1
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Wang L, Gao L, Chen Y, Xu B. Transcriptional regulation of CCNO during the formation of multiple motile cilia. Biochem Biophys Res Commun 2024; 735:150428. [PMID: 39094231 DOI: 10.1016/j.bbrc.2024.150428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 07/14/2024] [Accepted: 07/18/2024] [Indexed: 08/04/2024]
Abstract
Primary ciliary dyskinesia (PCD) is a group of genetically heterogeneous disorders characterized by clinical manifestations resulting from abnormal ciliary motility. Mutations in critical genes, such as Cyclin O (CCNO), have been associated with severe respiratory disease, though limited data are currently available. Here we show that CCNO deficient ciliated cells can only form a reduced number of fully functional centrioles that can mature into ciliated basal bodies, and their transport and anchoring to the top of the plasma membrane are abnormal. Furthermore, we observed that CCNO localizes not only in the cytoplasm but also in the nucleus during the early stages of ciliogenesis, and this dual localization persists into adulthood. Transcriptome analysis revealed downregulation of genes involved in cilia assembly and movement, along with altered transcription factors associated with ciliation upon CCNO depletion. These findings indicate that CCNO may serve as a key regulator in the transcriptional regulation of multiciliogenesis.
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Affiliation(s)
- Lina Wang
- Department of Respiratory Medicine, National Clinical Research Center of Respiratory Diseases, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 100045, China
| | - Liwei Gao
- Department of Respiratory Medicine, National Clinical Research Center of Respiratory Diseases, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 100045, China
| | - Yinghong Chen
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, China
| | - BaoPing Xu
- Department of Respiratory Medicine, National Clinical Research Center of Respiratory Diseases, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 100045, China.
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2
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Li D, Kok CYL, Wang C, Ray D, Osterburg S, Dötsch V, Ghosh S, Sabapathy K. Dichotomous transactivation domains contribute to growth inhibitory and promotion functions of TAp73. Proc Natl Acad Sci U S A 2024; 121:e2318591121. [PMID: 38739802 PMCID: PMC11127001 DOI: 10.1073/pnas.2318591121] [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: 11/09/2023] [Accepted: 03/22/2024] [Indexed: 05/16/2024] Open
Abstract
The transcription factor p73, a member of the p53 tumor-suppressor family, regulates cell death and also supports tumorigenesis, although the mechanistic basis for the dichotomous functions is poorly understood. We report here the identification of an alternate transactivation domain (TAD) located at the extreme carboxyl (C) terminus of TAp73β, a commonly expressed p73 isoform. Mutational disruption of this TAD significantly reduced TAp73β's transactivation activity, to a level observed when the amino (N)-TAD that is similar to p53's TAD, is mutated. Mutation of both TADs almost completely abolished TAp73β's transactivation activity. Expression profiling highlighted a unique set of targets involved in extracellular matrix-receptor interaction and focal adhesion regulated by the C-TAD, resulting in FAK phosphorylation, distinct from the N-TAD targets that are common to p53 and are involved in growth inhibition. Interestingly, the C-TAD targets are also regulated by the oncogenic, amino-terminal-deficient DNp73β isoform. Consistently, mutation of C-TAD reduces cellular migration and proliferation. Mechanistically, selective binding of TAp73β to DNAJA1 is required for the transactivation of C-TAD target genes, and silencing DNAJA1 expression abrogated all C-TAD-mediated effects. Taken together, our results provide a mechanistic basis for the dichotomous functions of TAp73 in the regulation of cellular growth through its distinct TADs.
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Affiliation(s)
- Dan Li
- Division of Cellular and Molecular Research, National Cancer Centre Singapore, Singapore168583, Singapore
| | - Catherine Yen Li Kok
- Division of Cellular and Molecular Research, National Cancer Centre Singapore, Singapore168583, Singapore
| | - Chao Wang
- Division of Cellular and Molecular Research, National Cancer Centre Singapore, Singapore168583, Singapore
| | - Debleena Ray
- Programme in Cancer and Stem Cell Biology, Duke-National University of Singapore (NUS) Medical School, Singapore169857, Singapore
| | - Susanne Osterburg
- Institute of Biophysical Chemistry and Center for Biomolecular Magnetic Resonance and Cluster of Excellence Macromolecular Complexes (CEF), Goethe University, Frankfurt am Main60438, Germany
| | - Volker Dötsch
- Institute of Biophysical Chemistry and Center for Biomolecular Magnetic Resonance and Cluster of Excellence Macromolecular Complexes (CEF), Goethe University, Frankfurt am Main60438, Germany
| | - Sujoy Ghosh
- Centre for Computational Biology & Programme in Cardiovascular and Metabolic Disorders, Duke-National University of Singapore (NUS) Medical School, Singapore169857, Singapore
| | - Kanaga Sabapathy
- Division of Cellular and Molecular Research, National Cancer Centre Singapore, Singapore168583, Singapore
- School of Biological Sciences, Nanyang Technological University, Singapore637551, Singapore
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3
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Crystal RG. Are Airway Epithelial p73 Levels a Therapeutic Target to Treat Chronic Obstructive Pulmonary Disease? Am J Respir Crit Care Med 2024; 209:123-124. [PMID: 38051107 PMCID: PMC10806430 DOI: 10.1164/rccm.202311-2073ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 12/04/2023] [Indexed: 12/07/2023] Open
Affiliation(s)
- Ronald G Crystal
- Department of Genetic Medicine Weill Cornell Medical College New York, New York
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4
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Richmond BW, Marshall CB, Blackburn JB, Tufenkjian TS, Lehmann BD, Han W, Newcomb D, Gutor SS, Hunt RP, Michell DL, Vickers KC, Polosukhin VV, Blackwell TS, Pietenpol JA. Loss of p73 Expression Contributes to Chronic Obstructive Pulmonary Disease. Am J Respir Crit Care Med 2024; 209:153-163. [PMID: 37931077 PMCID: PMC10806417 DOI: 10.1164/rccm.202303-0503oc] [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: 03/15/2023] [Accepted: 11/06/2023] [Indexed: 11/08/2023] Open
Abstract
Rationale: Multiciliated cell (MCC) loss and/or dysfunction is common in the small airways of patients with chronic obstructive pulmonary disease (COPD), but it is unclear if this contributes to COPD lung pathology. Objectives: To determine if loss of p73 causes a COPD-like phenotype in mice and explore whether smoking or COPD impact p73 expression. Methods: p73floxE7-E9 mice were crossed with Shh-Cre mice to generate mice lacking MCCs in the airway epithelium. The resulting p73Δairway mice were analyzed using electron microscopy, flow cytometry, morphometry, forced oscillation technique, and single-cell RNA sequencing. Furthermore, the effects of cigarette smoke on p73 transcript and protein expression were examined using in vitro and in vivo models and in studies including airway epithelium from smokers and patients with COPD. Measurements and Main Results: Loss of functional p73 in the respiratory epithelium resulted in a near-complete absence of MCCs in p73Δairway mice. In adulthood, these mice spontaneously developed neutrophilic inflammation and emphysema-like lung remodeling and had progressive loss of secretory cells. Exposure of normal airway epithelium cells to cigarette smoke rapidly and durably suppressed p73 expression in vitro and in vivo. Furthermore, tumor protein 73 mRNA expression was reduced in the airways of current smokers (n = 82) compared with former smokers (n = 69), and p73-expressing MCCs were reduced in the small airways of patients with COPD (n = 11) compared with control subjects without COPD (n = 12). Conclusions: Loss of functional p73 in murine airway epithelium results in the absence of MCCs and promotes COPD-like lung pathology. In smokers and patients with COPD, loss of p73 may contribute to MCC loss or dysfunction.
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Affiliation(s)
- Bradley W. Richmond
- Department of Veterans Affairs Medical Center, Nashville, Tennessee
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, and
- Department of Cell and Developmental Biology
| | - Clayton B. Marshall
- Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee; and
- Department of Biochemistry, and
| | - Jessica B. Blackburn
- Department of Veterans Affairs Medical Center, Nashville, Tennessee
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, and
| | - Tiffany S. Tufenkjian
- Department of Veterans Affairs Medical Center, Nashville, Tennessee
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, and
| | - Brian D. Lehmann
- Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee; and
- Department of Medicine, Vanderbilt University, Nashville, Tennessee
| | - Wei Han
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, and
| | - Dawn Newcomb
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, and
| | - Sergey S. Gutor
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, and
| | - Raphael P. Hunt
- Department of Veterans Affairs Medical Center, Nashville, Tennessee
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, and
| | | | - Kasey C. Vickers
- Department of Medicine, Vanderbilt University, Nashville, Tennessee
| | - Vasiliy V. Polosukhin
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, and
| | - Timothy S. Blackwell
- Department of Veterans Affairs Medical Center, Nashville, Tennessee
- Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, and
- Department of Cell and Developmental Biology
| | - Jennifer A. Pietenpol
- Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee; and
- Department of Biochemistry, and
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5
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Lyu Q, Li Q, Zhou J, Zhao H. Formation and function of multiciliated cells. J Cell Biol 2024; 223:e202307150. [PMID: 38032388 PMCID: PMC10689204 DOI: 10.1083/jcb.202307150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/29/2023] [Accepted: 11/14/2023] [Indexed: 12/01/2023] Open
Abstract
In vertebrates, multiciliated cells (MCCs) are terminally differentiated cells that line the airway tracts, brain ventricles, and reproductive ducts. Each MCC contains dozens to hundreds of motile cilia that beat in a synchronized manner to drive fluid flow across epithelia, the dysfunction of which is associated with a group of human diseases referred to as motile ciliopathies, such as primary cilia dyskinesia. Given the dynamic and complex process of multiciliogenesis, the biological events essential for forming multiple motile cilia are comparatively unelucidated. Thanks to advancements in genetic tools, omics technologies, and structural biology, significant progress has been achieved in the past decade in understanding the molecular mechanism underlying the regulation of multiple motile cilia formation. In this review, we discuss recent studies with ex vivo culture MCC and animal models, summarize current knowledge of multiciliogenesis, and particularly highlight recent advances and their implications.
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Affiliation(s)
- Qian Lyu
- Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Qingchao Li
- Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Shandong Normal University, Jinan, China
| | - Jun Zhou
- Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Shandong Normal University, Jinan, China
- State Key Laboratory of Medicinal Chemical Biology, Haihe Laboratory of Cell Ecosystem, College of Life Sciences, Nankai University, Tianjin, China
| | - Huijie Zhao
- Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, Collaborative Innovation Center of Cell Biology in Universities of Shandong, College of Life Sciences, Shandong Normal University, Jinan, China
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6
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Wesselman HM, Arceri L, Nguyen TK, Lara CM, Wingert RA. Genetic mechanisms of multiciliated cell development: from fate choice to differentiation in zebrafish and other models. FEBS J 2023. [PMID: 37997009 DOI: 10.1111/febs.17012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 10/17/2023] [Accepted: 11/21/2023] [Indexed: 11/25/2023]
Abstract
Multiciliated cells (MCCS) form bundles of cilia and their activities are essential for the proper development and physiology of many organ systems. Not surprisingly, defects in MCCs have profound consequences and are associated with numerous disease states. Here, we discuss the current understanding of MCC formation, with a special focus on the genetic and molecular mechanisms of MCC fate choice and differentiation. Furthermore, we cast a spotlight on the use of zebrafish to study MCC ontogeny and several recent advances made in understanding MCCs using this vertebrate model to delineate mechanisms of MCC emergence in the developing kidney.
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Affiliation(s)
| | - Liana Arceri
- Department of Biological Sciences, University of Notre Dame, IN, USA
| | - Thanh Khoa Nguyen
- Department of Biological Sciences, University of Notre Dame, IN, USA
| | - Caroline M Lara
- Department of Biological Sciences, University of Notre Dame, IN, USA
| | - Rebecca A Wingert
- Department of Biological Sciences, University of Notre Dame, IN, USA
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7
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Strubel A, Münick P, Hartmann O, Chaikuad A, Dreier B, Schaefer JV, Gebel J, Osterburg C, Tuppi M, Schäfer B, Buck V, Rosenfeldt M, Knapp S, Plückthun A, Diefenbacher ME, Dötsch V. DARPins detect the formation of hetero-tetramers of p63 and p73 in epithelial tissues and in squamous cell carcinoma. Cell Death Dis 2023; 14:674. [PMID: 37828008 PMCID: PMC10570377 DOI: 10.1038/s41419-023-06213-0] [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: 08/30/2023] [Revised: 09/15/2023] [Accepted: 10/03/2023] [Indexed: 10/14/2023]
Abstract
The two p53 homologues p63 and p73 regulate transcriptional programs in epithelial tissues and several cell types in these tissues express both proteins. All members of the p53 family form tetramers in their active state through a dedicated oligomerization domain that structurally assembles as a dimer of dimers. The oligomerization domain of p63 and p73 share a high sequence identity, but the p53 oligomerization domain is more divergent and it lacks a functionally important C-terminal helix present in the other two family members. Based on these structural differences, p53 does not hetero-oligomerize with p63 or p73. In contrast, p63 and p73 form hetero-oligomers of all possible stoichiometries, with the hetero-tetramer built from a p63 dimer and a p73 dimer being thermodynamically more stable than the two homo-tetramers. This predicts that in cells expressing both proteins a p632/p732 hetero-tetramer is formed. So far, the tools to investigate the biological function of this hetero-tetramer have been missing. Here we report the generation and characterization of Designed Ankyrin Repeat Proteins (DARPins) that bind with high affinity and selectivity to the p632/p732 hetero-tetramer. Using these DARPins we were able to confirm experimentally the existence of this hetero-tetramer in epithelial mouse and human tissues and show that its level increases in squamous cell carcinoma.
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Affiliation(s)
- Alexander Strubel
- Institute of Biophysical Chemistry and Center for Biomolecular Magnetic Resonance, Goethe University, 60438, Frankfurt, Germany
| | - Philipp Münick
- Institute of Biophysical Chemistry and Center for Biomolecular Magnetic Resonance, Goethe University, 60438, Frankfurt, Germany
| | - Oliver Hartmann
- Department of Biochemistry and Molecular Biology I, University of Würzburg, 97074, Würzburg, Germany
| | - Apirat Chaikuad
- Institute of Pharmaceutical Chemistry, Goethe University, 60438, Frankfurt, Germany
- Structural Genomics Consortium, Goethe University, 60438, Frankfurt, Germany
| | - Birgit Dreier
- Department of Biochemistry, University of Zurich, 8057, Zurich, Switzerland
| | - Jonas V Schaefer
- Department of Biochemistry, University of Zurich, 8057, Zurich, Switzerland
| | - Jakob Gebel
- Institute of Biophysical Chemistry and Center for Biomolecular Magnetic Resonance, Goethe University, 60438, Frankfurt, Germany
| | - Christian Osterburg
- Institute of Biophysical Chemistry and Center for Biomolecular Magnetic Resonance, Goethe University, 60438, Frankfurt, Germany
| | - Marcel Tuppi
- Institute of Biophysical Chemistry and Center for Biomolecular Magnetic Resonance, Goethe University, 60438, Frankfurt, Germany
| | - Birgit Schäfer
- Institute of Biophysical Chemistry and Center for Biomolecular Magnetic Resonance, Goethe University, 60438, Frankfurt, Germany
| | - Viktoria Buck
- Department of Pathology, University of Würzburg, 97074, Würzburg, Germany
| | - Mathias Rosenfeldt
- Department of Pathology, University of Würzburg, 97074, Würzburg, Germany
| | - Stefan Knapp
- Institute of Pharmaceutical Chemistry, Goethe University, 60438, Frankfurt, Germany
- Structural Genomics Consortium, Goethe University, 60438, Frankfurt, Germany
| | - Andreas Plückthun
- Department of Biochemistry, University of Zurich, 8057, Zurich, Switzerland
| | - Markus E Diefenbacher
- Department of Biochemistry and Molecular Biology I, University of Würzburg, 97074, Würzburg, Germany
| | - Volker Dötsch
- Institute of Biophysical Chemistry and Center for Biomolecular Magnetic Resonance, Goethe University, 60438, Frankfurt, Germany.
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8
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Cumplido-Laso G, Benitez DA, Mulero-Navarro S, Carvajal-Gonzalez JM. Transcriptional Regulation of Airway Epithelial Cell Differentiation: Insights into the Notch Pathway and Beyond. Int J Mol Sci 2023; 24:14789. [PMID: 37834236 PMCID: PMC10573127 DOI: 10.3390/ijms241914789] [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: 07/12/2023] [Revised: 09/15/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
The airway epithelium is a critical component of the respiratory system, serving as a barrier against inhaled pathogens and toxins. It is composed of various cell types, each with specific functions essential to proper airway function. Chronic respiratory diseases can disrupt the cellular composition of the airway epithelium, leading to a decrease in multiciliated cells (MCCs) and an increase in secretory cells (SCs). Basal cells (BCs) have been identified as the primary stem cells in the airway epithelium, capable of self-renewal and differentiation into MCCs and SCs. This review emphasizes the role of transcription factors in the differentiation process from BCs to MCCs and SCs. Recent advancements in single-cell RNA sequencing (scRNAseq) techniques have provided insights into the cellular composition of the airway epithelium, revealing specialized and rare cell types, including neuroendocrine cells, tuft cells, and ionocytes. Understanding the cellular composition and differentiation processes within the airway epithelium is crucial for developing targeted therapies for respiratory diseases. Additionally, the maintenance of BC populations and the involvement of Notch signaling in BC self-renewal and differentiation are discussed. Further research in these areas could provide valuable insights into the mechanisms underlying airway epithelial homeostasis and disease pathogenesis.
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Affiliation(s)
- Guadalupe Cumplido-Laso
- Departamento de Bioquímica, Biología Molecular y Genética, Facultad de Ciencias, Universidad de Extremadura, 06071 Badajoz, Spain; (D.A.B.); (S.M.-N.)
| | | | | | - Jose Maria Carvajal-Gonzalez
- Departamento de Bioquímica, Biología Molecular y Genética, Facultad de Ciencias, Universidad de Extremadura, 06071 Badajoz, Spain; (D.A.B.); (S.M.-N.)
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9
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Kong X, Yan W, Sun W, Zhang Y, Yang HJ, Chen M, Chen H, de Vere White RW, Zhang J, Chen X. Isoform-specific disruption of the TP73 gene reveals a critical role for TAp73γ in tumorigenesis via leptin. eLife 2023; 12:e82115. [PMID: 37650871 PMCID: PMC10471163 DOI: 10.7554/elife.82115] [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: 07/23/2022] [Accepted: 08/01/2023] [Indexed: 09/01/2023] Open
Abstract
TP73, a member of the p53 family, is expressed as TAp73 and ΔNp73 along with multiple C-terminal isoforms (α-η). ΔNp73 is primarily expressed in neuronal cells and necessary for neuronal development. Interestingly, while TAp73α is a tumor suppressor and predominantly expressed in normal cells, TAp73 is found to be frequently altered in human cancers, suggesting a role of TAp73 C-terminal isoforms in tumorigenesis. To test this, the TCGA SpliceSeq database was searched and showed that exon 11 (E11) exclusion occurs frequently in several human cancers. We also found that p73α to p73γ isoform switch resulting from E11 skipping occurs frequently in human prostate cancers and dog lymphomas. To determine whether p73α to p73γ isoform switch plays a role in tumorigenesis, CRISPR technology was used to generate multiple cancer cell lines and a mouse model in that Trp73 E11 is deleted. Surprisingly, we found that in E11-deificient cells, p73γ becomes the predominant isoform and exerts oncogenic activities by promoting cell proliferation and migration. In line with this, E11-deficient mice were more prone to obesity and B-cell lymphomas, indicating a unique role of p73γ in lipid metabolism and tumorigenesis. Additionally, we found that E11-deficient mice phenocopies Trp73-deficient mice with short lifespan, infertility, and chronic inflammation. Mechanistically, we showed that Leptin, a pleiotropic adipocytokine involved in energy metabolism and oncogenesis, was highly induced by p73γ,necessary for p73γ-mediated oncogenic activity, and associated with p73α to γ isoform switch in human prostate cancer and dog lymphoma. Finally, we showed that E11-knockout promoted, whereas knockdown of p73γ or Leptin suppressed, xenograft growth in mice. Our study indicates that the p73γ-Leptin pathway promotes tumorigenesis and alters lipid metabolism, which may be targeted for cancer management.
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Affiliation(s)
- Xiangmudong Kong
- Comparative Oncology Laboratory, Schools of Veterinary Medicine and Medicine, University of California, DavisDavisUnited States
| | - Wensheng Yan
- Comparative Oncology Laboratory, Schools of Veterinary Medicine and Medicine, University of California, DavisDavisUnited States
| | - Wenqiang Sun
- Comparative Oncology Laboratory, Schools of Veterinary Medicine and Medicine, University of California, DavisDavisUnited States
| | - Yanhong Zhang
- Comparative Oncology Laboratory, Schools of Veterinary Medicine and Medicine, University of California, DavisDavisUnited States
| | - Hee Jung Yang
- Comparative Oncology Laboratory, Schools of Veterinary Medicine and Medicine, University of California, DavisDavisUnited States
| | - Mingyi Chen
- Department of Pathology, University of Texas Southwestern Medical CenterDallasUnited States
| | - Hongwu Chen
- Department of Biochemistry and Molecular Medicine, University of California, DavisDavisUnited States
| | - Ralph W de Vere White
- Department of Urology Surgery, School of Medicine, University of California, DavisDavisUnited States
| | - Jin Zhang
- Comparative Oncology Laboratory, Schools of Veterinary Medicine and Medicine, University of California, DavisDavisUnited States
| | - Xinbin Chen
- Comparative Oncology Laboratory, Schools of Veterinary Medicine and Medicine, University of California, DavisDavisUnited States
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10
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Moreau MX, Saillour Y, Elorriaga V, Bouloudi B, Delberghe E, Deutsch Guerrero T, Ochandorena-Saa A, Maeso-Alonso L, Marques MM, Marin MC, Spassky N, Pierani A, Causeret F. Repurposing of the multiciliation gene regulatory network in fate specification of Cajal-Retzius neurons. Dev Cell 2023; 58:1365-1382.e6. [PMID: 37321213 DOI: 10.1016/j.devcel.2023.05.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 04/06/2023] [Accepted: 05/19/2023] [Indexed: 06/17/2023]
Abstract
Cajal-Retzius cells (CRs) are key players in cerebral cortex development, and they display a unique transcriptomic identity. Here, we use scRNA-seq to reconstruct the differentiation trajectory of mouse hem-derived CRs, and we unravel the transient expression of a complete gene module previously known to control multiciliogenesis. However, CRs do not undergo centriole amplification or multiciliation. Upon deletion of Gmnc, the master regulator of multiciliogenesis, CRs are initially produced but fail to reach their normal identity resulting in their massive apoptosis. We further dissect the contribution of multiciliation effector genes and identify Trp73 as a key determinant. Finally, we use in utero electroporation to demonstrate that the intrinsic competence of hem progenitors as well as the heterochronic expression of Gmnc prevent centriole amplification in the CR lineage. Our work exemplifies how the co-option of a complete gene module, repurposed to control a distinct process, may contribute to the emergence of novel cell identities.
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Affiliation(s)
- Matthieu X Moreau
- Université Paris Cité, Imagine Institute, Team Genetics and Development of the Cerebral Cortex, 75015 Paris, France; Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris, INSERM U1266, 75014 Paris, France
| | - Yoann Saillour
- Université Paris Cité, Imagine Institute, Team Genetics and Development of the Cerebral Cortex, 75015 Paris, France; Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris, INSERM U1266, 75014 Paris, France
| | - Vicente Elorriaga
- Université Paris Cité, Imagine Institute, Team Genetics and Development of the Cerebral Cortex, 75015 Paris, France; Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris, INSERM U1266, 75014 Paris, France
| | - Benoît Bouloudi
- Institut de Biologie de l'Ecole Normale Supérieure (IBENS), Département de Biologie, Ecole Normale Supérieure, CNRS, INSERM, Université PSL, 75005 Paris, France
| | - Elodie Delberghe
- Université Paris Cité, Imagine Institute, Team Genetics and Development of the Cerebral Cortex, 75015 Paris, France; Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris, INSERM U1266, 75014 Paris, France
| | - Tanya Deutsch Guerrero
- Université Paris Cité, Imagine Institute, Team Genetics and Development of the Cerebral Cortex, 75015 Paris, France; Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris, INSERM U1266, 75014 Paris, France
| | - Amaia Ochandorena-Saa
- Université Paris Cité, Imagine-Institut Pasteur, Unit of Heart Morphogenesis, INSERM UMR1163, 75015 Paris, France
| | - Laura Maeso-Alonso
- Instituto de Biomedicina, y Departamento de Biología Molecular, Universidad de León, 24071 Leon, Spain
| | - Margarita M Marques
- Instituto de Desarrollo Ganadero y Sanidad Animal, y Departamento de Producción Animal, Universidad de León, 24071 Leon, Spain
| | - Maria C Marin
- Instituto de Biomedicina, y Departamento de Biología Molecular, Universidad de León, 24071 Leon, Spain
| | - Nathalie Spassky
- Institut de Biologie de l'Ecole Normale Supérieure (IBENS), Département de Biologie, Ecole Normale Supérieure, CNRS, INSERM, Université PSL, 75005 Paris, France
| | - Alessandra Pierani
- Université Paris Cité, Imagine Institute, Team Genetics and Development of the Cerebral Cortex, 75015 Paris, France; Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris, INSERM U1266, 75014 Paris, France
| | - Frédéric Causeret
- Université Paris Cité, Imagine Institute, Team Genetics and Development of the Cerebral Cortex, 75015 Paris, France; Université Paris Cité, Institute of Psychiatry and Neuroscience of Paris, INSERM U1266, 75014 Paris, France.
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11
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Hur SK, Somerville TD, Wu XS, Maia-Silva D, Demerdash OE, Tuveson DA, Notta F, Vakoc CR. p73 activates transcriptional signatures of basal lineage identity and ciliogenesis in pancreatic ductal adenocarcinoma. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.20.537667. [PMID: 37131797 PMCID: PMC10153254 DOI: 10.1101/2023.04.20.537667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
During the progression of pancreatic ductal adenocarcinoma (PDAC), tumor cells are known to acquire transcriptional and morphological properties of the basal (also known as squamous) epithelial lineage, which leads to more aggressive disease characteristics. Here, we show that a subset of basal-like PDAC tumors aberrantly express p73 (TA isoform), which is a known transcriptional activator of basal lineage identity, ciliogenesis, and tumor suppression in normal tissue development. Using gain- and loss- of function experiments, we show that p73 is necessary and sufficient to activate genes related to basal identity (e.g. KRT5), ciliogenesis (e.g. FOXJ1), and p53-like tumor suppression (e.g. CDKN1A) in human PDAC models. Owing to the paradoxical combination of oncogenic and tumor suppressive outputs of this transcription factor, we propose that PDAC cells express a low level of p73 that is optimal for promoting lineage plasticity without severe impairment of cell proliferation. Collectively, our study reinforces how PDAC cells exploit master regulators of the basal epithelial lineage during disease progression.
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Affiliation(s)
- Stella K. Hur
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, U.S.A
| | | | - Xiaoli S. Wu
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, U.S.A
| | - Diogo Maia-Silva
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, U.S.A
| | | | - David A. Tuveson
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, U.S.A
| | - Faiyaz Notta
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
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12
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Lewis M, Terré B, Knobel PA, Cheng T, Lu H, Attolini CSO, Smak J, Coyaud E, Garcia-Cao I, Sharma S, Vineethakumari C, Querol J, Gil-Gómez G, Piergiovanni G, Costanzo V, Peiró S, Raught B, Zhao H, Salvatella X, Roy S, Mahjoub MR, Stracker TH. GEMC1 and MCIDAS interactions with SWI/SNF complexes regulate the multiciliated cell-specific transcriptional program. Cell Death Dis 2023; 14:201. [PMID: 36932059 PMCID: PMC10023806 DOI: 10.1038/s41419-023-05720-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 03/18/2023]
Abstract
Multiciliated cells (MCCs) project dozens to hundreds of motile cilia from their apical surface to promote the movement of fluids or gametes in the mammalian brain, airway or reproductive organs. Differentiation of MCCs requires the sequential action of the Geminin family transcriptional activators, GEMC1 and MCIDAS, that both interact with E2F4/5-DP1. How these factors activate transcription and the extent to which they play redundant functions remains poorly understood. Here, we demonstrate that the transcriptional targets and proximal proteomes of GEMC1 and MCIDAS are highly similar. However, we identified distinct interactions with SWI/SNF subcomplexes; GEMC1 interacts primarily with the ARID1A containing BAF complex while MCIDAS interacts primarily with BRD9 containing ncBAF complexes. Treatment with a BRD9 inhibitor impaired MCIDAS-mediated activation of several target genes and compromised the MCC differentiation program in multiple cell based models. Our data suggest that the differential engagement of distinct SWI/SNF subcomplexes by GEMC1 and MCIDAS is required for MCC-specific transcriptional regulation and mediated by their distinct C-terminal domains.
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Affiliation(s)
- Michael Lewis
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, C/ Baldiri Reixac 10, Barcelona, 08028, Spain
| | - Berta Terré
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, C/ Baldiri Reixac 10, Barcelona, 08028, Spain
- MRC Clinical Trials Unit at UCL, London, UK
| | - Philip A Knobel
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, C/ Baldiri Reixac 10, Barcelona, 08028, Spain
- CDR-Life AG, Zurich, 8592, Switzerland
| | - Tao Cheng
- Washington University in St Louis, Departments of Medicine (Nephrology), Cell Biology and Physiology, St. Louis, MO, 20814, USA
| | - Hao Lu
- Institute of Molecular and Cell Biology, Proteos, 61 Biopolis Drive, Singapore, 138673, Singapore
| | - Camille Stephan-Otto Attolini
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, C/ Baldiri Reixac 10, Barcelona, 08028, Spain
| | - Jordann Smak
- National Cancer Institute, Radiation Oncology Branch, Bethesda, MD, 20892, USA
| | - Etienne Coyaud
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON, M5G 1L7, Canada
- Univ. Lille, Inserm, CHU Lille, U1192 - Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, F-59000, Lille, France
| | - Isabel Garcia-Cao
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, C/ Baldiri Reixac 10, Barcelona, 08028, Spain
| | - Shalu Sharma
- National Cancer Institute, Radiation Oncology Branch, Bethesda, MD, 20892, USA
| | - Chithran Vineethakumari
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, C/ Baldiri Reixac 10, Barcelona, 08028, Spain
| | - Jessica Querol
- Vall d'Hebron Institute of Oncology (VHIO), Barcelona, 08035, Spain
| | - Gabriel Gil-Gómez
- Apoptosis Signalling Group, IMIM (Institut Hospital del Mar d'Investigacions Mediques), Barcelona, 08003, Spain
| | - Gabriele Piergiovanni
- IFOM ETS, The AIRC Institute of Molecular Oncology, Milan, 20139, Italy
- Department of Oncology and Haematology-Oncology, University of Milan, Milan, 20139, Italy
| | - Vincenzo Costanzo
- IFOM ETS, The AIRC Institute of Molecular Oncology, Milan, 20139, Italy
- Department of Oncology and Haematology-Oncology, University of Milan, Milan, 20139, Italy
| | - Sandra Peiró
- Vall d'Hebron Institute of Oncology (VHIO), Barcelona, 08035, Spain
| | - Brian Raught
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON, M5G 1L7, Canada
| | - Haotian Zhao
- Department of Biomedical Sciences, New York Institute of Technology College of Osteopathic Medicine, Old Westbury, New York, NY, 11568, USA
| | - Xavier Salvatella
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, C/ Baldiri Reixac 10, Barcelona, 08028, Spain
- ICREA, Passeig Lluís Companys 23, 08010, Barcelona, Spain
| | - Sudipto Roy
- Institute of Molecular and Cell Biology, Proteos, 61 Biopolis Drive, Singapore, 138673, Singapore
- Department of Biological Sciences, National University of Singapore, 117543, Singapore, Singapore
- Department of Pediatrics, National University of Singapore, 119288, Singapore, Singapore
| | - Moe R Mahjoub
- Washington University in St Louis, Departments of Medicine (Nephrology), Cell Biology and Physiology, St. Louis, MO, 20814, USA
| | - Travis H Stracker
- Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, C/ Baldiri Reixac 10, Barcelona, 08028, Spain.
- National Cancer Institute, Radiation Oncology Branch, Bethesda, MD, 20892, USA.
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13
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Wu J, Lai Y, Wang K, Lai M, Jiang L, Xu Z, Shi J, Gao W. Therapeutic potential of recombinant human basic fibroblast growth factor on postoperative patients with chronic rhinosinusitis with nasal polyps. Clin Otolaryngol 2023; 48:294-304. [PMID: 35810356 DOI: 10.1111/coa.13955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 05/31/2022] [Accepted: 06/12/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To explore the effect of intranasal administration of recombinant human basic fibroblast growth factor (rh-bFGF) on postoperative chronic rhinosinusitis with nasal polyps (CRSwNP) patients. DESIGN A prospective, randomised, controlled, single-blinded trial. SETTING AND PARTICIPANTS Seventy-five hospitalised patients who met the criteria of primary bilateral CRSwNP were enrolled from March 2020 to January 2021. MAIN OUTCOME MEASURES Visual analogue scale, 22-item Sino-Nasal Outcome Test, Lund-Kennedy (L-K) system and scanning electron microscopy and quantitative real-time polymerase chain reaction. RESULTS Seventy-five patients with CRSwNP were randomly assigned to three groups, and 72 patients completed the 1-month medication regimen and 1-year follow-up. Rh-bFGF nasal-spray and drop application reduced general nasal VAS scores within 2 weeks after endoscopic sinus surgery (ESS) compared to the control group. In contrast, only rh-bFGF nasal-drops reduced SNOT-22 scores at 2 weeks and 1 year compared with the control group. A significant reduction in the endoscopic L-K score was observed in the rh-bFGF nasal-spray and drop group compared with the control group. This is primarily because rh-bFGF promotes cilia growth in the nasal mucosal epithelium after the operation, as illustrated by scanning electron microscopy and expression of CP110, Tap73 and Foxj1 mRNA. For eosinophilic CRSwNP, the general VAS score of rh-bFGF nasal-drops was more obviously reduced compared to the control group after ESS. A similar trend was observed for L-K score. CONCLUSIONS Rh-bFGF nasal-drops and sprays can quickly and effectively relieve postoperative symptoms and improve long-term prognosis of patients with CRSwNP. Moreover, rh-bFGF nasal-drops is also an effective method for postoperative patients with eosinophilic CRSwNP.
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Affiliation(s)
- Jian Wu
- Department of Otorhinolaryngology-Head and Neck Surgery, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, China
| | - Yinyan Lai
- Department of Otorhinolaryngology, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China
| | - Kanghua Wang
- Department of Otorhinolaryngology, The Seventh Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Shenzhen, China
| | - Ming Lai
- Department of Otorhinolaryngology, Clifford Hospital, Guangzhou, China
| | - Lijie Jiang
- Department of Otorhinolaryngology, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China
| | - Zhaofeng Xu
- Department of Otorhinolaryngology, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China
| | - Jianbo Shi
- Department of Otorhinolaryngology-Head and Neck Surgery, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, China.,Department of Otorhinolaryngology, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China
| | - Wenxiang Gao
- Department of Otorhinolaryngology, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, China
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14
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Rabiasz A, Ziętkiewicz E. Schmidtea mediterranea as a Model Organism to Study the Molecular Background of Human Motile Ciliopathies. Int J Mol Sci 2023; 24:ijms24054472. [PMID: 36901899 PMCID: PMC10002865 DOI: 10.3390/ijms24054472] [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] [Received: 02/01/2023] [Revised: 02/21/2023] [Accepted: 02/22/2023] [Indexed: 03/12/2023] Open
Abstract
Cilia and flagella are evolutionarily conserved organelles that form protrusions on the surface of many growth-arrested or differentiated eukaryotic cells. Due to the structural and functional differences, cilia can be roughly classified as motile and non-motile (primary). Genetically determined dysfunction of motile cilia is the basis of primary ciliary dyskinesia (PCD), a heterogeneous ciliopathy affecting respiratory airways, fertility, and laterality. In the face of the still incomplete knowledge of PCD genetics and phenotype-genotype relations in PCD and the spectrum of PCD-like diseases, a continuous search for new causative genes is required. The use of model organisms has been a great part of the advances in understanding molecular mechanisms and the genetic basis of human diseases; the PCD spectrum is not different in this respect. The planarian model (Schmidtea mediterranea) has been intensely used to study regeneration processes, and-in the context of cilia-their evolution, assembly, and role in cell signaling. However, relatively little attention has been paid to the use of this simple and accessible model for studying the genetics of PCD and related diseases. The recent rapid development of the available planarian databases with detailed genomic and functional annotations prompted us to review the potential of the S. mediterranea model for studying human motile ciliopathies.
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15
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Zhang J, Sun W, Yan W, Kong X, Shen T, Laubach K, Chen M, Chen X. TP73 Isoform-specific disruption reveals a critical role of TAp73beta in growth suppression and inflammatory response. Cell Death Dis 2023; 14:14. [PMID: 36631448 PMCID: PMC9834251 DOI: 10.1038/s41419-022-05529-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 12/12/2022] [Accepted: 12/20/2022] [Indexed: 01/13/2023]
Abstract
TP73 is expressed as multiple N- and C-terminal isoforms through two separate promoters or alternative splicing. While N-terminal p73 isoforms have been well studied, very little is known about p73 C-terminal isoforms. Thus, CRISPR was used to delete TP73 Exon13 (E13-KO) to induce p73α to p73β isoform switch. We showed that E13-KO led to decreased cell proliferation and migration and sensitized cells to ferroptosis, which can be reverted by knockdown of TAp73β in E13-KO cells. To understand the biological function of p73β in vivo, we generated a mouse model in that the Trp73 E13 was deleted by CRISPR. We showed that p73α to p73β isoform switch led to increased cellular senescence in mouse embryonic fibroblasts. We also showed that E13-deficient mice exhibited shorter life span and were prone to spontaneous tumors, chronic inflammation and liver steatosis as compared to WT mice. Additionally, we found that the incidence of chronic inflammation and liver steatosis was higher in E13-deficient mice than that in Trp73-deficient mice, suggesting that p73β is a strong inducer of inflammatory response. Mechanistically, we showed that TAp73β was able to induce cysteine dioxygenase 1 (CDO-1), leading to cysteine depletion and subsequently, enhanced ferroptosis and growth suppression. Conversely, knockdown of CDO-1 was able to alleviate the growth suppression and ferroptosis in E13-KO cells. Together, our data suggest that at a physiologically relevant level, TAp73β is a strong inducer of growth suppression but insufficient to compensate for loss of TAp73α in tumor suppression due to aberrant induction of inflammatory response and liver steatosis.
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Affiliation(s)
- Jin Zhang
- Comparative Oncology Laboratory, Schools of Veterinary Medicine and Medicine, UC Davis, California, Davis, USA.
| | - Wenqiang Sun
- Comparative Oncology Laboratory, Schools of Veterinary Medicine and Medicine, UC Davis, California, Davis, USA
- Department of Animal Science and Technology, Sichuan Agricultural University, Ya'an, China
| | - Wensheng Yan
- Comparative Oncology Laboratory, Schools of Veterinary Medicine and Medicine, UC Davis, California, Davis, USA
- Berkeley Regional Lab, Pathology/Lab-Histology Department, The Permanente Medical group, Berkeley, CA, 94085, USA
| | - Xiangmudong Kong
- Comparative Oncology Laboratory, Schools of Veterinary Medicine and Medicine, UC Davis, California, Davis, USA
| | - Tong Shen
- West Coast Metabolomics Center, UC Davis, Califronia, Davis, USA
| | - Kyra Laubach
- Comparative Oncology Laboratory, Schools of Veterinary Medicine and Medicine, UC Davis, California, Davis, USA
| | - Mingyi Chen
- Department of Pathology, Southwestern Medical Center, University of Texas, Dallas, USA
| | - Xinbin Chen
- Comparative Oncology Laboratory, Schools of Veterinary Medicine and Medicine, UC Davis, California, Davis, USA.
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16
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Ignatenko O, Malinen S, Rybas S, Vihinen H, Nikkanen J, Kononov A, Jokitalo ES, Ince-Dunn G, Suomalainen A. Mitochondrial dysfunction compromises ciliary homeostasis in astrocytes. J Biophys Biochem Cytol 2022; 222:213692. [PMID: 36383135 PMCID: PMC9674092 DOI: 10.1083/jcb.202203019] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 08/19/2022] [Accepted: 10/07/2022] [Indexed: 11/17/2022] Open
Abstract
Astrocytes, often considered as secondary responders to neurodegeneration, are emerging as primary drivers of brain disease. Here we show that mitochondrial DNA depletion in astrocytes affects their primary cilium, the signaling organelle of a cell. The progressive oxidative phosphorylation deficiency in astrocytes induces FOXJ1 and RFX transcription factors, known as master regulators of motile ciliogenesis. Consequently, a robust gene expression program involving motile cilia components and multiciliated cell differentiation factors are induced. While the affected astrocytes still retain a single cilium, these organelles elongate and become remarkably distorted. The data suggest that chronic activation of the mitochondrial integrated stress response (ISRmt) in astrocytes drives anabolic metabolism and promotes ciliary elongation. Collectively, our evidence indicates that an active signaling axis involving mitochondria and primary cilia exists and that ciliary signaling is part of ISRmt in astrocytes. We propose that metabolic ciliopathy is a novel pathomechanism for mitochondria-related neurodegenerative diseases.
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Affiliation(s)
- Olesia Ignatenko
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Satu Malinen
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Sofiia Rybas
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Helena Vihinen
- Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Joni Nikkanen
- Cardiovascular Research Institute, University of California, San Francisco, CA
| | | | - Eija S. Jokitalo
- Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Gulayse Ince-Dunn
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Anu Suomalainen
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland,HUS Diagnostics, Helsinki University Hospital, Helsinki, Finland
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17
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Kim YA, Hodzic E, Amgalan B, Saslafsky A, Wojtowicz D, Przytycka TM. Mutational Signatures as Sensors of Environmental Exposures: Analysis of Smoking-Induced Lung Tissue Remodeling. Biomolecules 2022; 12:biom12101384. [PMID: 36291592 PMCID: PMC9599238 DOI: 10.3390/biom12101384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 11/23/2022] Open
Abstract
Smoking is a widely recognized risk factor in the emergence of cancers and other lung diseases. Studies of non-cancer lung diseases typically investigate the role that smoking has in chronic changes in lungs that might predispose patients to the diseases, whereas most cancer studies focus on the mutagenic properties of smoking. Large-scale cancer analysis efforts have collected expression data from both tumor and control lung tissues, and studies have used control samples to estimate the impact of smoking on gene expression. However, such analyses may be confounded by tumor-related micro-environments as well as patient-specific exposure to smoking. Thus, in this paper, we explore the utilization of mutational signatures to study environment-induced changes of gene expression in control lung tissues from lung adenocarcinoma samples. We show that a joint computational analysis of mutational signatures derived from sequenced tumor samples, and the gene expression obtained from control samples, can shed light on the combined impact that smoking and tumor-related micro-environments have on gene expression and cell-type composition in non-neoplastic (control) lung tissue. The results obtained through such analysis are both supported by experimental studies, including studies utilizing single-cell technology, and also suggest additional novel insights. We argue that the study provides a proof of principle of the utility of mutational signatures to be used as sensors of environmental exposures not only in the context of the mutational landscape of cancer, but also as a reference for changes in non-cancer lung tissues. It also provides an example of how a database collected with the purpose of understanding cancer can provide valuable information for studies not directly related to the disease.
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18
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Disruption of GMNC-MCIDAS multiciliogenesis program is critical in choroid plexus carcinoma development. Cell Death Differ 2022; 29:1596-1610. [PMID: 35322202 PMCID: PMC9345885 DOI: 10.1038/s41418-022-00950-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 01/17/2022] [Accepted: 01/31/2022] [Indexed: 11/21/2022] Open
Abstract
Multiciliated cells (MCCs) in the brain reside in the ependyma and the choroid plexus (CP) epithelia. The CP secretes cerebrospinal fluid that circulates within the ventricular system, driven by ependymal cilia movement. Tumors of the CP are rare primary brain neoplasms mostly found in children. CP tumors exist in three forms: CP papilloma (CPP), atypical CPP, and CP carcinoma (CPC). Though CPP and atypical CPP are generally benign and can be resolved by surgery, CPC is a particularly aggressive and little understood cancer with a poor survival rate and a tendency for recurrence and metastasis. In contrast to MCCs in the CP epithelia, CPCs in humans are characterized by solitary cilia, frequent TP53 mutations, and disturbances to multiciliogenesis program directed by the GMNC-MCIDAS transcriptional network. GMNC and MCIDAS are early transcriptional regulators of MCC fate differentiation in diverse tissues. Consistently, components of the GMNC-MCIDAS transcriptional program are expressed during CP development and required for multiciliation in the CP, while CPC driven by deletion of Trp53 and Rb1 in mice exhibits multiciliation defects consequent to deficiencies in the GMNC-MCIDAS program. Previous studies revealed that abnormal NOTCH pathway activation leads to CPP. Here we show that combined defects in NOTCH and Sonic Hedgehog signaling in mice generates tumors that are similar to CPC in humans. NOTCH-driven CP tumors are monociliated, and disruption of the NOTCH complex restores multiciliation and decreases tumor growth. NOTCH suppresses multiciliation in tumor cells by inhibiting the expression of GMNC and MCIDAS, while Gmnc-Mcidas overexpression rescues multiciliation defects and suppresses tumor cell proliferation. Taken together, these findings indicate that reactivation of the GMNC-MCIDAS multiciliogenesis program is critical for inhibiting tumorigenesis in the CP, and it may have therapeutic implications for the treatment of CPC.
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19
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Wildung M, Herr C, Riedel D, Wiedwald C, Moiseenko A, Ramírez F, Tasena H, Heimerl M, Alevra M, Movsisyan N, Schuldt M, Volceanov-Hahn L, Provoost S, Nöthe-Menchen T, Urrego D, Freytag B, Wallmeier J, Beisswenger C, Bals R, van den Berge M, Timens W, Hiemstra PS, Brandsma CA, Maes T, Andreas S, Heijink IH, Pardo LA, Lizé M. miR449 Protects Airway Regeneration by Controlling AURKA/HDAC6-Mediated Ciliary Disassembly. Int J Mol Sci 2022; 23:ijms23147749. [PMID: 35887096 PMCID: PMC9320302 DOI: 10.3390/ijms23147749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/08/2022] [Accepted: 07/10/2022] [Indexed: 01/25/2023] Open
Abstract
Airway mucociliary regeneration and function are key players for airway defense and are impaired in chronic obstructive pulmonary disease (COPD). Using transcriptome analysis in COPD-derived bronchial biopsies, we observed a positive correlation between cilia-related genes and microRNA-449 (miR449). In vitro, miR449 was strongly increased during airway epithelial mucociliary differentiation. In vivo, miR449 was upregulated during recovery from chemical or infective insults. miR0449−/− mice (both alleles are deleted) showed impaired ciliated epithelial regeneration after naphthalene and Haemophilus influenzae exposure, accompanied by more intense inflammation and emphysematous manifestations of COPD. The latter occurred spontaneously in aged miR449−/− mice. We identified Aurora kinase A and its effector target HDAC6 as key mediators in miR449-regulated ciliary homeostasis and epithelial regeneration. Aurora kinase A is downregulated upon miR449 overexpression in vitro and upregulated in miR449−/− mouse lungs. Accordingly, imaging studies showed profoundly altered cilia length and morphology accompanied by reduced mucociliary clearance. Pharmacological inhibition of HDAC6 rescued cilia length and coverage in miR449−/− cells, consistent with its tubulin-deacetylating function. Altogether, our study establishes a link between miR449, ciliary dysfunction, and COPD pathogenesis.
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Affiliation(s)
- Merit Wildung
- Molecular & Experimental Pneumology Group, Clinic for Cardiology and Pneumology, University Medical Center Goettingen, 37075 Gottingen, Germany; (M.W.); (C.W.); (M.H.); (L.V.-H.); (S.A.)
- Molecular Oncology, University Medical Center Goettingen, 37077 Goettingen, Germany; (M.S.); (B.F.)
| | - Christian Herr
- Department of Internal Medicine V, Saarland University, 66421 Homburg, Germany; (C.H.); (C.B.); (R.B.)
| | - Dietmar Riedel
- Laboratory for Electron Microscopy, Max Planck Institute for Multidisciplinary Sciences, 37075 Goettingen, Germany;
| | - Cornelia Wiedwald
- Molecular & Experimental Pneumology Group, Clinic for Cardiology and Pneumology, University Medical Center Goettingen, 37075 Gottingen, Germany; (M.W.); (C.W.); (M.H.); (L.V.-H.); (S.A.)
- Molecular Oncology, University Medical Center Goettingen, 37077 Goettingen, Germany; (M.S.); (B.F.)
| | - Alena Moiseenko
- Immunology & Respiratory Department, Boehringer Ingelheim Pharma GmbH, 88400 Biberach an der Riss, Germany;
| | - Fidel Ramírez
- Global Computational Biology and Digital Sciences Department, Boehringer Ingelheim Pharma GmbH, 88400 Biberach an der Riss, Germany;
| | - Hataitip Tasena
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, 9712 Groningen, The Netherlands; (H.T.); (W.T.); (C.-A.B.); (I.H.H.)
- Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, 9712 Groningen, The Netherlands;
| | - Maren Heimerl
- Molecular & Experimental Pneumology Group, Clinic for Cardiology and Pneumology, University Medical Center Goettingen, 37075 Gottingen, Germany; (M.W.); (C.W.); (M.H.); (L.V.-H.); (S.A.)
- Molecular Oncology, University Medical Center Goettingen, 37077 Goettingen, Germany; (M.S.); (B.F.)
| | - Mihai Alevra
- Institute of Neuro- and Sensory Physiology, Goettingen University, 37073 Goettingen, Germany;
| | - Naira Movsisyan
- Oncophysiology Group, Max Planck Institute for Multidisciplinary Sciences, 37075 Goettingen, Germany; (N.M.); (D.U.); (L.A.P.)
| | - Maike Schuldt
- Molecular Oncology, University Medical Center Goettingen, 37077 Goettingen, Germany; (M.S.); (B.F.)
| | - Larisa Volceanov-Hahn
- Molecular & Experimental Pneumology Group, Clinic for Cardiology and Pneumology, University Medical Center Goettingen, 37075 Gottingen, Germany; (M.W.); (C.W.); (M.H.); (L.V.-H.); (S.A.)
| | - Sharen Provoost
- Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent University Hospital, 9000 Ghent, Belgium; (S.P.); (T.M.)
| | - Tabea Nöthe-Menchen
- Department of General Pediatrics, University Hospital Muenster, 48149 Muenster, Germany; (T.N.-M.); (J.W.)
| | - Diana Urrego
- Oncophysiology Group, Max Planck Institute for Multidisciplinary Sciences, 37075 Goettingen, Germany; (N.M.); (D.U.); (L.A.P.)
| | - Bernard Freytag
- Molecular Oncology, University Medical Center Goettingen, 37077 Goettingen, Germany; (M.S.); (B.F.)
| | - Julia Wallmeier
- Department of General Pediatrics, University Hospital Muenster, 48149 Muenster, Germany; (T.N.-M.); (J.W.)
| | - Christoph Beisswenger
- Department of Internal Medicine V, Saarland University, 66421 Homburg, Germany; (C.H.); (C.B.); (R.B.)
| | - Robert Bals
- Department of Internal Medicine V, Saarland University, 66421 Homburg, Germany; (C.H.); (C.B.); (R.B.)
| | - Maarten van den Berge
- Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, 9712 Groningen, The Netherlands;
- Department of Pulmonology, University Medical Center Groningen, University of Groningen, 9712 Groningen, The Netherlands
| | - Wim Timens
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, 9712 Groningen, The Netherlands; (H.T.); (W.T.); (C.-A.B.); (I.H.H.)
- Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, 9712 Groningen, The Netherlands;
| | - Pieter S. Hiemstra
- Department of Pulmonology, Leiden University Medical Centre, 2333 Leiden, The Netherlands;
| | - Corry-Anke Brandsma
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, 9712 Groningen, The Netherlands; (H.T.); (W.T.); (C.-A.B.); (I.H.H.)
- Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, 9712 Groningen, The Netherlands;
| | - Tania Maes
- Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent University Hospital, 9000 Ghent, Belgium; (S.P.); (T.M.)
| | - Stefan Andreas
- Molecular & Experimental Pneumology Group, Clinic for Cardiology and Pneumology, University Medical Center Goettingen, 37075 Gottingen, Germany; (M.W.); (C.W.); (M.H.); (L.V.-H.); (S.A.)
| | - Irene H. Heijink
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, 9712 Groningen, The Netherlands; (H.T.); (W.T.); (C.-A.B.); (I.H.H.)
- Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, 9712 Groningen, The Netherlands;
- Department of Pulmonology, University Medical Center Groningen, University of Groningen, 9712 Groningen, The Netherlands
| | - Luis A. Pardo
- Oncophysiology Group, Max Planck Institute for Multidisciplinary Sciences, 37075 Goettingen, Germany; (N.M.); (D.U.); (L.A.P.)
| | - Muriel Lizé
- Molecular & Experimental Pneumology Group, Clinic for Cardiology and Pneumology, University Medical Center Goettingen, 37075 Gottingen, Germany; (M.W.); (C.W.); (M.H.); (L.V.-H.); (S.A.)
- Molecular Oncology, University Medical Center Goettingen, 37077 Goettingen, Germany; (M.S.); (B.F.)
- Immunology & Respiratory Department, Boehringer Ingelheim Pharma GmbH, 88400 Biberach an der Riss, Germany;
- Correspondence:
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20
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p73α1, a p73 C-terminal isoform, regulates tumor suppression and the inflammatory response via Notch1. Proc Natl Acad Sci U S A 2022; 119:e2123202119. [PMID: 35617425 DOI: 10.1073/pnas.2123202119] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Significance p73 is expressed as multiple C-terminal isoforms, but their expression and activity are largely unknown. Here, we identified p73α1 as a p73 C-terminal isoform that results from exon 12 (E12) exclusion. We showed that E12 deficiency in mice leads to systemic inflammation but not spontaneous tumors. We also showed that Notch1 is regulated by p73α1 and plays a critical role in p73-dependent tumor suppression and systemic inflammation.
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21
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Schreiner T, Allnoch L, Beythien G, Marek K, Becker K, Schaudien D, Stanelle-Bertram S, Schaumburg B, Mounogou Kouassi N, Beck S, Zickler M, Gabriel G, Baumgärtner W, Armando F, Ciurkiewicz M. SARS-CoV-2 Infection Dysregulates Cilia and Basal Cell Homeostasis in the Respiratory Epithelium of Hamsters. Int J Mol Sci 2022; 23:5124. [PMID: 35563514 PMCID: PMC9102945 DOI: 10.3390/ijms23095124] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 04/27/2022] [Accepted: 05/03/2022] [Indexed: 02/04/2023] Open
Abstract
Similar to many other respiratory viruses, SARS-CoV-2 targets the ciliated cells of the respiratory epithelium and compromises mucociliary clearance, thereby facilitating spread to the lungs and paving the way for secondary infections. A detailed understanding of mechanism involved in ciliary loss and subsequent regeneration is crucial to assess the possible long-term consequences of COVID-19. The aim of this study was to characterize the sequence of histological and ultrastructural changes observed in the ciliated epithelium during and after SARS-CoV-2 infection in the golden Syrian hamster model. We show that acute infection induces a severe, transient loss of cilia, which is, at least in part, caused by cilia internalization. Internalized cilia colocalize with membrane invaginations, facilitating virus entry into the cell. Infection also results in a progressive decline in cells expressing the regulator of ciliogenesis FOXJ1, which persists beyond virus clearance and the termination of inflammatory changes. Ciliary loss triggers the mobilization of p73+ and CK14+ basal cells, which ceases after regeneration of the cilia. Although ciliation is restored after two weeks despite the lack of FOXJ1, an increased frequency of cilia with ultrastructural alterations indicative of secondary ciliary dyskinesia is observed. In summary, the work provides new insights into SARS-CoV-2 pathogenesis and expands our understanding of virally induced damage to defense mechanisms in the conducting airways.
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Affiliation(s)
- Tom Schreiner
- Department of Pathology, University of Veterinary Medicine Hanover Foundation, 30559 Hanover, Germany; (T.S.); (L.A.); (G.B.); (K.M.); (K.B.); (F.A.); (M.C.)
- Center for Systems Neuroscience (ZSN), University of Veterinary Medicine Hanover Foundation, 30559 Hanover, Germany
| | - Lisa Allnoch
- Department of Pathology, University of Veterinary Medicine Hanover Foundation, 30559 Hanover, Germany; (T.S.); (L.A.); (G.B.); (K.M.); (K.B.); (F.A.); (M.C.)
- Center for Systems Neuroscience (ZSN), University of Veterinary Medicine Hanover Foundation, 30559 Hanover, Germany
| | - Georg Beythien
- Department of Pathology, University of Veterinary Medicine Hanover Foundation, 30559 Hanover, Germany; (T.S.); (L.A.); (G.B.); (K.M.); (K.B.); (F.A.); (M.C.)
| | - Katarzyna Marek
- Department of Pathology, University of Veterinary Medicine Hanover Foundation, 30559 Hanover, Germany; (T.S.); (L.A.); (G.B.); (K.M.); (K.B.); (F.A.); (M.C.)
- Center for Systems Neuroscience (ZSN), University of Veterinary Medicine Hanover Foundation, 30559 Hanover, Germany
| | - Kathrin Becker
- Department of Pathology, University of Veterinary Medicine Hanover Foundation, 30559 Hanover, Germany; (T.S.); (L.A.); (G.B.); (K.M.); (K.B.); (F.A.); (M.C.)
| | - Dirk Schaudien
- Fraunhofer Institute for Toxicology and Experimental Medicine, 30625 Hanover, Germany;
| | - Stephanie Stanelle-Bertram
- Department for Viral Zoonoses-One Health, Leibniz Institute for Experimental Virology (HPI), 20251 Hamburg, Germany; (S.S.-B.); (B.S.); (N.M.K.); (S.B.); (M.Z.); (G.G.)
| | - Berfin Schaumburg
- Department for Viral Zoonoses-One Health, Leibniz Institute for Experimental Virology (HPI), 20251 Hamburg, Germany; (S.S.-B.); (B.S.); (N.M.K.); (S.B.); (M.Z.); (G.G.)
| | - Nancy Mounogou Kouassi
- Department for Viral Zoonoses-One Health, Leibniz Institute for Experimental Virology (HPI), 20251 Hamburg, Germany; (S.S.-B.); (B.S.); (N.M.K.); (S.B.); (M.Z.); (G.G.)
| | - Sebastian Beck
- Department for Viral Zoonoses-One Health, Leibniz Institute for Experimental Virology (HPI), 20251 Hamburg, Germany; (S.S.-B.); (B.S.); (N.M.K.); (S.B.); (M.Z.); (G.G.)
| | - Martin Zickler
- Department for Viral Zoonoses-One Health, Leibniz Institute for Experimental Virology (HPI), 20251 Hamburg, Germany; (S.S.-B.); (B.S.); (N.M.K.); (S.B.); (M.Z.); (G.G.)
| | - Gülsah Gabriel
- Department for Viral Zoonoses-One Health, Leibniz Institute for Experimental Virology (HPI), 20251 Hamburg, Germany; (S.S.-B.); (B.S.); (N.M.K.); (S.B.); (M.Z.); (G.G.)
| | - Wolfgang Baumgärtner
- Department of Pathology, University of Veterinary Medicine Hanover Foundation, 30559 Hanover, Germany; (T.S.); (L.A.); (G.B.); (K.M.); (K.B.); (F.A.); (M.C.)
- Center for Systems Neuroscience (ZSN), University of Veterinary Medicine Hanover Foundation, 30559 Hanover, Germany
| | - Federico Armando
- Department of Pathology, University of Veterinary Medicine Hanover Foundation, 30559 Hanover, Germany; (T.S.); (L.A.); (G.B.); (K.M.); (K.B.); (F.A.); (M.C.)
| | - Malgorzata Ciurkiewicz
- Department of Pathology, University of Veterinary Medicine Hanover Foundation, 30559 Hanover, Germany; (T.S.); (L.A.); (G.B.); (K.M.); (K.B.); (F.A.); (M.C.)
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22
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Osterburg C, Dötsch V. Structural diversity of p63 and p73 isoforms. Cell Death Differ 2022; 29:921-937. [PMID: 35314772 PMCID: PMC9091270 DOI: 10.1038/s41418-022-00975-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 03/01/2022] [Accepted: 03/02/2022] [Indexed: 01/25/2023] Open
Abstract
Abstract
The p53 protein family is the most studied protein family of all. Sequence analysis and structure determination have revealed a high similarity of crucial domains between p53, p63 and p73. Functional studies, however, have shown a wide variety of different tasks in tumor suppression, quality control and development. Here we review the structure and organization of the individual domains of p63 and p73, the interaction of these domains in the context of full-length proteins and discuss the evolutionary origin of this protein family.
Facts
Distinct physiological roles/functions are performed by specific isoforms.
The non-divided transactivation domain of p63 has a constitutively high activity while the transactivation domains of p53/p73 are divided into two subdomains that are regulated by phosphorylation.
Mdm2 binds to all three family members but ubiquitinates only p53.
TAp63α forms an autoinhibited dimeric state while all other vertebrate p53 family isoforms are constitutively tetrameric.
The oligomerization domain of p63 and p73 contain an additional helix that is necessary for stabilizing the tetrameric states. During evolution this helix got lost independently in different phylogenetic branches, while the DNA binding domain became destabilized and the transactivation domain split into two subdomains.
Open questions
Is the autoinhibitory mechanism of mammalian TAp63α conserved in p53 proteins of invertebrates that have the same function of genomic quality control in germ cells?
What is the physiological function of the p63/p73 SAM domains?
Do the short isoforms of p63 and p73 have physiological functions?
What are the roles of the N-terminal elongated TAp63 isoforms, TA* and GTA?
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23
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Lack of association of TP73 with amyotrophic lateral sclerosis in a large cohort of cases. Neurobiol Aging 2022; 115:109-111. [DOI: 10.1016/j.neurobiolaging.2022.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/01/2022] [Accepted: 04/03/2022] [Indexed: 11/23/2022]
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24
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Xue Y, Gursky Z, Monte B, Koundal S, Liu X, Lee H, Michurina TV, Mellanson KA, Zhao L, Nemajerova A, Kahle KT, Takemaru KI, Enikolopov G, Peunova NI, Benveniste H. Sustained glymphatic transport and impaired drainage to the nasal cavity observed in multiciliated cell ciliopathies with hydrocephalus. Fluids Barriers CNS 2022; 19:20. [PMID: 35248089 PMCID: PMC8898469 DOI: 10.1186/s12987-022-00319-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 02/21/2022] [Indexed: 11/10/2022] Open
Abstract
Background Hydrocephalus (increased ventricular size due to CSF accumulation) is a common finding in human ciliopathies and in mouse models with genetic depletion of the multiciliated cell (MCC) cilia machinery. However, the contribution of MCC to CSF dynamics and, the mechanism by which impaired MCC function leads to hydrocephalus remains poorly understood. The aim of our study was to examine if defects in MCC ciliogenesis and cilia-generated CSF flow impact central nervous system (CNS) fluid homeostasis including glymphatic transport and solute waste drainage. Methods We used two distinct mouse models of MCC ciliopathy: MCC-specific CEP164 conditional knockout mice (FOXJ1-Cre;CEP164fl/fl (N = 10), 3-month-old) and p73 knock-out (p73−/− (N = 8), 5-month-old) mice. Age-matched, wild-type littermates for each of the mutants served as controls. Glymphatic transport and solute drainage was quantified using in vivo T1 mapping by magnetic resonance imaging (MRI) after CSF infusion of gadoteric acid. Brain morphometry and aquaporin 4 expression (AQP4) was also assessed. Intracranial pressure (ICP) was measured in separate cohorts. Results In both of the two models of MCC ciliopathy we found the ventriculomegaly to be associated with normal ICP. We showed that FOXJ1-Cre;CEP164fl/fl mice with hydrocephalus still demonstrated sustained glymphatic transport and normal AQP4 expression along capillaries. In p73−/− mice glymphatic transport was even increased, and this was paralleled by an increase in AQP4 polarization around capillaries. Further, solute drainage via the cribriform plate to the nasal cavity was severely impaired in both ciliopathy models and associated with chronic rhinitis and olfactory bulb hypoplasia. Conclusions The combination of sustained glymphatic transport, impaired solute drainage via the cribriform plate to the nasal cavity and hydrocephalus has not previously been reported in models of MCC ciliopathy. Our data enhance our understanding of how different types of ciliopathies contribute to disruption of CNS fluid homeostasis, manifested in pathologies such as hydrocephalus. Supplementary Information The online version contains supplementary material available at 10.1186/s12987-022-00319-x.
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25
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Hoque M, Kim EN, Chen D, Li FQ, Takemaru KI. Essential Roles of Efferent Duct Multicilia in Male Fertility. Cells 2022; 11:cells11030341. [PMID: 35159149 PMCID: PMC8834061 DOI: 10.3390/cells11030341] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/07/2022] [Accepted: 01/18/2022] [Indexed: 02/01/2023] Open
Abstract
Cilia are microtubule-based hair-like organelles on the cell surface. Cilia have been implicated in various biological processes ranging from mechanosensation to fluid movement. Ciliary dysfunction leads to a plethora of human diseases, known as ciliopathies. Although non-motile primary cilia are ubiquitous, motile multicilia are found in restricted locations of the body, such as the respiratory tract, the oviduct, the efferent duct, and the brain ventricles. Multicilia beat in a whip-like motion to generate fluid flow over the apical surface of an epithelium. The concerted ciliary motion provides the driving force critical for clearing airway mucus and debris, transporting ova from the ovary to the uterus, maintaining sperm in suspension, and circulating cerebrospinal fluid in the brain. In the male reproductive tract, multiciliated cells (MCCs) were first described in the mid-1800s, but their importance in male fertility remained elusive until recently. MCCs exist in the efferent ducts, which are small, highly convoluted tubules that connect the testis to the epididymis and play an essential role in male fertility. In this review, we will introduce multiciliogenesis, discuss mouse models of male infertility with defective multicilia, and summarize our current knowledge on the biological function of multicilia in the male reproductive tract.
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Affiliation(s)
- Mohammed Hoque
- Molecular and Cellular Biology Graduate Program, Stony Brook University, Stony Brook, NY 11794, USA; (M.H.); (E.N.K.)
| | - Eunice N. Kim
- Molecular and Cellular Biology Graduate Program, Stony Brook University, Stony Brook, NY 11794, USA; (M.H.); (E.N.K.)
| | - Danny Chen
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY 11794, USA; (D.C.); (F.-Q.L.)
| | - Feng-Qian Li
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY 11794, USA; (D.C.); (F.-Q.L.)
| | - Ken-Ichi Takemaru
- Molecular and Cellular Biology Graduate Program, Stony Brook University, Stony Brook, NY 11794, USA; (M.H.); (E.N.K.)
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY 11794, USA; (D.C.); (F.-Q.L.)
- Correspondence:
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26
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Xie C, Abrams SR, Herranz-Pérez V, García-Verdugo JM, Reiter JF. Endoderm development requires centrioles to restrain p53-mediated apoptosis in the absence of ERK activity. Dev Cell 2021; 56:3334-3348.e6. [PMID: 34932949 PMCID: PMC8797031 DOI: 10.1016/j.devcel.2021.11.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 09/05/2021] [Accepted: 11/17/2021] [Indexed: 12/17/2022]
Abstract
Centrioles comprise the heart of centrosomes, microtubule-organizing centers. To study the function of centrioles in lung and gut development, we genetically disrupted centrioles throughout the mouse endoderm. Surprisingly, removing centrioles from the endoderm did not disrupt intestinal growth or development but blocked lung branching. In the lung, acentriolar SOX2-expressing airway epithelial cells apoptosed. Loss of centrioles activated p53, and removing p53 restored survival of SOX2-expressing cells, lung branching, and mouse viability. To investigate how endodermal p53 activation specifically killed acentriolar SOX2-expressing cells, we assessed ERK, a prosurvival cue. ERK was active throughout the intestine and in the distal lung buds, correlating with tolerance to centriole loss. Pharmacologically inhibiting ERK activated apoptosis in acentriolar cells, revealing that ERK activity protects acentriolar cells from apoptosis. Therefore, centrioles are largely dispensable for endodermal growth and the spatial distribution of ERK activity in the endoderm shapes the developmental consequences of centriolar defects and p53 activation.
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Affiliation(s)
- Chang Xie
- Department of Biochemistry and Biophysics, Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA, USA
| | - Shaun R Abrams
- Department of Biochemistry and Biophysics, Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA, USA
| | - Vicente Herranz-Pérez
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, Valencia, Spain; Predepartamental Unit of Medicine, Jaume I University, Castelló de la Plana, Spain
| | | | - Jeremy F Reiter
- Department of Biochemistry and Biophysics, Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA, USA; Chan Zuckerberg Biohub, San Francisco, CA 94158, USA.
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27
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Novel Approach Combining Transcriptional and Evolutionary Signatures to Identify New Multiciliation Genes. Genes (Basel) 2021; 12:genes12091452. [PMID: 34573434 PMCID: PMC8470418 DOI: 10.3390/genes12091452] [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: 08/26/2021] [Revised: 09/17/2021] [Accepted: 09/18/2021] [Indexed: 11/19/2022] Open
Abstract
Multiciliogenesis is a complex process that allows the generation of hundreds of motile cilia on the surface of specialized cells, to create fluid flow across epithelial surfaces. Dysfunction of human multiciliated cells is associated with diseases of the brain, airway and reproductive tracts. Despite recent efforts to characterize the transcriptional events responsible for the differentiation of multiciliated cells, a lot of actors remain to be identified. In this work, we capitalize on the ever-growing quantity of high-throughput data to search for new candidate genes involved in multiciliation. After performing a large-scale screening using 10 transcriptomics datasets dedicated to multiciliation, we established a specific evolutionary signature involving Otomorpha fish to use as a criterion to select the most likely targets. Combining both approaches highlighted a list of 114 potential multiciliated candidates. We characterized these genes first by generating protein interaction networks, which showed various clusters of ciliated and multiciliated genes, and then by computing phylogenetic profiles. In the end, we selected 11 poorly characterized genes that seem like particularly promising multiciliated candidates. By combining functional and comparative genomics methods, we developed a novel type of approach to study biological processes and identify new promising candidates linked to that process.
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28
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Garrido-Jimenez S, Barrera-Lopez JF, Diaz-Chamorro S, Mateos-Quiros CM, Rodriguez-Blanco I, Marquez-Perez FL, Lorenzo MJ, Centeno F, Roman AC, Carvajal-Gonzalez JM. p53 regulation by MDM2 contributes to self-renewal and differentiation of basal stem cells in mouse and human airway epithelium. FASEB J 2021; 35:e21816. [PMID: 34396583 DOI: 10.1096/fj.202100638r] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 07/05/2021] [Accepted: 07/08/2021] [Indexed: 01/19/2023]
Abstract
Proper physiological function of mammalian airways requires the differentiation of basal stem cells into secretory or multiciliated cells, among others. In addition, the self-renewal ability of these basal stem cells is crucial for developing a quick response to toxic agents in order to re-establish the epithelial barrier function of the airways. Although these epithelial missions are vital, little is known about those mechanism controlling airway epithelial regeneration in health and disease. p53 has been recently proposed as the guardian of homeostasis, promoting differentiation programs, and antagonizing a de-differentiation program. Here, we exploit mouse and human tracheal epithelial cell culture models to study the role of MDM2-p53 signaling in self-renewal and differentiation in the airway epithelium. We show that p53 protein regulation by MDM2 is crucial for basal stem cell differentiation and to keep proper cell proliferation. Therefore, we suggest that MDM2/p53 interaction modulation is a potential target to control regeneration of the mammalian airway epithelia without massively affecting the epithelium integrity and differentiation potential.
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Affiliation(s)
- Sergio Garrido-Jimenez
- Departamento de Bioquímica, Biología Molecular y Genética, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain
| | - Juan Francisco Barrera-Lopez
- Departamento de Bioquímica, Biología Molecular y Genética, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain
| | - Selene Diaz-Chamorro
- Departamento de Bioquímica, Biología Molecular y Genética, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain
| | - Clara Maria Mateos-Quiros
- Departamento de Bioquímica, Biología Molecular y Genética, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain
| | | | | | - Maria Jesus Lorenzo
- Departamento de Bioquímica, Biología Molecular y Genética, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain
| | - Francisco Centeno
- Departamento de Bioquímica, Biología Molecular y Genética, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain
| | - Angel Carlos Roman
- Departamento de Bioquímica, Biología Molecular y Genética, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain
| | - Jose Maria Carvajal-Gonzalez
- Departamento de Bioquímica, Biología Molecular y Genética, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain
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29
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TAp73 represses NF-κB-mediated recruitment of tumor-associated macrophages in breast cancer. Proc Natl Acad Sci U S A 2021; 118:2017089118. [PMID: 33649219 PMCID: PMC7958209 DOI: 10.1073/pnas.2017089118] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Breast cancer is one of the most prevalent cancers worldwide. Understanding this complex disease is therefore of great importance. Here, we report that loss of TAp73, a known tumor suppressor and member of the p53 protein family, leads to increased activation of the NF-κB pathway, secretion of the chemokine CCL2, and an increase in protumoral macrophage infiltration in human breast cancer. Both high levels of CCL2 and high macrophage infiltration are known to correlate with poor prognosis in breast cancer patients. This study identifies TAp73 as a regulator of macrophage recruitment and highlights a role for TAp73 in immune cell regulation in cancer. Infiltration of tumor-promoting immune cells is a strong driver of tumor progression. Especially the accumulation of macrophages in the tumor microenvironment is known to facilitate tumor growth and to correlate with poor prognosis in many tumor types. TAp73, a member of the p53/p63/p73 family, acts as a tumor suppressor and has been shown to suppress tumor angiogenesis. However, what role TAp73 has in regulating immune cell infiltration is unknown. Here, we report that low levels of TAp73 correlate with an increased NF-κB–regulated inflammatory signature in breast cancer. Furthermore, we show that loss of TAp73 results in NF-κB hyperactivation and secretion of Ccl2, a known NF-κB target and chemoattractant for monocytes and macrophages. Importantly, TAp73-deficient tumors display an increased accumulation of protumoral macrophages that express the mannose receptor (CD206) and scavenger receptor A (CD204) compared to controls. The relevance of TAp73 expression in human breast carcinoma was further accentuated by revealing that TAp73 expression correlates negatively with the accumulation of protumoral CD163+ macrophages in breast cancer patient samples. Taken together, our findings suggest that TAp73 regulates macrophage accumulation and phenotype in breast cancer through inhibition of the NF-κB pathway.
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30
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Laubach K, Zhang J, Chen X. The p53 Family: A Role in Lipid and Iron Metabolism. Front Cell Dev Biol 2021; 9:715974. [PMID: 34395447 PMCID: PMC8358664 DOI: 10.3389/fcell.2021.715974] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 07/08/2021] [Indexed: 12/11/2022] Open
Abstract
The p53 family of tumor suppressors, which includes p53, p63, and p73, has a critical role in many biological processes, such as cell cycle arrest, apoptosis, and differentiation. In addition to tumor suppression, the p53 family proteins also participate in development, multiciliogenesis, and fertility, indicating these proteins have diverse roles. In this review, we strive to cover the relevant studies that demonstrate the roles of p53, p63, and p73 in lipid and iron metabolism.
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Affiliation(s)
| | | | - Xinbin Chen
- Comparative Oncology Laboratory, Schools of Veterinary Medicine and Medicine, University of California, Davis, Davis, CA, United States
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Tissue-specific expression of p73 and p63 isoforms in human tissues. Cell Death Dis 2021; 12:745. [PMID: 34315849 PMCID: PMC8316356 DOI: 10.1038/s41419-021-04017-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 06/25/2021] [Accepted: 06/30/2021] [Indexed: 12/13/2022]
Abstract
p73 and p63 are members of the p53 family that exhibit overlapping and distinct functions in development and homeostasis. The evaluation of p73 and p63 isoform expression across human tissue can provide greater insight to the functional interactions between family members. We determined the mRNA isoform expression patterns of TP73 and TP63 across a panel of 36 human tissues and protein expression within the highest-expressing tissues. TP73 and TP63 expression significantly correlated across tissues. In tissues with concurrent mRNA expression, nuclear co-expression of both proteins was observed in a majority of cells. Using GTEx data, we quantified p73 and p63 isoform expression in human tissue and identified that the α-isoforms of TP73 and TP63 were the predominant isoform expressed in nearly all tissues. Further, we identified a previously unreported p73 mRNA product encoded by exons 4 to 14. In sum, these data provide the most comprehensive tissue-specific atlas of p73 and p63 protein and mRNA expression patterns in human and murine samples, indicating coordinate expression of these transcription factors in the majority of tissues in which they are expressed.
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Maeso-Alonso L, López-Ferreras L, Marques MM, Marin MC. p73 as a Tissue Architect. Front Cell Dev Biol 2021; 9:716957. [PMID: 34368167 PMCID: PMC8343074 DOI: 10.3389/fcell.2021.716957] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 06/28/2021] [Indexed: 12/13/2022] Open
Abstract
The TP73 gene belongs to the p53 family comprised by p53, p63, and p73. In response to physiological and pathological signals these transcription factors regulate multiple molecular pathways which merge in an ensemble of interconnected networks, in which the control of cell proliferation and cell death occupies a prominent position. However, the complex phenotype of the Trp73 deficient mice has revealed that the biological relevance of this gene does not exclusively rely on its growth suppression effects, but it is also intertwined with other fundamental roles governing different aspects of tissue physiology. p73 function is essential for the organization and homeostasis of different complex microenvironments, like the neurogenic niche, which supports the neural progenitor cells and the ependyma, the male and female reproductive organs, the respiratory epithelium or the vascular network. We propose that all these, apparently unrelated, developmental roles, have a common denominator: p73 function as a tissue architect. Tissue architecture is defined by the nature and the integrity of its cellular and extracellular compartments, and it is based on proper adhesive cell-cell and cell-extracellular matrix interactions as well as the establishment of cellular polarity. In this work, we will review the current understanding of p73 role as a neurogenic niche architect through the regulation of cell adhesion, cytoskeleton dynamics and Planar Cell Polarity, and give a general overview of TAp73 as a hub modulator of these functions, whose alteration could impinge in many of the Trp73 -/- phenotypes.
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Affiliation(s)
- Laura Maeso-Alonso
- Departamento de Biología Molecular, Instituto de Biomedicina (IBIOMED), University of León, León, Spain
| | - Lorena López-Ferreras
- Departamento de Biología Molecular, Instituto de Biomedicina (IBIOMED), University of León, León, Spain
| | - Margarita M Marques
- Departamento de Producción Animal, Instituto de Desarrollo Ganadero y Sanidad Animal, University of León, León, Spain
| | - Maria C Marin
- Departamento de Biología Molecular, Instituto de Biomedicina (IBIOMED), University of León, León, Spain
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Wallmeier J, Bracht D, Alsaif HS, Dougherty GW, Olbrich H, Cindric S, Dzietko M, Heyer C, Teig N, Thiels C, Faqeih E, Al-Hashim A, Khan S, Mogarri I, Almannai M, Al Otaibi W, Alkuraya FS, Koerner-Rettberg C, Omran H. Mutations in TP73 cause impaired mucociliary clearance and lissencephaly. Am J Hum Genet 2021; 108:1318-1329. [PMID: 34077761 DOI: 10.1016/j.ajhg.2021.05.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 05/06/2021] [Indexed: 01/09/2023] Open
Abstract
TP73 belongs to the TP53 family of transcription factors and has therefore been well studied in cancer research. Studies in mice, however, have revealed non-oncogenic activities related to multiciliogenesis. Utilizing whole-exome sequencing analysis in a cohort of individuals with a mucociliary clearance disorder and cortical malformation, we identified homozygous loss-of-function variants in TP73 in seven individuals from five unrelated families. All affected individuals exhibit a chronic airway disease as well as a brain malformation consistent with lissencephaly. We performed high-speed video microscopy, immunofluorescence analyses, and transmission electron microscopy in respiratory epithelial cells after spheroid or air liquid interface culture to analyze ciliary function, ciliary length, and number of multiciliated cells (MCCs). The respiratory epithelial cells studied display reduced ciliary length and basal bodies mislocalized within the cytoplasm. The number of MCCs is severely reduced, consistent with a reduced number of cells expressing the transcription factors crucial for multiciliogenesis (FOXJ1, RFX2). Our data demonstrate that autosomal-recessive deleterious variants in the TP53 family member TP73 cause a mucociliary clearance disorder due to a defect in MCC differentiation.
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López-Ferreras L, Martínez-García N, Maeso-Alonso L, Martín-López M, Díez-Matilla Á, Villoch-Fernandez J, Alonso-Olivares H, Marques MM, Marin MC. Deciphering the Nature of Trp73 Isoforms in Mouse Embryonic Stem Cell Models: Generation of Isoform-Specific Deficient Cell Lines Using the CRISPR/Cas9 Gene Editing System. Cancers (Basel) 2021; 13:cancers13133182. [PMID: 34202306 PMCID: PMC8268375 DOI: 10.3390/cancers13133182] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/13/2021] [Accepted: 06/17/2021] [Indexed: 12/15/2022] Open
Abstract
Simple Summary The Trp73 gene is involved in the regulation of multiple biological processes such as response to stress, differentiation and tissue architecture. This gene gives rise to structurally different N and C-terminal isoforms which lead to differences in its biological activity in a cell type dependent manner. However, there is a current lack of physiological models to study these isoforms. The aim of this study was to generate specific p73-isoform-deficient mouse embryonic stem cell lines using the CRISPR/Cas9 system. Their special features, self-renewal and pluripotency, make embryonic stem cells a useful research tool that allows the generation of cells from any of the three germ layers carrying specific inactivation of p73-isoforms. Characterization of the generated cell lines indicates that while the individual elimination of TA- or DN-p73 isoform is compatible with pluripotency, it results in alterations of the transcriptional profiles and the pluripotent state of the embryonic stem cells in an isoform-specific manner. Abstract The p53 family has been widely studied for its role in various physiological and pathological processes. Imbalance of p53 family proteins may contribute to developmental abnormalities and pathologies in humans. This family exerts its functions through a profusion of isoforms that are generated by different promoter usage and alternative splicing in a cell type dependent manner. In particular, the Trp73 gene gives rise to TA and DN-p73 isoforms that confer p73 a dual nature. The biological relevance of p73 does not only rely on its tumor suppression effects, but on its pivotal role in several developmental processes. Therefore, the generation of cellular models that allow the study of the individual isoforms in a physiological context is of great biomedical relevance. We generated specific TA and DN-p73-deficient mouse embryonic stem cell lines using the CRISPR/Cas9 gene editing system and validated them as physiological bona fide p73-isoform knockout models. Global gene expression analysis revealed isoform-specific alterations of distinctive transcriptional networks. Elimination of TA or DN-p73 is compatible with pluripotency but prompts naïve pluripotent stem cell transition into the primed state, compromising adequate lineage differentiation, thus suggesting that differential expression of p73 isoforms acts as a rheostat during early cell fate determination.
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Affiliation(s)
- Lorena López-Ferreras
- Instituto de Biomedicina (IBIOMED), Universidad de León, 24071 León, Spain; (L.L.-F.); (N.M.-G.); (L.M.-A.); (M.M.-L.); (Á.D.-M.); (J.V.-F.); (H.A.-O.)
- Departamento de Biología Molecular, Universidad de León, 24071 León, Spain
| | - Nicole Martínez-García
- Instituto de Biomedicina (IBIOMED), Universidad de León, 24071 León, Spain; (L.L.-F.); (N.M.-G.); (L.M.-A.); (M.M.-L.); (Á.D.-M.); (J.V.-F.); (H.A.-O.)
- Departamento de Producción Animal, Universidad de León, 24071 León, Spain
| | - Laura Maeso-Alonso
- Instituto de Biomedicina (IBIOMED), Universidad de León, 24071 León, Spain; (L.L.-F.); (N.M.-G.); (L.M.-A.); (M.M.-L.); (Á.D.-M.); (J.V.-F.); (H.A.-O.)
- Departamento de Biología Molecular, Universidad de León, 24071 León, Spain
| | - Marta Martín-López
- Instituto de Biomedicina (IBIOMED), Universidad de León, 24071 León, Spain; (L.L.-F.); (N.M.-G.); (L.M.-A.); (M.M.-L.); (Á.D.-M.); (J.V.-F.); (H.A.-O.)
- Biomar Microbial Technologies, Parque Tecnológico de León, Armunia, 24009 León, Spain
| | - Ángela Díez-Matilla
- Instituto de Biomedicina (IBIOMED), Universidad de León, 24071 León, Spain; (L.L.-F.); (N.M.-G.); (L.M.-A.); (M.M.-L.); (Á.D.-M.); (J.V.-F.); (H.A.-O.)
| | - Javier Villoch-Fernandez
- Instituto de Biomedicina (IBIOMED), Universidad de León, 24071 León, Spain; (L.L.-F.); (N.M.-G.); (L.M.-A.); (M.M.-L.); (Á.D.-M.); (J.V.-F.); (H.A.-O.)
- Departamento de Biología Molecular, Universidad de León, 24071 León, Spain
| | - Hugo Alonso-Olivares
- Instituto de Biomedicina (IBIOMED), Universidad de León, 24071 León, Spain; (L.L.-F.); (N.M.-G.); (L.M.-A.); (M.M.-L.); (Á.D.-M.); (J.V.-F.); (H.A.-O.)
- Departamento de Biología Molecular, Universidad de León, 24071 León, Spain
| | - Margarita M. Marques
- Departamento de Producción Animal, Universidad de León, 24071 León, Spain
- Instituto de Desarrollo Ganadero y Sanidad Animal (INDEGSAL), Universidad de León, 24071 León, Spain
- Correspondence: (M.M.M.); (M.C.M.); Tel.: +34-987-291757 (M.M.M.); +34-987-291490 (M.C.M.)
| | - Maria C. Marin
- Instituto de Biomedicina (IBIOMED), Universidad de León, 24071 León, Spain; (L.L.-F.); (N.M.-G.); (L.M.-A.); (M.M.-L.); (Á.D.-M.); (J.V.-F.); (H.A.-O.)
- Departamento de Biología Molecular, Universidad de León, 24071 León, Spain
- Correspondence: (M.M.M.); (M.C.M.); Tel.: +34-987-291757 (M.M.M.); +34-987-291490 (M.C.M.)
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Loukas I, Skamnelou M, Tsaridou S, Bournaka S, Grigoriadis S, Taraviras S, Lygerou Z, Arbi M. Fine-tuning multiciliated cell differentiation at the post-transcriptional level: contribution of miR-34/449 family members. Biol Rev Camb Philos Soc 2021; 96:2321-2332. [PMID: 34132477 DOI: 10.1111/brv.12755] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 05/13/2021] [Accepted: 05/25/2021] [Indexed: 01/28/2023]
Abstract
Cell differentiation is a process that must be precisely regulated for the maintenance of tissue homeostasis. Differentiation towards a multiciliated cell fate is characterized by well-defined stages, where a transcriptional cascade is activated leading to the formation of multiple centrioles and cilia. Centrioles migrate and dock to the apical cell surface and, acting as basal bodies, give rise to multiple motile cilia. The concerted movement of cilia ensures directional fluid flow across epithelia and defects either in their number or structure can lead to disease phenotypes. Micro-RNAs (miRNAs; miRs) are small, non-coding RNA molecules that play an important role in post-transcriptional regulation of gene expression. miR-34b/c and miR-449a/b/c specifically function throughout the differentiation of multiciliated cells, fine-tuning the expression of many different centriole- and cilia-related genes. They strictly regulate the expression levels of genes that are required both for commitment towards the multiciliated cell fate (e.g. Notch) and for the establishment and maintenance of this fate by regulating the expression of transcription factors and structural components of the pathway. Herein we review miR-34 and miR-449 spatiotemporal regulation along with their roles during the different stages of multiciliogenesis.
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Affiliation(s)
- Ioannis Loukas
- Laboratory of Biology, School of Medicine, University of Patras, Rio, Patras, 26504, Greece
| | - Margarita Skamnelou
- Laboratory of Biology, School of Medicine, University of Patras, Rio, Patras, 26504, Greece
| | - Stavroula Tsaridou
- Laboratory of Biology, School of Medicine, University of Patras, Rio, Patras, 26504, Greece
| | - Spyridoula Bournaka
- Laboratory of Biology, School of Medicine, University of Patras, Rio, Patras, 26504, Greece
| | - Sokratis Grigoriadis
- Laboratory of Biology, School of Medicine, University of Patras, Rio, Patras, 26504, Greece
| | - Stavros Taraviras
- Laboratory of Physiology, School of Medicine, University of Patras, Rio, Patras, 26504, Greece
| | - Zoi Lygerou
- Laboratory of Biology, School of Medicine, University of Patras, Rio, Patras, 26504, Greece
| | - Marina Arbi
- Laboratory of Biology, School of Medicine, University of Patras, Rio, Patras, 26504, Greece
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p53/p73 Protein Network in Colorectal Cancer and Other Human Malignancies. Cancers (Basel) 2021; 13:cancers13122885. [PMID: 34207603 PMCID: PMC8227208 DOI: 10.3390/cancers13122885] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/02/2021] [Accepted: 06/03/2021] [Indexed: 12/16/2022] Open
Abstract
Simple Summary The p53 family of proteins comprises p53, p63, and p73, which share high structural and functional similarity. The two distinct promoters of each locus, the alternative splicing, and the alternative translation initiation sites enable the generation of numerous isoforms with different protein-interacting domains and distinct activities. The co-expressed p53/p73 isoforms have significant but distinct roles in carcinogenesis. Their activity is frequently impaired in human tumors including colorectal carcinoma due to dysregulated expression and a dominant-negative effect accomplished by some isoforms and p53 mutants. The interactions between isoforms are particularly important to understand the onset of tumor formation, progression, and therapeutic response. The understanding of the p53/p73 network can contribute to the development of new targeted therapies. Abstract The p53 tumor suppressor protein is crucial for cell growth control and the maintenance of genomic stability. Later discovered, p63 and p73 share structural and functional similarity with p53. To understand the p53 pathways more profoundly, all family members should be considered. Each family member possesses two promoters and alternative translation initiation sites, and they undergo alternative splicing, generating multiple isoforms. The resulting isoforms have important roles in carcinogenesis, while their expression is dysregulated in several human tumors including colorectal carcinoma, which makes them potential targets in cancer treatment. Their activities arise, at least in part, from the ability to form tetramers that bind to specific DNA sequences and activate the transcription of target genes. In this review, we summarize the current understanding of the biological activities and regulation of the p53/p73 isoforms, highlighting their role in colorectal tumorigenesis. The analysis of the expression patterns of the p53/p73 isoforms in human cancers provides an important step in the improvement of cancer therapy. Furthermore, the interactions among the p53 family members which could modulate normal functions of the canonical p53 in tumor tissue are described. Lastly, we emphasize the importance of clinical studies to assess the significance of combining the deregulation of different members of the p53 family to define the outcome of the disease.
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Wagner W, Dullin C, Andreas S, Lizé M. Three-dimensional assessment of bronchiectasis in a mouse model of mucociliary clearance disorder. ERJ Open Res 2021; 7:00635-2020. [PMID: 33816598 PMCID: PMC8005675 DOI: 10.1183/23120541.00635-2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 12/07/2020] [Indexed: 11/17/2022] Open
Abstract
Bronchiectasis is a chronic pathological condition characterised by abnormal enlargement of the lung's conductive airways. It is associated with a lack of ciliary motility and restricted mucociliary clearance in diseases such as primary ciliary dyskinesia (PCD) or “immotile cilia syndrome”. Recent studies have shown an increase in the prevalence of bronchiectasis, causing a significant burden on public healthcare systems [1, 2]. The mechanisms that trigger and drive the development of bronchiectasis have yet to be fully elucidated. Murine models of immotile cilia or reduced mucociliary clearance failed to display signs of bronchiectasis in multiple studies, raising questions about the suitability of murine models for non-cystic fibrosis (CF) bronchiectasis and hindering the development of targeted therapies [3]. Synchrotron-based imaging allows for detection of bronchiectasis-like phenotypes in mice with mucociliary clearance disordershttps://bit.ly/3gXGdP3
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Affiliation(s)
- Willi Wagner
- University of Heidelberg, Dept of Diagnostic and Interventional Radiology, Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), Heidelberg, Germany.,University Medical Center Goettingen, Institute for Diagnostic and Interventional Radiology, Goettingen, Germany
| | - Christian Dullin
- University Medical Center Goettingen, Institute for Diagnostic and Interventional Radiology, Goettingen, Germany.,Max-Planck-Institute for Experimental Medicine, Goettingen, Germany
| | - Stefan Andreas
- Bayer AG, Cardiovascular Research, Lung Diseases, Wuppertal, Germany
| | - Muriel Lizé
- Bayer AG, Cardiovascular Research, Lung Diseases, Wuppertal, Germany
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38
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Melino G. Molecular Mechanisms and Function of the p53 Protein Family Member - p73. BIOCHEMISTRY (MOSCOW) 2021; 85:1202-1209. [PMID: 33202205 DOI: 10.1134/s0006297920100089] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Over 20 years after identification of p53 and its crucial function in cancer progression, two members of the same protein family were identified, namely p63 and p73. Since then, a body of information has been accumulated on each of these genes and their interrelations. Biological role of p73 has been elucidated thanks to four distinct knockout mice models: (i) with deletion of the entire TP73 gene, (ii) with deletion of exons encoding the full length TAp73 isoforms, (iii) with deletions of exons encoding the shorter DNp73 isoform, and (iv) with deletion of exons encoding C-terminal of the alpha isoform. This work, as well as expression studies in cancer and overwhelming body of molecular studies, allowed establishing major role of TP73 both in cancer and in neuro-development, as well as ciliogenesis, and metabolism. Here, we recapitulate the major milestones of this endeavor.
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Affiliation(s)
- G Melino
- Department of Experimental Medicine, TOR, University of Rome Tor Vergata, Rome, 00133, Italy.
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39
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The novel testicular enrichment protein Cfap58 is required for Notch-associated ciliogenesis. Biosci Rep 2021; 40:221781. [PMID: 31904090 PMCID: PMC6970087 DOI: 10.1042/bsr20192666] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 12/28/2019] [Accepted: 01/03/2020] [Indexed: 02/06/2023] Open
Abstract
Cilia and flagella are critical organelles with conserved internal structures and diverse developmental and physiological processes according to cell type. Although the core components of structures are shared with thousands of associated proteins involved in cilia or flagella formation, we hypothesized that some unknown proteins, such as outer dense fiber 2 (Odf2/Cenexin) perform distinct functions in these organelles. In the present study, we identified several uncharacterized proteins through mass spectrometry interactome analysis of Odf2/Cenexin proteins. We further examined the expression patterns and functions of a protein named cilia and flagella associated protein 58 (Cfap58) in cultured astrocytes and sperm flagella. The results of a combination of biochemical analyses and drug administration studies reveal that Cfap58 is a testis-enrichment protein that exhibits similar localization to Odf2/Cenexin proteins and is required for the elongation of the primary cilium and sperm midpiece via modulation of the Notch signaling pathway. However, the cell cycle-related functions and localization of Odf2/Cenexin in the mother centriole were not altered in Cfap58 knockdown cells. These findings indicate that Cfap58 may be partially recruited by Odf2/Cenexin proteins and is indispensable for the cilia and flagellar assembly. These data provide us with a better understanding of ciliogenesis and flagellar elongation and may aid in identifying new targets for diseases caused by Notch-mediated ciliopathies and flagellar abnormalities.
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40
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Müller A, Dickmanns A, Resch C, Schäkel K, Hailfinger S, Dobbelstein M, Schulze-Osthoff K, Kramer D. The CDK4/6-EZH2 pathway is a potential therapeutic target for psoriasis. J Clin Invest 2021; 130:5765-5781. [PMID: 32701505 DOI: 10.1172/jci134217] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 07/14/2020] [Indexed: 12/12/2022] Open
Abstract
Psoriasis is a frequent, inflammatory skin disease characterized by keratinocyte hyperproliferation and a disease-related infiltration of immune cells. Here, we identified a novel proinflammatory signaling pathway driven by cyclin-dependent kinase 4 (CDK4) and CDK6 and the methyltransferase EZH2 as a valid target for psoriasis therapy. Delineation of the pathway revealed that CDK4/6 phosphorylated EZH2 in keratinocytes, thereby triggering a methylation-induced activation of STAT3. Subsequently, active STAT3 resulted in the induction of IκBζ, which is a key proinflammatory transcription factor required for cytokine synthesis in psoriasis. Pharmacological or genetic inhibition of CDK4/6 or EZH2 abrogated psoriasis-related proinflammatory gene expression by suppressing IκBζ induction in keratinocytes. Importantly, topical application of CDK4/6 or EZH2 inhibitors on the skin was sufficient to fully prevent the development of psoriasis in various mouse models by suppressing STAT3-mediated IκBζ expression. Moreover, we found a hyperactivation of the CDK4/6-EZH2 pathway in human and mouse psoriatic skin lesions. Thus, this study not only identifies a novel psoriasis-relevant proinflammatory pathway, but also proposes the repurposing of CDK4/6 or EZH2 inhibitors as a new therapeutic option for patients with psoriasis.
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Affiliation(s)
- Anne Müller
- Interfaculty Institute for Biochemistry, University of Tübingen, Tübingen, Germany
| | - Antje Dickmanns
- Institute of Molecular Oncology, Göttingen Center of Molecular Biosciences (GZMB), University of Göttingen, Göttingen, Germany
| | - Claudia Resch
- Interfaculty Institute for Biochemistry, University of Tübingen, Tübingen, Germany
| | - Knut Schäkel
- Department of Dermatology, Heidelberg University Hospital, Heidelberg, Germany
| | - Stephan Hailfinger
- Interfaculty Institute for Biochemistry, University of Tübingen, Tübingen, Germany.,Cluster of Excellence iFIT (EXC 2180), Image-Guided and Functionally Instructed Tumor Therapies, University of Tübingen, Tübingen, Germany
| | - Matthias Dobbelstein
- Institute of Molecular Oncology, Göttingen Center of Molecular Biosciences (GZMB), University of Göttingen, Göttingen, Germany
| | - Klaus Schulze-Osthoff
- Interfaculty Institute for Biochemistry, University of Tübingen, Tübingen, Germany.,German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Daniela Kramer
- Interfaculty Institute for Biochemistry, University of Tübingen, Tübingen, Germany
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Rao VG, Kulkarni SS. Xenopus to the rescue: A model to validate and characterize candidate ciliopathy genes. Genesis 2021; 59:e23414. [PMID: 33576572 DOI: 10.1002/dvg.23414] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/27/2021] [Accepted: 01/28/2021] [Indexed: 12/14/2022]
Abstract
Cilia are present on most vertebrate cells and play a central role in development, growth, and homeostasis. Thus, cilia dysfunction can manifest into an array of diseases, collectively termed ciliopathies, affecting millions of lives worldwide. Yet, our understanding of the gene regulatory networks that control cilia assembly and functions remain incomplete. With the advances in next-generation sequencing technologies, we can now rapidly predict pathogenic variants from hundreds of ciliopathy patients. While the pace of candidate gene discovery is exciting, most of these genes have never been previously implicated in cilia assembly or function. This makes assigning the disease causality difficult. This review discusses how Xenopus, a genetically tractable and high-throughput vertebrate model, has played a central role in identifying, validating, and characterizing candidate ciliopathy genes. The review is focused on multiciliated cells (MCCs) and diseases associated with MCC dysfunction. MCCs harbor multiple motile cilia on their apical surface to generate extracellular fluid flow inside the airway, the brain ventricles, and the oviduct. In Xenopus, these cells are external and present on the embryonic epidermal epithelia, facilitating candidate genes analysis in MCC development in vivo. The ability to introduce patient variants to study their effects on disease progression makes Xenopus a powerful model to improve our understanding of the underlying disease mechanisms and explain the patient phenotype.
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Affiliation(s)
- Venkatramanan G Rao
- Department of Cell Biology, University of Virginia, Charlottesville, Virginia, USA
| | - Saurabh S Kulkarni
- Department of Cell Biology, University of Virginia, Charlottesville, Virginia, USA.,Department of Biology, University of Virginia, Charlottesville, Virginia, USA
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42
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Lewis M, Stracker TH. Transcriptional regulation of multiciliated cell differentiation. Semin Cell Dev Biol 2021; 110:51-60. [DOI: 10.1016/j.semcdb.2020.04.007] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/25/2020] [Accepted: 04/13/2020] [Indexed: 01/01/2023]
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43
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Androglobin gene expression patterns and FOXJ1-dependent regulation indicate its functional association with ciliogenesis. J Biol Chem 2021; 296:100291. [PMID: 33453283 PMCID: PMC7949040 DOI: 10.1016/j.jbc.2021.100291] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 12/17/2020] [Accepted: 01/11/2021] [Indexed: 12/12/2022] Open
Abstract
Androglobin (ADGB) represents the latest addition to the globin superfamily in metazoans. The chimeric protein comprises a calpain domain and a unique circularly permutated globin domain. ADGB expression levels are most abundant in mammalian testis, but its cell-type-specific expression, regulation, and function have remained unexplored. Analyzing bulk and single-cell mRNA-Seq data from mammalian tissues, we found that—in addition to the testes—ADGB is prominently expressed in the female reproductive tract, lungs, and brain, specifically being associated with cell types forming motile cilia. Correlation analysis suggested coregulation of ADGB with FOXJ1, a crucial transcription factor of ciliogenesis. Investigating the transcriptional regulation of the ADGB gene, we characterized its promoter using epigenomic datasets, exogenous promoter-dependent luciferase assays, and CRISPR/dCas9-VPR-mediated activation approaches. Reporter gene assays revealed that FOXJ1 indeed substantially enhanced luciferase activity driven by the ADGB promoter. ChIP assays confirmed binding of FOXJ1 to the endogenous ADGB promoter region. We dissected the minimal sequence required for FOXJ1-dependent regulation and fine mapped the FOXJ1 binding site to two evolutionarily conserved regions within the ADGB promoter. FOXJ1 overexpression significantly increased endogenous ADGB mRNA levels in HEK293 and MCF-7 cells. Similar results were observed upon RFX2 overexpression, another key transcription factor in ciliogenesis. The complex transcriptional regulation of the ADGB locus was illustrated by identifying a distal enhancer, responsible for synergistic regulation by RFX2 and FOXJ1. Finally, cell culture studies indicated an ADGB-dependent increase in the number of ciliated cells upon overexpression of the full-length protein, confirming a ciliogenesis-associated role of ADGB in mammals.
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McErlean P, Kelly A, Dhariwal J, Kirtland M, Watson J, Ranz I, Smith J, Saxena A, Cousins DJ, Van Oosterhout A, Solari R, Edwards MR, Johnston SL, Lavender P. Profiling of H3K27Ac Reveals the Influence of Asthma on the Epigenome of the Airway Epithelium. Front Genet 2020; 11:585746. [PMID: 33362848 PMCID: PMC7758344 DOI: 10.3389/fgene.2020.585746] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 11/03/2020] [Indexed: 12/17/2022] Open
Abstract
Background Asthma is a chronic airway disease driven by complex genetic–environmental interactions. The role of epigenetic modifications in bronchial epithelial cells (BECs) in asthma is poorly understood. Methods We piloted genome-wide profiling of the enhancer-associated histone modification H3K27ac in BECs from people with asthma (n = 4) and healthy controls (n = 3). Results We identified n = 4,321 (FDR < 0.05) regions exhibiting differential H3K27ac enrichment between asthma and health, clustering at genes associated predominately with epithelial processes (EMT). We identified initial evidence of asthma-associated Super-Enhancers encompassing genes encoding transcription factors (TP63) and enzymes regulating lipid metabolism (PTGS1). We integrated published datasets to identify epithelium-specific transcription factors associated with H3K27ac in asthma (TP73) and identify initial relationships between asthma-associated changes in H3K27ac and transcriptional profiles. Finally, we investigated the potential of CRISPR-based approaches to functionally evaluate H3K27ac-asthma landscape in vitro by identifying guide-RNAs capable of targeting acetylation to asthma DERs and inducing gene expression (TLR3). Conclusion Our small pilot study validates genome-wide approaches for deciphering epigenetic mechanisms underlying asthma pathogenesis in the airways.
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Affiliation(s)
- Peter McErlean
- Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom.,Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom
| | - Audrey Kelly
- Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom.,Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom
| | - Jaideep Dhariwal
- Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom.,Airway Disease Infection Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Max Kirtland
- Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom.,Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom
| | - Julie Watson
- Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom.,Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom
| | - Ismael Ranz
- Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom.,Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom
| | - Janet Smith
- GlaxoSmithKline Allergic Inflammation Discovery Performance Unit, Respiratory Therapy Area, Stevenage, United Kingdom
| | - Alka Saxena
- Genomics Platform, Biomedical Research Centre at Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - David J Cousins
- Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom.,National Institute for Health Research (NIHR) Respiratory Biomedical Research Unit, Department of Infection, Immunity & Inflammation, Leicester Institute for Lung Health, University of Leicester, Leicester, United Kingdom
| | - Antoon Van Oosterhout
- GlaxoSmithKline Allergic Inflammation Discovery Performance Unit, Respiratory Therapy Area, Stevenage, United Kingdom
| | - Roberto Solari
- Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom.,Airway Disease Infection Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Michael R Edwards
- Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom.,Airway Disease Infection Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Sebastian L Johnston
- Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom.,Airway Disease Infection Section, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Paul Lavender
- Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom.,Asthma UK Centre in Allergic Mechanisms of Asthma, London, United Kingdom
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45
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Legendre M, Zaragosi LE, Mitchison HM. Motile cilia and airway disease. Semin Cell Dev Biol 2020; 110:19-33. [PMID: 33279404 DOI: 10.1016/j.semcdb.2020.11.007] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/10/2020] [Accepted: 11/14/2020] [Indexed: 01/10/2023]
Abstract
A finely regulated system of airway epithelial development governs the differentiation of motile ciliated cells of the human respiratory tract, conferring the body's mucociliary clearance defence system. Human cilia dysfunction can arise through genetic mutations and this is a cause of debilitating disease morbidities that confer a greatly reduced quality of life. The inherited human motile ciliopathy disorder, primary ciliary dyskinesia (PCD), can arise from mutations in genes affecting various aspects of motile cilia structure and function through deficient production, transport and assembly of cilia motility components or through defective multiciliogenesis. Our understanding about the development of the respiratory epithelium, motile cilia biology and the implications for human pathology has expanded greatly over the past 20 years since isolation of the first PCD gene, rising to now nearly 50 genes. Systems level insights about cilia motility in health and disease have been made possible through intensive molecular and omics (genomics, transcriptomics, proteomics) research, applied in ciliate organisms and in animal and human disease modelling. Here, we review ciliated airway development and the genetic stratification that underlies PCD, for which the underlying genotype can increasingly be connected to biological mechanism and disease prognostics. Progress in this field can facilitate clinical translation of research advances, with potential for great medical impact, e.g. through improvements in ciliopathy disease diagnosis, management, family counselling and by enhancing the potential for future genetically tailored approaches to disease therapeutics.
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Affiliation(s)
- Marie Legendre
- Sorbonne Université, Institut National de la Santé et de la Recherche Médicale, Childhood Genetic Disorders, Département de Génétique Médicale, Hôpital Armand-Trousseau, Assistance Publique-Hôpitaux de Paris, Paris 75012, France
| | | | - Hannah M Mitchison
- Genetics and Genomic Medicine, University College London, UCL Great Ormond Street Institute of Child Health, London WC1N 1EH, UK; NIHR Biomedical Research Centre at Great Ormond Street Hospital, London, UK.
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Brücker L, Kretschmer V, May-Simera HL. The entangled relationship between cilia and actin. Int J Biochem Cell Biol 2020; 129:105877. [PMID: 33166678 DOI: 10.1016/j.biocel.2020.105877] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/23/2020] [Accepted: 10/26/2020] [Indexed: 12/14/2022]
Abstract
Primary cilia are microtubule-based sensory cell organelles that are vital for tissue and organ development. They act as an antenna, receiving and transducing signals, enabling communication between cells. Defects in ciliogenesis result in severe genetic disorders collectively termed ciliopathies. In recent years, the importance of the direct and indirect involvement of actin regulators in ciliogenesis came into focus as it was shown that F-actin polymerisation impacts ciliation. The ciliary basal body was further identified as both a microtubule and actin organising centre. In the current review, we summarize recent studies on F-actin in and around primary cilia, focusing on different actin regulators and their effect on ciliogenesis, from the initial steps of basal body positioning and regulation of ciliary assembly and disassembly. Since primary cilia are also involved in several intracellular signalling pathways such as planar cell polarity (PCP), subsequently affecting actin rearrangements, the multiple effectors of this pathway are highlighted in more detail with a focus on the feedback loops connecting actin networks and cilia proteins. Finally, we elucidate the role of actin regulators in the development of ciliopathy symptoms and cancer.
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Affiliation(s)
- Lena Brücker
- Cilia Cell Biology, Institute of Molecular Physiology, Johannes-Gutenberg University, Mainz, Germany
| | - Viola Kretschmer
- Cilia Cell Biology, Institute of Molecular Physiology, Johannes-Gutenberg University, Mainz, Germany
| | - Helen Louise May-Simera
- Cilia Cell Biology, Institute of Molecular Physiology, Johannes-Gutenberg University, Mainz, Germany.
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Lemeille S, Paschaki M, Baas D, Morlé L, Duteyrat JL, Ait-Lounis A, Barras E, Soulavie F, Jerber J, Thomas J, Zhang Y, Holtzman MJ, Kistler WS, Reith W, Durand B. Interplay of RFX transcription factors 1, 2 and 3 in motile ciliogenesis. Nucleic Acids Res 2020; 48:9019-9036. [PMID: 32725242 PMCID: PMC7498320 DOI: 10.1093/nar/gkaa625] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 07/08/2020] [Accepted: 07/16/2020] [Indexed: 12/16/2022] Open
Abstract
Cilia assembly is under strict transcriptional control during animal development. In vertebrates, a hierarchy of transcription factors (TFs) are involved in controlling the specification, differentiation and function of multiciliated epithelia. RFX TFs play key functions in the control of ciliogenesis in animals. Whereas only one RFX factor regulates ciliogenesis in C. elegans, several distinct RFX factors have been implicated in this process in vertebrates. However, a clear understanding of the specific and redundant functions of different RFX factors in ciliated cells remains lacking. Using RNA-seq and ChIP-seq approaches we identified genes regulated directly and indirectly by RFX1, RFX2 and RFX3 in mouse ependymal cells. We show that these three TFs have both redundant and specific functions in ependymal cells. Whereas RFX1, RFX2 and RFX3 occupy many shared genomic loci, only RFX2 and RFX3 play a prominent and redundant function in the control of motile ciliogenesis in mice. Our results provide a valuable list of candidate ciliary genes. They also reveal stunning differences between compensatory processes operating in vivo and ex vivo.
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Affiliation(s)
- Sylvain Lemeille
- Department of Pathology and Immunology, University of Geneva Medical School, CMU, Geneva, Switzerland
| | - Marie Paschaki
- Univ Lyon, Université Claude Bernard Lyon-1, CNRS UMR-5310, INSERM U-1217, Institut NeuroMyoGène, F-69008, Lyon, France
| | - Dominique Baas
- Univ Lyon, Université Claude Bernard Lyon-1, CNRS UMR-5310, INSERM U-1217, Institut NeuroMyoGène, F-69008, Lyon, France
| | - Laurette Morlé
- Univ Lyon, Université Claude Bernard Lyon-1, CNRS UMR-5310, INSERM U-1217, Institut NeuroMyoGène, F-69008, Lyon, France
| | - Jean-Luc Duteyrat
- Univ Lyon, Université Claude Bernard Lyon-1, CNRS UMR-5310, INSERM U-1217, Institut NeuroMyoGène, F-69008, Lyon, France
| | - Aouatef Ait-Lounis
- Department of Pathology and Immunology, University of Geneva Medical School, CMU, Geneva, Switzerland
| | - Emmanuèle Barras
- Department of Pathology and Immunology, University of Geneva Medical School, CMU, Geneva, Switzerland
| | - Fabien Soulavie
- Univ Lyon, Université Claude Bernard Lyon-1, CNRS UMR-5310, INSERM U-1217, Institut NeuroMyoGène, F-69008, Lyon, France
| | - Julie Jerber
- Univ Lyon, Université Claude Bernard Lyon-1, CNRS UMR-5310, INSERM U-1217, Institut NeuroMyoGène, F-69008, Lyon, France
| | - Joëlle Thomas
- Univ Lyon, Université Claude Bernard Lyon-1, CNRS UMR-5310, INSERM U-1217, Institut NeuroMyoGène, F-69008, Lyon, France
| | - Yong Zhang
- Department of Medicine and Department of Cell Biology, Washington University School of Medicine, St. Louis, Missouri
| | - Michael J Holtzman
- Department of Medicine and Department of Cell Biology, Washington University School of Medicine, St. Louis, Missouri
| | - W Stephen Kistler
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, United States of America
| | - Walter Reith
- Department of Pathology and Immunology, University of Geneva Medical School, CMU, Geneva, Switzerland
| | - Bénédicte Durand
- Univ Lyon, Université Claude Bernard Lyon-1, CNRS UMR-5310, INSERM U-1217, Institut NeuroMyoGène, F-69008, Lyon, France
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Montgomery MT, Sajuthi SP, Cho SH, Everman JL, Rios CL, Goldfarbmuren KC, Jackson ND, Saef B, Cromie M, Eng C, Medina V, Elhawary JR, Oh SS, Rodriguez-Santana J, Vladar EK, Burchard EG, Seibold MA. Genome-Wide Analysis Reveals Mucociliary Remodeling of the Nasal Airway Epithelium Induced by Urban PM 2.5. Am J Respir Cell Mol Biol 2020; 63:172-184. [PMID: 32275839 DOI: 10.1165/rcmb.2019-0454oc] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Air pollution particulate matter <2.5 μm (PM2.5) exposure is associated with poor respiratory outcomes. Mechanisms underlying PM2.5-induced lung pathobiology are poorly understood but likely involve cellular and molecular changes to the airway epithelium. We extracted and chemically characterized the organic and water-soluble components of air pollution PM2.5 samples, then determined the whole transcriptome response of human nasal mucociliary airway epithelial cultures to a dose series of PM2.5 extracts. We found that PM2.5 organic extract (OE), but not water-soluble extract, elicited a potent, dose-dependent transcriptomic response from the mucociliary epithelium. Exposure to a moderate OE dose modified the expression of 424 genes, including activation of aryl hydrocarbon receptor signaling and an IL-1 inflammatory program. We generated an OE-response gene network defined by eight functional enrichment groups, which exhibited high connectivity through CYP1A1, IL1A, and IL1B. This OE exposure also robustly activated a mucus secretory expression program (>100 genes), which included transcriptional drivers of mucus metaplasia (SPDEF and FOXA3). Exposure to a higher OE dose modified the expression of 1,240 genes and further exacerbated expression responses observed at the moderate dose, including the mucus secretory program. Moreover, the higher OE dose significantly increased the MUC5AC/MUC5B gel-forming mucin expression ratio and strongly downregulated ciliated cell expression programs, including key ciliating cell transcription factors (e.g., FOXJ1 and MCIDAS). Chronic OE stimulation induced mucus metaplasia-like remodeling characterized by increases in MUC5AC+ secretory cells and MUC5AC mucus secretions. This epithelial remodeling may underlie poor respiratory outcomes associated with high PM2.5 exposure.
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Affiliation(s)
| | | | - Seung-Hyun Cho
- RTI International, Research Triangle Park, North Carolina
| | | | | | | | | | | | | | | | - Vivian Medina
- Centro de Neumología Pediátrica, San Juan, Puerto Rico; and
| | | | | | | | - Eszter K Vladar
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine and.,Department of Cell and Developmental Biology, University of Colorado School of Medicine, Aurora, Colorado
| | - Esteban G Burchard
- Department of Medicine and.,Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, California
| | - Max A Seibold
- Center for Genes, Environment, and Health, and.,Department of Pediatrics, National Jewish Health, Denver, Colorado.,Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine and
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Kuek LE, Lee RJ. First contact: the role of respiratory cilia in host-pathogen interactions in the airways. Am J Physiol Lung Cell Mol Physiol 2020; 319:L603-L619. [PMID: 32783615 PMCID: PMC7516383 DOI: 10.1152/ajplung.00283.2020] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/28/2020] [Accepted: 07/28/2020] [Indexed: 02/07/2023] Open
Abstract
Respiratory cilia are the driving force of the mucociliary escalator, working in conjunction with secreted airway mucus to clear inhaled debris and pathogens from the conducting airways. Respiratory cilia are also one of the first contact points between host and inhaled pathogens. Impaired ciliary function is a common pathological feature in patients with chronic airway diseases, increasing susceptibility to respiratory infections. Common respiratory pathogens, including viruses, bacteria, and fungi, have been shown to target cilia and/or ciliated airway epithelial cells, resulting in a disruption of mucociliary clearance that may facilitate host infection. Despite being an integral component of airway innate immunity, the role of respiratory cilia and their clinical significance during airway infections are still poorly understood. This review examines the expression, structure, and function of respiratory cilia during pathogenic infection of the airways. This review also discusses specific known points of interaction of bacteria, fungi, and viruses with respiratory cilia function. The emerging biological functions of motile cilia relating to intracellular signaling and their potential immunoregulatory roles during infection will also be discussed.
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Affiliation(s)
- Li Eon Kuek
- Department of Otorhinolaryngology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Robert J Lee
- Department of Otorhinolaryngology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
- Department of Physiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
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50
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Sammons MA, Nguyen TAT, McDade SS, Fischer M. Tumor suppressor p53: from engaging DNA to target gene regulation. Nucleic Acids Res 2020; 48:8848-8869. [PMID: 32797160 PMCID: PMC7498329 DOI: 10.1093/nar/gkaa666] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 07/24/2020] [Accepted: 07/30/2020] [Indexed: 12/13/2022] Open
Abstract
The p53 transcription factor confers its potent tumor suppressor functions primarily through the regulation of a large network of target genes. The recent explosion of next generation sequencing protocols has enabled the study of the p53 gene regulatory network (GRN) and underlying mechanisms at an unprecedented depth and scale, helping us to understand precisely how p53 controls gene regulation. Here, we discuss our current understanding of where and how p53 binds to DNA and chromatin, its pioneer-like role, and how this affects gene regulation. We provide an overview of the p53 GRN and the direct and indirect mechanisms through which p53 affects gene regulation. In particular, we focus on delineating the ubiquitous and cell type-specific network of regulatory elements that p53 engages; reviewing our understanding of how, where, and when p53 binds to DNA and the mechanisms through which these events regulate transcription. Finally, we discuss the evolution of the p53 GRN and how recent work has revealed remarkable differences between vertebrates, which are of particular importance to cancer researchers using mouse models.
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Affiliation(s)
- Morgan A Sammons
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, 1400 Washington Avenue, Albany, NY 12222, USA
| | - Thuy-Ai T Nguyen
- Genome Integrity & Structural Biology Laboratory and Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences/National Institutes of Health, 111 TW Alexander Drive, Research Triangle Park, NC 27709, USA
| | - Simon S McDade
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7AE, UK
| | - Martin Fischer
- Computational Biology Group, Leibniz Institute on Aging – Fritz Lipmann Institute (FLI), Beutenbergstraße 11, 07745 Jena, Germany
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