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Pally D, Kapoor N, Naba A. The novel ECM protein SNED1 mediates cell adhesion via α5β1 integrin. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.08.07.606706. [PMID: 39149327 PMCID: PMC11326288 DOI: 10.1101/2024.08.07.606706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
The extracellular matrix (ECM) is a complex meshwork comprising over 100 proteins. It serves as an adhesive substrate for cells and, hence, plays critical roles in health and disease. We have recently identified a novel ECM protein, SNED1, and have found that it is required for neural crest cell migration and craniofacial morphogenesis during development and in breast cancer, where it is necessary for the metastatic dissemination of tumor cells. Interestingly, both processes involve the dynamic remodeling of cell-ECM adhesions via cell surface receptors. Sequence analysis revealed that SNED1 contains two amino acid motifs, RGD and LDV, known to bind integrins, the largest class of ECM receptors. We thus sought to investigate the role of SNED1 in cell adhesion. Here, we report that SNED1 mediates breast cancer and neural crest cell adhesion via its RGD motif. We further demonstrate that cell adhesion to SNED1 is mediated by α5β1integrin. These findings are a first step toward identifying the signaling pathways activated downstream of the SNED1-integrin interactions guiding craniofacial morphogenesis and breast cancer metastasis.
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Affiliation(s)
- Dharma Pally
- Department of Physiology and Biophysics, University of Illinois Chicago, Illinois, 60612, USA
| | - Nandini Kapoor
- Department of Physiology and Biophysics, University of Illinois Chicago, Illinois, 60612, USA
| | - Alexandra Naba
- Department of Physiology and Biophysics, University of Illinois Chicago, Illinois, 60612, USA
- University of Illinois Cancer Center, Chicago, Illinois, 60612, USA
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2
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Yang R, Fu Y, Li C, Chen Y, He A, Jiang X, Ma J, Zhang T. Profiling of Long Non-Coding RNAs in Auricular Cartilage of Patients with Isolated Microtia. Genet Test Mol Biomarkers 2024; 28:50-58. [PMID: 38416666 DOI: 10.1089/gtmb.2023.0360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2024] Open
Abstract
Introduction: Microtia is the second most common maxillofacial birth defect worldwide. However, the involvement of long non-coding RNAs (lncRNAs) in isolated microtia is not well understood. This study aimed at identifying lncRNAs that regulate the expression of genes associated with isolated microtia. Methods: We used our microarray data to analyze the expression pattern of lncRNA in the auricular cartilage tissues from 10 patients diagnosed with isolated microtia, alongside 15 control subjects. Five lncRNAs were chosen for validation using real-time quantitative reverse transcription-polymerase chain reaction (qRT-PCR). Results: We identified 4651 differentially expressed lncRNAs in the auricular cartilage from patients with isolated microtia. By Gene Ontology/Kyoto Encyclopedia of Genes and Genomes pathway (GO/KEGG) analysis, we identified 27 differentially expressed genes enriched in pathways associated with microtia. In addition, we predicted 9 differentially expressed genes as potential cis-acting targets of 12 differentially expressed lncRNAs. Our findings by qRT-PCR demonstrate significantly elevated expression levels of ZFAS1 and DAB1-AS1, whereas ADIRF-AS1, HOTAIRM1, and EPB41L4A-AS1 exhibited significantly reduced expression levels in the auricular cartilage tissues of patients with isolated microtia. Conclusions: Our study sheds light on the potential involvement of lncRNAs in microtia and provides a basis for further investigation into their functional roles and underlying mechanisms.
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Affiliation(s)
- Run Yang
- Department of Facial Plastic and Reconstructive Surgery, ENT Institute, Eye & ENT Hospital of Fudan University, Shanghai, China
| | - Yaoyao Fu
- Department of Facial Plastic and Reconstructive Surgery, ENT Institute, Eye & ENT Hospital of Fudan University, Shanghai, China
| | - Chenlong Li
- Department of Facial Plastic and Reconstructive Surgery, ENT Institute, Eye & ENT Hospital of Fudan University, Shanghai, China
| | - Yin Chen
- Department of Facial Plastic and Reconstructive Surgery, ENT Institute, Eye & ENT Hospital of Fudan University, Shanghai, China
| | - Aijuan He
- Department of Facial Plastic and Reconstructive Surgery, ENT Institute, Eye & ENT Hospital of Fudan University, Shanghai, China
| | - Xin Jiang
- Medical Laboratory of Nantong Zhongke, Department of Bioinformatics, Nantong, Jiangsu, China
| | - Jing Ma
- Department of Facial Plastic and Reconstructive Surgery, ENT Institute, Eye & ENT Hospital of Fudan University, Shanghai, China
| | - Tianyu Zhang
- Department of Facial Plastic and Reconstructive Surgery, ENT Institute, Eye & ENT Hospital of Fudan University, Shanghai, China
- NHC Key Laboratory of Hearing Medicine, Fudan University, Shanghai, China
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3
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Mahomed A, Girn D, Pattani A, Wells BK, King CC, Patel S, Kaur H, Noravian CM, Sieminski J, Pham C, Dante H, Ezin M, Elul T. Cannabinoid receptor type 1 regulates sequential stages of migration and morphogenesis of neural crest cells and derivatives in chicken and frog embryos. J Morphol 2023; 284:e21606. [PMID: 37313768 DOI: 10.1002/jmor.21606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 05/04/2023] [Accepted: 05/24/2023] [Indexed: 06/15/2023]
Abstract
The main cannabinoid receptor CB1R first shows expression during early neurula stage in chicken (Gallus gallus) embryos, and at early tailbud stage in the frog (Xenopus laevis) embryos. This raises the question of whether CB1R regulates similar or distinct processes during the embryonic development of these two species. Here, we examined whether CB1R influences the migration and morphogenesis of neural crest cells and derivatives in both chicken and frog embryos. Early neurula stage chicken embryos were exposed to arachidonyl-2'-chloroethylamide (ACEA; a CB1R agonist), N-(Piperidin-1-yl)-5-(4-iodophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxamide (AM251; a CB1R inverse agonist) or Blebbistatin (nonmuscle Myosin II inhibitor) in ovo and examined during migration of neural crest cells and at condensing cranial ganglia stage. Early tailbud stage frog embryos were bathed in ACEA, AM251 or Blebbistatin, and analyzed at late tailbud stage for changes in craniofacial and eye morphogenesis, and in patterning and morphology of melanophores (neural crest-derived pigment cells). In chicken embryos exposed to ACEA and Myosin II inhibitor, cranial neural crest cells migrated erratically from the neural tube, and the right, but not the left, ophthalmic nerve of the trigeminal ganglia was affected in ACEA- and AM251-treated embryos. In frog embryos with inactivation or activation of CB1R, or inhibition of Myosin II, the craniofacial and eye regions were smaller and/or less developed, and the melanophores overlying the posterior midbrain were more dense, and stellate in morphology, than the same tissues and cells in control embryos. This data suggests that despite differences in the time of onset of expression, normal activity of CB1R is required for sequential steps in migration and morphogenesis of neural crest cells and derivatives in both chicken and frog embryos. In addition, CB1R may signal through Myosin II to regulate migration and morphogenesis of neural crest cells and derivatives in chicken and frog embryos.
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Affiliation(s)
- Amira Mahomed
- Department of Biology, Loyola Marymount University, Los Angeles, California, USA
| | - Daljit Girn
- Foundational Biomedical Sciences Department, College of Osteopathic Medicine, Touro University California, Vallejo, California, USA
| | - Afrin Pattani
- Foundational Biomedical Sciences Department, College of Osteopathic Medicine, Touro University California, Vallejo, California, USA
| | - Brian K Wells
- Department of Biology, Loyola Marymount University, Los Angeles, California, USA
| | - Chloe C King
- Department of Biology, Loyola Marymount University, Los Angeles, California, USA
| | - Sonya Patel
- Foundational Biomedical Sciences Department, College of Osteopathic Medicine, Touro University California, Vallejo, California, USA
| | - Harsimran Kaur
- Foundational Biomedical Sciences Department, College of Osteopathic Medicine, Touro University California, Vallejo, California, USA
| | - Christina M Noravian
- Department of Biology, Loyola Marymount University, Los Angeles, California, USA
| | - Jessica Sieminski
- Foundational Biomedical Sciences Department, College of Osteopathic Medicine, Touro University California, Vallejo, California, USA
| | - Chi Pham
- Foundational Biomedical Sciences Department, College of Osteopathic Medicine, Touro University California, Vallejo, California, USA
| | - Halley Dante
- Department of Biology, Loyola Marymount University, Los Angeles, California, USA
| | - Max Ezin
- Department of Biology, Loyola Marymount University, Los Angeles, California, USA
| | - Tamira Elul
- Foundational Biomedical Sciences Department, College of Osteopathic Medicine, Touro University California, Vallejo, California, USA
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4
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Fitriasari S, Trainor PA. Gene-environment interactions in the pathogenesis of common craniofacial anomalies. Curr Top Dev Biol 2022; 152:139-168. [PMID: 36707210 DOI: 10.1016/bs.ctdb.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Craniofacial anomalies often exhibit phenotype variability and non-mendelian inheritance due to their multifactorial origin, involving both genetic and environmental factors. A combination of epidemiologic studies, genome-wide association, and analysis of animal models have provided insight into the effects of gene-environment interactions on craniofacial and brain development and the pathogenesis of congenital disorders. In this chapter, we briefly summarize the etiology and pathogenesis of common craniofacial anomalies, focusing on orofacial clefts, hemifacial microsomia, and microcephaly. We then discuss how environmental risk factors interact with genes to modulate the incidence and phenotype severity of craniofacial anomalies. Identifying environmental risk factors and dissecting their interaction with different genes and modifiers is central to improved strategies for preventing craniofacial anomalies.
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Affiliation(s)
| | - Paul A Trainor
- Stowers Institute for Medical Research, Kansas City, MO, United States; Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS, United States.
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5
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Williams AL, Bohnsack BL. Zebrafish Model of Stickler Syndrome Suggests a Role for Col2a1a in the Neural Crest during Early Eye Development. J Dev Biol 2022; 10:jdb10040042. [PMID: 36278547 PMCID: PMC9589970 DOI: 10.3390/jdb10040042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 09/21/2022] [Accepted: 09/27/2022] [Indexed: 11/16/2022] Open
Abstract
Most cases of Stickler syndrome are due to autosomal-dominant COL2A1 gene mutations leading to abnormal type II collagen. Ocular findings include axial eye lengthening with vitreal degeneration and early-onset glaucoma, which can result in vision loss. Although COL2A1 is a major player in cartilage and bone formation, its specific role in eye development remains elusive. We investigated the role of Col2a1a in neural crest migration and differentiation during early zebrafish eye development. In situ hybridization, immunofluorescence, live imaging, exogenous treatments [10 μM diethylaminobenzaldehyde (DEAB), 100 nM all-trans retinoic acid (RA) and 1-3% ethanol (ETOH)] and morpholino oligonucleotide (MO) injections were used to analyze wildtype Casper (roy-/-;nacre-/-), TgBAC(col2a1a::EGFP), Tg(sox10::EGFP) and Tg(foxd3::EGFP) embryos. Col2a1a colocalized with Foxd3- and Sox10-positive cells in the anterior segment and neural crest-derived jaw. Col2a1a expression was regulated by RA and inhibited by 3% ETOH. Furthermore, MO knockdown of Col2a1a delayed jaw formation and disrupted the ocular anterior segment neural crest migration of Sox10-positive cells. Interestingly, human COL2A1 protein rescued the MO effects. Altogether, these results suggest that Col2a1a is a downstream target of RA in the cranial neural crest and is required for both craniofacial and eye development.
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Affiliation(s)
- Antionette L. Williams
- Division of Ophthalmology, Ann & Robert H. Lurie Children’s Hospital of Chicago, 225 E. Chicago Ave., Chicago, IL 60611, USA
- Department of Ophthalmology, Northwestern University Feinberg School of Medicine, 645 N. Michigan Ave., Chicago, IL 60611, USA
- Correspondence: (A.L.W.); (B.L.B.); Tel.: +1-312-503-4706 (A.L.W.); +1-312-227-6180 (B.L.B.)
| | - Brenda L. Bohnsack
- Division of Ophthalmology, Ann & Robert H. Lurie Children’s Hospital of Chicago, 225 E. Chicago Ave., Chicago, IL 60611, USA
- Department of Ophthalmology, Northwestern University Feinberg School of Medicine, 645 N. Michigan Ave., Chicago, IL 60611, USA
- Correspondence: (A.L.W.); (B.L.B.); Tel.: +1-312-503-4706 (A.L.W.); +1-312-227-6180 (B.L.B.)
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6
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Leask M, Carleton C, Leeke B, Newman T, Antoun J, Farella M, Horsfield J. Riboceine Rescues Auranofin-Induced Craniofacial Defects in Zebrafish. Antioxidants (Basel) 2021; 10:antiox10121964. [PMID: 34943067 PMCID: PMC8750187 DOI: 10.3390/antiox10121964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/04/2021] [Accepted: 12/06/2021] [Indexed: 11/24/2022] Open
Abstract
Craniofacial abnormalities are a common group of congenital developmental disorders that can require intensive oral surgery as part of their treatment. Neural crest cells (NCCs) contribute to the facial structures; however, they are extremely sensitive to high levels of oxidative stress, which result in craniofacial abnormalities under perturbed developmental environments. The oxidative stress-inducing compound auranofin (AFN) disrupts craniofacial development in wildtype zebrafish embryos. Here, we tested whether the antioxidant Riboceine (RBC) rescues craniofacial defects arising from exposure to AFN. RBC rescued AFN-induced cellular apoptosis and distinct defects of the cranial cartilage in zebrafish larvae. Zebrafish embryos exposed to AFN have higher expression of antioxidant genes gstp1 and prxd1, with RBC treatment partially rescuing these gene expression profiles. Our data suggest that antioxidants may have utility in preventing defects in the craniofacial cartilage owing to environmental or genetic risk, perhaps by enhancing cell survival.
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Affiliation(s)
- Megan Leask
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin 9016, New Zealand; (M.L.); (C.C.); (B.L.); (T.N.)
- Maurice Wilkins Centre for Molecular Biodiscovery, Private Bag 92019, The University of Auckland, Auckland 1010, New Zealand; (J.A.); (M.F.)
| | - Catherine Carleton
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin 9016, New Zealand; (M.L.); (C.C.); (B.L.); (T.N.)
- Department of Oral Sciences, Sir John Walsh Research Institute, University of Otago, Dunedin 9016, New Zealand
| | - Bryony Leeke
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin 9016, New Zealand; (M.L.); (C.C.); (B.L.); (T.N.)
| | - Trent Newman
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin 9016, New Zealand; (M.L.); (C.C.); (B.L.); (T.N.)
| | - Joseph Antoun
- Maurice Wilkins Centre for Molecular Biodiscovery, Private Bag 92019, The University of Auckland, Auckland 1010, New Zealand; (J.A.); (M.F.)
- Department of Oral Sciences, Sir John Walsh Research Institute, University of Otago, Dunedin 9016, New Zealand
| | - Mauro Farella
- Maurice Wilkins Centre for Molecular Biodiscovery, Private Bag 92019, The University of Auckland, Auckland 1010, New Zealand; (J.A.); (M.F.)
- Department of Oral Sciences, Sir John Walsh Research Institute, University of Otago, Dunedin 9016, New Zealand
| | - Julia Horsfield
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin 9016, New Zealand; (M.L.); (C.C.); (B.L.); (T.N.)
- Maurice Wilkins Centre for Molecular Biodiscovery, Private Bag 92019, The University of Auckland, Auckland 1010, New Zealand; (J.A.); (M.F.)
- Genetics Otago Research Centre, University of Otago, Dunedin 9016, New Zealand
- Correspondence:
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Roth DM, Bayona F, Baddam P, Graf D. Craniofacial Development: Neural Crest in Molecular Embryology. Head Neck Pathol 2021; 15:1-15. [PMID: 33723764 PMCID: PMC8010074 DOI: 10.1007/s12105-021-01301-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 02/02/2021] [Indexed: 12/22/2022]
Abstract
Craniofacial development, one of the most complex sequences of developmental events in embryology, features a uniquely transient, pluripotent stem cell-like population known as the neural crest (NC). Neural crest cells (NCCs) originate from the dorsal aspect of the neural tube and migrate along pre-determined routes into the developing branchial arches and frontonasal plate. The exceptional rates of proliferation and migration of NCCs enable their diverse contribution to a wide variety of craniofacial structures. Subsequent differentiation of these cells gives rise to cartilage, bones, and a number of mesenchymally-derived tissues. Deficiencies in any stage of differentiation can result in facial clefts and abnormalities associated with craniofacial syndromes. A small number of conserved signaling pathways are involved in controlling NC differentiation and craniofacial development. They are used in a reiterated fashion to help define precise temporospatial cell and tissue formation. Although many aspects of their cellular and molecular control have yet to be described, it is clear that together they form intricately integrated signaling networks required for spatial orientation and developmental stability and plasticity, which are hallmarks of craniofacial development. Mutations that affect the functions of these signaling pathways are often directly or indirectly identified in congenital syndromes. Clinical applications of NC-derived mesenchymal stem/progenitor cells, persistent into adulthood, hold great promise for tissue repair and regeneration. Realization of NCC potential for regenerative therapies motivates understanding of the intricacies of cell communication and differentiation that underlie the complexities of NC-derived tissues.
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Affiliation(s)
- Daniela Marta Roth
- School of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, 7020N Katz Group Centre for Pharmacy & Health Research, 11361-87 Avenue, Edmonton, Alberta, AB T6G 2E1 Canada
| | - Francy Bayona
- School of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, 7020N Katz Group Centre for Pharmacy & Health Research, 11361-87 Avenue, Edmonton, Alberta, AB T6G 2E1 Canada
| | - Pranidhi Baddam
- School of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, 7020N Katz Group Centre for Pharmacy & Health Research, 11361-87 Avenue, Edmonton, Alberta, AB T6G 2E1 Canada
| | - Daniel Graf
- Alberta Dental Association & College Chair for Oral Health Research, School of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, 7020N Katz Group Centre for Pharmacy & Health Research, 11361-87 Avenue, Edmonton, Alberta, AB T6G 2E1 Canada
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8
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Zhao N, Qin W, Wang D, Raquel AG, Yuan L, Mao Y, Ma C, Xiao Z, Ma J. MicroRNA-1 affects the development of the neural crest and craniofacial skeleton via the mitochondrial apoptosis pathway. Exp Ther Med 2021; 21:379. [PMID: 33680101 PMCID: PMC7918114 DOI: 10.3892/etm.2021.9810] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 07/17/2020] [Indexed: 01/01/2023] Open
Abstract
The neural crest is one of the key features of craniofacial development. MicroRNA-1 (miR-1) is a single-stranded noncoding RNA that serves an important role in embryonic development. However, the function of miR-1 in neural crest cells (NCCs) is unknown. Therefore, to evaluate the role of miR-1 in NCC development, a miR-1 mutant zebrafish was generated in the current study. Mouse NCCs were isolated from the first branchial arch of embryos at gestational day E9.5, and miR-1 was silenced using a miR-1 inhibitor. To the best of our knowledge, the present study was the first to report that homozygous zebrafish lacking miR-1 exhibited developmental defects in NCC-derived craniofacial bones, heart, melanocytes and iridophores. These defects may be caused by an increase in apoptosis of NCCs during their migration and differentiation in embryonic development. Moreover, the apoptosis analysis and western blotting results demonstrated that this effect was modulated via the mitochondrial apoptosis pathway, and miR-1 inhibited NCC apoptosis by modulating this pathway. These results collectively suggested that miR-1 in NCCs may be essential for craniofacial development.
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Affiliation(s)
- Na Zhao
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Wenhao Qin
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Dongyue Wang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Anakarina González Raquel
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Lichan Yuan
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Yelin Mao
- Department of Orthodontics, The Affiliated Stomatology Hospital of Suzhou Vocational Health College, Suzhou, Jiangsu 215002, P.R. China
| | - Changyan Ma
- Department of Medical Genetics, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Zhongdang Xiao
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing, Jiangsu 210096, P.R. China
| | - Junqing Ma
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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9
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Laplace-Builhé B, Bahraoui S, Jorgensen C, Djouad F. From the Basis of Epimorphic Regeneration to Enhanced Regenerative Therapies. Front Cell Dev Biol 2021; 8:605120. [PMID: 33585444 PMCID: PMC7873919 DOI: 10.3389/fcell.2020.605120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 12/14/2020] [Indexed: 01/01/2023] Open
Abstract
Current cell-based therapies to treat degenerative diseases such as osteoarthritis (OA) fail to offer long-term beneficial effects. The therapeutic effects provided by mesenchymal stem cell (MSC) injection, characterized by reduced pain and an improved functional activity in patients with knee OA, are reported at short-term follow-up since the improved outcomes plateau or, even worse, decline several months after MSC administration. This review tackles the limitations of MSC-based therapy for degenerative diseases and highlights the lessons learned from regenerative species to comprehend the coordination of molecular and cellular events critical for complex regeneration processes. We discuss how MSC injection generates a positive cascade of events resulting in a long-lasting systemic immune regulation with limited beneficial effects on tissue regeneration while in regenerative species fine-tuned inflammation is required for progenitor cell proliferation, differentiation, and regeneration. Finally, we stress the direct or indirect involvement of neural crest derived cells (NCC) in most if not all adult regenerative models studied so far. This review underlines the regenerative potential of NCC and the limitations of MSC-based therapy to open new avenues for the treatment of degenerative diseases such as OA.
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Affiliation(s)
| | | | - Christian Jorgensen
- IRMB, Univ Montpellier, INSERM, Montpellier, France.,CHU Montpellier, Montpellier, France
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10
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Sato TS, Handa A, Priya S, Watal P, Becker RM, Sato Y. Neurocristopathies: Enigmatic Appearances of Neural Crest Cell–derived Abnormalities. Radiographics 2019; 39:2085-2102. [DOI: 10.1148/rg.2019190086] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- T. Shawn Sato
- From the Department of Radiology, Stead Family Children’s Hospital, University of Iowa, University of Iowa Hospitals and Clinics, 200 Hawkins Dr, 3889 JPP, Iowa City, IA 52242
| | - Atsuhiko Handa
- From the Department of Radiology, Stead Family Children’s Hospital, University of Iowa, University of Iowa Hospitals and Clinics, 200 Hawkins Dr, 3889 JPP, Iowa City, IA 52242
| | - Sarv Priya
- From the Department of Radiology, Stead Family Children’s Hospital, University of Iowa, University of Iowa Hospitals and Clinics, 200 Hawkins Dr, 3889 JPP, Iowa City, IA 52242
| | - Pankaj Watal
- From the Department of Radiology, Stead Family Children’s Hospital, University of Iowa, University of Iowa Hospitals and Clinics, 200 Hawkins Dr, 3889 JPP, Iowa City, IA 52242
| | - Robert M. Becker
- From the Department of Radiology, Stead Family Children’s Hospital, University of Iowa, University of Iowa Hospitals and Clinics, 200 Hawkins Dr, 3889 JPP, Iowa City, IA 52242
| | - Yutaka Sato
- From the Department of Radiology, Stead Family Children’s Hospital, University of Iowa, University of Iowa Hospitals and Clinics, 200 Hawkins Dr, 3889 JPP, Iowa City, IA 52242
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11
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Zhang Y, Sun X, Han X, Sato H, Hirofuji Y, Masuda K. Protective effect of folic acid on vulnerability to oxidative stress in dental pulp stem cells of deciduous teeth from children with orofacial clefts. Biochem Biophys Res Commun 2019; 516:127-132. [DOI: 10.1016/j.bbrc.2019.06.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 06/07/2019] [Indexed: 02/06/2023]
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12
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Davidoff MS. The Pluripotent Microvascular Pericytes Are the Adult Stem Cells Even in the Testis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1122:235-267. [PMID: 30937872 DOI: 10.1007/978-3-030-11093-2_13] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The pericytes of the testis are part of the omnipresent population of pericytes in the vertebrate body and are the only true pluripotent adult stem cells able to produce structures typical for the tree primitive germ layers: ectoderm, mesoderm, and endoderm. They originate very early in the embryogenesis from the pluripotent epiblast. The pericytes become disseminated through the whole vertebrate organism by the growing and differentiating blood vessels where they remain in specialized periendothelial vascular niches as resting pluripotent adult stem cells for tissue generation, maintenance, repair, and regeneration. The pericytes are also the ancestors of the perivascular multipotent stromal cells (MSCs). The variable appearance of the pericytes and their progeny reflects the plasticity under the influence of their own epigenetic and the local environmental factors of the host organ. In the testis the pericytes are the ancestors of the neuroendocrine Leydig cells. After activation the pericytes start to proliferate, migrate, and build transit-amplifying cells that transdifferentiate into multipotent stromal cells. These represent progenitors for a number of different cell types in an organ. Finally, it becomes evident that the pericytes are a brilliant achievement of the biological nature aiming to supply every organ with an omnipresent population of pluripotent adult stem cells. Their fascinating features are prerequisites for future therapy concepts supporting cell systems of organs.
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Affiliation(s)
- Michail S Davidoff
- University Medical Center Hamburg-Eppendorf, Hamburg Museum of Medical History, Hamburg, Germany.
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13
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Nijhout HF, Best JA, Reed MC. Systems biology of robustness and homeostatic mechanisms. WILEY INTERDISCIPLINARY REVIEWS-SYSTEMS BIOLOGY AND MEDICINE 2018; 11:e1440. [DOI: 10.1002/wsbm.1440] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/30/2018] [Accepted: 09/21/2018] [Indexed: 12/30/2022]
Affiliation(s)
| | - Janet A. Best
- Department of Mathematics Ohio State University Columbus Ohio
| | - Michael C. Reed
- Department of Mathematics Duke University Durham North Carolina
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14
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Waddington JL, Katina S, O'Tuathaigh CMP, Bowman AW. Translational Genetic Modelling of 3D Craniofacial Dysmorphology: Elaborating the Facial Phenotype of Neurodevelopmental Disorders Through the "Prism" of Schizophrenia. Curr Behav Neurosci Rep 2017; 4:322-330. [PMID: 29201594 PMCID: PMC5694503 DOI: 10.1007/s40473-017-0136-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Purpose of Review In the context of human developmental conditions, we review the conceptualisation of schizophrenia as a neurodevelopmental disorder, the status of craniofacial dysmorphology as a clinically accessible index of brain dysmorphogenesis, the ability of genetically modified mouse models of craniofacial dysmorphology to inform on the underlying dysmorphogenic process and how geometric morphometric techniques in mutant mice can extend quantitative analysis. Recent Findings Mutant mice with disruption of neuregulin-1, a gene associated meta-analytically with risk for schizophrenia, constitute proof-of-concept studies of murine facial dysmorphology in a manner analogous to clinical studies in schizophrenia. Geometric morphometric techniques informed on the topography of facial dysmorphology and identified asymmetry therein. Summary Targeted disruption in mice of genes involved in individual components of developmental processes and analysis of resultant facial dysmorphology using geometric morphometrics can inform on mechanisms of dysmorphogenesis at levels of incisiveness not possible in human subjects.
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Affiliation(s)
- John L Waddington
- Molecular & Cellular Therapeutics, Royal College of Surgeons in Ireland, St. Stephen's Green, Dublin 2, Ireland.,Jiangsu Key Laboratory of Translational Research & Therapy for Neuro-Psychiatric-Disorders and Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123 China
| | - Stanislav Katina
- School of Mathematics and Statistics, University of Glasgow, Glasgow, G12 8QQ UK.,Institute of Mathematics and Statistics, Masaryk University, Brno, Czech Republic.,Institute of Normal and Pathological Physiology, Slovak Academy of Sciences, Bratislava, Slovakia
| | | | - Adrian W Bowman
- School of Mathematics and Statistics, University of Glasgow, Glasgow, G12 8QQ UK
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15
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Chen G, Ishan M, Yang J, Kishigami S, Fukuda T, Scott G, Ray MK, Sun C, Chen SY, Komatsu Y, Mishina Y, Liu HX. Specific and spatial labeling of P0-Cre versus Wnt1-Cre in cranial neural crest in early mouse embryos. Genesis 2017; 55. [PMID: 28371069 DOI: 10.1002/dvg.23034] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 03/22/2017] [Accepted: 03/22/2017] [Indexed: 01/02/2023]
Abstract
P0-Cre and Wnt1-Cre mouse lines have been widely used in combination with loxP-flanked mice to label and genetically modify neural crest (NC) cells and their derivatives. Wnt1-Cre has been regarded as the gold standard and there have been concerns about the specificity of P0-Cre because it is not clear about the timing and spatial distribution of the P0-Cre transgene in labeling NC cells at early embryonic stages. We re-visited P0-Cre and Wnt1-Cre models in the labeling of NC cells in early mouse embryos with a focus on cranial NC. We found that R26-lacZ Cre reporter responded to Cre activity more reliably than CAAG-lacZ Cre reporter during early embryogenesis. Cre immunosignals in P0-Cre and reporter (lacZ and RFP) activity in P0-Cre/R26-lacZ and P0-Cre/R26-RFP embryos was detected in the cranial NC and notochord regions in E8.0-9.5 (4-19 somites) embryos. P0-Cre transgene expression was observed in migrating NC cells and was more extensive in the forebrain and hindbrain but not apparent in the midbrain. Differences in the Cre distribution patterns of P0-Cre and Wnt1-Cre were profound in the midbrain and hindbrain regions, that is, extensive in the midbrain of Wnt1-Cre and in the hindbrain of P0-Cre embryos. The difference between P0-Cre and Wnt1-Cre in labeling cranial NC may provide a better explanation of the differential distributions of their NC derivatives and of the phenotypes caused by Cre-driven genetic modifications.
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Affiliation(s)
- Guiqian Chen
- Regenerative Bioscience Center, Department of Animal and Dairy Science, College of Agricultural and Environmental Sciences, University of Georgia, Athens, Georgia, 30602
| | - Mohamed Ishan
- Regenerative Bioscience Center, Department of Animal and Dairy Science, College of Agricultural and Environmental Sciences, University of Georgia, Athens, Georgia, 30602
| | - Jingwen Yang
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, Michigan, 48109
| | - Satoshi Kishigami
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, 27709
| | - Tomokazu Fukuda
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, 27709
| | - Greg Scott
- Knockout Core, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, 27709
| | - Manas K Ray
- Knockout Core, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, 27709
| | - Chenming Sun
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, Georgia, 30602
| | - Shi-You Chen
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, Georgia, 30602
| | - Yoshihiro Komatsu
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, Michigan, 48109.,Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, 27709.,Department of Pediatrics, The University of Texas Medical School at Houston, Houston, Texas, 77030
| | - Yuji Mishina
- Department of Biologic and Materials Sciences, School of Dentistry, University of Michigan, Ann Arbor, Michigan, 48109.,Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, 27709.,Knockout Core, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, 27709
| | - Hong-Xiang Liu
- Regenerative Bioscience Center, Department of Animal and Dairy Science, College of Agricultural and Environmental Sciences, University of Georgia, Athens, Georgia, 30602
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16
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ISLET1-Dependent β-Catenin/Hedgehog Signaling Is Required for Outgrowth of the Lower Jaw. Mol Cell Biol 2017; 37:MCB.00590-16. [PMID: 28069742 DOI: 10.1128/mcb.00590-16] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Accepted: 01/04/2017] [Indexed: 12/30/2022] Open
Abstract
Mandibular patterning information initially resides in the epithelium during development. However, how transcriptional regulation of epithelium-derived signaling controls morphogenesis of the mandible remains elusive. Using ShhCre to target the mandibular epithelium, we ablated transcription factor Islet1, resulting in a distally truncated mandible via unbalanced cell apoptosis and decreased cell proliferation in the distal mesenchyme. Loss of Islet1 caused a lack of cartilage at the distal tip, leading the fusion of two growing mandibular elements surrounding the rostral process of Meckel's cartilage. Loss of Islet1 results in dysregulation of mesenchymal genes important for morphogenesis of the mandibular arch. We revealed that Islet1 is required for the activation of epithelial β-catenin signaling via repression of Wnt antagonists. Reactivation of β-catenin in the epithelium of the Islet1 mutant rescued mandibular morphogenesis through sonic hedgehog (SHH) signaling to the mesenchyme. Furthermore, overexpression of a transgenic hedgehog ligand in the epithelium also partially restored outgrowth of the mandible. These data reveal functional roles for an ISLET1-dependent network integrating β-catenin/SHH signals in mesenchymal cell survival and outgrowth of the mandible during development.
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17
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Adameyko I, Fried K. The Nervous System Orchestrates and Integrates Craniofacial Development: A Review. Front Physiol 2016; 7:49. [PMID: 26924989 PMCID: PMC4759458 DOI: 10.3389/fphys.2016.00049] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 02/02/2016] [Indexed: 01/14/2023] Open
Abstract
Development of a head is a dazzlingly complex process: a number of distinct cellular sources including cranial ecto- and endoderm, mesoderm and neural crest contribute to facial and other structures. In the head, an extremely fine-tuned developmental coordination of CNS, peripheral neural components, sensory organs and a musculo-skeletal apparatus occurs, which provides protection and functional integration. The face can to a large extent be considered as an assembly of sensory systems encased and functionally fused with appendages represented by jaws. Here we review how the developing brain, neurogenic placodes and peripheral nerves influence the morphogenesis of surrounding tissues as a part of various general integrative processes in the head. The mechanisms of this impact, as we understand it now, span from the targeted release of the morphogens necessary for shaping to providing a niche for cellular sources required in later development. In this review we also discuss the most recent findings and ideas related to how peripheral nerves and nerve-associated cells contribute to craniofacial development, including teeth, during the post- neural crest period and potentially in regeneration.
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Affiliation(s)
- Igor Adameyko
- Department of Physiology and Pharmacology, Karolinska InstitutetStockholm, Sweden; Department of Molecular Neurosciences, Center of Brain Research, Medical University of ViennaVienna, Austria
| | - Kaj Fried
- Department of Neuroscience, Karolinska Institutet Stockholm, Sweden
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18
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Sakai D, Dixon J, Achilleos A, Dixon M, Trainor PA. Prevention of Treacher Collins syndrome craniofacial anomalies in mouse models via maternal antioxidant supplementation. Nat Commun 2016; 7:10328. [PMID: 26792133 PMCID: PMC4735750 DOI: 10.1038/ncomms10328] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 12/02/2015] [Indexed: 12/25/2022] Open
Abstract
Craniofacial anomalies account for approximately one-third of all birth defects and are a significant cause of infant mortality. Since the majority of the bones, cartilage and connective tissues that comprise the head and face are derived from a multipotent migratory progenitor cell population called the neural crest, craniofacial disorders are typically attributed to defects in neural crest cell development. Treacher Collins syndrome (TCS) is a disorder of craniofacial development and although TCS arises primarily through autosomal dominant mutations in TCOF1, no clear genotype-phenotype correlation has been documented. Here we show that Tcof1 haploinsufficiency results in oxidative stress-induced DNA damage and neuroepithelial cell death. Consistent with this discovery, maternal treatment with antioxidants minimizes cell death in the neuroepithelium and substantially ameliorates or prevents the pathogenesis of craniofacial anomalies in Tcof1(+/-) mice. Thus maternal antioxidant dietary supplementation may provide an avenue for protection against the pathogenesis of TCS and similar neurocristopathies.
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Affiliation(s)
- Daisuke Sakai
- Organization for Research Initiatives and Development, Doshisha University, Karasuma Higashi-iru, Imadegawa-dori, Kamigyo, Kyoto 602-8580, Japan
| | - Jill Dixon
- Dental School, Faculty of Medical and Human Sciences, Manchester Academic Health Sciences Centre, Michael Smith Building, University of Manchester, Oxford Road, Manchester M13 9PT, UK
| | - Annita Achilleos
- Stowers Institute for Medical Research, 1000 E. 50th Street, Kansas City, Missouri 64110, USA
| | - Michael Dixon
- Dental School, Faculty of Medical and Human Sciences, Manchester Academic Health Sciences Centre, Michael Smith Building, University of Manchester, Oxford Road, Manchester M13 9PT, UK
- Faculty of Life Sciences, Michael Smith Building, University of Manchester, Oxford Road, Manchester M13 9PT, UK
| | - Paul A. Trainor
- Stowers Institute for Medical Research, 1000 E. 50th Street, Kansas City, Missouri 64110, USA
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, Kansas 66160, USA
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19
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Schuster K, Leeke B, Meier M, Wang Y, Newman T, Burgess S, Horsfield JA. A neural crest origin for cohesinopathy heart defects. Hum Mol Genet 2015; 24:7005-16. [PMID: 26420840 PMCID: PMC4654055 DOI: 10.1093/hmg/ddv402] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 09/21/2015] [Indexed: 01/13/2023] Open
Abstract
Mutations in subunits or regulators of cohesin cause a spectrum of disorders in humans known as the 'cohesinopathies'. Cohesinopathies, including the best known example Cornelia de Lange syndrome (CdLS), are characterized by broad spectrum, multifactorial developmental anomalies. Heart defects occur at high frequency and can reach up to 30% in CdLS. The mechanisms by which heart defects occur are enigmatic, but assumed to be developmental in origin. In this study, we depleted cohesin subunit Rad21 by 70-80% in a zebrafish cohesinopathy model. The hearts of Rad21-depleted animals were smaller, often failed to loop, and functioned less efficiently than size-matched controls. Functional deficiency was accompanied by valve defects and reduced ejection fraction. Interestingly, neural crest cells failed to populate the heart and instead exhibited a wandering behavior. Consequently, these cells also failed to condense correctly into pharyngeal arches. Transcriptome analysis revealed that Wnt pathway, chemokine and cadherin genes are dysregulated at the time of cardiac neural crest development. Our results give insight into the etiology of heart defects in the cohesinopathies, and raise the possibility that mild mutations in cohesin genes may be causative of a fraction of congenital heart disease in human populations.
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Affiliation(s)
- Kevin Schuster
- Department of Pathology, Dunedin School of Medicine, The University of Otago, PO Box 913, Dunedin, New Zealand and
| | - Bryony Leeke
- Department of Pathology, Dunedin School of Medicine, The University of Otago, PO Box 913, Dunedin, New Zealand and
| | - Michael Meier
- Department of Pathology, Dunedin School of Medicine, The University of Otago, PO Box 913, Dunedin, New Zealand and
| | - Yizhou Wang
- Department of Pathology, Dunedin School of Medicine, The University of Otago, PO Box 913, Dunedin, New Zealand and
| | - Trent Newman
- Department of Pathology, Dunedin School of Medicine, The University of Otago, PO Box 913, Dunedin, New Zealand and
| | - Sean Burgess
- Department of Molecular and Cellular Biology, University of California, Davis, CA 95616, USA
| | - Julia A Horsfield
- Department of Pathology, Dunedin School of Medicine, The University of Otago, PO Box 913, Dunedin, New Zealand and
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20
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LaMantia AS, Moody SA, Maynard TM, Karpinski BA, Zohn IE, Mendelowitz D, Lee NH, Popratiloff A. Hard to swallow: Developmental biological insights into pediatric dysphagia. Dev Biol 2015; 409:329-42. [PMID: 26554723 DOI: 10.1016/j.ydbio.2015.09.024] [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: 07/20/2015] [Revised: 09/10/2015] [Accepted: 09/15/2015] [Indexed: 12/16/2022]
Abstract
Pediatric dysphagia-feeding and swallowing difficulties that begin at birth, last throughout childhood, and continue into maturity--is one of the most common, least understood complications in children with developmental disorders. We argue that a major cause of pediatric dysphagia is altered hindbrain patterning during pre-natal development. Such changes can compromise craniofacial structures including oropharyngeal muscles and skeletal elements as well as motor and sensory circuits necessary for normal feeding and swallowing. Animal models of developmental disorders that include pediatric dysphagia in their phenotypic spectrum can provide mechanistic insight into pathogenesis of feeding and swallowing difficulties. A fairly common human genetic developmental disorder, DiGeorge/22q11.2 Deletion Syndrome (22q11DS) includes a substantial incidence of pediatric dysphagia in its phenotypic spectrum. Infant mice carrying a parallel deletion to 22q11DS patients have feeding and swallowing difficulties that approximate those seen in pediatric dysphagia. Altered hindbrain patterning, craniofacial malformations, and changes in cranial nerve growth prefigure these difficulties. Thus, in addition to craniofacial and pharyngeal anomalies that arise independently of altered neural development, pediatric dysphagia may result from disrupted hindbrain patterning and its impact on peripheral and central neural circuit development critical for feeding and swallowing. The mechanisms that disrupt hindbrain patterning and circuitry may provide a foundation to develop novel therapeutic approaches for improved clinical management of pediatric dysphagia.
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Affiliation(s)
- Anthony-Samuel LaMantia
- Institute for Neuroscience, The George Washington University School of Medicine and Health Sciences, Washington D.C., USA; Department of Pharmacology and Physiology, George Washington University, School of Medicine and Health Sciences, Washington D.C., USA
| | - Sally A Moody
- Institute for Neuroscience, The George Washington University School of Medicine and Health Sciences, Washington D.C., USA; Department of Anatomy and Regenerative Biology, George Washington University, School of Medicine and Health Sciences, Washington D.C., USA
| | - Thomas M Maynard
- Institute for Neuroscience, The George Washington University School of Medicine and Health Sciences, Washington D.C., USA; Department of Pharmacology and Physiology, George Washington University, School of Medicine and Health Sciences, Washington D.C., USA
| | - Beverly A Karpinski
- Institute for Neuroscience, The George Washington University School of Medicine and Health Sciences, Washington D.C., USA; Department of Pharmacology and Physiology, George Washington University, School of Medicine and Health Sciences, Washington D.C., USA
| | - Irene E Zohn
- Institute for Neuroscience, The George Washington University School of Medicine and Health Sciences, Washington D.C., USA; Center for Neuroscience Research, Children's National Health System, Washington D.C., USA
| | - David Mendelowitz
- Institute for Neuroscience, The George Washington University School of Medicine and Health Sciences, Washington D.C., USA; Department of Pharmacology and Physiology, George Washington University, School of Medicine and Health Sciences, Washington D.C., USA
| | - Norman H Lee
- Institute for Neuroscience, The George Washington University School of Medicine and Health Sciences, Washington D.C., USA; Department of Pharmacology and Physiology, George Washington University, School of Medicine and Health Sciences, Washington D.C., USA
| | - Anastas Popratiloff
- Institute for Neuroscience, The George Washington University School of Medicine and Health Sciences, Washington D.C., USA; Department of Anatomy and Regenerative Biology, George Washington University, School of Medicine and Health Sciences, Washington D.C., USA
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21
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Rodella LF, Cocchi MA, Rezzani R, Procacci P, Hirtler L, Nocini P, Albanese M. Fresh frozen bone in oral and maxillofacial surgery. J Dent Sci 2015. [DOI: 10.1016/j.jds.2014.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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22
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Pentimento: Neural Crest and the origin of mesectoderm. Dev Biol 2015; 401:37-61. [DOI: 10.1016/j.ydbio.2014.12.035] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 12/28/2014] [Accepted: 12/30/2014] [Indexed: 11/17/2022]
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23
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Liu B, Filippi S, Roy A, Roberts I. Stem and progenitor cell dysfunction in human trisomies. EMBO Rep 2014; 16:44-62. [PMID: 25520324 DOI: 10.15252/embr.201439583] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Trisomy 21, the commonest constitutional aneuploidy in humans, causes profound perturbation of stem and progenitor cell growth, which is both cell context dependent and developmental stage specific and mediated by complex genetic mechanisms beyond increased Hsa21 gene dosage. While proliferation of fetal hematopoietic and testicular stem/progenitors is increased and may underlie increased susceptibility to childhood leukemia and testicular cancer, fetal stem/progenitor proliferation in other tissues is markedly impaired leading to the characteristic craniofacial, neurocognitive and cardiac features in individuals with Down syndrome. After birth, trisomy 21-mediated premature aging of stem/progenitor cells may contribute to the progressive multi-system deterioration, including development of Alzheimer's disease.
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Affiliation(s)
- Binbin Liu
- Department of Paediatrics and Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, Oxford, UK
| | - Sarah Filippi
- Department of Statistics, University of Oxford, Oxford, UK
| | - Anindita Roy
- Centre for Haematology, Imperial College London, London, UK
| | - Irene Roberts
- Department of Paediatrics and Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, Oxford, UK
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24
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Firulli BA, Fuchs RK, Vincentz JW, Clouthier DE, Firulli AB. Hand1 phosphoregulation within the distal arch neural crest is essential for craniofacial morphogenesis. Development 2014; 141:3050-61. [PMID: 25053435 DOI: 10.1242/dev.107680] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
In this study we examine the consequences of altering Hand1 phosphoregulation in the developing neural crest cells (NCCs) of mice. Whereas Hand1 deletion in NCCs reveals a nonessential role for Hand1 in craniofacial development and embryonic survival, altering Hand1 phosphoregulation, and consequently Hand1 dimerization affinities, in NCCs results in severe mid-facial clefting and neonatal death. Hand1 phosphorylation mutants exhibit a non-cell-autonomous increase in pharyngeal arch cell death accompanied by alterations in Fgf8 and Shh pathway expression. Together, our data indicate that the extreme distal pharyngeal arch expression domain of Hand1 defines a novel bHLH-dependent activity, and that disruption of established Hand1 dimer phosphoregulation within this domain disrupts normal craniofacial patterning.
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Affiliation(s)
- Beth A Firulli
- Riley Heart Research Center, Herman B Wells Center for Pediatric Research, Division of Pediatric Cardiology, Departments of Anatomy and Medical, Biochemistry, and Molecular Genetics, Indiana Medical School, 1044 W. Walnut Street, Indianapolis, IN 46202-5225, USA
| | - Robyn K Fuchs
- Department of Physical Therapy and the Center for Translational Musculoskeletal Research, School of Health and Rehabilitation Science, Indiana University, Indianapolis, IN 46202, USA
| | - Joshua W Vincentz
- Riley Heart Research Center, Herman B Wells Center for Pediatric Research, Division of Pediatric Cardiology, Departments of Anatomy and Medical, Biochemistry, and Molecular Genetics, Indiana Medical School, 1044 W. Walnut Street, Indianapolis, IN 46202-5225, USA
| | - David E Clouthier
- Department of Craniofacial Biology, University of Colorado Anschutz Medical Campus, 12801 E 17th Avenue, Rm. 11-109, MS 8120, Aurora, CO 80045, USA
| | - Anthony B Firulli
- Riley Heart Research Center, Herman B Wells Center for Pediatric Research, Division of Pediatric Cardiology, Departments of Anatomy and Medical, Biochemistry, and Molecular Genetics, Indiana Medical School, 1044 W. Walnut Street, Indianapolis, IN 46202-5225, USA
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25
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Dworkin S, Simkin J, Darido C, Partridge DD, Georgy SR, Caddy J, Wilanowski T, Lieschke GJ, Doggett K, Heath JK, Jane SM. Grainyhead-like 3 regulation of endothelin-1 in the pharyngeal endoderm is critical for growth and development of the craniofacial skeleton. Mech Dev 2014; 133:77-90. [PMID: 24915580 DOI: 10.1016/j.mod.2014.05.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 05/25/2014] [Indexed: 10/25/2022]
Abstract
Craniofacial development is a highly conserved process that requires complex interactions between neural crest cells (NCCs) and pharyngeal tissues derived from all three germ layers. Signals emanating from the pharyngeal endoderm drive differentiation of NCCs into craniofacial cartilage, and disruption of this process underpins several human craniofacial defects (CFD). Here, we demonstrate that morpholino (MO)-mediated knockdown in zebrafish of the highly conserved transcription factor grainyhead-like 3 (grhl3), which is selectively expressed in the pharyngeal endoderm, leads to severe hypoplasia of the lower jaw cartilages. Phylogenetic analysis of conserved grhl-binding sites in gene regulatory regions identified endothelin-1 (edn1) as a putative direct grhl3 target gene, and this was confirmed by chromatin precipitation (ChIP) assays in zebrafish embryos. Injection of sub-phenotypic concentrations of MOs targeting both grhl3 and edn1 induced jaw abnormalities, and injection of edn1 mRNA into grhl3-morphants rescued both pharyngeal expression of the downstream effectors of edn1, and jaw cartilage formation. This study sheds new light on the role of endodermal endothelin-1 in vertebrate jaw development, and highlights potential new genetic defects that could underpin human CFD.
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Affiliation(s)
- Sebastian Dworkin
- Department of Medicine, Monash University Central Clinical School, Prahran, VIC 3181, Australia.
| | - Johanna Simkin
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC 3050, Australia
| | - Charbel Darido
- Department of Medicine, Monash University Central Clinical School, Prahran, VIC 3181, Australia
| | - Darren D Partridge
- Department of Medicine, Monash University Central Clinical School, Prahran, VIC 3181, Australia
| | - Smitha R Georgy
- Department of Medicine, Monash University Central Clinical School, Prahran, VIC 3181, Australia
| | - Jacinta Caddy
- Bone Marrow Research Laboratories, Royal Melbourne Hospital, Parkville, VIC 3050, Australia
| | - Tomasz Wilanowski
- Bone Marrow Research Laboratories, Royal Melbourne Hospital, Parkville, VIC 3050, Australia; Laboratory of Signal Transduction, Nencki Institute of Experimental Biology, 02-093 Warsaw, Poland
| | - Graham J Lieschke
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC 3050, Australia; Australian Regenerative Medicine Institute, Monash University, Clayton, VIC 3800, Australia
| | - Karen Doggett
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC 3050, Australia
| | - Joan K Heath
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC 3050, Australia; Colon Molecular and Cell Biology Laboratory, Ludwig Institute for Cancer Research, Melbourne-Parkville Branch, Parkville, VIC 3050, Australia
| | - Stephen M Jane
- Department of Medicine, Monash University Central Clinical School, Prahran, VIC 3181, Australia; Alfred Hospital, Prahran, VIC 3181, Australia
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26
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Gong SG. Cranial neural crest: migratory cell behavior and regulatory networks. Exp Cell Res 2014; 325:90-5. [PMID: 24680987 DOI: 10.1016/j.yexcr.2014.03.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 03/16/2014] [Accepted: 03/18/2014] [Indexed: 12/19/2022]
Abstract
Defects of the head and neck region account for a substantial portion of all human birth disorders. The high incidence of malformations in this region may be attributed in part to the intricate means by which the facial region is assembled during embryonic development. The starting constituent for the majority of skeletal and connective tissues in the face is a pluripotent population of cells, the cranial neural crest (CNC) cells. This population of cells exhibit remarkable migratory abilities and diversity of potential cell types. This review draws on extensive research that has been done in the field, focusing specifically on findings generated in the last decade on cell behavior and the gene regulatory networks of migratory CNC cells. In the later part of this review, the importance of the CNC cells in the overall development of the craniofacial region will be illustrated with a discussion of a craniofacial birth defect, the Treacher Collins syndrome. The next decade will most likely herald in an era of greater understanding of the integrative molecular networks at different stages of the development of the CNC cells. Such new information is essential towards a better understanding the etiology and pathogenesis of the many craniofacial birth defects and will ultimately lead to new therapeutic modalities.
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Affiliation(s)
- Siew-Ging Gong
- Department of Orthodontics, Dental Research Institute, Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, Ontario, Canada M5G 1G6.
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27
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LifeMap Discovery™: the embryonic development, stem cells, and regenerative medicine research portal. PLoS One 2013; 8:e66629. [PMID: 23874394 PMCID: PMC3714290 DOI: 10.1371/journal.pone.0066629] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2013] [Accepted: 04/29/2013] [Indexed: 11/19/2022] Open
Abstract
LifeMap Discovery™ provides investigators with an integrated database of embryonic development, stem cell biology and regenerative medicine. The hand-curated reconstruction of cell ontology with stem cell biology; including molecular, cellular, anatomical and disease-related information, provides efficient and easy-to-use, searchable research tools. The database collates in vivo and in vitro gene expression and guides translation from in vitro data to the clinical utility, and thus can be utilized as a powerful tool for research and discovery in stem cell biology, developmental biology, disease mechanisms and therapeutic discovery. LifeMap Discovery is freely available to academic nonprofit institutions at http://discovery.lifemapsc.com.
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Sarnat HB, Flores-Sarnat L. Genetics of neural crest and neurocutaneous syndromes. HANDBOOK OF CLINICAL NEUROLOGY 2013; 111:309-14. [PMID: 23622181 DOI: 10.1016/b978-0-444-52891-9.00036-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Neural crest progenitor cells are identified at the lateral margins of the neural placode at the time of gastrulation. With folding of the placode, these precursors are brought to the dorsal midline of the neural tube at the site of closure, become committed to neural crest lineage and almost immediately migrate peripherally to various predetermined sites in the body and then differentiate as a variety of cellular types in all three of the traditional "germ layers." All of these processes of migration and differentiation of neural crest are precisely genetically programed, temporally and spatially, by a variety of genes. Primary neurocutaneous syndromes are all very different diseases with different genetic mutations, but the unifying factor amongst them is that all are neurocristopathies and can be explained as such, including the tumor-suppressor function of several of these genes, especially those of neurofibromatosis 1 and 2 and tuberous sclerosis. This chapter reviews the principal genes that program neural crest development and also are documented, implicated, or suspected in the pathogenesis of neurocutaneous syndromes. Recent genetic discoveries are noted in epidermal nevus syndrome, including Proteus syndrome and their association with hemimegalencephaly and congenital infiltrating lipomatosis of the face.
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Affiliation(s)
- Harvey B Sarnat
- Departments of Clinical Neurosciences and Paediatrics, Division of Paediatric Neurology, University of Calgary, Alberta Children's Hospital, Calgary, Canada
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McLennan R, Dyson L, Prather KW, Morrison JA, Baker RE, Maini PK, Kulesa PM. Multiscale mechanisms of cell migration during development: theory and experiment. Development 2012; 139:2935-44. [PMID: 22764050 DOI: 10.1242/dev.081471] [Citation(s) in RCA: 115] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Long-distance cell migration is an important feature of embryonic development, adult morphogenesis and cancer, yet the mechanisms that drive subpopulations of cells to distinct targets are poorly understood. Here, we use the embryonic neural crest (NC) in tandem with theoretical studies to evaluate model mechanisms of long-distance cell migration. We find that a simple chemotaxis model is insufficient to explain our experimental data. Instead, model simulations predict that NC cell migration requires leading cells to respond to long-range guidance signals and trailing cells to short-range cues in order to maintain a directed, multicellular stream. Experiments confirm differences in leading versus trailing NC cell subpopulations, manifested in unique cell orientation and gene expression patterns that respond to non-linear tissue growth of the migratory domain. Ablation experiments that delete the trailing NC cell subpopulation reveal that leading NC cells distribute all along the migratory pathway and develop a leading/trailing cellular orientation and gene expression profile that is predicted by model simulations. Transplantation experiments and model predictions that move trailing NC cells to the migratory front, or vice versa, reveal that cells adopt a gene expression profile and cell behaviors corresponding to the new position within the migratory stream. These results offer a mechanistic model in which leading cells create and respond to a cell-induced chemotactic gradient and transmit guidance information to trailing cells that use short-range signals to move in a directional manner.
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Affiliation(s)
- Rebecca McLennan
- Stowers Institute for Medical Research, 1000 East 50th St, Kansas City, MO 64110, USA
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Lawal RA, Calvi LM. The niche as a target for hematopoietic manipulation and regeneration. TISSUE ENGINEERING PART B-REVIEWS 2011; 17:415-22. [PMID: 21902610 DOI: 10.1089/ten.teb.2011.0197] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Hematopoietic stem cells (HSCs), rare primitive cells capable of reconstituting all blood cell lineages, are the only stem cells currently routinely used for therapeutic purposes. Clinical experience has shown that HSC number is an important limiting factor in treatment success. Strategies to expand HSCs are of great clinical appeal, as they would improve therapeutic use of these cells in stem cell transplantation and in conditions of bone marrow failure. The microenvironment in which HSCs reside, known as the niche, has long been considered a critical regulator of HSCs. Data accumulated over the past decade strongly confirm the importance of the niche in HSC behavior. A number of niche components as well as signaling pathways, such as Notch, have been implicated in the interaction of the microenvironment with HSCs and continue to be genetically evaluated in the hope of defining the critical elements that are required and which, if modified, can initiate HSC behaviors. In this review, we highlight the known characteristics of HSCs, challenges in their expansion, the niche phenomenon, and explain why niche stimulated HSC expansion is of utmost interest in the field, while beginning to bring to the fore potential caveats of niche manipulation. Lastly, the potential pitfalls of avoiding malignancy and controlling self-renewal versus differentiation will be briefly reviewed.
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Theveneau E, Mayor R. Collective cell migration of the cephalic neural crest: The art of integrating information. Genesis 2011; 49:164-76. [DOI: 10.1002/dvg.20700] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Revised: 11/30/2010] [Accepted: 12/04/2010] [Indexed: 02/03/2023]
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Abstract
The middle ear is a composite organ formed from all three germ layers and the neural crest. It provides the link between the outside world and the inner ear, where sound is transduced and routed to the brain for processing. Extensive classical and modern studies have described the complex morphology and origin of the middle ear. Non-mammalian vertebrates have a single ossicle, the columella. Mammals have three functionally equivalent ossicles, designated the malleus, incus and stapes. In this review, I focus on the role of genes known to function in the middle ear. Genetic studies are beginning to unravel the induction and patterning of the multiple middle ear elements including the tympanum, skeletal elements, the air-filled cavity, and the insertion point into the inner ear oval window. Future studies that elucidate the integrated spatio-temporal signaling mechanisms required to pattern the middle ear organ system are needed. The longer-term translational benefits of understanding normal and abnormal ear development will have a direct impact on human health outcomes.
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Müller F, O’Rahilly R. The Initial Appearance of the Cranial Nerves and Related Neuronal Migration in Staged Human Embryos. Cells Tissues Organs 2011; 193:215-38. [DOI: 10.1159/000320026] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/02/2010] [Indexed: 11/19/2022] Open
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Betancur P, Bronner-Fraser M, Sauka-Spengler T. Assembling neural crest regulatory circuits into a gene regulatory network. Annu Rev Cell Dev Biol 2010; 26:581-603. [PMID: 19575671 DOI: 10.1146/annurev.cellbio.042308.113245] [Citation(s) in RCA: 218] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The neural crest is a multipotent stem cell–like population that gives rise to a wide range of derivatives in the vertebrate embryo including elements of the craniofacial skeleton and peripheral nervous system as well as melanocytes. The neural crest forms in a series of regulatory steps that include induction and specification of the prospective neural crest territory–neural plate border, specification of bona fide neural crest progenitors, and differentiation into diverse derivatives. These individual processes during neural crest ontogeny are controlled by regulatory circuits that can be assembled into a hierarchical gene regulatory network (GRN). Here we present an overview of the GRN that orchestrates the formation of cranial neural crest cells. Formulation of this network relies on information largely inferred from gene perturbation studies performed in several vertebrate model organisms. Our representation of the cranial neural crest GRN also includes information about direct regulatory interactions obtained from the cis-regulatory analyses performed to date, which increases the resolution of the architectural circuitry within the network.
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Affiliation(s)
- Paola Betancur
- Division of Biology, California Institute of Technology, Pasadena, California 91125, USA
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Wehrhan F, Hyckel P, Ries J, Stockmann P, Nkenke E, Schlegel KA, Neukam FW, Amann K. Expression of Msx-1 is suppressed in bisphosphonate associated osteonecrosis related jaw tissue-etiopathology considerations respecting jaw developmental biology-related unique features. J Transl Med 2010; 8:96. [PMID: 20942943 PMCID: PMC2973937 DOI: 10.1186/1479-5876-8-96] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2010] [Accepted: 10/13/2010] [Indexed: 01/06/2023] Open
Abstract
Background Bone-destructive disease treatments include bisphosphonates and antibodies against the osteoclast differentiator, RANKL (aRANKL); however, osteonecrosis of the jaw (ONJ) is a frequent side-effect. Current models fail to explain the restriction of bisphosphonate (BP)-related and denosumab (anti-RANKL antibody)-related ONJ to jaws. Msx-1 is exclusively expressed in craniofacial structures and pivotal to cranial neural crest (CNC)-derived periodontal tissue remodeling. We hypothesised that Msx-1 expression might be impaired in bisphosphonate-related ONJ. The study aim was to elucidate Msx-1 and RANKL-associated signal transduction (BMP-2/4, RANKL) in ONJ-altered and healthy periodontal tissue. Methods Twenty ONJ and twenty non-BP exposed periodontal samples were processed for RT-PCR and immunohistochemistry. An automated staining-based alkaline phosphatase-anti-alkaline phosphatase method was used to measure the stained cells:total cell-number ratio (labelling index, Bonferroni adjustment). Real-time RT-PCR was performed on ONJ-affected and healthy jaw periodontal samples (n = 20 each) to quantitatively compare Msx-1, BMP-2, RANKL, and GAPDH mRNA levels. Results Semi-quantitative assessment of the ratio of stained cells showed decreased Msx-1 and RANKL and increased BMP-2/4 (all p < 0.05) expression in ONJ-adjacent periodontal tissue. ONJ tissue also exhibited decreased relative gene expression for Msx-1 (p < 0.03) and RANKL (p < 0.03) and increased BMP-2/4 expression (p < 0.02) compared to control. Conclusions These results explain the sclerotic and osteopetrotic changes of periodontal tissue following BP application and substantiate clinical findings of BP-related impaired remodeling specific to periodontal tissue. RANKL suppression substantiated the clinical finding of impaired bone remodelling in BP- and aRANKL-induced ONJ-affected bone structures. Msx-1 suppression in ONJ-adjacent periodontal tissue suggested a bisphosphonate-related impairment in cellular differentiation that occurred exclusively jaw remodelling. Further research on developmental biology-related unique features of jaw bone structures will help to elucidate pathologies restricted to maxillofacial tissue.
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Affiliation(s)
- Falk Wehrhan
- Department of Oral and Maxillofacial Surgery University of Erlangen-Nuremberg, Germany.
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Tbx1 is necessary for palatal elongation and elevation. Mech Dev 2010; 127:292-300. [PMID: 20214979 DOI: 10.1016/j.mod.2010.03.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2008] [Revised: 02/08/2010] [Accepted: 03/03/2010] [Indexed: 10/19/2022]
Abstract
The transcription factor TBX1 is a key mediator of developmental abnormalities associated with DiGeorge/Velocardiofacial Syndrome. Studies in mice have demonstrated that decreased dosage of Tbx1 results in defects in pharyngeal arch, cardiovascular, and craniofacial development. The role of Tbx1 in cardiac development has been intensely studied; however, its role in palatal development is poorly understood. By studying the Tbx1-/- mice we found defects during the critical points of palate elongation and elevation. The intrinsic palate defects in the Tbx1-/- mice were determined by measuring changes in palate shelf length, proliferation, apoptosis, expression of relevant growth factors, and in palate fusion assays. Tbx1-/- embryos exhibit cleft palate with failed palate elevation in 100% and abnormal palatal-oral fusions in 50%. In the Tbx1-/- mice the palate shelf length was reduced and tongue height was greater, demonstrating a physical impediment to palate elevation and apposition. In vitro palate fusion assays demonstrate that Tbx1-/- palate shelves are capable of fusion but a roller culture assay showed that the null palatal shelves were unable to elongate. Diminished hyaluronic acid production in the Tbx1-/- palate shelves may explain failed palate shelf elevation. In addition, cell proliferation and apoptosis were perturbed in Tbx1-/- palates. A sharp decrease of Fgf8 expression was detected in the Tbx1-/- palate shelves, suggesting that Fgf8 is dependent on Tbx1 in the palate. Fgf10 is also up-regulated in the Tbx1-/- palate shelves and tongue. These data demonstrate that Tbx1 is a critical transcription factor that guides palatal elongation and elevation and that Fgf8 expression in the palate is Tbx1-dependent.
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Olesnicky Killian EC, Birkholz DA, Artinger KB. A role for chemokine signaling in neural crest cell migration and craniofacial development. Dev Biol 2009; 333:161-72. [PMID: 19576198 DOI: 10.1016/j.ydbio.2009.06.031] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2008] [Revised: 06/22/2009] [Accepted: 06/23/2009] [Indexed: 12/13/2022]
Abstract
Neural crest cells (NCCs) are a unique population of multipotent cells that migrate along defined pathways throughout the embryo and give rise to many diverse cell types including pigment cells, craniofacial cartilage and the peripheral nervous system (PNS). Aberrant migration of NCCs results in a wide variety of congenital birth defects including craniofacial abnormalities. The chemokine Sdf1 and its receptors, Cxcr4 and Cxcr7, have been identified as key components in the regulation of cell migration in a variety of tissues. Here we describe a novel role for the zebrafish chemokine receptor Cxcr4a in the development and migration of cranial NCCs (CNCCs). We find that loss of Cxcr4a, but not Cxcr7b, results in aberrant CNCC migration defects in the neurocranium, as well as cranial ganglia dysmorphogenesis. Moreover, overexpression of either Sdf1b or Cxcr4a causes aberrant CNCC migration and results in ectopic craniofacial cartilages. We propose a model in which Sdf1b signaling from the pharyngeal arch endoderm and optic stalk to Cxcr4a expressing CNCCs is important for both the proper condensation of the CNCCs into pharyngeal arches and the subsequent patterning and morphogenesis of the neural crest derived tissues.
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Affiliation(s)
- Eugenia C Olesnicky Killian
- Department of Craniofacial Biology, University of Colorado Denver School of Dental Medicine, Aurora, CO 80045, USA
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Abe M, Maeda T, Wakisaka S. Retinoic acid affects craniofacial patterning by changing Fgf8 expression in the pharyngeal ectoderm. Dev Growth Differ 2009; 50:717-29. [PMID: 19046160 DOI: 10.1111/j.1440-169x.2008.01069.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Retinoic acid signaling plays important roles in establishing normal patterning and cellular differentiation during embryonic development. In this study, we show that single administration of retinoic acid at embryonic day 8.5 causes homeotic transformation of the lower jaw into upper jaw-like structures. This homeosis was preceded by downregulation of Fgf8 and Sprouty expression in the proximal domain of the first pharyngeal arch. Downregulation of mesenchymal genes such as Dlx5, Hand2, Tbx1 and Pitx2 was also observed. The oropharynx in retinoic acid-treated embryos was severely constricted. Consistent with this observation, Patched expression in the arch endoderm and mesenchyme was downregulated. Thus, retinoic acid affects the expression of subsets of epithelial and mesenchymal genes, possibly disrupting the regional identity of the pharyngeal arch.
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Affiliation(s)
- Makoto Abe
- Department of Oral Anatomy and Developmental Biology, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan.
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Depew MJ, Compagnucci C. Tweaking the hinge and caps: testing a model of the organization of jaws. JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION 2008; 310:315-35. [PMID: 18027841 DOI: 10.1002/jez.b.21205] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Historically, examinations of gnathostome skulls have indicated that for essentially the entirety of their existence, jaws have been characterized by a high degree of fidelity to an initial basic structural design that will then go on to manifest an amazing array of end-point phenotypes. These two traits-bauplan fidelity and elaboration of design-are inter-connected and striking, and beg a number of questions, including: Are all jaws made in the same manner and if not how not? To begin to tackle such questions, we herein operationally define jaws as two appositional, hinged cranial units for which polarity and potential modularity are characteristics, and then address what is necessary for them to form, including delineating both the sources of cells and tissues that will formally yield the jaws as well as what informs their ontogeny (e.g., sources of positional information and factors directing the interpretation of developmental cues). Following on this, we briefly describe a predictive, testable model of jaw development (the "Hinge and Caps" model) and present evidence that the Satb2+cell population in the developing jaw primordia of mice defines a developmentally and evolutionarily significant jaw module such as would be predicted by the model.
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Affiliation(s)
- Michael J Depew
- Department of Craniofacial Development, Guy's Hospital, King's College London, London, United Kingdom.
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