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Duzenli T, Uysal BS, Ulas B, Kayhan G. Geleophysic dysplasia and Weill-Marchesani syndrome: ADAMTSL2 a possible common gene. Ophthalmic Genet 2024; 45:499-505. [PMID: 39044700 DOI: 10.1080/13816810.2024.2358973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 05/13/2024] [Accepted: 05/19/2024] [Indexed: 07/25/2024]
Abstract
BACKGROUND Geleophysic dysplasia (GD) and Weill-Marchesani syndrome (WMS) are two rare genetic disorders that are classified as acromelic dysplasias and have many common features that overlap clinically and genetically in some patients. Both diseases are characterized by acromelic features, including short stature, brachydactyly, joint limitations, and cardiac involvement. WMS is distinguished from GD mainly by ocular abnormalities, including high myopia, microspherophakia, ectopia lentis, and glaucoma and the absence of the life-threatening airway stenosis and early lethality. These two syndromes are allelic diseases of the FBN1 gene, with the gene families including A Disintegrin and Metalloproteinase with Thrombospondin motifs (ADAMTS) and latent transforming growth factor-beta-binding protein (LTBP). Although the ADAMTSL2 gene has been associated only with GD within the acromelic dysplasias, there have been reports of patients with ADAMTSL2-related GD exhibiting ocular abnormalities that resemble WMS. METHODS AND RESULTS We present a 24-year-old female patient with microspherophakia, ectopia lentis, myopia, short stature, joint stiffness, thick skin, short hands and feet, and cardiac valve disease consistent with WMS. The virtual panel analysis, including WMS and GD-related genes, revealed a homozygous c.493 G>A (p.Ala165Thr) variant in the ADAMTSL2 gene (NM_014694.4), which has been previously reported in a geleophysic dysplasia patient. CONCLUSIONS Mounting evidence suggests that GD and WMS may be allelic diseases of the ADAMTSL2 gene.
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Affiliation(s)
- Tarik Duzenli
- Faculty of Medicine, Department of Medical Genetics, Gazi University, Ankara, Turkey
| | - Betul Seher Uysal
- Faculty of Medicine, Department of Ophthalmology, Gazi University, Ankara, Turkey
| | - Berkay Ulas
- Faculty of Medicine, Department of Ophthalmology, Gazi University, Ankara, Turkey
| | - Gulsum Kayhan
- Faculty of Medicine, Department of Medical Genetics, Gazi University, Ankara, Turkey
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2
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Tian F, Dong X, Yuan R, Hou X, Qing J, Li Y. Case Report: Two different acromelic dysplasia phenotypes in a Chinese family caused by a missense mutation in FBN1 and a literature review. Front Pediatr 2024; 12:1428513. [PMID: 39077065 PMCID: PMC11284092 DOI: 10.3389/fped.2024.1428513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Accepted: 07/02/2024] [Indexed: 07/31/2024] Open
Abstract
Background Acromelic dysplasia caused by FBN1 mutation includes acromicric dysplasia (AD), geleophysic dysplasia 2 (GD2), and Weill-Marchesani syndrome 2 (WMS2). All three diseases share severe short stature and brachydactyly. Besides phenotypic similarity, there is a molecular genetic overlap among them, as identical FBN1 gene mutations have been identified in patients with AD, GD2, and WMS2. However, no family with different acromelic dysplasia phenotypes due to the same variant has been described in English reports. Case report The proband presented with typical facial features, severe short stature, short limbs, stubby hands and feet and radiological abnormalities. Her elder sister and mother had similar physical features. In addition, her elder sister was found to have aortic valve stenosis by echocardiography. Mutation analysis demonstrated a heterozygous missense mutation, c.5179C>T (p.Arg1727Trp) in exon 42 of the FBN1. The proband and her mother were diagnosed with AD, and her elder sister with GD2. The proband was treated with recombinant human growth hormone (rhGH) and had a body length gain of 0.72 SDS in half a year. Conclusion These findings expand the phenotypic spectrum of FBN1 gene mutations and highlight that identical FBN1 genotypes can result in different phenotypes of acromelic dysplasia in a family. The efficacy of rhGH therapy in patients with acromelic dysplasia is controversial. More follow-up is needed on the long-term efficacy of rhGH therapy.
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Affiliation(s)
- Fengyan Tian
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Lin AE, Scimone ER, Thom RP, Balaguru D, Kinane TB, Moschovis PP, Cohen MS, Tan W, Hague CD, Dannheim K, Levitsky LL, Lilly E, DiGiacomo DV, Masse KM, Kadzielski SM, Zar-Kessler CA, Ginns LC, Neumeyer AM, Colvin MK, Elder JS, Learn CP, Mou H, Weagle KM, Buch KA, Butler WE, Alhadid K, Musolino PL, Sultana S, Bandyopadhyay D, Rapalino O, Peacock ZS, Chou EL, Heidary G, Dorfman AT, Morris SA, Bergin JD, Rayment JH, Schimmenti LA, Lindsay ME. Emergence of the natural history of Myhre syndrome: 47 patients evaluated in the Massachusetts General Hospital Myhre Syndrome Clinic (2016-2023). Am J Med Genet A 2024:e63638. [PMID: 38779990 DOI: 10.1002/ajmg.a.63638] [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: 03/03/2024] [Revised: 04/03/2024] [Accepted: 04/11/2024] [Indexed: 05/25/2024]
Abstract
Myhre syndrome is an increasingly diagnosed ultrarare condition caused by recurrent germline autosomal dominant de novo variants in SMAD4. Detailed multispecialty evaluations performed at the Massachusetts General Hospital (MGH) Myhre Syndrome Clinic (2016-2023) and by collaborating specialists have facilitated deep phenotyping, genotyping and natural history analysis. Of 47 patients (four previously reported), most (81%) patients returned to MGH at least once. For patients followed for at least 5 years, symptom progression was observed in all. 55% were female and 9% were older than 18 years at diagnosis. Pathogenic variants in SMAD4 involved protein residues p.Ile500Val (49%), p.Ile500Thr (11%), p.Ile500Leu (2%), and p.Arg496Cys (38%). Individuals with the SMAD4 variant p.Arg496Cys were less likely to have hearing loss, growth restriction, and aortic hypoplasia than the other variant groups. Those with the p.Ile500Thr variant had moderate/severe aortic hypoplasia in three patients (60%), however, the small number (n = 5) prevented statistical comparison with the other variants. Two deaths reported in this cohort involved complex cardiovascular disease and airway stenosis, respectively. We provide a foundation for ongoing natural history studies and emphasize the need for evidence-based guidelines in anticipation of disease-specific therapies.
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Affiliation(s)
- Angela E Lin
- Medical Genetics and Metabolism, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Eleanor R Scimone
- Medical Genetics and Metabolism, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Robyn P Thom
- Lurie Center for Autism, Mass General for Children, Boston, Massachusetts, USA
- Department of Psychiatry, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Duraisamy Balaguru
- Pediatric Cardiology, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - T Bernard Kinane
- Pediatric Pulmonary and Sleep Medicine, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Peter P Moschovis
- Pediatric Pulmonary and Sleep Medicine, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Michael S Cohen
- Pediatric Otorhinolaryngology, Massachusetts Eye and Ear, Boston, Massachusetts, USA
| | - Weizhen Tan
- Pediatric Nephrology, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Cole D Hague
- Department of Psychiatry, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Katelyn Dannheim
- Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Lynne L Levitsky
- Pediatric Endocrinology, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Evelyn Lilly
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Daniel V DiGiacomo
- Division of Rheumatology, Allergy and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Kara M Masse
- Department of Physical Therapy, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Sarah M Kadzielski
- Lurie Center for Autism, Mass General for Children, Boston, Massachusetts, USA
- Pediatric Gastroenterology, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Claire A Zar-Kessler
- Pediatric Gastroenterology, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Leo C Ginns
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Ann M Neumeyer
- Lurie Center for Autism, Mass General for Children, Boston, Massachusetts, USA
- Pediatric Neurology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Mary K Colvin
- Department of Psychiatry, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Jack S Elder
- Division of Pediatric Urology, Department of Urology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Christopher P Learn
- Division of Cardiology, Department of Medicine, Corrigan Minehan Heart Center, Adult Congenital Heart Disease, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Hongmei Mou
- Mucosal Immunology and Biology Research Center, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Kathryn M Weagle
- Department of Child Life, Pediatric Imaging Program, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Karen A Buch
- Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - William E Butler
- Department of Neurosurgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Kenda Alhadid
- Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Patricia L Musolino
- Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Sadia Sultana
- Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | | | - Otto Rapalino
- Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Zachary S Peacock
- Oral and Maxillofacial Surgery, Massachusetts General Hospital and Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Elizabeth L Chou
- Division of Vascular and Endovascular Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Gena Heidary
- Department of Ophthalmology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Aaron T Dorfman
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Shaine A Morris
- Division of Cardiology, Department of Pediatrics, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas, USA
| | - James D Bergin
- Division of Cardiology, Department of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Jonathan H Rayment
- Respiratory Medicine, Department of Pediatrics, British Columbia Children's Hospital and University of British Columbia, Vancouver, British Columbia, Canada
| | - Lisa A Schimmenti
- Department of Clinical Genomics, Mayo Clinic, Rochester, Minnesota, USA
- Department of Otorhinolaryngology, Head and Neck Surgery, Mayo Clinic, Rochester, Minnesota, USA
- Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota, USA
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota, USA
| | - Mark E Lindsay
- Pediatric Cardiology, Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts, USA
- Pediatric Cardiology, Department of Pediatrics, Cardiovascular Genetics Program, Cardiology Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
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Bai Y, Sun Y, Yu C, Xia Y, Wu J, Wang L, Gao Y, Tu X, Kong X. Causative role of a novel intronic indel variant in FBN1 and maternal germinal mosaicism in Marfan syndrome. Orphanet J Rare Dis 2024; 19:209. [PMID: 38773661 PMCID: PMC11110283 DOI: 10.1186/s13023-024-03139-4] [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: 07/06/2023] [Accepted: 03/20/2024] [Indexed: 05/24/2024] Open
Abstract
BACKGROUND Marfan syndrome (MFS) is an autosomal dominant connective tissue disease with wide clinical heterogeneity, and mainly caused by pathogenic variants in fibrillin-1 (FBN1). METHODS A Chinese 4-generation MFS pedigree with 16 family members was recruited and exome sequencing (ES) was performed in the proband. Transcript analysis (patient RNA and minigene assays) and in silico structural analysis were used to determine the pathogenicity of the variant. In addition, germline mosaicism in family member (Ι:1) was assessed using quantitative fluorescent polymerase chain reaction (QF-PCR) and short tandem repeat PCR (STR) analyses. RESULTS Two cis-compound benign intronic variants of FBN1 (c.3464-4 A > G and c.3464-5G > A) were identified in the proband by ES. As a compound variant, c.3464-5_3464-4delGAinsAG was found to be pathogenic and co-segregated with MFS. RNA studies indicated that aberrant transcripts were found only in patients and mutant-type clones. The variant c.3464-5_3464-4delGAinsAG caused erroneous integration of a 3 bp sequence into intron 28 and resulted in the insertion of one amino acid in the protein sequence (p.Ile1154_Asp1155insAla). Structural analyses suggested that p.Ile1154_Asp1155insAla affected the protein's secondary structure by interfering with one disulfide bond between Cys1140 and Cys1153 and causing the extension of an anti-parallel β sheet in the calcium-binding epidermal growth factor-like (cbEGF)13 domain. In addition, the asymptomatic family member Ι:1 was deduced to be a gonadal mosaic as assessed by inconsistent results of sequencing and STR analysis. CONCLUSIONS To our knowledge, FBN1 c.3464-5_3464-4delGAinsAG is the first identified pathogenic intronic indel variant affecting non-canonical splice sites in this gene. Our study reinforces the importance of assessing the pathogenic role of intronic variants at the mRNA level, with structural analysis, and the occurrence of mosaicism.
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Affiliation(s)
- Ying Bai
- Genetic and Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Yue Sun
- Genetic and Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Chenguang Yu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yanjie Xia
- Genetic and Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Jing Wu
- Department of Pediatrics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Li Wang
- Genetic and Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Yong Gao
- BGI-Wuhan, BGI-Shenzhen, Wuhan, 430074, China
| | - Xin Tu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, China.
| | - Xiangdong Kong
- Genetic and Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
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Arnaud P, Mougin Z, Baujat G, Drouin-Garraud V, El Chehadeh S, Gouya L, Odent S, Jondeau G, Boileau C, Hanna N, Le Goff C. Pathogenic variants affecting the TB5 domain of the fibrillin-1 protein: not only in geleophysic/acromicric dysplasias but also in Marfan syndrome. J Med Genet 2024; 61:469-476. [PMID: 38458756 DOI: 10.1136/jmg-2023-109646] [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: 09/18/2023] [Accepted: 01/18/2024] [Indexed: 03/10/2024]
Abstract
BACKGROUND Marfan syndrome (MFS) is a multisystem disease with a unique combination of skeletal, cardiovascular and ocular features. Geleophysic/acromicric dysplasias (GPHYSD/ACMICD), characterised by short stature and extremities, are described as 'the mirror image' of MFS. The numerous FBN1 pathogenic variants identified in MFS are located all along the gene and lead to the same final pathogenic sequence. Conversely, in GPHYSD/ACMICD, the 28 known heterozygous FBN1 pathogenic variants all affect exons 41-42 encoding TGFβ-binding protein-like domain 5 (TB5). METHODS Since 1996, more than 5000 consecutive probands have been referred nationwide to our laboratory for molecular diagnosis of suspected MFS. RESULTS We identified five MFS probands carrying distinct heterozygous pathogenic in-frame variants affecting the TB5 domain of FBN1. The clinical data showed that the probands displayed a classical form of MFS. Strikingly, one missense variant affects an amino acid that was previously involved in GPHYSD. CONCLUSION Surprisingly, pathogenic variants in the TB5 domain of FBN1 can lead to two opposite phenotypes: GPHYSD/ACMICD and MFS, suggesting the existence of different pathogenic sequences with the involvement of tissue specificity. Further functional studies are ongoing to determine the precise role of this domain in the physiopathology of each disease.
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Affiliation(s)
- Pauline Arnaud
- Département de Génétique, Assistance Publique - Hopitaux de Paris, Paris, France
- U1148 LVTS, INSERM, Paris, Île-de-France, France
- Centre de Référence Maladies Rares Syndrome de Marfan et apparentés, Hôpital Bichat, APHP, Paris, Île-de-France, France
| | | | - Genevieve Baujat
- Département de Génétique, AP-HP, Hôpital Necker-Enfants malades, AP-HP, Paris, Île-de-France, France
| | | | - Salima El Chehadeh
- Service de Génétique Médicale, Hôpital de Hautepierre, CHU de Strasbourg, Strasbourg, Grand Est, France
| | - Laurent Gouya
- Centre de Référence Maladies Rares Syndrome de Marfan et apparentés, Hôpital Bichat, APHP, Paris, Île-de-France, France
| | - Sylvie Odent
- Service de Génétique Clinique, CLAD Ouest, CHU Rennes, Rennes, Bretagne, France
- UMR 6290, IGDR, Rennes, Bretagne, France
| | - Guillaume Jondeau
- U1148 LVTS, INSERM, Paris, Île-de-France, France
- Centre de Référence Maladies Rares Syndrome de Marfan et apparentés, Hôpital Bichat, APHP, Paris, Île-de-France, France
| | - Catherine Boileau
- Département de Génétique, Assistance Publique - Hopitaux de Paris, Paris, France
- U1148 LVTS, INSERM, Paris, Île-de-France, France
| | - Nadine Hanna
- Département de Génétique, Assistance Publique - Hopitaux de Paris, Paris, France
- U1148 LVTS, INSERM, Paris, Île-de-France, France
- Centre de Référence Maladies Rares Syndrome de Marfan et apparentés, Hôpital Bichat, APHP, Paris, Île-de-France, France
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Taye N, Redhead C, Hubmacher D. Secreted ADAMTS-like proteins as regulators of connective tissue function. Am J Physiol Cell Physiol 2024; 326:C756-C767. [PMID: 38284126 DOI: 10.1152/ajpcell.00680.2023] [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: 12/07/2023] [Revised: 01/23/2024] [Accepted: 01/23/2024] [Indexed: 01/30/2024]
Abstract
The extracellular matrix (ECM) determines functional properties of connective tissues through structural components, such as collagens, elastic fibers, or proteoglycans. The ECM also instructs cell behavior through regulatory proteins, including proteases, growth factors, and matricellular proteins, which can be soluble or tethered to ECM scaffolds. The secreted a disintegrin and metalloproteinase with thrombospondin type 1 repeats/motifs-like (ADAMTSL) proteins constitute a family of regulatory ECM proteins that are related to ADAMTS proteases but lack their protease domains. In mammals, the ADAMTSL protein family comprises seven members, ADAMTSL1-6 and papilin. ADAMTSL orthologs are also present in the worm, Caenorhabditis elegans, and the fruit fly, Drosophila melanogaster. Like other matricellular proteins, ADAMTSL expression is characterized by tight spatiotemporal regulation during embryonic development and early postnatal growth and by cell type- and tissue-specific functional pleiotropy. Although largely quiescent during adult tissue homeostasis, reexpression of ADAMTSL proteins is frequently observed in the context of physiological and pathological tissue remodeling and during regeneration and repair after injury. The diverse functions of ADAMTSL proteins are further evident from disorders caused by mutations in individual ADAMTSL proteins, which can affect multiple organ systems. In addition, genome-wide association studies (GWAS) have linked single nucleotide polymorphisms (SNPs) in ADAMTSL genes to complex traits, such as lung function, asthma, height, body mass, fibrosis, or schizophrenia. In this review, we summarize the current knowledge about individual members of the ADAMTSL protein family and highlight recent mechanistic studies that began to elucidate their diverse functions.
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Affiliation(s)
- Nandaraj Taye
- Orthopedic Research Laboratories, Leni & Peter W. May Department of Orthopedics, Icahn School of Medicine at Mount Sinai, New York, New York, United States
| | - Charlene Redhead
- Orthopedic Research Laboratories, Leni & Peter W. May Department of Orthopedics, Icahn School of Medicine at Mount Sinai, New York, New York, United States
| | - Dirk Hubmacher
- Orthopedic Research Laboratories, Leni & Peter W. May Department of Orthopedics, Icahn School of Medicine at Mount Sinai, New York, New York, United States
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7
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Rypdal KB, Apte SS, Lunde IG. Emerging roles for the ADAMTS-like family of matricellular proteins in cardiovascular disease through regulation of the extracellular microenvironment. Mol Biol Rep 2024; 51:280. [PMID: 38324186 PMCID: PMC10850197 DOI: 10.1007/s11033-024-09255-5] [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: 12/05/2023] [Accepted: 01/12/2024] [Indexed: 02/08/2024]
Abstract
Dysregulation of the extracellular matrix (ECM) occurs widely across cardiovascular pathologies. Recent work has revealed important roles for the «a disintegrin-like and metalloprotease domain with thrombospondin-type 1 motifs like" (ADAMTSL) family of secreted glycoproteins in cardiovascular tissues during development and disease. Key insights in this regard have come from naturally occurring gene mutations in humans and animals that result in severe diseases with cardiovascular manifestations or aortopathies. Expression of ADAMTSL genes is greatly increased in the myocardium during heart failure. Genetically modified mice recapitulate phenotypes of patients with ADAMTSL mutations and demonstrate important functions in the ECM. The novel functions thus disclosed are intriguing because, while these proteins are neither structural, nor proteases like the related ADAMTS proteases, they appear to act as regulatory, i.e., matricellular proteins. Evidence from genetic variants, genetically engineered mouse mutants, and in vitro investigations have revealed regulatory functions of ADAMTSLs related to fibrillin microfibrils and growth factor signaling. Interestingly, the ability to regulate transforming growth factor (TGF)β signaling may be a shared characteristic of some ADAMTSLs. TGFβ signaling is important in cardiovascular development, health and disease and a central driver of ECM remodeling and cardiac fibrosis. New strategies to target dysregulated TGFβ signaling are warranted in aortopathies and cardiac fibrosis. With their emerging roles in cardiovascular tissues, the ADAMTSL proteins may provide causative genes, diagnostic biomarkers and novel treatment targets in cardiovascular disease. Here, we discuss the relevance of ADAMTSLs to cardiovascular medicine.
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Affiliation(s)
- Karoline Bjarnesdatter Rypdal
- KG Jebsen Center for Cardiac Biomarkers, Institute for Clinical Medicine, University of Oslo, Oslo, Norway.
- Oslo Center for Clinical Heart Research, Department of Cardiology Ullevaal, Oslo University Hospital, Oslo, Norway.
| | - Suneel S Apte
- Department of Biomedical Engineering, Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | - Ida G Lunde
- KG Jebsen Center for Cardiac Biomarkers, Institute for Clinical Medicine, University of Oslo, Oslo, Norway
- Oslo Center for Clinical Heart Research, Department of Cardiology Ullevaal, Oslo University Hospital, Oslo, Norway
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8
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Li L, Huang J, Liu Y. The extracellular matrix glycoprotein fibrillin-1 in health and disease. Front Cell Dev Biol 2024; 11:1302285. [PMID: 38269088 PMCID: PMC10806136 DOI: 10.3389/fcell.2023.1302285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 12/19/2023] [Indexed: 01/26/2024] Open
Abstract
Fibrillin-1 (FBN1) is a large, cysteine-rich, calcium binding extracellular matrix glycoprotein encoded by FBN1 gene. It serves as a structural component of microfibrils and provides force-bearing mechanical support in elastic and nonelastic connective tissue. As such, mutations in the FBN1 gene can cause a wide variety of genetic diseases such as Marfan syndrome, an autosomal dominant disorder characterized by ocular, skeletal and cardiovascular abnormalities. FBN1 also interacts with numerous microfibril-associated proteins, growth factors and cell membrane receptors, thereby mediating a wide range of biological processes such as cell survival, proliferation, migration and differentiation. Dysregulation of FBN1 is involved in the pathogenesis of many human diseases, such as cancers, cardiovascular disorders and kidney diseases. Paradoxically, both depletion and overexpression of FBN1 upregulate the bioavailability and signal transduction of TGF-β via distinct mechanisms in different settings. In this review, we summarize the structure and expression of FBN1 and present our current understanding of the functional role of FBN1 in various human diseases. This knowledge will allow to develop better strategies for therapeutic intervention of FBN1 related diseases.
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Affiliation(s)
- Li Li
- State Key Laboratory of Organ Failure Research, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, Guangzhou, China
| | - Junxin Huang
- State Key Laboratory of Organ Failure Research, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, Guangzhou, China
| | - Youhua Liu
- State Key Laboratory of Organ Failure Research, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, Guangzhou, China
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9
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Iwanaga Y, Tsuji K, Nishimura A, Tateishi K, Kakiuchi M, Tsuji T. A nonsense mutation in mouse Adamtsl2 causes uterine hypoplasia and an irregular estrous cycle. Mamm Genome 2023; 34:559-571. [PMID: 37656189 PMCID: PMC10627917 DOI: 10.1007/s00335-023-10016-1] [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: 12/26/2022] [Accepted: 08/15/2023] [Indexed: 09/02/2023]
Abstract
The spontaneous mutation stubby (stb) in mice causes chondrodysplasia and male infertility due to impotence through autosomal recessive inheritance. In this study, we conducted linkage analysis to localize the stb locus within a 1.6 Mb region on mouse chromosome 2 and identified a nonsense mutation in Adamtsl2 of stb/stb mice. Histological analysis revealed disturbed endochondral ossification with a reduced hypertrophic chondrocyte layer and stiff skin with a thickened dermal layer. These phenotypes are similar to those observed in humans and mice with ADAMTSL2/Adamtsl2 mutations. Moreover, stb/stb female mice exhibited severe uterine hypoplasia at 5 weeks of age and irregular estrous cycles at 10 weeks of age. In normal mice, Adamtsl2 was more highly expressed in the ovary and pituitary gland than in the uterus, and this expression was decreased in stb/stb mice. These findings suggest that Adamtsl2 may function in these organs rather than in the uterus. Thus, we analyzed Gh expression in the pituitary gland and plasma estradiol and IGF1 levels, which are required for the development of the female reproductive tract. There was no significant difference in Gh expression and estradiol levels, whereas IGF1 levels in stb/stb mice were significantly reduced to 54-59% of those in +/+ mice. We conclude that Adamtsl2 is required for the development of the uterus and regulation of the estrous cycle in female mice, and decreased IGF1 may be related to these abnormalities.
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Affiliation(s)
- Yuka Iwanaga
- Graduate School of Environmental, Life, Natural Science and Technology, Okayama University, Okayama, 700-8530, Japan
| | - Kaori Tsuji
- Graduate School of Environmental, Life, Natural Science and Technology, Okayama University, Okayama, 700-8530, Japan
| | - Ayaka Nishimura
- Graduate School of Environmental, Life, Natural Science and Technology, Okayama University, Okayama, 700-8530, Japan
| | - Kouji Tateishi
- Graduate School of Environmental, Life, Natural Science and Technology, Okayama University, Okayama, 700-8530, Japan
| | - Misa Kakiuchi
- Graduate School of Environmental, Life, Natural Science and Technology, Okayama University, Okayama, 700-8530, Japan
| | - Takehito Tsuji
- Graduate School of Environmental, Life, Natural Science and Technology, Okayama University, Okayama, 700-8530, Japan.
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10
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Costantini A, Guasto A, Cormier-Daire V. TGF-β and BMP Signaling Pathways in Skeletal Dysplasia with Short and Tall Stature. Annu Rev Genomics Hum Genet 2023; 24:225-253. [PMID: 37624666 DOI: 10.1146/annurev-genom-120922-094107] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2023]
Abstract
The transforming growth factor β (TGF-β) and bone morphogenetic protein (BMP) signaling pathways play a pivotal role in bone development and skeletal health. More than 30 different types of skeletal dysplasia are now known to be caused by pathogenic variants in genes that belong to the TGF-β superfamily and/or regulate TGF-β/BMP bioavailability. This review describes the latest advances in skeletal dysplasia that is due to impaired TGF-β/BMP signaling and results in short stature (acromelic dysplasia and cardiospondylocarpofacial syndrome) or tall stature (Marfan syndrome). We thoroughly describe the clinical features of the patients, the underlying genetic findings, and the pathomolecular mechanisms leading to disease, which have been investigated mainly using patient-derived skin fibroblasts and mouse models. Although no pharmacological treatment is yet available for skeletal dysplasia due to impaired TGF-β/BMP signaling, in recent years advances in the use of drugs targeting TGF-β have been made, and we also discuss these advances.
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Affiliation(s)
- Alice Costantini
- Paris Cité University, INSERM UMR 1163, Institut Imagine, Paris, France; , ,
- Department of Molecular Medicine and Surgery and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Alessandra Guasto
- Paris Cité University, INSERM UMR 1163, Institut Imagine, Paris, France; , ,
| | - Valérie Cormier-Daire
- Paris Cité University, INSERM UMR 1163, Institut Imagine, Paris, France; , ,
- Reference Center for Skeletal Dysplasia, Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, Paris, France
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11
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Marelli S, Micaglio E, Taurino J, Salvi P, Rurali E, Perrucci GL, Dolci C, Udugampolage NS, Caruso R, Gentilini D, Trifiro' G, Callus E, Frigiola A, De Vincentiis C, Pappone C, Parati G, Pini A. Marfan Syndrome: Enhanced Diagnostic Tools and Follow-up Management Strategies. Diagnostics (Basel) 2023; 13:2284. [PMID: 37443678 DOI: 10.3390/diagnostics13132284] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/01/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023] Open
Abstract
Marfan syndrome (MFS) is a rare inherited autosomic disorder, which encompasses a variety of systemic manifestations caused by mutations in the Fibrillin-1 encoding gene (FBN1). Cardinal clinical phenotypes of MFS are highly variable in terms of severity, and commonly involve cardiovascular, ocular, and musculoskeletal systems with a wide range of manifestations, such as ascending aorta aneurysms and dissection, mitral valve prolapse, ectopia lentis and long bone overgrowth, respectively. Of note, an accurate and prompt diagnosis is pivotal in order to provide the best treatment to the patients as early as possible. To date, the diagnosis of the syndrome has relied upon a systemic score calculation as well as DNA mutation identification. The aim of this review is to summarize the latest MFS evidence regarding the definition, differences and similarities with other connective tissue pathologies with severe systemic phenotypes (e.g., Autosomal dominant Weill-Marchesani syndrome, Loeys-Dietz syndrome, Ehlers-Danlos syndrome) and clinical assessment. In this regard, the management of MFS requires a multidisciplinary team in order to accurately control the evolution of the most severe and potentially life-threatening complications. Based on recent findings in the literature and our clinical experience, we propose a multidisciplinary approach involving specialists in different clinical fields (i.e., cardiologists, surgeons, ophthalmologists, orthopedics, pneumologists, neurologists, endocrinologists, geneticists, and psychologists) to comprehensively characterize, treat, and manage MFS patients with a personalized medicine approach.
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Affiliation(s)
- Susan Marelli
- Cardiovascular-Genetic Center, IRCCS Policlinico San Donato, 20097 Milan, Italy
| | - Emanuele Micaglio
- Arrhythmia and Electrophysiology Department, IRCCS Policlinico San Donato, 20097 Milan, Italy
| | - Jacopo Taurino
- Cardiovascular-Genetic Center, IRCCS Policlinico San Donato, 20097 Milan, Italy
| | - Paolo Salvi
- Istituto Auxologico Italiano, Cardiology Unit, IRCCS, 20133 Milan, Italy
| | - Erica Rurali
- Unit of Vascular Biology and Regenerative Medicine, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy
| | - Gianluca L Perrucci
- Unit of Vascular Biology and Regenerative Medicine, Centro Cardiologico Monzino IRCCS, 20138 Milan, Italy
| | - Claudia Dolci
- Laboratory of Functional Anatomy of the Stomatognathic System (LAFAS), Department of Biomedical Sciences for Health, Università degli Studi di Milano, 20133 Milan, Italy
| | | | - Rosario Caruso
- Clinical Research Service, IRCCS Policlinico San Donato, 20097 Milan, Italy
- Department of Biomedical Sciences for Health, University of Milan, 20133 Milan, Italy
| | - Davide Gentilini
- Department of Brain and Behavioral Sciences, University of Pavia, 27100 Pavia, Italy
- Bioinformatics and Statistical Genomics Unit, Istituto Auxologico Italiano IRCCS, Cusano Milanino, University of Milano-Bicocca, 20095 Milan, Italy
| | - Giuliana Trifiro'
- Cardiovascular-Genetic Center, IRCCS Policlinico San Donato, 20097 Milan, Italy
| | - Edward Callus
- Department of Biomedical Sciences for Health, University of Milan, 20133 Milan, Italy
- Clinical Psychology Service, IRCCS Policlinico San Donato, 20097 Milan, Italy
| | - Alessandro Frigiola
- Department of Congenital Cardiac Surgery, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy
- Association "Bambini Cardiopatici nel Mondo" Non-Governmental Organization (NGO), 20123 Milan, Italy
| | - Carlo De Vincentiis
- Department of Cardiothoracic, Vascular Anaesthesia and Intensive Care, IRCCS Policlinico San Donato, 20097 Milan, Italy
- Department of Cardiac Surgery, IRCCS Policlinico San Donato, 20097 Milan, Italy
| | - Carlo Pappone
- Arrhythmia and Electrophysiology Department, IRCCS Policlinico San Donato, 20097 Milan, Italy
- Institute of Molecular and Translational Cardiology, IRCCS Policlinico San Donato, 20097 Milan, Italy
- Faculty of Medicine and Surgery, Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Gianfranco Parati
- Istituto Auxologico Italiano, Cardiology Unit, IRCCS, 20133 Milan, Italy
- Department of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy
| | - Alessandro Pini
- Cardiovascular-Genetic Center, IRCCS Policlinico San Donato, 20097 Milan, Italy
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12
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Hassani M, Taghizadeh S, Farahzad Broujeni A, Habibi M, Banitalebi S, Kasiri M, Sadeghi A, Nozari A. A Novel Missense Mutation in the TGF-β-binding Protein-Like Domain 3 of FBN1 Causes Weill-Marchesani Syndrome with Intellectual Disability. Adv Biomed Res 2023; 12:114. [PMID: 37288014 PMCID: PMC10241635 DOI: 10.4103/abr.abr_138_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 07/26/2022] [Accepted: 08/22/2022] [Indexed: 06/09/2023] Open
Abstract
Background Weill-Marchesani syndrome (WMS) is a rare connective tissue disorder characterized by locus heterogeneity and variable expressivity. Patients suffering from WMS are described by short stature, brachydactyly, joint stiffness, congenital heart defects, and eye abnormalities. This disorder is inherited in two different modes; the autosomal dominant form of the disease occurs due to a mutation in FBN1, and the recessive form results from mutations in ADAMTS10, ADAMTS17, or LTP2 genes. Materials and Methods The family recruited in this study was a consanguineous Iranian family with an intellectually disabled girl referred to the Sadra Genetics laboratory, Shahrekord, Iran. The clinical history of family members was investigated. Whole-Exome Sequencing (WES) for the proband was performed. Sanger sequencing was used to assess the segregation of candidate variants in the other family members. Results Whole-exome sequencing analysis revealed a novel heterozygote mutation in the proband located at the third TGF-β-binding protein-like (TB) domain of the FBN1 gene (NM000138: c.2066A>G: (p. Glu689Gly), NP_000129.3, in exon 17 of the gene). Co-segregation analysis with Sanger sequencing confirmed this mutation in the affected members of the pedigree. Conclusion Our findings represent an autosomal dominant form of specific WMS resulting from a substitution mutation in the FBN1 gene. In addition to the typical manifestations of the disorder, mild intellectual disability (ID) was identified in the 8-year-old proband. Given the fact that ID is primarily reported in ADAMTS10 mutated cases, this family was clinically and genetically a novel case.
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Affiliation(s)
- Mahdieh Hassani
- Department of Medical Genetics, School of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Sara Taghizadeh
- Translational Ophthalmology Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Anahita Farahzad Broujeni
- Shahrekord Neuroscience Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Mahvash Habibi
- Department of Medical Genetics, Sadra Medical Genetics Lab, Shahrekord, Iran
| | - Setareh Banitalebi
- Department of Medical Genetics, Sadra Medical Genetics Lab, Shahrekord, Iran
| | - Mahbubeh Kasiri
- Department of Medical Genetics, Medical Genetics Laboratory, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Alireza Sadeghi
- Department of Medical Genetics, Sadra Medical Genetics Lab, Shahrekord, Iran
| | - Ahoura Nozari
- Department of Medical Genetics, Sadra Medical Genetics Lab, Shahrekord, Iran
- Department of Medical Genetics, Medical Genetics Laboratory, Shahrekord University of Medical Sciences, Shahrekord, Iran
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13
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Secreted protease ADAMTS18 in development and disease. Gene 2023; 858:147169. [PMID: 36632911 DOI: 10.1016/j.gene.2023.147169] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 12/07/2022] [Accepted: 01/03/2023] [Indexed: 01/11/2023]
Abstract
ADAMTS18 was identified in 2002 as a member of the ADAMTS family of 19 secreted Zinc-dependent metalloproteinases. Prior to 2016, ADAMTS18 was known as a candidate gene associated with a wide range of pathologies, particularly various malignancies and eye disorders. However, functions and substrates of ADAMTS18 in normal conditions were unknown. Since 2016, with the development of Adamts18 knockout models, many studies had been conducted on the Adamts18 gene in vivo. These studies revealed that ADAMTS18 is essential for the morphology and organogenesis of several epithelial organs (e.g., lung, kidney, breast, salivary glands, and lacrimal glands), vascular and neuronal systems, adipose tissue, and reproductive tracts. In this review, we describe the current understanding of ADAMTS18 and its substrates and regulators. Limitations in translating new findings on ADAMTS18 to clinical practice are also discussed.
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14
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Shen R, Feng JH, Yang SP. Acromicric dysplasia caused by a mutation of fibrillin 1 in a family: A case report. World J Clin Cases 2023; 11:2036-2042. [PMID: 36998968 PMCID: PMC10044957 DOI: 10.12998/wjcc.v11.i9.2036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/20/2023] [Accepted: 03/03/2023] [Indexed: 03/16/2023] Open
Abstract
BACKGROUND Acromicric dysplasia (AD) is a rare skeletal dysplasia. Its incidence is < 1/1000000, and only approximately 60 cases are reported worldwide. It is a disease characterized by severe short stature, short hands and feet, facial abnormalities, normal intelligence, and bone abnormalities. Unlike other skeletal dysplasia, AD has a mild clinical phenotype, mainly characterized by short stature. Extensive endocrine examination has not revealed a potential cause. The clinical effect of growth hormone therapy is still uncertain.
CASE SUMMARY We report a clinical phenotype of AD associated with mutations in the fibrillin 1 (FBN1) (OMIM 102370) gene c.5183C>T (p. Ala1728Val) in three people from a Chinese family. A 4-year-old member of the family first visited the hospital because of slow growth and short stature for 2 years, but no abnormalities were found after a series of laboratory tests, echocardiography, pituitary magnetic resonance imaging, and ophthalmological examination. Recombinant human growth hormone (rhGH) was used to treat the patient for > 5 years. The efficacy of rhGH was apparent in the first year of treatment; the height increased from -3.64 standard deviation score (SDS) to -2.88 SDS, while the efficacy weakened from the second year. However, long-term follow-up is required to clarify the efficacy of rhGH.
CONCLUSION FBN1-related AD has genetic heterogeneity and/or clinical variability, which brings challenges to the evaluation of clinical treatment. rhGH is effective for treatment of AD, but long-term follow-up is needed to clarify the effect.
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Affiliation(s)
- Ren Shen
- Department of Pediatrics, The People's Hospital of Yuhuan, Taizhou 317600, Zhejiang Province, China
| | - Jian-Hua Feng
- Department of Hematology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang Province, China
| | - Shan-Pu Yang
- Department of Pediatrics, The People's Hospital of Yuhuan, Taizhou 317600, Zhejiang Province, China
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15
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Yilmaz UC, Evin F, Onay H, Ozen S, Darcan S, Simsek DG. Molecular genetic etiology by whole exome sequence analysis in cases with familial type 1 diabetes mellitus without HLA haplotype predisposition or incomplete predisposition. J Pediatr Endocrinol Metab 2023; 36:64-73. [PMID: 36343308 DOI: 10.1515/jpem-2022-0295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 09/28/2022] [Indexed: 11/09/2022]
Abstract
OBJECTIVES Familial transmission is observed in approximately 10% of cases with type 1 diabetes mellitus (T1DM). The most important gene determining susceptibility is the human leukocyte antigen complex (HLA) located on chromosome 6. More than 50 susceptible loci are associated with T1DM susceptibility have been identified in genes other than HLA. In this study, it was aimed to investigate the molecular genetic etiology by whole-exome sequence (WES) analysis in cases with familial T1DM with no or weakly detected HLA tissue type susceptibility. We aimed to identify new genes responsible for the development of type 1 diabetes and to reveal new genes that have not been shown in the literature before. METHODS Cases with at least one T1DM diagnosis in first-degree relatives were included in the study. In the first step, HLA DQ2 and DQ8 loci, which are known to be associated with T1DM susceptibility, were investigated by. In the second step, the presence of variants that could explain the situation was investigated by WES analysis in patients who were negative for both HLA DQ2 and HLA DQ8 haplotypes, HLA DQ2 negative, HLA DQ8 positive, and HLA DQ2 positive and HLA DQ8 negative patients. RESULTS The mean age and duration of diabetes of the 30 cases (Girl/Male: 17/13) were 14.9 ± 6 and 7.56 ± 3.84 years, respectively. There was consanguineous marriage in 5 (16%) of the families. As a result of filtering all exome sequence analysis data of two cases with DQ2 (DQB1*02) (-) and DQ8 (DQB1*03:02) (-), seven cases with DQ2 (DQB1*02) (+) and DQ8 (DQB1*03:02) (-), and one case with DQ2 (DQB1*02) (-) and DQ8 (DQB1*03:02) (+), seven different variants in seven different genes were detected in five cases. The pathogenicity of the detected variants were determined according to the "American College of Medical Genetics and Genomics (ACMG)" criteria. These seven variants detected were evaluated as high-score VUS (Variants of unknown/uncertain significance). In the segregation study conducted for the mutation in the POLG gene detected in case 5, this variant was detected in the mother of the case and his brother with T1DM. Segregation studies are ongoing for variants detected in other affected individuals in the family. CONCLUSIONS In conclusion, in this study, seven different variants in seven different genes were detected in five patients by WES analysis in familial T1DM patients with no or weak HLA tissue type susceptibility. These seven variants detected were evaluated as high-score VUS. POLG might be a novel candidate gene responsible for susceptibility to T1DM. Non-HLA genes directly responsible for the development of T1DM were not detected in any of the cases.
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Affiliation(s)
- Uğur Cem Yilmaz
- Department of Pediatrics, Ege University Faculty of Medicine, Izmir, Turkey
| | - Ferda Evin
- Division of Pediatric Endocrinology and Diabetes, Ege University Faculty of Medicine, Izmir, Turkey
| | - Huseyin Onay
- Multigen Genetic Diseases Diagnosis Center, Izmir, Turkey
| | - Samim Ozen
- Division of Pediatric Endocrinology and Diabetes, Ege University Faculty of Medicine, Izmir, Turkey
| | - Sukran Darcan
- Division of Pediatric Endocrinology and Diabetes, Ege University Faculty of Medicine, Izmir, Turkey
| | - Damla Goksen Simsek
- Division of Pediatric Endocrinology and Diabetes, Ege University Faculty of Medicine, Izmir, Turkey
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Connally NJ, Nazeen S, Lee D, Shi H, Stamatoyannopoulos J, Chun S, Cotsapas C, Cassa CA, Sunyaev SR. The missing link between genetic association and regulatory function. eLife 2022; 11:e74970. [PMID: 36515579 PMCID: PMC9842386 DOI: 10.7554/elife.74970] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 12/02/2022] [Indexed: 12/15/2022] Open
Abstract
The genetic basis of most traits is highly polygenic and dominated by non-coding alleles. It is widely assumed that such alleles exert small regulatory effects on the expression of cis-linked genes. However, despite the availability of gene expression and epigenomic datasets, few variant-to-gene links have emerged. It is unclear whether these sparse results are due to limitations in available data and methods, or to deficiencies in the underlying assumed model. To better distinguish between these possibilities, we identified 220 gene-trait pairs in which protein-coding variants influence a complex trait or its Mendelian cognate. Despite the presence of expression quantitative trait loci near most GWAS associations, by applying a gene-based approach we found limited evidence that the baseline expression of trait-related genes explains GWAS associations, whether using colocalization methods (8% of genes implicated), transcription-wide association (2% of genes implicated), or a combination of regulatory annotations and distance (4% of genes implicated). These results contradict the hypothesis that most complex trait-associated variants coincide with homeostatic expression QTLs, suggesting that better models are needed. The field must confront this deficit and pursue this 'missing regulation.'
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Affiliation(s)
- Noah J Connally
- Department of Biomedical Informatics, Harvard Medical SchoolBostonUnited States
- Brigham and Women’s Hospital, Division of Genetics, Harvard Medical SchoolBostonUnited States
- Program in Medical and Population Genetics, Broad Institute of MIT and HarvardCambridgeUnited States
| | - Sumaiya Nazeen
- Department of Biomedical Informatics, Harvard Medical SchoolBostonUnited States
- Brigham and Women’s Hospital, Division of Genetics, Harvard Medical SchoolBostonUnited States
- Brigham and Women’s Hospital, Department of Neurology, Harvard Medical SchoolBostonUnited States
| | - Daniel Lee
- Department of Biomedical Informatics, Harvard Medical SchoolBostonUnited States
- Brigham and Women’s Hospital, Division of Genetics, Harvard Medical SchoolBostonUnited States
- Program in Medical and Population Genetics, Broad Institute of MIT and HarvardCambridgeUnited States
| | - Huwenbo Shi
- Program in Medical and Population Genetics, Broad Institute of MIT and HarvardCambridgeUnited States
- Department of Epidemiology, Harvard T.H. Chan School of Public HealthBostonUnited States
| | | | - Sung Chun
- Division of Pulmonary Medicine, Boston Children’s HospitalBostonUnited States
| | - Chris Cotsapas
- Program in Medical and Population Genetics, Broad Institute of MIT and HarvardCambridgeUnited States
- Department of Neurology, Yale Medical SchoolNew HavenUnited States
- Department of Genetics, Yale Medical SchoolNew HavenUnited States
| | - Christopher A Cassa
- Brigham and Women’s Hospital, Division of Genetics, Harvard Medical SchoolBostonUnited States
- Program in Medical and Population Genetics, Broad Institute of MIT and HarvardCambridgeUnited States
| | - Shamil R Sunyaev
- Department of Biomedical Informatics, Harvard Medical SchoolBostonUnited States
- Brigham and Women’s Hospital, Division of Genetics, Harvard Medical SchoolBostonUnited States
- Program in Medical and Population Genetics, Broad Institute of MIT and HarvardCambridgeUnited States
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17
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Saltarelli MA, Quarta A, Chiarelli F. Growth plate extracellular matrix defects and short stature in children. Ann Pediatr Endocrinol Metab 2022; 27:247-255. [PMID: 36567461 PMCID: PMC9816467 DOI: 10.6065/apem.2244120.060] [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: 05/16/2022] [Accepted: 06/29/2022] [Indexed: 12/27/2022] Open
Abstract
Many etiological factors causing short stature have already been identified in humans. In the last few years, the advent of new techniques for the detection of chromosomal and molecular abnormalities has made it possible to better identify patients with genetic causes of growth failure. Some of these factors directly affect the development and growth of the skeleton, since they damage the epiphyseal growth plate, where linear growth occurs, influencing chondrogenesis. In particular, defects in genes involved in the organization and function of the growth plate are responsible for several well-known conditions with short stature. These genes play a pivotal role in various mechanisms involving the extracellular matrix, intracellular signaling, paracrine signaling, endocrine signaling, and epigenetic regulation. In this review, we will discuss the genes involved in extracellular matrix disorders. The identification of genetic defects in linear growth failure is important for clinicians and researchers in order to improve the care of children affected by growth disorders.
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Affiliation(s)
| | - Alessia Quarta
- Department of Pediatrics, University of Chieti, Chieti, Italy
| | - Francesco Chiarelli
- Department of Pediatrics, University of Chieti, Chieti, Italy,Address for correspondence: Francesco Chiarelli Department of Pediatrics, University of Chieti, Via dei Vestini, 5 Chieti, I-66100, Italy
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18
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Quitter F, Flury M, Waldmueller S, Schubert T, Koehler K, Huebner A. Acromicric dysplasia due to a novel missense mutation in the fibrillin 1 gene in a three-generation family. J Pediatr Endocrinol Metab 2022; 35:1443-1447. [PMID: 35942587 DOI: 10.1515/jpem-2022-0287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 07/10/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Short stature is one of the most common reasons for consulting a paediatric endocrinologist. Targeted diagnosis of familial short stature can be challenging due to a broad spectrum of differential diagnoses. CASE PRESENTATION Here we report a novel mutation in the fibrillin 1 gene (FBN1) in six family members causing a mild phenotype of acromicric dysplasia. Additionally, we present the effects of growth hormone therapy in one of the affected children. CONCLUSIONS Acromicric dysplasia is a very rare skeletal dysplasia with a prevalence of <1 of 1.000.000 with only about 60 cases being reported worldwide. It is characterized by short stature, acromelia, mild facial dysmorphy but normal intelligence. This study aims to exemplify the clinical and molecular features of FBN1-related acromicric dysplasia and illustrates its pleiotropy by presenting a new, mild phenotype.
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Affiliation(s)
- Friederike Quitter
- Children's Hospital, Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Monika Flury
- Children's Hospital, Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Stephan Waldmueller
- University Hospital Tübingen, Institut für Medizinische Genetik und Angewandte Genomik Tübingen, Germany
| | - Tina Schubert
- Children's Hospital, Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Katrin Koehler
- Children's Hospital, Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Angela Huebner
- Children's Hospital, Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
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19
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Carneiro RK, Gatti GT, Beck RC, Amadori A, Oliveira TD, Feliciano MAR, Alievi MM, Ferreira MP. Musladin-Lueke Syndrome in a Dog: Case Report. Top Companion Anim Med 2022; 51:100694. [PMID: 35850448 DOI: 10.1016/j.tcam.2022.100694] [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: 03/26/2021] [Revised: 07/05/2022] [Accepted: 07/11/2022] [Indexed: 12/14/2022]
Abstract
The aim of this study is to report the case of a 4-month-old Beagle dog diagnosed with Musladin-Lueke syndrome. The dog appeared to walk on the digits ("tiptoes") with all limbs during ambulation and rigid extension of the carpus, elbow, tarsus, and knee joints during ambulation. Thickening of the fur and auricular cartilage, reduction in radiocarpal, and tibiotarsal joint amplitude, macrocephaly, and lateralized eyes were noticed on physical examination. Echocardiography showed reduced mobility and altered (tortuous) valve morphology. Bilateral abdominal cryptorchidism was confirmed by ultrasonography. Musladin-Lueke syndrome was the presumptive diagnosis, based on the clinical signs presented. The diagnosis was confirmed after DNA testing performed by serial collection of saliva. This is the first paper that describes unprecedented cardiac and reproductive changes of Musladin-Lueke syndrome in which the dog was followed for 2 years, presenting a good quality of life.
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Affiliation(s)
- R K Carneiro
- Department of Veterinary Surgery, UNESP, Jaboticabal, SP, Brazil
| | - G T Gatti
- Department of Diagnostic Imaging, UFRGS, Porto Alegre, RS, Brazil
| | - R C Beck
- Department of Anesthesiology, UFRGS, Porto Alegre, RS, Brazil
| | - A Amadori
- Department of Diagnostic Imaging, UFRGS, Porto Alegre, RS, Brazil
| | - T D Oliveira
- Department of Anesthesiology, UFRGS, Porto Alegre, RS, Brazil
| | - M A R Feliciano
- Department of Large Animal Clinic, UFSM, Santa Maria, RS, Brazil
| | - M M Alievi
- Department of Animal Medicine, UFRGS, Porto Alegre, RS, Brazil
| | - M P Ferreira
- Department of Animal Medicine, UFRGS, Porto Alegre, RS, Brazil.
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20
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Chen ZX, Jia WN, Jiang YX. Genotype-phenotype correlations of marfan syndrome and related fibrillinopathies: Phenomenon and molecular relevance. Front Genet 2022; 13:943083. [PMID: 36176293 PMCID: PMC9514320 DOI: 10.3389/fgene.2022.943083] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 07/01/2022] [Indexed: 11/13/2022] Open
Abstract
Marfan syndrome (MFS, OMIM: 154700) is a heritable multisystemic disease characterized by a wide range of clinical manifestations. The underlying molecular defect is caused by variants in the FBN1. Meanwhile, FBN1 variants are also detected in a spectrum of connective tissue disorders collectively termed as ‘type I fibrillinopathies’. A multitude of FBN1 variants is reported and most of them are unique in each pedigree. Although MFS is being considered a monogenic disorder, it is speculated that the allelic heterogeneity of FBN1 variants contributes to various manifestations, distinct prognoses, and differential responses to the therapies in affected patients. Significant progress in the genotype–phenotype correlations of MFS have emerged in the last 20 years, though, some of the associations were still in debate. This review aims to update the recent advances in the genotype-phenotype correlations of MFS and related fibrillinopathies. The molecular bases and pathological mechanisms are summarized for better support of the observed correlations. Other factors contributing to the phenotype heterogeneity and future research directions were also discussed. Dissecting the genotype-phenotype correlation of FBN1 variants and related disorders will provide valuable information in risk stratification, prognosis, and choice of therapy.
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Affiliation(s)
- Ze-Xu Chen
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.,NHC Key Laboratory of Myopia (Fudan University); Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China.,Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Wan-Nan Jia
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.,NHC Key Laboratory of Myopia (Fudan University); Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China.,Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Yong-Xiang Jiang
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.,NHC Key Laboratory of Myopia (Fudan University); Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China.,Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
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21
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Li M, Li Y, Liu H, Zhou H, Xie W, Peng Q. Case report: A homozygous ADAMTSL2 missense variant causes geleophysic dysplasia with high similarity to Weill-Marchesani syndrome. Front Genet 2022; 13:1014188. [PMID: 36246610 PMCID: PMC9554500 DOI: 10.3389/fgene.2022.1014188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 09/12/2022] [Indexed: 11/30/2022] Open
Abstract
Background: Geleophysic dysplasia and Weill-Marchesani syndrome from the acromelic dysplasias group of genetic skeletal disorders share remarkable clinical and genetic overlap. Methods: Ophthalmological, physical, radiological examinations were conducted with a female patient in her early 30 s. Whole exome sequencing followed by Sanger sequencing validation was performed to identify the genetic cause. Results: The patient, born to consanguineous Chinese parents, presented with microspherophakia, lens subluxation, high myopia, short statue, small hands and feet, stiff joints, and thickened skin. A diagnosis of Weill-Marchesani syndrome was initially made for her. However, genetic testing reveals that the patient is homozygous for the c.1966G>A (p.Gly656Ser) variant in ADAMTSL2, and that the patient’s healthy mother and daughter are heterozygous for the variant. As mutations in ADAMTSL2 are known to cause autosomal recessive geleophysic dysplasia, the patient is re-diagnosed with geleophysic dysplasia in terms of her genotype and phenotype. Conclusion: The present study describes the clinical phenotype of the homozygous ADAMTSL2 p. Gly656Ser variant, which increases our understanding of the genotype-phenotype correlation in acromelic dysplasias.
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Affiliation(s)
- Mojiang Li
- Hunan University of Chinese Medicine, Changsha, China
- The First Affiliated Hospital of Hunan University of Chinese Medicine, Changsha, China
- Department of Vision Center, Liuyang Jili Hospital (Liuyang Eye Hospital), Changsha, China
| | - Yingshu Li
- Department of Vision Center, Liuyang Jili Hospital (Liuyang Eye Hospital), Changsha, China
| | - Huixing Liu
- Department of Ophthalmology (Division II), Liuyang Jili Hospital (Liuyang Eye Hospital), Changsha, China
| | - Haiyan Zhou
- National Health Committee Key Laboratory of Birth Defects for Research and Prevention, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, China
- *Correspondence: Haiyan Zhou, ; Wanqin Xie, ; Qinghua Peng,
| | - Wanqin Xie
- National Health Committee Key Laboratory of Birth Defects for Research and Prevention, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, China
- *Correspondence: Haiyan Zhou, ; Wanqin Xie, ; Qinghua Peng,
| | - Qinghua Peng
- Hunan University of Chinese Medicine, Changsha, China
- The First Affiliated Hospital of Hunan University of Chinese Medicine, Changsha, China
- *Correspondence: Haiyan Zhou, ; Wanqin Xie, ; Qinghua Peng,
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22
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Wu H, Gao S, Xia L, Li P. Evolutionary rates of body-size-related genes and ecological factors involved in driving body size evolution of squamates. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.1007409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Body size is one of the most important traits of an organism. Among reptiles, both lizards and snakes show body size differences that span a similar six orders of magnitude variation. However, the molecular mechanisms underlying body size variation in squamates remain obscure. Here, we performed comparative genomic analyses of 101 body-size-related genes from 28 reptilian genomes. Phylogenetic analysis by maximum likelihood (PAML) revealed that snakes showed higher evolutionary rates in body-size-related genes, and had an almost two-fold increase in the number of positively selected genes (∼20.3%) compared with lizards (∼8.9%). The high similarities in dN/dS values were obtained between the branches of large-bodied lizards and large-bodied snakes by Spearman correlation analysis. Combining the results from site model, branch-site model and clade model analyses, we found some key genes regulating the evolution of body size in squamates, such as COL10A1, GHR, NPC1, GALNS, CDKN2C, FBN1, and LCORL. Phylogenetic generalized least squares (PGLS) indicated that AKT1, BMP1, IGF1, SOX5, SOX7 in lizards and BMP5, BMP7, GPC6, SH2B3, SOX17 in snakes were significantly correlated with body length and body mass. Furthermore, ecological factors had varying degrees of impact on body size and the evolutionary rate of body-size-related genes in squamates. Intriguingly, climate had little effect on body size of lizards and snakes, but the contribution of climate-related factors to the variation in evolutionary rate of body-size-related genes were relatively higher. Our study lays a foundation for a comprehensive understanding of genetic mechanisms of body size evolution in squamates during the process of adapting to terrestrial life.
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23
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Delhon L, Mougin Z, Jonquet J, Bibimbou A, Dubail J, Bou-Chaaya C, Goudin N, Le Goff W, Boileau C, Cormier-Daire V, Le Goff C. The critical role of the TB5 domain of Fibrillin-1 in endochondral ossification. Hum Mol Genet 2022; 31:3777-3788. [PMID: 35660865 DOI: 10.1093/hmg/ddac131] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 05/12/2022] [Accepted: 05/25/2022] [Indexed: 11/13/2022] Open
Abstract
Mutations in the Fibrillin-1 (FBN1) gene are responsible for the autosomal dominant form of Geleophysic Dysplasia (GD), which is characterized by short stature and extremities, thick skin, and cardiovascular disease. All known FBN1 mutations in GD patients are localized within the region encoding the TB5 (TGF-β binding protein-like 5) domain of this protein. Herein, we generated a knock-in mouse model, Fbn1Y1698C by introducing the p.Tyr1696Cys mutation from a GD patient into the TB5 domain of murine Fbn1 to elucidate the specific role of this domain in endochondral ossification. We found that both Fbn1Y1698C/+ and Fbn1Y1698C/Y1698C mice exhibited a reduced stature reminiscent of the human GD phenotype. The Fbn1 point mutation introduced in these mice affected the growth plate formation owing to abnormal chondrocyte differentiation such that mutant chondrocytes failed to establish a dense microfibrillar network composed of fibrillin-1. This original Fbn1 mutant mouse model offers new insight into the pathogenic events underlying GD. Our findings suggest that the etiology of GD involves the dysregulation of the ECM composed by abnormal fibrillin-1 microfibril network impacting the differentiation of the chondrocytes.
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Affiliation(s)
- Laure Delhon
- Université Paris Cité, INSERM UMR1163, Laboratory of molecular and physiopathological bases of osteochondrodysplasia, Imagine Institute, Paris, France
| | - Zakaria Mougin
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM U1148, Laboratory of Vascular Translational Science, Bichat Hospital, Paris, France
| | - Jérémie Jonquet
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM U1148, Laboratory of Vascular Translational Science, Bichat Hospital, Paris, France
| | - Angélique Bibimbou
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM U1148, Laboratory of Vascular Translational Science, Bichat Hospital, Paris, France
| | - Johanne Dubail
- Université Paris Cité, INSERM UMR1163, Laboratory of molecular and physiopathological bases of osteochondrodysplasia, Imagine Institute, Paris, France
| | - Cynthia Bou-Chaaya
- Université Paris Cité, INSERM UMR1163, Laboratory of molecular and physiopathological bases of osteochondrodysplasia, Imagine Institute, Paris, France
| | - Nicolas Goudin
- SFR Necker, Imaging Platform, Necker-Enfants Malades Hospital, Paris France
| | - Wilfried Le Goff
- Sorbonne University, Inserm UMR_S1166, Institute of Cardiometabolism and Nutrition (ICAN), Hôpital de la Pitié, Paris, F-75013, France
| | - Catherine Boileau
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM U1148, Laboratory of Vascular Translational Science, Bichat Hospital, Paris, France.,Departement of Genetics, AP-HP, Bichat Hospital, Paris, France
| | - Valérie Cormier-Daire
- Université Paris Cité, INSERM UMR1163, Laboratory of molecular and physiopathological bases of osteochondrodysplasia, Imagine Institute, Paris, France.,Department of Medical Genetics, Reference Center for Skeletal dysplasia AP-HP, Necker-Enfants Malades Hospital, Paris, France
| | - Carine Le Goff
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM U1148, Laboratory of Vascular Translational Science, Bichat Hospital, Paris, France
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24
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Zhang X, Alanazi YF, Jowitt TA, Roseman AM, Baldock C. Elastic Fibre Proteins in Elastogenesis and Wound Healing. Int J Mol Sci 2022; 23:4087. [PMID: 35456902 PMCID: PMC9027394 DOI: 10.3390/ijms23084087] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/31/2022] [Accepted: 04/03/2022] [Indexed: 12/30/2022] Open
Abstract
As essential components of our connective tissues, elastic fibres give tissues such as major blood vessels, skin and the lungs their elasticity. Their formation is complex and co-ordinately regulated by multiple factors. In this review, we describe key players in elastogenesis: fibrillin-1, tropoelastin, latent TGFβ binding protein-4, and fibulin-4 and -5. We summarise their roles in elastogenesis, discuss the effect of their mutations on relevant diseases, and describe their interactions involved in forming the elastic fibre network. Moreover, we look into their roles in wound repair for a better understanding of their potential application in tissue regeneration.
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Affiliation(s)
- Xinyang Zhang
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK; (X.Z.); (T.A.J.)
- School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK;
| | - Yasmene F. Alanazi
- Department of Biochemistry, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia;
| | - Thomas A. Jowitt
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK; (X.Z.); (T.A.J.)
| | - Alan M. Roseman
- School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK;
| | - Clair Baldock
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK; (X.Z.); (T.A.J.)
- School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK;
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25
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O-fucosylation of thrombospondin type 1 repeats is essential for ECM remodeling and signaling during bone development. Matrix Biol 2022; 107:77-96. [DOI: 10.1016/j.matbio.2022.02.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 01/18/2022] [Accepted: 02/08/2022] [Indexed: 12/12/2022]
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26
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Wells KM, Baumel M, McCusker CD. The Regulation of Growth in Developing, Homeostatic, and Regenerating Tetrapod Limbs: A Minireview. Front Cell Dev Biol 2022; 9:768505. [PMID: 35047496 PMCID: PMC8763381 DOI: 10.3389/fcell.2021.768505] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 11/19/2021] [Indexed: 01/29/2023] Open
Abstract
The size and shape of the tetrapod limb play central roles in their functionality and the overall physiology of the organism. In this minireview we will discuss observations on mutant animal models and humans, which show that the growth and final size of the limb is most impacted by factors that regulate either limb bud patterning or the elongation of the long bones. We will also apply the lessons that have been learned from embryos to how growth could be regulated in regenerating limb structures and outline the challenges that are unique to regenerating animals.
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27
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Arnaud P, Mougin Z, Boileau C, Le Goff C. Cooperative Mechanism of ADAMTS/ ADAMTSL and Fibrillin-1 in the Marfan Syndrome and Acromelic Dysplasias. Front Genet 2021; 12:734718. [PMID: 34912367 PMCID: PMC8667168 DOI: 10.3389/fgene.2021.734718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 11/03/2021] [Indexed: 11/18/2022] Open
Abstract
The term “fibrillinopathies” gathers various diseases with a wide spectrum of clinical features and severity but all share mutations in the fibrillin genes. The first described fibrillinopathy, Marfan syndrome (MFS), is a multisystem disease with a unique combination of skeletal, thoracic aortic aneurysm (TAA) and ocular features. The numerous FBN1 mutations identified in MFS are located all along the gene, leading to the same pathogenic mechanism. The geleophysic/acromicric dysplasias (GD/AD), characterized by short stature, short extremities, and joint limitation are described as “the mirror image” of MFS. Previously, in GD/AD patients, we identified heterozygous FBN1 mutations all affecting TGFβ-binding protein-like domain 5 (TB5). ADAMTS10, ADAMTS17 and, ADAMTSL2 are also involved in the pathogenic mechanism of acromelic dysplasia. More recently, in TAA patients, we identified mutations in THSD4, encoding ADAMTSL6, a protein belonging to the ADAMTSL family suggesting that ADAMTSL proteins are also involved in the Marfanoid spectrum. Together with human genetic data and generated knockout mouse models targeting the involved genes, we provide herein an overview of the role of fibrillin-1 in opposite phenotypes. Finally, we will decipher the potential biological cooperation of ADAMTS-fibrillin-1 involved in these opposite phenotypes.
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Affiliation(s)
- Pauline Arnaud
- Université de Paris, INSERM U1148, Laboratory for Vascular Translational Science, Hôpital Bichat, Paris, France.,Département de Génétique, AP-HP, Hôpital Bichat, Paris, France
| | - Zakaria Mougin
- Université de Paris, INSERM U1148, Laboratory for Vascular Translational Science, Hôpital Bichat, Paris, France
| | - Catherine Boileau
- Université de Paris, INSERM U1148, Laboratory for Vascular Translational Science, Hôpital Bichat, Paris, France.,Département de Génétique, AP-HP, Hôpital Bichat, Paris, France
| | - Carine Le Goff
- Université de Paris, INSERM U1148, Laboratory for Vascular Translational Science, Hôpital Bichat, Paris, France
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28
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Singh M, Becker M, Godwin AR, Baldock C. Structural studies of elastic fibre and microfibrillar proteins. Matrix Biol Plus 2021; 12:100078. [PMID: 34355160 PMCID: PMC8322146 DOI: 10.1016/j.mbplus.2021.100078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/26/2021] [Accepted: 06/28/2021] [Indexed: 11/27/2022] Open
Abstract
Elastic tissues owe their functional properties to the composition of their extracellular matrices, particularly the range of extracellular, multidomain extensible elastic fibre and microfibrillar proteins. These proteins include elastin, fibrillin, latent TGFβ binding proteins (LTBPs) and collagens, where their biophysical and biochemical properties not only give the matrix structural integrity, but also play a vital role in the mechanisms that underlie tissue homeostasis. Thus far structural information regarding the structure and hierarchical assembly of these molecules has been challenging and the resolution has been limited due to post-translational modification and their multidomain nature leading to flexibility, which together result in conformational and structural heterogeneity. In this review, we describe some of the matrix proteins found in elastic fibres and the new emerging techniques that can shed light on their structure and dynamic properties.
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Affiliation(s)
- Mukti Singh
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK
| | - Mark Becker
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK
| | - Alan R.F. Godwin
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK
| | - Clair Baldock
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK
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29
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The extracellular matrix glycoprotein ADAMTSL2 is increased in heart failure and inhibits TGFβ signalling in cardiac fibroblasts. Sci Rep 2021; 11:19757. [PMID: 34611183 PMCID: PMC8492753 DOI: 10.1038/s41598-021-99032-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 09/16/2021] [Indexed: 12/21/2022] Open
Abstract
Fibrosis accompanies most heart diseases and is associated with adverse patient outcomes. Transforming growth factor (TGF)β drives extracellular matrix remodelling and fibrosis in the failing heart. Some members of the ADAMTSL (a disintegrin-like and metalloproteinase domain with thrombospondin type 1 motifs-like) family of secreted glycoproteins bind to matrix microfibrils, and although their function in the heart remains largely unknown, they are suggested to regulate TGFβ activity. The aims of this study were to determine ADAMTSL2 levels in failing hearts, and to elucidate the role of ADAMTSL2 in fibrosis using cultured human cardiac fibroblasts (CFBs). Cardiac ADAMTSL2 mRNA was robustly increased in human and experimental heart failure, and mainly expressed by fibroblasts. Over-expression and treatment with extracellular ADAMTSL2 in human CFBs led to reduced TGFβ production and signalling. Increased ADAMTSL2 attenuated myofibroblast differentiation, with reduced expression of the signature molecules α-smooth muscle actin and osteopontin. Finally, ADAMTSL2 mitigated the pro-fibrotic CFB phenotypes, proliferation, migration and contractility. In conclusion, the extracellular matrix-localized glycoprotein ADAMTSL2 was upregulated in fibrotic and failing hearts of patients and mice. We identified ADAMTSL2 as a negative regulator of TGFβ in human cardiac fibroblasts, inhibiting myofibroblast differentiation and pro-fibrotic properties.
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30
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A Rare Case of Brachyolmia with Amelogenesis Imperfecta Caused by a New Pathogenic Splicing Variant in LTBP3. Genes (Basel) 2021; 12:genes12091406. [PMID: 34573388 PMCID: PMC8470690 DOI: 10.3390/genes12091406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/09/2021] [Accepted: 09/10/2021] [Indexed: 12/13/2022] Open
Abstract
In recent years, a rare form of autosomal recessive brachyolmia associated with amelogenesis imperfecta (AI) has been described as a novel nosologic entity. This disorder is characterized by skeletal dysplasia (e.g., platyspondyly, short trunk, scoliosis, broad ilia, elongated femoral necks with coxa valga) and severe enamel and dental anomalies. Pathogenic variants in the latent transforming growth factor-β binding protein 3 (LTBP3) gene have been found implicated in the pathogenesis of this disorder. So far, biallelic pathogenic LTBP3 variants have been identified in less than 10 families. We here report a young boy born from consanguineous parents with a complex phenotype including skeletal dysplasia associated with aortic stenosis, hypertrophic cardiomyopathy, hypodontia and amelogenesis imperfecta caused by a previously unreported homozygous LTBP3 splice site variant. We also compare the genotypes and phenotypes of patients reported to date. This work provides further evidence that brachyolmia with amelogenesis imperfecta is a distinct nosologic entity and that variations in LTBP3 are involved in its pathogenesis.
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Abstract
Marfan syndrome (MFS) is an autosomal dominant, age-related but highly penetrant condition with substantial intrafamilial and interfamilial variability. MFS is caused by pathogenetic variants in FBN1, which encodes fibrillin-1, a major structural component of the extracellular matrix that provides support to connective tissues, particularly in arteries, the pericondrium and structures in the eye. Up to 25% of individuals with MFS have de novo variants. The most prominent manifestations of MFS are asymptomatic aortic root aneurysms, aortic dissections, dislocation of the ocular lens (ectopia lentis) and skeletal abnormalities that are characterized by overgrowth of the long bones. MFS is diagnosed based on the Ghent II nosology; genetic testing confirming the presence of a FBN1 pathogenetic variant is not always required for diagnosis but can help distinguish MFS from other heritable thoracic aortic disease syndromes that can present with skeletal features similar to those in MFS. Untreated aortic root aneurysms can progress to life-threatening acute aortic dissections. Management of MFS requires medical therapy to slow the rate of growth of aneurysms and decrease the risk of dissection. Routine surveillance with imaging techniques such as transthoracic echocardiography, CT or MRI is necessary to monitor aneurysm growth and determine when to perform prophylactic repair surgery to prevent an acute aortic dissection.
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32
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Tao Y, Wei Q, Chen X, Nong GM. Geleophysic dysplasia caused by a mutation in FBN1: A case report. World J Clin Cases 2021; 9:7175-7180. [PMID: 34540975 PMCID: PMC8409200 DOI: 10.12998/wjcc.v9.i24.7175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 05/19/2021] [Accepted: 07/07/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Geleophysic dysplasia (GD) presents the characterized clinical manifestations of acromelic dysplasia, including extremely short stature, short limbs, small hands and feet, stubby fingers and toes, joint stiffness and others. It is clinically distinct from the other acromelic dysplasia in terms of symptoms such as cardiac valvular abnormalities, progressive hepatomegaly and tracheal stenosis.
CASE SUMMARY We report on a Chinese 9-year-old girl with GD with the c.5243G>T (p.C1748F) mutation in FBN1 (fibrillin 1, OMIM 134797). She was born in Guangxi Zhuang Autonomous Region of China. The patient presented with typical clinical features of GD and recurrent respiratory tract infections over 6 years. Laboratory studies and chest computed tomography (CT) scan indicated bronchopneumonia. Her echocardiography revealed mild mitral valve thickening with regurgitation. Laryngopharyngeal CT and electronic bronchoscopy revealed severe glottic stenosis. Echocardiography examination displayed mild mitral valve thickening and regurgitation. Ophthalmic examination did not reveal myopia or lens dislocation. Treated with ceftriaxone sodium and methylprednisolone sodium succinate for injection as well as methylprednisolone orally, patient’s symptoms had improved.
CONCLUSION GD is a rare genetic condition that can cause life-threatening cardiovascular and respiratory problems. This study also found that the identified genotype of GD could be related to different clinical phenotypes.
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Affiliation(s)
- Ying Tao
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Qing Wei
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Xun Chen
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
| | - Guang-Min Nong
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China
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33
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Yang Z, Liu D, Guan R, Li X, Wang Y, Sheng B. Potential genes and pathways associated with heterotopic ossification derived from analyses of gene expression profiles. J Orthop Surg Res 2021; 16:499. [PMID: 34389038 PMCID: PMC8364104 DOI: 10.1186/s13018-021-02658-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 08/07/2021] [Indexed: 11/30/2022] Open
Abstract
Background Heterotopic ossification (HO) represents pathological lesions that refer to the development of heterotopic bone in extraskeletal tissues around joints. This study investigates the genetic characteristics of bone marrow mesenchymal stem cells (BMSCs) from HO tissues and explores the potential pathways involved in this ailment. Methods Gene expression profiles (GSE94683) were obtained from the Gene Expression Omnibus (GEO), including 9 normal specimens and 7 HO specimens, and differentially expressed genes (DEGs) were identified. Then, protein–protein interaction (PPI) networks and Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses were performed for further analysis. Results In total, 275 DEGs were differentially expressed, of which 153 were upregulated and 122 were downregulated. In the biological process (BP) category, the majority of DEGs, including EFNB3, UNC5C, TMEFF2, PTH2, KIT, FGF13, and WISP3, were intensively enriched in aspects of cell signal transmission, including axon guidance, negative regulation of cell migration, peptidyl-tyrosine phosphorylation, and cell-cell signaling. Moreover, KEGG analysis indicated that the majority of DEGs, including EFNB3, UNC5C, FGF13, MAPK10, DDIT3, KIT, COL4A4, and DKK2, were primarily involved in the mitogen-activated protein kinase (MAPK) signaling pathway, Ras signaling pathway, phosphatidylinositol-3-kinase/protein kinase B (PI3K/Akt) signaling pathway, and Wnt signaling pathway. Ten hub genes were identified, including CX3CL1, CXCL1, ADAMTS3, ADAMTS16, ADAMTSL2, ADAMTSL3, ADAMTSL5, PENK, GPR18, and CALB2. Conclusions This study presented novel insight into the pathogenesis of HO. Ten hub genes and most of the DEGs intensively involved in enrichment analyses may be new candidate targets for the prevention and treatment of HO in the future.
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Affiliation(s)
- Zhanyu Yang
- Department of Orthopaedics and Traumatology, Hunan Provincial People's Hospital, the First Affiliated Hospital of Hunan Normal University, No. 61 Jiefang West Road, Changsha, Hunan, 410000, People's Republic of China.,Hunan Emergency Center, No. 90 Pingchuan Road, Changsha, Hunan, 410000, People's Republic of China
| | - Delong Liu
- Department of Orthopaedics and Traumatology, Hunan Provincial People's Hospital, the First Affiliated Hospital of Hunan Normal University, No. 61 Jiefang West Road, Changsha, Hunan, 410000, People's Republic of China.,Hunan Emergency Center, No. 90 Pingchuan Road, Changsha, Hunan, 410000, People's Republic of China
| | - Rui Guan
- Department of Orthopaedics and Traumatology, Hunan Provincial People's Hospital, the First Affiliated Hospital of Hunan Normal University, No. 61 Jiefang West Road, Changsha, Hunan, 410000, People's Republic of China
| | - Xin Li
- Department of Orthopaedics and Traumatology, Hunan Provincial People's Hospital, the First Affiliated Hospital of Hunan Normal University, No. 61 Jiefang West Road, Changsha, Hunan, 410000, People's Republic of China
| | - Yiwei Wang
- Department of Orthopaedics and Traumatology, Hunan Provincial People's Hospital, the First Affiliated Hospital of Hunan Normal University, No. 61 Jiefang West Road, Changsha, Hunan, 410000, People's Republic of China
| | - Bin Sheng
- Department of Orthopaedics and Traumatology, Hunan Provincial People's Hospital, the First Affiliated Hospital of Hunan Normal University, No. 61 Jiefang West Road, Changsha, Hunan, 410000, People's Republic of China. .,Hunan Emergency Center, No. 90 Pingchuan Road, Changsha, Hunan, 410000, People's Republic of China.
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Zhang RM, Zeyer KA, Odenthal N, Zhang Y, Reinhardt DP. The fibrillin-1 RGD motif posttranscriptionally regulates ERK1/2 signaling and fibroblast proliferation via miR-1208. FASEB J 2021; 35:e21598. [PMID: 33871068 DOI: 10.1096/fj.202100282r] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/28/2021] [Accepted: 03/31/2021] [Indexed: 12/17/2022]
Abstract
Fibrillin-1 is an extracellular matrix protein which contains one conserved RGD integrin-binding motif. It constitutes the backbone of microfibrils in many tissues, and mutations in fibrillin-1 cause various connective tissue disorders. Although it is well established that fibrillin-1 interacts with several RGD-dependent integrins, very little is known about the associated intracellular signaling pathways. Recent published evidence identified a subset of miRNAs regulated by fibrillin-1 RGD-cell adhesion, with miR-1208 among the most downregulated. The present study shows that the downregulated miR-1208 controls fibroblast proliferation. Inhibitor experiments revealed that fibrillin-1 RGD suppressed miR-1208 expression via c-Src kinase and the downstream JNK signaling. Bioinformatic prediction and experimental target sequence validation demonstrated four miR-1208 binding sites on the ERK2 mRNA and one on the MEK1 mRNA. ERK2 and MEK1 are critical proliferation-promoting kinases. Decreased miR-1208 levels elevated the total and phosphorylated ERK1/2 and MEK1/2 protein levels and the phosphorylated to total ERK1/2 ratio. Together, the data demonstrate a novel outside-in signaling mechanism explaining how fibrillin-1 RGD-cell binding regulates fibroblast proliferation.
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Affiliation(s)
- Rong-Mo Zhang
- Faculty of Medicine and Health Sciences, Department of Anatomy and Cell Biology, McGill University, Montreal, Canada
| | - Karina A Zeyer
- Faculty of Medicine and Health Sciences, Department of Anatomy and Cell Biology, McGill University, Montreal, Canada
| | - Nadine Odenthal
- Department of Natural Science, University of Lübeck, Lübeck, Germany
| | - Yiyun Zhang
- Faculty of Medicine and Health Sciences, Department of Anatomy and Cell Biology, McGill University, Montreal, Canada
| | - Dieter P Reinhardt
- Faculty of Medicine and Health Sciences, Department of Anatomy and Cell Biology, McGill University, Montreal, Canada.,Faculty of Dentistry, McGill University, Montreal, Canada
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35
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Controlling BMP growth factor bioavailability: The extracellular matrix as multi skilled platform. Cell Signal 2021; 85:110071. [PMID: 34217834 DOI: 10.1016/j.cellsig.2021.110071] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/26/2021] [Accepted: 06/29/2021] [Indexed: 01/23/2023]
Abstract
Bone morphogenetic proteins (BMPs) belong to the TGF-β superfamily of signaling ligands which comprise a family of pluripotent cytokines regulating a multitude of cellular events. Although BMPs were originally discovered as potent factors extractable from bone matrix that are capable to induce ectopic bone formation in soft tissues, their mode of action has been mostly studied as soluble ligands in absence of the physiologically relevant cellular microenvironment. This micro milieu is defined by supramolecular networks of extracellular matrix (ECM) proteins that specifically target BMP ligands, present them to their cellular receptors, and allow their controlled release. Here we focus on functional interactions and mechanisms that were described to control BMP bioavailability in a spatio-temporal manner within the respective tissue context. Structural disturbance of the ECM architecture due to mutations in ECM proteins leads to dysregulated BMP signaling as underlying cause for connective tissue disease pathways. We will provide an overview about current mechanistic concepts of how aberrant BMP signaling drives connective tissue destruction in inherited and chronic diseases.
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Pottie L, Adamo CS, Beyens A, Lütke S, Tapaneeyaphan P, De Clercq A, Salmon PL, De Rycke R, Gezdirici A, Gulec EY, Khan N, Urquhart JE, Newman WG, Metcalfe K, Efthymiou S, Maroofian R, Anwar N, Maqbool S, Rahman F, Altweijri I, Alsaleh M, Abdullah SM, Al-Owain M, Hashem M, Houlden H, Alkuraya FS, Sips P, Sengle G, Callewaert B. Bi-allelic premature truncating variants in LTBP1 cause cutis laxa syndrome. Am J Hum Genet 2021; 108:1095-1114. [PMID: 33991472 PMCID: PMC8206382 DOI: 10.1016/j.ajhg.2021.04.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 04/22/2021] [Indexed: 02/02/2023] Open
Abstract
Latent transforming growth factor β (TGFβ)-binding proteins (LTBPs) are microfibril-associated proteins essential for anchoring TGFβ in the extracellular matrix (ECM) as well as for correct assembly of ECM components. Variants in LTBP2, LTBP3, and LTBP4 have been identified in several autosomal recessive Mendelian disorders with skeletal abnormalities with or without impaired development of elastin-rich tissues. Thus far, the human phenotype associated with LTBP1 deficiency has remained enigmatic. In this study, we report homozygous premature truncating LTBP1 variants in eight affected individuals from four unrelated consanguineous families. Affected individuals present with connective tissue features (cutis laxa and inguinal hernia), craniofacial dysmorphology, variable heart defects, and prominent skeletal features (craniosynostosis, short stature, brachydactyly, and syndactyly). In vitro studies on proband-derived dermal fibroblasts indicate distinct molecular mechanisms depending on the position of the variant in LTBP1. C-terminal variants lead to an altered LTBP1 loosely anchored in the microfibrillar network and cause increased ECM deposition in cultured fibroblasts associated with excessive TGFβ growth factor activation and signaling. In contrast, N-terminal truncation results in a loss of LTBP1 that does not alter TGFβ levels or ECM assembly. In vivo validation with two independent zebrafish lines carrying mutations in ltbp1 induce abnormal collagen fibrillogenesis in skin and intervertebral ligaments and ectopic bone formation on the vertebrae. In addition, one of the mutant zebrafish lines shows voluminous and hypo-mineralized vertebrae. Overall, our findings in humans and zebrafish show that LTBP1 function is crucial for skin and bone ECM assembly and homeostasis.
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Affiliation(s)
- Lore Pottie
- Center for Medical Genetics Ghent, Ghent University Hospital, Ghent 9000, Belgium; Department of Biomolecular Medicine, Ghent University, Ghent 9000, Belgium
| | - Christin S Adamo
- Center for Biochemistry, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne 50931, Germany; Department of Pediatrics and Adolescent Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne 50931, Germany
| | - Aude Beyens
- Center for Medical Genetics Ghent, Ghent University Hospital, Ghent 9000, Belgium; Department of Biomolecular Medicine, Ghent University, Ghent 9000, Belgium; Department of Dermatology, Ghent University Hospital, Ghent 9000, Belgium
| | - Steffen Lütke
- Center for Biochemistry, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne 50931, Germany; Department of Pediatrics and Adolescent Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne 50931, Germany
| | - Piyanoot Tapaneeyaphan
- Center for Medical Genetics Ghent, Ghent University Hospital, Ghent 9000, Belgium; Department of Biomolecular Medicine, Ghent University, Ghent 9000, Belgium
| | - Adelbert De Clercq
- Center for Medical Genetics Ghent, Ghent University Hospital, Ghent 9000, Belgium; Department of Biomolecular Medicine, Ghent University, Ghent 9000, Belgium
| | | | - Riet De Rycke
- Department of Biomedical Molecular Biology, Ghent University, Ghent 9052, Belgium; VIB Center for Inflammation Research, Ghent 9052, Belgium; Ghent University Expertise Centre for Transmission Electron Microscopy and VIB Bioimaging Core, Ghent 9052, Belgium
| | - Alper Gezdirici
- Department of Medical Genetics, Basaksehir Cam and Sakura City Hospital, Istanbul 34480, Turkey
| | - Elif Yilmaz Gulec
- Department of Medical Genetics, Kanuni Sultan Suleyman Training and Research Hospital, Health Sciences University, Istanbul 34303, Turkey
| | - Naz Khan
- Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9WL, UK; Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester University NHS Foundation Trust, Manchester M13 9WL, UK
| | - Jill E Urquhart
- Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9WL, UK; Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester University NHS Foundation Trust, Manchester M13 9WL, UK
| | - William G Newman
- Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9WL, UK; Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester University NHS Foundation Trust, Manchester M13 9WL, UK
| | - Kay Metcalfe
- Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester University NHS Foundation Trust, Manchester M13 9WL, UK
| | - Stephanie Efthymiou
- Department of Neuromuscular Disorders, UCL Institute of Neurology, London WC1N 3BG, UK
| | - Reza Maroofian
- Department of Neuromuscular Disorders, UCL Institute of Neurology, London WC1N 3BG, UK
| | - Najwa Anwar
- Development and Behavioral Pediatrics Department, Institute of Child Health and The Children Hospital, Lahore 54000, Pakistan
| | - Shazia Maqbool
- Development and Behavioral Pediatrics Department, Institute of Child Health and The Children Hospital, Lahore 54000, Pakistan
| | - Fatima Rahman
- Development and Behavioral Pediatrics Department, Institute of Child Health and The Children Hospital, Lahore 54000, Pakistan
| | - Ikhlass Altweijri
- Department of Neurosurgery, King Khalid University Hospital, Riyadh 11211, Saudi Arabia
| | - Monerah Alsaleh
- Heart Centre, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Sawsan Mohamed Abdullah
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Mohammad Al-Owain
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia; Department of Anatomy and Cell Biology, College of Medicine, Alfaisal University, Riyadh 11211, Saudi Arabia
| | - Mais Hashem
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Henry Houlden
- Department of Neuromuscular Disorders, UCL Institute of Neurology, London WC1N 3BG, UK
| | - Fowzan S Alkuraya
- Department of Translational Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia; Department of Anatomy and Cell Biology, College of Medicine, Alfaisal University, Riyadh 11211, Saudi Arabia
| | - Patrick Sips
- Center for Medical Genetics Ghent, Ghent University Hospital, Ghent 9000, Belgium; Department of Biomolecular Medicine, Ghent University, Ghent 9000, Belgium
| | - Gerhard Sengle
- Center for Biochemistry, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne 50931, Germany; Department of Pediatrics and Adolescent Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne 50931, Germany; Center for Molecular Medicine Cologne, University of Cologne, Robert-Koch-Street 21, Cologne 50931, Germany; Cologne Center for Musculoskeletal Biomechanics, Cologne 50931, Germany
| | - Bert Callewaert
- Center for Medical Genetics Ghent, Ghent University Hospital, Ghent 9000, Belgium; Department of Biomolecular Medicine, Ghent University, Ghent 9000, Belgium.
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Shan YC, Yang ZC, Ma L, Ran N, Feng XY, Liu XM, Fu P, Yi MJ. A Review of Three Chinese Cases of Acromicric/Geleophysic Dysplasia with FBN1 Mutations. Int J Gen Med 2021; 14:1873-1880. [PMID: 34040419 PMCID: PMC8139683 DOI: 10.2147/ijgm.s306018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 04/14/2021] [Indexed: 12/02/2022] Open
Abstract
Objective This study aims to explore the clinical features and molecular diagnosis of FBN1-related acromelic dysplasia in Chinese patients. Methods The clinical and genetic features of three FBN1-related acromicric dysplasia (AD)/geleophysic dysplasia (GD) Chinese patients from two families were reviewed, and comprehensive medical evaluations were performed. Targeted next-generation sequencing was used to detect genetic mutations associated with short statures, including FBN1. Sanger sequencing was used to determine the de novo mutation origin. Results Patient 1 presented with short stature, short and stubby hands and feet, mild facial dysmorphism, hepatomegaly, delayed bone age and beak-like femoral heads. Patient 2 and this patient’s father merely presented with short stature, wide and short hands, and beak-like femoral heads. One novel mutation, c.5272G>T(p.D1758Y), and one known mutation, c.5183C>T(p.A1728V), were identified in these patients. Conclusion The clinical features varied among these patients. The variant c.5272G>T(p.D1758Y) is a novel mutation.
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Affiliation(s)
- Yan-Chun Shan
- Department of Child Health Care, Pediatric Center, Affiliated Hospital of Qingdao University, Qingdao, 266003, People's Republic of China
| | - Zhao-Chuan Yang
- Department of Child Health Care, Pediatric Center, Affiliated Hospital of Qingdao University, Qingdao, 266003, People's Republic of China
| | - Liang Ma
- Department of Child Health Care, Pediatric Center, Affiliated Hospital of Qingdao University, Qingdao, 266003, People's Republic of China
| | - Ni Ran
- Department of Child Health Care, Pediatric Center, Affiliated Hospital of Qingdao University, Qingdao, 266003, People's Republic of China
| | - Xue-Ying Feng
- Department of Child Health Care, Pediatric Center, Affiliated Hospital of Qingdao University, Qingdao, 266003, People's Republic of China
| | - Xiao-Mei Liu
- Department of Child Health Care, Pediatric Center, Affiliated Hospital of Qingdao University, Qingdao, 266003, People's Republic of China
| | - Peng Fu
- Department of Child Health Care, Pediatric Center, Affiliated Hospital of Qingdao University, Qingdao, 266003, People's Republic of China
| | - Ming-Ji Yi
- Department of Child Health Care, Pediatric Center, Affiliated Hospital of Qingdao University, Qingdao, 266003, People's Republic of China
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Cale JM, Greer K, Fletcher S, Wilton SD. Proof-of-Concept: Antisense Oligonucleotide Mediated Skipping of Fibrillin-1 Exon 52. Int J Mol Sci 2021; 22:ijms22073479. [PMID: 33801742 PMCID: PMC8037683 DOI: 10.3390/ijms22073479] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 11/16/2022] Open
Abstract
Marfan syndrome is one of the most common dominantly inherited connective tissue disorders, affecting 2–3 in 10,000 individuals, and is caused by one of over 2800 unique FBN1 mutations. Mutations in FBN1 result in reduced fibrillin-1 expression, or the production of two different fibrillin-1 monomers unable to interact to form functional microfibrils. Here, we describe in vitro evaluation of antisense oligonucleotides designed to mediate exclusion of FBN1 exon 52 during pre-mRNA splicing to restore monomer homology. Antisense oligonucleotide sequences were screened in healthy control fibroblasts. The most effective sequence was synthesised as a phosphorodiamidate morpholino oligomer, a chemistry shown to be safe and effective clinically. We show that exon 52 can be excluded in up to 100% of FBN1 transcripts in healthy control fibroblasts transfected with PMO52. Immunofluorescent staining revealed the loss of fibrillin 1 fibres with ~50% skipping and the subsequent re-appearance of fibres with >80% skipping. However, the effect of exon skipping on the function of the induced fibrillin-1 isoform remains to be explored. Therefore, these findings demonstrate proof-of-concept that exclusion of an exon from FBN1 pre-mRNA can result in internally truncated but identical monomers capable of forming fibres and lay a foundation for further investigation to determine the effect of exon skipping on fibrillin-1 function.
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Affiliation(s)
- Jessica M. Cale
- Centre for Molecular Medicine and Innovative Therapeutics, Health Futures Institute, Murdoch University, Murdoch, WA 6150, Australia; (J.M.C.); (K.G.); (S.F.)
| | - Kane Greer
- Centre for Molecular Medicine and Innovative Therapeutics, Health Futures Institute, Murdoch University, Murdoch, WA 6150, Australia; (J.M.C.); (K.G.); (S.F.)
| | - Sue Fletcher
- Centre for Molecular Medicine and Innovative Therapeutics, Health Futures Institute, Murdoch University, Murdoch, WA 6150, Australia; (J.M.C.); (K.G.); (S.F.)
- Centre for Neuromuscular and Neurological Disorders, Perron Institute for Neurological and Translational Science, The University of Western Australia, Nedlands, WA 6009, Australia
- PYC Therapeutics, Nedlands, WA 6009, Australia
| | - Steve D. Wilton
- Centre for Molecular Medicine and Innovative Therapeutics, Health Futures Institute, Murdoch University, Murdoch, WA 6150, Australia; (J.M.C.); (K.G.); (S.F.)
- Centre for Neuromuscular and Neurological Disorders, Perron Institute for Neurological and Translational Science, The University of Western Australia, Nedlands, WA 6009, Australia
- Correspondence: ; Tel.: +61-8-9360-2305
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Jensen SA, Atwa O, Handford PA. Assembly assay identifies a critical region of human fibrillin-1 required for 10-12 nm diameter microfibril biogenesis. PLoS One 2021; 16:e0248532. [PMID: 33735269 PMCID: PMC7971562 DOI: 10.1371/journal.pone.0248532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 02/26/2021] [Indexed: 11/17/2022] Open
Abstract
The human FBN1 gene encodes fibrillin-1 (FBN1); the main component of the 10–12 nm diameter extracellular matrix microfibrils. Marfan syndrome (MFS) is a common inherited connective tissue disorder, caused by FBN1 mutations. It features a wide spectrum of disease severity, from mild cases to the lethal neonatal form (nMFS), that is yet to be explained at the molecular level. Mutations associated with nMFS generally affect a region of FBN1 between domains TB3-cbEGF18—the "neonatal region". To gain insight into the process of fibril assembly and increase our understanding of the mechanisms determining disease severity in MFS, we compared the secretion and assembly properties of FBN1 variants containing nMFS-associated substitutions with variants associated with milder, classical MFS (cMFS). In the majority of cases, both nMFS- and cMFS-associated neonatal region variants were secreted at levels comparable to wild type. Microfibril incorporation by the nMFS variants was greatly reduced or absent compared to the cMFS forms, however, suggesting that nMFS substitutions disrupt a previously undefined site of microfibril assembly. Additional analysis of a domain deletion variant caused by exon skipping also indicates that register in the neonatal region is likely to be critical for assembly. These data demonstrate for the first time new requirements for microfibril biogenesis and identify at least two distinct molecular mechanisms associated with disease substitutions in the TB3-cbEGF18 region; incorporation of mutant FBN1 into microfibrils changing their integral properties (cMFS) or the blocking of wild type FBN1 assembly by mutant molecules that prevents late-stage lateral assembly (nMFS).
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Affiliation(s)
- Sacha A Jensen
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
| | - Ondine Atwa
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
| | - Penny A Handford
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
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Heinz A. Elastic fibers during aging and disease. Ageing Res Rev 2021; 66:101255. [PMID: 33434682 DOI: 10.1016/j.arr.2021.101255] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/29/2020] [Accepted: 12/30/2020] [Indexed: 02/08/2023]
Abstract
Elastic fibers are essential constituents of the extracellular matrix of higher vertebrates and endow several tissues and organs including lungs, skin and blood vessels with elasticity and resilience. During the human lifespan, elastic fibers are exposed to a variety of enzymatic, chemical and biophysical influences, and accumulate damage due to their low turnover. Aging of elastin and elastic fibers involves enzymatic degradation, oxidative damage, glycation, calcification, aspartic acid racemization, binding of lipids and lipid peroxidation products, carbamylation and mechanical fatigue. These processes can trigger an impairment or loss of elastic fiber function and are associated with severe pathologies. There are different inherited or acquired pathological conditions, which influence the structure and function of elastic fibers and microfibrils predominantly in the cardiorespiratory system and skin. Inherited elastic-fiber pathologies have a direct or indirect impact on elastic-fiber formation due to mutations in the fibrillin genes (fibrillinopathies), in the elastin gene (elastinopathies) or in genes encoding proteins that are associated with microfibrils or elastic fibers. Acquired elastic-fiber pathologies appear age-related or as a result of multiple factors impairing tissue homeostasis. This review gives an overview on the fate of elastic fibers over the human lifespan in health and disease.
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Intracellular and Extracellular Markers of Lethality in Osteogenesis Imperfecta: A Quantitative Proteomic Approach. Int J Mol Sci 2021; 22:ijms22010429. [PMID: 33406681 PMCID: PMC7795927 DOI: 10.3390/ijms22010429] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/28/2020] [Accepted: 12/29/2020] [Indexed: 12/15/2022] Open
Abstract
Osteogenesis imperfecta (OI) is a heritable disorder that mainly affects the skeleton. The inheritance is mostly autosomal dominant and associated to mutations in one of the two genes, COL1A1 and COL1A2, encoding for the type I collagen α chains. According to more than 1500 described mutation sites and to outcome spanning from very mild cases to perinatal-lethality, OI is characterized by a wide genotype/phenotype heterogeneity. In order to identify common affected molecular-pathways and disease biomarkers in OI probands with different mutations and lethal or surviving phenotypes, primary fibroblasts from dominant OI patients, carrying COL1A1 or COL1A2 defects, were investigated by applying a Tandem Mass Tag labeling-Liquid Chromatography-Tandem Mass Spectrometry (TMT LC-MS/MS) proteomics approach and bioinformatic tools for comparative protein-abundance profiling. While no difference in α1 or α2 abundance was detected among lethal (type II) and not-lethal (type III) OI patients, 17 proteins, with key effects on matrix structure and organization, cell signaling, and cell and tissue development and differentiation, were significantly different between type II and type III OI patients. Among them, some non-collagenous extracellular matrix (ECM) proteins (e.g., decorin and fibrillin-1) and proteins modulating cytoskeleton (e.g., nestin and palladin) directly correlate to the severity of the disease. Their defective presence may define proband-failure in balancing aberrances related to mutant collagen.
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Geleophysic and acromicric dysplasias: natural history, genotype–phenotype correlations, and management guidelines from 38 cases. Genet Med 2020; 23:331-340. [DOI: 10.1038/s41436-020-00994-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/23/2020] [Accepted: 09/23/2020] [Indexed: 02/07/2023] Open
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Niu Y, Huang S, Wang Z, Xu P, Wang L, Li J, Gao M, Gao X, Gao Y. A nonsense variant in FBN1 caused autosomal dominant Marfan syndrome in a Chinese family: a case report. BMC MEDICAL GENETICS 2020; 21:211. [PMID: 33087052 PMCID: PMC7579915 DOI: 10.1186/s12881-020-01148-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 10/13/2020] [Indexed: 11/20/2022]
Abstract
Background Marfan syndrome (MFS) is a common autosomal dominant inherited disease, and the occurrence rate is around 0.1–0.2‰. The causative variant of FNB1 gene accounts for approximately 70–80% of all MFS cases. In this study, we found a heterozygous c.3217G > T (p.Glu1073*) nonsense variant in the FBN1 gene. This finding extended the variant spectrum of the FBN1 gene and will provide a solution for patients to bear healthy offspring by preimplantation genetic testing or prenatal diagnosis. Case presentation The patient was treated due to tachycardia during excitement in a hospital. Echocardiography showed dilatation of the ascending aorta and main pulmonary artery, mitral regurgitation (mild), tricuspid regurgitation (mild), and abnormal left ventricular filling. Electrocardiograph showed sinus rhythm. In addition, flutters of shadows in front of his eyes and vitreous opacity were present in the patient. Genomic DNA was extracted from peripheral blood samples from members of the family and 100 unrelated controls. Potential variants were screened out by next-generation sequencing and confirmed by MLPA & Sanger sequencing. Real-time fluorescence quantitative PCR (RT-qPCR) was performed to detect the relative mRNA quantitation in the patient. A heterozygous nonsense variant c.3217G > T of the FBN1 gene, which resulted in p. Glu1073Term, was identified in both patients. Only wild type bases were found in the cDNA sequence of the patient. Real-time fluorogenic quantitative PCR results showed that the relative expression level of FBN1 cDNA in the patient was only about 21% compared to that of normal individuals. This variant c.3217G > T of the FBN1 gene introduces a Stop codon in the cb-EGF12 domain. We speculated that a premature translational-termination codon (PTC) was located in the mRNA and the target mRNA was disintegrated through a process known as nonsense-mediated mRNA decay (NMD), which led to a significant decrease of the fibrillin-1 protein, eventually causing clinical symptoms in the patient. Conclusions In this study, we found a heterozygous c.3217G > T (p.Glu1073*) nonsense variant in the FBN1 gene, which eventually led to Marfan syndrome in a Chinese family.
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Affiliation(s)
- Yuping Niu
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China
| | - Sexin Huang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China
| | - Zeyu Wang
- Georgia Institute of Technology, Atlanta, GA, USA
| | - Peiwen Xu
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China
| | - Lijuan Wang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China
| | - Jie Li
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China
| | - Ming Gao
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China
| | - Xuan Gao
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China. .,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China. .,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China.
| | - Yuan Gao
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China. .,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China. .,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China.
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Egea G, Jiménez-Altayó F, Campuzano V. Reactive Oxygen Species and Oxidative Stress in the Pathogenesis and Progression of Genetic Diseases of the Connective Tissue. Antioxidants (Basel) 2020; 9:antiox9101013. [PMID: 33086603 PMCID: PMC7603119 DOI: 10.3390/antiox9101013] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/14/2020] [Accepted: 10/14/2020] [Indexed: 12/18/2022] Open
Abstract
Connective tissue is known to provide structural and functional “glue” properties to other tissues. It contains cellular and molecular components that are arranged in several dynamic organizations. Connective tissue is the focus of numerous genetic and nongenetic diseases. Genetic diseases of the connective tissue are minority or rare, but no less important than the nongenetic diseases. Here we review the impact of reactive oxygen species (ROS) and oxidative stress on the onset and/or progression of diseases that directly affect connective tissue and have a genetic origin. It is important to consider that ROS and oxidative stress are not synonymous, although they are often closely linked. In a normal range, ROS have a relevant physiological role, whose levels result from a fine balance between ROS producers and ROS scavenge enzymatic systems. However, pathology arises or worsens when such balance is lost, like when ROS production is abnormally and constantly high and/or when ROS scavenge (enzymatic) systems are impaired. These concepts apply to numerous diseases, and connective tissue is no exception. We have organized this review around the two basic structural molecular components of connective tissue: The ground substance and fibers (collagen and elastic fibers).
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Affiliation(s)
- Gustavo Egea
- Department of Biomedical Science, University of Barcelona School of Medicine and Health Sciences, 08036 Barcelona, Spain;
- Institut d’Investigacions Biomédiques August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain
- Institut de Nanociencies I Nanotecnologia (IN2UB), University of Barcelona, 08028 Barcelona, Spain
- Correspondence: ; Tel.: +34-934-021-909
| | - Francesc Jiménez-Altayó
- Departament of Pharmacology, Therapeutics, and Toxicology, Neuroscience Institute, Autonomous University of Barcelona, 08193 Barcelona, Spain;
| | - Victoria Campuzano
- Department of Biomedical Science, University of Barcelona School of Medicine and Health Sciences, 08036 Barcelona, Spain;
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Sun C, Xu D, Pei Z, Yang L, Qiao Z, Lu W, Luo F, Qiu Z. Separation in genetic pathogenesis of mutations in FBN1-TB5 region between autosomal dominant acromelic dysplasia and Marfan syndrome. Birth Defects Res 2020; 112:1834-1842. [PMID: 33030311 DOI: 10.1002/bdr2.1814] [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: 08/09/2020] [Revised: 09/16/2020] [Accepted: 09/21/2020] [Indexed: 11/07/2022]
Abstract
Mutations in the transforming growth factor β-binding protein-like domain 5 (TB5) region of FBN1 can lead to autosomal acromelic dysplasia and Marfan syndrome, which are two diseases with apparently opposite phenotypes. We identified six patients with acromelic dysplasia carrying either the previously reported mutations c.5284G > A (p.Gly1762Ser) and c.5096A > G (p.Tyr1699Cys) or the novel mutation c.5260G > A (p.Gly1754Ser). A systematic review of patients with mutations in the FBN1-TB5 region showed that acromelic dysplasia is caused only by in-frame amino acid substitutions. In contrast, truncating mutations in the FBN1-TB5 have been reported only in Marfan syndrome. Acromelic dysplasia subtypes that share symptoms with Marfan syndrome are associated with FBN1-TB5 disulfide disruptions, which are also commonly found in Marfan syndrome. These results suggest that the type and location of mutations in the FBN1-TB5 region determine the clinical spectrum of fibrillinopathy.
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Affiliation(s)
- Chengjun Sun
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, Shanghai, China
| | - Dandan Xu
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, Shanghai, China
| | - Zhou Pei
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, Shanghai, China
| | - Lin Yang
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, Shanghai, China.,The Molecular Genetic Diagnosis Center, Pediatrics Research Institute, Children's Hospital of Fudan University, Shanghai, China
| | - Zhongwei Qiao
- Department of Radiology, Children's Hospital of Fudan University, Shanghai, China
| | - Wei Lu
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, Shanghai, China
| | - Feihong Luo
- Department of Pediatric Endocrinology and Inherited Metabolic Diseases, Children's Hospital of Fudan University, Shanghai, China
| | - Zhengqing Qiu
- Department of Pediatrics, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
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Adamo CS, Zuk AV, Sengle G. The fibrillin microfibril/elastic fibre network: A critical extracellular supramolecular scaffold to balance skin homoeostasis. Exp Dermatol 2020; 30:25-37. [PMID: 32920888 DOI: 10.1111/exd.14191] [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: 06/21/2020] [Revised: 09/01/2020] [Accepted: 09/03/2020] [Indexed: 01/08/2023]
Abstract
Supramolecular networks composed of fibrillins (fibrillin-1 and fibrillin-2) and associated ligands form intricate cellular microenvironments which balance skin homoeostasis and direct remodelling. Fibrillins assemble into microfibrils which are not only indispensable for conferring elasticity to the skin, but also control the bioavailability of growth factors targeted to the extracellular matrix architecture. Fibrillin microfibrils (FMF) represent the core scaffolds for elastic fibre formation, and they also decorate the surface of elastic fibres and form independent networks. In normal dermis, elastic fibres are suspended in a three-dimensional basket-like lattice of FMF intersecting basement membranes at the dermal-epidermal junction and thus conferring pliability to the skin. The importance of FMF for skin homoeostasis is illustrated by the clinical features caused by mutations in the human fibrillin genes (FBN1, FBN2), summarized as "fibrillinopathies." In skin, fibrillin mutations result in phenotypes ranging from thick, stiff and fibrotic skin to thin, lax and hyperextensible skin. The most plausible explanation for this spectrum of phenotypic outcomes is that FMF regulate growth factor signalling essential for proper growth and homoeostasis of the skin. Here, we will give an overview about the current understanding of the underlying pathomechanisms leading to fibrillin-dependent fibrosis as well as forms of cutis laxa caused by mutational inactivation of FMF-associated ligands.
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Affiliation(s)
- Christin S Adamo
- Center for Biochemistry, Medical Faculty, University of Cologne, Cologne, Germany.,Department of Pediatrics and Adolescent Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Alexandra V Zuk
- Center for Biochemistry, Medical Faculty, University of Cologne, Cologne, Germany
| | - Gerhard Sengle
- Center for Biochemistry, Medical Faculty, University of Cologne, Cologne, Germany.,Department of Pediatrics and Adolescent Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany.,Cologne Center for Musculoskeletal Biomechanics (CCMB), Cologne, Germany
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Lu T, Lin X, Pan YH, Yang N, Ye S, Zhang Q, Wang C, Zhu R, Zhang T, Wisniewski TM, Cao Z, Ding BS, Dang S, Zhang W. ADAMTS18 Deficiency Leads to Pulmonary Hypoplasia and Bronchial Microfibril Accumulation. iScience 2020; 23:101472. [PMID: 32882513 PMCID: PMC7476315 DOI: 10.1016/j.isci.2020.101472] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 07/02/2020] [Accepted: 08/17/2020] [Indexed: 01/06/2023] Open
Abstract
ADAMTSs (a disintegrin and metalloproteinase with thrombospondin motifs) are secreted metalloproteinases that play a major role in the assembly and degradation of the extracellular matrix (ECM). In this study, we show that ADAMTS18, produced by the epithelial cells of distal airways and mesenchymal cells in lung apex at early embryonic stages, serves as a morphogen in lung development. ADAMTS18 deficiency leads to reduced number and length of bronchi, tipped lung apexes, and dilated alveoli. These developmental defects worsen lipopolysaccharide-induced acute lung injury and bleomycin-induced lung fibrosis in adult Adamts18-deficient mice. ADAMTS18 deficiency also causes increased levels of fibrillin1 and fibrillin2, bronchial microfibril accumulation, decreased focal adhesion kinase signaling, and disruption of F-actin organization. Our findings indicate that ECM homeostasis mediated by ADAMTS18 is pivotal in airway branching morphogenesis.
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Affiliation(s)
- Tiantian Lu
- Key Laboratory of Brain Functional Genomics (Ministry of Education and Shanghai), School of Life Sciences, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Xiaotian Lin
- Key Laboratory of Brain Functional Genomics (Ministry of Education and Shanghai), School of Life Sciences, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Yi-Hsuan Pan
- Key Laboratory of Brain Functional Genomics (Ministry of Education and Shanghai), School of Life Sciences, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Ning Yang
- Key Laboratory of Brain Functional Genomics (Ministry of Education and Shanghai), School of Life Sciences, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Shuai Ye
- Key Laboratory of Brain Functional Genomics (Ministry of Education and Shanghai), School of Life Sciences, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Qi Zhang
- Key Laboratory of Brain Functional Genomics (Ministry of Education and Shanghai), School of Life Sciences, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Caiyun Wang
- Key Laboratory of Brain Functional Genomics (Ministry of Education and Shanghai), School of Life Sciences, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Rui Zhu
- Key Laboratory of Brain Functional Genomics (Ministry of Education and Shanghai), School of Life Sciences, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Tianhao Zhang
- Key Laboratory of Brain Functional Genomics (Ministry of Education and Shanghai), School of Life Sciences, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Thomas M. Wisniewski
- Departments of Neurology, Pathology and Psychiatry, New York University School of Medicine, New York, NY 10016, USA
| | - Zhongwei Cao
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Bi-Sen Ding
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Suying Dang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Jiao Tong University School of Medicine, 227 South Chongqing Road, Shanghai 200025, China
| | - Wei Zhang
- Key Laboratory of Brain Functional Genomics (Ministry of Education and Shanghai), School of Life Sciences, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
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Satz-Jacobowitz B, Hubmacher D. The quest for substrates and binding partners: A critical barrier for understanding the role of ADAMTS proteases in musculoskeletal development and disease. Dev Dyn 2020; 250:8-26. [PMID: 32875613 DOI: 10.1002/dvdy.248] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/27/2020] [Accepted: 08/27/2020] [Indexed: 12/16/2022] Open
Abstract
Secreted ADAMTS metalloproteases are involved in the sculpting, remodeling, and erosion of connective tissues throughout the body, including in the musculoskeletal system. ADAMTS proteases contribute to musculoskeletal development, pathological tissue destruction, and are mutated in congenital musculoskeletal disorders. Examples include versican cleavage by ADAMTS9 which is required for interdigital web regression during limb development, ADAMTS5-mediated aggrecan degradation in osteoarthritis resulting in joint erosion, and mutations in ADAMTS10 or ADAMTS17 that cause Weill-Marchesani syndrome, a short stature syndrome with bone, joint, muscle, cardiac, and eye involvement. Since the function of ADAMTS proteases and proteases in general is primarily defined by the molecular consequences of proteolysis of their respective substrates, it is paramount to identify all physiological substrates for each individual ADAMTS protease. Here, we review the current knowledge of ADAMTS proteases and their involvement in musculoskeletal development and disease, focusing on some of their known physiological substrates and the consequences of substrate cleavage. We further emphasize the critical need for the identification and validation of novel ADAMTS substrates and binding partners by describing the principles of mass spectrometry-based approaches and by emphasizing strategies that need to be considered for validating the physiological relevance for ADAMTS-mediated proteolysis of novel putative substrates.
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Affiliation(s)
- Brandon Satz-Jacobowitz
- Orthopedic Research Laboratories, Leni & Peter W. May Department of Orthopedics, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Dirk Hubmacher
- Orthopedic Research Laboratories, Leni & Peter W. May Department of Orthopedics, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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Stanley S, Balic Z, Hubmacher D. Acromelic dysplasias: how rare musculoskeletal disorders reveal biological functions of extracellular matrix proteins. Ann N Y Acad Sci 2020; 1490:57-76. [PMID: 32880985 DOI: 10.1111/nyas.14465] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/16/2020] [Accepted: 07/22/2020] [Indexed: 12/15/2022]
Abstract
Acromelic dysplasias are a group of rare musculoskeletal disorders that collectively present with short stature, pseudomuscular build, stiff joints, and tight skin. Acromelic dysplasias are caused by mutations in genes (FBN1, ADAMTSL2, ADAMTS10, ADAMTS17, LTBP2, and LTBP3) that encode secreted extracellular matrix proteins, and in SMAD4, an intracellular coregulator of transforming growth factor-β (TGF-β) signaling. The shared musculoskeletal presentations in acromelic dysplasias suggest that these proteins cooperate in a biological pathway, but also fulfill distinct roles in specific tissues that are affected in individual disorders of the acromelic dysplasia group. In addition, most of the affected proteins directly interact with fibrillin microfibrils in the extracellular matrix and have been linked to the regulation of TGF-β signaling. Together with recently developed knockout mouse models targeting the affected genes, novel insights into molecular mechanisms of how these proteins regulate musculoskeletal development and homeostasis have emerged. Here, we summarize the current knowledge highlighting pathogenic mechanisms of the different disorders that compose acromelic dysplasias and provide an overview of the emerging biological roles of the individual proteins that are compromised. Finally, we develop a conceptual model of how these proteins may interact and form an "acromelic dysplasia complex" on fibrillin microfibrils in connective tissues of the musculoskeletal system.
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Affiliation(s)
- Sarah Stanley
- Leni & Peter W. May Department of Orthopedics, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Zerina Balic
- Leni & Peter W. May Department of Orthopedics, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Dirk Hubmacher
- Leni & Peter W. May Department of Orthopedics, Icahn School of Medicine at Mount Sinai, New York, New York
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50
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Evans DR, Green JS, Fahiminiya S, Majewski J, Fernandez BA, Deardorff MA, Johnson GJ, Whelan JH, Hubmacher D, Apte SS, Woods MO. A novel pathogenic missense ADAMTS17 variant that impairs secretion causes Weill-Marchesani Syndrome with variably dysmorphic hand features. Sci Rep 2020; 10:10827. [PMID: 32616716 PMCID: PMC7331723 DOI: 10.1038/s41598-020-66978-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 05/27/2020] [Indexed: 12/15/2022] Open
Abstract
Weill-Marchesani syndrome (WMS) is a rare disorder displaying short stature, brachydactyly and joint stiffness, and ocular features including microspherophakia and ectopia lentis. Brachydactyly and joint stiffness appear less commonly in patients with WMS4 caused by pathogenic ADAMTS17 variants. Here, we investigated a large family with WMS from Newfoundland, Canada. These patients displayed core WMS features, but with proportionate hands that were clinically equivocal for brachydactyly. Whole exome sequencing and autozygosity mapping unveiled a novel pathogenic missense ADAMTS17 variant (c.3068 G > A, p.C1023Y). Sanger sequencing demonstrated variant co-segregation with WMS, and absence in 150 population matched controls. Given ADAMTS17 involvement, we performed deep phenotyping of the patients’ hands. Anthropometrics applied to hand roentgenograms showed that metacarpophalangeal measurements of affected patients were smaller than expected for their age and sex, and when compared to their unaffected sibling. Furthermore, we found a possible sub-clinical phenotype involving markedly shortened metacarpophalangeal bones with intrafamilial variability. Transfection of the variant ADAMTS17 into HEK293T cells revealed significantly reduced secretion into the extracellular medium compared to wild-type. This work expands understanding of the molecular pathogenesis of ADAMTS17, clarifies the variable hand phenotype, and underscores a role for anthropometrics in characterizing sub-clinical brachydactyly in these patients.
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Affiliation(s)
- Daniel R Evans
- Discipline of Genetics, Memorial University of Newfoundland, Faculty of Medicine, St. Johns, NL, A1B 3V6, Canada
| | - Jane S Green
- Discipline of Genetics, Memorial University of Newfoundland, Faculty of Medicine, St. Johns, NL, A1B 3V6, Canada
| | - Somayyeh Fahiminiya
- Department of Human Genetics, McGill University, Montréal, QC, H3A 1B1, Canada.,McGill University and Genome Québec Innovation Centre, Montréal, QC, H3A 0G1, Canada
| | - Jacek Majewski
- Department of Human Genetics, McGill University, Montréal, QC, H3A 1B1, Canada.,McGill University and Genome Québec Innovation Centre, Montréal, QC, H3A 0G1, Canada
| | - Bridget A Fernandez
- Discipline of Genetics, Memorial University of Newfoundland, Faculty of Medicine, St. Johns, NL, A1B 3V6, Canada
| | - Matthew A Deardorff
- Division of Genetics, Children's Hospital of Philadelphia, Department of Pediatrics, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, PA, 19104, USA
| | - Gordon J Johnson
- Care of Dr. Jane Green, Discipline of Genetics, Memorial University of Newfoundland, Faculty of Medicine, St. Johns, NL, A1B 3V6, Canada
| | - James H Whelan
- Memorial University of Newfoundland, Faculty of Medicine, Discipline of Surgery (Ophthalmology), St. Johns, NL, A1B 3V6, Canada
| | - Dirk Hubmacher
- Orthopaedic Research Laboratories, Leni and Peter W. May Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Suneel S Apte
- Department of Biomedical Engineering, Cleveland Clinic Lerner Research Institute, Cleveland, OH, 44195, USA
| | | | - Michael O Woods
- Discipline of Genetics, Memorial University of Newfoundland, Faculty of Medicine, St. Johns, NL, A1B 3V6, Canada.
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