1
|
Aimond G, Nicolle S, Debret R, Oréa V, Josset-Lamaugarny A, Palierne JF, Sommer P, Sigaudo-Roussel D, Fromy B. Dill Extract Preserves Dermal Elastic Fiber Network and Functionality: Implication of Elafin. Skin Pharmacol Physiol 2023; 36:249-258. [PMID: 37788642 DOI: 10.1159/000534248] [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: 04/05/2022] [Accepted: 09/19/2023] [Indexed: 10/05/2023]
Abstract
INTRODUCTION Elastic skin fibers lose their mechanical properties during aging due to enzymatic degradation, lack of maturation, or posttranslational modifications. Dill extract has been observed to increase elastin protein expression and maturation in a 3D skin model, to improve mechanical properties of the skin, to increase elastin protein expression in vascular smooth muscle cells, to preserve aortic elastic lamella, and to prevent glycation. OBJECTIVE The aim of the study was to highlight dill actions on elastin fibers during aging thanks to elastase digestion model and the underlying mechanism. METHODS In this study, elastic fibers produced by dermal fibroblasts in 2D culture model were injured by elastase, and we observed the action of dill extract on elastic network by elastin immunofluorescence. Then action of dill extract was examined on mice skin by injuring elastin fibers by intradermal injection of elastase. Then elastin fibers were observed by second harmonic generation microscopy, and their functionality was evaluated by oscillatory shear stress tests. In order to understand mechanism by which dill acted on elastin fibers, enzymatic tests and real-time qPCR on cultured fibroblasts were performed. RESULTS We evidence in vitro that dill extract is able to prevent elastin from elastase digestion. And we confirm in vivo that dill extract treatment prevents elastase digestion, allowing preservation of the cutaneous elastic network in mice and preservation of the cutaneous elastic properties. Although dill extract does not directly inhibit elastase activity, our results show that dill extract treatment increases mRNA expression of the endogenous inhibitor of elastase, elafin. CONCLUSION Dill extract can thus be used to counteract the negative effects of elastase on the cutaneous elastic fiber network through modulation of PI3 gene expression.
Collapse
Affiliation(s)
- Géraldine Aimond
- LBTI UMR5305, CNRS/Univ Lyon/Université Claude Bernard Lyon 1, Lyon, France
| | - Stéphane Nicolle
- LBMC UMR_T9406 /Univ Lyon/ Université Claude Bernard Lyon 1/Université Gustave Eiffel, Lyon, France
| | - Romain Debret
- LBTI UMR5305, CNRS/Univ Lyon/Université Claude Bernard Lyon 1, Lyon, France
| | - Valérie Oréa
- ANIPHY Platform SFR Santé Lyon-Est UCBL, UAR3453/US7/Faculté De Médecine, Lyon, France
| | | | - Jean-François Palierne
- Laboratoire De Physique, ENS De Lyon, CNRS/ Univ Lyon/ Univ Claude Bernard, Lyon, France
| | - Pascal Sommer
- Hôpital Sainte Marguerite/Aix Marseille Université, Marseille, France
| | | | - Bérengère Fromy
- LBTI UMR5305, CNRS/Univ Lyon/Université Claude Bernard Lyon 1, Lyon, France
| |
Collapse
|
2
|
Halsey G, Sinha D, Dhital S, Wang X, Vyavahare N. Role of elastic fiber degradation in disease pathogenesis. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166706. [PMID: 37001705 DOI: 10.1016/j.bbadis.2023.166706] [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: 10/28/2022] [Revised: 03/22/2023] [Accepted: 03/23/2023] [Indexed: 03/31/2023]
Abstract
Elastin is a crucial extracellular matrix protein that provides structural integrity to tissues. Crosslinked elastin and associated microfibrils, named elastic fiber, contribute to biomechanics by providing the elasticity required for proper function. During aging and disease, elastic fiber can be progressively degraded and since there is little elastin synthesis in adults, degraded elastic fiber is not regenerated. There is substantial evidence linking loss or damage of elastic fibers to the clinical manifestation and pathogenesis of a variety of diseases. Disruption of elastic fiber networks by hereditary mutations, aging, or pathogenic stimuli results in systemic ailments associated with the production of elastin degradation products, inflammatory responses, and abnormal physiology. Due to its longevity, unique mechanical properties, and widespread distribution in the body, elastic fiber plays a central role in homeostasis of various physiological systems. While pathogenesis related to elastic fiber degradation has been more thoroughly studied in elastic fiber rich tissues such as the vasculature and the lungs, even tissues containing relatively small quantities of elastic fibers such as the eyes or joints may be severely impacted by elastin degradation. Elastic fiber degradation is a common observation in certain hereditary, age, and specific risk factor exposure induced diseases representing a converging point of pathological clinical phenotypes which may also help explain the appearance of co-morbidities. In this review, we will first cover the role of elastic fiber degradation in the manifestation of hereditary diseases then individually explore the structural role and degradation effects of elastic fibers in various tissues and organ systems. Overall, stabilizing elastic fiber structures and repairing lost elastin may be effective strategies to reverse the effects of these diseases.
Collapse
Affiliation(s)
- Gregory Halsey
- Department of Bioengineering, Clemson University, SC 29634, United States of America
| | - Dipasha Sinha
- Department of Bioengineering, Clemson University, SC 29634, United States of America
| | - Saphala Dhital
- Department of Bioengineering, Clemson University, SC 29634, United States of America
| | - Xiaoying Wang
- Department of Bioengineering, Clemson University, SC 29634, United States of America
| | - Naren Vyavahare
- Department of Bioengineering, Clemson University, SC 29634, United States of America.
| |
Collapse
|
3
|
Pandey K, Teguh DN, van Hulst RA. Effect of hyperbaric oxygen treatment on skin elasticity in irradiated patients. Diving Hyperb Med 2022; 52:208-212. [PMID: 36100932 PMCID: PMC9722336 DOI: 10.28920/dhm52.3.208-212] [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: 01/07/2022] [Accepted: 05/06/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND Hyperbaric oxygen treatment (HBOT) is often used in an attempt to reverse/treat late radiation-induced tissue fibrosis (LRITF). This study aimed to quantify the effects on skin elasticity. METHODS Skin retraction time was used as a marker of skin elasticity in 13 irradiated breast cancer patients. The measurements were carried out on the affected side as well as the unaffected/healthy side at a mirrored location. Readings were taken at the start and end of HBOT (mean 43 sessions, 80 min at 243 kPa). RESULTS Patient age ranged from 39-70 years. All patients underwent surgical lumpectomy and radiotherapy prior to undergoing HBOT. The mean time between radiotherapy and HBOT was 70 months. Seven of the 13 patients underwent chemotherapy. Mean irradiated skin retraction time improved from 417 (SD 158) pre-HBOT to 171 (24) msec post-HBOT (P < 0.001). Mean pre-HBOT retraction time in the non-irradiated skin was 143 (20) msec and did not change. CONCLUSIONS This promising pilot study that suggests that HBOT may improve skin elasticity in patients with LRITF.
Collapse
Affiliation(s)
- Karan Pandey
- Department of Surgery/Hyperbaric Medicine, Amsterdam University Medical Centre, Location AMC, Amsterdam, The Netherlands
- Corresponding author: Karan Pandey, Department of Hyperbaric Medicine, Amsterdam University Medical Centre, Location AMC, Amsterdam, The Netherlands,
| | - David N Teguh
- Department of Surgery/Hyperbaric Medicine, Amsterdam University Medical Centre, Location AMC, Amsterdam, The Netherlands
| | - Robert A van Hulst
- Department of Surgery/Hyperbaric Medicine, Amsterdam University Medical Centre, Location AMC, Amsterdam, The Netherlands
- Department of Anesthesiology, Amsterdam University Medical Center, Location AMC, Amsterdam, The Netherlands
| |
Collapse
|
4
|
Procknow SS, Kozel BA. Emerging mechanisms of elastin transcriptional regulation. Am J Physiol Cell Physiol 2022; 323:C666-C677. [PMID: 35816641 PMCID: PMC9448287 DOI: 10.1152/ajpcell.00228.2022] [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: 06/01/2022] [Revised: 07/06/2022] [Accepted: 07/06/2022] [Indexed: 11/22/2022]
Abstract
Elastin provides recoil to tissues that stretch such as the lung, blood vessels, and skin. It is deposited in a brief window starting in the prenatal period and extending to adolescence in vertebrates, and then slowly turns over. Elastin insufficiency is seen in conditions such as Williams-Beuren syndrome and elastin-related supravalvar aortic stenosis, which are associated with a range of vascular and connective tissue manifestations. Regulation of the elastin (ELN) gene occurs at multiple levels including promoter activation/inhibition, mRNA stability, interaction with microRNAs, and alternative splicing. However, these mechanisms are incompletely understood. Better understanding of the processes controlling ELN gene expression may improve medicine's ability to intervene in these rare conditions, as well as to replace age-associated losses by re-initiating elastin production. This review describes what is known about the ELN gene promoter structure, transcriptional regulation by cytokines and transcription factors, and posttranscriptional regulation via mRNA stability and micro-RNA and highlights new approaches that may influence regenerative medicine.
Collapse
Affiliation(s)
- Sara S Procknow
- Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri
| | - Beth A Kozel
- Translational Vascular Medicine Branch, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland
| |
Collapse
|
5
|
Kronquist EK, Kaur M, Gober LM, Knutsen RH, Fu YP, Yu ZX, Donahue DR, Chen MY, Osgood S, Raja N, Levin MD, Barochia A, Kozel BA. Airflow Obstruction in Adults with Williams Syndrome and Mice with Elastin Insufficiency. Diagnostics (Basel) 2022; 12:diagnostics12061438. [PMID: 35741248 PMCID: PMC9221558 DOI: 10.3390/diagnostics12061438] [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: 04/18/2022] [Revised: 06/05/2022] [Accepted: 06/07/2022] [Indexed: 11/23/2022] Open
Abstract
Williams−Beuren syndrome (WS) results from the deletion of 25−27 coding genes, including elastin (ELN), on human chromosome 7q11.23. Elastin provides recoil to tissues; emphysema and chronic obstructive pulmonary disease have been linked to its destruction. Consequently, we hypothesized that elastin insufficiency would predispose to obstructive features. Twenty-two adults with WS (aged 18−55) and controls underwent pulmonary function testing, 6 min walk, and chest computed tomography (CT). Lung and airspace dimensions were assessed in Eln+/− and control mice via microCT and histology. The forced expiratory volume in 1 s (FEV1) and the ratio of FEV1 to forced vital capacity (FVC) were lower in adults with WS (p < 0.0001 and p < 0.05, respectively). The FEV1/FVC ratio was more frequently below the lower limit of normal in cases (p < 0.01). The ratio of residual volume to total lung capacity (RV/TLC, percent predicted) was higher in cases (p < 0.01), suggesting air trapping. People with WS showed reduced exercise capacity (p < 0.0001). In Eln+/− mice, ex vivo lung volumes were increased (p < 0.0001), with larger airspaces (p < 0.001). Together these data show that elastin insufficiency impacts lung physiology in the form of increased air trapping and obstruction, suggesting a role for lung function monitoring in adults with WS.
Collapse
Affiliation(s)
- Elise K. Kronquist
- National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA; (E.K.K.); (M.K.); (L.M.G.); (R.H.K.); (Y.-P.F.); (Z.-X.Y.); (M.Y.C.); (S.O.); (N.R.); (M.D.L.); (A.B.)
| | - Maninder Kaur
- National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA; (E.K.K.); (M.K.); (L.M.G.); (R.H.K.); (Y.-P.F.); (Z.-X.Y.); (M.Y.C.); (S.O.); (N.R.); (M.D.L.); (A.B.)
| | - Leah M. Gober
- National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA; (E.K.K.); (M.K.); (L.M.G.); (R.H.K.); (Y.-P.F.); (Z.-X.Y.); (M.Y.C.); (S.O.); (N.R.); (M.D.L.); (A.B.)
| | - Russell H. Knutsen
- National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA; (E.K.K.); (M.K.); (L.M.G.); (R.H.K.); (Y.-P.F.); (Z.-X.Y.); (M.Y.C.); (S.O.); (N.R.); (M.D.L.); (A.B.)
| | - Yi-Ping Fu
- National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA; (E.K.K.); (M.K.); (L.M.G.); (R.H.K.); (Y.-P.F.); (Z.-X.Y.); (M.Y.C.); (S.O.); (N.R.); (M.D.L.); (A.B.)
| | - Zu-Xi Yu
- National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA; (E.K.K.); (M.K.); (L.M.G.); (R.H.K.); (Y.-P.F.); (Z.-X.Y.); (M.Y.C.); (S.O.); (N.R.); (M.D.L.); (A.B.)
| | - Danielle R. Donahue
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20824, USA;
| | - Marcus Y. Chen
- National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA; (E.K.K.); (M.K.); (L.M.G.); (R.H.K.); (Y.-P.F.); (Z.-X.Y.); (M.Y.C.); (S.O.); (N.R.); (M.D.L.); (A.B.)
| | - Sharon Osgood
- National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA; (E.K.K.); (M.K.); (L.M.G.); (R.H.K.); (Y.-P.F.); (Z.-X.Y.); (M.Y.C.); (S.O.); (N.R.); (M.D.L.); (A.B.)
| | - Neelam Raja
- National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA; (E.K.K.); (M.K.); (L.M.G.); (R.H.K.); (Y.-P.F.); (Z.-X.Y.); (M.Y.C.); (S.O.); (N.R.); (M.D.L.); (A.B.)
| | - Mark D. Levin
- National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA; (E.K.K.); (M.K.); (L.M.G.); (R.H.K.); (Y.-P.F.); (Z.-X.Y.); (M.Y.C.); (S.O.); (N.R.); (M.D.L.); (A.B.)
| | - Amisha Barochia
- National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA; (E.K.K.); (M.K.); (L.M.G.); (R.H.K.); (Y.-P.F.); (Z.-X.Y.); (M.Y.C.); (S.O.); (N.R.); (M.D.L.); (A.B.)
| | - Beth A. Kozel
- National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA; (E.K.K.); (M.K.); (L.M.G.); (R.H.K.); (Y.-P.F.); (Z.-X.Y.); (M.Y.C.); (S.O.); (N.R.); (M.D.L.); (A.B.)
- Correspondence: ; Tel.: +1-301-451-2888
| |
Collapse
|
6
|
Kozel BA, Barak B, Ae Kim C, Mervis CB, Osborne LR, Porter M, Pober BR. Williams syndrome. Nat Rev Dis Primers 2021; 7:42. [PMID: 34140529 PMCID: PMC9437774 DOI: 10.1038/s41572-021-00276-z] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/13/2021] [Indexed: 11/09/2022]
Abstract
Williams syndrome (WS) is a relatively rare microdeletion disorder that occurs in as many as 1:7,500 individuals. WS arises due to the mispairing of low-copy DNA repetitive elements at meiosis. The deletion size is similar across most individuals with WS and leads to the loss of one copy of 25-27 genes on chromosome 7q11.23. The resulting unique disorder affects multiple systems, with cardinal features including but not limited to cardiovascular disease (characteristically stenosis of the great arteries and most notably supravalvar aortic stenosis), a distinctive craniofacial appearance, and a specific cognitive and behavioural profile that includes intellectual disability and hypersociability. Genotype-phenotype evidence is strongest for ELN, the gene encoding elastin, which is responsible for the vascular and connective tissue features of WS, and for the transcription factor genes GTF2I and GTF2IRD1, which are known to affect intellectual ability, social functioning and anxiety. Mounting evidence also ascribes phenotypic consequences to the deletion of BAZ1B, LIMK1, STX1A and MLXIPL, but more work is needed to understand the mechanism by which these deletions contribute to clinical outcomes. The age of diagnosis has fallen in regions of the world where technological advances, such as chromosomal microarray, enable clinicians to make the diagnosis of WS without formally suspecting it, allowing earlier intervention by medical and developmental specialists. Phenotypic variability is considerable for all cardinal features of WS but the specific sources of this variability remain unknown. Further investigation to identify the factors responsible for these differences may lead to mechanism-based rather than symptom-based therapies and should therefore be a high research priority.
Collapse
Affiliation(s)
- Beth A. Kozel
- Translational Vascular Medicine Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, USA
| | - Boaz Barak
- The Sagol School of Neuroscience and The School of Psychological Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Chong Ae Kim
- Department of Pediatrics, Universidade de São Paulo, São Paulo, Brazil
| | - Carolyn B. Mervis
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, USA
| | - Lucy R. Osborne
- Department of Medicine, University of Toronto, Ontario, Canada
| | - Melanie Porter
- Department of Psychology, Macquarie University, Sydney, Australia
| | - Barbara R. Pober
- Department of Pediatrics, Massachusetts General Hospital and Harvard Medical School, Boston, USA
| |
Collapse
|
7
|
Genes dysregulated in the blood of people with Williams syndrome are enriched in protein-coding genes positively selected in humans. Eur J Med Genet 2020; 63:103828. [DOI: 10.1016/j.ejmg.2019.103828] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 11/09/2019] [Accepted: 12/21/2019] [Indexed: 12/29/2022]
|
8
|
A transcriptomic study of Williams-Beuren syndrome associated genes in mouse embryonic stem cells. Sci Data 2019; 6:262. [PMID: 31695049 PMCID: PMC6834640 DOI: 10.1038/s41597-019-0281-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 10/11/2019] [Indexed: 02/07/2023] Open
Abstract
Williams-Beuren syndrome (WBS) is a relatively rare disease caused by the deletion of 1.5 to 1.8 Mb on chromosome 7 which contains approximately 28 genes. This multisystem disorder is mainly characterized by supravalvular aortic stenosis, mental retardation, and distinctive facial features. We generated mouse embryonic stem (ES) cells clones expressing each of the 4 human WBS genes (WBSCR1, GTF2I, GTF2IRD1 and GTF2IRD2) found in the specific delated region 7q11.23 causative of the WBS. We generated at least three stable clones for each gene with stable integration in the ROSA26 locus of a tetracycline-inducible upstream of the coding sequence of the genet tagged with a 3xFLAG epitope. Three clones for each gene were transcriptionally profiled in inducing versus non-inducing conditions for a total of 24 profiles. This small collection of human WBS-ES cell clones represents a resource to facilitate the study of the function of these genes during differentiation. Measurement(s) | transcription profiling assay • regulation of transcription, DNA-templated | Technology Type(s) | microarray assay • gene overexpression | Factor Type(s) | WBSCR1, GTF2I, GTF2IRD1 and GTF2IRD2 | Sample Characteristic - Organism | Homo sapiens |
Machine-accessible metadata file describing the reported data: 10.6084/m9.figshare.10003127
Collapse
|
9
|
Niego A, Benítez-Burraco A. Williams Syndrome, Human Self-Domestication, and Language Evolution. Front Psychol 2019; 10:521. [PMID: 30936846 PMCID: PMC6431629 DOI: 10.3389/fpsyg.2019.00521] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 02/22/2019] [Indexed: 01/06/2023] Open
Abstract
Language evolution resulted from changes in our biology, behavior, and culture. One source of these changes might be human self-domestication. Williams syndrome (WS) is a clinical condition with a clearly defined genetic basis which results in a distinctive behavioral and cognitive profile, including enhanced sociability. In this paper we show evidence that the WS phenotype can be satisfactorily construed as a hyper-domesticated human phenotype, plausibly resulting from the effect of the WS hemideletion on selected candidates for domestication and neural crest (NC) function. Specifically, we show that genes involved in animal domestication and NC development and function are significantly dysregulated in the blood of subjects with WS. We also discuss the consequences of this link between domestication and WS for our current understanding of language evolution.
Collapse
Affiliation(s)
- Amy Niego
- Ph.D. Program, Faculty of Humanities, University of Huelva, Huelva, Spain
| | - Antonio Benítez-Burraco
- Department of Spanish, Linguistics, and Theory of Literature, Faculty of Philology, University of Seville, Seville, Spain
| |
Collapse
|
10
|
Zhang L, Zhang X, You G, Yu Y, Fu Q. A novel dNTP-limited PCR and HRM assay to detect Williams-Beuren syndrome. Clin Chim Acta 2018; 481:171-176. [PMID: 29550276 DOI: 10.1016/j.cca.2018.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 03/13/2018] [Accepted: 03/13/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND Williams-Beuren syndrome (WBS) is caused by a microdeletion of chromosome arm 7q11.23. A rapid and inexpensive genotyping method to detect microdeletion on 7q11.23 needs to be developed for the diagnosis of WBS. This study describes the development of a new type of molecular diagnosis method to detect microdeletion on 7q11.23 based upon high-resolution melting (HRM). METHODS Four genes on 7q11.23 were selected as the target genes for the deletion genotyping. dNTP-limited duplex PCR was used to amplify the reference gene, CFTR, and one of the four genes respectively on 7q11.23. An HRM assay was performed on the PCR products, and the height ratio of the negative derivative peaks between the target gene and reference gene was employed to analyze the copy number variation of the target region. RESULTS A new genotyping method for detecting 7q11.23 deletion was developed based upon dNTP-limited PCR and HRM, which cost only 96 min. Samples from 15 WBS patients and 12 healthy individuals were genotyped by this method in a blinded fashion, and the sensitivity and specificity was 100% (95% CI, 0.80-1, and 95% CI, 0.75-1, respectively) which was proved by CytoScan HD array. SIGNIFICANCE The HRM assay we developed is an rapid, inexpensive, and highly accurate method for genotyping 7q11.23 deletion. It is potentially useful in the clinical diagnosis of WBS.
Collapse
Affiliation(s)
- Lichen Zhang
- Department of Laboratory Medicine, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, PR China; School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200127, PR China
| | - Xiaoqing Zhang
- Department of Laboratory Medicine, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, PR China
| | - Guoling You
- Department of Laboratory Medicine, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, PR China
| | - Yongguo Yu
- Department of Pediatric Endocrinology/Genetics, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, Institute for Pediatric Research, Shanghai, China.
| | - Qihua Fu
- Department of Laboratory Medicine, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, PR China.
| |
Collapse
|
11
|
Duque Lasio ML, Kozel BA. Elastin-driven genetic diseases. Matrix Biol 2018; 71-72:144-160. [PMID: 29501665 DOI: 10.1016/j.matbio.2018.02.021] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 02/23/2018] [Accepted: 02/23/2018] [Indexed: 02/08/2023]
Abstract
Elastic fibers provide recoil to tissues that undergo repeated deformation, such as blood vessels, lungs and skin. Composed of elastin and its accessory proteins, the fibers are produced within a restricted developmental window and are stable for decades. Their eventual breakdown is associated with a loss of tissue resiliency and aging. Rare alteration of the elastin (ELN) gene produces disease by impacting protein dosage (supravalvar aortic stenosis, Williams Beuren syndrome and Williams Beuren region duplication syndrome) and protein function (autosomal dominant cutis laxa). This review highlights aspects of the elastin molecule and its assembly process that contribute to human disease and also discusses potential therapies aimed at treating diseases of elastin insufficiency.
Collapse
Affiliation(s)
| | - Beth A Kozel
- National Institutes of Health, National Heart Lung and Blood Institute, Bethesda, MD, USA.
| |
Collapse
|
12
|
Bogdan C, Moldovan ML, Man IM, Crișan M. Preliminary study on the development of an antistretch marks water-in-oil cream: ultrasound assessment, texture analysis, and sensory analysis. Clin Cosmet Investig Dermatol 2016; 9:249-55. [PMID: 27660478 PMCID: PMC5019162 DOI: 10.2147/ccid.s107298] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Purpose Striae distensae represent the result of the failure of the dermis to sustain intrinsic mechanical forces. Intensive moisturization of the lesions and use of emollient oils have been recommended for the prevention and treatment of striae distensae rubra. The aim of this research was to formulate an emollient water-in-oil cosmetic cream containing argan oil, which may be helpful in the prevention or early treatment of striae distensae. Patients and methods Sensory evaluation of the consistency, firmness, adhesiveness, oiliness, spreadability, and rapidity of penetration into the skin was evaluated by 22 volunteers using 10-point scales for each descriptor. The instrumental characterization of the cream was performed using Brookfield® CT3 Texture Analyzer. The cutaneous changes induced by the topical use of the cream were evaluated by assessing the thickness of the epidermis, hydration, and elasticity of the skin using DermaLab® Combo scanner. Results Ultrasound measurements showed an improvement in the elasticity of the epidermis following the application of cream. The product was well tolerated and appreciated by the consumers in terms of its spreadability, penetration ability, and lack of stickiness. The values recorded for texture analysis were firmness 10.16±0.15 mJ, adhesiveness 30.94±6.87 g, consistency 1229.50±119.78 g, spreadability 481.50±39 g, and stringiness 0.56±0.09 mJ. Conclusion A water-in-oil cream containing argan oil and emollient ingredients with appropriate physical characteristics was obtained. In vivo study of clinical efficacy revealed a positive effect on increasing the skin elasticity, suggesting that the cream may be helpful in the prevention or early treatment of striae distensae.
Collapse
Affiliation(s)
- Cătălina Bogdan
- Department of Dermopharmacy and Cosmetics, Faculty of Pharmacy
| | | | - Ioana Manuela Man
- Department of Histology, Faculty of Medicine, University of Medicine and Pharmacy "Iuliu Hațieganu", Cluj-Napoca, Romania
| | - Maria Crișan
- Department of Histology, Faculty of Medicine, University of Medicine and Pharmacy "Iuliu Hațieganu", Cluj-Napoca, Romania
| |
Collapse
|
13
|
Heinz A, Huertas ACM, Schräder CU, Pankau R, Gosch A, Schmelzer CEH. Elastins from patients with Williams-Beuren syndrome and healthy individuals differ on the molecular level. Am J Med Genet A 2016; 170:1832-42. [DOI: 10.1002/ajmg.a.37638] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 03/10/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Andrea Heinz
- Faculty of Natural Sciences I, Institute of Pharmacy; Martin Luther University Halle-Wittenberg; Halle (Saale) Germany
| | - Angela C. Mora Huertas
- Faculty of Natural Sciences I, Institute of Pharmacy; Martin Luther University Halle-Wittenberg; Halle (Saale) Germany
| | - Christoph U. Schräder
- Faculty of Natural Sciences I, Institute of Pharmacy; Martin Luther University Halle-Wittenberg; Halle (Saale) Germany
| | - Rainer Pankau
- Finkelstein-Klinik für Kinder-und Jugendmedizin; Heidekreis-Klinikum; Walsrode Germany
| | - Angela Gosch
- Fakultät für angewandte Sozialwissenschaften FK 11; Hochschule München; München Germany
| | - Christian E. H. Schmelzer
- Faculty of Natural Sciences I, Institute of Pharmacy; Martin Luther University Halle-Wittenberg; Halle (Saale) Germany
| |
Collapse
|
14
|
Kozel BA, Su CT, Danback JR, Minster RL, Madan-Khetarpal S, McConnell JS, Mac Neal MK, Levine KL, Wilson RC, Sciurba FC, Urban Z. Biomechanical properties of the skin in cutis laxa. J Invest Dermatol 2014; 134:2836-2838. [PMID: 24844858 PMCID: PMC4199921 DOI: 10.1038/jid.2014.224] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Beth A Kozel
- Department of Pediatrics, Washington University School of Medicine, St Louis, Missouri, USA
| | - Chi-Ting Su
- Department of Human Genetics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania, USA
| | - Joshua R Danback
- Department of Pediatrics, Washington University School of Medicine, St Louis, Missouri, USA
| | - Ryan L Minster
- Department of Human Genetics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania, USA
| | - Suneeta Madan-Khetarpal
- Division of Medical Genetics, Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Juliann S McConnell
- Division of Medical Genetics, Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Meghan K Mac Neal
- Department of Human Genetics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania, USA
| | - Kara L Levine
- Department of Human Genetics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania, USA
| | - Robert C Wilson
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Frank C Sciurba
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Zsolt Urban
- Department of Human Genetics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania, USA.
| |
Collapse
|