 04/03/2024] [Indexed: 05/14/2024]
Abstract
BACKGROUND Genotype-phenotype associations in recessive dystrophic epidermolysis bullosa (RDEB) have been difficult to elucidate. OBJECTIVE To investigate RDEB genotype-phenotype associations and explore a functional approach to genotype classification. METHODS Clinical examination and genetic testing of RDEB subjects, including assessment of clinical disease by RDEB subtype and extent of blistering. Genotypes were evaluated according to each variant's effect on type VII collagen function per updated literature and subsequently categorized by degree of impact on VII collagen function as low-impact (splice/missense, missense/missense), medium-impact (premature termination codon [PTC]/missense, splice/splice), and high-impact (PTC/PTC, PTC/splice). Genotype-phenotype associations were investigated using Kruskal-Wallis and Fisher's exact tests, and age-adjusted regressions. RESULTS Eighty-three participants were included. High-impact variants were associated with worse RDEB subtype and clinical disease, including increased prevalence of generalized blistering (55.6% for low-impact vs 72.7% medium-impact vs 90.4% high-impact variants, P = .002). In age-adjusted regressions, participants with high-impact variants had 40.8-fold greater odds of squamous cell carcinoma compared to low-impact variants (P = .02), and 5.7-fold greater odds of death compared to medium-impact variants (P = .05). LIMITATIONS Cross-sectional design. CONCLUSION Functional genotype categories may stratify RDEB severity; high-impact variants correlated with worse clinical outcomes. Further validation in larger cohorts is needed.
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Affiliation(s)
- Jodi Y So
- Department of Dermatology, Stanford University School of Medicine, Stanford, California
| | - Jaron Nazaroff
- Department of Dermatology, Stanford University School of Medicine, Stanford, California
| | - Vamsi K Yenamandra
- CSIR-Institute of Genomics & Integrative Biology, Academy of Scientific and Innovative Research, New Delhi, India
| | - Emily S Gorell
- Division of Dermatology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Nicki Harris
- Department of Dermatology, Stanford University School of Medicine, Stanford, California
| | - Shivali Fulchand
- Department of Dermatology, Stanford University School of Medicine, Stanford, California
| | - Edward Eid
- Department of Dermatology, Stanford University School of Medicine, Stanford, California
| | - John A Dolorito
- Department of Dermatology, Stanford University School of Medicine, Stanford, California
| | - M Peter Marinkovich
- Department of Dermatology, Stanford University School of Medicine, Stanford, California; Dermatology Service, Veterans Affairs Palo Alto Medical Center, Palo Alto, California
| | - Jean Y Tang
- Department of Dermatology, Stanford University School of Medicine, Stanford, California.
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6
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Borst R, Meyaard L, Pascoal Ramos MI. Understanding the matrix: collagen modifications in tumors and their implications for immunotherapy. J Transl Med 2024; 22:382. [PMID: 38659022 PMCID: PMC11040975 DOI: 10.1186/s12967-024-05199-3] [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: 12/15/2023] [Accepted: 04/13/2024] [Indexed: 04/26/2024] Open
Abstract
Tumors are highly complex and heterogenous ecosystems where malignant cells interact with healthy cells and the surrounding extracellular matrix (ECM). Solid tumors contain large ECM deposits that can constitute up to 60% of the tumor mass. This supports the survival and growth of cancerous cells and plays a critical role in the response to immune therapy. There is untapped potential in targeting the ECM and cell-ECM interactions to improve existing immune therapy and explore novel therapeutic strategies. The most abundant proteins in the ECM are the collagen family. There are 28 different collagen subtypes that can undergo several post-translational modifications (PTMs), which alter both their structure and functionality. Here, we review current knowledge on tumor collagen composition and the consequences of collagen PTMs affecting receptor binding, cell migration and tumor stiffness. Furthermore, we discuss how these alterations impact tumor immune responses and how collagen could be targeted to treat cancer.
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Affiliation(s)
- Rowie Borst
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
- Oncode Institute, Utrecht, The Netherlands
| | - Linde Meyaard
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
- Oncode Institute, Utrecht, The Netherlands
| | - M Ines Pascoal Ramos
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
- Oncode Institute, Utrecht, The Netherlands.
- Champalimaud Research, Champalimaud Centre for the Unknown, Lisbon, Portugal.
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7
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Strege CL, Miller WC, Eide C, Hubbard J, Tolar J. Methods for Decreasing Preweaning Mortality in a Fragile Mouse Model of Hypomorphic Collagen VII Deficiency. Comp Med 2024; 74:99-104. [PMID: 38508685 PMCID: PMC11078276 DOI: 10.30802/aalas-cm-23-000087] [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: 12/15/2023] [Revised: 01/15/2024] [Accepted: 03/01/2024] [Indexed: 03/22/2024]
Abstract
Preweaning mortality is a widespread problem in laboratory mouse breeding, particularly in the case of fragile mouse models. While numerous studies explore alternative care methods to increase the survivability of common mouse strains, there remains a paucity of research into the care of mice with fragile health conditions that result from induced or natural genetic mutations. In this study, standard husbandry practices were enhanced by the addition of a softened diet, a nutritionally fortified dietary supplement, soft bedding, gentle handling techniques, decreased handling, lengthened weaning age, and dam productivity tracking. This alternative care plan was shown to increase the survival of a fragile recessive dystrophic epidermolysis bullosa mouse model, and some aspects could be used in developing a care plan for other fragile mouse strains.
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Affiliation(s)
- Chloe L Strege
- Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota
| | - William C Miller
- Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota
| | - Cindy Eide
- Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota
| | - Jennifer Hubbard
- Research Animal Resources, University of Minnesota, Minneapolis, Minnesota;,
| | - Jakub Tolar
- Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota;,
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8
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Franchi M, Piperigkou Z, Mastronikolis NS, Karamanos N. Extracellular matrix biomechanical roles and adaptation in health and disease. FEBS J 2024; 291:430-440. [PMID: 37612040 DOI: 10.1111/febs.16938] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/24/2023] [Accepted: 08/22/2023] [Indexed: 08/25/2023]
Abstract
Extracellular matrices (ECMs) are dynamic 3D macromolecular networks that exhibit structural characteristics and composition specific to different tissues, serving various biomechanical and regulatory functions. The interactions between ECM macromolecules such as collagen, elastin, glycosaminoglycans (GAGs), proteoglycans (PGs), fibronectin, and laminin, along with matrix effectors and water, contribute to the unique cellular and tissue functional properties during organ development, tissue homoeostasis, remodeling, disease development, and progression. Cells adapt to environmental changes by adjusting the composition and array of ECM components. ECMs, forming the 3D bioscaffolds of our body, provide mechanical support for tissues and organs and respond to the environmental variables influencing growth and final adult body shape in mammals. Different cell types display distinct adaptations to the respective ECM environments. ECMs regulate biological processes by controlling the diffusion of infections and inflammations, sensing and adapting to external stimuli and gravity from the surrounding habitat, and, in the context of cancer, interplaying with and regulating cancer cell invasion and drug resistance. Alterations in the ECM composition in pathological conditions drive adaptive responses of cells and could therefore result in abnormal cell behavior and tissue dysfunction. Understanding the biomechanical functionality, adaptation, and roles of distinct ECMs is essential for research on various pathologies, including cancer progression and multidrug resistance, which is of crucial importance for developing targeted therapies. In this Viewpoint article, we critically present and discuss specific biomechanical functions of ECMs and regulatory adaptation mechanisms in both health and disease, with a particular focus on cancer progression.
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Affiliation(s)
- Marco Franchi
- Department for Life Quality Studies, University of Bologna, Rimini, Italy
| | - Zoi Piperigkou
- Department of Chemistry, Biochemistry, Biochemical Analysis and Matrix Pathobiology Res. Group, Laboratory of Biochemistry, University of Patras, Greece
- Foundation for Research and Technology-Hellas (FORTH)/Institute of Chemical Engineering Sciences (ICE-HT), Patras, Greece
| | - Nicholas S Mastronikolis
- Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, University of Patras, Greece
| | - Nikos Karamanos
- Department of Chemistry, Biochemistry, Biochemical Analysis and Matrix Pathobiology Res. Group, Laboratory of Biochemistry, University of Patras, Greece
- Foundation for Research and Technology-Hellas (FORTH)/Institute of Chemical Engineering Sciences (ICE-HT), Patras, Greece
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9
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Pilcher L, Solomon L, Dragon JA, Gupta D, Spees JL. The Neural Progenitor Cell-Associated Transcription Factor FoxG1 Regulates Cardiac Epicardial Cell Proliferation. Stem Cells Int 2024; 2024:8601360. [PMID: 38239823 PMCID: PMC10796189 DOI: 10.1155/2024/8601360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 11/10/2023] [Accepted: 12/13/2023] [Indexed: 01/22/2024] Open
Abstract
The epicardium is a layer of mesothelial cells that covers the surface of the heart. During development, epicardial cells undergo epithelial-to-mesenchymal transition (EMT) to form multipotent precursors that migrate into the heart and contribute to the coronary vasculature by differentiating into adventitial fibroblasts, smooth muscle cells, and endothelial cells. Epicardial cells also provide paracrine signals to cardiac myocytes that are required for appropriate heart growth. In adult hearts, a similar process of epicardial cell EMT, migration, and differentiation occurs after myocardial infarction (MI, heart attack). Pathological cardiac hypertrophy is associated with fibrosis, negative remodeling, and reduced cardiac function. In contrast, aerobic exercises such as swimming and running promote physiological (i.e., beneficial) hypertrophy, which is associated with angiogenesis and improved cardiac function. As epicardial cell function(s) during physiological hypertrophy are poorly understood, we analyzed and compared the native epicardial cells isolated directly from the hearts of running-exercised mice and age-matched, nonrunning littermates. To obtain epicardial cells, we enzymatically digested the surfaces of whole hearts and performed magnetic-activated cell sorting (MACS) with antibodies against CD104 (integrin β4). By cDNA microarray assays, we identified genes with increased transcription in epicardial cells after running exercise; these included FoxG1, a transcription factor that controls neural progenitor cell proliferation during brain development and Snord116, a small noncoding RNA that coordinates expression of genes with epigenetic, circadian, and metabolic functions. In cultured epicardial cells, shRNA-mediated FoxG1 knockdown significantly decreased cell proliferation, as well as Snord116 expression. Our results demonstrate that FoxG1 regulates epicardial proliferation, and suggest it may affect cardiac remodeling.
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Affiliation(s)
- Lucy Pilcher
- Department of Medicine, Cardiovascular Research Institute, University of Vermont, Colchester, VT 05446, USA
- Cellular and Molecular Biomedical Sciences Program, University of Vermont, Burlington, VT 05401, USA
| | - Lara Solomon
- Department of Medicine, Cardiovascular Research Institute, University of Vermont, Colchester, VT 05446, USA
- Cellular and Molecular Biomedical Sciences Program, University of Vermont, Burlington, VT 05401, USA
| | - Julie A. Dragon
- Vermont Integrative Genomics Resource, University of Vermont Larner College of Medicine, Burlington, VT 05405, USA
| | - Dhananjay Gupta
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Larner College of Medicine, University of Vermont, Burlington, VT 05446, USA
| | - Jeffrey L. Spees
- Department of Medicine, Cardiovascular Research Institute, University of Vermont, Colchester, VT 05446, USA
- Cellular and Molecular Biomedical Sciences Program, University of Vermont, Burlington, VT 05401, USA
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10
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Khan A, Riaz R, Ashraf S, Akilimali A. Revolutionary breakthrough: FDA approves Vyjuvek, the first topical gene therapy for dystrophic epidermolysis bullosa. Ann Med Surg (Lond) 2023; 85:6298-6301. [PMID: 38098548 PMCID: PMC10718329 DOI: 10.1097/ms9.0000000000001422] [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: 06/07/2023] [Accepted: 10/09/2023] [Indexed: 12/17/2023] Open
Abstract
This article provides an updated overview of Vyjuvek, a Food and Drug Administration (FDA) approved medication and its potential in managing dystrophic epidermolysis bullosa (DEB). DEB is a rare genetic disorder characterized by skin fragility, blistering, wounds, and scarring. The underlying cause of DEB is the impaired production of type VII collagen (COL7), leading to weakened anchoring fibrils in the skin. Vyjuvek is the first topical gene therapy for DEB, utilizing a genetically modified HSV-1 (herpes simplex virus 1) vector to express human COL7 and promote wound healing. Clinical trials have shown that Vyjuvek increases the probability of complete wound healing compared to placebo. Although further research is needed, Vyjuvek represents a significant advancement in addressing the unmet medical needs of patients with DEB, offering hope for improved quality of life and long-term complication reduction.
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Affiliation(s)
- Afsheen Khan
- Department of Internal Medicine, Dow University of Health Sciences, Karachi, Pakistan
| | - Rumaisa Riaz
- Department of Internal Medicine, Dow University of Health Sciences, Karachi, Pakistan
| | - Saad Ashraf
- Department of Internal Medicine, Dow University of Health Sciences, Karachi, Pakistan
| | - Aymar Akilimali
- Faculty of Medicine, Official University of Bukavu, Bukavu, Democratic Republic of the Congo
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11
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Chen W, Song X, Zhou Y. Multiple tiny blisters symmetrically distributed on the back, chest, and behind the ears. J Dtsch Dermatol Ges 2023; 21:1570-1573. [PMID: 37845020 DOI: 10.1111/ddg.15217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 07/21/2023] [Indexed: 10/18/2023]
Affiliation(s)
- Weiquan Chen
- Institute of Dermatology and Venereal diseases, Department of Dermatology and Venereal diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Xuan Song
- Institute of Dermatology and Venereal diseases, Department of Dermatology and Venereal diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Ying Zhou
- Institute of Dermatology and Venereal diseases, Department of Dermatology and Venereal diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
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12
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Chen W, Song X, Zhou Y. Multiple winzige, symmetrisch verteilte Bläschen auf dem Rücken, der Brust und hinter den Ohren. J Dtsch Dermatol Ges 2023; 21:1570-1573. [PMID: 38082523 DOI: 10.1111/ddg.15217_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 07/21/2023] [Indexed: 12/18/2023]
Affiliation(s)
- Weiquan Chen
- Institute of Dermatology and Venereal diseases, Department of Dermatology and Venereal diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Xuan Song
- Institute of Dermatology and Venereal diseases, Department of Dermatology and Venereal diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Ying Zhou
- Institute of Dermatology and Venereal diseases, Department of Dermatology and Venereal diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
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13
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Dolmatov IY, Nizhnichenko VA. Extracellular Matrix of Echinoderms. Mar Drugs 2023; 21:417. [PMID: 37504948 PMCID: PMC10381214 DOI: 10.3390/md21070417] [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: 06/09/2023] [Revised: 07/19/2023] [Accepted: 07/19/2023] [Indexed: 07/29/2023] Open
Abstract
This review considers available data on the composition of the extracellular matrix (ECM) in echinoderms. The connective tissue in these animals has a rather complex organization. It includes a wide range of structural ECM proteins, as well as various proteases and their inhibitors. Members of almost all major groups of collagens, various glycoproteins, and proteoglycans have been found in echinoderms. There are enzymes for the synthesis of structural proteins and their modification by polysaccharides. However, the ECM of echinoderms substantially differs from that of vertebrates by the lack of elastin, fibronectins, tenascins, and some other glycoproteins and proteoglycans. Echinoderms have a wide variety of proteinases, with serine, cysteine, aspartic, and metal peptidases identified among them. Their active centers have a typical structure and can break down various ECM molecules. Echinoderms are also distinguished by a wide range of proteinase inhibitors. The complex ECM structure and the variety of intermolecular interactions evidently explain the complexity of the mechanisms responsible for variations in the mechanical properties of connective tissue in echinoderms. These mechanisms probably depend not only on the number of cross-links between the molecules, but also on the composition of ECM and the properties of its proteins.
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Affiliation(s)
- Igor Yu Dolmatov
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Palchevsky 17, 690041 Vladivostok, Russia
| | - Vladimir A Nizhnichenko
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Palchevsky 17, 690041 Vladivostok, Russia
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14
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Park JYC, King A, Björk V, English BW, Fedintsev A, Ewald CY. Strategic outline of interventions targeting extracellular matrix for promoting healthy longevity. Am J Physiol Cell Physiol 2023; 325:C90-C128. [PMID: 37154490 DOI: 10.1152/ajpcell.00060.2023] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/28/2023] [Accepted: 04/28/2023] [Indexed: 05/10/2023]
Abstract
The extracellular matrix (ECM), composed of interlinked proteins outside of cells, is an important component of the human body that helps maintain tissue architecture and cellular homeostasis. As people age, the ECM undergoes changes that can lead to age-related morbidity and mortality. Despite its importance, ECM aging remains understudied in the field of geroscience. In this review, we discuss the core concepts of ECM integrity, outline the age-related challenges and subsequent pathologies and diseases, summarize diagnostic methods detecting a faulty ECM, and provide strategies targeting ECM homeostasis. To conceptualize this, we built a technology research tree to hierarchically visualize possible research sequences for studying ECM aging. This strategic framework will hopefully facilitate the development of future research on interventions to restore ECM integrity, which could potentially lead to the development of new drugs or therapeutic interventions promoting health during aging.
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Affiliation(s)
- Ji Young Cecilia Park
- Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach, Switzerland
| | - Aaron King
- Foresight Institute, San Francisco, California, United States
| | | | - Bradley W English
- Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States
| | | | - Collin Y Ewald
- Laboratory of Extracellular Matrix Regeneration, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zürich, Schwerzenbach, Switzerland
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15
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Niebergall-Roth E, Dieter K, Daniele C, Fluhr S, Khokhrina M, Silva I, Ganss C, Frank MH, Kluth MA. Kinetics of Wound Development and Healing Suggests a Skin-Stabilizing Effect of Allogeneic ABCB5 + Mesenchymal Stromal Cell Treatment in Recessive Dystrophic Epidermolysis Bullosa. Cells 2023; 12:1468. [PMID: 37296590 PMCID: PMC10252830 DOI: 10.3390/cells12111468] [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: 05/02/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
Recessive dystrophic epidermolysis (RDEB) is a rare, inherited, and currently incurable skin blistering disorder characterized by cyclically recurring wounds coexisting with chronic non-healing wounds. In a recent clinical trial, three intravenous infusions of skin-derived ABCB5+ mesenchymal stromal cells (MSCs) to 14 patients with RDEB improved the healing of wounds that were present at baseline. Since in RDEB even minor mechanical forces perpetually provoke the development of new or recurrent wounds, a post-hoc analysis of patient photographs was performed to specifically assess the effects of ABCB5+ MSCs on new or recurrent wounds by evaluating 174 wounds that occurred after baseline. During 12 weeks of systemic treatment with ABCB5+ MSCs, the number of newly occurring wounds declined. When compared to the previously reported healing responses of the wounds present at baseline, the newly occurring wounds healed faster, and a greater portion of healed wounds remained stably closed. These data suggest a previously undescribed skin-stabilizing effect of treatment with ABCB5+ MSCs and support repeated dosing of ABCB5+ MSCs in RDEB to continuously slow the wound development and accelerate the healing of new or recurrent wounds before they become infected or progress to a chronic, difficult-to-heal stage.
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Affiliation(s)
| | | | | | - Silvia Fluhr
- RHEACELL GmbH & Co. KG, 69120 Heidelberg, Germany
| | | | - Ines Silva
- RHEACELL GmbH & Co. KG, 69120 Heidelberg, Germany
| | | | - Markus H. Frank
- Department of Dermatology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA 02138, USA
- Transplant Research Program, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA
- School of Medical and Health Sciences, Edith Cowan University, Perth 6027, Australia
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16
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Vincent C, Lefort N, Hamlin M, Banal C, Hovnanian A, Izmiryan A. Generation and characterization of induced pluripotent stem cell lines from two patients with recessive dystrophic epidermolysis Bullosa. Stem Cell Res 2023; 69:103104. [PMID: 37148821 DOI: 10.1016/j.scr.2023.103104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/18/2023] [Accepted: 04/22/2023] [Indexed: 05/08/2023] Open
Abstract
Recessive Dystrophic Epidermolysis Bullosa (RDEB) is a rare and severe genetic disease responsible for blistering of the skin and mucosa caused by a wide variety of mutations in COL7A1 encoding type VII collagen. We have generated Induced Pluripotent Stem Cells (iPSCs) from two RDEB patients' fibroblasts harboring homozygous recurrent mutations in COL7A1. Their pluripotent state was confirmed by gene and protein expression of stem cell markers OCT4, SOX2, TRA1/60 and SSEA4. Embryoid body formation followed by immunostaining and TaqMan scorecard analysis confirmed the capacity of RDEB iPSCs to differentiate into cell types from the three germ layers in vitro.
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Affiliation(s)
- Camille Vincent
- INSERM UMR 1163 - Imagine Institute, Laboratory of Genetic Skin Diseases, Paris, France; University Paris Cité, Paris, France
| | - Nathalie Lefort
- iPSCs Core Facility, INSERM, UMR 1163, Imagine Institute, Paris, France
| | - Mathieu Hamlin
- iPSCs Core Facility, INSERM, UMR 1163, Imagine Institute, Paris, France
| | - Céline Banal
- iPSCs Core Facility, INSERM, UMR 1163, Imagine Institute, Paris, France
| | - Alain Hovnanian
- INSERM UMR 1163 - Imagine Institute, Laboratory of Genetic Skin Diseases, Paris, France; University Paris Cité, Paris, France; Depatment of Genetics, Necker Hospital for Sick Children, Paris, France
| | - Araksya Izmiryan
- INSERM UMR 1163 - Imagine Institute, Laboratory of Genetic Skin Diseases, Paris, France; University Paris Cité, Paris, France.
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17
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Kotalevskaya YY, Stepanov VA. Molecular genetic basis of epidermolysis bullosa. Vavilovskii Zhurnal Genet Selektsii 2023; 27:18-27. [PMID: 36923479 PMCID: PMC10009482 DOI: 10.18699/vjgb-23-04] [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: 10/17/2022] [Revised: 12/10/2022] [Accepted: 12/20/2022] [Indexed: 03/11/2023] Open
Abstract
Epidermolysis bullosa (EB) is an inherited disorder of skin fragility, caused by mutations in a large number of genes associated with skin integrity and dermal-epidermal adhesion. Skin fragility is manifested by a decrease in resistance to external mechanical influences, the clinical signs of which are the formation of blisters, erosions and wounds on the skin and mucous membranes. EB is a multisystemic disease and characterized by a wide phenotypic spectrum with extracutaneous complications in severe types, besides the skin and mucous membranes, with high mortality. More than 30 clinical subtypes have been identified, which are grouped into four main types: simplex EB, junctional EB, dystrophic EB and Kindler syndrome. To date, pathogenic variants in 16 different genes are associated with EB and encode proteins that are part of the skin anchoring structures or are signaling proteins. Genetic mutations cause dysfunction of cellular structures, differentiation, proliferation and apoptosis of cells, leading to mechanical instability of the skin. The formation of reduced proteins or decrease in their level leads mainly to functional disorders, forming mild or intermediate severe phenotypes. Absent protein expression is a result of null genetic variants and leads to structural abnormalities, causing a severe clinical phenotype. For most of the genes involved in the pathogenesis of EB, certain relationships have been established between the type and position of genetic variant and the severity of the clinical manifestations of the disease. Establishing an accurate diagnosis depends on the correlation of clinical, genealogical and immunohistological data in combination with molecular genetic testing. In general, the study of clinical, genetic and ultrastructural changes in EB has significantly expanded the understanding of the natural history of the disease and supplemented the data on genotype-phenotype correlations, promotes the search and study of epigenetic and non-genetic disease modifier factors, and also allows developing approaches to radical treatment of the disease. New advances of sequencing technologies have made it possible to describe new phenotypes and study their genetic and molecular mechanisms. This article describes the pathogenetic aspects and genes that cause main and rare syndromic subtypes of EB.
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Affiliation(s)
- Yu Yu Kotalevskaya
- Moscow Regional Research and Clinical Institute, Moscow, Russia Charitable Foundation "BELA. Butterfly Children", Moscow, Russia
| | - V A Stepanov
- Research Institute of Medical Genetics, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk, Russia
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18
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Huang SC, Chiu TM, Lee CY, Chang HC, Wu WJ, Gau SY. Researching trends in pemphigoid diseases: A bibliometric study of the top 100 most cited publications. Front Med (Lausanne) 2023; 9:1088083. [PMID: 36698818 PMCID: PMC9868262 DOI: 10.3389/fmed.2022.1088083] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 12/09/2022] [Indexed: 01/11/2023] Open
Abstract
Background In the field of autoimmune and inflammatory disorders, different approaches were applied to provide information regarding disease activity, comorbidities, epidemiological reports and risk factors. However, no previous studies had thoroughly analyzed the research trend in the field, and the bibliometric analysis focusing on pemphigoid diseases was available. The objective of the current study was to evaluate the current research trend in the field. Methods A search has been conducted for the Web of Science database based on various subcategories of pemphigoid diseases. Detailed information including articles' publication types, Author information, citation, and publication information was attained for further analysis. Results Within the 6,995 studies, the top 100 most-cited articles were extracted for analysis. Among the top 100 studies, 70% of the studies focused on bullous pemphigoid. More than 60% of the top 100 studies were studies with original data. Furthermore, 30% of the studies were guidelines and narrative reviews. For the issues primarily focused on, most of the high-impact studies described the molecular mechanism of pemphigoid diseases (26%), managements (19%), risk factors of pemphigoid diseases (17%). Additionally, some other studies provided general review or discussed about the issue of epidemiology, diagnosis/definition, comorbidities and clinical characteristics of pemphigoid diseases. Conclusion This comprehensive bibliographic study of pemphigoid diseases provided an overview of current research focuses in the field. Topics such as disease management, molecular mechanism of pathogenesis, and drug-inducing pemphigoid diseases were highly mentioned in the most-cited studies. For researchers and clinicians, the researching trend and study focus in the top-100 cited studies could serve as a potential reference for future investigation and patient management.
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Affiliation(s)
- Shih-Cheng Huang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Tsu-Man Chiu
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan,School of Medicine, Chung Shan Medical University, Taichung, Taiwan,Department of Dermatology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chien-Ying Lee
- Department of Pharmacology, Chung Shan Medical University, Taichung, Taiwan,Department of Pharmacy, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Hui-Chin Chang
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan,Library, Chung Shan Medical University Hospital, Taichung, Taiwan,Evidence-Based Medicine Center, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Wen-Jun Wu
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan,Department of Microbiology and Immunology, School of Medicine, Chung Shan Medical University, Taichung, Taiwan,Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan,*Correspondence: Wen-Jun Wu,
| | - Shuo-Yan Gau
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan,Shuo-Yan Gau,
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19
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Zhao X, Sun W, Cui Z, Yu M, Wang Q, Wang P, Tian R. COL7A1 Homozygous Arg2471Ter Mutation Leads to the Severe Phenotype of Autosomal Recessive Dystrophic Epidermolysis Bullosa in the Fetus. Mol Syndromol 2023; 13:511-516. [PMID: 36660025 PMCID: PMC9843557 DOI: 10.1159/000525047] [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: 09/17/2021] [Accepted: 05/11/2022] [Indexed: 01/22/2023] Open
Abstract
Introduction Autosomal recessive dystrophic epidermolysis bullosa (RDEB) is a rare disease with an early onset and severe phenotype. The pathogenic mechanism associated with mutations in the gene COL7A1 has been widely studied and many related cases have been reported, but prenatal cases are rare. Here, we report the prenatal diagnosis of a sporadic case of RDEB. Methods In this study, the fetus with abnormal skin manifestations, which were determined during a prenatal ultrasound, was evaluated based on the ultrasound and autopsy findings and the results of molecular diagnostic analyses. Samples of the fetus and the parents were subjected to trio whole-exome sequencing, and in vitro functional analyses were conducted to analyze the pathogenicity of the detected mutation. Results During the conventional prenatal ultrasound, the fetus showed abnormal epidermal lines on both lower limbs and the plantar skin as well as an interruption of the continuity of the lateral epidermal line below the ankle of the right lower limb. Gene testing revealed a homozygous nonsense mutation in COL7A1 (c.7411C>T, p.Arg2471Ter), which gave rise to RDEB in the fetus. Further, the results of the in vitro functional experiments confirmed that the mutation might lead to protein degradation. Conclusion Most prenatal diagnoses of RDEB are the result of targeted molecular analyses carried out based on family history, and prenatal ultrasound reports of severe RDEB phenotypes are extremely rare. Our case suggests that the observation of abnormal epidermal lines should be given due consideration during prenatal diagnosis, as they may be a sign of possible epidermolysis bullosa.
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Affiliation(s)
- Xuliang Zhao
- Department of Clinical Laboratory, The No. 901 Hospital of the Joint Service of the People's Liberation Army, Hefei, China,Department of Obstetrics and Gynecology, Reproductive Medicine Center, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Weiwei Sun
- Beijing Chigene Translational Medicine Research Center, Beijing, China
| | - Zhihui Cui
- Department of Obstetrics and Gynecology, The No. 901 Hospital of the Joint Service of the People's Liberation Army, Hefei, China
| | - Min Yu
- Department of Obstetrics and Gynecology, The No. 901 Hospital of the Joint Service of the People's Liberation Army, Hefei, China
| | - Qi Wang
- Department of Pathology, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, China
| | - Pengcheng Wang
- Department of Clinical Laboratory, The No. 901 Hospital of the Joint Service of the People's Liberation Army, Hefei, China
| | - Ruixia Tian
- Department of Obstetrics and Gynecology, The No. 901 Hospital of the Joint Service of the People's Liberation Army, Hefei, China,*Ruixia Tian,
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20
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Zinc and Zinc Transporters in Dermatology. Int J Mol Sci 2022; 23:ijms232416165. [PMID: 36555806 PMCID: PMC9785331 DOI: 10.3390/ijms232416165] [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: 11/08/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Zinc is an important trace mineral in the human body and a daily intake of zinc is required to maintain a healthy status. Over the past decades, zinc has been used in formulating topical and systemic therapies for various skin disorders owing to its wound healing and antimicrobial properties. Zinc transporters play a major role in maintaining the integrity of the integumentary system by controlling zinc homeostasis within dermal layers. Mutations and abnormal function of zinc-transporting proteins can lead to disease development, such as spondylocheirodysplastic Ehlers-Danlos syndrome (SCD-EDS) and acrodermatitis enteropathica (AE) which can be fatal if left untreated. This review discusses the layers of the skin, the importance of zinc and zinc transporters in each layer, and the various skin disorders caused by zinc deficiency, in addition to zinc-containing compounds used for treating different skin disorders and skin protection.
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21
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Kalmari A, Heydari M, Hosseinzadeh Colagar A, Arash V. In Silico Analysis of Collagens Missense SNPs and Human Abnormalities. Biochem Genet 2022; 60:1630-1656. [PMID: 35066702 DOI: 10.1007/s10528-021-10172-6] [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: 07/15/2021] [Accepted: 12/06/2021] [Indexed: 11/02/2022]
Abstract
Collagens are the most abundant proteins in the extra cellular matrix/ECM of human tissues that are encoded by different genes. There are single nucleotide polymorphisms/SNPs which are considered as the most useful biomarkers for some disease diagnosis or prognosis. The aim of this study is screening and identifying the functional missense SNPs of human ECM-collagens and investigating their correlation with human abnormalities. All of the missense SNPs were retrieved from the NCBI SNP database and screened for a global frequency of more than 0.1. Seventy missense SNPs that met the screening criteria were characterized for functional and stability impact using six and three protein analysis tools, respectively. Next, HOPE and geneMANIA analysis tools were used to show the effect of SNPs on three-dimensional structure (3D) and physical interaction of proteins. Results showed that 13 missense SNPs (rs2070739, rs28381984, rs13424243, rs1800517, rs73868680, rs12488457, rs1353613, rs59021909, rs9830253, rs2228547, rs3753841, rs2855430, and rs970547), which are in nine different collagen genes, affect the structure and function of different collagen proteins. Among these polymorphisms, COL4A3-rs13424243 and COL6A6-rs59021909 were predicted as the most effective ones. On the other hand, designed mutated and native 3D of rs13424243 variant illustrated that it can disturb the protein motifs. Also, geneMANIA predicted that COL4A3 and COL6A6 are interacting with some proteins including: DDR1, COL6A1, COL11A2 and so on. Based on our findings, ECM-collagens functional SNPs are important and may be considered as a risk factor or molecular marker for human disorders in the future studies.
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Affiliation(s)
- Amin Kalmari
- Department of Molecular and Cell Biology, Faculty of Science, University of Mazandaran, 47416-95447, Babolsar, Mazandaran, Iran
| | - Mohammadkazem Heydari
- Department of Molecular and Cell Biology, Faculty of Science, University of Mazandaran, 47416-95447, Babolsar, Mazandaran, Iran
| | - Abasalt Hosseinzadeh Colagar
- Department of Molecular and Cell Biology, Faculty of Science, University of Mazandaran, 47416-95447, Babolsar, Mazandaran, Iran.
| | - Valiollah Arash
- Department of Orthodontics, Dental School, Babol University of Medical Sciences, Babol, Iran
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22
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Lim JH, Bae JS, Lee SK, Lee DH. Palmitoyl‑RGD promotes the expression of dermal‑epidermal junction components in HaCaT cells. Mol Med Rep 2022; 26:320. [PMID: 36043531 DOI: 10.3892/mmr.2022.12836] [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: 03/18/2022] [Accepted: 07/14/2022] [Indexed: 11/06/2022] Open
Abstract
With age, the dermal‑epidermal junction (DEJ) becomes thinner and production of its protein components decreases; this may be associated with increased fragility and wrinkling of skin. Topical treatment with palmitoyl‑Arg‑Gly‑Asp (PAL‑RGD) improves facial wrinkles, skin elasticity and dermal density in humans. In the present study, the effect of PAL‑RGD on expression of DEJ components, such as laminin and collagen, was assessed. Human HaCaT keratinocytes were treated with PAL‑RGD. The protein expression levels of laminin‑332, collagen IV and collagen XVII were examined by western blotting. Reverse transcription-quantitative PCR was used to analyze laminin subunit (LAM)A3, LAMB3, LAMC2, collagen type IV α 1 chain (COL4A1) and COL17A1 mRNA expression levels. Western blot analysis showed that the expression levels of proteins comprising the DEJ, including laminin α3, β3 and γ2 and collagen IV and XVII demonstrated a significant dose‑dependent increase following PAL‑RGD treatment. Furthermore, PAL‑RGD treatment significantly enhanced LAMA3, LAMB3, LAMC2, COL4A1 and COL17A1 mRNA expression levels. PAL‑RGD may enhance the DEJ by inducing the expression of laminin‑332, collagen IV and collagen XVII.
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Affiliation(s)
- Joo Hyuck Lim
- Biotechnology Research Institute, Research and Development Division, Celltrion Inc., Incheon 22014, Republic of Korea
| | - Jung Soo Bae
- Biotechnology Research Institute, Research and Development Division, Celltrion Inc., Incheon 22014, Republic of Korea
| | - Seung Ki Lee
- Biotechnology Research Institute, Research and Development Division, Celltrion Inc., Incheon 22014, Republic of Korea
| | - Dong Hun Lee
- Department of Dermatology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul National University, Seoul 03080, Republic of Korea
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23
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Assan F, Crichi B, Villiers S, Bagot M, Bourrat E. Use of central venous catheters in recessive dystrophic epidermolysis bullosa and risk of catheter-related thrombosis: a retrospective cohort study. J Eur Acad Dermatol Venereol 2022; 36:e936-e938. [PMID: 35771086 DOI: 10.1111/jdv.18385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Florence Assan
- Université de Paris, Hôpital Saint-Louis, Service de Dermatologie-Vénérologie, AP-HP, Paris, France
| | - Benjamin Crichi
- Université de Paris, Hôpital Saint-Louis, Service de Médecine Interne, Unité des maladies auto-immunes et vasculaires, AP-HP, Paris, France
| | - Stéphane Villiers
- Université de Paris, Hôpital Saint-Louis, Service d'Anesthésie-Réanimation, AP-HP, Paris, France
| | - Martine Bagot
- Université de Paris, Hôpital Saint-Louis, Service de Dermatologie-Vénérologie, AP-HP, Paris, France
| | - Emmanuelle Bourrat
- Université de Paris, Hôpital Saint-Louis, Service de Dermatologie-Vénérologie, AP-HP, Paris, France.,Centre de référence maladies rares dermatologiques à expression cutanée MAGEC Paris Nord, Hôpital Saint-Louis
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24
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Ramovs V, Janssen H, Fuentes I, Pitaval A, Rachidi W, Chuva de Sousa Lopes SM, Freund C, Gidrol X, Mummery CL, Raymond K. Characterization of the epidermal-dermal junction in hiPSC-derived skin organoids. Stem Cell Reports 2022; 17:1279-1288. [PMID: 35561682 PMCID: PMC9213820 DOI: 10.1016/j.stemcr.2022.04.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 04/11/2022] [Accepted: 04/13/2022] [Indexed: 12/31/2022] Open
Abstract
Human induced pluripotent stem cell (hiPSC)-derived hair-bearing skin organoids offer exciting new possibilities for modeling diseases like epidermolysis bullosa (EB). These inherited diseases affect 1 in 30,000 people worldwide and result from perturbed expression and/or structure of components of the epidermal-dermal junction (EDJ). To establish whether hiPSC-derived skin organoids might be able to capture salient features of EB, it is thus important to characterize their EDJ. Here, we report successful generation of hair-bearing skin organoids from two hiPSC lines that exhibited fully stratified interfollicular epidermis. Using immunofluorescence and electron microscopy, we showed that basal keratinocytes in organoids adhere to laminin-332 and type IV collagen-rich basement membrane via type I hemidesmosomes and integrin β1-based adhesion complexes. Importantly, we demonstrated that EDJs in organoids are almost devoid of type VII collagen, a fibril that mediates anchorage of the epidermis to dermis. This should be considered when using skin organoids for EB modeling. Hair-bearing skin organoids form a stratified interfollicular epidermis in vitro Organoid keratinocytes form type I hemidesmosomes and integrin β1-based complexes Basement membrane in skin organoids is rich in laminin-332 and type IV collagen Low levels of type VII collagen in organoids may be limiting for disease modeling
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Affiliation(s)
- Veronika Ramovs
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, the Netherlands
| | - Hans Janssen
- Electron Microscopy Facility, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Ignacia Fuentes
- Fundación DEBRA Chile, Santiago, Chile; Centro de Genética y Genómica, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - Amandine Pitaval
- University of Grenoble Alpes, CEA, INSERM, IRIG-BIOMICS, Grenoble, France
| | - Walid Rachidi
- University of Grenoble Alpes, CEA, INSERM, IRIG-BIOMICS, Grenoble, France
| | - Susana M Chuva de Sousa Lopes
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, the Netherlands; Ghent Fertility and Stem Cell Team (G-FaST), Department for Reproductive Medicine, Ghent University Hospital, Ghent, Belgium
| | - Christian Freund
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, the Netherlands; LUMC hiPSC Hotel, Leiden University Medical Center, Leiden, the Netherlands
| | - Xavier Gidrol
- University of Grenoble Alpes, CEA, INSERM, IRIG-BIOMICS, Grenoble, France
| | - Christine L Mummery
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, the Netherlands; LUMC hiPSC Hotel, Leiden University Medical Center, Leiden, the Netherlands
| | - Karine Raymond
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, the Netherlands; LUMC hiPSC Hotel, Leiden University Medical Center, Leiden, the Netherlands; University of Grenoble Alpes, CEA, INSERM, IRIG-BIOMICS, Grenoble, France.
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25
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Miyazaki A, Takeichi T, Takeuchi S, Taki T, Muro Y, Akiyama M. Extremely mild dominant dystrophic epidermolysis bullosa: Genotype information from whole-exome sequencing of salivary gDNA predicts disease severity. J Dermatol 2022; 49:e276-e277. [PMID: 35451103 DOI: 10.1111/1346-8138.16402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/24/2022] [Accepted: 04/04/2022] [Indexed: 12/01/2022]
Affiliation(s)
- Akira Miyazaki
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takuya Takeichi
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - So Takeuchi
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomoki Taki
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshinao Muro
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masashi Akiyama
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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26
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Harvey N, Youssefian L, Saeidian AH, Vahidnezhad H, Uitto J. Pathomechanisms of epidermolysis bullosa: Beyond structural proteins. Matrix Biol 2022; 110:91-105. [DOI: 10.1016/j.matbio.2022.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 04/12/2022] [Accepted: 04/28/2022] [Indexed: 10/18/2022]
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Pongmee P, Wittayakornrerk S, Lekwuttikarn R, Pakdeeto S, Watcharakuldilok P, Prempunpong C, Tim-Aroon T, Puttanapitak C, Wattanasoontornsakul P, Junhasavasdikul T, Wongkittichote P, Noojarern S, Wattanasirichaigoon D. Epidermolysis Bullosa With Congenital Absence of Skin: Congenital Corneal Cloudiness and Esophagogastric Obstruction Including Extended Genotypic Spectrum of PLEC, LAMC2, ITGB4 and COL7A1. Front Genet 2022; 13:847150. [PMID: 35432467 PMCID: PMC9010945 DOI: 10.3389/fgene.2022.847150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 02/23/2022] [Indexed: 11/13/2022] Open
Abstract
Epidermolysis bullosa (EB) is a rare and genetically heterogeneous disorder characterized by skin fragility and blister formation occurring spontaneously or after minor trauma. EB is accompanied by congenital absence of skin (EB with CAS) in some patients. Pathogenic variants of COL7A1 are responsible for EB with CAS in the vast majority of cases. Type and subtype diagnosis of EB with CAS generally requires specific immunohistological examinations that are not widely available plus targeted gene analysis. The present study aimed to determine the clinical features of five patients affected by EB with CAS and to identify the underlying genetic defects using whole exome sequencing (WES) followed by focused analysis of the target genes. Four patients had generalized skin involvement and one had localized defects. Two patients exhibited extremely severe skin manifestations and congenital cloudy cornea along with pyloric atresia, and one had partial esophagogastric obstruction and anuria due to vesicoureteric obstruction. In the WES analysis, the average coverage of the target exons was 99.05% (726 of 733 exons), with a range of 96.4–100% for individual genes. We identified four novel and two known pathogenic/likely pathogenic variants of five distinct genes in the examined families: PLEC:c.2536G > T (p.Glu846Ter); LAMC2:c.3385C > T (p.Arg1129Ter); KRT5:c.429G > A (p.Glu477Lys); ITGB4:c.794dupC (p.Ala266SerfsTer5); COL7A1:c.5440C > T (p.Arg1814Cys); and COL7A1:c.6103delG. All alleles were inherited from the parents, except for the KRT5 variant as a de novo finding. The findings reveal extremely rare phenotypes found in EB with CAS, namely congenital cloudy cornea, esophagogastric obstruction, and anuria, and extend the genotypic spectrum of EB-related genes. The data confirm that WES provides very high coverage of coding exons/genes and support its use as a reasonable alternative method for diagnosis of EB. The present data from an underrepresented population in Southeast Asia could further broaden the knowledge and research on EB.
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Affiliation(s)
- Pharuhad Pongmee
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Sanchawan Wittayakornrerk
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Ramrada Lekwuttikarn
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Sasikarn Pakdeeto
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakan, Thailand
| | | | - Chatchay Prempunpong
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Thipwimol Tim-Aroon
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Chawintee Puttanapitak
- Department of Surgery, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | | | - Thitiporn Junhasavasdikul
- Department of Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Parith Wongkittichote
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
- Division of Genetics and Genomic Medicine, Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, United States
| | - Saisuda Noojarern
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Duangrurdee Wattanasirichaigoon
- Department of Pediatrics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
- *Correspondence: Duangrurdee Wattanasirichaigoon,
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Picker J, Lan Z, Arora S, Green M, Hahn M, Cosgriff-Hernandez E, Hook M. Prokaryotic Collagen-Like Proteins as Novel Biomaterials. Front Bioeng Biotechnol 2022; 10:840939. [PMID: 35372322 PMCID: PMC8968730 DOI: 10.3389/fbioe.2022.840939] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 02/10/2022] [Indexed: 12/13/2022] Open
Abstract
Collagens are the major structural component in animal extracellular matrices and are critical signaling molecules in various cell-matrix interactions. Its unique triple helical structure is enabled by tripeptide Gly-X-Y repeats. Understanding of sequence requirements for animal-derived collagen led to the discovery of prokaryotic collagen-like protein in the early 2000s. These prokaryotic collagen-like proteins are structurally similar to mammalian collagens in many ways. However, unlike the challenges associated with recombinant expression of mammalian collagens, these prokaryotic collagen-like proteins can be readily expressed in E. coli and are amenable to genetic modification. In this review article, we will first discuss the properties of mammalian collagen and provide a comparative analysis of mammalian collagen and prokaryotic collagen-like proteins. We will then review the use of prokaryotic collagen-like proteins to both study the biology of conventional collagen and develop a new biomaterial platform. Finally, we will describe the application of Scl2 protein, a streptococcal collagen-like protein, in thromboresistant coating for cardiovascular devices, scaffolds for bone regeneration, chronic wound dressing and matrices for cartilage regeneration.
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Affiliation(s)
- Jonathan Picker
- Center for Infectious and Inflammatory Diseases, Institute of Biosciences and Technology, Texas A&M, Houston, TX, United States
| | - Ziyang Lan
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, United States
| | - Srishtee Arora
- Center for Infectious and Inflammatory Diseases, Institute of Biosciences and Technology, Texas A&M, Houston, TX, United States
| | - Mykel Green
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, United States
| | - Mariah Hahn
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY, United States
| | | | - Magnus Hook
- Center for Infectious and Inflammatory Diseases, Institute of Biosciences and Technology, Texas A&M, Houston, TX, United States
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Somatic mutations in collagens are associated with a distinct tumor environment and overall survival in gastric cancer. BMC Cancer 2022; 22:139. [PMID: 35120467 PMCID: PMC8815231 DOI: 10.1186/s12885-021-09136-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 12/22/2021] [Indexed: 12/11/2022] Open
Abstract
Background Gastric cancer is a heterogeneous disease with poorly understood genetic and microenvironmental factors. Mutations in collagen genes are associated with genetic diseases that compromise tissue integrity, but their role in tumor progression has not been extensively reported. Aberrant collagen expression has been long associated with malignant tumor growth, invasion, chemoresistance, and patient outcomes. We hypothesized that somatic mutations in collagens could functionally alter the tumor extracellular matrix. Methods We used publicly available datasets including The Tumor Cancer Genome Atlas (TCGA) to interrogate somatic mutations in collagens in stomach adenocarcinomas. To demonstrate that collagens were significantly mutated above background mutation rates, we used a moderated Kolmogorov-Smirnov test along with combination analysis with a bootstrap approach to define the background accounting for mutation rates. Association between mutations and clinicopathological features was evaluated by Fisher or chi-squared tests. Association with overall survival was assessed by Kaplan-Meier and the Cox-Proportional Hazards Model. Gene Set Enrichment Analysis was used to interrogate pathways. Immunohistochemistry and in situ hybridization tested expression of COL7A1 in stomach tumors. Results In stomach adenocarcinomas, we identified individual collagen genes and sets of collagen genes harboring somatic mutations at a high frequency compared to background in both microsatellite stable, and microsatellite instable tumors in TCGA. Many of the missense mutations resemble the same types of loss of function mutations in collagenopathies that disrupt tissue formation and destabilize cells providing guidance to interpret the somatic mutations. We identified combinations of somatic mutations in collagens associated with overall survival, with a distinctive tumor microenvironment marked by lower matrisome expression and immune cell signatures. Truncation mutations were strongly associated with improved outcomes suggesting that loss of expression of secreted collagens impact tumor progression and treatment response. Germline collagenopathy variants guided interpretation of impactful somatic mutations on tumors. Conclusions These observations highlight that many collagens, expressed in non-physiologically relevant conditions in tumors, harbor impactful somatic mutations in tumors, suggesting new approaches for classification and therapy development in stomach cancer. In sum, these findings demonstrate how classification of tumors by collagen mutations identified strong links between specific genotypes and the tumor environment. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-09136-1.
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Mayr E, Ablinger M, Lettner T, Murauer EM, Guttmann-Gruber C, Piñón Hofbauer J, Hainzl S, Kaiser M, Klausegger A, Bauer JW, Koller U, Wally V. 5'RNA Trans-Splicing Repair of COL7A1 Mutant Transcripts in Epidermolysis Bullosa. Int J Mol Sci 2022; 23:ijms23031732. [PMID: 35163654 PMCID: PMC8835740 DOI: 10.3390/ijms23031732] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/28/2022] [Accepted: 01/31/2022] [Indexed: 12/30/2022] Open
Abstract
Mutations within the COL7A1 gene underlie the inherited recessive subtype of the blistering skin disease dystrophic epidermolysis bullosa (RDEB). Although gene replacement approaches for genodermatoses are clinically advanced, their implementation for RDEB is challenging and requires endogenous regulation of transgene expression. Thus, we are using spliceosome-mediated RNA trans-splicing (SMaRT) to repair mutations in COL7A1 at the mRNA level. Here, we demonstrate the capability of a COL7A1-specific RNA trans-splicing molecule (RTM), initially selected using a fluorescence-based screening procedure, to accurately replace COL7A1 exons 1 to 64 in an endogenous setting. Retroviral RTM transduction into patient-derived, immortalized keratinocytes resulted in an increase in wild-type transcript and protein levels, respectively. Furthermore, we revealed accurate deposition of recovered type VII collagen protein within the basement membrane zone of expanded skin equivalents using immunofluorescence staining. In summary, we showed for the first time the potential of endogenous 5′ trans-splicing to correct pathogenic mutations within the COL7A1 gene. Therefore, we consider 5′ RNA trans-splicing a suitable tool to beneficially modulate the RDEB-phenotype, thus targeting an urgent need of this patient population.
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Affiliation(s)
- Elisabeth Mayr
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria
| | - Michael Ablinger
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria
| | - Thomas Lettner
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria
| | - Eva M Murauer
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria
| | - Christina Guttmann-Gruber
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria
| | - Josefina Piñón Hofbauer
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria
| | - Stefan Hainzl
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria
| | - Manfred Kaiser
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria
| | - Alfred Klausegger
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria
| | - Johann W Bauer
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria
- Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria
| | - Ulrich Koller
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria
| | - Verena Wally
- EB House Austria, Research Program for Molecular Therapy of Genodermatoses, Department of Dermatology and Allergology, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria
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31
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Yu L, Huang G, Lu Z, Wang J, Gu W, Li J, Mao J. Glomerular IgA Deposition and Serum Antineutrophil Cytoplasmic Antibody Positivity in a Child With Dystrophic Epidermolysis Bullosa: Case Report and Literature Review. Front Pediatr 2022; 10:939069. [PMID: 35899130 PMCID: PMC9309483 DOI: 10.3389/fped.2022.939069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 06/15/2022] [Indexed: 11/13/2022] Open
Abstract
Patients with epidermolysis bullosa (EB) could develop significant urological complications, such as hydroureteronephrosis, renal amyloidosis and IgA nephropathy (IgAN). Here, we presented a 12-year-old boy carrying pathogenic COL7A1 mutation with diagnosis of dystrophic epidermolysis bullosa (DEB). The patient had concomitant gross hematuria and proteinuria. Pathological examinations and immunostaining of renal biopsy showed glomeruli with mesangial hypercellularity and deposition of IgA, which were indicative of IgAN. Interestingly, serological evaluation showed antineutrophil cytoplasmic antibody (ANCA) directed against myeloperoxidase and proteinase 3. Treatment with glucocorticoid, immunosuppressants, angiotensin-converting enzyme inhibitor and antibiotics efficiently improved hemato-proteinuria, and ANCAs became negative as well. This case of DEB presented a unique collection of clinical manifestations and pathological alterations. IgAN and serum positive ANCA were possibly associated with sustained infection secondary to DEB, and can be managed by empirical treatment for primary IgAN.
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Affiliation(s)
- Ling Yu
- Department of Nephrology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Guoping Huang
- Department of Nephrology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Zhihong Lu
- Department of Nephrology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Jingjing Wang
- Department of Nephrology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Weizhong Gu
- Department of Pathology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Junping Li
- Department of Pathology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Jianhua Mao
- Department of Nephrology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
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32
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Subramaniam KS, Antoniou MN, McGrath JA, Lwin SM. The potential of gene therapy for recessive dystrophic epidermolysis bullosa. Br J Dermatol 2021; 186:609-619. [PMID: 34862606 DOI: 10.1111/bjd.20910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 11/12/2021] [Accepted: 11/28/2021] [Indexed: 11/30/2022]
Abstract
Epidermolysis bullosa (EB) encompasses a heterogeneous group of inherited skin fragility disorders with mutations in genes encoding the basement membrane zone (BMZ) proteins that normally ensure dermal-epidermal integrity. Of the four main EB types, recessive dystrophic EB (RDEB), especially the severe variant, represents one of the most debilitating clinical entities with recurrent mucocutaneous blistering and ulceration leading to chronic wounds, infections, inflammation, scarring and ultimately cutaneous squamous cell carcinoma, which leads to premature death. Improved understanding of the molecular genetics of EB over the past three decades and advances in biotechnology has led to rapid progress in developing gene and cell-based regenerative therapies for EB. In particular, RDEB is at the vanguard of advances in human clinical trials of advanced therapeutics. Furthermore, the past decade has witnessed the emergence of a real collective, global effort involving academia and industry, supported by international EB patient organisations such as the Dystrophic Epidermolysis Bullosa Research Association (DEBRA), amongst others, to develop clinically relevant and marketable targeted therapeutics for EB. Thus, there is an increasing need for the practising dermatologist to become familiar with the concept of gene therapy, fundamental differences between various approaches and their human applications. This review explains the principles of different approaches of gene therapy; summarises its journey and discusses its current and future impact in RDEB.
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Affiliation(s)
- K S Subramaniam
- Genetic Skin Diseases Group, St John's Institute of Dermatology, King's College London, Guy's Hospital, London, UK
| | - M N Antoniou
- Gene Expression and Therapy Group, Department of Medical & Molecular Genetics, King's College London, Guy's Hospital, London, UK
| | - J A McGrath
- Genetic Skin Diseases Group, St John's Institute of Dermatology, King's College London, Guy's Hospital, London, UK
| | - S M Lwin
- Genetic Skin Diseases Group, St John's Institute of Dermatology, King's College London, Guy's Hospital, London, UK
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Valdoz JC, Johnson BC, Jacobs DJ, Franks NA, Dodson EL, Sanders C, Cribbs CG, Van Ry PM. The ECM: To Scaffold, or Not to Scaffold, That Is the Question. Int J Mol Sci 2021; 22:12690. [PMID: 34884495 PMCID: PMC8657545 DOI: 10.3390/ijms222312690] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 12/14/2022] Open
Abstract
The extracellular matrix (ECM) has pleiotropic effects, ranging from cell adhesion to cell survival. In tissue engineering, the use of ECM and ECM-like scaffolds has separated the field into two distinct areas-scaffold-based and scaffold-free. Scaffold-free techniques are used in creating reproducible cell aggregates which have massive potential for high-throughput, reproducible drug screening and disease modeling. Though, the lack of ECM prevents certain cells from surviving and proliferating. Thus, tissue engineers use scaffolds to mimic the native ECM and produce organotypic models which show more reliability in disease modeling. However, scaffold-based techniques come at a trade-off of reproducibility and throughput. To bridge the tissue engineering dichotomy, we posit that finding novel ways to incorporate the ECM in scaffold-free cultures can synergize these two disparate techniques.
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Affiliation(s)
| | | | | | | | | | | | | | - Pam M. Van Ry
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, USA; (J.C.V.); (B.C.J.); (D.J.J.); (N.A.F.); (E.L.D.); (C.S.); (C.G.C.)
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Popp CM, Miller WC, Eide CR, Tolar J. Future applications of 3D bioprinting: A promising technology for treating recessive dystrophic epidermolysis bullosa. Exp Dermatol 2021; 31:384-392. [PMID: 34699623 DOI: 10.1111/exd.14484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 10/05/2021] [Accepted: 10/24/2021] [Indexed: 02/06/2023]
Abstract
Three-dimensional (3D) bioprinting is a rapidly developing technology that has the potential to initiate a paradigm shift in the treatment of skin wounds arising from burns, ulcers and genodermatoses. Recessive dystrophic epidermolysis bullosa (RDEB), a severe form of epidermolysis bullosa, is a rare genodermatosis that results in mechanically induced blistering of epithelial tissues that leads to chronic wounds. Currently, there is no cure for RDEB, and effective treatment is limited to protection from trauma and extensive bandaging. The care of chronic wounds and burns significantly burdens the healthcare system, further illustrating the dire need for more beneficial wound care. However, in its infancy, 3D bioprinting offers therapeutic potential for wound healing and could be a breakthrough technology for the treatment of rare, incurable genodermatoses like RDEB. This viewpoint essay outlines the promise of 3D bioprinting applications for treating RDEB, including skin regeneration, a delivery system for gene-edited cells and small molecules, and disease modelling. Although the future of 3D bioprinting is encouraging, there are many technical challenges to overcome-including optimizing bioink and cell source-before this approach can be widely implemented in clinical practice.
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Affiliation(s)
- Courtney M Popp
- Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - William C Miller
- Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - Cindy R Eide
- Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - Jakub Tolar
- Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, Minnesota, USA.,Stem Cell Institute, University of Minnesota, Minneapolis, Minnesota, USA
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35
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Nyström A, Bruckner-Tuderman L, Kiritsi D. Dystrophic Epidermolysis Bullosa: Secondary Disease Mechanisms and Disease Modifiers. Front Genet 2021; 12:737272. [PMID: 34650598 PMCID: PMC8505774 DOI: 10.3389/fgene.2021.737272] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 08/25/2021] [Indexed: 12/30/2022] Open
Abstract
The phenotypic presentation of monogenetic diseases is determined not only by the nature of the causative mutations but also is influenced by manifold cellular, microenvironmental, and external factors. Here, heritable extracellular matrix diseases, including dystrophic epidermolysis bullosa (DEB), are no exceptions. Dystrophic epidermolysis bullosa is caused by mutations in the COL7A1 gene encoding collagen VII. Deficiency of collagen VII leads to skin and mucosal fragility, which progresses from skin blistering to severe fibrosis and cancer. Clinical and pre-clinical studies suggest that targeting of secondary disease mechanisms or employment of natural disease modifiers can alleviate DEB severity and progression. However, since many of these mechanisms are needed for tissue homeostasis, informed, selective targeting is essential for safe and efficacious treatment. Here, we discuss a selection of key disease modifiers and modifying processes active in DEB, summarize the still scattered knowledge of them, and reflect on ways forward toward their utilization for symptom-relief or enhancement of curative therapies.
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Affiliation(s)
- Alexander Nyström
- Department of Dermatology, Medical Faculty, Medical Center - University of Freiburg, Freiburg, Germany.,Freiburg Institute for Advanced Studies, Freiburg, Germany
| | - Leena Bruckner-Tuderman
- Department of Dermatology, Medical Faculty, Medical Center - University of Freiburg, Freiburg, Germany
| | - Dimitra Kiritsi
- Department of Dermatology, Medical Faculty, Medical Center - University of Freiburg, Freiburg, Germany
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36
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Gretzmeier C, Pin D, Kern JS, Chen M, Woodley DT, Bruckner-Tuderman L, de Souza MP, Nyström A. Systemic Collagen VII Replacement Therapy for Advanced Recessive Dystrophic Epidermolysis Bullosa. J Invest Dermatol 2021; 142:1094-1102.e3. [PMID: 34606885 DOI: 10.1016/j.jid.2021.09.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/24/2021] [Accepted: 09/06/2021] [Indexed: 12/22/2022]
Abstract
Recessive dystrophic epidermolysis bullosa (RDEB) is a genetic skin blistering disease associated with progressive multiorgan fibrosis. RDEB is caused by biallelic mutations in COL7A1 encoding the extracellular matrix protein collagen VII (C7), which is necessary for epidermal‒dermal adherence. C7 is not simply a structural protein but also has multiple functions, including the regulation of TGFβ bioavailability and the inhibition of skin scarring. Intravenous (IV) administration of recombinant C7 (rC7) rescues C7-deficient mice from neonatal lethality. However, the effect on established RDEB has not been determined. In this study, we used small and large adult RDEB animal models to investigate the disease-modulating abilities of IV rC7 on established RDEB. In adult RDEB mice, rC7 accumulated at the basement membrane zone in multiple organs after a single infusion. Fortnightly IV injections of rC7 for 7 weeks in adult RDEB mice reduced fibrosis of skin and eye. The fibrosis-delaying effect was associated with a reduction of TGFβ signaling. IV rC7 in adult RDEB dogs incorporated in the dermal‒epidermal junction of skin and improved disease by promoting wound healing and reducing dermal‒epidermal separation. In both species, IV C7 was well-tolerated. These preclinical studies suggest that repeated IV administration of rC7 is an option for systemic treatment of established adult RDEB.
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Affiliation(s)
- Christine Gretzmeier
- Department of Dermatology, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | - Didier Pin
- UPSP 2016.A104, VetAgro Sup, Univeristy of Lyon, Marcy l'Étoile, France
| | - Johannes S Kern
- Department of Dermatology, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany; Dermatology Department, Faculty of Medicine, Dentistry and Health Sciences, The Royal Melbourne Hospital, The University of Melbourne, Parkville, Australia
| | - Mei Chen
- Department of Dermatology, Keck School of Medicine of USC, University of Southern California, Los Angeles, California, USA
| | - David T Woodley
- Department of Dermatology, Keck School of Medicine of USC, University of Southern California, Los Angeles, California, USA
| | - Leena Bruckner-Tuderman
- Department of Dermatology, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | | | - Alexander Nyström
- Department of Dermatology, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany; Freiburg Institute for Advanced Studies (FRIAS), University of Freiburg, Freiburg, Germany.
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Tonti OR, Larson H, Lipp SN, Luetkemeyer CM, Makam M, Vargas D, Wilcox SM, Calve S. Tissue-specific parameters for the design of ECM-mimetic biomaterials. Acta Biomater 2021; 132:83-102. [PMID: 33878474 PMCID: PMC8434955 DOI: 10.1016/j.actbio.2021.04.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 03/18/2021] [Accepted: 04/08/2021] [Indexed: 02/06/2023]
Abstract
The extracellular matrix (ECM) is a complex network of biomolecules that mechanically and biochemically directs cell behavior and is crucial for maintaining tissue function and health. The heterogeneous organization and composition of the ECM varies within and between tissue types, directing mechanics, aiding in cell-cell communication, and facilitating tissue assembly and reassembly during development, injury and disease. As technologies like 3D printing rapidly advance, researchers are better able to recapitulate in vivo tissue properties in vitro; however, tissue-specific variations in ECM composition and organization are not given enough consideration. This is in part due to a lack of information regarding how the ECM of many tissues varies in both homeostatic and diseased states. To address this gap, we describe the components and organization of the ECM, and provide examples for different tissues at various states of disease. While many aspects of ECM biology remain unknown, our goal is to highlight the complexity of various tissues and inspire engineers to incorporate unique components of the native ECM into in vitro platform design and fabrication. Ultimately, we anticipate that the use of biomaterials that incorporate key tissue-specific ECM will lead to in vitro models that better emulate human pathologies. STATEMENT OF SIGNIFICANCE: Biomaterial development primarily emphasizes the engineering of new materials and therapies at the expense of identifying key parameters of the tissue that is being emulated. This can be partially attributed to the difficulty in defining the 3D composition, organization, and mechanics of the ECM within different tissues and how these material properties vary as a function of homeostasis and disease. In this review, we highlight a range of tissues throughout the body and describe how ECM content, cell diversity, and mechanical properties change in diseased tissues and influence cellular behavior. Accurately mimicking the tissue of interest in vitro by using ECM specific to the appropriate state of homeostasis or pathology in vivo will yield results more translatable to humans.
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Affiliation(s)
- Olivia R Tonti
- Paul M. Rady Department of Mechanical Engineering, University of Colorado - Boulder, 1111 Engineering Center, 427 UCB, Boulder, CO 80309, United States
| | - Hannah Larson
- Paul M. Rady Department of Mechanical Engineering, University of Colorado - Boulder, 1111 Engineering Center, 427 UCB, Boulder, CO 80309, United States
| | - Sarah N Lipp
- Paul M. Rady Department of Mechanical Engineering, University of Colorado - Boulder, 1111 Engineering Center, 427 UCB, Boulder, CO 80309, United States
| | - Callan M Luetkemeyer
- Paul M. Rady Department of Mechanical Engineering, University of Colorado - Boulder, 1111 Engineering Center, 427 UCB, Boulder, CO 80309, United States
| | - Megan Makam
- Paul M. Rady Department of Mechanical Engineering, University of Colorado - Boulder, 1111 Engineering Center, 427 UCB, Boulder, CO 80309, United States
| | - Diego Vargas
- Paul M. Rady Department of Mechanical Engineering, University of Colorado - Boulder, 1111 Engineering Center, 427 UCB, Boulder, CO 80309, United States
| | - Sean M Wilcox
- Paul M. Rady Department of Mechanical Engineering, University of Colorado - Boulder, 1111 Engineering Center, 427 UCB, Boulder, CO 80309, United States
| | - Sarah Calve
- Paul M. Rady Department of Mechanical Engineering, University of Colorado - Boulder, 1111 Engineering Center, 427 UCB, Boulder, CO 80309, United States.
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Abstract
Epidermolysis bullosa (EB) is a group of rare, inherited diseases characterized by skin fragility and multiorgan system involvement that presents many anesthetic challenges. Although the literature regarding anesthetic management focuses primarily on the pediatric population, as life expectancy improves, adult patients with EB are more frequently undergoing anesthesia in nonpediatric hospital settings. Safe anesthetic management of adult patients with EB requires familiarity with the complex and heterogeneous nature of this disease, especially with regard to complications that may worsen during adulthood. General, neuraxial, and regional anesthetics have all been used safely in patients with EB. A thorough preoperative evaluation is essential. Preoperative testing should be guided by EB subtype, clinical manifestations, and extracutaneous complications. Advanced planning and multidisciplinary coordination are necessary with regard to timing and operative plan. Meticulous preparation of the operating room and education of all perioperative staff members is critical. Intraoperatively, utmost care must be taken to avoid all adhesives, shear forces, and friction to the skin and mucosa. Special precautions must be taken with patient positioning, and standard anesthesia monitors must be modified. Airway management is often difficult, and progressive airway deterioration can occur in adults with EB over time. A smooth induction, emergence, and postoperative course are necessary to minimize blister formation from excess patient movement. With careful planning, preparation, and precautions, adult patients with EB can safely undergo anesthesia.
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Smith BRC, Nyström A, Nowell CJ, Hausser I, Gretzmeier C, Robertson SJ, Varigos GA, Has C, Kern JS, Pang KC. Mouse models for dominant dystrophic epidermolysis bullosa carrying common human point mutations recapitulate the human disease. Dis Model Mech 2021; 14:dmm048082. [PMID: 34085701 PMCID: PMC8214732 DOI: 10.1242/dmm.048082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 04/27/2021] [Indexed: 12/13/2022] Open
Abstract
Heterozygous missense mutations in the human COL7A1 gene - coding for collagen VII - lead to the rare, dominantly inherited skin disorder dominant dystrophic epidermolysis bullosa (DDEB), which is characterised by skin fragility, blistering, scarring and nail dystrophy. To better understand the pathophysiology of DDEB and develop more effective treatments, suitable mouse models for DDEB are required but to date none have existed. We identified the two most common COL7A1 mutations in DDEB patients (p.G2034R and p.G2043R) and used CRISPR-Cas9 to introduce the corresponding mutations into mouse Col7a1 (p.G2028R and p.G2037R). Dominant inheritance of either of these two alleles results in a phenotype that closely resembles that seen in DDEB patients. Specifically, mice carrying these alleles show recurrent blistering that is first observed transiently around the mouth and paws in the early neonatal period and then again around the digits from 5-10 weeks of age. Histologically, the mice show micro-blistering and reduced collagen VII immunostaining. Biochemically, collagen VII from these mice displays reduced thermal stability, which we also observed to be the case for DDEB patients carrying the analogous mutations. Unlike previous rodent models of epidermolysis bullosa, which frequently show early lethality and severe disease, these mouse models, which to our knowledge are the first for DDEB, show no reduction in growth and survival, and - together with a relatively mild phenotype - represent a practically and ethically tractable tool for better understanding and treating epidermolysis bullosa. This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Blake R. C. Smith
- Murdoch Children's Research Institute, Parkville, VIC 3052, Australia
- Department of Paediatrics, University of Melbourne, Parkville, VIC 3052, Australia
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Alexander Nyström
- Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg 79104, Germany
| | - Cameron J. Nowell
- Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Ingrid Hausser
- Institute of Pathology, University Hospital Heidelberg, Heidelberg 69120, Germany
| | - Christine Gretzmeier
- Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg 79104, Germany
| | - Susan J. Robertson
- Murdoch Children's Research Institute, Parkville, VIC 3052, Australia
- Dermatology Department, Faculty of Medicine, Dentistry and Health Sciences, The Royal Melbourne Hospital, University of Melbourne, Parkville, VIC 3050, Australia
- Royal Children's Hospital, Parkville, VIC 3052, Australia
| | - George A. Varigos
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
- Dermatology Department, Faculty of Medicine, Dentistry and Health Sciences, The Royal Melbourne Hospital, University of Melbourne, Parkville, VIC 3050, Australia
| | - Cristina Has
- Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg 79104, Germany
| | - Johannes S. Kern
- Dermatology Department, Faculty of Medicine, Dentistry and Health Sciences, The Royal Melbourne Hospital, University of Melbourne, Parkville, VIC 3050, Australia
| | - Ken C. Pang
- Murdoch Children's Research Institute, Parkville, VIC 3052, Australia
- Department of Paediatrics, University of Melbourne, Parkville, VIC 3052, Australia
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
- Royal Children's Hospital, Parkville, VIC 3052, Australia
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Rezvani Ghomi E, Nourbakhsh N, Akbari Kenari M, Zare M, Ramakrishna S. Collagen-based biomaterials for biomedical applications. J Biomed Mater Res B Appl Biomater 2021; 109:1986-1999. [PMID: 34028179 DOI: 10.1002/jbm.b.34881] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 04/24/2021] [Accepted: 05/15/2021] [Indexed: 12/19/2022]
Abstract
Collagen is an insoluble fibrous protein that composes the extracellular matrix in animals. Although collagen has been used as a biomaterial since 1881, the properties and the complex structure of collagen are still extensive study subjects worldwide. In this article, several topics of importance for understanding collagen research are reviewed starting from its historical milestones, followed by the description of the collagen superfamily and its complex structures, with a focus on type I collagen. Subsequently, some of the superior properties of collagen-based biomaterials, such as biocompatibility, biodegradability, mechanical properties, and cell activities, are pinpointed. These properties make collagen applicable in biomedicine, such as wound healing, tissue engineering, surface coating of medical devices, and skin supplementation. Moreover, some antimicrobial strategies and the general host tissue responses regarding collagen as a biomaterial are presented. Finally, the current status and clinical application of the three-dimensional (3D) printing techniques for the fabrication of collagen-based scaffolds and the reconstruction of the human heart's constituents, such as capillary structures or even the entire organ, are discussed. Besides, an overall outlook for the future of this unique biomaterial is provided.
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Affiliation(s)
- Erfan Rezvani Ghomi
- Center for Nanotechnology and Sustainability, Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
| | - Nooshin Nourbakhsh
- Yong Loo Lin School of Medicine, Department of Medicine, National University of Singapore, Singapore, Singapore
| | | | - Mina Zare
- Center for Nanotechnology and Sustainability, Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
| | - Seeram Ramakrishna
- Center for Nanotechnology and Sustainability, Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
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Twaroski K, Chen W, Pickett-Leonard M, Tolar J. Role of transforming growth factor-β1 in recessive dystrophic epidermolysis bullosa squamous cell carcinoma. Exp Dermatol 2021; 30:664-675. [PMID: 33595864 DOI: 10.1111/exd.14304] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 01/28/2021] [Accepted: 02/13/2021] [Indexed: 12/13/2022]
Abstract
Squamous cell carcinoma (SCC) develops in more than 80% of individuals with the skin blistering disorder recessive dystrophic epidermolysis bullosa (RDEB). In contrast with UV-induced SCC, RDEB-SCC results from skin damage and has a high proliferative and metastatic rate with 5-year survival near zero. Our objective is to determine the mechanisms underlying the increased metastatic tendencies of RDEB-SCC. RDEB-SCC cultured cell lines were treated with RDEB and non-RDEB fibroblast conditioned media and assayed for migration and invasion with and without small molecule inhibitors for TGFβ and other downstream signal transduction pathways. TGFβ1 secreted by RDEB dermal fibroblasts has been found to induce migration and invasion and to increase expression of epithelial-to-mesenchymal transition markers in an RDEB-SCC line. These effects were reversed upon inhibition of TGFβ signalling and its downstream pathways MEK/ERK, P38 kinase and SMAD3. A number of small molecule inhibitors for these pathways are in different phases of various clinical trials and may be applicable to RDEB-SCC patients. Studying the mechanisms of the extreme form RDEB-SCC may inform studies of other types of SCC, as well as lead to better therapies for RDEB patients.
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Affiliation(s)
- Kirk Twaroski
- Stem Cell Institute, University of Minnesota, Minneapolis, MN, USA
| | - Weili Chen
- Stem Cell Institute, University of Minnesota, Minneapolis, MN, USA
| | - Michael Pickett-Leonard
- Stem Cell Institute, University of Minnesota, Minneapolis, MN, USA.,Department of Pediatrics, Blood and Marrow Transplantation, University of Minnesota, Minneapolis, MN, USA
| | - Jakub Tolar
- Stem Cell Institute, University of Minnesota, Minneapolis, MN, USA.,Department of Pediatrics, Blood and Marrow Transplantation, University of Minnesota, Minneapolis, MN, USA
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Signatures of Dermal Fibroblasts from RDEB Pediatric Patients. Int J Mol Sci 2021; 22:ijms22041792. [PMID: 33670258 PMCID: PMC7918539 DOI: 10.3390/ijms22041792] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/05/2021] [Accepted: 02/08/2021] [Indexed: 12/13/2022] Open
Abstract
The recessive form of dystrophic epidermolysis bullosa (RDEB) is a debilitating disease caused by impairments in the junctions of the dermis and the basement membrane of the epidermis. Mutations in the COL7A1 gene induce multiple abnormalities, including chronic inflammation and profibrotic changes in the skin. However, the correlations between the specific mutations in COL7A1 and their phenotypic output remain largely unexplored. The mutations in the COL7A1 gene, described here, were found in the DEB register. Among them, two homozygous mutations and two cases of compound heterozygous mutations were identified. We created the panel of primary patient-specific RDEB fibroblast lines (FEB) and compared it with control fibroblasts from healthy donors (FHC). The set of morphological features and the contraction capacity of the cells distinguished FEB from FHC. We also report the relationships between the mutations and several phenotypic traits of the FEB. Based on the analysis of the available RNA-seq data of RDEB fibroblasts, we performed an RT-qPCR gene expression analysis of our cell lines, confirming the differential status of multiple genes while uncovering the new ones. We anticipate that our panels of cell lines will be useful not only for studying RDEB signatures but also for investigating the overall mechanisms involved in disease progression.
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43
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Aumailley M. Laminins and interaction partners in the architecture of the basement membrane at the dermal-epidermal junction. Exp Dermatol 2020; 30:17-24. [PMID: 33205478 DOI: 10.1111/exd.14239] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/27/2020] [Accepted: 11/05/2020] [Indexed: 02/06/2023]
Abstract
The basement membrane at the dermal-epidermal junction keeps the epidermis attached to the dermis. This anatomical barrier is made up of four categories of extracellular matrix proteins: collagen IV, laminin, nidogen and perlecan. These proteins are precisely arranged in a well-defined architecture through specific interactions between the structural domains of the individual components. Some of the molecular constituents are provided by both fibroblasts and keratinocytes, while others are synthesized exclusively by fibroblasts or keratinocytes. It remains to be determined how the components from the fibroblasts are targeted to the dermal-epidermal junction and correctly organized and integrated with the proteins from the adjacent keratinocytes to form the basement membrane.
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Affiliation(s)
- Monique Aumailley
- Medical Faculty, Center for Biochemistry, University of Cologne, Cologne, Germany
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44
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Garcia TM, Kiener S, Jagannathan V, Russell DS, Leeb T. A COL7A1 Variant in a Litter of Neonatal Basset Hounds with Dystrophic Epidermolysis Bullosa. Genes (Basel) 2020; 11:E1458. [PMID: 33291836 PMCID: PMC7762066 DOI: 10.3390/genes11121458] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/02/2020] [Accepted: 12/03/2020] [Indexed: 01/25/2023] Open
Abstract
We investigated three neonatal Basset Hound littermates with lesions consistent with epidermolysis bullosa (EB), a group of genetic blistering diseases. A clinically normal bitch was bred to her grandfather by artificial insemination. Out of a litter of seven puppies, two affected puppies died and one was euthanized, with these puppies being submitted for diagnostic necropsy. All had multiple bullae and ulcers involving the nasal planum and paw pads, as well as sloughing claws; one puppy also had oral and esophageal ulcers. The complete genome of one affected puppy was sequenced, and 37 known EB candidate genes were assessed. We found a candidate causative variant in COL7A1, which encodes the collagen VII alpha 1 chain. The variant is a complex rearrangement involving duplication of a 107 bp region harboring a frameshift deletion of 7 bp. The variant is predicted to truncate more than 75% of the open reading frame, p.(Val677Serfs*11). Targeted genotyping of this duplication confirmed that all three affected puppies were homozygous for the duplication, whereas 12 unaffected Basset Hounds did not carry the duplication. This variant was also not seen in the genomes of more than 600 dogs of other breeds. COL7A1 variants have been identified in humans and dogs with dystrophic epidermolysis bullosa (DEB). The identified COL7A1 variant therefore most likely represents the causative variant and allows the refinement of the preliminary EB diagnosis to DEB.
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Affiliation(s)
- Teresa Maria Garcia
- Department of Biomedical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, OR 97331, USA;
| | - Sarah Kiener
- Institute of Genetics, Vetsuisse Faculty, University of Bern, 3001 Bern, Switzerland; (S.K.); (V.J.)
- Dermfocus, University of Bern, 3001 Bern, Switzerland
| | - Vidhya Jagannathan
- Institute of Genetics, Vetsuisse Faculty, University of Bern, 3001 Bern, Switzerland; (S.K.); (V.J.)
- Dermfocus, University of Bern, 3001 Bern, Switzerland
| | - Duncan S. Russell
- Department of Biomedical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, OR 97331, USA;
| | - Tosso Leeb
- Institute of Genetics, Vetsuisse Faculty, University of Bern, 3001 Bern, Switzerland; (S.K.); (V.J.)
- Dermfocus, University of Bern, 3001 Bern, Switzerland
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Huang A, Guo G, Yu Y, Yao L. The roles of collagen in chronic kidney disease and vascular calcification. J Mol Med (Berl) 2020; 99:75-92. [PMID: 33236192 DOI: 10.1007/s00109-020-02014-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 01/16/2023]
Abstract
The extracellular matrix component collagen is widely expressed in human tissues and participates in various cellular biological processes. The collagen amount generally remains stable due to intricate regulatory networks, but abnormalities can lead to several diseases. During the development of renal fibrosis and vascular calcification, the expression of collagen is significantly increased, which promotes phenotypic changes in intrinsic renal cells and vascular smooth muscle cells, thereby exacerbating disease progression. Reversing the overexpression of collagen substantially prevents or slows renal fibrosis and vascular calcification in a wide range of animal models, suggesting a novel target for treating patients with these diseases. Stem cell therapy seems to be an effective strategy to alleviate these two conditions. However, recent findings indicate that the natural pore structure of collagen fibers is sufficient to induce the inappropriate differentiation of stem cells and thereby exacerbate renal fibrosis and vascular calcification. A comprehensive understanding of the role of collagen in these diseases and its effect on stem cell biology will assist in improving the unmet requirements for treating patients with kidney disease.
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Affiliation(s)
- Aoran Huang
- Department of Nephrology, The First Hospital of China Medical University, Shenyang, 110000, China
| | - Guangying Guo
- Department of Nephrology, The First Hospital of China Medical University, Shenyang, 110000, China
| | - Yanqiu Yu
- Department of Pathophysiology, College of Basic Medical Sciences, China Medical University, Shenyang, 110013, China. .,Shenyang Engineering Technology R&D Center of Cell Therapy Co. LTD., Shenyang, 110169, China.
| | - Li Yao
- Department of Nephrology, The First Hospital of China Medical University, Shenyang, 110000, China.
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Maseda R, Martínez-Santamaría L, Sacedón R, Butta N, de Arriba MDC, García-Barcenilla S, García M, Illera N, Pérez-Conde I, Carretero M, Jiménez E, Melen G, Borobia AM, Jiménez-Yuste V, Vicente Á, del Río M, de Lucas R, Escámez MJ. Beneficial Effect of Systemic Allogeneic Adipose Derived Mesenchymal Cells on the Clinical, Inflammatory and Immunologic Status of a Patient With Recessive Dystrophic Epidermolysis Bullosa: A Case Report. Front Med (Lausanne) 2020; 7:576558. [PMID: 33324660 PMCID: PMC7726418 DOI: 10.3389/fmed.2020.576558] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 11/02/2020] [Indexed: 12/22/2022] Open
Abstract
Recessive dystrophic epidermolysis bullosa (RDEB) is an incurable inherited mucocutaneous fragility disorder characterized by recurrent blisters, erosions, and wounds. Continuous blistering triggers overlapping cycles of never-ending healing and scarring commonly evolving to chronic systemic inflammation and fibrosis. The systemic treatment with allogeneic mesenchymal cells (MSC) from bone marrow has previously shown benefits in RDEB. MSC from adipose tissue (ADMSC) are easier to isolate. This is the first report on the use of systemic allogeneic ADMSC, correlating the clinical, inflammatory, and immunologic outcomes in RDEB indicating long-lasting benefits. We present the case of an RDEB patient harboring heterozygous biallelic COL7A1 gene mutations and with a diminished expression of C7. The patient presented with long-lasting refractory and painful oral ulcers distressing her quality of life. Histamine receptor antagonists, opioid analgesics, proton-pump inhibitors, and low-dose tricyclic antidepressants barely improved gastric symptoms, pain, and pruritus. Concomitantly, allogeneic ADMSC were provided as three separate intravenous injections of 106 cells/kg every 21 days. ADMSC treatment was well-tolerated. Improvements in wound healing, itch, pain and quality of life were observed, maximally at 6-9 months post-treatment, with the relief of symptoms still noticeable for up to 2 years. Remarkably, significant modifications in PBL participating in both the innate and adaptive responses, alongside regulation of levels of profibrotic factors, MCP-1/CCL2 and TGF-β, correlated with the health improvement. This treatment might represent an alternative for non-responding patients to conventional management. It seems critical to elucidate the paracrine modulation of the immune system by MSC for their rational use in regenerative/immunoregulatory therapies.
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Affiliation(s)
- Rocío Maseda
- Department of Dermatology, La Paz University Hospital, Madrid, Spain
| | - Lucía Martínez-Santamaría
- Department of Bioengineering, Carlos III University (UC3M), Madrid, Spain
- Rare Diseases Networking Biomedical Research Centre (CIBERER) U714, Madrid, Spain
- Regenerative Medicine and Tissue Engineering Group, Health Research Institute Foundation of the Jiménez Díaz Foundation, Madrid, Spain
- Centre for Energy, Environment and Technology Research (CIEMAT), Madrid, Spain
| | - Rosa Sacedón
- Department of Cell Biology, Faculty of Medicine, Complutense University, Madrid, Spain
| | - Nora Butta
- Hematology Unit, La Paz University Hospital-IdiPAZ, Madrid, Spain
| | - María del Carmen de Arriba
- Department of Bioengineering, Carlos III University (UC3M), Madrid, Spain
- Regenerative Medicine and Tissue Engineering Group, Health Research Institute Foundation of the Jiménez Díaz Foundation, Madrid, Spain
- Centre for Energy, Environment and Technology Research (CIEMAT), Madrid, Spain
| | | | - Marta García
- Department of Bioengineering, Carlos III University (UC3M), Madrid, Spain
- Rare Diseases Networking Biomedical Research Centre (CIBERER) U714, Madrid, Spain
- Regenerative Medicine and Tissue Engineering Group, Health Research Institute Foundation of the Jiménez Díaz Foundation, Madrid, Spain
- Centre for Energy, Environment and Technology Research (CIEMAT), Madrid, Spain
| | - Nuria Illera
- Rare Diseases Networking Biomedical Research Centre (CIBERER) U714, Madrid, Spain
- Regenerative Medicine and Tissue Engineering Group, Health Research Institute Foundation of the Jiménez Díaz Foundation, Madrid, Spain
- Centre for Energy, Environment and Technology Research (CIEMAT), Madrid, Spain
| | | | - Marta Carretero
- Rare Diseases Networking Biomedical Research Centre (CIBERER) U714, Madrid, Spain
- Regenerative Medicine and Tissue Engineering Group, Health Research Institute Foundation of the Jiménez Díaz Foundation, Madrid, Spain
- Centre for Energy, Environment and Technology Research (CIEMAT), Madrid, Spain
| | - Eva Jiménez
- Department of Cell Biology, Faculty of Medicine, Complutense University, Madrid, Spain
| | - Gustavo Melen
- Cell & Gene Therapies Laboratory, Niño Jesus University Hospital, Madrid, Spain
| | - Alberto M. Borobia
- Clinical Pharmacology Department, School of Medicine, La Paz University Hospital, IdiPAZ, Autonomous University of Madrid, Madrid, Spain
| | | | - Ángeles Vicente
- Department of Cell Biology, Faculty of Medicine, Complutense University, Madrid, Spain
| | - Marcela del Río
- Department of Bioengineering, Carlos III University (UC3M), Madrid, Spain
- Rare Diseases Networking Biomedical Research Centre (CIBERER) U714, Madrid, Spain
- Regenerative Medicine and Tissue Engineering Group, Health Research Institute Foundation of the Jiménez Díaz Foundation, Madrid, Spain
- Centre for Energy, Environment and Technology Research (CIEMAT), Madrid, Spain
| | - Raúl de Lucas
- Department of Dermatology, La Paz University Hospital, Madrid, Spain
| | - María José Escámez
- Department of Bioengineering, Carlos III University (UC3M), Madrid, Spain
- Rare Diseases Networking Biomedical Research Centre (CIBERER) U714, Madrid, Spain
- Regenerative Medicine and Tissue Engineering Group, Health Research Institute Foundation of the Jiménez Díaz Foundation, Madrid, Spain
- Centre for Energy, Environment and Technology Research (CIEMAT), Madrid, Spain
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Mariath LM, Santin JT, Schuler-Faccini L, Kiszewski AE. Inherited epidermolysis bullosa: update on the clinical and genetic aspects. An Bras Dermatol 2020; 95:551-569. [PMID: 32732072 PMCID: PMC7563003 DOI: 10.1016/j.abd.2020.05.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 05/17/2020] [Indexed: 12/14/2022] Open
Abstract
Inherited epidermolysis bullosa is a group of genetic diseases characterized by skin fragility and blistering on the skin and mucous membranes in response to minimal trauma. Epidermolysis bullosa is clinically and genetically very heterogeneous, being classified into four main types according to the layer of skin in which blistering occurs: epidermolysis bullosa simplex (intraepidermal), junctional epidermolysis bullosa (within the lamina lucida of the basement membrane), dystrophic epidermolysis bullosa (below the basement membrane), and Kindler epidermolysis bullosa (mixed skin cleavage pattern). Furthermore, epidermolysis bullosa is stratified into several subtypes, which consider the clinical characteristics, the distribution of the blisters, and the severity of cutaneous and extracutaneous signs. Pathogenic variants in at least 16 genes that encode proteins essential for the integrity and adhesion of skin layers have already been associated with different subtypes of epidermolysis bullosa. The marked heterogeneity of the disease, which includes phenotypes with a broad spectrum of severity and many causal genes, hinders its classification and diagnosis. For this reason, dermatologists and geneticists regularly review and update the classification criteria. This review aimed to update the state of the art on inherited epidermolysis bullosa, with a special focus on the associated clinical and genetic aspects, presenting data from the most recent reclassification consensus, published in 2020.
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Affiliation(s)
- Luiza Monteavaro Mariath
- Postgraduate Program in Genetics and Molecular Biology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Juliana Tosetto Santin
- Postgraduate Program in Child and Adolescent Health, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Dermatology Service, Santa Casa de Misericórdia de Porto Alegre/Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
| | | | - Ana Elisa Kiszewski
- Dermatology Service, Santa Casa de Misericórdia de Porto Alegre/Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil; Department of Clinical Medicine, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil; Pediatric Dermatology Unit, Santa Casa de Misericórdia de Porto Alegre/Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil.
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Yang R, Duan Y, Kong Q, Li W, Xu J, Xia X, Sang H. What do we learn from dystrophic epidermolysis bullosa, nails only? Idiopathic nail dystrophy may harbor a COL7A1 mutation as the underlying cause. J Dermatol 2020; 47:782-786. [PMID: 32396230 DOI: 10.1111/1346-8138.15372] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 04/05/2020] [Indexed: 12/01/2022]
Abstract
Dystrophic epidermolysis bullosa (DEB) is a genodermatosis caused by mutations in the COL7A1 gene. DEB, nails only (DEB-na), is a rare type of DEB. Patients with DEB-na can be overlooked, and genetic testing is helpful to determine the correct diagnosis. We collected two families with DEB-na. Clinical information was analyzed. Ultrastructural analysis of the skin tissue was performed. Blood samples were obtained. Next-generation sequencing was performed and the results were confirmed by Sanger sequencing. A genetic study revealed two novel heterozygous mutations: COL7A1:c.6742G>A (p.G2248R) in patient 1 and c.7181C>G (p.P2394R) in patient 2. Precise diagnosis was made for every patient based on clinical findings and genetic studies. We summarized the phenotype and COL7A1 mutations related to DEB-na. We report a new phenotype of DEB-na and two novel mutations in COL7A1. In addition, we emphasize the importance of careful clinical examination and genetic testing in the diagnosis of DEB-na.
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Affiliation(s)
- Rui Yang
- Department of Dermatology, School of Medicine, Jinling Hospital, Nanjing University, Nanjing, China
| | - Yuanyuan Duan
- Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Qingtao Kong
- Department of Dermatology, School of Medicine, Jinling Hospital, Nanjing University, Nanjing, China
| | - Weiwei Li
- Department of Reproduction and Genetics, Institute of Laboratory Medicine, School of Medicine, Jinling Hospital, Nanjing University, Nanjing, China
| | - Jie Xu
- Department of Dermatology, School of Medicine, Jinling Hospital, Nanjing University, Nanjing, China
| | - Xinyi Xia
- Department of Reproduction and Genetics, Institute of Laboratory Medicine, School of Medicine, Jinling Hospital, Nanjing University, Nanjing, China
| | - Hong Sang
- Department of Dermatology, School of Medicine, Jinling Hospital, Nanjing University, Nanjing, China
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Parodi E, Tirtei E, Bianchi M, Frigerio M, Morra I, Coppo P. Association of dystrophic epidermolysis bullosa and neuroblastoma in a newborn. Pediatr Neonatol 2020; 61:117-118. [PMID: 31806449 DOI: 10.1016/j.pedneo.2019.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 09/30/2019] [Accepted: 11/06/2019] [Indexed: 11/18/2022] Open
Affiliation(s)
- Emilia Parodi
- Pediatric and Neonatology Unit, AO Ordine Mauriziano Hospital, Turin, Italy.
| | - Elisa Tirtei
- Oncology Department, Regina Margherita Children's Hospital, Citta' della Salute e della Scienza, Turin, Italy
| | - Maurizio Bianchi
- Oncology Department, Regina Margherita Children's Hospital, Citta' della Salute e della Scienza, Turin, Italy
| | - Mario Frigerio
- Pediatric and Neonatology Unit, AO Ordine Mauriziano Hospital, Turin, Italy
| | - Isabella Morra
- Pathology Unit, AOU Città della Salute e della Scienza di Torino, Turin, Italy
| | - Paola Coppo
- Pediatric Department, Regina Margherita Children's Hospital, Citta' della Salute e della Scienza, Turin, Italy
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Jeong S, Yoon S, Kim S, Jung J, Kor M, Shin K, Lim C, Han HS, Lee H, Park KY, Kim J, Chung HJ, Kim HJ. Anti-Wrinkle Benefits of Peptides Complex Stimulating Skin Basement Membrane Proteins Expression. Int J Mol Sci 2019; 21:E73. [PMID: 31861912 PMCID: PMC6981886 DOI: 10.3390/ijms21010073] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/15/2019] [Accepted: 12/18/2019] [Indexed: 12/16/2022] Open
Abstract
The dermal-epidermal junction (DEJ) provides a physical and biological interface between the epidermis and the dermis. In addition to providing a structural integrity, the DEJ also acts as a passageway for molecular transport. Based on the recently reported importance of the DEJ in skin aging, novel peptide derivatives have been tested for their effects on basement membrane (BM) protein expressions in cultured human epidermal keratinocytes. As a result, protein expressions of collagen XVII, laminin and nidogen were stimulated by the test peptide and peptides complex. Further ex vivo evaluation using excised human skin, confirmed that the topical application of the peptides complex significantly increased dermal collagen expression, as well as expressions of collagen XVII and laminin. Interestingly, while the origin of the laminin protein is epidermal keratinocytes, the immunohistochemical staining of skin showed that laminin was only detected in the uppermost layer of the dermis, which suggests a tight assembly of laminin protein onto the dermal side of the DEJ. These results suggest that a peptide complex could improve the structural properties of the DEJ through its ability to stimulate BM proteins. In order to evaluate the anti-wrinkle benefits of the peptide complex in vivo, a clinical study was performed on 22 healthy Asian female volunteers older than 40 years. As a result, significant improvements in skin wrinkles for all of the five sites were observed after two weeks, as assessed by skin topographic measurements. Collectively, these results demonstrate the anti-aging efficacy of the peptides complex.
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Affiliation(s)
- Sekyoo Jeong
- Research Division, Incospharm Corporation, Daejeon 34036, Korea; (S.J.); (S.Y.); (S.K.); (J.J.); (M.K.); (K.S.); (C.L.); (H.J.C.)
| | - Seokjeong Yoon
- Research Division, Incospharm Corporation, Daejeon 34036, Korea; (S.J.); (S.Y.); (S.K.); (J.J.); (M.K.); (K.S.); (C.L.); (H.J.C.)
| | - Sungwoo Kim
- Research Division, Incospharm Corporation, Daejeon 34036, Korea; (S.J.); (S.Y.); (S.K.); (J.J.); (M.K.); (K.S.); (C.L.); (H.J.C.)
| | - Juyeon Jung
- Research Division, Incospharm Corporation, Daejeon 34036, Korea; (S.J.); (S.Y.); (S.K.); (J.J.); (M.K.); (K.S.); (C.L.); (H.J.C.)
| | - Myungho Kor
- Research Division, Incospharm Corporation, Daejeon 34036, Korea; (S.J.); (S.Y.); (S.K.); (J.J.); (M.K.); (K.S.); (C.L.); (H.J.C.)
| | - Kayoung Shin
- Research Division, Incospharm Corporation, Daejeon 34036, Korea; (S.J.); (S.Y.); (S.K.); (J.J.); (M.K.); (K.S.); (C.L.); (H.J.C.)
| | - Chaejin Lim
- Research Division, Incospharm Corporation, Daejeon 34036, Korea; (S.J.); (S.Y.); (S.K.); (J.J.); (M.K.); (K.S.); (C.L.); (H.J.C.)
| | - Hyo Sun Han
- P&K Skin Research Center Company Limited, Seoul 07236, Korea; (H.S.H.); (H.L.)
| | - Haekwang Lee
- P&K Skin Research Center Company Limited, Seoul 07236, Korea; (H.S.H.); (H.L.)
| | - Kyeong-Yong Park
- Research Division, Cha Meditech Corporation, Daejeon 34025, Korea;
| | | | - Hwa Jee Chung
- Research Division, Incospharm Corporation, Daejeon 34036, Korea; (S.J.); (S.Y.); (S.K.); (J.J.); (M.K.); (K.S.); (C.L.); (H.J.C.)
| | - Hyun Jung Kim
- CHA Bio F&C, Seongnam 13488, Korea;
- Department of Dermatology, CHA Bundang Medical Center, CHA University, Seongnam 13496, Korea
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