51
|
Expression and localization of forkhead box protein FOXJ1 in S100β-positive multiciliated cells of the rat pituitary. Med Mol Morphol 2016; 50:59-67. [PMID: 27660208 DOI: 10.1007/s00795-016-0148-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 09/15/2016] [Indexed: 12/13/2022]
Abstract
S100β-positive cells exist in the marginal cell layer (MCL) of the adenohypophysis and follicle structure in the parenchyma of anterior lobe (ALFS) in pituitary. They have multiple functions as phagocytes or cells that regulate hormone secretion. Majority of S100β-positive cells in the adenohypophysis express sex determining region Y-box 2 protein (SOX2), a stem cell marker; therefore, S100β/SOX2 double positive cells are also considered as one type of stem/progenitor cells. MCL and ALFS are consisting of morphologically two types of cells, i.e., multiciliated cells and non-ciliated cells. However, the relationship between the S100β-positive cells and multiciliated cells in the pituitary is largely unknown. In the present study, we first immunohistochemically verified the feature of multiciliated cells in MCL and ALFS. We then examined the expression patterns of FOXJ1, an essential expression factor for multiciliated cell-differentiation, and SOX2 in the S100β-positive multiciliated cells by in situ hybridization and immunohistochemistry. We identified anew the S100β/SOX2/FOXJ1 triple positive multiciliated cells, and revealed that they were dispersed throughout the MCL and ALFS. These results indicate that the MCL and ALFS are consisting of morphologically and functionally distinct two types of cells, i.e., S100β/SOX2 double positive non-ciliated cells and S100β/SOX2/FOXJ1 triple positive multiciliated cells.
Collapse
|
52
|
Nemajerova A, Kramer D, Siller SS, Herr C, Shomroni O, Pena T, Gallinas Suazo C, Glaser K, Wildung M, Steffen H, Sriraman A, Oberle F, Wienken M, Hennion M, Vidal R, Royen B, Alevra M, Schild D, Bals R, Dönitz J, Riedel D, Bonn S, Takemaru KI, Moll UM, Lizé M. TAp73 is a central transcriptional regulator of airway multiciliogenesis. Genes Dev 2016; 30:1300-12. [PMID: 27257214 PMCID: PMC4911929 DOI: 10.1101/gad.279836.116] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Accepted: 05/02/2016] [Indexed: 01/25/2023]
Abstract
In this study, Nemajerova et al. identify TP73, a p53 homolog, as a key regulator of airway multiciliogenesis. They show that mice with TP73 deficiency suffer from chronic respiratory tract infections due to profound defects in ciliogenesis and complete loss of mucociliary clearance and identify the downstream components of TP73 during multiciliogenesis. Motile multiciliated cells (MCCs) have critical roles in respiratory health and disease and are essential for cleaning inhaled pollutants and pathogens from airways. Despite their significance for human disease, the transcriptional control that governs multiciliogenesis remains poorly understood. Here we identify TP73, a p53 homolog, as governing the program for airway multiciliogenesis. Mice with TP73 deficiency suffer from chronic respiratory tract infections due to profound defects in ciliogenesis and complete loss of mucociliary clearance. Organotypic airway cultures pinpoint TAp73 as necessary and sufficient for basal body docking, axonemal extension, and motility during the differentiation of MCC progenitors. Mechanistically, cross-species genomic analyses and complete ciliary rescue of knockout MCCs identify TAp73 as the conserved central transcriptional integrator of multiciliogenesis. TAp73 directly activates the key regulators FoxJ1, Rfx2, Rfx3, and miR34bc plus nearly 50 structural and functional ciliary genes, some of which are associated with human ciliopathies. Our results position TAp73 as a novel central regulator of MCC differentiation.
Collapse
Affiliation(s)
- Alice Nemajerova
- Department of Pathology, Stony Brook University, Stony Brook, New York 11794, USA
| | - Daniela Kramer
- Institute of Molecular Oncology, Göttingen University, 37077 Göttingen, Germany
| | - Saul S Siller
- Department of Pharmacology, Stony Brook University, Stony Brook, New York 11794, USA
| | - Christian Herr
- Department of Internal Medicine V, Saarland University, Homburg 66421, Germany
| | - Orr Shomroni
- Computational Systems Biology, German Center for Neurodegenerative Diseases, 37077 Göttingen, Germany
| | - Tonatiuh Pena
- Computational Systems Biology, German Center for Neurodegenerative Diseases, 37077 Göttingen, Germany
| | | | - Katharina Glaser
- Institute of Molecular Oncology, Göttingen University, 37077 Göttingen, Germany
| | - Merit Wildung
- Institute of Molecular Oncology, Göttingen University, 37077 Göttingen, Germany
| | - Henrik Steffen
- Institute of Molecular Oncology, Göttingen University, 37077 Göttingen, Germany
| | - Anusha Sriraman
- Institute of Molecular Oncology, Göttingen University, 37077 Göttingen, Germany
| | - Fabian Oberle
- Institute of Molecular Oncology, Göttingen University, 37077 Göttingen, Germany
| | - Magdalena Wienken
- Institute of Molecular Oncology, Göttingen University, 37077 Göttingen, Germany
| | - Magali Hennion
- Computational Systems Biology, German Center for Neurodegenerative Diseases, 37077 Göttingen, Germany
| | - Ramon Vidal
- Computational Systems Biology, German Center for Neurodegenerative Diseases, 37077 Göttingen, Germany
| | - Bettina Royen
- Department of Neurophysiology and Cellular Biophysics, Göttingen University, 37073 Göttingen, Germany
| | - Mihai Alevra
- Department of Neurophysiology and Cellular Biophysics, Göttingen University, 37073 Göttingen, Germany
| | - Detlev Schild
- Department of Neurophysiology and Cellular Biophysics, Göttingen University, 37073 Göttingen, Germany
| | - Robert Bals
- Department of Internal Medicine V, Saarland University, Homburg 66421, Germany
| | - Jürgen Dönitz
- Department of Evolutionary Developmental Genetics, Göttingen University, 37077 Göttingen, Germany
| | - Dietmar Riedel
- Electron Microscopy, Max-Planck-Institute for Biophysical Chemistry, 37077 Göttingen, Germany
| | - Stefan Bonn
- Computational Systems Biology, German Center for Neurodegenerative Diseases, 37077 Göttingen, Germany
| | - Ken-Ichi Takemaru
- Department of Pharmacology, Stony Brook University, Stony Brook, New York 11794, USA
| | - Ute M Moll
- Department of Pathology, Stony Brook University, Stony Brook, New York 11794, USA; Institute of Molecular Oncology, Göttingen University, 37077 Göttingen, Germany
| | - Muriel Lizé
- Institute of Molecular Oncology, Göttingen University, 37077 Göttingen, Germany; Clinic for Cardiology and Pneumology, Department of Pneumology, University Medical Center Göttingen, 37099 Göttingen, Germany
| |
Collapse
|
53
|
Horani A, Ferkol TW, Dutcher SK, Brody SL. Genetics and biology of primary ciliary dyskinesia. Paediatr Respir Rev 2016; 18:18-24. [PMID: 26476603 PMCID: PMC4864047 DOI: 10.1016/j.prrv.2015.09.001] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2015] [Accepted: 09/04/2015] [Indexed: 11/25/2022]
Abstract
Ciliopathies are a growing class of disorders caused by abnormal ciliary axonemal structure and function. Our understanding of the complex genetic and functional phenotypes of these conditions has rapidly progressed. Primary ciliary dyskinesia (PCD) remains the sole genetic disorder of motile cilia dysfunction. However, unlike many Mendelian genetic disorders, PCD is not caused by mutations in a single gene or locus, but rather, autosomal recessive mutation in one of many genes that lead to a similar phenotype. The first reported PCD mutations, more than a decade ago, identified genes encoding known structural components of the ciliary axoneme. In recent years, mutations in genes encoding novel cytoplasmic and regulatory proteins have been discovered. These findings have provided new insights into the functions of the motile cilia, and a better understanding of motile cilia disease. Advances in genetic tools will soon allow more precise genetic testing, mandating that clinicians must understand the genetic basis of PCD. Here, we review genetic mutations, their biological impact on cilia structure and function, and the implication of emerging genetic diagnostic tools.
Collapse
Affiliation(s)
- Amjad Horani
- Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri, USA.
| | - Thomas W Ferkol
- Departments of Pediatrics, Washington University School of Medicine, St. Louis, Missouri, USA
,Cell Biology and Physiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Susan K. Dutcher
- Cell Biology and Physiology, Washington University School of Medicine, St. Louis, Missouri, USA
,Genetics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Steven L Brody
- Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| |
Collapse
|
54
|
Crystal RG. Airway basal cells. The "smoking gun" of chronic obstructive pulmonary disease. Am J Respir Crit Care Med 2015; 190:1355-62. [PMID: 25354273 DOI: 10.1164/rccm.201408-1492pp] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The earliest abnormality in the lung associated with smoking is hyperplasia of airway basal cells, the stem/progenitor cells of the ciliated and secretory cells that are central to pulmonary host defense. Using cell biology and 'omics technologies to assess basal cells isolated from bronchoscopic brushings of nonsmokers, smokers, and smokers with chronic obstructive pulmonary disease (COPD), compelling evidence has been provided in support of the concept that airway basal cells are central to the pathogenesis of smoking-associated lung diseases. When confronted by the chronic stress of smoking, airway basal cells become disorderly, regress to a more primitive state, behave as dictated by their inheritance, are susceptible to acquired changes in their genome, lose the capacity to regenerate the epithelium, are responsible for the major changes in the airway that characterize COPD, and, with persistent stress, can undergo malignant transformation. Together, these observations led to the conclusion that accelerated loss of lung function in susceptible individuals begins with disordered airway basal cell biology (i.e., that airway basal cells are the "smoking gun" of COPD, a potential target for the development of therapies to prevent smoking-related lung disorders).
Collapse
Affiliation(s)
- Ronald G Crystal
- Department of Genetic Medicine, Weill Cornell Medical College, New York, New York
| |
Collapse
|
55
|
Cigarette smoke alters primary human bronchial epithelial cell differentiation at the air-liquid interface. Sci Rep 2015; 5:8163. [PMID: 25641363 PMCID: PMC4313097 DOI: 10.1038/srep08163] [Citation(s) in RCA: 120] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 01/07/2015] [Indexed: 12/21/2022] Open
Abstract
The differentiated human airway epithelium consists of different cell types forming a polarized and pseudostratified epithelium. This is dramatically altered in chronic obstructive pulmonary disease (COPD), characterized by basal and goblet cell hyperplasia, and squamous cell metaplasia. The effect of cigarette smoke on human bronchial epithelial cell (HBEC) differentiation remains to be elucidated. We analysed whether cigarette smoke extract (CSE) affected primary (p)HBEC differentiation and function. pHBEC were differentiated at the air-liquid interface (ALI) and differentiation was quantified after 7, 14, 21, or 28 days by assessing acetylated tubulin, CC10, or MUC5AC for ciliated, Clara, or goblet cells, respectively. Exposure of differentiating pHBEC to CSE impaired epithelial barrier formation, as assessed by resistance measurements (TEER). Importantly, CSE exposure significantly reduced the number of ciliated cells, while it increased the number of Clara and goblet cells. CSE-dependent cell number changes were reflected by a reduction of acetylated tubulin levels, an increased expression of the basal cell marker KRT14, and increased secretion of CC10, but not by changes in transcript levels of CC10, MUC5AC, or FOXJ1. Our data demonstrate that cigarette smoke specifically alters the cellular composition of the airway epithelium by affecting basal cell differentiation in a post-transcriptional manner.
Collapse
|
56
|
Genin EC, Caron N, Vandenbosch R, Nguyen L, Malgrange B. Concise review: forkhead pathway in the control of adult neurogenesis. Stem Cells 2015; 32:1398-407. [PMID: 24510844 DOI: 10.1002/stem.1673] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 01/09/2014] [Accepted: 01/09/2014] [Indexed: 12/23/2022]
Abstract
New cells are continuously generated from immature proliferating cells in the adult brain in two neurogenic niches known as the subgranular zone (SGZ) of the dentate gyrus (DG) of the hippocampus and the sub-ventricular zone (SVZ) of the lateral ventricles. However, the molecular mechanisms regulating their proliferation, differentiation, migration and functional integration of newborn neurons in pre-existing neural network remain largely unknown. Forkhead box (Fox) proteins belong to a large family of transcription factors implicated in a wide variety of biological processes. Recently, there has been accumulating evidence that several members of this family of proteins play important roles in adult neurogenesis. Here, we describe recent advances in our understanding of regulation provided by Fox factors in adult neurogenesis, and evaluate the potential role of Fox proteins as targets for therapeutic intervention in neurodegenerative diseases.
Collapse
Affiliation(s)
- Emmanuelle C Genin
- GIGA-Neurosciences, Developmental Neurobiology Unit, University of Liège, Liège, Belgium
| | | | | | | | | |
Collapse
|
57
|
Vieillard J, Jerber J, Durand B. Contrôle transcriptionnel des gènes ciliaires. Med Sci (Paris) 2014; 30:968-75. [DOI: 10.1051/medsci/20143011010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
58
|
Abstract
A characteristic feature of the human airway epithelium is the presence of ciliated cells bearing motile cilia, specialized cell surface projections containing axonemes composed of microtubules and dynein arms, which provide ATP-driven motility. In the airways, cilia function in concert with airway mucus to mediate the critical function of mucociliary clearance, cleansing the airways of inhaled particles and pathogens. The prototypical disorder of respiratory cilia is primary ciliary dyskinesia, an inherited disorder that leads to impaired mucociliary clearance, to repeated chest infections, and to the progressive destruction of lung architecture. Numerous acquired lung diseases are also marked by abnormalities in both cilia structure and function. In this review we summarize current knowledge regarding airway ciliated cells and cilia, how they function to maintain a healthy epithelium, and how disorders of cilia structure and function contribute to inherited and acquired lung disease.
Collapse
|
59
|
Abstract
Cilia are microtubule-based projections that serve a wide variety of essential functions in animal cells. Defects in cilia structure or function have recently been found to underlie diverse human diseases. While many eukaryotic cells possess only one or two cilia, some cells, including those of many unicellular organisms, exhibit many cilia. In vertebrates, multiciliated cells are a specialized population of post-mitotic cells decorated with dozens of motile cilia that beat in a polarized and synchronized fashion to drive directed fluid flow across an epithelium. Dysfunction of human multiciliated cells is associated with diseases of the brain, airway and reproductive tracts. Despite their importance, multiciliated cells are relatively poorly studied and we are only beginning to understand the mechanisms underlying their development and function. Here, we review the general phylogeny and physiology of multiciliation and detail our current understanding of the developmental and cellular events underlying the specification, differentiation and function of multiciliated cells in vertebrates.
Collapse
Affiliation(s)
- Eric R Brooks
- Department of Molecular Biosciences and the Institute for Cell and Molecular Biology, the University of Texas at Austin, Patterson Labs, 2401 Speedway, Austin, TX 78712, USA.
| | - John B Wallingford
- Department of Molecular Biosciences and the Institute for Cell and Molecular Biology, the University of Texas at Austin, Patterson Labs, 2401 Speedway, Austin, TX 78712, USA; The Howard Hughes Medical Institute.
| |
Collapse
|
60
|
Choksi SP, Lauter G, Swoboda P, Roy S. Switching on cilia: transcriptional networks regulating ciliogenesis. Development 2014; 141:1427-41. [DOI: 10.1242/dev.074666] [Citation(s) in RCA: 205] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Cilia play many essential roles in fluid transport and cellular locomotion, and as sensory hubs for a variety of signal transduction pathways. Despite having a conserved basic morphology, cilia vary extensively in their shapes and sizes, ultrastructural details, numbers per cell, motility patterns and sensory capabilities. Emerging evidence indicates that this diversity, which is intimately linked to the different functions that cilia perform, is in large part programmed at the transcriptional level. Here, we review our understanding of the transcriptional control of ciliary biogenesis, highlighting the activities of FOXJ1 and the RFX family of transcriptional regulators. In addition, we examine how a number of signaling pathways, and lineage and cell fate determinants can induce and modulate ciliogenic programs to bring about the differentiation of distinct cilia types.
Collapse
Affiliation(s)
- Semil P. Choksi
- Institute of Molecular and Cell Biology, 61 Biopolis Drive, 138673 Singapore
| | - Gilbert Lauter
- Karolinska Institute, Department of Biosciences and Nutrition, S-141 83 Huddinge, Sweden
| | - Peter Swoboda
- Karolinska Institute, Department of Biosciences and Nutrition, S-141 83 Huddinge, Sweden
| | - Sudipto Roy
- Institute of Molecular and Cell Biology, 61 Biopolis Drive, 138673 Singapore
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, 117543 Singapore
| |
Collapse
|
61
|
Chung MI, Kwon T, Tu F, Brooks ER, Gupta R, Meyer M, Baker JC, Marcotte EM, Wallingford JB. Coordinated genomic control of ciliogenesis and cell movement by RFX2. eLife 2014; 3:e01439. [PMID: 24424412 PMCID: PMC3889689 DOI: 10.7554/elife.01439] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Accepted: 11/27/2013] [Indexed: 12/16/2022] Open
Abstract
The mechanisms linking systems-level programs of gene expression to discrete cell biological processes in vivo remain poorly understood. In this study, we have defined such a program for multi-ciliated epithelial cells (MCCs), a cell type critical for proper development and homeostasis of the airway, brain and reproductive tracts. Starting from genomic analysis of the cilia-associated transcription factor Rfx2, we used bioinformatics and in vivo cell biological approaches to gain insights into the molecular basis of cilia assembly and function. Moreover, we discovered a previously un-recognized role for an Rfx factor in cell movement, finding that Rfx2 cell-autonomously controls apical surface expansion in nascent MCCs. Thus, Rfx2 coordinates multiple, distinct gene expression programs in MCCs, regulating genes that control cell movement, ciliogenesis, and cilia function. As such, the work serves as a paradigm for understanding genomic control of cell biological processes that span from early cell morphogenetic events to terminally differentiated cellular functions. DOI: http://dx.doi.org/10.7554/eLife.01439.001.
Collapse
Affiliation(s)
- Mei-I Chung
- Department of Molecular Biosciences, University of Texas at Austin, Austin, United States
| | - Taejoon Kwon
- Department of Molecular Biosciences, University of Texas at Austin, Austin, United States
| | - Fan Tu
- Department of Molecular Biosciences, University of Texas at Austin, Austin, United States
| | - Eric R Brooks
- Department of Molecular Biosciences, University of Texas at Austin, Austin, United States
| | - Rakhi Gupta
- Department of Genetics, Stanford University, Stanford, United States
| | - Matthew Meyer
- Department of Molecular Biosciences, University of Texas at Austin, Austin, United States
| | - Julie C Baker
- Department of Genetics, Stanford University, Stanford, United States
| | - Edward M Marcotte
- Department of Molecular Biosciences, University of Texas at Austin, Austin, United States
- Center for Systems and Synthetic Biology, University of Texas at Austin, Austin, United States
- Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, United States
| | - John B Wallingford
- Department of Molecular Biosciences, University of Texas at Austin, Austin, United States
- Center for Systems and Synthetic Biology, University of Texas at Austin, Austin, United States
- Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, United States
- Howard Hughes Medical Institute, University of Texas at Austin, Austin, United States
| |
Collapse
|