1
|
Lee VM, Hernandez S, Giang B, Chabot C, Hernandez J, de Bellard ME. Molecular Events Controlling Cessation of Trunk Neural Crest Migration and Onset of Differentiation. Front Cell Dev Biol 2020; 8:199. [PMID: 32318567 PMCID: PMC7147452 DOI: 10.3389/fcell.2020.00199] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 03/09/2020] [Indexed: 12/30/2022] Open
Abstract
Neural crest cells (NCC) migrate extensively in vertebrate embryos to populate diverse derivatives including ganglia of the peripheral nervous system. Little is known about the molecular mechanisms that lead migrating trunk NCC to settle at selected sites in the embryo, ceasing their migration and initiating differentiation programs. To identify candidate genes involved in these processes, we profiled genes up-regulated in purified post-migratory compared with migratory NCC using a staged, macroarrayed cDNA library. A secondary screen of in situ hybridization revealed that many genes are specifically enhanced in neural crest-derived ganglia, including macrophage migration inhibitory factor (MIF), a ligand for CXCR4 receptor. Through in vivo and in vitro assays, we found that MIF functions as a potent chemoattractant for NCC. These results provide a molecular profile of genes expressed concomitant with gangliogenesis, thus, offering new markers and potential regulatory candidates involved in cessation of migration and onset of differentiation.
Collapse
Affiliation(s)
- Vivian M Lee
- Universal Cells Inc., Seattle, WA, United States
| | - Sergio Hernandez
- Biology Department, California State University Northridge, Northridge, CA, United States
| | - Belle Giang
- Moorpark College, Moorpark, CA, United States
| | - Chris Chabot
- Biology Department, California State University Northridge, Northridge, CA, United States
| | | | - Maria Elena de Bellard
- Biology Department, California State University Northridge, Northridge, CA, United States
| |
Collapse
|
2
|
Li X, Miao Y, Pal DS, Devreotes PN. Excitable networks controlling cell migration during development and disease. Semin Cell Dev Biol 2019; 100:133-142. [PMID: 31836289 DOI: 10.1016/j.semcdb.2019.11.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 10/21/2019] [Accepted: 11/01/2019] [Indexed: 12/30/2022]
Abstract
The directed movements of individual, groups, or sheets of cells at specific times in particular locations bring about form and complexity to developing organisms. Cells move by extending protrusions, such as macropinosomes, pseudopods, lamellipods, filopods, or blebs. Although many of the cytoskeletal components within these structures are known, less is known about the mechanisms that determine their location, number, and characteristics. Recent evidence suggests that control may be exerted by a signal transduction excitable network whose components and activities, including Ras, PI3K, TorC2, and phosphoinositides, self-organize on the plasma membrane and propagate in waves. The waves drive the various types of protrusions, which in turn, determine the modes of cell migration. Acute perturbations at specific points in the network produce abrupt shifts in protrusion type, including transitions from pseudopods to filopods or lamellipods. These observations have also contributed to a delineation of the signal transduction network, including candidate fast positive and delayed negative feedback loops. The network contains many oncogenes and tumor suppressors, and other molecules which have recently been implicated in developmental and metabolic abnormalities. Thus, the concept of signal transduction network excitability in cell migration can be used to understand disease states and morphological changes occurring in development.
Collapse
Affiliation(s)
- Xiaoguang Li
- Department of Cell Biology and Center for Cell Dynamics, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA; Department of Biological Chemistry, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Yuchuan Miao
- Department of Cell Biology and Center for Cell Dynamics, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA; Department of Biological Chemistry, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Dhiman Sankar Pal
- Department of Cell Biology and Center for Cell Dynamics, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA
| | - Peter N Devreotes
- Department of Cell Biology and Center for Cell Dynamics, School of Medicine, Johns Hopkins University, Baltimore, MD 21205, USA.
| |
Collapse
|
3
|
Abstract
Cardiac neural crest cells (NCCs) are a transient, migratory cell population exclusive to vertebrate embryos. Ablation, transplantation, and lineage-tracing experiments in chick and mouse have demonstrated their essential role in the remodeling of the initially bilateral and symmetric pharyngeal artery pairs into an aortic arch and for the septation of the cardiac outflow tract into the base of the pulmonary artery and aorta. Accordingly, defective cardiac NCC function is a common cause of congenital birth defects. Here, we review our current understanding of cardiac NCC-mediated vascular remodeling and signaling pathways important for this process. We additionally discuss their contribution to the cardiac valves as well as the still contentious role of cardiac NCCs in the development of the myocardium and conductive system of the heart.
Collapse
Affiliation(s)
- Alice Plein
- UCL Institute of Ophthalmology, University College London, London, United Kingdom
| | - Alessandro Fantin
- UCL Institute of Ophthalmology, University College London, London, United Kingdom
| | - Christiana Ruhrberg
- UCL Institute of Ophthalmology, University College London, London, United Kingdom.
| |
Collapse
|
4
|
Zhao Z. TGFβ and Wnt in cardiac outflow tract defects in offspring of diabetic pregnancies. ACTA ACUST UNITED AC 2014; 101:364-70. [PMID: 25231192 DOI: 10.1002/bdrb.21120] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 07/29/2014] [Indexed: 01/09/2023]
Abstract
BACKGROUND Diabetes mellitus in pregnancy causes defects in infant heart, including the outflow tracts (OFTs). Development of the aorta and pulmonary artery, which are derived from the common OFT in the embryo, is regulated by the transforming growth factor β (TGFβ) and Wnt families, and can be perturbed by hyperglycemia-generated intracellular stress conditions. However, the underlying cellular and molecular mechanisms remain to be delineated. METHODS Female mice were induced diabetic with streptozotocin. Embryonic and fetal OFTs were examined morphologically and histologically. Cell proliferation was assessed using 5'-bromo-2'-deoxyuridine incorporation assay. Oxidative and endoplasmic reticulum (ER) stress markers and TGFβ factors were detected using immunohistochemistry. The expression of genes in the Wnt-signaling system was assessed using real-time reverse transcription polymerase chain reaction array. The role of activin-A in cell proliferation was addressed by treating embryos cultured in high glucose with activin-A. RESULTS Maternal diabetes caused complex abnormalities in the OFTs, including aortic and pulmonary stenosis and persistent truncus arteriosus. The development of the endocardial cushions was suppressed, manifested with insufficient cellularization of the tissues. Cell proliferation was significantly decreased under oxidative and ER stress conditions. The expression of genes in the Wnt signaling was significantly altered. Activin-A and Smad3 were found to be expressed in the OFT. Treatment with activin-A rescued cell proliferation in the endocardial cushions. CONCLUSIONS Maternal diabetes generates oxidative and ER stress conditions, suppresses TGFβ and Wnt signaling, inhibits cell proliferation and cellularization of the endocardial cushions, leading to OFT septal defects. Activin-A plays a role in hyperglycemia-suppressed proliferation of the endocardial cells.
Collapse
Affiliation(s)
- Zhiyong Zhao
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Maryland School of Medicine, Baltimore, Maryland
| |
Collapse
|
5
|
Pan Y, Carbe C, Kupich S, Pickhinke U, Ohlig S, Frye M, Seelige R, Pallerla SR, Moon AM, Lawrence R, Esko JD, Zhang X, Grobe K. Heparan sulfate expression in the neural crest is essential for mouse cardiogenesis. Matrix Biol 2013; 35:253-65. [PMID: 24200809 DOI: 10.1016/j.matbio.2013.10.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 10/26/2013] [Accepted: 10/26/2013] [Indexed: 11/16/2022]
Abstract
Impaired heparan sulfate (HS) synthesis in vertebrate development causes complex malformations due to the functional disruption of multiple HS-binding growth factors and morphogens. Here, we report developmental heart defects in mice bearing a targeted disruption of the HS-generating enzyme GlcNAc N-deacetylase/GlcN N-sulfotransferase 1 (NDST1), including ventricular septal defects (VSD), persistent truncus arteriosus (PTA), double outlet right ventricle (DORV), and retroesophageal right subclavian artery (RERSC). These defects closely resemble cardiac anomalies observed in mice made deficient in the cardiogenic regulator fibroblast growth factor 8 (FGF8). Consistent with this, we show that HS-dependent FGF8/FGF-receptor2C assembly and FGF8-dependent ERK-phosphorylation are strongly reduced in NDST1(-/-) embryonic cells and tissues. Moreover, WNT1-Cre/LoxP-mediated conditional targeting of NDST function in neural crest cells (NCCs) revealed that their impaired HS-dependent development contributes strongly to the observed cardiac defects. These findings raise the possibility that defects in HS biosynthesis may contribute to congenital heart defects in humans that represent the most common type of birth defect.
Collapse
Affiliation(s)
- Yi Pan
- Institute of Nutritional Science, Chinese Academy of Sciences, Shanghai 200031, China
| | - Christian Carbe
- Department of Medical and Molecular Genetics, Indiana University of Medicine, Indianapolis, IN 46202, USA
| | - Sabine Kupich
- Institut für Physiologische Chemie und Pathobiochemie, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - Ute Pickhinke
- Institut für Physiologische Chemie und Pathobiochemie, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - Stefanie Ohlig
- Institut für Physiologische Chemie und Pathobiochemie, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany; Institut für Molekulare Zellbiologie, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - Maike Frye
- Institut für Molekulare Zellbiologie, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - Ruth Seelige
- Institut für Molekulare Zellbiologie, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - Srinivas R Pallerla
- Institut für Molekulare Zellbiologie, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany
| | - Anne M Moon
- Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, UT 84112, USA; Department of Neurobiology and Anatomy, University of Utah School of Medicine, Salt Lake City, UT 84112, USA; Department of Human Genetics, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Roger Lawrence
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093-0687, USA
| | - Jeffrey D Esko
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093-0687, USA
| | - Xin Zhang
- Department of Medical and Molecular Genetics, Indiana University of Medicine, Indianapolis, IN 46202, USA
| | - Kay Grobe
- Institut für Physiologische Chemie und Pathobiochemie, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany; Institut für Molekulare Zellbiologie, Westfälische Wilhelms-Universität Münster, D-48149 Münster, Germany.
| |
Collapse
|
6
|
Mayanil CS, Ichi S, Farnell BM, Boshnjaku V, Tomita T, McLone DG. Maternal intake of folic acid and neural crest stem cells. VITAMINS AND HORMONES 2011; 87:143-73. [PMID: 22127242 DOI: 10.1016/b978-0-12-386015-6.00028-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Maternal folic acid (FA) intake has beneficial effects in preventing neural tube defects and may also play a role in the prevention of adult onset diseases such as Alzheimer's disease, dementia, neuropsychiatric disorders, cardiovascular diseases, and cerebral ischemia. This review will focus on the effects of maternal FA intake on neural crest stem cell proliferation and differentiation. Although FA is generally considered beneficial, it has the potential of promoting cell proliferation at the expense of differentiation. In some situations, this may lead to miscarriage or postnatal developmental abnormalities. Therefore, a blind approach such as "FA for everyone" is not necessarily the best course of action. Ultimately, the best approach for FA supplementation, and potentially other nutritional supplements, will include customized patient genomic profiles for determining dose and duration.
Collapse
Affiliation(s)
- Chandra S Mayanil
- Developmental Biology Program, Children's Memorial Research Center, Department of Pediatric Neurosurgery, Children's Memorial Medical Center and Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | | | | | | | | | | |
Collapse
|
7
|
Jain R, Engleka KA, Rentschler SL, Manderfield LJ, Li L, Yuan L, Epstein JA. Cardiac neural crest orchestrates remodeling and functional maturation of mouse semilunar valves. J Clin Invest 2010; 121:422-30. [PMID: 21157040 DOI: 10.1172/jci44244] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2010] [Accepted: 11/01/2010] [Indexed: 11/17/2022] Open
Abstract
Congenital anomalies of the aortic valve are common and are associated with progressive valvular insufficiency and/or stenosis. In addition, aneurysm, coarctation, and dissection of the ascending aorta and aortic arch are often associated conditions that complicate patient management and increase morbidity and mortality. These associated aortopathies are commonly attributed to turbulent hemodynamic flow through the malformed valve leading to focal defects in the vessel wall. However, numerous surgical and pathological studies have identified widespread cystic medial necrosis and smooth muscle apoptosis throughout the aortic arch in affected patients. Here, we provide experimental evidence for an alternative model to explain the association of aortic vessel and valvular disease. Using mice with primary and secondary cardiac neural crest deficiencies, we have shown that neural crest contribution to the outflow endocardial cushions (the precursors of the semilunar valves) is required for late gestation valvular remodeling, mesenchymal apoptosis, and proper valve architecture. Neural crest was also shown to contribute to the smooth muscle layer of the wall of the ascending aorta and aortic arch. Hence, defects of cardiac neural crest can result in functionally abnormal semilunar valves and concomitant aortic arch artery abnormalities.
Collapse
Affiliation(s)
- Rajan Jain
- Department of Cell and Developmental Biology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA
| | | | | | | | | | | | | |
Collapse
|
8
|
Rai R, Wong CCL, Xu T, Leu NA, Dong DW, Guo C, McLaughlin KJ, Yates JR, Kashina A. Arginyltransferase regulates alpha cardiac actin function, myofibril formation and contractility during heart development. Development 2008; 135:3881-9. [PMID: 18948421 DOI: 10.1242/dev.022723] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Post-translational arginylation mediated by arginyltransferase (Ate1) is essential for cardiovascular development and angiogenesis in mammals and directly affects myocardium structure in the developing heart. We recently showed that arginylation exerts a number of intracellular effects by modifying proteins involved in the functioning of the actin cytoskeleton and in cell motility. Here, we investigated the role of arginylation in the development and function of cardiac myocytes and their actin-containing structures during embryogenesis. Biochemical and mass spectrometry analyses showed that alpha cardiac actin undergoes arginylation at four sites during development. Ultrastructural analysis of the myofibrils in wild-type and Ate1 knockout mouse hearts showed that the absence of arginylation results in defects in myofibril structure that delay their development and affect the continuity of myofibrils throughout the heart, predicting defects in cardiac contractility. Comparison of cardiac myocytes derived from wild-type and Ate1 knockout mouse embryos revealed that the absence of arginylation results in abnormal beating patterns. Our results demonstrate cell-autonomous cardiac myocyte defects in arginylation knockout mice that lead to severe congenital abnormalities similar to those observed in human disease, and outline a new function of arginylation in the regulation of the actin cytoskeleton in cardiac myocytes.
Collapse
Affiliation(s)
- Reena Rai
- Department of Animal Biology and School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
9
|
Zhang Y, Singh MK, Degenhardt KR, Lu MM, Bennett J, Yoshida Y, Epstein JA. Tie2Cre-mediated inactivation of plexinD1 results in congenital heart, vascular and skeletal defects. Dev Biol 2008; 325:82-93. [PMID: 18992737 DOI: 10.1016/j.ydbio.2008.09.031] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2008] [Revised: 09/09/2008] [Accepted: 09/24/2008] [Indexed: 02/06/2023]
Abstract
PlexinD1 is a membrane-bound receptor that mediates signals derived from class 3 secreted semaphorins. Although semaphorin signaling in axon guidance in the nervous system has been extensively studied, functions outside the nervous system including important roles in vascular patterning have also been demonstrated. Inactivation of plexinD1 leads to neo-natal lethality, structural defects of the cardiac outflow tract, peripheral vascular abnormalities, and axial skeletal morphogenesis defects. PlexinD1 is expressed by vascular endothelial cells, but additional domains of expression have also been demonstrated including in lymphocytes, osteoblasts, neural crest and the central nervous system. Hence, the cell-type specific functions of plexinD1 have remained unclear. Here, we describe the results of tissue-specific gene inactivation of plexinD1 in Tie2 expressing precursors, which recapitulates the null phenotype with respect to congenital heart, vascular, and skeletal abnormalities resulting in neonatal lethality. Interestingly, these mutants also have myocardial defects not previously reported. In addition, we demonstrate functions for plexinD1 in post-natal retinal vasculogenesis and adult angiogenesis through the use of inducible cre-mediated deletion. These results demonstrate an important role for PlexinD1 in embryonic and adult vasculature.
Collapse
Affiliation(s)
- Ying Zhang
- Department of Cell and Developmental Biology, Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA 19104, USA
| | | | | | | | | | | | | |
Collapse
|
10
|
Abstract
Cell migration is an evolutionarily conserved mechanism that underlies the development and functioning of uni- and multicellular organisms and takes place in normal and pathogenic processes, including various events of embryogenesis, wound healing, immune response, cancer metastases, and angiogenesis. Despite the differences in the cell types that take part in different migratory events, it is believed that all of these migrations occur by similar molecular mechanisms, whose major components have been functionally conserved in evolution and whose perturbation leads to severe developmental defects. These mechanisms involve intricate cytoskeleton-based molecular machines that can sense the environment, respond to signals, and modulate the entire cell behavior. A big question that has concerned the researchers for decades relates to the coordination of cell migration in situ and its relation to the intracellular aspects of the cell migratory mechanisms. Traditionally, this question has been addressed by researchers that considered the intra- and extracellular mechanisms driving migration in separate sets of studies. As more data accumulate researchers are now able to integrate all of the available information and consider the intracellular mechanisms of cell migration in the context of the developing organisms that contain additional levels of complexity provided by extracellular regulation. This review provides a broad summary of the existing and emerging data in the cell and developmental biology fields regarding cell migration during development.
Collapse
Affiliation(s)
- Satoshi Kurosaka
- Department of Animal Biology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | | |
Collapse
|
11
|
Lee G, Kim H, Elkabetz Y, Al Shamy G, Panagiotakos G, Barberi T, Tabar V, Studer L. Isolation and directed differentiation of neural crest stem cells derived from human embryonic stem cells. Nat Biotechnol 2007; 25:1468-75. [PMID: 18037878 DOI: 10.1038/nbt1365] [Citation(s) in RCA: 397] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2007] [Accepted: 11/08/2007] [Indexed: 02/07/2023]
Abstract
Vertebrate neural crest development depends on pluripotent, migratory precursor cells. Although avian and murine neural crest stem (NCS) cells have been identified, the isolation of human NCS cells has remained elusive. Here we report the derivation of NCS cells from human embryonic stem cells at the neural rosette stage. We show that NCS cells plated at clonal density give rise to multiple neural crest lineages. The human NCS cells can be propagated in vitro and directed toward peripheral nervous system lineages (peripheral neurons, Schwann cells) and mesenchymal lineages (smooth muscle, adipogenic, osteogenic and chondrogenic cells). Transplantation of human NCS cells into the developing chick embryo and adult mouse hosts demonstrates survival, migration and differentiation compatible with neural crest identity. The availability of unlimited numbers of human NCS cells offers new opportunities for studies of neural crest development and for efforts to model and treat neural crest-related disorders.
Collapse
Affiliation(s)
- Gabsang Lee
- Developmental Biology Program, Sloan-Kettering Institute, 1275 York Ave., New York, New York 10021, USA
| | | | | | | | | | | | | | | |
Collapse
|
12
|
Yamada T, Ohtani S, Sakurai T, Tsuji T, Kunieda T, Yanagisawa M. Reduced expression of the endothelin receptor type B gene in piebald mice caused by insertion of a retroposon-like element in intron 1. J Biol Chem 2006; 281:10799-807. [PMID: 16500897 DOI: 10.1074/jbc.m512618200] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Mice carrying the piebald mutation exhibit white coat spotting due to the regional absence of neural crest-derived melanocytes. We reported previously that the piebald locus encodes the Ednrb gene and that piebald mice express low levels of structurally intact Ednrb mRNA and EDNRB protein (Hosoda, K., Hammer, R. E., Richardson, J. A., Baynash, A. G., Cheung, J. C., Giaid, A., and Yanagisawa, M. (1994) Cell 79, 1267-1276). Here, we report that both the life span of the Ednrb mRNA and the promoter activity of the Ednrb gene are indistinguishable between wild-type and piebald mice. Introns 2-6 of the Ednrb gene in piebald mice were correctly excised with an efficiency indistinguishable from those in wild-type mice in exon trapping experiments. We found that the piebald allele of the Ednrb gene has a 5.5-kb retroposon-like element in intron 1 possessing canonical sequences of a polyadenylation signal and a splice acceptor site. Abnormal hybrid transcripts carrying exon 1 of the Ednrb gene and a portion of the 5.5-kb element are expressed in piebald mice. The insertion of the 5.5-kb element into a heterologous intron in a mammalian expression vector markedly reduced the expression of the reporter gene. Premature termination and aberrant splicing of the Ednrb transcript caused by the retroposon-like element in intron 1 lead to a reduced level of the normal Ednrb transcript, which is responsible for the partial loss-of-function phenotype of piebald mice.
Collapse
MESH Headings
- Alleles
- Alternative Splicing
- Animals
- Base Sequence
- Blotting, Northern
- COS Cells
- Cell Line, Tumor
- Chlorocebus aethiops
- DNA, Complementary/metabolism
- Exons
- Gene Expression Regulation
- Genes, Reporter
- Genetic Vectors
- Introns
- Luciferases/metabolism
- Mice
- Mice, Inbred C57BL
- Mice, Mutant Strains
- Models, Genetic
- Molecular Sequence Data
- Phenotype
- Plasmids/metabolism
- RNA, Messenger/metabolism
- Rats
- Receptor, Endothelin B/biosynthesis
- Receptor, Endothelin B/genetics
- Retroelements
- Reverse Transcriptase Polymerase Chain Reaction
- Tissue Distribution
- Transfection
Collapse
Affiliation(s)
- Takahisa Yamada
- Howard Hughes Medical Institute and the Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, Texas 75390-9050, USA.
| | | | | | | | | | | |
Collapse
|
13
|
Epstein JA, Parmacek MS. Recent advances in cardiac development with therapeutic implications for adult cardiovascular disease. Circulation 2006; 112:592-7. [PMID: 16043659 DOI: 10.1161/circulationaha.104.479857] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Jonathan A Epstein
- Molecular Cardiology Research Center, Penn Cardiovascular Institute, University of Pennsylvania Health System, Philadelphia, USA.
| | | |
Collapse
|
14
|
Washington Smoak I, Byrd NA, Abu-Issa R, Goddeeris MM, Anderson R, Morris J, Yamamura K, Klingensmith J, Meyers EN. Sonic hedgehog is required for cardiac outflow tract and neural crest cell development. Dev Biol 2005; 283:357-72. [PMID: 15936751 DOI: 10.1016/j.ydbio.2005.04.029] [Citation(s) in RCA: 159] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2004] [Revised: 04/05/2005] [Accepted: 04/15/2005] [Indexed: 11/26/2022]
Abstract
The Hedgehog signaling pathway is critical for a significant number of developmental patterning events. In this study, we focus on the defects in pharyngeal arch and cardiovascular patterning present in Sonic hedgehog (Shh) null mouse embryos. Our data indicate that, in the absence of Shh, there is general failure of the pharyngeal arch development leading to cardiac and craniofacial defects. The cardiac phenotype results from arch artery and outflow tract patterning defects, as well as abnormal development of migratory neural crest cells (NCCs). The constellation of cardiovascular defects resembles a severe form of the human birth defect syndrome tetralogy of Fallot with complete pulmonary artery atresia. Previous studies have demonstrated a role for Shh in NCC survival and proliferation at later stages of development. Our data suggest that SHH signaling does not act directly on NCCs as a survival factor, but rather acts to restrict the domains that NCCs can populate during early stages (e8.5-10.5) of cardiovascular and craniofacial development.
Collapse
|