1
|
Cardoso BA, Duque M, Gírio A, Fragoso R, Oliveira ML, Allen JR, Martins LR, Correia NC, Silveira AB, Veloso A, Kimura S, Demoen L, Matthijssens F, Jeha S, Cheng C, Pui CH, Grosso AR, Neto JL, De Almeida SF, Van Vlieberghe P, Mullighan CG, Yunes JA, Langenau DM, Pflumio F, Barata JT. CASZ1 upregulates PI3K-AKT-mTOR signaling and promotes T-cell acute lymphoblastic leukemia. Haematologica 2024; 109:1713-1725. [PMID: 38058200 PMCID: PMC11141679 DOI: 10.3324/haematol.2023.282854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 11/27/2023] [Indexed: 12/08/2023] Open
Abstract
CASZ1 is a conserved transcription factor involved in neural development, blood vessel assembly and heart morphogenesis. CASZ1 has been implicated in cancer, either suppressing or promoting tumor development depending on the tissue. However, the impact of CASZ1 on hematological tumors remains unknown. Here, we show that the T-cell oncogenic transcription factor TAL1 is a direct positive regulator of CASZ1, that T-cell acute lymphoblastic leukemia (T-ALL) samples at diagnosis overexpress CASZ1b isoform, and that CASZ1b expression in patient samples correlates with PI3K-AKT-mTOR signaling pathway activation. In agreement, overexpression of CASZ1b in both Ba/F3 and T-ALL cells leads to the activation of PI3K signaling pathway, which is required for CASZ1b-mediated transformation of Ba/F3 cells in vitro and malignant expansion in vivo. We further demonstrate that CASZ1b cooperates with activated NOTCH1 to promote T-ALL development in zebrafish, and that CASZ1b protects human T-ALL cells from serum deprivation and treatment with chemotherapeutic drugs. Taken together, our studies indicate that CASZ1b is a TAL1-regulated gene that promotes T-ALL development and resistance to chemotherapy.
Collapse
Affiliation(s)
- Bruno A Cardoso
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon
| | - Mafalda Duque
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon
| | - Ana Gírio
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon
| | - Rita Fragoso
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon
| | - Mariana L Oliveira
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon
| | - James R Allen
- MGH Pathology and Harvard Medical School, Charlestown MA 02129
| | - Leila R Martins
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon
| | - Nádia C Correia
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon
| | | | | | - Shunsuke Kimura
- Department of Pathology, Center of Excellence for Leukemia Studies, and Hematological Malignancies Program, St. Jude Children's Research Hospital, Memphis TN
| | - Lisa Demoen
- Department of Biomolecular Medicine, Ghent University, and Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Filip Matthijssens
- Department of Biomolecular Medicine, Ghent University, and Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Sima Jeha
- Department of Oncology, St. Jude Children's Research Hospital and the University of Tennessee Health Science Center, Memphis TN, US; Department of Global Pediatric Medicine, St. Jude Children's Research Hospital and the University of Tennessee Health Science Center, Memphis TN
| | - Cheng Cheng
- Department of Biostatistics, St. Jude Children's Research Hospital and the University of Tennessee Health Science Center, Memphis TN
| | - Ching-Hon Pui
- Department of Oncology, St. Jude Children's Research Hospital and the University of Tennessee Health Science Center, Memphis TN, US; Department of Global Pediatric Medicine, St. Jude Children's Research Hospital and the University of Tennessee Health Science Center, Memphis TN, US; Department of Pathology, St. Jude Children's Research Hospital and the University of Tennessee Health Science Center, Memphis TN
| | - Ana R Grosso
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal; UCIBIO - Applied Molecular Biosciences Unit, Department of Life Sciences, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica
| | - João L Neto
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon
| | - Sérgio F De Almeida
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon
| | - Pieter Van Vlieberghe
- Department of Biomolecular Medicine, Ghent University, and Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Charles G Mullighan
- Department of Pathology, Center of Excellence for Leukemia Studies, and Hematological Malignancies Program, St. Jude Children's Research Hospital, Memphis TN
| | - J Andres Yunes
- Laboratório de Biologia Molecular, Centro Infantil Boldrini, Campinas, SP
| | | | - Françoise Pflumio
- Université Paris-Saclay, INSERM, iRCM/IBFJ CEA, UMR Stabilité Génétique Cellules Souches et Radiations, F-92265, Fontenay-aux-Roses, France; OPALE Carnot Institute, The Organization for Partnerships in Leukemia, Saint-Louis Hospital, 75010 Paris
| | - João T Barata
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon.
| |
Collapse
|
2
|
Liu T, Li T, Ke S. Role of the CASZ1 transcription factor in tissue development and disease. Eur J Med Res 2023; 28:562. [PMID: 38053207 DOI: 10.1186/s40001-023-01548-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 11/22/2023] [Indexed: 12/07/2023] Open
Abstract
The zinc finger transcription factor gene, CASZ1/Castor (Castor zinc finger 1), initially identified in Drosophila, plays a critical role in neural, cardiac, and cardiovascular development, exerting a complex, multifaceted influence on cell fate and tissue morphogenesis. During neurogenesis, CASZ1 exhibits dynamic expression from early embryonic development to the perinatal period, constituting a key regulator in this process. Additionally, CASZ1 controls the transition between neurogenesis and gliomagenesis. During human cardiovascular system development, CASZ1 is essential for cardiomyocyte differentiation, cardiac morphogenesis, and vascular morphology homeostasis and formation. The deletion or inactivation of CASZ1 mutations can lead to human developmental diseases or tumors, including congenital heart disease, cardiovascular disease, and neuroblastoma. CASZ1 can be used as a biomarker for disease prevention and diagnosis as well as a prognostic indicator for cancer. This review explores the unique functions of CASZ1 in tissue morphogenesis and associated diseases, offering new insights for elucidating the molecular mechanisms underlying diseases and identifying potential therapeutic targets for disease prevention and treatment.
Collapse
Affiliation(s)
- Tiantian Liu
- Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou, 450046, Henan, China.
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, 450046, Henan, China.
| | - Tao Li
- College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Shaorui Ke
- Henan Key Laboratory of Chinese Medicine for Respiratory Disease, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengzhou, 450046, Henan, China
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, 450046, Henan, China
| |
Collapse
|
3
|
Jian H, Poetsch A. CASZ1: Current Implications in Cardiovascular Diseases and Cancers. Biomedicines 2023; 11:2079. [PMID: 37509718 PMCID: PMC10377389 DOI: 10.3390/biomedicines11072079] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/09/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
Castor zinc finger 1 (CASZ1) is a C2H2 zinc finger family protein that has two splicing variants, CASZ1a and CASZ1b. It is involved in multiple physiological processes, such as tissue differentiation and aldosterone antagonism. Genetic and epigenetic alternations of CASZ1 have been characterized in multiple cardiovascular disorders, such as congenital heart diseases, chronic venous diseases, and hypertension. However, little is known about how CASZ1 mechanically participates in the pathogenesis of these diseases. Over the past decades, at first glance, paradoxical influences on cell behaviors and progressions of different cancer types have been discovered for CASZ1, which may be explained by a "double-agent" role for CASZ1. In this review, we discuss the physiological function of CASZ1, and focus on the association of CASZ1 aberrations with the pathogenesis of cardiovascular diseases and cancers.
Collapse
Affiliation(s)
- Heng Jian
- Queen Mary School, Nanchang University, Nanchang 330006, China
| | - Ansgar Poetsch
- Queen Mary School, Nanchang University, Nanchang 330006, China
- School of Basic Medical Sciences, Nanchang University, Nanchang 330006, China
| |
Collapse
|
4
|
Tirincsi A, Sicking M, Hadzibeganovic D, Haßdenteufel S, Lang S. The Molecular Biodiversity of Protein Targeting and Protein Transport Related to the Endoplasmic Reticulum. Int J Mol Sci 2021; 23:143. [PMID: 35008565 PMCID: PMC8745461 DOI: 10.3390/ijms23010143] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/19/2021] [Accepted: 12/20/2021] [Indexed: 12/15/2022] Open
Abstract
Looking at the variety of the thousands of different polypeptides that have been focused on in the research on the endoplasmic reticulum from the last five decades taught us one humble lesson: no one size fits all. Cells use an impressive array of components to enable the safe transport of protein cargo from the cytosolic ribosomes to the endoplasmic reticulum. Safety during the transit is warranted by the interplay of cytosolic chaperones, membrane receptors, and protein translocases that together form functional networks and serve as protein targeting and translocation routes. While two targeting routes to the endoplasmic reticulum, SRP (signal recognition particle) and GET (guided entry of tail-anchored proteins), prefer targeting determinants at the N- and C-terminus of the cargo polypeptide, respectively, the recently discovered SND (SRP-independent) route seems to preferentially cater for cargos with non-generic targeting signals that are less hydrophobic or more distant from the termini. With an emphasis on targeting routes and protein translocases, we will discuss those functional networks that drive efficient protein topogenesis and shed light on their redundant and dynamic nature in health and disease.
Collapse
Affiliation(s)
- Andrea Tirincsi
- Department of Medical Biochemistry and Molecular Biology, Saarland University, 66421 Homburg, Germany; (A.T.); (M.S.); (D.H.)
| | - Mark Sicking
- Department of Medical Biochemistry and Molecular Biology, Saarland University, 66421 Homburg, Germany; (A.T.); (M.S.); (D.H.)
| | - Drazena Hadzibeganovic
- Department of Medical Biochemistry and Molecular Biology, Saarland University, 66421 Homburg, Germany; (A.T.); (M.S.); (D.H.)
| | - Sarah Haßdenteufel
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Sven Lang
- Department of Medical Biochemistry and Molecular Biology, Saarland University, 66421 Homburg, Germany; (A.T.); (M.S.); (D.H.)
| |
Collapse
|
5
|
Abstract
Congenital birth defects result from an abnormal development of an embryo and have detrimental effects on children's health. Specifically, congenital heart malformations are a leading cause of death among pediatric patients and often require surgical interventions within the first year of life. Increased efforts to navigate the human genome provide an opportunity to discover multiple candidate genes in patients suffering from birth defects. These efforts, however, fail to provide an explanation regarding the mechanisms of disease pathogenesis and emphasize the need for an efficient platform to screen candidate genes. Xenopus is a rapid, cost effective, high-throughput vertebrate organism to model the mechanisms behind human disease. This review provides numerous examples describing the successful use of Xenopus to investigate the contribution of patient mutations to complex phenotypes including congenital heart disease and heterotaxy. Moreover, we describe a variety of unique methods that allow us to rapidly recapitulate patients' phenotypes in frogs: gene knockout and knockdown strategies, the use of fate maps for targeted manipulations, and novel imaging modalities. The combination of patient genomics data and the functional studies in Xenopus will provide necessary answers to the patients suffering from birth defects. Furthermore, it will allow for the development of better diagnostic methods to ensure early detection and intervention. Finally, with better understanding of disease pathogenesis, new treatment methods can be tailored specifically to address patient's phenotype and genotype.
Collapse
Affiliation(s)
- Valentyna Kostiuk
- Pediatric Genomics Discovery Program, Department of Pediatrics and Genetics, Yale University School of Medicine, New Haven, CT, United States
| | - Mustafa K Khokha
- Pediatric Genomics Discovery Program, Department of Pediatrics and Genetics, Yale University School of Medicine, New Haven, CT, United States.
| |
Collapse
|
6
|
Abstract
Due to their topology tail-anchored (TA) proteins must target to the membrane independently of the co-translational route defined by the signal sequence recognition particle (SRP), its receptor and the translocon Sec61. More than a decade of work has extensively characterized a highly conserved pathway, the yeast GET or mammalian TRC40 pathway, which is capable of countering the biogenetic challenge posed by the C-terminal TA anchor. In this review we briefly summarize current models of this targeting route and focus on emerging aspects such as the intricate interplay with the proteostatic network of cells and with other targeting pathways. Importantly, we consider the lessons provided by the in vivo analysis of the pathway in different model organisms and by the consideration of its full client spectrum in more recent studies. This analysis of the state of the field highlights directions in which the current models may be experimentally probed and conceptually extended.
Collapse
Affiliation(s)
- Nica Borgese
- Institute of Neuroscience and BIOMETRA Department, Consiglio Nazionale delle Ricerche and Università degli Studi di Milano, via Vanvitelli 32, 20129, Milan, Italy.
| | - Javier Coy-Vergara
- Department of Molecular Biology, University of Göttingen Medical Centre, Humboldtallee 23, 37073, Göttingen, Germany
| | - Sara Francesca Colombo
- Institute of Neuroscience and BIOMETRA Department, Consiglio Nazionale delle Ricerche and Università degli Studi di Milano, via Vanvitelli 32, 20129, Milan, Italy
| | - Blanche Schwappach
- Department of Molecular Biology, University of Göttingen Medical Centre, Humboldtallee 23, 37073, Göttingen, Germany.
| |
Collapse
|
7
|
Lim JH, Kang YJ, Lee BY, Han YJ, Chung JH, Kim MY, Kim MH, Kim JW, Cho YH, Ryu HM. Epigenome-wide base-resolution profiling of DNA methylation in chorionic villi of fetuses with Down syndrome by methyl-capture sequencing. Clin Epigenetics 2019; 11:180. [PMID: 31801612 PMCID: PMC6894197 DOI: 10.1186/s13148-019-0756-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 10/06/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Epigenetic mechanisms provide an interface between environmental factors and the genome and are influential in various diseases. These mechanisms, including DNA methylation, influence the regulation of development, differentiation, and establishment of cellular identity. Here, we performed high-throughput methylome profiling to determine whether differential patterns of DNA methylation correlate with Down syndrome (DS). MATERIALS AND METHODS We extracted DNA from the chorionic villi cells of five normal and five DS fetuses at the early developmental stage (12-13 weeks of gestation). Methyl-capture sequencing (MC-Seq) was used to investigate the methylation levels of CpG sites distributed across the whole genome to identify differentially methylated CpG sites (DMCs) and regions (DMRs) in DS. New functional annotations of DMR genes using bioinformatics tools were predicted. RESULTS DNA hypermethylation was observed in DS fetal chorionic villi cells. Significant differences were evident for 4,439 DMCs, including hypermethylation (n = 4,261) and hypomethylation (n = 178). Among them, 140 hypermethylated DMRs and only 1 hypomethylated DMR were located on 121 genes and 1 gene, respectively. One hundred twenty-two genes, including 141 DMRs, were associated with heart morphogenesis and development of the ear, thyroid gland, and nervous systems. The genes were significantly associated with DS and various diseases, including hepatopulmonary syndrome, conductive hearing loss, holoprosencephaly, heart diseases, glaucoma, and musculoskeletal abnormalities. CONCLUSIONS This is the first study to compare the whole-epigenome DNA methylation pattern of the chorionic villi cells from normal and DS fetuses at the early developmental-stage using MC-seq. Overall, our results indicate that the chorionic villi cells of DS fetuses are hypermethylated in all autosomes and suggested that altered DNA methylation may be a recurrent and functionally relevant downstream response to DS in human cells. This study provides basic information for future research focused on the pathophysiology of the DS and its potential effects, as well as the role DNA methylation plays in the early developmental stage of DS fetuses.
Collapse
Affiliation(s)
- Ji Hyae Lim
- Center for Biomarker Research and Precision Medicine, CHA Advanced Research Institute, Gyeonggi-do, Republic of Korea.,Department of Medical Genetics, College of Medicine, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Yu-Jung Kang
- Center for Biomarker Research and Precision Medicine, CHA Advanced Research Institute, Gyeonggi-do, Republic of Korea
| | - Bom Yi Lee
- SD Genomics Co., Ltd., Seoul, Republic of Korea
| | - You Jung Han
- Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University, Seoul, Republic of Korea
| | - Jin Hoon Chung
- Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University, Seoul, Republic of Korea
| | - Moon Young Kim
- Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University, Seoul, Republic of Korea
| | - Min Hyoung Kim
- Department of Obstetrics Gynecology, Mizmedi Hospital, Seoul, Republic of Korea
| | - Jin Woo Kim
- Laboratory of Medical Genetics, Medical Research Institute, Cheil General Hospital and Women's Healthcare Center, Seoul, Republic of Korea
| | - Youl-Hee Cho
- Department of Medical Genetics, College of Medicine, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea.
| | - Hyun Mee Ryu
- Center for Biomarker Research and Precision Medicine, CHA Advanced Research Institute, Gyeonggi-do, Republic of Korea. .,Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University, 59, Yatap-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13496, Republic of Korea.
| |
Collapse
|
8
|
Verhagen JMA, van den Born M, van der Linde HC, G J Nikkels P, Verdijk RM, Kivlen MH, van Unen LMA, Baas AF, Ter Heide H, van Osch-Gevers L, Hoogeveen-Westerveld M, Herkert JC, Bertoli-Avella AM, van Slegtenhorst MA, Wessels MW, Verheijen FW, Hassel D, Hofstra RMW, Hegde RS, van Hasselt PM, van Ham TJ, van de Laar IMBH. Biallelic Variants in ASNA1, Encoding a Cytosolic Targeting Factor of Tail-Anchored Proteins, Cause Rapidly Progressive Pediatric Cardiomyopathy. CIRCULATION-GENOMIC AND PRECISION MEDICINE 2019; 12:397-406. [PMID: 31461301 PMCID: PMC7205403 DOI: 10.1161/circgen.119.002507] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Supplemental Digital Content is available in the text. Pediatric cardiomyopathies are a clinically and genetically heterogeneous group of heart muscle disorders associated with high morbidity and mortality. Although knowledge of the genetic basis of pediatric cardiomyopathy has improved considerably, the underlying cause remains elusive in a substantial proportion of cases.
Collapse
Affiliation(s)
- Judith M A Verhagen
- Department of Clinical Genetics (J.M.A.V., M.v.d.B., H.C.v.d.L., L.M.A.v.U., M.H.-W., M.A.v.S., M.W.W., F.W.V., R.M.W.H., T.J.v.H., I.M.B.H.v.d.L.), Erasmus MC, University Medical Center Rotterdam
| | - Myrthe van den Born
- Department of Clinical Genetics (J.M.A.V., M.v.d.B., H.C.v.d.L., L.M.A.v.U., M.H.-W., M.A.v.S., M.W.W., F.W.V., R.M.W.H., T.J.v.H., I.M.B.H.v.d.L.), Erasmus MC, University Medical Center Rotterdam
| | - Herma C van der Linde
- Department of Clinical Genetics (J.M.A.V., M.v.d.B., H.C.v.d.L., L.M.A.v.U., M.H.-W., M.A.v.S., M.W.W., F.W.V., R.M.W.H., T.J.v.H., I.M.B.H.v.d.L.), Erasmus MC, University Medical Center Rotterdam
| | - Peter G J Nikkels
- Department of Pathology (P.G.J.N.), University Medical Center Utrecht, Utrecht University, the Netherlands
| | - Rob M Verdijk
- Department of Pathology (R.M.V.), Erasmus MC, University Medical Center Rotterdam
| | - Maryann H Kivlen
- Medical Research Council Laboratory of Molecular Biology, Cambridge Biomedical Campus, United Kingdom (M.H.K., R.S.H.)
| | - Leontine M A van Unen
- Department of Clinical Genetics (J.M.A.V., M.v.d.B., H.C.v.d.L., L.M.A.v.U., M.H.-W., M.A.v.S., M.W.W., F.W.V., R.M.W.H., T.J.v.H., I.M.B.H.v.d.L.), Erasmus MC, University Medical Center Rotterdam
| | - Annette F Baas
- Department of Genetics (A.F.B.), University Medical Center Utrecht, Utrecht University, the Netherlands
| | - Henriette Ter Heide
- Department of Pediatric Cardiology (H.t.H.), University Medical Center Utrecht, Utrecht University, the Netherlands
| | - Lennie van Osch-Gevers
- Department of Pediatric Cardiology (L.v.O.-G.), Erasmus MC, University Medical Center Rotterdam
| | - Marianne Hoogeveen-Westerveld
- Department of Clinical Genetics (J.M.A.V., M.v.d.B., H.C.v.d.L., L.M.A.v.U., M.H.-W., M.A.v.S., M.W.W., F.W.V., R.M.W.H., T.J.v.H., I.M.B.H.v.d.L.), Erasmus MC, University Medical Center Rotterdam
| | - Johanna C Herkert
- Department of Genetics, University of Groningen, University Medical Center Groningen, the Netherlands (J.C.H.)
| | | | - Marjon A van Slegtenhorst
- Department of Clinical Genetics (J.M.A.V., M.v.d.B., H.C.v.d.L., L.M.A.v.U., M.H.-W., M.A.v.S., M.W.W., F.W.V., R.M.W.H., T.J.v.H., I.M.B.H.v.d.L.), Erasmus MC, University Medical Center Rotterdam
| | - Marja W Wessels
- Department of Clinical Genetics (J.M.A.V., M.v.d.B., H.C.v.d.L., L.M.A.v.U., M.H.-W., M.A.v.S., M.W.W., F.W.V., R.M.W.H., T.J.v.H., I.M.B.H.v.d.L.), Erasmus MC, University Medical Center Rotterdam
| | - Frans W Verheijen
- Department of Clinical Genetics (J.M.A.V., M.v.d.B., H.C.v.d.L., L.M.A.v.U., M.H.-W., M.A.v.S., M.W.W., F.W.V., R.M.W.H., T.J.v.H., I.M.B.H.v.d.L.), Erasmus MC, University Medical Center Rotterdam
| | - David Hassel
- Department of Medicine III, University Hospital Heidelberg, Germany (D.H.)
| | - Robert M W Hofstra
- Department of Clinical Genetics (J.M.A.V., M.v.d.B., H.C.v.d.L., L.M.A.v.U., M.H.-W., M.A.v.S., M.W.W., F.W.V., R.M.W.H., T.J.v.H., I.M.B.H.v.d.L.), Erasmus MC, University Medical Center Rotterdam
| | - Ramanujan S Hegde
- Medical Research Council Laboratory of Molecular Biology, Cambridge Biomedical Campus, United Kingdom (M.H.K., R.S.H.)
| | - Peter M van Hasselt
- Department of Pediatrics (P.M.v.H.), University Medical Center Utrecht, Utrecht University, the Netherlands
| | - Tjakko J van Ham
- Department of Clinical Genetics (J.M.A.V., M.v.d.B., H.C.v.d.L., L.M.A.v.U., M.H.-W., M.A.v.S., M.W.W., F.W.V., R.M.W.H., T.J.v.H., I.M.B.H.v.d.L.), Erasmus MC, University Medical Center Rotterdam
| | - Ingrid M B H van de Laar
- Department of Clinical Genetics (J.M.A.V., M.v.d.B., H.C.v.d.L., L.M.A.v.U., M.H.-W., M.A.v.S., M.W.W., F.W.V., R.M.W.H., T.J.v.H., I.M.B.H.v.d.L.), Erasmus MC, University Medical Center Rotterdam
| |
Collapse
|
9
|
Guo J, Li Z, Hao C, Guo R, Hu X, Qian S, Zeng J, Gao H, Li W. A novel de novo CASZ1 heterozygous frameshift variant causes dilated cardiomyopathy and left ventricular noncompaction cardiomyopathy. Mol Genet Genomic Med 2019; 7:e828. [PMID: 31268246 PMCID: PMC6687865 DOI: 10.1002/mgg3.828] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 05/28/2019] [Accepted: 06/05/2019] [Indexed: 12/22/2022] Open
Abstract
Background Dilated cardiomyopathy (DCM) is the most common cardiomyopathy with a common presentation of heart failure. It has been reported that CASZ1 loss‐of‐function mutation contributes to familial DCM and congenital ventricular septal defect (VSD). To date, only two pathogenic variants in CASZ1 have been previously reported worldwide. Methods To identify the causative variant in an 11‐month‐old Chinese boy with DCM and left ventricular noncompaction cardiomyopathy (LVNC), trio‐whole‐exome sequencing was performed followed by mutational analysis and Sanger sequencing. Results An unreported de novo heterozygous frameshift variant (c.2443_2459delGTGGGCACCCCCAGCCT, p.Val815Profs*14) in CASZ1 was idenitified in the proband. The frameshift mutation in CASZ1 not only led to DCM but also presented an LVNC phenotype. Conclusion We have identified a novel CASZ1 variant in a patient with combined DCM and LVNC for the first time, thus broadening the phenotypic spectrum of CASZ1 variants. Furthermore, this study emphasized the usefulness of whole‐exome sequencing for genetic diagnosis of cardiomyopathy.
Collapse
Affiliation(s)
- Jun Guo
- Beijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute, MOE Key Laboratory of Major Diseases in Children, Genetics and Birth Defects Control Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.,Henan Key Laboratory of Pediatric Inherited & Metabolic Diseases, Henan Children's Hospital, Zhengzhou Hospital of Beijing Children's Hospital, Zhengzhou, China
| | - Zheng Li
- Pediatric Intensive Care Unit, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Chanjuan Hao
- Beijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute, MOE Key Laboratory of Major Diseases in Children, Genetics and Birth Defects Control Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.,Henan Key Laboratory of Pediatric Inherited & Metabolic Diseases, Henan Children's Hospital, Zhengzhou Hospital of Beijing Children's Hospital, Zhengzhou, China
| | - Ruolan Guo
- Beijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute, MOE Key Laboratory of Major Diseases in Children, Genetics and Birth Defects Control Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.,Henan Key Laboratory of Pediatric Inherited & Metabolic Diseases, Henan Children's Hospital, Zhengzhou Hospital of Beijing Children's Hospital, Zhengzhou, China
| | - Xuyun Hu
- Beijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute, MOE Key Laboratory of Major Diseases in Children, Genetics and Birth Defects Control Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.,Henan Key Laboratory of Pediatric Inherited & Metabolic Diseases, Henan Children's Hospital, Zhengzhou Hospital of Beijing Children's Hospital, Zhengzhou, China
| | - Suyun Qian
- Pediatric Intensive Care Unit, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Jiansheng Zeng
- Pediatric Intensive Care Unit, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Hengmiao Gao
- Pediatric Intensive Care Unit, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Wei Li
- Beijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute, MOE Key Laboratory of Major Diseases in Children, Genetics and Birth Defects Control Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.,Henan Key Laboratory of Pediatric Inherited & Metabolic Diseases, Henan Children's Hospital, Zhengzhou Hospital of Beijing Children's Hospital, Zhengzhou, China
| |
Collapse
|
10
|
Lasser M, Pratt B, Monahan C, Kim SW, Lowery LA. The Many Faces of Xenopus: Xenopus laevis as a Model System to Study Wolf-Hirschhorn Syndrome. Front Physiol 2019; 10:817. [PMID: 31297068 PMCID: PMC6607408 DOI: 10.3389/fphys.2019.00817] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 06/11/2019] [Indexed: 01/09/2023] Open
Abstract
Wolf–Hirschhorn syndrome (WHS) is a rare developmental disorder characterized by intellectual disability and various physical malformations including craniofacial, skeletal, and cardiac defects. These phenotypes, as they involve structures that are derived from the cranial neural crest, suggest that WHS may be associated with abnormalities in neural crest cell (NCC) migration. This syndrome is linked with assorted mutations on the short arm of chromosome 4, most notably the microdeletion of a critical genomic region containing several candidate genes. However, the function of these genes during embryonic development, as well as the cellular and molecular mechanisms underlying the disorder, are still unknown. The model organism Xenopus laevis offers a number of advantages for studying WHS. With the Xenopus genome sequenced, genetic manipulation strategies can be readily designed in order to alter the dosage of the WHS candidate genes. Moreover, a variety of assays are available for use in Xenopus to examine how manipulation of WHS genes leads to changes in the development of tissue and organ systems affected in WHS. In this review article, we highlight the benefits of using X. laevis as a model system for studying human genetic disorders of development, with a focus on WHS.
Collapse
Affiliation(s)
- Micaela Lasser
- Department of Biology, Boston College, Chestnut Hill, MA, United States
| | - Benjamin Pratt
- Department of Biology, Boston College, Chestnut Hill, MA, United States
| | - Connor Monahan
- Department of Biology, Boston College, Chestnut Hill, MA, United States
| | - Seung Woo Kim
- Department of Biology, Boston College, Chestnut Hill, MA, United States
| | - Laura Anne Lowery
- Department of Biology, Boston College, Chestnut Hill, MA, United States
| |
Collapse
|
11
|
Rasouli SJ, El-Brolosy M, Tsedeke AT, Bensimon-Brito A, Ghanbari P, Maischein HM, Kuenne C, Stainier DY. The flow responsive transcription factor Klf2 is required for myocardial wall integrity by modulating Fgf signaling. eLife 2018; 7:e38889. [PMID: 30592462 PMCID: PMC6329608 DOI: 10.7554/elife.38889] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 12/24/2018] [Indexed: 12/17/2022] Open
Abstract
Complex interplay between cardiac tissues is crucial for their integrity. The flow responsive transcription factor KLF2, which is expressed in the endocardium, is vital for cardiovascular development but its exact role remains to be defined. To this end, we mutated both klf2 paralogues in zebrafish, and while single mutants exhibit no obvious phenotype, double mutants display a novel phenotype of cardiomyocyte extrusion towards the abluminal side. This extrusion requires cardiac contractility and correlates with the mislocalization of N-cadherin from the lateral to the apical side of cardiomyocytes. Transgenic rescue data show that klf2 expression in endothelium, but not myocardium, prevents this cardiomyocyte extrusion phenotype. Transcriptome analysis of klf2 mutant hearts reveals that Fgf signaling is affected, and accordingly, we find that inhibition of Fgf signaling in wild-type animals can lead to abluminal cardiomyocyte extrusion. These studies provide new insights into how Klf2 regulates cardiovascular development and specifically myocardial wall integrity.
Collapse
Affiliation(s)
- Seyed Javad Rasouli
- Department of Developmental GeneticsMax Planck Institute for Heart and Lung ResearchBad NauheimGermany
| | - Mohamed El-Brolosy
- Department of Developmental GeneticsMax Planck Institute for Heart and Lung ResearchBad NauheimGermany
| | - Ayele Taddese Tsedeke
- Department of Developmental GeneticsMax Planck Institute for Heart and Lung ResearchBad NauheimGermany
| | - Anabela Bensimon-Brito
- Department of Developmental GeneticsMax Planck Institute for Heart and Lung ResearchBad NauheimGermany
| | - Parisa Ghanbari
- Department of Cardiac Development and RemodelingMax Planck Institute for Heart and Lung ResearchBad NauheimGermany
| | - Hans-Martin Maischein
- Department of Developmental GeneticsMax Planck Institute for Heart and Lung ResearchBad NauheimGermany
| | - Carsten Kuenne
- Bioinformatics Core UnitMax Planck Institute for Heart and Lung ResearchBad NauheimGermany
| | - Didier Y Stainier
- Department of Developmental GeneticsMax Planck Institute for Heart and Lung ResearchBad NauheimGermany
| |
Collapse
|
12
|
Cheng Z, Zhang Q, Yin A, Feng M, Li H, Liu H, Li Y, Qian L. The long non-coding RNA uc.4 influences cell differentiation through the TGF-beta signaling pathway. Exp Mol Med 2018; 50:e447. [PMID: 29504607 PMCID: PMC5903826 DOI: 10.1038/emm.2017.278] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 08/26/2017] [Accepted: 08/31/2017] [Indexed: 02/07/2023] Open
Abstract
In a previous study, we screened thousands of long non-coding RNAs (lncRNAs) to assess their potential relationship with congenital heart disease (CHD). In this study, uc.4 attracted our attention because of its high level of evolutionary conservation and its antisense orientation to the CASZ1 gene, which is vital for heart development. We explored the function of uc.4 in cells and in zebrafish, and describe a potential mechanism of action. P19 cells were used to investigate the function of uc.4. We studied the effect of uc.4 overexpression on heart development in zebrafish. The overexpression of uc.4 influenced cell differentiation by inhibiting the TGF-beta signaling pathway and suppressed heart development in zebrafish, resulting in cardiac malformation. Taken together, our findings show that uc.4 is involved in heart development, thus providing a potential therapeutic target for CHD.
Collapse
Affiliation(s)
- Zijie Cheng
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Qijun Zhang
- Department of Cardiology, YinZhou Hospital Affiliated to Medical School of Ningbo University, Ningbo, China
| | - Anwen Yin
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Mengwen Feng
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Hua Li
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Hailang Liu
- Huai An First People's Hospital, HuaiAn, China
| | - Yun Li
- Department of Pharmacy, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Lingmei Qian
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| |
Collapse
|
13
|
Armes JE, Williams M, Price G, Wallis T, Gallagher R, Matsika A, Joy C, Galea M, Gardener G, Leach R, Swagemakers SM, Tearle R, Stubbs A, Harraway J, van der Spek PJ, Venter DJ. Application of Whole Genome Sequencing Technology in the Investigation of Genetic Causes of Fetal, Perinatal, and Early Infant Death. Pediatr Dev Pathol 2018. [PMID: 28641477 DOI: 10.1177/1093526617715528] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Death in the fetal, perinatal, and early infant age-group has a multitude of causes, a proportion of which is presumed to be genetic. Defining a specific genetic aberration leading to the death is problematic at this young age, due to limited phenotype-genotype correlation inherent in the underdeveloped phenotype, the inability to assess certain phenotypic traits after death, and the problems of dealing with rare disorders. In this study, our aim was to increase the yield of identification of a defined genetic cause of an early death. Therefore, we employed whole genome sequencing and bioinformatic filtering techniques as a comprehensive, unbiased genetic investigation into 16 fetal, perinatal, and early infant deaths, which had undergone a full autopsy. A likely genetic cause was identified in two cases (in genes; COL2A1 and RYR1) and a speculative genetic cause in a further six cases (in genes: ARHGAP35, BBS7, CASZ1, CRIM1, DHCR7, HADHB, HAPLN3, HSPG2, MYO18B, and SRGAP2). This investigation indicates that whole genome sequencing is a significantly enabling technology when determining genetic causes of early death.
Collapse
Affiliation(s)
- Jane E Armes
- 1 Department of Pathology, Mater Health, South Brisbane, Queensland, Australia.,2 Mater Research Institute, University of Queensland, Queensland, Australia.,3 School of Medicine, University of Queensland, Queensland, Australia
| | - Mark Williams
- 1 Department of Pathology, Mater Health, South Brisbane, Queensland, Australia.,2 Mater Research Institute, University of Queensland, Queensland, Australia
| | - Gareth Price
- 1 Department of Pathology, Mater Health, South Brisbane, Queensland, Australia
| | - Tristan Wallis
- 1 Department of Pathology, Mater Health, South Brisbane, Queensland, Australia
| | - Renee Gallagher
- 1 Department of Pathology, Mater Health, South Brisbane, Queensland, Australia
| | - Admire Matsika
- 1 Department of Pathology, Mater Health, South Brisbane, Queensland, Australia
| | - Christopher Joy
- 1 Department of Pathology, Mater Health, South Brisbane, Queensland, Australia
| | - Melanie Galea
- 1 Department of Pathology, Mater Health, South Brisbane, Queensland, Australia
| | - Glenn Gardener
- 2 Mater Research Institute, University of Queensland, Queensland, Australia.,4 Centre for Maternal Fetal Medicine, Mater Health, South Brisbane, Queensland, Australia
| | - Rick Leach
- 5 Complete Genomics Inc, Mountain View, California
| | | | - Rick Tearle
- 5 Complete Genomics Inc, Mountain View, California.,7 Davies Research Centre, School of Animal and Veterinary Sciences, Faculty of Sciences, University of Adelaide, Roseworthy, South Australia, Australia
| | - Andrew Stubbs
- 6 Department of Bioinformatics, Erasmus MC, Rotterdam, The Netherlands
| | - James Harraway
- 1 Department of Pathology, Mater Health, South Brisbane, Queensland, Australia
| | - Peter J van der Spek
- 6 Department of Bioinformatics, Erasmus MC, Rotterdam, The Netherlands.,8 Department of Pathology, Erasmus MC, Rotterdam, The Netherlands
| | - Deon J Venter
- 1 Department of Pathology, Mater Health, South Brisbane, Queensland, Australia.,2 Mater Research Institute, University of Queensland, Queensland, Australia.,3 School of Medicine, University of Queensland, Queensland, Australia
| |
Collapse
|
14
|
Anghel SA, McGilvray PT, Hegde RS, Keenan RJ. Identification of Oxa1 Homologs Operating in the Eukaryotic Endoplasmic Reticulum. Cell Rep 2017; 21:3708-3716. [PMID: 29281821 PMCID: PMC5868721 DOI: 10.1016/j.celrep.2017.12.006] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 10/18/2017] [Accepted: 12/01/2017] [Indexed: 12/23/2022] Open
Abstract
Members of the evolutionarily conserved Oxa1/Alb3/YidC family mediate membrane protein biogenesis at the mitochondrial inner membrane, chloroplast thylakoid membrane, and bacterial plasma membrane, respectively. Despite their broad phylogenetic distribution, no Oxa1/Alb3/YidC homologs are known to operate in eukaryotic cells outside the endosymbiotic organelles. Here, we present bioinformatic evidence that the tail-anchored protein insertion factor WRB/Get1, the "endoplasmic reticulum (ER) membrane complex" subunit EMC3, and TMCO1 are ER-resident homologs of the Oxa1/Alb3/YidC family. Topology mapping and co-evolution-based modeling demonstrate that Get1, EMC3, and TMCO1 share a conserved Oxa1-like architecture. Biochemical analysis of human TMCO1, the only homolog not previously linked to membrane protein biogenesis, shows that it associates with the Sec translocon and ribosomes. These findings suggest a specific biochemical function for TMCO1 and define a superfamily of proteins-the "Oxa1 superfamily"-whose shared function is to facilitate membrane protein biogenesis.
Collapse
Affiliation(s)
- S Andrei Anghel
- Department of Biochemistry and Molecular Biology , The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA; Cell and Molecular Biology Graduate Program , The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA
| | - Philip T McGilvray
- Department of Biochemistry and Molecular Biology , The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA
| | - Ramanujan S Hegde
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK
| | - Robert J Keenan
- Department of Biochemistry and Molecular Biology , The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA.
| |
Collapse
|
15
|
Kennedy L, Kaltenbrun E, Greco TM, Temple B, Herring LE, Cristea IM, Conlon FL. Formation of a TBX20-CASZ1 protein complex is protective against dilated cardiomyopathy and critical for cardiac homeostasis. PLoS Genet 2017; 13:e1007011. [PMID: 28945738 PMCID: PMC5629033 DOI: 10.1371/journal.pgen.1007011] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 10/05/2017] [Accepted: 09/07/2017] [Indexed: 01/01/2023] Open
Abstract
By the age of 40, one in five adults without symptoms of cardiovascular disease are at risk for developing congestive heart failure. Within this population, dilated cardiomyopathy (DCM) remains one of the leading causes of disease and death, with nearly half of cases genetically determined. Though genetic and high throughput sequencing-based approaches have identified sporadic and inherited mutations in a multitude of genes implicated in cardiomyopathy, how combinations of asymptomatic mutations lead to cardiac failure remains a mystery. Since a number of studies have implicated mutations of the transcription factor TBX20 in congenital heart diseases, we investigated the underlying mechanisms, using an unbiased systems-based screen to identify novel, cardiac-specific binding partners. We demonstrated that TBX20 physically and genetically interacts with the essential transcription factor CASZ1. This interaction is required for survival, as mice heterozygous for both Tbx20 and Casz1 die post-natally as a result of DCM. A Tbx20 mutation associated with human familial DCM sterically interferes with the TBX20-CASZ1 interaction and provides a physical basis for how this human mutation disrupts normal cardiac function. Finally, we employed quantitative proteomic analyses to define the molecular pathways mis-regulated upon disruption of this novel complex. Collectively, our proteomic, biochemical, genetic, and structural studies suggest that the physical interaction between TBX20 and CASZ1 is required for cardiac homeostasis, and further, that reduction or loss of this critical interaction leads to DCM. This work provides strong evidence that DCM can be inherited through a digenic mechanism. A molecular understanding of cardiomyocyte development is an essential goal for improving clinical approaches to CHD. While TBX20 is an essential transcription factor for heart development and its disease relevance is well established, many fundamental questions remain about the mechanism of TBX20 function. Principle among these is how TBX20 mutations associated with adult dilated cardiomyopathy circumvent (DCM) the essential embryonic requirement for TBX20 in heart development. Here we report using an integrated approach that TBX20 complexes with the cardiac transcription factor CASZ1 in vivo. We confirmed TBX20 and CASZ1 interact biochemically and genetically, and show mice heterozygous for both Tbx20 and Casz1 die, beginning at 4 to 8 weeks post birth, exhibiting hallmarks of DCM. Interestingly, the human mutant TBX20F256I bypasses the early essential requirement for TBX20 but leads to DCM. We report here that TBX20F256I disrupts the TBX20-CASZ1 interaction, ascribing clinical relevance to this protein complex. Further, by using quantitative proteomics we have identified the molecular pathways altered in TBX20-CASZ1-mediated DCM. Together, these results identify a novel interaction between TBX20 and CASZ1 that is essential for maintaining cardiac homeostasis and imply that DCM can be inherited through a digenic mechanism.
Collapse
Affiliation(s)
- Leslie Kennedy
- University of North Carolina McAllister Heart Institute, UNC-Chapel Hill, Chapel Hill, NC, United States of America
- Integrative Program for Biological & Genome Sciences, UNC-Chapel Hill, Chapel Hill, NC, United States of America
- Department of Genetics, UNC-Chapel Hill, Chapel Hill, NC, United States of America
| | - Erin Kaltenbrun
- University of North Carolina McAllister Heart Institute, UNC-Chapel Hill, Chapel Hill, NC, United States of America
- Integrative Program for Biological & Genome Sciences, UNC-Chapel Hill, Chapel Hill, NC, United States of America
- Department of Genetics, UNC-Chapel Hill, Chapel Hill, NC, United States of America
| | - Todd M. Greco
- Department of Molecular Biology, Princeton University, Princeton, NJ, United States of America
| | - Brenda Temple
- R.L. Juliano Structural Bioinformatics Core, Department of Biochemistry and Biophysics, UNC-Chapel Hill, Chapel Hill, NC, United States of America
| | - Laura E. Herring
- UNC Proteomics Core Facility, UNC-Chapel Hill, Chapel Hill, NC, United States of America
- Department of Pharmacology, UNC-Chapel Hill, Chapel Hill, NC, United States of America
| | - Ileana M. Cristea
- Department of Molecular Biology, Princeton University, Princeton, NJ, United States of America
| | - Frank L. Conlon
- University of North Carolina McAllister Heart Institute, UNC-Chapel Hill, Chapel Hill, NC, United States of America
- Integrative Program for Biological & Genome Sciences, UNC-Chapel Hill, Chapel Hill, NC, United States of America
- Department of Genetics, UNC-Chapel Hill, Chapel Hill, NC, United States of America
- Department of Biology, UNC-Chapel Hill, Chapel Hill, NC, United States of America
- * E-mail:
| |
Collapse
|
16
|
Daniele LL, Emran F, Lobo GP, Gaivin RJ, Perkins BD. Mutation of wrb, a Component of the Guided Entry of Tail-Anchored Protein Pathway, Disrupts Photoreceptor Synapse Structure and Function. Invest Ophthalmol Vis Sci 2017; 57:2942-54. [PMID: 27273592 PMCID: PMC4898200 DOI: 10.1167/iovs.15-18996] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
PURPOSE Tail-anchored (TA) proteins contain a single hydrophobic domain at the C-terminus and are posttranslationally inserted into the ER membrane via the GET (guided entry of tail-anchored proteins) pathway. The role of the GET pathway in photoreceptors is unexplored. The goal of this study was to characterize the zebrafish pinball wizard mutant, which disrupts Wrb, a core component of the GET pathway. METHODS Electroretinography, optokinetic response measurements (OKR), immunohistochemistry, and electron microscopy analyses were employed to assess ribbon synapse function, protein expression, and ultrastructure in 5-day-old zebrafish larvae. Expression of wrb was investigated with real-time qRT-PCR and in situ hybridization. RESULTS Mutation of wrb abolished the OKR and greatly diminished the ERG b-wave, but not the a-wave. Ribeye and SV2 were partially mislocalized in both photoreceptors and hair cells of wrb mutants. Fewer contacts were seen between photoreceptors and bipolar cells in wrb-/- mutants. Expression of wrb was observed throughout the nervous system and Wrb localized to the ER and synaptic region of photoreceptors. Morpholino knockdown of the cytosolic ATPase trc40, which targets TA proteins to the ER, also diminished the OKR. Overexpression of wrb fully restored contrast sensitivity in mutants, while overexpression of mutant wrbR73A, which cannot bind Trc40, did not. CONCLUSIONS Proteins Wrb and Trc40 are required for synaptic transmission between photoreceptors and bipolar cells, indicating that TA protein insertion by the TRC pathway is a critical step in ribbon synapse assembly and function.
Collapse
Affiliation(s)
- Lauren L Daniele
- Department of Ophthalmic Research Cole Eye Institute, Cleveland Clinic, Cleveland, Ohio, United States
| | - Farida Emran
- Centre for Research in Neuroscience, McGill University, Montreal, Quebec, Canada
| | - Glenn P Lobo
- Department of Ophthalmic Research Cole Eye Institute, Cleveland Clinic, Cleveland, Ohio, United States
| | - Robert J Gaivin
- Department of Ophthalmic Research Cole Eye Institute, Cleveland Clinic, Cleveland, Ohio, United States
| | - Brian D Perkins
- Department of Ophthalmic Research Cole Eye Institute, Cleveland Clinic, Cleveland, Ohio, United States
| |
Collapse
|
17
|
Tandon P, Conlon F, Furlow JD, Horb ME. Expanding the genetic toolkit in Xenopus: Approaches and opportunities for human disease modeling. Dev Biol 2017; 426:325-335. [PMID: 27109192 PMCID: PMC5074924 DOI: 10.1016/j.ydbio.2016.04.009] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 03/23/2016] [Accepted: 04/12/2016] [Indexed: 11/29/2022]
Abstract
The amphibian model Xenopus, has been used extensively over the past century to study multiple aspects of cell and developmental biology. Xenopus offers advantages of a non-mammalian system, including high fecundity, external development, and simple housing requirements, with additional advantages of large embryos, highly conserved developmental processes, and close evolutionary relationship to higher vertebrates. There are two main species of Xenopus used in biomedical research, Xenopus laevis and Xenopus tropicalis; the common perception is that both species are excellent models for embryological and cell biological studies, but only Xenopus tropicalis is useful as a genetic model. The recent completion of the Xenopus laevis genome sequence combined with implementation of genome editing tools, such as TALENs (transcription activator-like effector nucleases) and CRISPR-Cas (clustered regularly interspaced short palindromic repeats-CRISPR associated nucleases), greatly facilitates the use of both Xenopus laevis and Xenopus tropicalis for understanding gene function in development and disease. In this paper, we review recent advances made in Xenopus laevis and Xenopus tropicalis with TALENs and CRISPR-Cas and discuss the various approaches that have been used to generate knockout and knock-in animals in both species. These advances show that both Xenopus species are useful for genetic approaches and in particular counters the notion that Xenopus laevis is not amenable to genetic manipulations.
Collapse
Affiliation(s)
- Panna Tandon
- University of North Carolina McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3280, United States.
| | - Frank Conlon
- University of North Carolina McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3280, United States
| | - J David Furlow
- Deparment of Neurobiology, Physiology and Behavior, University of California, Davis, CA 95616, United States
| | - Marko E Horb
- National Xenopus Resource and Eugene Bell Center for Regenerative Biology and Tissue Engineering, Marine Biological Laboratory, Woods Hole, MA 02543, United States.
| |
Collapse
|
18
|
Foxa2 identifies a cardiac progenitor population with ventricular differentiation potential. Nat Commun 2017; 8:14428. [PMID: 28195173 PMCID: PMC5316866 DOI: 10.1038/ncomms14428] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 12/22/2016] [Indexed: 12/18/2022] Open
Abstract
The recent identification of progenitor populations that contribute to the developing heart in a distinct spatial and temporal manner has fundamentally improved our understanding of cardiac development. However, the mechanisms that direct atrial versus ventricular specification remain largely unknown. Here we report the identification of a progenitor population that gives rise primarily to cardiovascular cells of the ventricles and only to few atrial cells (<5%) of the differentiated heart. These progenitors are specified during gastrulation, when they transiently express Foxa2, a gene not previously implicated in cardiac development. Importantly, Foxa2+ cells contribute to previously identified progenitor populations in a defined pattern and ratio. Lastly, we describe an analogous Foxa2+ population during differentiation of embryonic stem cells. Together, these findings provide insight into the developmental origin of ventricular and atrial cells, and may lead to the establishment of new strategies for generating chamber-specific cell types from pluripotent stem cells.
Collapse
|
19
|
Rivera-Monroy J, Musiol L, Unthan-Fechner K, Farkas Á, Clancy A, Coy-Vergara J, Weill U, Gockel S, Lin SY, Corey DP, Kohl T, Ströbel P, Schuldiner M, Schwappach B, Vilardi F. Mice lacking WRB reveal differential biogenesis requirements of tail-anchored proteins in vivo. Sci Rep 2016; 6:39464. [PMID: 28000760 PMCID: PMC5175141 DOI: 10.1038/srep39464] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 11/22/2016] [Indexed: 02/06/2023] Open
Abstract
Tail-anchored (TA) proteins are post-translationally inserted into membranes. The TRC40 pathway targets TA proteins to the endoplasmic reticulum via a receptor comprised of WRB and CAML. TRC40 pathway clients have been identified using in vitro assays, however, the relevance of the TRC40 pathway in vivo remains unknown. We followed the fate of TA proteins in two tissue-specific WRB knockout mouse models and found that their dependence on the TRC40 pathway in vitro did not predict their reaction to receptor depletion in vivo. The SNARE syntaxin 5 (Stx5) was extremely sensitive to disruption of the TRC40 pathway. Screening yeast TA proteins with mammalian homologues, we show that the particular sensitivity of Stx5 is conserved, possibly due to aggregation propensity of its cytoplasmic domain. We establish that Stx5 is an autophagy target that is inefficiently membrane-targeted by alternative pathways. Our results highlight an intimate relationship between the TRC40 pathway and cellular proteostasis.
Collapse
Affiliation(s)
- Jhon Rivera-Monroy
- Department of Molecular Biology, Universitätsmedizin Göttingen, D-37073 Göttingen, Germany
| | - Lena Musiol
- Department of Molecular Biology, Universitätsmedizin Göttingen, D-37073 Göttingen, Germany
| | - Kirsten Unthan-Fechner
- Department of Molecular Biology, Universitätsmedizin Göttingen, D-37073 Göttingen, Germany
| | - Ákos Farkas
- Department of Molecular Biology, Universitätsmedizin Göttingen, D-37073 Göttingen, Germany
| | - Anne Clancy
- Department of Molecular Biology, Universitätsmedizin Göttingen, D-37073 Göttingen, Germany
| | - Javier Coy-Vergara
- Department of Molecular Biology, Universitätsmedizin Göttingen, D-37073 Göttingen, Germany
| | - Uri Weill
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Sarah Gockel
- Department of Cardiology &Pulmonology, Universitätsmedizin Göttingen, D-37075 Göttingen, Germany
| | - Shuh-Yow Lin
- Howard Hughes Medical Institute and Department of Neurobiology, Harvard Medical School, Boston, MA, USA
| | - David P Corey
- Howard Hughes Medical Institute and Department of Neurobiology, Harvard Medical School, Boston, MA, USA
| | - Tobias Kohl
- Department of Cardiology &Pulmonology, Universitätsmedizin Göttingen, D-37075 Göttingen, Germany
| | - Philipp Ströbel
- Institute of Pathology, Universitätsmedizin Göttingen, D-37073 Göttingen, Germany
| | - Maya Schuldiner
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Blanche Schwappach
- Department of Molecular Biology, Universitätsmedizin Göttingen, D-37073 Göttingen, Germany.,Max-Planck Institute for Biophysical Chemistry, D-37077, Göttingen, Germany
| | - Fabio Vilardi
- Department of Molecular Biology, Universitätsmedizin Göttingen, D-37073 Göttingen, Germany
| |
Collapse
|
20
|
A Matter of the Heart: The African Clawed Frog Xenopus as a Model for Studying Vertebrate Cardiogenesis and Congenital Heart Defects. J Cardiovasc Dev Dis 2016; 3:jcdd3020021. [PMID: 29367567 PMCID: PMC5715680 DOI: 10.3390/jcdd3020021] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 05/25/2016] [Accepted: 05/30/2016] [Indexed: 12/20/2022] Open
Abstract
The African clawed frog, Xenopus, is a valuable non-mammalian model organism to investigate vertebrate heart development and to explore the underlying molecular mechanisms of human congenital heart defects (CHDs). In this review, we outline the similarities between Xenopus and mammalian cardiogenesis, and provide an overview of well-studied cardiac genes in Xenopus, which have been associated with congenital heart conditions. Additionally, we highlight advantages of modeling candidate genes derived from genome wide association studies (GWAS) in Xenopus and discuss commonly used techniques.
Collapse
|
21
|
Mattar P, Cayouette M. Mechanisms of temporal identity regulation in mouse retinal progenitor cells. NEUROGENESIS 2015; 2:e1125409. [PMID: 27606333 PMCID: PMC4973599 DOI: 10.1080/23262133.2015.1125409] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 11/19/2015] [Accepted: 11/20/2015] [Indexed: 10/29/2022]
Abstract
While much progress has been made in recent years toward elucidating the transcription factor codes controlling how neural progenitor cells generate the various glial and neuronal cell types in a particular spatial domain, much less is known about how these progenitors alter their output over time. In the past years, work in the developing mouse retina has provided evidence that a transcriptional cascade similar to the one used in Drosophila neuroblasts might control progenitor temporal identity in vertebrates. The zinc finger transcription factor Ikzf1 (Ikaros), an ortholog of Drosophila hunchback, was reported to confer early temporal identity in retinal progenitors and, more recently, the ortholog of Drosophila castor, Casz1, was found to function as a mid/late temporal identity factor that is negatively regulated by Ikzf1. The molecular mechanisms by which these temporal identity factors function in retinal progenitors, however, remain unknown. Here we briefly review previous work on the vertebrate temporal identity factors in the retina, and propose a model by which they might operate.
Collapse
Affiliation(s)
- Pierre Mattar
- Cellular Neurobiology Research Unit; Institut de recherches cliniques de Montréal Montréal, QC, Canada
| | - Michel Cayouette
- Cellular Neurobiology Research Unit; Institut de recherches cliniques de Montréal Montréal, QC, Canada; Department of Medicine; Université de Montréal Montréal, QC, Canada; Department of Anatomy and Cell Biology and Division of Experimental Medicine; McGill University Montréal, QC, Canada
| |
Collapse
|
22
|
The Ultrasonic Microsurgical Anatomical Comparative Study of the CHD Fetuses and Their Clinical Significance. BIOMED RESEARCH INTERNATIONAL 2015; 2015:520394. [PMID: 26640788 PMCID: PMC4657069 DOI: 10.1155/2015/520394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 06/03/2015] [Accepted: 06/07/2015] [Indexed: 12/03/2022]
Abstract
The aim of our study was to increase the detection rate of fetal cardiac malformations for congenital heart disease (CHD). The ultrasonic and microanatomical methods were combined to study the CHD cases firstly, which could provide the microsurgical anatomical basis to the prenatal ultrasonic diagnosis which was used in suspected CHD and help the sonographer to improve the quality of fetal cardiac diagnosis. We established the ultrasonic standard section of the 175 complex CHD cases and collected the fetal echocardiography image files. The induced/aborted fetuses were fixed by 4% paraformaldehyde and dissected by the ultrasonic microsurgical anatomy. This research could obtain the fetal cardiac anatomic cross-sectional images which was consistent with the ultrasonic standard section and could clearly show the internal structure of the vascular malformation that optimized the ultrasound examination individually. This method could directly display the variation of the CHD fetal heart clearly and comprehensively help us to understand the complex fetal cardiac malformation from the internal structure of the vascular malformation which was consolidated by the anatomical basis of the fetal heart. This study could improve the integrity and accuracy of the prenatal cardiac ultrasound examination tremendously.
Collapse
|
23
|
Identifying Regulators of Morphogenesis Common to Vertebrate Neural Tube Closure and Caenorhabditis elegans Gastrulation. Genetics 2015; 202:123-39. [PMID: 26434722 DOI: 10.1534/genetics.115.183137] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 09/29/2015] [Indexed: 12/18/2022] Open
Abstract
Neural tube defects including spina bifida are common and severe congenital disorders. In mice, mutations in more than 200 genes can result in neural tube defects. We hypothesized that this large gene set might include genes whose homologs contribute to morphogenesis in diverse animals. To test this hypothesis, we screened a set of Caenorhabditis elegans homologs for roles in gastrulation, a topologically similar process to vertebrate neural tube closure. Both C. elegans gastrulation and vertebrate neural tube closure involve the internalization of surface cells, requiring tissue-specific gene regulation, actomyosin-driven apical constriction, and establishment and maintenance of adhesions between specific cells. Our screen identified several neural tube defect gene homologs that are required for gastrulation in C. elegans, including the transcription factor sptf-3. Disruption of sptf-3 in C. elegans reduced the expression of early endodermally expressed genes as well as genes expressed in other early cell lineages, establishing sptf-3 as a key contributor to multiple well-studied C. elegans cell fate specification pathways. We also identified members of the actin regulatory WAVE complex (wve-1, gex-2, gex-3, abi-1, and nuo-3a). Disruption of WAVE complex members reduced the narrowing of endodermal cells' apical surfaces. Although WAVE complex members are expressed broadly in C. elegans, we found that expression of a vertebrate WAVE complex member, nckap1, is enriched in the developing neural tube of Xenopus. We show that nckap1 contributes to neural tube closure in Xenopus. This work identifies in vivo roles for homologs of mammalian neural tube defect genes in two manipulable genetic model systems.
Collapse
|
24
|
Dorr KM, Amin NM, Kuchenbrod LM, Labiner H, Charpentier MS, Pevny LH, Wessels A, Conlon FL. Casz1 is required for cardiomyocyte G1-to-S phase progression during mammalian cardiac development. Development 2015; 142:2037-47. [PMID: 25953344 DOI: 10.1242/dev.119107] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 04/16/2015] [Indexed: 01/06/2023]
Abstract
Organ growth occurs through the integration of external growth signals during the G1 phase of the cell cycle to initiate DNA replication. Although numerous growth factor signals have been shown to be required for the proliferation of cardiomyocytes, genetic studies have only identified a very limited number of transcription factors that act to regulate the entry of cardiomyocytes into S phase. Here, we report that the cardiac para-zinc-finger protein CASZ1 is expressed in murine cardiomyocytes. Genetic fate mapping with an inducible Casz1 allele demonstrates that CASZ1-expressing cells give rise to cardiomyocytes in the first and second heart fields. We show through the generation of a cardiac conditional null mutation that Casz1 is essential for the proliferation of cardiomyocytes in both heart fields and that loss of Casz1 leads to a decrease in cardiomyocyte cell number. We further report that the loss of Casz1 leads to a prolonged or arrested S phase, a decrease in DNA synthesis, an increase in phospho-RB and a concomitant decrease in the cardiac mitotic index. Taken together, these studies establish a role for CASZ1 in mammalian cardiomyocyte cell cycle progression in both the first and second heart fields.
Collapse
Affiliation(s)
- Kerry M Dorr
- University of North Carolina McAllister Heart Institute, UNC-Chapel Hill, Chapel Hill, NC 27599-3280, USA Department of Genetics, UNC-Chapel Hill, Chapel Hill, NC 27599-3280, USA
| | - Nirav M Amin
- University of North Carolina McAllister Heart Institute, UNC-Chapel Hill, Chapel Hill, NC 27599-3280, USA Department of Genetics, UNC-Chapel Hill, Chapel Hill, NC 27599-3280, USA
| | - Lauren M Kuchenbrod
- University of North Carolina McAllister Heart Institute, UNC-Chapel Hill, Chapel Hill, NC 27599-3280, USA Department of Genetics, UNC-Chapel Hill, Chapel Hill, NC 27599-3280, USA
| | - Hanna Labiner
- Department of Biology, UNC-Chapel Hill, Chapel Hill, NC 27599-3280, USA
| | - Marta S Charpentier
- University of North Carolina McAllister Heart Institute, UNC-Chapel Hill, Chapel Hill, NC 27599-3280, USA Department of Genetics, UNC-Chapel Hill, Chapel Hill, NC 27599-3280, USA
| | - Larysa H Pevny
- Department of Genetics, UNC-Chapel Hill, Chapel Hill, NC 27599-3280, USA Neuroscience Center, UNC-Chapel Hill, Chapel Hill, NC 27599-3280, USA
| | - Andy Wessels
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Frank L Conlon
- University of North Carolina McAllister Heart Institute, UNC-Chapel Hill, Chapel Hill, NC 27599-3280, USA Department of Genetics, UNC-Chapel Hill, Chapel Hill, NC 27599-3280, USA Department of Biology, UNC-Chapel Hill, Chapel Hill, NC 27599-3280, USA
| |
Collapse
|