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Deflandre LA, Weber T, Ote M, Bourgeois P. [Case report of a cystic lung disease: From a rarity to the discovery of an unknown genetic variant]. Rev Mal Respir 2024:S0761-8425(24)00192-X. [PMID: 38760314 DOI: 10.1016/j.rmr.2024.04.002] [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: 08/08/2023] [Accepted: 04/09/2024] [Indexed: 05/19/2024]
Abstract
INTRODUCTION Cystic lung diseases are rare, with numerous differential diagnoses. Iconographic discovery consequently necessitates medical examinations in view of proposing an etiological orientation. CASE REPORT A 57-year-old woman consulted in pulmonology following fortuitous detection of a cystic lung disease on an abdominal CT scan. Complementary medical examinations did not allow orientation towards a particular diagnosis. During a follow-up consultation, the patient informed her pulmonologist of the recent detection of a monoallelic variant of a FAT4 gene in one of her daughters, who was suffering from edema of the lower limbs secondary to a disease of the lymphatic system. As our patient had a similar history, she likewise received a genetic analysis. A monoallelic variant not described in the genetic databases was observed, and considered as a probable pathogenic variant (class 4/5 on the pathogenicity scale of genetic variants). CONCLUSION After analyzing the available literature data, we raise questions about a possible link between this variant of the FAT4 gene, chronic lymphedema and our patient's cystic lung disease.
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Affiliation(s)
- L-A Deflandre
- Service de pneumologie, CHR Citadelle à Liège, 1, boulevard du Douzième de ligne, 4000 Liège, Belgique.
| | - T Weber
- Service de pneumologie, CHR Citadelle à Liège, 1, boulevard du Douzième de ligne, 4000 Liège, Belgique
| | - M Ote
- Service de radiologie, CHR Citadelle à Liège, Liège, Belgique
| | - P Bourgeois
- Services de dermatologie, médecine nucléaire et chirurgie vasculaire, hôpital Erasme et HIS-IZZ de Bruxelles, clinique de lymphologie, Bruxelles, Belgique
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2
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Tripathi BK, Irvine KD. Contributions of the Dachsous intracellular domain to Dachsous-Fat signaling. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.03.587940. [PMID: 38617303 PMCID: PMC11014530 DOI: 10.1101/2024.04.03.587940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
The protocadherins Fat and Dachsous regulate organ growth, shape, patterning, and planar cell polarity. Although Dachsous and Fat have been described as ligand and receptor, respectively, in a signal transduction pathway, there is also evidence for bidirectional signaling. Here we assess signaling downstream of Dachsous through analysis of its intracellular domain. Genomic deletions of conserved sequences within dachsous identified regions of the intracellular domain required for normal development. Deletion of the A motif increased Dachsous protein levels and decreased wing size. Deletion of the D motif decreased Dachsous levels at cell membranes, increased wing size, and disrupted wing, leg and hindgut patterning and planar cell polarity. Co-immunoprecipitation experiments established that the D motif is necessary and sufficient for association of Dachsous with four key partners: Lowfat, Dachs, Spiny-legs, and MyoID. Subdivision of the D motif identified distinct regions that are preferentially responsible for association with Lft versus Dachs. Our results identify motifs that are essential for Dachsous function and are consistent with the hypothesis that the key function of Dachsous is regulation of Fat.
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Durak T, Karaer D, Karaer K. A case report of Hennekam syndrome with a mutation in the CCBE1 gene. Clin Dysmorphol 2024; 33:87-89. [PMID: 38441203 DOI: 10.1097/mcd.0000000000000488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Affiliation(s)
- Taner Durak
- Department of Medical Genetics, Faculty of Medicine, Pamukkale University, Denizli, Turkey
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4
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Kuonqui K, Campbell AC, Sarker A, Roberts A, Pollack BL, Park HJ, Shin J, Brown S, Mehrara BJ, Kataru RP. Dysregulation of Lymphatic Endothelial VEGFR3 Signaling in Disease. Cells 2023; 13:68. [PMID: 38201272 PMCID: PMC10778007 DOI: 10.3390/cells13010068] [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: 11/15/2023] [Revised: 12/20/2023] [Accepted: 12/26/2023] [Indexed: 01/12/2024] Open
Abstract
Vascular endothelial growth factor (VEGF) receptor 3 (VEGFR3), a receptor tyrosine kinase encoded by the FLT4 gene, plays a significant role in the morphogenesis and maintenance of lymphatic vessels. Under both normal and pathologic conditions, VEGF-C and VEGF-D bind VEGFR3 on the surface of lymphatic endothelial cells (LECs) and induce lymphatic proliferation, migration, and survival by activating intracellular PI3K-Akt and MAPK-ERK signaling pathways. Impaired lymphatic function and VEGFR3 signaling has been linked with a myriad of commonly encountered clinical conditions. This review provides a brief overview of intracellular VEGFR3 signaling in LECs and explores examples of dysregulated VEGFR3 signaling in various disease states, including (1) lymphedema, (2) tumor growth and metastasis, (3) obesity and metabolic syndrome, (4) organ transplant rejection, and (5) autoimmune disorders. A more complete understanding of the molecular mechanisms underlying the lymphatic pathology of each disease will allow for the development of novel strategies to treat these chronic and often debilitating illnesses.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Babak J. Mehrara
- Plastic and Reconstructive Surgery Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Raghu P. Kataru
- Plastic and Reconstructive Surgery Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
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5
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Affiliation(s)
- Ahmet Ozen
- From the Department of Pediatrics, Division of Allergy and Immunology, Marmara University, School of Medicine, the Istanbul Jeffrey Modell Diagnostic Center for Primary Immunodeficiency Diseases, and the Isil Berat Barlan Center for Translational Medicine - all in Istanbul, Turkey (A.O.); and the Molecular Development of the Immune System Section, Laboratory of Immune System Biology, Clinical Genomics Program, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD (M.J.L.)
| | - Michael J Lenardo
- From the Department of Pediatrics, Division of Allergy and Immunology, Marmara University, School of Medicine, the Istanbul Jeffrey Modell Diagnostic Center for Primary Immunodeficiency Diseases, and the Isil Berat Barlan Center for Translational Medicine - all in Istanbul, Turkey (A.O.); and the Molecular Development of the Immune System Section, Laboratory of Immune System Biology, Clinical Genomics Program, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD (M.J.L.)
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6
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Shinwari K, Wu Y, Rehman HM, Xiao N, Bolkov M, Tuzankina I, Chereshnev V. In-silico assessment of high-risk non-synonymous SNPs in ADAMTS3 gene associated with Hennekam syndrome and their impact on protein stability and function. BMC Bioinformatics 2023; 24:251. [PMID: 37322437 DOI: 10.1186/s12859-023-05361-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 05/25/2023] [Indexed: 06/17/2023] Open
Abstract
Hennekam Lymphangiectasia-Lymphedema Syndrome 3 (HKLLS3) is a rare genetical disorder caused by mutations in a few genes including ADAMTS3. It is characterized by lymphatic dysplasia, intestinal lymphangiectasia, severe lymphedema and distinctive facial appearance. Up till now, no extensive studies have been conducted to elucidate the mechanism of the disease caused by various mutations. As a preliminary investigation of HKLLS3, we sorted out the most deleterious nonsynonymous single nucleotide polymorphisms (nsSNPs) that might affect the structure and function of ADAMTS3 protein by using a variety of in silico tools. A total of 919 nsSNPs in the ADAMTS3 gene were identified. 50 nsSNPs were predicted to be deleterious by multiple computational tools. 5 nsSNPs (G298R, C567Y, A370T, C567R and G374S) were found to be the most dangerous and can be associated with the disease as predicted by different bioinformatics tools. Modelling of the protein shows it can be divided into segments 1, 2 and 3, which are connected by short loops. Segment 3 mainly consists of loops without substantial secondary structures. With prediction tools and molecular dynamics simulation, some SNPs were found to significantly destabilize the protein structure and disrupt the secondary structures, especially in segment 2. The deleterious effects of mutations in segment 1 are possibly not from destabilization but from other factors such as the change in phosphorylation as suggested by post-translational modification (PTM) studies. This is the first-ever study of ADAMTS3 gene polymorphism, and the predicted nsSNPs in ADAMST3, some of which have not been reported yet in patients, will serve for diagnostic purposes and further therapeutic implications in Hennekam syndrome, contributing to better diagnosis and treatment.
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Affiliation(s)
- Khyber Shinwari
- Institute of Chemical Engineering, Department of Immunochemistry, Ural Federal University, Yekaterinburg, Russia.
- Insitutite of Immunology and Physiology, Russian Academy of Science, Yekaterinburg, Russia.
| | - Yurong Wu
- Department of Chemistry, Hong Kong University of Science and Technology, Hong Kong, China
| | | | - Ningkun Xiao
- Department of Psychology, Ural Federal University, Yekaterinburg, Russia
| | - Mikhail Bolkov
- Insitutite of Immunology and Physiology, Russian Academy of Science, Yekaterinburg, Russia
| | - Irina Tuzankina
- Insitutite of Immunology and Physiology, Russian Academy of Science, Yekaterinburg, Russia
| | - Valery Chereshnev
- Insitutite of Immunology and Physiology, Russian Academy of Science, Yekaterinburg, Russia
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7
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Dranow DB, Le Pabic P, Schilling TF. The non-canonical Wnt receptor Ror2 is required for cartilage cell polarity and morphogenesis of the craniofacial skeleton in zebrafish. Development 2023; 150:dev201273. [PMID: 37039156 PMCID: PMC10163346 DOI: 10.1242/dev.201273] [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: 09/02/2022] [Accepted: 03/21/2023] [Indexed: 04/12/2023]
Abstract
Non-canonical/β-catenin-independent Wnt signaling plays crucial roles in tissue/cell polarity in epithelia, but its functions have been less well studied in mesenchymal tissues, such as the skeleton. Mutations in non-canonical Wnt signaling pathway genes cause human skeletal diseases such as Robinow syndrome and Brachydactyly Type B1, which disrupt bone growth throughout the endochondral skeleton. Ror2 is one of several non-canonical Wnt receptor/co-receptors. Here, we show that ror2-/- mutant zebrafish have craniofacial skeletal defects, including disruptions of chondrocyte polarity. ror1-/- mutants appear to be phenotypically wild type, but loss of both ror1 and ror2 leads to more severe cartilage defects, indicating partial redundancy. Skeletal defects in ror1/2 double mutants resemble those of wnt5b-/- mutants, suggesting that Wnt5b is the primary Ror ligand in zebrafish. Surprisingly, the proline-rich domain of Ror2, but not its kinase domain, is required to rescue its function in mosaic transgenic experiments in ror2-/- mutants. These results suggest that endochondral bone defects in ROR-related human syndromes reflect defects in cartilage polarity and morphogenesis.
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Affiliation(s)
- Daniel B. Dranow
- Department of Developmental and Cell Biology, University of California, Irvine, CA 92697, USA
| | - Pierre Le Pabic
- Department of Biology & Marine Biology, University of North Carolina, Wilmington, NC 28403, USA
| | - Thomas F. Schilling
- Department of Developmental and Cell Biology, University of California, Irvine, CA 92697, USA
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Structure of the planar cell polarity cadherins Fat4 and Dachsous1. Nat Commun 2023; 14:891. [PMID: 36797229 PMCID: PMC9935876 DOI: 10.1038/s41467-023-36435-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 02/01/2023] [Indexed: 02/18/2023] Open
Abstract
The atypical cadherins Fat and Dachsous are key regulators of cell growth and animal development. In contrast to classical cadherins, which form homophilic interactions to segregate cells, Fat and Dachsous cadherins form heterophilic interactions to induce cell polarity within tissues. Here, we determine the co-crystal structure of the human homologs Fat4 and Dachsous1 (Dchs1) to establish the molecular basis for Fat-Dachsous interactions. The binding domains of Fat4 and Dchs1 form an extended interface along extracellular cadherin (EC) domains 1-4 of each protein. Biophysical measurements indicate that Fat4-Dchs1 affinity is among the highest reported for cadherin superfamily members, which is attributed to an extensive network of salt bridges not present in structurally similar protocadherin homodimers. Furthermore, modeling suggests that unusual extracellular phosphorylation modifications directly modulate Fat-Dachsous binding by introducing charged contacts across the interface. Collectively, our analyses reveal how the molecular architecture of Fat4-Dchs1 enables them to form long-range, high-affinity interactions to maintain planar cell polarity.
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9
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Stallard L, Siddiqui I, Muise A. Beyond IBD: the genetics of other early-onset diarrhoeal disorders. Hum Genet 2023; 142:655-667. [PMID: 36788146 PMCID: PMC10182111 DOI: 10.1007/s00439-023-02524-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 01/19/2023] [Indexed: 02/16/2023]
Abstract
Diarrhoeal disorders in childhood extend beyond the inflammatory bowel diseases. Persistent and severe forms of diarrhoea can occur from birth and are associated with significant morbidity and mortality. These disorders can affect not only the gastrointestinal tract but frequently have extraintestinal manifestations, immunodeficiencies and endocrinopathies. Genomic analysis has advanced our understanding of these conditions and has revealed precision-based treatment options such as potentially curative haematopoietic stem cell transplant. Although many new mutations have been discovered, there is frequently no clear genotype-phenotype correlation. The functional effects of gene mutations can be studied in model systems such as patient-derived organoids. This allows us to further characterise these disorders and advance our understanding of the pathophysiology of the intestinal mucosa. In this review, we will provide an up to date overview of genes involved in diarrhoeal disorders of early onset, particularly focussing on the more recently described gene defects associated with protein loosing enteropathy.
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Affiliation(s)
- Lorraine Stallard
- SickKids Inflammatory Bowel Disease Centre, The Hospital for Sick Children, Toronto, ON, Canada
| | - Iram Siddiqui
- Division of Pathology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Aleixo Muise
- SickKids Inflammatory Bowel Disease Centre, The Hospital for Sick Children, Toronto, ON, Canada. .,Cell Biology Program, Research Institute, The Hospital for Sick Children, Toronto, ON, Canada. .,Department of Pediatrics, Institute of Medical Science and Biochemistry, University of Toronto, The Hospital for Sick Children, Toronto, ON, Canada.
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10
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Shinwari K, Rehman HM, Xiao N, Guojun L, Khan MA, Bolkov MA, Tuzankina IA, Chereshnev VA. Novel high-risk missense mutations identification in FAT4 gene causing Hennekam syndrome and Van Maldergem syndrome 2 through molecular dynamics simulation. INFORMATICS IN MEDICINE UNLOCKED 2023. [DOI: 10.1016/j.imu.2023.101160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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11
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Kasiah J, McNeill H. Fat and Dachsous cadherins in mammalian development. Curr Top Dev Biol 2023; 154:223-244. [PMID: 37100519 DOI: 10.1016/bs.ctdb.2023.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Cell growth and patterning are critical for tissue development. Here we discuss the evolutionarily conserved cadherins, Fat and Dachsous, and the roles they play during mammalian tissue development and disease. In Drosophila, Fat and Dachsous regulate tissue growth via the Hippo pathway and planar cell polarity (PCP). The Drosophila wing has been an ideal tissue to observe how mutations in these cadherins affect tissue development. In mammals, there are multiple Fat and Dachsous cadherins, which are expressed in many tissues, but mutations in these cadherins that affect growth and tissue organization are context dependent. Here we examine how mutations in the Fat and Dachsous mammalian genes affect development in mammals and contribute to human disease.
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Affiliation(s)
- Jennysue Kasiah
- Department of Developmental Biology, Washington University School of Medicine in St. Louis, St. Louis, MO, United States
| | - Helen McNeill
- Department of Developmental Biology, Washington University School of Medicine in St. Louis, St. Louis, MO, United States.
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12
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Rahmani N, Ahmadvand M, Khakpour G. Use of expanded carrier screening for retrospective diagnosis of two deceased siblings with Van Maldergem syndrome 2: case report. ASIAN BIOMED 2022; 16:322-328. [PMID: 37551355 PMCID: PMC10392142 DOI: 10.2478/abm-2022-0036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Van Maldergem syndrome (VMLDS) is a recessive disease which affects multiple organs including the face, ear, and limb extremities. It can be caused by pathogenic variants in either the gene DCHS1 or FAT4. Diagnosis of VMLDS is complicated, especially regarding its similarity of symptoms to Hennekam syndrome, another disorder caused by FAT4 variants. Reported patients are two infantile siblings with multiple congenital anomalies, who deceased without clinical diagnosis. Whole exome sequencing was exploited for expanded carrier screening (ECS) of their parents, which revealed a novel splicing variant in the gene FAT4, NM_024582.6: c.7018+1G>A. In silico analysis of the variant indicates loss of canonical donor splice site of intron 6. This variant is classified as pathogenic based on ACMG criteria. Reverse phenotyping of patients resulted in likely diagnosis of VMLDS2. This study reaffirms the possibility of using ECS, leading to the genetic diagnosis of a rare disease with complicated clinical features.
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Affiliation(s)
- Nasim Rahmani
- Department of Medical Genetics and Molecular Biology, School of Medicine, Iran University of Medical Sciences, Tehran1449614535, Iran
| | - Mohammad Ahmadvand
- Department of Oncology and Stem Cell Transplantation, Shariati Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran1411713135, Iran
| | - Golnaz Khakpour
- Department of Medical Genetics and Molecular Biology, School of Medicine, Iran University of Medical Sciences, Tehran1449614535, Iran
- Department of Eye Research Center, The Five Senses Institute, Rassoul Akram Hospital, School of Medicine, Iran University of Medical Sciences, Tehran1445613131, Iran
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Bittner NKJ, Mack KL, Nachman MW. Shared Patterns of Gene Expression and Protein Evolution Associated with Adaptation to Desert Environments in Rodents. Genome Biol Evol 2022; 14:6765154. [PMID: 36268582 PMCID: PMC9648513 DOI: 10.1093/gbe/evac155] [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] [Accepted: 10/17/2022] [Indexed: 01/18/2023] Open
Abstract
Desert specialization has arisen multiple times across rodents and is often associated with a suite of convergent phenotypes, including modification of the kidneys to mitigate water loss. However, the extent to which phenotypic convergence in desert rodents is mirrored at the molecular level is unknown. Here, we sequenced kidney mRNA and assembled transcriptomes for three pairs of rodent species to search for shared differences in gene expression and amino acid sequence associated with adaptation to deserts. We conducted phylogenetically independent comparisons between a desert specialist and a non-desert relative in three families representing ∼70 million years of evolution. Overall, patterns of gene expression faithfully recapitulated the phylogeny of these six taxa providing a strong evolutionary signal in levels of mRNA abundance. We also found that 8.6% of all genes showed shared patterns of expression divergence between desert and non-desert taxa, much of which likely reflects convergent evolution, and representing more than expected by chance under a model of independent gene evolution. In addition to these shared changes, we observed many species-pair-specific changes in gene expression indicating that instances of adaptation to deserts include a combination of unique and shared changes. Patterns of protein evolution revealed a small number of genes showing evidence of positive selection, the majority of which did not show shared changes in gene expression. Overall, our results suggest that convergent changes in gene regulation play an important role in the complex trait of desert adaptation in rodents.
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Affiliation(s)
- Noëlle K J Bittner
- Department of Integrative Biology and Museum of Vertebrate Zoology, 3101 Valley Life Sciences Building, University of California Berkeley, California 94720
| | - Katya L Mack
- Present address: Department of Biology, Stanford University, CA 94305
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Setty BA, Wusik K, Hammill AM. How we approach genetics in the diagnosis and management of vascular anomalies. Pediatr Blood Cancer 2022; 69 Suppl 3:e29320. [PMID: 36070212 DOI: 10.1002/pbc.29320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 08/16/2021] [Accepted: 08/17/2021] [Indexed: 01/04/2023]
Abstract
Vascular anomalies are a heterogeneous group of disorders that are currently classified based on their clinical and histological characteristics. Over the past decade, there have been significant advances in molecular genetics that have led to identification of genetic alterations associated with vascular tumors, vascular malformations, and syndromes. Here, we describe known genetic alterations in vascular anomalies, discuss when and how to test, and examine how identification of causative genetic mutations provides for better management of these disorders through improved understanding of their pathogenesis and increasing use of targeted therapeutic agents in order to achieve better outcomes for our patients.
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Affiliation(s)
- Bhuvana A Setty
- Division of Hematology/Oncology/BMT, Nationwide Children's Hospital, and Department of Pediatrics, The Ohio State University, Columbus, Ohio, USA
| | - Katie Wusik
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Adrienne M Hammill
- Division of Hematology, Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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15
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Geng X, Srinivasan RS. Molecular Mechanisms Driving Lymphedema and Other Lymphatic Anomalies. Cold Spring Harb Perspect Med 2022; 12:a041272. [PMID: 35817543 PMCID: PMC9341459 DOI: 10.1101/cshperspect.a041272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Lymphatic vasculature regulates fluid homeostasis by absorbing interstitial fluid and returning it to blood. Lymphatic vasculature is also critical for lipid absorption and inflammatory response. Lymphatic vasculature is composed of lymphatic capillaries, collecting lymphatic vessels, lymphatic valves, and lymphovenous valves. Defects in any of these structures could lead to lymphatic anomalies such as lymphedema, cystic lymphatic malformation, and Gorham-Stout disease. Basic research has led to a deeper understanding of the stepwise development of the lymphatic vasculature. VEGF-C and shear stress signaling pathways have evolved as critical regulators of lymphatic vascular development. Loss-of-function and gain-of-function mutations in genes that are involved in these signaling pathways are associated with lymphatic anomalies. Importantly, drugs that target these molecules are showing outstanding efficacy in treating certain lymphatic anomalies. In this article, we summarize these exciting developments and highlight the future challenges.
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Affiliation(s)
- Xin Geng
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma 73013, USA
| | - R Sathish Srinivasan
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma 73013, USA
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73117, USA
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16
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Choi D, Park E, Yu RP, Cooper MN, Cho IT, Choi J, Yu J, Zhao L, Yum JEI, Yu JS, Nakashima B, Lee S, Seong YJ, Jiao W, Koh CJ, Baluk P, McDonald DM, Saraswathy S, Lee JY, Jeon NL, Zhang Z, Huang AS, Zhou B, Wong AK, Hong YK. Piezo1-Regulated Mechanotransduction Controls Flow-Activated Lymphatic Expansion. Circ Res 2022; 131:e2-e21. [PMID: 35701867 PMCID: PMC9308715 DOI: 10.1161/circresaha.121.320565] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
BACKGROUND Mutations in PIEZO1 (Piezo type mechanosensitive ion channel component 1) cause human lymphatic malformations. We have previously uncovered an ORAI1 (ORAI calcium release-activated calcium modulator 1)-mediated mechanotransduction pathway that triggers lymphatic sprouting through Notch downregulation in response to fluid flow. However, the identity of its upstream mechanosensor remains unknown. This study aimed to identify and characterize the molecular sensor that translates the flow-mediated external signal to the Orai1-regulated lymphatic expansion. METHODS Various mutant mouse models, cellular, biochemical, and molecular biology tools, and a mouse tail lymphedema model were employed to elucidate the role of Piezo1 in flow-induced lymphatic growth and regeneration. RESULTS Piezo1 was found to be abundantly expressed in lymphatic endothelial cells. Piezo1 knockdown in cultured lymphatic endothelial cells inhibited the laminar flow-induced calcium influx and abrogated the flow-mediated regulation of the Orai1 downstream genes, such as KLF2 (Krüppel-like factor 2), DTX1 (Deltex E3 ubiquitin ligase 1), DTX3L (Deltex E3 ubiquitin ligase 3L,) and NOTCH1 (Notch receptor 1), which are involved in lymphatic sprouting. Conversely, stimulation of Piezo1 activated the Orai1-regulated mechanotransduction in the absence of fluid flow. Piezo1-mediated mechanotransduction was significantly blocked by Orai1 inhibition, establishing the epistatic relationship between Piezo1 and Orai1. Lymphatic-specific conditional Piezo1 knockout largely phenocopied sprouting defects shown in Orai1- or Klf2- knockout lymphatics during embryo development. Postnatal deletion of Piezo1 induced lymphatic regression in adults. Ectopic Dtx3L expression rescued the lymphatic defects caused by Piezo1 knockout, affirming that the Piezo1 promotes lymphatic sprouting through Notch downregulation. Consistently, transgenic Piezo1 expression or pharmacological Piezo1 activation enhanced lymphatic sprouting. Finally, we assessed a potential therapeutic value of Piezo1 activation in lymphatic regeneration and found that a Piezo1 agonist, Yoda1, effectively suppressed postsurgical lymphedema development. CONCLUSIONS Piezo1 is an upstream mechanosensor for the lymphatic mechanotransduction pathway and regulates lymphatic growth in response to external physical stimuli. Piezo1 activation presents a novel therapeutic opportunity for preventing postsurgical lymphedema. The Piezo1-regulated lymphangiogenesis mechanism offers a molecular basis for Piezo1-associated lymphatic malformation in humans.
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Affiliation(s)
- Dongwon Choi
- Department of Surgery, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Eunkyung Park
- Department of Surgery, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Roy P. Yu
- Department of Surgery, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Michael N. Cooper
- Department of Surgery, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Il-Taeg Cho
- Department of Surgery, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Joshua Choi
- Department of Surgery, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - James Yu
- Department of Surgery, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Luping Zhao
- Department of Surgery, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Ji-Eun Irene Yum
- Department of Surgery, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Jin Suh Yu
- Department of Surgery, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Brandon Nakashima
- Department of Surgery, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Sunju Lee
- Department of Surgery, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Young Jin Seong
- Department of Surgery, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Wan Jiao
- Department of Surgery, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Chester J. Koh
- Division of Pediatric Urology, Texas Children’s Hospital, Baylor College of Medicine, Houston, Texas, USA
| | - Peter Baluk
- Cardiovascular Research Institute, UCSF Helen Diller Family Comprehensive Cancer Center, and Department of Anatomy, University of California, San Francisco, San Francisco, California, USA
| | - Donald M. McDonald
- Cardiovascular Research Institute, UCSF Helen Diller Family Comprehensive Cancer Center, and Department of Anatomy, University of California, San Francisco, San Francisco, California, USA
| | - Sindhu Saraswathy
- Doheny Eye Institute and Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Jong Y. Lee
- Doheny Eye Institute and Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Noo Li Jeon
- Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul, Republic of Korea
| | - Zhenqian Zhang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Alex S. Huang
- Doheny Eye Institute and Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Bin Zhou
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Alex K. Wong
- Division of Plastic Surgery, City of Hope National Medical Center, Duarte, California, USA
| | - Young-Kwon Hong
- Department of Surgery, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
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17
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Bonetti G, Paolacci S, Samaja M, Maltese PE, Michelini S, Michelini S, Michelini S, Ricci M, Cestari M, Dautaj A, Medori MC, Bertelli M. Low Efficacy of Genetic Tests for the Diagnosis of Primary Lymphedema Prompts Novel Insights into the Underlying Molecular Pathways. Int J Mol Sci 2022; 23:ijms23137414. [PMID: 35806420 PMCID: PMC9267137 DOI: 10.3390/ijms23137414] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/16/2022] [Accepted: 06/29/2022] [Indexed: 02/07/2023] Open
Abstract
Lymphedema is a chronic inflammatory disorder caused by ineffective fluid uptake by the lymphatic system, with effects mainly on the lower limbs. Lymphedema is either primary, when caused by genetic mutations, or secondary, when it follows injury, infection, or surgery. In this study, we aim to assess to what extent the current genetic tests detect genetic variants of lymphedema, and to identify the major molecular pathways that underlie this rather unknown disease. We recruited 147 individuals with a clinical diagnosis of primary lymphedema and used established genetic tests on their blood or saliva specimens. Only 11 of these were positive, while other probands were either negative (63) or inconclusive (73). The low efficacy of such tests calls for greater insight into the underlying mechanisms to increase accuracy. For this purpose, we built a molecular pathways diagram based on a literature analysis (OMIM, Kegg, PubMed, Scopus) of candidate and diagnostic genes. The PI3K/AKT and the RAS/MAPK pathways emerged as primary candidates responsible for lymphedema diagnosis, while the Rho/ROCK pathway appeared less critical. The results of this study suggest the most important pathways involved in the pathogenesis of lymphedema, and outline the most promising diagnostic and candidate genes to diagnose this disease.
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Affiliation(s)
- Gabriele Bonetti
- MAGI’s LAB, 38068 Rovereto, Italy; (S.P.); (P.E.M.); (A.D.); (M.C.M.); (M.B.)
- Correspondence: ; Tel.: +39-0365-62-061
| | - Stefano Paolacci
- MAGI’s LAB, 38068 Rovereto, Italy; (S.P.); (P.E.M.); (A.D.); (M.C.M.); (M.B.)
| | | | | | - Sandro Michelini
- Vascular Diagnostics and Rehabilitation Service, Marino Hospital, ASL Roma 6, 00047 Marino, Italy;
| | - Serena Michelini
- Unit of Physical Medicine, “Sapienza” University of Rome, 00185 Rome, Italy;
| | | | - Maurizio Ricci
- Division of Rehabilitation Medicine, Azienda Ospedaliero-Universitaria, Ospedali Riuniti di Ancona, 60126 Ancona, Italy;
| | - Marina Cestari
- Study Centre Pianeta Linfedema, 05100 Terni, Italy;
- Lymphology Sector of the Rehabilitation Service, USLUmbria2, 05100 Terni, Italy
| | - Astrit Dautaj
- MAGI’s LAB, 38068 Rovereto, Italy; (S.P.); (P.E.M.); (A.D.); (M.C.M.); (M.B.)
| | - Maria Chiara Medori
- MAGI’s LAB, 38068 Rovereto, Italy; (S.P.); (P.E.M.); (A.D.); (M.C.M.); (M.B.)
| | - Matteo Bertelli
- MAGI’s LAB, 38068 Rovereto, Italy; (S.P.); (P.E.M.); (A.D.); (M.C.M.); (M.B.)
- MAGI Group, 25010 San Felice del Benaco, Italy;
- MAGI Euregio, 39100 Bolzano, Italy
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18
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Sudduth CL, Greene AK. Primary Lymphedema: Update on Genetic Basis and Management. Adv Wound Care (New Rochelle) 2022; 11:374-381. [PMID: 33502936 DOI: 10.1089/wound.2020.1338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Significance: Primary lymphedema is a chronic condition without a cure. The lower extremities are more commonly affected than the arms or genitalia. The disease can be syndromic. Morbidity includes decreased self-esteem, infections, and reduced function of the area. Recent Advances: Several mutations can cause lymphedema, and new variants continue to be elucidated. A critical determinant that predicts the natural history and morbidity of lymphedema is the patient's body mass index (BMI). Individuals who maintain an active lifestyle with a normal BMI generally have less severe disease compared to subjects who are obese. Because other causes of lower extremity enlargement can be confused with lymphedema, definitive diagnosis requires lymphoscintigraphy. Critical Issues: Most patients with primary lymphedema are satisfactorily managed with compression regimens, exercise, and maintenance of a normal body weight. Suction-assisted lipectomy is our preferred operative intervention for symptomatic patients who have failed conservative therapy. Suction-assisted lipectomy effectively removes excess subcutaneous fibro-adipose tissue and can improve underlying lymphatic function. Future Directions: Many patients with primary lymphedema do not have an identifiable mutation and thus novel variants will be identified. The mechanisms by which mutations cause lymphedema continue to be studied. In the future, drug therapy for the disease may be developed.
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Affiliation(s)
- Christopher L. Sudduth
- Lymphedema Program, Department of Plastic and Oral Surgery, Harvard Medical School, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Arin K. Greene
- Lymphedema Program, Department of Plastic and Oral Surgery, Harvard Medical School, Boston Children's Hospital, Boston, Massachusetts, USA
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19
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Role of Transcriptional and Epigenetic Regulation in Lymphatic Endothelial Cell Development. Cells 2022; 11:cells11101692. [PMID: 35626729 PMCID: PMC9139870 DOI: 10.3390/cells11101692] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/13/2022] [Accepted: 05/17/2022] [Indexed: 12/04/2022] Open
Abstract
The lymphatic system is critical for maintaining the homeostasis of lipids and interstitial fluid and regulating the immune cell development and functions. Developmental anomaly-induced lymphatic dysfunction is associated with various pathological conditions, including lymphedema, inflammation, and cancer. Most lymphatic endothelial cells (LECs) are derived from a subset of endothelial cells in the cardinal vein. However, recent studies have reported that the developmental origin of LECs is heterogeneous. Multiple regulatory mechanisms, including those mediated by signaling pathways, transcription factors, and epigenetic pathways, are involved in lymphatic development and functions. Recent studies have demonstrated that the epigenetic regulation of transcription is critical for embryonic LEC development and functions. In addition to the chromatin structures, epigenetic modifications may modulate transcriptional signatures during the development or differentiation of LECs. Therefore, the understanding of the epigenetic mechanisms involved in the development and function of the lymphatic system can aid in the management of various congenital or acquired lymphatic disorders. Future studies must determine the role of other epigenetic factors and changes in mammalian lymphatic development and function. Here, the recent findings on key factors involved in the development of the lymphatic system and their epigenetic regulation, LEC origins from different organs, and lymphatic diseases are reviewed.
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20
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Li X, Qi L, Yang D, Hao S, Zhang F, Zhu X, Sun Y, Chen C, Ye J, Yang J, Zhao L, Altmann DM, Cao S, Wang H, Wei B. Meningeal lymphatic vessels mediate neurotropic viral drainage from the central nervous system. Nat Neurosci 2022; 25:577-587. [PMID: 35524140 DOI: 10.1038/s41593-022-01063-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 03/24/2022] [Indexed: 01/13/2023]
Abstract
Recent studies have demonstrated that brain meningeal lymphatic vessels (MLVs) act as a drainage path directly into the cervical lymph nodes (CLNs) for macromolecules contained in the cerebrospinal fluid (CSF). However, the role of MLVs during CNS viral infection remains unexplored. Here, we found that infection with several neurotropic viruses in mice promotes MLV expansion but also causes impaired MLV-mediated drainage of macromolecules. Notably, MLVs could drain virus from the CNS to CLNs. Surgical ligation of the lymph vessels or photodynamic ablation of dorsal MLVs increased neurological damage and mortality of virus-infected mice. By contrast, pretreatment with vascular endothelial growth factor C promoted expansion of functional MLVs and alleviated the effects of viral infection. Together, these data indicate that functional MLVs facilitate virus clearance, and MLVs represent a critical path for virus spreading from the CNS to the CLNs. MLV-based therapeutic strategies may thus be useful for alleviating infection-induced neurological damage.
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Affiliation(s)
- Xiaojing Li
- Institute of Geriatrics, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, China.,Shanghai Engineering Research Center of Organ Repair, School of Life Sciences, Shanghai University, Shanghai, China.,Cancer Center, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China.,State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Wuhan, China
| | - Linlin Qi
- Institute of Geriatrics, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, China.,Shanghai Engineering Research Center of Organ Repair, School of Life Sciences, Shanghai University, Shanghai, China.,State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Wuhan, China
| | - Dan Yang
- Shanghai Engineering Research Center of Organ Repair, School of Life Sciences, Shanghai University, Shanghai, China.,State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Wuhan, China
| | - ShuJie Hao
- Institute of Geriatrics, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, China.,Shanghai Engineering Research Center of Organ Repair, School of Life Sciences, Shanghai University, Shanghai, China
| | - Fang Zhang
- Shanghai Engineering Research Center of Organ Repair, School of Life Sciences, Shanghai University, Shanghai, China.,Cancer Center, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China.,State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Wuhan, China
| | - Xingguo Zhu
- Institute of Geriatrics, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, China.,Shanghai Engineering Research Center of Organ Repair, School of Life Sciences, Shanghai University, Shanghai, China
| | - Yue Sun
- School of Life Sciences, Peking University, Beijing, China
| | - Chen Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
| | - Jing Ye
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
| | - Jing Yang
- School of Life Sciences, Peking University, Beijing, China
| | - Ling Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
| | - Daniel M Altmann
- Department of Immunology and Inflammation, Imperial College, Faculty of Medicine, Hammersmith Hospital, London, UK
| | - Shengbo Cao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
| | - Hongyan Wang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China. .,School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China.
| | - Bin Wei
- Institute of Geriatrics, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, China. .,Shanghai Engineering Research Center of Organ Repair, School of Life Sciences, Shanghai University, Shanghai, China. .,Cancer Center, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China. .,State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Wuhan, China.
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21
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Blei F. Update April 2022. Lymphat Res Biol 2022; 20:228-244. [PMID: 35467969 DOI: 10.1089/lrb.2022.29121.fb] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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22
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Gridnev A, Misra JR. Emerging Mechanisms of Growth and Patterning Regulation by Dachsous and Fat Protocadherins. Front Cell Dev Biol 2022; 10:842593. [PMID: 35372364 PMCID: PMC8967653 DOI: 10.3389/fcell.2022.842593] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 02/08/2022] [Indexed: 01/14/2023] Open
Abstract
Dachsous (Ds) and Fat are evolutionarily conserved cell adhesion molecules that play a critical role in development of multiple organ systems, where they coordinate tissue growth and morphogenesis. Much of our understanding of Ds-Fat signaling pathway comes from studies in Drosophila, where they initiate a signaling pathway that regulate growth by influencing Hippo signaling and morphogenesis by regulating Planar Cell Polarity (PCP). In this review, we discuss recent advances in our understanding of the mechanisms by which Ds-Fat signaling pathway regulates these critical developmental processes. Further, we discuss the progress in our understanding about how they function in mammals.
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23
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Primäre intestinale Lymphangiektasie und proteinverlierende Enteropathie bei Kindern und Jugendlichen. Monatsschr Kinderheilkd 2021. [DOI: 10.1007/s00112-020-01005-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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24
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Brouillard P, Witte MH, Erickson RP, Damstra RJ, Becker C, Quéré I, Vikkula M. Primary lymphoedema. Nat Rev Dis Primers 2021; 7:77. [PMID: 34675250 DOI: 10.1038/s41572-021-00309-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/17/2021] [Indexed: 11/09/2022]
Abstract
Lymphoedema is the swelling of one or several parts of the body owing to lymph accumulation in the extracellular space. It is often chronic, worsens if untreated, predisposes to infections and causes an important reduction in quality of life. Primary lymphoedema (PLE) is thought to result from abnormal development and/or functioning of the lymphatic system, can present in isolation or as part of a syndrome, and can be present at birth or develop later in life. Mutations in numerous genes involved in the initial formation of lymphatic vessels (including valves) as well as in the growth and expansion of the lymphatic system and associated pathways have been identified in syndromic and non-syndromic forms of PLE. Thus, the current hypothesis is that most cases of PLE have a genetic origin, although a causative mutation is identified in only about one-third of affected individuals. Diagnosis relies on clinical presentation, imaging of the structure and functionality of the lymphatics, and in genetic analyses. Management aims at reducing or preventing swelling by compression therapy (with manual drainage, exercise and compressive garments) and, in carefully selected cases, by various surgical techniques. Individuals with PLE often have a reduced quality of life owing to the psychosocial and lifelong management burden associated with their chronic condition. Improved understanding of the underlying genetic origins of PLE will translate into more accurate diagnosis and prognosis and personalized treatment.
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Affiliation(s)
- Pascal Brouillard
- Human Molecular Genetics, de Duve Institute, University of Louvain, Brussels, Belgium
| | - Marlys H Witte
- Department of Surgery, Neurosurgery, and Pediatrics, University of Arizona College of Medicine, Tucson, AZ, USA
| | - Robert P Erickson
- Department of Pediatrics, University of Arizona College of Medicine, Tucson, AZ, USA
| | - Robert J Damstra
- VASCERN PPL European Reference Centre; Department of Dermatology, Phlebology and Lymphology, Nij Smellinghe Hospital, Drachten, Netherlands
| | | | - Isabelle Quéré
- Department of Vascular Medicine, Centre de référence des Maladies Lymphatiques et Vasculaires Rares, Inserm IDESP, CHU Montpellier, Université de Montpellier, Montpellier, France
| | - Miikka Vikkula
- Human Molecular Genetics, de Duve Institute, University of Louvain, Brussels, Belgium. .,VASCERN VASCA European Reference Centre; Center for Vascular Anomalies, Division of Plastic Surgery, University Clinics Saint-Luc, University of Louvain, Brussels, Belgium. .,Walloon Excellence in Lifesciences and Biotechnology (WELBIO), de Duve Institute, University of Louvain, Brussels, Belgium.
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25
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Martin-Almedina S, Mortimer PS, Ostergaard P. Development and physiological functions of the lymphatic system: insights from human genetic studies of primary lymphedema. Physiol Rev 2021; 101:1809-1871. [PMID: 33507128 DOI: 10.1152/physrev.00006.2020] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Primary lymphedema is a long-term (chronic) condition characterized by tissue lymph retention and swelling that can affect any part of the body, although it usually develops in the arms or legs. Due to the relevant contribution of the lymphatic system to human physiology, while this review mainly focuses on the clinical and physiological aspects related to the regulation of fluid homeostasis and edema, clinicians need to know that the impact of lymphatic dysfunction with a genetic origin can be wide ranging. Lymphatic dysfunction can affect immune function so leading to infection; it can influence cancer development and spread, and it can determine fat transport so impacting on nutrition and obesity. Genetic studies and the development of imaging techniques for the assessment of lymphatic function have enabled the recognition of primary lymphedema as a heterogenic condition in terms of genetic causes and disease mechanisms. In this review, the known biological functions of several genes crucial to the development and function of the lymphatic system are used as a basis for understanding normal lymphatic biology. The disease conditions originating from mutations in these genes are discussed together with a detailed clinical description of the phenotype and the up-to-date knowledge in terms of disease mechanisms acquired from in vitro and in vivo research models.
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Affiliation(s)
- Silvia Martin-Almedina
- Molecular and Clinical Sciences Institute, St. George's University of London, London, United Kingdom
| | - Peter S Mortimer
- Molecular and Clinical Sciences Institute, St. George's University of London, London, United Kingdom
- Dermatology and Lymphovascular Medicine, St. George's Universities NHS Foundation Trust, London, United Kingdom
| | - Pia Ostergaard
- Molecular and Clinical Sciences Institute, St. George's University of London, London, United Kingdom
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26
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Geng X, Ho YC, Srinivasan RS. Biochemical and mechanical signals in the lymphatic vasculature. Cell Mol Life Sci 2021; 78:5903-5923. [PMID: 34240226 PMCID: PMC11072415 DOI: 10.1007/s00018-021-03886-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 06/15/2021] [Accepted: 06/18/2021] [Indexed: 12/15/2022]
Abstract
Lymphatic vasculature is an integral part of the cardiovascular system where it maintains interstitial fluid balance. Additionally, lymphatic vasculature regulates lipid assimilation and inflammatory response. Lymphatic vasculature is composed of lymphatic capillaries, collecting lymphatic vessels and valves that function in synergy to absorb and transport fluid against gravitational and pressure gradients. Defects in lymphatic vessels or valves leads to fluid accumulation in tissues (lymphedema), chylous ascites, chylothorax, metabolic disorders and inflammation. The past three decades of research has identified numerous molecules that are necessary for the stepwise development of lymphatic vasculature. However, approaches to treat lymphatic disorders are still limited to massages and compression bandages. Hence, better understanding of the mechanisms that regulate lymphatic vascular development and function is urgently needed to develop efficient therapies. Recent research has linked mechanical signals such as shear stress and matrix stiffness with biochemical pathways that regulate lymphatic vessel growth, patterning and maturation and valve formation. The goal of this review article is to highlight these innovative developments and speculate on unanswered questions.
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Affiliation(s)
- Xin Geng
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73013, USA
| | - Yen-Chun Ho
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73013, USA
| | - R Sathish Srinivasan
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73013, USA.
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73117, USA.
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27
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Abstract
The lymphatic vasculature plays important role in regulating fluid homeostasis, intestinal lipid absorption, and immune surveillance in humans. Malfunction of lymphatic vasculature leads to several human diseases. Understanding the fundamental mechanism in lymphatic vascular development not only expand our knowledge, but also provide a new therapeutic insight. Recently, Hippo-YAP/TAZ signaling pathway, a key mechanism of organ size and tissue homeostasis, has emerged as a critical player that regulate lymphatic specification, sprouting, and maturation. In this review, we discuss the mechanistic regulation and pathophysiological significant of Hippo pathway in lymphatic vascular development.
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Affiliation(s)
- Boksik Cha
- Daegu Gyeongbuk Medical Innovation Foundation, Daegu 41061, Korea
| | - Sungjin Moon
- Department of Biological Science, Kangwon National University, Chuncheon 24341, Korea
| | - Wantae Kim
- Department of Biochemistry, Chungnam National University, Daejeon 34134, Korea
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28
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Chau TCY, Baek S, Coxam B, Skoczylas R, Rondon-Galeano M, Bower NI, Wainwright EN, Stacker SA, Cooper HM, Koopman PA, Lagendijk AK, Harvey NL, François M, Hogan BM. Pkd1 and Wnt5a genetically interact to control lymphatic vascular morphogenesis in mice. Dev Dyn 2021; 251:336-349. [PMID: 34174014 DOI: 10.1002/dvdy.390] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 06/08/2021] [Accepted: 06/17/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Lymphatic vascular development is regulated by well-characterized signaling and transcriptional pathways. These pathways regulate lymphatic endothelial cell (LEC) migration, motility, polarity, and morphogenesis. Canonical and non-canonical WNT signaling pathways are known to control LEC polarity and development of lymphatic vessels and valves. PKD1, encoding Polycystin-1, is the most commonly mutated gene in polycystic kidney disease but has also been shown to be essential in lymphatic vascular morphogenesis. The mechanism by which Pkd1 acts during lymphangiogenesis remains unclear. RESULTS Here we find that loss of non-canonical WNT signaling components Wnt5a and Ryk phenocopy lymphatic defects seen in Pkd1 knockout mice. To investigate genetic interaction, we generated Pkd1;Wnt5a double knockout mice. Loss of Wnt5a suppressed phenotypes seen in the lymphatic vasculature of Pkd1-/- mice and Pkd1 deletion suppressed phenotypes observed in Wnt5a-/- mice. Thus, we report mutually suppressive roles for Pkd1 and Wnt5a, with developing lymphatic networks restored to a more wild type state in double mutant mice. This genetic interaction between Pkd1 and the non-canonical WNT signaling pathway ultimately controls LEC polarity and the morphogenesis of developing vessel networks. CONCLUSION Our work suggests that Pkd1 acts at least in part by regulating non-canonical WNT signaling during the formation of lymphatic vascular networks.
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Affiliation(s)
- Tevin C Y Chau
- Division of Genomics of Development and Disease, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland, Australia
| | - Sungmin Baek
- Division of Genomics of Development and Disease, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland, Australia
| | - Baptiste Coxam
- Division of Genomics of Development and Disease, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland, Australia
| | - Renae Skoczylas
- Division of Genomics of Development and Disease, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland, Australia
| | - Maria Rondon-Galeano
- Division of Genomics of Development and Disease, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland, Australia.,Organogenesis and Cancer Program, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Neil I Bower
- Division of Genomics of Development and Disease, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland, Australia
| | - Elanor N Wainwright
- Division of Genomics of Development and Disease, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland, Australia
| | - Steven A Stacker
- Tumour Angiogenesis and Microenvironment Program, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Department of Surgery, Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia
| | - Helen M Cooper
- The University of Queensland, Queensland Brain Institute, St Lucia, Queensland, Australia
| | - Peter A Koopman
- Division of Genomics of Development and Disease, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland, Australia
| | - Anne K Lagendijk
- Division of Cell and Developmental Biology, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland, Australia
| | - Natasha L Harvey
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, South Australia, Australia
| | - Mathias François
- Division of Genomics of Development and Disease, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland, Australia.,David Richmond Laboratory for Cardiovascular Development; Gene Regulation and Editing Program, Centenary Institute, Sydney, New South Wales, Australia
| | - Benjamin M Hogan
- Division of Genomics of Development and Disease, Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland, Australia.,Organogenesis and Cancer Program, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Victoria, Australia.,Department of Anatomy and Physiology, University of Melbourne, Melbourne, Victoria, Australia
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29
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Exploration of Potential Immunodeficiency Unveils Hennekam Lymphangiectasia-Lymphedema Syndrome. J Clin Immunol 2021; 41:1674-1676. [PMID: 34176065 DOI: 10.1007/s10875-021-01089-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 06/14/2021] [Indexed: 12/19/2022]
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30
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Curtis SW, Chang D, Sun MR, Epstein MP, Murray JC, Feingold E, Beaty TH, Weinberg SM, Marazita ML, Lipinski RJ, Carlson JC, Leslie EJ. FAT4 identified as a potential modifier of orofacial cleft laterality. Genet Epidemiol 2021; 45:721-735. [PMID: 34130359 DOI: 10.1002/gepi.22420] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 05/04/2021] [Accepted: 05/24/2021] [Indexed: 01/02/2023]
Abstract
Orofacial clefts (OFCs) are common (1 in 700 births) congenital malformations that include a cleft lip (CL) and cleft lip and palate (CLP). These OFC subtypes are also heterogeneous themselves, with the CL occurring on the left, right, or both sides of the upper lip. Unilateral CL and CLP have a 2:1 bias towards left-sided clefts, suggesting a nonrandom process. Here, we performed a study of left- and right-sided clefts within the CL and CLP subtypes to better understand the genetic factors controlling cleft laterality. We conducted genome-wide modifier analyses by comparing cases that had right unilateral CL (RCL; N = 130), left unilateral CL (LCL; N = 216), right unilateral CLP (RCLP; N = 416), or left unilateral CLP (LCLP; N = 638), and identified a candidate region on 4q28, 400 kb downstream from FAT4, that approached genome-wide significance for LCL versus RCL (p = 8.4 × 10-8 ). Consistent with its potential involvement as a genetic modifier of CL, we found that Fat4 exhibits a specific domain of expression in the mesenchyme of the medial nasal processes that form the median upper lip. Overall, these results suggest that the epidemiological similarities in left- to right-sided clefts in CL and CLP are not reflected in the genetic association results.
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Affiliation(s)
- Sarah W Curtis
- Department of Human Genetics, Emory University, Atlanta, Georgia, USA
| | - Daniel Chang
- Department of Human Genetics, Emory University, Atlanta, Georgia, USA
| | - Miranda R Sun
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Michael P Epstein
- Department of Human Genetics, Emory University, Atlanta, Georgia, USA
| | - Jeffrey C Murray
- Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA
| | - Eleanor Feingold
- Department of Human Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Biostatistics, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Terri H Beaty
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Seth M Weinberg
- Department of Oral and Craniofacial Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Mary L Marazita
- Department of Human Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Oral and Craniofacial Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Center for Craniofacial and Dental Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Robert J Lipinski
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Jenna C Carlson
- Department of Human Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Biostatistics, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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31
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Predicting the Most Deleterious Missense Nonsynonymous Single-Nucleotide Polymorphisms of Hennekam Syndrome-Causing CCBE1 Gene, In Silico Analysis. ScientificWorldJournal 2021; 2021:6642626. [PMID: 34234628 PMCID: PMC8211529 DOI: 10.1155/2021/6642626] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 05/27/2021] [Indexed: 01/02/2023] Open
Abstract
Hennekam lymphangiectasia-lymphedema syndrome has been linked to single-nucleotide polymorphisms in the CCBE1 (collagen and calcium-binding EGF domains 1) gene. Several bioinformatics methods were used to find the most dangerous nsSNPs that could affect CCBE1 structure and function. Using state-of-the-art in silico tools, this study examined the most pathogenic nonsynonymous single-nucleotide polymorphisms (nsSNPs) that disrupt the CCBE1 protein and extracellular matrix remodeling and migration. Our results indicate that seven nsSNPs, rs115982879, rs149792489, rs374941368, rs121908254, rs149531418, rs121908251, and rs372499913, are deleterious in the CCBE1 gene, four (G330E, C102S, C174R, and G107D) of which are the highly deleterious, two of them (G330E and G107D) have never been seen reported in the context of Hennekam syndrome. Twelve missense SNPs, rs199902030, rs267605221, rs37517418, rs80008675, rs116596858, rs116675104, rs121908252, rs147974432, rs147681552, rs192224843, rs139059968, and rs148498685, are found to revert into stop codons. Structural homology-based methods and sequence homology-based tools revealed that 8.8% of the nsSNPs are pathogenic. SIFT, PolyPhen2, M-CAP, CADD, FATHMM-MKL, DANN, PANTHER, Mutation Taster, LRT, and SNAP2 had a significant score for identifying deleterious nsSNPs. The importance of rs374941368 and rs200149541 in the prediction of post-translation changes was highlighted because it impacts a possible phosphorylation site. Gene-gene interactions revealed CCBE1's association with other genes, showing its role in a number of pathways and coexpressions. The top 16 deleterious nsSNPs found in this research should be investigated further in the future while researching diseases caused CCBE1 gene specifically HS. The FT web server predicted amino acid residues involved in the ligand-binding site of the CCBE1 protein, and two of the substitutions (R167W and T153N) were found to be involved. These highly deleterious nsSNPs can be used as marker pathogenic variants in the mutational diagnosis of the HS syndrome, and this research also offers potential insights that will aid in the development of precision medicines. CCBE1 proteins from Hennekam syndrome patients should be tested in animal models for this purpose.
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32
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Planar cell polarity (PCP) proteins support spermatogenesis through cytoskeletal organization in the testis. Semin Cell Dev Biol 2021; 121:99-113. [PMID: 34059418 DOI: 10.1016/j.semcdb.2021.04.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/31/2021] [Accepted: 04/06/2021] [Indexed: 12/26/2022]
Abstract
Few reports are found in the literature regarding the role of planar cell polarity (PCP) in supporting spermatogenesis in the testis. Yet morphological studies reported decades earlier have illustrated the directional alignment of polarized developing spermatids, most notably step 17-19 spermatids in stage V-early VIII tubules in the testis, across the plane of the epithelium in seminiferous tubules of adult rats. Such morphological features have unequivocally demonstrated the presence of PCP in developing spermatids, analogous to the PCP noted in hair cells of the cochlea in mammals. Emerging evidence in recent years has shown that Sertoli and germ cells express numerous PCP proteins, mostly notably, the core PCP proteins, PCP effectors and PCP signaling proteins. In this review, we discuss recent findings in the field regarding the two core PCP protein complexes, namely the Van Gogh-like 2 (Vangl2)/Prickle (Pk) complex and the Frizzled (Fzd)/Dishevelled (Dvl) complex. These findings have illustrated that these PCP proteins exert their regulatory role to support spermatogenesis through changes in the organization of actin and microtubule (MT) cytoskeletons in Sertoli cells. For instance, these PCP proteins confer PCP to developing spermatids. As such, developing haploid spermatids can be aligned and orderly packed within the limited space of the seminiferous tubules in the testes for the production of sperm via spermatogenesis. Thus, each adult male in the mouse, rat or human can produce an upward of 30, 50 or 300 million spermatozoa on a daily basis, respectively, throughout the adulthood. We also highlight critical areas of research that deserve attention in future studies. We also provide a hypothetical model by which PCP proteins support spermatogenesis based on recent studies in the testis. It is conceivable that the hypothetical model shown here will be updated as more data become available in future years, but this information can serve as the framework by investigators to unravel the role of PCP in spermatogenesis.
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33
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PAOLACCI S, MATTASSI RE, CAVALCA D, MICHELINI S, ZULIAN A, CRISTOFOLI F, MANARA E, MARCEDDU G, BERTELLI M. Genetic testing in vascular and lymphatic malformations. ITALIAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY 2021. [DOI: 10.23736/s1824-4777.21.01487-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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34
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Mechanosensation and Mechanotransduction by Lymphatic Endothelial Cells Act as Important Regulators of Lymphatic Development and Function. Int J Mol Sci 2021; 22:ijms22083955. [PMID: 33921229 PMCID: PMC8070425 DOI: 10.3390/ijms22083955] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 04/02/2021] [Accepted: 04/06/2021] [Indexed: 12/13/2022] Open
Abstract
Our understanding of the function and development of the lymphatic system is expanding rapidly due to the identification of specific molecular markers and the availability of novel genetic approaches. In connection, it has been demonstrated that mechanical forces contribute to the endothelial cell fate commitment and play a critical role in influencing lymphatic endothelial cell shape and alignment by promoting sprouting, development, maturation of the lymphatic network, and coordinating lymphatic valve morphogenesis and the stabilization of lymphatic valves. However, the mechanosignaling and mechanotransduction pathways involved in these processes are poorly understood. Here, we provide an overview of the impact of mechanical forces on lymphatics and summarize the current understanding of the molecular mechanisms involved in the mechanosensation and mechanotransduction by lymphatic endothelial cells. We also discuss how these mechanosensitive pathways affect endothelial cell fate and regulate lymphatic development and function. A better understanding of these mechanisms may provide a deeper insight into the pathophysiology of various diseases associated with impaired lymphatic function, such as lymphedema and may eventually lead to the discovery of novel therapeutic targets for these conditions.
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35
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Mentis AFA, Dardiotis E, Chrousos GP. Apolipoprotein E4 and meningeal lymphatics in Alzheimer disease: a conceptual framework. Mol Psychiatry 2021; 26:1075-1097. [PMID: 32355332 PMCID: PMC7985019 DOI: 10.1038/s41380-020-0731-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 04/01/2020] [Accepted: 04/09/2020] [Indexed: 12/11/2022]
Abstract
The potential existence and roles of the meningeal lymphatic system in normal and pathological brain function have been a long-standing enigma. Recent evidence suggests that meningeal lymphatic vessels are present in both the mouse and human brain; in mice, they seem to play a role in clearing toxic amyloid-beta peptides, which have been connected with Alzheimer disease (AD). Here, we review the evidence linking the meningeal lymphatic system with human AD. Novel findings suggest that the recently described meningeal lymphatic vessels could be linked to, and possibly drain, the efferent paravascular glial lymphatic (glymphatic) system carrying cerebrospinal fluid, after solute and immune cell exchange with brain interstitial fluid. In so doing, the glymphatic system could contribute to the export of toxic solutes and immune cells from the brain (an exported fluid we wish to describe as glymph, similarly to lymph) to the meningeal lymphatic system; the latter, by being connected with downstream anatomic regions, carries the glymph to the conventional cervical lymphatic vessels and nodes. Thus, abnormal function in the meningeal lymphatic system could, in theory, lead to the accumulation, in the brain, of amyloid-beta, cellular debris, and inflammatory mediators, as well as immune cells, resulting in damage of the brain parenchyma and, in turn, cognitive and other neurologic dysfunctions. In addition, we provide novel insights into APOE4-the leading genetic risk factor for AD-and its relation to the meningeal lymphatic system. In this regard, we have reanalyzed previously published RNA-Seq data to show that induced pluripotent stem cells (iPSCs) carrying the APOE4 allele (either as APOE4 knock-in or stemming from APOE4 patients) express lower levels of (a) genes associated with lymphatic markers, and (b) genes for which well-characterized missense mutations have been linked to peripheral lymphedema. Taking into account this evidence, we propose a new conceptual framework, according to which APOE4 could play a novel role in the premature shrinkage of meningeal lymphatic vessels (meningeal lymphosclerosis), leading to abnormal meningeal lymphatic functions (meningeal lymphedema), and, in turn, reduction in the clearance of amyloid-beta and other macromolecules and inflammatory mediators, as well as immune cells, from the brain, exacerbation of AD manifestations, and progression of the disease. Altogether, these findings and their potential interpretations may herald novel diagnostic tools and therapeutic approaches in patients with AD.
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Affiliation(s)
- Alexios-Fotios A Mentis
- Public Health Laboratories, Hellenic Pasteur Institute, Vas. Sofias Avenue 127, 115 21, Athens, Greece.
- Department of Microbiology, University of Thessaly, Panepistimiou 3, Viopolis, 41 500, Larissa, Greece.
| | - Efthimios Dardiotis
- Department of Neurology, University of Thessaly, Panepistimiou 3, Viopolis, 41 500, Larissa, Greece
| | - George P Chrousos
- University Research Institute of Maternal and Child Health and Precision Medicine, National and Kapodistrian University of Athens, Medical School, Aghia Sophia Children's Hospital, Livadias 8, 115 27, Athens, Greece
- UNESCO Chair on Adolescent Health Care, Athens, Greece
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36
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Sanke S, Garg T, Manickavasagam S, Chander R. Hennekam lymphangiectasia syndrome: A rare case of primary lymphedema. Indian J Dermatol Venereol Leprol 2021; 87:240-244. [PMID: 33769747 DOI: 10.25259/ijdvl_287_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 03/01/2020] [Indexed: 11/04/2022]
Affiliation(s)
- Sarita Sanke
- Department of Dermatology and STD, Lady Hardinge Medical College and Associated Hospitals, New Delhi, India
| | - Taru Garg
- Department of Dermatology and STD, Lady Hardinge Medical College and Associated Hospitals, New Delhi, India
| | - Shanthini Manickavasagam
- Department of Dermatology and STD, Lady Hardinge Medical College and Associated Hospitals, New Delhi, India
| | - Ram Chander
- Department of Dermatology and STD, Lady Hardinge Medical College and Associated Hospitals, New Delhi, India
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37
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Betterman KL, Sutton DL, Secker GA, Kazenwadel J, Oszmiana A, Lim L, Miura N, Sorokin L, Hogan BM, Kahn ML, McNeill H, Harvey NL. Atypical cadherin FAT4 orchestrates lymphatic endothelial cell polarity in response to flow. J Clin Invest 2021; 130:3315-3328. [PMID: 32182215 DOI: 10.1172/jci99027] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 03/05/2020] [Indexed: 01/07/2023] Open
Abstract
The atypical cadherin FAT4 has established roles in the regulation of planar cell polarity and Hippo pathway signaling that are cell context dependent. The recent identification of FAT4 mutations in Hennekam syndrome, features of which include lymphedema, lymphangiectasia, and mental retardation, uncovered an important role for FAT4 in the lymphatic vasculature. Hennekam syndrome is also caused by mutations in collagen and calcium binding EGF domains 1 (CCBE1) and ADAM metallopeptidase with thrombospondin type 1 motif 3 (ADAMTS3), encoding a matrix protein and protease, respectively, that regulate activity of the key prolymphangiogenic VEGF-C/VEGFR3 signaling axis by facilitating the proteolytic cleavage and activation of VEGF-C. The fact that FAT4, CCBE1, and ADAMTS3 mutations underlie Hennekam syndrome suggested that all 3 genes might function in a common pathway. We identified FAT4 as a target gene of GATA-binding protein 2 (GATA2), a key transcriptional regulator of lymphatic vascular development and, in particular, lymphatic vessel valve development. Here, we demonstrate that FAT4 functions in a lymphatic endothelial cell-autonomous manner to control cell polarity in response to flow and is required for lymphatic vessel morphogenesis throughout development. Our data reveal a crucial role for FAT4 in lymphangiogenesis and shed light on the mechanistic basis by which FAT4 mutations underlie a human lymphedema syndrome.
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Affiliation(s)
- Kelly L Betterman
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, South Australia, Australia.,SA Pathology, Adelaide, South Australia, Australia
| | - Drew L Sutton
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, South Australia, Australia.,SA Pathology, Adelaide, South Australia, Australia
| | - Genevieve A Secker
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, South Australia, Australia.,SA Pathology, Adelaide, South Australia, Australia
| | - Jan Kazenwadel
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, South Australia, Australia.,SA Pathology, Adelaide, South Australia, Australia
| | - Anna Oszmiana
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, South Australia, Australia.,SA Pathology, Adelaide, South Australia, Australia
| | - Lillian Lim
- Department of Medicine and Cardiovascular Institute, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Naoyuki Miura
- Department of Biochemistry, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Lydia Sorokin
- Institute of Physiological Chemistry and Pathobiochemistry, University of Muenster, Muenster, Germany
| | - Benjamin M Hogan
- Division of Genomics of Development and Disease, Institute for Molecular Bioscience, University of Queensland, Saint Lucia, Queensland, Australia.,Organogenesis and Cancer Program, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Department of Anatomy and Neuroscience, University of Melbourne, Melbourne, Victoria, Australia
| | - Mark L Kahn
- Department of Medicine and Cardiovascular Institute, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Helen McNeill
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada.,Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada.,Department of Developmental Biology, Washington University School of Medicine, Saint Louis, Missouri, USA
| | - Natasha L Harvey
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, South Australia, Australia.,SA Pathology, Adelaide, South Australia, Australia
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38
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González-Loyola A, Petrova TV. Development and aging of the lymphatic vascular system. Adv Drug Deliv Rev 2021; 169:63-78. [PMID: 33316347 DOI: 10.1016/j.addr.2020.12.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/22/2020] [Accepted: 12/07/2020] [Indexed: 12/13/2022]
Abstract
The lymphatic vasculature has a pivotal role in regulating body fluid homeostasis, immune surveillance and dietary fat absorption. The increasing number of in vitro and in vivo studies in the last decades has shed light on the processes of lymphatic vascular development and function. Here, we will discuss the current progress in lymphatic vascular biology such as the mechanisms of lymphangiogenesis, lymphatic vascular maturation and maintenance and the emerging mechanisms of lymphatic vascular aging.
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Affiliation(s)
- Alejandra González-Loyola
- Department of Oncology, Ludwig Institute for Cancer Research Lausanne, University of Lausanne, Switzerland.
| | - Tatiana V Petrova
- Department of Oncology, Ludwig Institute for Cancer Research Lausanne, University of Lausanne, Switzerland.
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39
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Herrera-Pariente C, Capó-García R, Díaz-Gay M, Carballal S, Muñoz J, Llach J, Sánchez A, Bonjoch L, Arnau-Collell C, Soares de Lima Y, Golubicki M, Jung G, Lozano JJ, Castells A, Balaguer F, Bujanda L, Castellví-Bel S, Moreira L. Identification of New Genes Involved in Germline Predisposition to Early-Onset Gastric Cancer. Int J Mol Sci 2021; 22:1310. [PMID: 33525650 PMCID: PMC7866206 DOI: 10.3390/ijms22031310] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/22/2021] [Accepted: 01/26/2021] [Indexed: 12/24/2022] Open
Abstract
The genetic cause for several families with gastric cancer (GC) aggregation is unclear, with marked relevance in early-onset patients. We aimed to identify new candidate genes involved in GC germline predisposition. Whole-exome sequencing (WES) of germline samples was performed in 20 early-onset GC patients without previous germline mutation identified. WES was also performed in nine tumor samples to analyze the somatic profile using SigProfilerExtractor tool. Sequencing germline data were filtered to select those variants with plausible pathogenicity, rare frequency and previously involved in cancer. Then, a manual filtering was performed to prioritize genes according to current knowledge and function. These genetic variants were prevalidated with Integrative Genomics Viewer 2.8.2 (IGV). Subsequently, a further selection step was carried out according to function and information obtained from tumor samples. After IGV and selection step, 58 genetic variants in 52 different candidate genes were validated by Sanger sequencing. Among them, APC, FAT4, CTNND1 and TLR2 seem to be the most promising genes because of their role in hereditary cancer syndromes, tumor suppression, cell adhesion and Helicobacter pylori recognition, respectively. These encouraging results represent the open door to the identification of new genes involved in GC germline predisposition.
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Affiliation(s)
- Cristina Herrera-Pariente
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Gastroenterology Department, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain; (C.H.-P.); (R.C.-G.); (M.D.-G.); (S.C.); (J.M.); (J.L.); (A.S.); (L.B.); (C.A.-C.); (Y.S.d.L.); (G.J.); (A.C.); (F.B.)
| | - Roser Capó-García
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Gastroenterology Department, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain; (C.H.-P.); (R.C.-G.); (M.D.-G.); (S.C.); (J.M.); (J.L.); (A.S.); (L.B.); (C.A.-C.); (Y.S.d.L.); (G.J.); (A.C.); (F.B.)
| | - Marcos Díaz-Gay
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Gastroenterology Department, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain; (C.H.-P.); (R.C.-G.); (M.D.-G.); (S.C.); (J.M.); (J.L.); (A.S.); (L.B.); (C.A.-C.); (Y.S.d.L.); (G.J.); (A.C.); (F.B.)
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Sabela Carballal
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Gastroenterology Department, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain; (C.H.-P.); (R.C.-G.); (M.D.-G.); (S.C.); (J.M.); (J.L.); (A.S.); (L.B.); (C.A.-C.); (Y.S.d.L.); (G.J.); (A.C.); (F.B.)
| | - Jenifer Muñoz
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Gastroenterology Department, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain; (C.H.-P.); (R.C.-G.); (M.D.-G.); (S.C.); (J.M.); (J.L.); (A.S.); (L.B.); (C.A.-C.); (Y.S.d.L.); (G.J.); (A.C.); (F.B.)
| | - Joan Llach
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Gastroenterology Department, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain; (C.H.-P.); (R.C.-G.); (M.D.-G.); (S.C.); (J.M.); (J.L.); (A.S.); (L.B.); (C.A.-C.); (Y.S.d.L.); (G.J.); (A.C.); (F.B.)
| | - Ariadna Sánchez
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Gastroenterology Department, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain; (C.H.-P.); (R.C.-G.); (M.D.-G.); (S.C.); (J.M.); (J.L.); (A.S.); (L.B.); (C.A.-C.); (Y.S.d.L.); (G.J.); (A.C.); (F.B.)
| | - Laia Bonjoch
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Gastroenterology Department, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain; (C.H.-P.); (R.C.-G.); (M.D.-G.); (S.C.); (J.M.); (J.L.); (A.S.); (L.B.); (C.A.-C.); (Y.S.d.L.); (G.J.); (A.C.); (F.B.)
| | - Coral Arnau-Collell
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Gastroenterology Department, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain; (C.H.-P.); (R.C.-G.); (M.D.-G.); (S.C.); (J.M.); (J.L.); (A.S.); (L.B.); (C.A.-C.); (Y.S.d.L.); (G.J.); (A.C.); (F.B.)
| | - Yasmin Soares de Lima
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Gastroenterology Department, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain; (C.H.-P.); (R.C.-G.); (M.D.-G.); (S.C.); (J.M.); (J.L.); (A.S.); (L.B.); (C.A.-C.); (Y.S.d.L.); (G.J.); (A.C.); (F.B.)
| | - Mariano Golubicki
- Oncology Section, Hospital of Gastroenterology “Dr. C. B. Udaondo”, C1264 Buenos Aires, Argentina;
- Molecular Biology Laboratory, Hospital of Gastroenterology “Dr. C. B. Udaondo”, C1264 Buenos Aires, Argentina
| | - Gerhard Jung
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Gastroenterology Department, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain; (C.H.-P.); (R.C.-G.); (M.D.-G.); (S.C.); (J.M.); (J.L.); (A.S.); (L.B.); (C.A.-C.); (Y.S.d.L.); (G.J.); (A.C.); (F.B.)
| | - Juan José Lozano
- Bioinformatics Platform, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), University of Barcelona, 08036 Barcelona, Spain;
| | - Antoni Castells
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Gastroenterology Department, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain; (C.H.-P.); (R.C.-G.); (M.D.-G.); (S.C.); (J.M.); (J.L.); (A.S.); (L.B.); (C.A.-C.); (Y.S.d.L.); (G.J.); (A.C.); (F.B.)
| | - Francesc Balaguer
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Gastroenterology Department, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain; (C.H.-P.); (R.C.-G.); (M.D.-G.); (S.C.); (J.M.); (J.L.); (A.S.); (L.B.); (C.A.-C.); (Y.S.d.L.); (G.J.); (A.C.); (F.B.)
| | - Luis Bujanda
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Gastroenterology Department, Biodonostia Health Research Institute, Basque Country University (UPV/EHU), 20014 San Sebastián, Spain;
| | - Sergi Castellví-Bel
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Gastroenterology Department, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain; (C.H.-P.); (R.C.-G.); (M.D.-G.); (S.C.); (J.M.); (J.L.); (A.S.); (L.B.); (C.A.-C.); (Y.S.d.L.); (G.J.); (A.C.); (F.B.)
| | - Leticia Moreira
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Gastroenterology Department, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain; (C.H.-P.); (R.C.-G.); (M.D.-G.); (S.C.); (J.M.); (J.L.); (A.S.); (L.B.); (C.A.-C.); (Y.S.d.L.); (G.J.); (A.C.); (F.B.)
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40
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Liu Y, Zheng Z, Zhu Q. Case Report: Identification of Polygenic Mutations by Exome Sequencing. Front Pediatr 2021; 9:689901. [PMID: 34746046 PMCID: PMC8567987 DOI: 10.3389/fped.2021.689901] [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: 04/01/2021] [Accepted: 09/09/2021] [Indexed: 11/18/2022] Open
Abstract
The discovery of rare genetic variation through different gene sequencing methods is a very challenging subject in the field of human genetics. A case of a 1-year-old boy with metabolic acidosis and hypokalemia, a small penis, growth retardation, and G-6PD deficiency was reported. Since the clinical symptoms are complex and seem uncorrelated, the authors hypothesized that the child had chromosome or gene problems, and exome sequencing (ES) was applied to samples from him and his parents. Three main locus mutations in three genes were found in the proband, including SLC4A1, FGFR1, and G6PD genes. A missense mutation (c.1766G>T, p.R589 L) was found in exon 14 of SLC4A1 gene, which was a de novo mutation. Another missense mutation (c.1028 A>G, p.H343R) was found in exon 9 of FGFR1 gene, which was also a de novo mutation. These findings further demonstrate the utility of ES in the diagnosis of rare diseases.
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Affiliation(s)
- Yanfeng Liu
- Department of Endocrinology, Quanzhou Women and Children's Hospital, Quanzhou, China
| | - Zhongshi Zheng
- Department of Endocrinology, Quanzhou Women and Children's Hospital, Quanzhou, China
| | - Qingling Zhu
- Department of Children Health Care, Quanzhou Women and Children's Hospital, Quanzhou, China
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41
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Paulson D, Harms R, Ward C, Latterell M, Pazour GJ, Fink DM. Loss of Primary Cilia Protein IFT20 Dysregulates Lymphatic Vessel Patterning in Development and Inflammation. Front Cell Dev Biol 2021; 9:672625. [PMID: 34055805 PMCID: PMC8160126 DOI: 10.3389/fcell.2021.672625] [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: 02/26/2021] [Accepted: 04/15/2021] [Indexed: 12/12/2022] Open
Abstract
Microenvironmental signals produced during development or inflammation stimulate lymphatic endothelial cells to undergo lymphangiogenesis, in which they sprout, proliferate, and migrate to expand the vascular network. Many cell types detect changes in extracellular conditions via primary cilia, microtubule-based cellular protrusions that house specialized membrane receptors and signaling complexes. Primary cilia are critical for receipt of extracellular cues from both ligand-receptor pathways and physical forces such as fluid shear stress. Here, we report the presence of primary cilia on immortalized mouse and primary adult human dermal lymphatic endothelial cells in vitro and on both luminal and abluminal domains of mouse corneal, skin, and mesenteric lymphatic vessels in vivo. The purpose of this study was to determine the effects of disrupting primary cilia on lymphatic vessel patterning during development and inflammation. Intraflagellar transport protein 20 (IFT20) is part of the transport machinery required for ciliary assembly and function. To disrupt primary ciliary signaling, we generated global and lymphatic endothelium-specific IFT20 knockout mouse models and used immunofluorescence microscopy to quantify changes in lymphatic vessel patterning at E16.5 and in adult suture-mediated corneal lymphangiogenesis. Loss of IFT20 during development resulted in edema, increased and more variable lymphatic vessel caliber and branching, as well as red blood cell-filled lymphatics. We used a corneal suture model to determine ciliation status of lymphatic vessels during acute, recurrent, and tumor-associated inflammatory reactions and wound healing. Primary cilia were present on corneal lymphatics during all of the mechanistically distinct lymphatic patterning events of the model and assembled on lymphatic endothelial cells residing at the limbus, stalk, and vessel tip. Lymphatic-specific deletion of IFT20 cell-autonomously exacerbated acute corneal lymphangiogenesis resulting in increased lymphatic vessel density and branching. These data are the first functional studies of primary cilia on lymphatic endothelial cells and reveal a new dimension in regulation of lymphatic vascular biology.
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Affiliation(s)
- Delayna Paulson
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD, United States
- BioSNTR, South Dakota State University, Brookings, SD, United States
| | - Rebecca Harms
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD, United States
- BioSNTR, South Dakota State University, Brookings, SD, United States
| | - Cody Ward
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD, United States
- BioSNTR, South Dakota State University, Brookings, SD, United States
| | - Mackenzie Latterell
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD, United States
- BioSNTR, South Dakota State University, Brookings, SD, United States
| | - Gregory J. Pazour
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, United States
| | - Darci M. Fink
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD, United States
- BioSNTR, South Dakota State University, Brookings, SD, United States
- *Correspondence: Darci M. Fink,
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Abstract
The lymphatic vasculature is a vital component of the vertebrate vascular system that mediates tissue fluid homeostasis, lipid uptake and immune surveillance. The development of the lymphatic vasculature starts in the early vertebrate embryo, when a subset of blood vascular endothelial cells of the cardinal veins acquires lymphatic endothelial cell fate. These cells sprout from the veins, migrate, proliferate and organize to give rise to a highly structured and unique vascular network. Cellular cross-talk, cell-cell communication and the interpretation of signals from surrounding tissues are all essential for coordinating these processes. In this chapter, we highlight new findings and review research progress with a particular focus on LEC migration and guidance, expansion of the LEC lineage, network remodeling and morphogenesis of the lymphatic vasculature.
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43
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Postema FAM, Oosterwijk JC, Hennekam RC. Genetic control of tumor development in malformation syndromes. Am J Med Genet A 2020; 185:324-335. [PMID: 33141500 DOI: 10.1002/ajmg.a.61947] [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: 06/02/2020] [Revised: 10/19/2020] [Accepted: 10/19/2020] [Indexed: 02/01/2023]
Abstract
One of the questions that arises frequently when caring for an individual with a malformation syndrome, is whether some form of tumor surveillance is indicated. In some syndromes there is a highly variable increased risk to develop tumors, while in others this is not the case. The risks can be hard to predict and difficult to explain to affected individuals and their families, and often also to caregivers. The queries arise especially if syndrome causing mutations are also known to occur in tumors. It needs insight in the mechanisms to understand and explain differences of tumor occurrence, and to offer optimal care to individuals with syndromes. Here we provide a short overview of the major mechanisms of the control for tumor occurrences in malformation syndromes.
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Affiliation(s)
- Floor A M Postema
- Department of Pediatrics, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Jan C Oosterwijk
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Raoul C Hennekam
- Department of Pediatrics, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
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van Rijn JM, Werner L, Aydemir Y, Spronck JM, Pode-Shakked B, van Hoesel M, Shimshoni E, Polak-Charcon S, Talmi L, Eren M, Weiss B, H.J. Houwen R, Barshack I, Somech R, Nieuwenhuis EE, Sagi I, Raas-Rothschild A, Middendorp S, Shouval DS. Enhanced Collagen Deposition in the Duodenum of Patients with Hyaline Fibromatosis Syndrome and Protein Losing Enteropathy. Int J Mol Sci 2020; 21:E8200. [PMID: 33147779 PMCID: PMC7662532 DOI: 10.3390/ijms21218200] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 10/28/2020] [Accepted: 10/29/2020] [Indexed: 12/25/2022] Open
Abstract
Hyaline fibromatosis syndrome (HFS), resulting from ANTXR2 mutations, is an ultra-rare disease that causes intestinal lymphangiectasia and protein-losing enteropathy (PLE). The mechanisms leading to the gastrointestinal phenotype in these patients are not well defined. We present two patients with congenital diarrhea, severe PLE and unique clinical features resulting from deleterious ANTXR2 mutations. Intestinal organoids were generated from one of the patients, along with CRISPR-Cas9 ANTXR2 knockout, and compared with organoids from two healthy controls. The ANTXR2-deficient organoids displayed normal growth and polarity, compared to controls. Using an anthrax-toxin assay we showed that the c.155C>T mutation causes loss-of-function of ANTXR2 protein. An intrinsic defect of monolayer formation in patient-derived or ANTXR2KO organoids was not apparent, suggesting normal epithelial function. However, electron microscopy and second harmonic generation imaging showed abnormal collagen deposition in duodenal samples of these patients. Specifically, collagen VI, which is known to bind ANTXR2, was highly expressed in the duodenum of these patients. In conclusion, despite resistance to anthrax-toxin, epithelial cell function, and specifically monolayer formation, is intact in patients with HFS. Nevertheless, loss of ANTXR2-mediated signaling leads to collagen VI accumulation in the duodenum and abnormal extracellular matrix composition, which likely plays a role in development of PLE.
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Affiliation(s)
- Jorik M. van Rijn
- Division of Pediatrics, Department of Pediatric Gastroenterology, Wilhelmina Children’s Hospital, University Medical Center Utrecht (UMCU), Utrecht University (UU), 3584 CT Utrecht, The Netherlands; (J.M.v.R.); (J.M.A.S.); (M.v.H.); (R.H.J.H.); (E.E.S.N.)
- Regenerative Medicine Center, UMCU, UU, 3584 CT Utrecht, The Netherlands
| | - Lael Werner
- Pediatric Gastroenterology Unit, Edmond and Lily Safra Children’s Hospital, Sheba Medical Center, Ramat Gan 5262100, Israel; (L.W.); (B.W.)
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel; (B.P.-S.); (S.P.-C.); (L.T.); (I.B.); (R.S.); (A.R.-R.)
| | - Yusuf Aydemir
- Department of Pediatrics, Division of Pediatric Gastroenterology and Hepatology, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir 26040, Turkey; (Y.A.); (M.E.)
| | - Joey M.A. Spronck
- Division of Pediatrics, Department of Pediatric Gastroenterology, Wilhelmina Children’s Hospital, University Medical Center Utrecht (UMCU), Utrecht University (UU), 3584 CT Utrecht, The Netherlands; (J.M.v.R.); (J.M.A.S.); (M.v.H.); (R.H.J.H.); (E.E.S.N.)
- Regenerative Medicine Center, UMCU, UU, 3584 CT Utrecht, The Netherlands
| | - Ben Pode-Shakked
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel; (B.P.-S.); (S.P.-C.); (L.T.); (I.B.); (R.S.); (A.R.-R.)
- The Institute for Rare Diseases, Edmond and Lily Safra Children’s Hospital, Sheba Medical Center, Ramat Gan 5262100, Israel
- Talpiot Medical Leadership Program, Sheba Medical Center, Ramat Gan 5262100, Israel
| | - Marliek van Hoesel
- Division of Pediatrics, Department of Pediatric Gastroenterology, Wilhelmina Children’s Hospital, University Medical Center Utrecht (UMCU), Utrecht University (UU), 3584 CT Utrecht, The Netherlands; (J.M.v.R.); (J.M.A.S.); (M.v.H.); (R.H.J.H.); (E.E.S.N.)
- Regenerative Medicine Center, UMCU, UU, 3584 CT Utrecht, The Netherlands
| | - Elee Shimshoni
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot 7610001, Israel; (E.S.); (I.S.)
| | - Sylvie Polak-Charcon
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel; (B.P.-S.); (S.P.-C.); (L.T.); (I.B.); (R.S.); (A.R.-R.)
- Institute of Pathology, Sheba Medical Center, Ramat Gan 5262100, Israel
| | - Liron Talmi
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel; (B.P.-S.); (S.P.-C.); (L.T.); (I.B.); (R.S.); (A.R.-R.)
- Pediatric Department A, Edmond and Lily Safra Children’s Hospital, Sheba Medical Center, Ramat Gan 5262100, Israel
| | - Makbule Eren
- Department of Pediatrics, Division of Pediatric Gastroenterology and Hepatology, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir 26040, Turkey; (Y.A.); (M.E.)
| | - Batia Weiss
- Pediatric Gastroenterology Unit, Edmond and Lily Safra Children’s Hospital, Sheba Medical Center, Ramat Gan 5262100, Israel; (L.W.); (B.W.)
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel; (B.P.-S.); (S.P.-C.); (L.T.); (I.B.); (R.S.); (A.R.-R.)
| | - Roderick H.J. Houwen
- Division of Pediatrics, Department of Pediatric Gastroenterology, Wilhelmina Children’s Hospital, University Medical Center Utrecht (UMCU), Utrecht University (UU), 3584 CT Utrecht, The Netherlands; (J.M.v.R.); (J.M.A.S.); (M.v.H.); (R.H.J.H.); (E.E.S.N.)
| | - Iris Barshack
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel; (B.P.-S.); (S.P.-C.); (L.T.); (I.B.); (R.S.); (A.R.-R.)
- Institute of Pathology, Sheba Medical Center, Ramat Gan 5262100, Israel
| | - Raz Somech
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel; (B.P.-S.); (S.P.-C.); (L.T.); (I.B.); (R.S.); (A.R.-R.)
- Pediatric Department A, Edmond and Lily Safra Children’s Hospital, Sheba Medical Center, Ramat Gan 5262100, Israel
- Immunology Service, Edmond and Lily Safra Children’s Hospital, Sheba Medical Center, Ramat Gan 5262100, Israel
- Jeffrey Modell Foundation Center, Edmond and Lily Safra Children’s Hospital, Sheba Medical Center, Ramat Gan 5262100, Israel
| | - Edward E.S. Nieuwenhuis
- Division of Pediatrics, Department of Pediatric Gastroenterology, Wilhelmina Children’s Hospital, University Medical Center Utrecht (UMCU), Utrecht University (UU), 3584 CT Utrecht, The Netherlands; (J.M.v.R.); (J.M.A.S.); (M.v.H.); (R.H.J.H.); (E.E.S.N.)
| | - Irit Sagi
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot 7610001, Israel; (E.S.); (I.S.)
| | - Annick Raas-Rothschild
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel; (B.P.-S.); (S.P.-C.); (L.T.); (I.B.); (R.S.); (A.R.-R.)
- The Institute for Rare Diseases, Edmond and Lily Safra Children’s Hospital, Sheba Medical Center, Ramat Gan 5262100, Israel
| | - Sabine Middendorp
- Division of Pediatrics, Department of Pediatric Gastroenterology, Wilhelmina Children’s Hospital, University Medical Center Utrecht (UMCU), Utrecht University (UU), 3584 CT Utrecht, The Netherlands; (J.M.v.R.); (J.M.A.S.); (M.v.H.); (R.H.J.H.); (E.E.S.N.)
- Regenerative Medicine Center, UMCU, UU, 3584 CT Utrecht, The Netherlands
| | - Dror S. Shouval
- Pediatric Gastroenterology Unit, Edmond and Lily Safra Children’s Hospital, Sheba Medical Center, Ramat Gan 5262100, Israel; (L.W.); (B.W.)
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel; (B.P.-S.); (S.P.-C.); (L.T.); (I.B.); (R.S.); (A.R.-R.)
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Lodge EJ, Xekouki P, Silva TS, Kochi C, Longui CA, Faucz FR, Santambrogio A, Mills JL, Pankratz N, Lane J, Sosnowska D, Hodgson T, Patist AL, Francis-West P, Helmbacher F, Stratakis CA, Andoniadou CL. Requirement of FAT and DCHS protocadherins during hypothalamic-pituitary development. JCI Insight 2020; 5. [PMID: 33108146 PMCID: PMC7714405 DOI: 10.1172/jci.insight.134310] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Pituitary developmental defects lead to partial or complete hormone deficiency and significant health problems. The majority of cases are sporadic and of unknown cause. We screened 28 patients with pituitary stalk interruption syndrome (PSIS) for mutations in the FAT/DCHS family of protocadherins that have high functional redundancy. We identified seven variants, four of which putatively damaging, in FAT2 and DCHS2 in six patients with pituitary developmental defects recruited through a cohort of patients with mostly ectopic posterior pituitary gland and/or pituitary stalk interruption. All patients had growth hormone deficiency and two presented with multiple hormone deficiencies and small glands. FAT2 and DCHS2 were strongly expressed in the mesenchyme surrounding the normal developing human pituitary. We analyzed Dchs2-/- mouse mutants and identified anterior pituitary hypoplasia and partially penetrant infundibular defects. Overlapping infundibular abnormalities and distinct anterior pituitary morphogenesis defects were observed in Fat4-/- and Dchs1-/- mouse mutants but all animal models displayed normal commitment to the anterior pituitary cell type. Together our data implicate FAT/DCHS protocadherins in normal hypothalamic-pituitary development and identify FAT2 and DCHS2 as candidates underlying pituitary gland developmental defects such as ectopic pituitary gland and/or pituitary stalk interruption.
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Affiliation(s)
- Emily J. Lodge
- Centre for Craniofacial & Regenerative Biology, King’s College London, Guy’s Campus, London, United Kingdom
| | - Paraskevi Xekouki
- Centre for Craniofacial & Regenerative Biology, King’s College London, Guy’s Campus, London, United Kingdom
| | - Tatiane S. Silva
- Pediatric Endocrinology Unit, Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, Brazil
| | - Cristiane Kochi
- Pediatric Endocrinology Unit, Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, Brazil
| | - Carlos A. Longui
- Pediatric Endocrinology Unit, Irmandade da Santa Casa de Misericórdia de São Paulo, São Paulo, Brazil
| | - Fabio R. Faucz
- Section on Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health (NIH), Bethesda, Maryland, USA
| | - Alice Santambrogio
- Centre for Craniofacial & Regenerative Biology, King’s College London, Guy’s Campus, London, United Kingdom
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - James L. Mills
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, Maryland, USA
| | - Nathan Pankratz
- Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, Minnesota, USA
| | - John Lane
- Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, Minnesota, USA
| | - Dominika Sosnowska
- Centre for Craniofacial & Regenerative Biology, King’s College London, Guy’s Campus, London, United Kingdom
| | - Tina Hodgson
- Centre for Craniofacial & Regenerative Biology, King’s College London, Guy’s Campus, London, United Kingdom
| | - Amanda L. Patist
- Centre for Craniofacial & Regenerative Biology, King’s College London, Guy’s Campus, London, United Kingdom
| | - Philippa Francis-West
- Centre for Craniofacial & Regenerative Biology, King’s College London, Guy’s Campus, London, United Kingdom
| | | | - Constantine A. Stratakis
- Section on Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health (NIH), Bethesda, Maryland, USA
| | - Cynthia L. Andoniadou
- Centre for Craniofacial & Regenerative Biology, King’s College London, Guy’s Campus, London, United Kingdom
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
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Abstract
Vascular anomalies are developmental defects of the vasculature and encompass a variety of disorders. The identification of genes mutated in the different malformations provides insight into the etiopathogenic mechanisms and the specific roles the associated proteins play in vascular development and maintenance. A few familial forms of vascular anomalies exist, but most cases occur sporadically. It is becoming evident that somatic mosaicism plays a major role in the formation of vascular lesions. The use of Next Generating Sequencing for high throughput and "deep" screening of both blood and lesional DNA and RNA has been instrumental in detecting such low frequency somatic changes. The number of novel causative mutations identified for many vascular anomalies has soared within a 10-year period. The discovery of such genes aided in unraveling a holistic overview of the pathogenic mechanisms, by which in vitro and in vivo models could be generated, and opening the doors to development of more effective treatments that do not address just symptoms. Moreover, as many mutations and the implicated signaling pathways are shared with cancers, current oncological therapies could potentially be repurposed for the treatment of vascular anomalies.
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Affiliation(s)
- Ha-Long Nguyen
- Human Molecular Genetics, de Duve Institute, University of Louvain, Brussels, Belgium
| | - Laurence M Boon
- Human Molecular Genetics, de Duve Institute, University of Louvain, Brussels, Belgium; Center for Vascular Anomalies, Division of Plastic Surgery, VASCERN VASCA European Reference Centre, Saint Luc University Hospital, Brussels, Belgium
| | - Miikka Vikkula
- Human Molecular Genetics, de Duve Institute, University of Louvain, Brussels, Belgium; Center for Vascular Anomalies, Division of Plastic Surgery, VASCERN VASCA European Reference Centre, Saint Luc University Hospital, Brussels, Belgium; WELBIO (Walloon Excellence in Lifesciences and Biotechnology), de Duve Institute, University of Louvain, Brussels, Belgium.
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47
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Lymphatic Valves and Lymph Flow in Cancer-Related Lymphedema. Cancers (Basel) 2020; 12:cancers12082297. [PMID: 32824219 PMCID: PMC7464955 DOI: 10.3390/cancers12082297] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/12/2020] [Accepted: 08/12/2020] [Indexed: 12/12/2022] Open
Abstract
Lymphedema is a complex disease caused by the accumulation of fluid in the tissues resulting from a dysfunctional or damaged lymphatic vasculature. In developed countries, lymphedema most commonly occurs as a result of cancer treatment. Initially, impaired lymph flow causes edema, but over time this results in inflammation, fibrotic and fatty tissue deposition, limited mobility, and bacterial infections that can lead to sepsis. While chronically impaired lymph flow is generally believed to be the instigating factor, little is known about what pathophysiological changes occur in the lymphatic vessels to inhibit lymph flow. Lymphatic vessels not only regulate lymph flow through a variety of physiologic mechanisms, but also respond to lymph flow itself. One of the fascinating ways that lymphatic vessels respond to flow is by growing bicuspid valves that close to prevent the backward movement of lymph. However, lymphatic valves have not been investigated in cancer-related lymphedema patients, even though the mutations that cause congenital lymphedema regulate genes involved in valve development. Here, we review current knowledge of the regulation of lymphatic function and development by lymph flow, including newly identified genetic regulators of lymphatic valves, and provide evidence for lymphatic valve involvement in cancer-related lymphedema.
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48
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Oliver G, Kipnis J, Randolph GJ, Harvey NL. The Lymphatic Vasculature in the 21 st Century: Novel Functional Roles in Homeostasis and Disease. Cell 2020; 182:270-296. [PMID: 32707093 PMCID: PMC7392116 DOI: 10.1016/j.cell.2020.06.039] [Citation(s) in RCA: 312] [Impact Index Per Article: 78.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/17/2020] [Accepted: 06/25/2020] [Indexed: 12/19/2022]
Abstract
Mammals have two specialized vascular circulatory systems: the blood vasculature and the lymphatic vasculature. The lymphatic vasculature is a unidirectional conduit that returns filtered interstitial arterial fluid and tissue metabolites to the blood circulation. It also plays major roles in immune cell trafficking and lipid absorption. As we discuss in this review, the molecular characterization of lymphatic vascular development and our understanding of this vasculature's role in pathophysiological conditions has greatly improved in recent years, changing conventional views about the roles of the lymphatic vasculature in health and disease. Morphological or functional defects in the lymphatic vasculature have now been uncovered in several pathological conditions. We propose that subtle asymptomatic alterations in lymphatic vascular function could underlie the variability seen in the body's response to a wide range of human diseases.
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Affiliation(s)
- Guillermo Oliver
- Center for Vascular and Developmental Biology, Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
| | - Jonathan Kipnis
- Center for Brain Immunology and Glia (BIG), University of Virginia, Charlottesville, VA 22908, USA; Department of Neuroscience, University of Virginia, Charlottesville, VA 22908, USA
| | - Gwendalyn J Randolph
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Natasha L Harvey
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA, Australia
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Bamborschke D, Daimagüler HS, Hahn A, Hussain MS, Nürnberg P, Cirak S. Mutation in CEP135 causing primary microcephaly and subcortical heterotopia. Am J Med Genet A 2020; 182:2450-2453. [PMID: 32643282 DOI: 10.1002/ajmg.a.61762] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 06/12/2020] [Accepted: 06/13/2020] [Indexed: 01/19/2023]
Affiliation(s)
- Daniel Bamborschke
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.,Department of Pediatrics, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Hülya-Sevcan Daimagüler
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.,Department of Pediatrics, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Andreas Hahn
- Department of Child Neurology, Justus-Liebig-University Giessen, Giessen, Germany
| | - Muhammad S Hussain
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.,Cologne Center for Genomics (CCG), University of Cologne, Cologne, Germany.,Institute of Biochemistry I, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Peter Nürnberg
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.,Cologne Center for Genomics (CCG), University of Cologne, Cologne, Germany
| | - Sebahattin Cirak
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.,Department of Pediatrics, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
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50
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Aukema SM, Ten Brinke GA, Timens W, Vos YJ, Accord RE, Kraft KE, Santing MJ, Morssink LP, Streefland E, van Diemen CC, Vrijlandt EJ, Hulzebos CV, Kerstjens-Frederikse WS. A homozygous variant in growth and differentiation factor 2 (GDF2) may cause lymphatic dysplasia with hydrothorax and nonimmune hydrops fetalis. Am J Med Genet A 2020; 182:2152-2160. [PMID: 32618121 DOI: 10.1002/ajmg.a.61743] [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: 02/16/2020] [Revised: 05/08/2020] [Accepted: 05/30/2020] [Indexed: 02/07/2023]
Abstract
The etiology of nonimmune hydrops fetalis is extensive and includes genetic disorders. We describe a term-born female neonate with late onset extensive nonimmune hydrops, that is, polyhydramnios, edema, and congenital bilateral chylothorax. This newborn was successfully treated with repetitive thoracocentesis, total parenteral feeding, octreotide intravenously and finally surgical pleurodesis and corticosteroids. A genetic cause seemed plausible as the maternal history revealed a fatal nonimmune hydrops fetalis. A homozygous truncating variant in GDF2 (c.451C>T, p.(Arg151*)) was detected with exome sequencing. Genetic analysis of tissue obtained from the deceased fetal sibling revealed the same homozygous variant. The parents and two healthy siblings were heterozygous for the GDF2 variant. Skin and lung biopsies in the index patient, as well as the revised lung biopsy of the deceased fetal sibling, showed lymphatic dysplasia and lymphangiectasia. To the best of our knowledge, this is the first report of an association between a homozygous variant in GDF2 with lymphatic dysplasia, hydrothorax and nonimmune hydrops fetalis.
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Affiliation(s)
- Sietse M Aukema
- Department of Clinical Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Gerdien A Ten Brinke
- Beatrix Children's Hospital, University Medical Center Groningen, Groningen, The Netherlands
| | - Wim Timens
- Department of Pathology and Medical Biology, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - Yvonne J Vos
- Department of Clinical Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Ryan E Accord
- Department of Congenital Cardiothoracic Surgery, University of Groningen, University Medical Center Groningen, Beatrix Children's Hospital, Center for Congenital Heart Diseases, Groningen, The Netherlands
| | - Karianne E Kraft
- Beatrix Children's Hospital, University Medical Center Groningen, Groningen, The Netherlands
| | - Michiel J Santing
- Department of Radiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Leonard P Morssink
- Department of Obstetrics and Gynaecology, Medical Center Leeuwarden, Leeuwarden, The Netherlands
| | - Esther Streefland
- Department of Obstetrics and Gynecology/Prenatal diagnosis, University Medical Centre of Groningen, University of Groningen, Groningen, The Netherlands
| | - Cleo C van Diemen
- Department of Clinical Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Elianne Jle Vrijlandt
- Department of Pediatric Pulmonology and Pediatric Allergy, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Christian V Hulzebos
- Beatrix Children's Hospital, University Medical Center Groningen, Groningen, The Netherlands
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