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Zhang T, Li H, Sun S, Zhou W, Zhang T, Yu Y, Wang Q, Wang M. Microfibrillar-associated protein 5 suppresses adipogenesis by inhibiting essential coactivator of PPARγ. Sci Rep 2023; 13:5589. [PMID: 37020143 PMCID: PMC10076305 DOI: 10.1038/s41598-023-32868-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 04/04/2023] [Indexed: 04/07/2023] Open
Abstract
Femoral head necrosis is responsible for severe pain and its incidence is increasing. Abnormal adipogenic differentiation and fat cell hypertrophy of bone marrow mesenchymal stem cells increase intramedullary cavity pressure, leading to osteonecrosis. By analyzing gene expression before and after adipogenic differentiation, we found that Microfibril-Associated Protein 5 (MFAP5) is significantly down-regulated in adipogenesis whilst the mechanism of MFAP5 in regulating the differentiation of bone marrow mesenchymal stem cells is unknown. The purpose of this study was to clarify the role of MAFP5 in adipogenesis and therefore provide a theoretical basis for future therapeutic options of osteonecrosis. By knockdown or overexpression of MFAP5 in C3H10 and 3T3-L1 cells, we found that MFAP5 was significantly down-regulated as a key regulator of adipogenic differentiation, and identified the underlying downstream molecular mechanism. MFAP5 directly bound to and inhibited the expression of Staphylococcal Nuclease And Tudor Domain Containing 1, an essential coactivator of PPARγ, exerting an important regulatory role in adipogenesis.
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Affiliation(s)
- Tianlong Zhang
- Department of Orthopedics, Shanghai Fifth People's Hospital, Fudan University, No128. Ruili Road, Minhang District, Shanghai, 200240, China
- Center of Community-Based Health Research, Fudan University, Shanghai, China
| | - Haoran Li
- Department of Orthopedics, Shanghai Fifth People's Hospital, Fudan University, No128. Ruili Road, Minhang District, Shanghai, 200240, China
- Department of Anatomy and Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Shiwei Sun
- Department of Orthopedics, Shanghai Fifth People's Hospital, Fudan University, No128. Ruili Road, Minhang District, Shanghai, 200240, China
- Center of Community-Based Health Research, Fudan University, Shanghai, China
| | - Wuling Zhou
- Department of Orthopedics, Shanghai Fifth People's Hospital, Fudan University, No128. Ruili Road, Minhang District, Shanghai, 200240, China
- Center of Community-Based Health Research, Fudan University, Shanghai, China
| | - Tieqi Zhang
- Department of Orthopedics, Shanghai Fifth People's Hospital, Fudan University, No128. Ruili Road, Minhang District, Shanghai, 200240, China
- Center of Community-Based Health Research, Fudan University, Shanghai, China
| | - Yueming Yu
- Department of Orthopedics, Shanghai Fifth People's Hospital, Fudan University, No128. Ruili Road, Minhang District, Shanghai, 200240, China
- Center of Community-Based Health Research, Fudan University, Shanghai, China
| | - Qiang Wang
- Department of Orthopedics, Shanghai Fifth People's Hospital, Fudan University, No128. Ruili Road, Minhang District, Shanghai, 200240, China.
- Center of Community-Based Health Research, Fudan University, Shanghai, China.
| | - Minghai Wang
- Department of Orthopedics, Shanghai Fifth People's Hospital, Fudan University, No128. Ruili Road, Minhang District, Shanghai, 200240, China.
- Center of Community-Based Health Research, Fudan University, Shanghai, China.
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2
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Huang H, Fang Y, Jiang M, Zhang Y, Biermann J, Melms JC, Danielsson JA, Yang Y, Qiang L, Liu J, Zhou Y, Wang M, Hu Z, Wang TC, Saqi A, Sun J, Matsumoto I, Cardoso WV, Emala CW, Zhu J, Izar B, Mou H, Que J. Contribution of Trp63CreERT2-labeled cells to alveolar regeneration is independent of tuft cells. eLife 2022; 11:e78217. [PMID: 36129169 PMCID: PMC9553211 DOI: 10.7554/elife.78217] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 09/18/2022] [Indexed: 11/13/2022] Open
Abstract
Viral infection often causes severe damage to the lungs, leading to the appearance of ectopic basal cells (EBCs) and tuft cells in the lung parenchyma. Thus far, the roles of these ectopic epithelial cells in alveolar regeneration remain controversial. Here, we confirm that the ectopic tuft cells are originated from EBCs in mouse models and COVID-19 lungs. The differentiation of tuft cells from EBCs is promoted by Wnt inhibition while suppressed by Notch inhibition. Although progenitor functions have been suggested in other organs, pulmonary tuft cells don't proliferate or give rise to other cell lineages. Consistent with previous reports, Trp63CreERT2 and KRT5-CreERT2-labeled ectopic EBCs do not exhibit alveolar regeneration potential. Intriguingly, when tamoxifen was administrated post-viral infection, Trp63CreERT2 but not KRT5-CreERT2 labels islands of alveolar epithelial cells that are negative for EBC biomarkers. Furthermore, germline deletion of Trpm5 significantly increases the contribution of Trp63CreERT2-labeled cells to the alveolar epithelium. Although Trpm5 is known to regulate tuft cell development, complete ablation of tuft cell production fails to improve alveolar regeneration in Pou2f3-/- mice, implying that Trpm5 promotes alveolar epithelial regeneration through a mechanism independent of tuft cells.
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Affiliation(s)
- Huachao Huang
- Columbia Center for Human Development, Department of Medicine, Columbia University Medical CenterNew YorkUnited States
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Medical CenterNew YorkUnited States
| | - Yinshan Fang
- Columbia Center for Human Development, Department of Medicine, Columbia University Medical CenterNew YorkUnited States
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Medical CenterNew YorkUnited States
| | - Ming Jiang
- Institute of Genetics, the Children's Hospital, Zhejiang University School of MedicineHangzhouChina
| | - Yihan Zhang
- Mucosal Immunology and Biology Research Center, Massachusetts General Hospital, Harvard Medical SchoolBostonUnited States
| | - Jana Biermann
- Division of Hematology/Oncology, Department of Medicine, Columbia University Irving Medical CenterNew YorkUnited States
- Columbia Center for Translational Immunology, Columbia University Irving Medical CenterNew YorkUnited States
| | - Johannes C Melms
- Division of Hematology/Oncology, Department of Medicine, Columbia University Irving Medical CenterNew YorkUnited States
- Columbia Center for Translational Immunology, Columbia University Irving Medical CenterNew YorkUnited States
| | - Jennifer A Danielsson
- Department of Anesthesiology, Columbia University Irving Medical CenterNew YorkUnited States
| | - Ying Yang
- Program in Epithelial Biology, Stanford University School of MedicineStanfordUnited States
| | - Li Qiang
- Department of Pathology & Cell Biology, Columbia University Medical CenterNew YorkUnited States
| | - Jia Liu
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of SciencesWuhanChina
| | - Yiwu Zhou
- Department of Forensic Medicine, Tongji Medical College of Huazhong University of Science and TechnologyWuhanChina
| | - Manli Wang
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of SciencesWuhanChina
| | - Zhihong Hu
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of SciencesWuhanChina
| | - Timothy C Wang
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Medical CenterNew YorkUnited States
| | - Anjali Saqi
- Department of Pathology & Cell Biology, Columbia University Medical CenterNew YorkUnited States
| | - Jie Sun
- Carter Immunology Center, the University of VirginiaCharlottesvilleUnited States
| | | | - Wellington V Cardoso
- Columbia Center for Human Development, Department of Medicine, Columbia University Medical CenterNew YorkUnited States
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Columbia University Medical CenterNew YorkUnited States
| | - Charles W Emala
- Department of Anesthesiology, Columbia University Irving Medical CenterNew YorkUnited States
| | - Jian Zhu
- Department of Pathology, Ohio State University College of MedicineColumbusUnited States
| | - Benjamin Izar
- Division of Hematology/Oncology, Department of Medicine, Columbia University Irving Medical CenterNew YorkUnited States
- Columbia Center for Translational Immunology, Columbia University Irving Medical CenterNew YorkUnited States
| | - Hongmei Mou
- Mucosal Immunology and Biology Research Center, Massachusetts General Hospital, Harvard Medical SchoolBostonUnited States
| | - Jianwen Que
- Columbia Center for Human Development, Department of Medicine, Columbia University Medical CenterNew YorkUnited States
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Medical CenterNew YorkUnited States
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3
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Ornitz DM, Itoh N. New developments in the biology of fibroblast growth factors. WIREs Mech Dis 2022; 14:e1549. [PMID: 35142107 PMCID: PMC10115509 DOI: 10.1002/wsbm.1549] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 01/28/2023]
Abstract
The fibroblast growth factor (FGF) family is composed of 18 secreted signaling proteins consisting of canonical FGFs and endocrine FGFs that activate four receptor tyrosine kinases (FGFRs 1-4) and four intracellular proteins (intracellular FGFs or iFGFs) that primarily function to regulate the activity of voltage-gated sodium channels and other molecules. The canonical FGFs, endocrine FGFs, and iFGFs have been reviewed extensively by us and others. In this review, we briefly summarize past reviews and then focus on new developments in the FGF field since our last review in 2015. Some of the highlights in the past 6 years include the use of optogenetic tools, viral vectors, and inducible transgenes to experimentally modulate FGF signaling, the clinical use of small molecule FGFR inhibitors, an expanded understanding of endocrine FGF signaling, functions for FGF signaling in stem cell pluripotency and differentiation, roles for FGF signaling in tissue homeostasis and regeneration, a continuing elaboration of mechanisms of FGF signaling in development, and an expanding appreciation of roles for FGF signaling in neuropsychiatric diseases. This article is categorized under: Cardiovascular Diseases > Molecular and Cellular Physiology Neurological Diseases > Molecular and Cellular Physiology Congenital Diseases > Stem Cells and Development Cancer > Stem Cells and Development.
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Affiliation(s)
- David M Ornitz
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Nobuyuki Itoh
- Kyoto University Graduate School of Pharmaceutical Sciences, Sakyo, Kyoto, Japan
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4
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Busch SM, Lorenzana Z, Ryan AL. Implications for Extracellular Matrix Interactions With Human Lung Basal Stem Cells in Lung Development, Disease, and Airway Modeling. Front Pharmacol 2021; 12:645858. [PMID: 34054525 PMCID: PMC8149957 DOI: 10.3389/fphar.2021.645858] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 04/29/2021] [Indexed: 12/18/2022] Open
Abstract
The extracellular matrix (ECM) is not simply a quiescent scaffold. This three-dimensional network of extracellular macromolecules provides structural, mechanical, and biochemical support for the cells of the lung. Throughout life, the ECM forms a critical component of the pulmonary stem cell niche. Basal cells (BCs), the primary stem cells of the airways capable of differentiating to all luminal cell types, reside in close proximity to the basolateral ECM. Studying BC-ECM interactions is important for the development of therapies for chronic lung diseases in which ECM alterations are accompanied by an apparent loss of the lung's regenerative capacity. The complexity and importance of the native ECM in the regulation of BCs is highlighted as we have yet to create an in vitro culture model that is capable of supporting the long-term expansion of multipotent BCs. The interactions between the pulmonary ECM and BCs are, therefore, a vital component for understanding the mechanisms regulating BC stemness during health and disease. If we are able to replicate these interactions in airway models, we could significantly improve our ability to maintain basal cell stemness ex vivo for use in in vitro models and with prospects for cellular therapies. Furthermore, successful, and sustained airway regeneration in an aged or diseased lung by small molecules, novel compounds or via cellular therapy will rely upon both manipulation of the airway stem cells and their immediate niche within the lung. This review will focus on the current understanding of how the pulmonary ECM regulates the basal stem cell function, how this relationship changes in chronic disease, and how replicating native conditions poses challenges for ex vivo cell culture.
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Affiliation(s)
- Shana M. Busch
- Hastings Center for Pulmonary Research, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Zareeb Lorenzana
- Hastings Center for Pulmonary Research, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Amy L. Ryan
- Hastings Center for Pulmonary Research, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, United States
- Department of Stem Cell Biology and Regenerative Medicine, University of Southern California, Los Angeles, CA, United States
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5
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He H, Snowball J, Sun F, Na CL, Whitsett JA. IGF1R controls mechanosignaling in myofibroblasts required for pulmonary alveologenesis. JCI Insight 2021; 6:144863. [PMID: 33591952 PMCID: PMC8026181 DOI: 10.1172/jci.insight.144863] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 02/10/2021] [Indexed: 11/17/2022] Open
Abstract
Ventilation throughout life is dependent on the formation of pulmonary alveoli, which create an extensive surface area in which the close apposition of respiratory epithelium and endothelial cells of the pulmonary microvascular enables efficient gas exchange. Morphogenesis of the alveoli initiates at late gestation in humans and the early postnatal period in the mouse. Alveolar septation is directed by complex signaling interactions among multiple cell types. Here, we demonstrate that IGF1 receptor gene (Igf1r) expression by a subset of pulmonary fibroblasts is required for normal alveologenesis in mice. Postnatal deletion of Igf1r caused alveolar simplification, disrupting alveolar elastin networks and extracellular matrix without altering myofibroblast differentiation or proliferation. Moreover, loss of Igf1r impaired contractile properties of lung myofibroblasts and inhibited myosin light chain (MLC) phosphorylation and mechanotransductive nuclear YAP activity. Activation of p-AKT, p-MLC, and nuclear YAP in myofibroblasts was dependent on Igf1r. Pharmacologic activation of AKT enhanced MLC phosphorylation, increased YAP activation, and ameliorated alveolar simplification in vivo. IGF1R controls mechanosignaling in myofibroblasts required for lung alveologenesis.
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Affiliation(s)
- Hua He
- Division of Pulmonary Biology and
| | | | - Fei Sun
- Center for Lung Regenerative Medicine, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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6
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Ushakumary MG, Riccetti M, Perl AKT. Resident interstitial lung fibroblasts and their role in alveolar stem cell niche development, homeostasis, injury, and regeneration. Stem Cells Transl Med 2021; 10:1021-1032. [PMID: 33624948 PMCID: PMC8235143 DOI: 10.1002/sctm.20-0526] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/13/2021] [Accepted: 01/24/2021] [Indexed: 12/14/2022] Open
Abstract
Developing, regenerating, and repairing a lung all require interstitial resident fibroblasts (iReFs) to direct the behavior of the epithelial stem cell niche. During lung development, distal lung fibroblasts, in the form of matrix-, myo-, and lipofibroblasts, form the extra cellular matrix (ECM), create tensile strength, and support distal epithelial differentiation, respectively. During de novo septation in a murine pneumonectomy lung regeneration model, developmental processes are reactivated within the iReFs, indicating progenitor function well into adulthood. In contrast to the regenerative activation of fibroblasts upon acute injury, chronic injury results in fibrotic activation. In murine lung fibrosis models, fibroblasts can pathologically differentiate into lineages beyond their normal commitment during homeostasis. In lung injury, recently defined alveolar niche cells support the expansion of alveolar epithelial progenitors to regenerate the epithelium. In human fibrotic lung diseases like bronchopulmonary dysplasia (BPD), idiopathic pulmonary fibrosis (IPF), and chronic obstructive pulmonary disease (COPD), dynamic changes in matrix-, myo-, lipofibroblasts, and alveolar niche cells suggest differential requirements for injury pathogenesis and repair. In this review, we summarize the role of alveolar fibroblasts and their activation stage in alveolar septation and regeneration and incorporate them into the context of human lung disease, discussing fibroblast activation stages and how they contribute to BPD, IPF, and COPD.
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Affiliation(s)
- Mereena George Ushakumary
- The Perinatal Institute and Section of Neonatology, Perinatal and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Matthew Riccetti
- The Perinatal Institute and Section of Neonatology, Perinatal and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Molecular and Developmental Biology Graduate Program, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Anne-Karina T Perl
- The Perinatal Institute and Section of Neonatology, Perinatal and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Molecular and Developmental Biology Graduate Program, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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7
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Li R, Li X, Hagood J, Zhu MS, Sun X. Myofibroblast contraction is essential for generating and regenerating the gas-exchange surface. J Clin Invest 2021; 130:2859-2871. [PMID: 32338642 DOI: 10.1172/jci132189] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 02/13/2020] [Indexed: 01/05/2023] Open
Abstract
A majority (~95%) of the gas-exchange surface area is generated through septa formation during alveologenesis. Disruption of this process leads to alveolar simplification and bronchopulmonary dysplasia (BPD), a prevalent disorder in premature infants. Although several models have been proposed, the mechanism of septa formation remains under debate. Here we show that inactivation of myosin light chain kinase (MLCK), a key factor required for myofibroblast contraction, disrupted septa formation, supporting the myofibroblast contraction model of alveologenesis. The alveoli simplification phenotype was accompanied by decreased yes-associated protein (YAP), a key effector in the Hippo mechanotransduction pathway. Expression of activated YAP in Mlck-mutant lungs led to partial reversal of alveolar simplification. In the adult, although Mlck inactivation did not lead to simplification, it prevented reseptation during compensatory regrowth in the pneumonectomy model. These findings revealed that myofibroblast reactivation and contraction are requisite steps toward regenerating the gas-exchange surface in diseases such as BPD and chronic obstructive pulmonary disease (COPD).
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Affiliation(s)
- Rongbo Li
- Department of Pediatrics, School of Medicine, UCSD, La Jolla, California, USA
| | - Xiaoping Li
- Department of Pediatrics, School of Medicine, UCSD, La Jolla, California, USA
| | - James Hagood
- Department of Pediatrics, School of Medicine, UCSD, La Jolla, California, USA.,Division of Pulmonology, Department of Pediatrics, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina, USA
| | - Min-Sheng Zhu
- State Key Laboratory of Pharmaceutical Biotechnology.,Model Animal Research Center, and.,MOE Key Laboratory of Model Animal for Disease Study, Nanjing University, Nanjing, China
| | - Xin Sun
- Department of Pediatrics, School of Medicine, UCSD, La Jolla, California, USA.,Division of Biological Sciences, UCSD, La Jolla, California, USA
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8
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Riccetti M, Gokey JJ, Aronow B, Perl AKT. The elephant in the lung: Integrating lineage-tracing, molecular markers, and single cell sequencing data to identify distinct fibroblast populations during lung development and regeneration. Matrix Biol 2020; 91-92:51-74. [PMID: 32442602 PMCID: PMC7434667 DOI: 10.1016/j.matbio.2020.05.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 05/08/2020] [Accepted: 05/08/2020] [Indexed: 12/26/2022]
Abstract
During lung development, the mesenchyme and epithelium are dependent on each other for instructive morphogenic cues that direct proliferation, cellular differentiation and organogenesis. Specification of epithelial and mesenchymal cell lineages occurs in parallel, forming cellular subtypes that guide the formation of both transitional developmental structures and the permanent architecture of the adult lung. While epithelial cell types and lineages have been relatively well-defined in recent years, the definition of mesenchymal cell types and lineage relationships has been more challenging. Transgenic mouse lines with permanent and inducible lineage tracers have been instrumental in identifying lineage relationships among epithelial progenitor cells and their differentiation into distinct airway and alveolar epithelial cells. Lineage tracing experiments with reporter mice used to identify fibroblast progenitors and their lineage trajectories have been limited by the number of cell specific genes and the developmental timepoint when the lineage trace was activated. In this review, we discuss major developmental mesenchymal lineages, focusing on time of origin, major cell type, and other lineage derivatives, as well as the transgenic tools used to find and define them. We describe lung fibroblasts using function, location, and molecular markers in order to compare and contrast cells with similar functions. The temporal and cell-type specific expression of fourteen "fibroblast lineage" genes were identified in single-cell RNA-sequencing data from LungMAP in the LGEA database. Using these lineage signature genes as guides, we clustered murine lung fibroblast populations from embryonic day 16.5 to postnatal day 28 (E16.5-PN28) and generated heatmaps to illustrate expression of transcription factors, signaling receptors and ligands in a temporal and population specific manner.
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Affiliation(s)
- Matthew Riccetti
- The Perinatal Institute and Section of Neonatology, Perinatal and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States; Molecular and Developmental Biology Graduate Program, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Jason J Gokey
- The Perinatal Institute and Section of Neonatology, Perinatal and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Bruce Aronow
- Department of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States; Department of Pediatrics, University of Cincinnati School of Medicine, Cincinnati, OH, United States
| | - Anne-Karina T Perl
- The Perinatal Institute and Section of Neonatology, Perinatal and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States; Molecular and Developmental Biology Graduate Program, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States; Department of Pediatrics, University of Cincinnati School of Medicine, Cincinnati, OH, United States.
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9
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Easter M, Garth J, Harris ES, Shei RJ, Helton ES, Wei Y, Denson R, Zaharias R, Rowe SM, Geraghty P, Faul C, Barnes JW, Krick S. Fibroblast Growth Factor Receptor 4 Deficiency Mediates Airway Inflammation in the Adult Healthy Lung? Front Med (Lausanne) 2020; 7:317. [PMID: 32793609 PMCID: PMC7393220 DOI: 10.3389/fmed.2020.00317] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 06/01/2020] [Indexed: 12/16/2022] Open
Abstract
Fibroblast growth factor receptor (FGFR) 4 has been shown to mediate pro-inflammatory signaling in the liver and airway epithelium in chronic obstructive pulmonary disease. In past reports, FGFR4 knockout (Fgfr4 -/- ) mice did not show any lung phenotype developmentally or at birth, unless FGFR3 deficiency was present simultaneously. Therefore, we wanted to know whether the loss of FGFR4 had any effect on the adult murine lung. Our results indicate that adult Fgfr4 -/- mice demonstrate a lung phenotype consisting of widened airway spaces, increased airway inflammation, bronchial obstruction, and right ventricular hypertrophy consistent with emphysema. Despite downregulation of FGF23 serum levels, interleukin (IL) 1β and IL-6 in the Fgfr4 -/- lung, and abrogation of p38 signaling, primary murine Fgfr4 -/- airway cells showed increased expression of IL-1β and augmented secretion of IL-6, which correlated with decreased airway surface liquid depth as assessed by micro-optical coherence tomography. These findings were paralleled by increased ERK phosphorylation in Fgfr4 -/- airway cells when compared with their control wild-type cells. Analysis of a murine model with constitutive activation of FGFR4 showed attenuation of pro-inflammatory mediators in the lung and airway epithelium. In conclusion, we are the first to show an inflammatory and obstructive airway phenotype in the adult healthy murine Fgfr4 -/- lung, which might be due to the upregulation of ERK phosphorylation in the Fgfr4 -/- airway epithelium.
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Affiliation(s)
- Molly Easter
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Jaleesa Garth
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Elex S. Harris
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
- Gregory Fleming James Cystic Fibrosis Research Center, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Ren-Jay Shei
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Eric S. Helton
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Yuhua Wei
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Rebecca Denson
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Rennan Zaharias
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Steven M. Rowe
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
- Gregory Fleming James Cystic Fibrosis Research Center, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Patrick Geraghty
- Division of Pulmonary & Critical Care Medicine, Department of Medicine, State University of New York Downstate Medical Center, Brooklyn, NY, United States
| | - Christian Faul
- Division of Nephrology and Hypertension, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Jarrod W. Barnes
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
- Gregory Fleming James Cystic Fibrosis Research Center, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Stefanie Krick
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
- Gregory Fleming James Cystic Fibrosis Research Center, The University of Alabama at Birmingham, Birmingham, AL, United States
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10
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Li X, Wong SS, Tan C, Espinoza CR, Hagood JS. Loss of Thy-1 may reduce lung regeneration after pneumonectomy in mice. Minerva Med 2020; 112:622-630. [PMID: 32696636 DOI: 10.23736/s0026-4806.20.06691-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Lung regeneration plays an important role in lung repair after injury. It is reliant upon proliferation of multiple cell types in the lung, including endothelium, epithelium, and fibroblasts, as well as remodeling of the extracellular matrix. METHODS Lung regeneration following injury progresses via an initial infammatory response during which macrophages clear the tissue of cellular debris. This process continues through cellular proliferation when existing cells and progenitors act to repopulate cells lost during injury, followed by tissue maturation in which newly formed cells achieve a diferentiated phenotype. RESULTS Signaling pathways critical for lung regeneration include FGF, EGF, WNT, and NOTCH. In addition, HDACs, miRNAs, ELASTIN, and MMP14 have been shown to regulate lung regeneration. Partial pneumonectomy (PNX) has been used as a therapeutic and investigational tool for several decades. Following PNX the remaining lung increases in size to compensate for loss of volume and respiratory capacity. CONCLUSIONS Much has been learned about the triggers and mechanisms regulating pulmonary regeneration. However, the role of thymocyte differentiation antigen-1(thy-1) in post-PNX lung growth remains incompletely characterized. Thy-1 is a phosphatidylinositol glycoprotein with a relative molecular weight of 25000~37000 Da, which is expressed in almost all types of fibroblasts and regulates many biological functions. It not only supports the structure of fibroblasts, but also can balance cell proliferation, migration and regulate the synthesis of immune inflammatory mediators.
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Affiliation(s)
- Xiaoping Li
- Department of Thoracic Surgery, Tianjin First Central Hospital, Tianjin, China.,Department of Paediatrics, University of California San Diego, CA, USA
| | - Simon S Wong
- Department of Paediatrics, University of California San Diego, CA, USA
| | - Chunting Tan
- Department of Paediatrics, University of California San Diego, CA, USA
| | - Celia R Espinoza
- Department of Paediatrics, University of California San Diego, CA, USA
| | - James S Hagood
- Department of Pediatric Pulmonology, University of North Carolina, Chapel Hill, NC, USA -
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11
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Zhu S, Ye L, Bennett S, Xu H, He D, Xu J. Molecular structure and function of microfibrillar-associated proteins in skeletal and metabolic disorders and cancers. J Cell Physiol 2020; 236:41-48. [PMID: 32572962 DOI: 10.1002/jcp.29893] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/11/2020] [Accepted: 06/11/2020] [Indexed: 12/16/2022]
Abstract
Microfibrillar-associated proteins (MFAPs) are extracellular matrix glycoproteins, which play a role in microfibril assembly, elastinogenesis, and tissue homeostasis. MFAPs consist of five subfamily members, including MFAP1, MFAP2, MFAP3, MFAP4, and MFAP5. Among these, MFAP2 and MFAP5 are most closely related, and exhibit very limited amino acid sequence homology with MFAP1, MFAP3, and MFAP4. Gene expression profiling analysis reveals that MFAP2, MFAP5, and MFAP4 are specifically expressed in osteoblastic like cells, whereas MFAP1 and MFAP3 are more ubiquitously expressed, indicative of their diverse role in the tropism of tissues. Molecular structural analysis shows that each MFAP family member has distinct features, and functional evidence reveals discrete purposes of individual MFAPs. Animal studies indicate that MFAP2-deficient mice exhibit progressive osteopenia with elevated receptor activator of NF-κB ligand (RANKL) expression, whereas MFAP5-deficient mice are neutropenic, and MFAP4-deficient mice displayed emphysema-like pathology and the impaired formation of neointimal hyperplasia. Emerging data also suggest that MFAPs are involved in cancer progression and fat metabolism. Further understanding of tissue-specific pathophysiology of MFAPs might offer potential novel therapeutic targets for related diseases, such as skeletal and metabolic disorders, and cancers.
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Affiliation(s)
- Sipin Zhu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.,Division of Regenerative Biology, School of Biomedical Sciences, University of Western Australia, Perth, Australia
| | - Lin Ye
- Department of Orthopaedic Surgery, Lishui Municipal Central Hospital, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, Zhejiang, China
| | - Samuel Bennett
- Division of Regenerative Biology, School of Biomedical Sciences, University of Western Australia, Perth, Australia
| | - Huazi Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Dengwei He
- Department of Orthopaedic Surgery, Lishui Municipal Central Hospital, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, Zhejiang, China
| | - Jiake Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.,Division of Regenerative Biology, School of Biomedical Sciences, University of Western Australia, Perth, Australia
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12
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Sun X, Zhang R, Chen H, Du X, Chen S, Huang J, Liu M, Xu M, Luo F, Jin M, Su N, Qi H, Yang J, Tan Q, Zhang D, Ni Z, Liang S, Zhang B, Chen D, Zhang X, Luo L, Chen L, Xie Y. Fgfr3 mutation disrupts chondrogenesis and bone ossification in zebrafish model mimicking CATSHL syndrome partially via enhanced Wnt/β-catenin signaling. Theranostics 2020; 10:7111-7130. [PMID: 32641982 PMCID: PMC7330844 DOI: 10.7150/thno.45286] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 05/21/2020] [Indexed: 12/12/2022] Open
Abstract
CATSHL syndrome, characterized by camptodactyly, tall stature and hearing loss, is caused by loss-of-function mutations of fibroblast growth factor receptors 3 (FGFR3) gene. Most manifestations of patients with CATSHL syndrome start to develop in the embryonic stage, such as skeletal overgrowth, craniofacial abnormalities, however, the pathogenesis of these phenotypes especially the early maldevelopment remains incompletely understood. Furthermore, there are no effective therapeutic targets for this skeleton dysplasia. Methods: We generated fgfr3 knockout zebrafish by CRISPR/Cas9 technology to study the developmental mechanisms and therapeutic targets of CATSHL syndrome. Several zebrafish transgenic lines labeling osteoblasts and chondrocytes, and live Alizarin red staining were used to analyze the dynamical skeleton development in fgfr3 mutants. Western blotting, whole mount in situ hybridization, Edu labeling based cell proliferation assay and Wnt/β-catenin signaling antagonist were used to explore the potential mechanisms and therapeutic targets. Results: We found that fgfr3 mutant zebrafish, staring from early development stage, showed craniofacial bone malformation with microcephaly and delayed closure of cranial sutures, chondroma-like lesion and abnormal development of auditory sensory organs, partially resembling the clinical manifestations of patients with CATSHL syndrome. Further studies showed that fgfr3 regulates the patterning and shaping of pharyngeal arches and the timely ossification of craniofacial skeleton. The abnormal development of pharyngeal arch cartilage is related to the augmented hypertrophy and disordered arrangement of chondrocytes, while decreased proliferation, differentiation and mineralization of osteoblasts may be involved in the delayed maturation of skull bones. Furthermore, we revealed that deficiency of fgfr3 leads to enhanced IHH signaling and up-regulated canonical Wnt/β-catenin signaling, and pharmacological inhibition of Wnt/β-catenin could partially alleviate the phenotypes of fgfr3 mutants. Conclusions: Our study further reveals some novel phenotypes and underlying developmental mechanism of CATSHL syndrome, which deepens our understanding of the pathogenesis of CATSHL and the role of fgfr3 in skeleton development. Our findings provide evidence that modulation of Wnt/β-catenin activity could be a potential therapy for CATSHL syndrome and related skeleton diseases.
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Affiliation(s)
- Xianding Sun
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Ruobin Zhang
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Hangang Chen
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Xiaolan Du
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Shuai Chen
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Junlan Huang
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Mi Liu
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Meng Xu
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Fengtao Luo
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Min Jin
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Nan Su
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Huabing Qi
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Jing Yang
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Qiaoyan Tan
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Dali Zhang
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Zhenhong Ni
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Sen Liang
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Bin Zhang
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Di Chen
- Research Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Xin Zhang
- Departments of Ophthalmology, Pathology and Cell Biology, Columbia University, New York, NY 10032, USA
| | - Lingfei Luo
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Molecular Developmental Biology, School of Life Sciences, Southwest University, Beibei, Chongqing 400715, China
| | - Lin Chen
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Yangli Xie
- Department of Wound Repair and Rehabilitation Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing 400042, China
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13
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Yin Y, Ornitz DM. FGF9 and FGF10 activate distinct signaling pathways to direct lung epithelial specification and branching. Sci Signal 2020; 13:13/621/eaay4353. [PMID: 32127497 DOI: 10.1126/scisignal.aay4353] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Fibroblast growth factors (FGFs) 9 and 10 are essential during the pseudoglandular stage of lung development. Mesothelium-produced FGF9 is principally responsible for mesenchymal growth, whereas epithelium-produced FGF9 and mesenchyme-produced FGF10 guide lung epithelial development, and loss of either of these ligands affects epithelial branching. Because FGF9 and FGF10 activate distinct FGF receptors (FGFRs), we hypothesized that they would control distinct developmental processes. Here, we found that FGF9 signaled through epithelial FGFR3 to directly promote distal epithelial fate specification and inhibit epithelial differentiation. By contrast, FGF10 signaled through epithelial FGFR2b to promote epithelial proliferation and differentiation. Furthermore, FGF9-FGFR3 signaling functionally opposed FGF10-FGFR2b signaling, and FGFR3 preferentially used downstream phosphoinositide 3-kinase (PI3K) pathways, whereas FGFR2b relied on downstream mitogen-activated protein kinase (MAPK) pathways. These data demonstrate that, within lung epithelial cells, different FGFRs function independently; they bind receptor-specific ligands and direct distinct developmental functions through the activation of distinct downstream signaling pathways.
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Affiliation(s)
- Yongjun Yin
- Department of Developmental Biology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - David M Ornitz
- Department of Developmental Biology, Washington University School of Medicine, Saint Louis, MO 63110, USA.
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14
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Feifei W, Hui G, Ruiqiang Z, Qunxiang J, Yu'an X. MAGP2, a Component of Extracellular Matrix, Is Upregulated in Colorectal Cancer and Negatively Modulated by miR-200b-3p. Technol Cancer Res Treat 2020; 18:1533033819870777. [PMID: 31426719 PMCID: PMC6702771 DOI: 10.1177/1533033819870777] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Background: Colorectal cancer is one of the leading causes of cancer-related death worldwide, but its mechanism has not been clarified clearly. Microfibrial-associated glycoprotein 2 is mainly located in extracellular matrix, and its role in colorectal cancer is obscure. Methods: Immunohistochemical staining and quantitative real-time polymerase chain reaction were used to compare the expression level of microfibrial-associated glycoprotein 2 in colorectal cancer tissues and adjacent tissues. Western blot was used to detect the expression of microfibrial-associated glycoprotein 2 in colorectal cancer cell lines and normal colonic epithelium cell line. Kaplan-Meier analysis and χ2 test were applied to evaluate the potential of microfibrial-associated glycoprotein 2 to function as cancer biomarker. Lentiviral transduction was used to induce microfibrial-associated glycoprotein 2 overexpression in HCT116 cells and NCM460 cells, followed by detecting cell proliferation, migration, and invasion. Quantitative real-time polymerase chain reaction was used to investigate the changes in downstream genes after microfibrial-associated glycoprotein 2 overexpression. Luciferase assay was conducted to validate whether miR-200b-3p can directly target microfibrial-associated glycoprotein 2. Results: We validated that microfibrial-associated glycoprotein 2 was upregulated in colorectal cancer samples and cells. We also demonstrated its upregulation was associated with several clinicopathologic features such as Dukes stage (P = .048), differentiation status (P = .034), and local lymphatic metastasis (P = .036) of patients with colorectal cancer, and its high expression indicated shorter overall survival of the patients. Microfibrial-associated glycoprotein 2 overexpression remarkably promoted cell proliferation and metastasis via regulating the downstream genes of Notch, including hes family bHLH transcription factor 1 (HES1), Slug, Snail, matrix metalloproteinase 2, matrix metalloproteinase 9, and Kruppel-like factor 4. We also identified miR-200b-3p as a posttranscriptional regulator of microfibrial-associated glycoprotein 2, which partly explain the high expression mechanism of microfibrial-associated glycoprotein 2 in cancer tissues. Conclusion: Microfibrial-associated glycoprotein 2, negatively modulated by miR-200b-3p, is an oncogene of colorectal cancer associated with patients’ prognosis. It may function as a potential biomarker and therapeutic target for colorectal cancer.
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Affiliation(s)
- Wei Feifei
- 1 Department of Experimental Research, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, China
| | - Guo Hui
- 1 Department of Experimental Research, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, China
| | - Zhao Ruiqiang
- 2 Department of Biochemistry and Molecular Biology, Guangxi Medical University, Nanning, China
| | - Jiang Qunxiang
- 1 Department of Experimental Research, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, China
| | - Xie Yu'an
- 1 Department of Experimental Research, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, China
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15
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Hagan AS, Zhang B, Ornitz DM. Identification of a FGF18-expressing alveolar myofibroblast that is developmentally cleared during alveologenesis. Development 2020; 147:dev.181032. [PMID: 31862844 DOI: 10.1242/dev.181032] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 12/12/2019] [Indexed: 12/13/2022]
Abstract
Alveologenesis is an essential developmental process that increases the surface area of the lung through the formation of septal ridges. In the mouse, septation occurs postnatally and is thought to require the alveolar myofibroblast (AMF). Though abundant during alveologenesis, markers for AMFs are minimally detected in the adult. After septation, the alveolar walls thin to allow efficient gas exchange. Both loss of AMFs or retention and differentiation into another cell type during septal thinning have been proposed. Using a novel Fgf18:CreERT2 allele to lineage trace AMFs, we demonstrate that most AMFs are developmentally cleared during alveologenesis. Lung mesenchyme also contains other poorly described cell types, including alveolar lipofibroblasts (ALF). We show that Gli1:CreERT2 marks both AMFs as well as ALFs, and lineage tracing shows that ALFs are retained in adult alveoli while AMFs are lost. We further show that multiple immune cell populations contain lineage-labeled particles, suggesting a phagocytic role in the clearance of AMFs. The demonstration that the AMF lineage is depleted during septal thinning through a phagocytic process provides a mechanism for the clearance of a transient developmental cell population.
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Affiliation(s)
- Andrew S Hagan
- Department of Developmental Biology, Washington University School of Medicine, St Louis, MO 63110, USA
| | - Bo Zhang
- Department of Developmental Biology, Washington University School of Medicine, St Louis, MO 63110, USA
| | - David M Ornitz
- Department of Developmental Biology, Washington University School of Medicine, St Louis, MO 63110, USA
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16
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Lignelli E, Palumbo F, Myti D, Morty RE. Recent advances in our understanding of the mechanisms of lung alveolarization and bronchopulmonary dysplasia. Am J Physiol Lung Cell Mol Physiol 2019; 317:L832-L887. [PMID: 31596603 DOI: 10.1152/ajplung.00369.2019] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Bronchopulmonary dysplasia (BPD) is the most common cause of morbidity and mortality in preterm infants. A key histopathological feature of BPD is stunted late lung development, where the process of alveolarization-the generation of alveolar gas exchange units-is impeded, through mechanisms that remain largely unclear. As such, there is interest in the clarification both of the pathomechanisms at play in affected lungs, and the mechanisms of de novo alveoli generation in healthy, developing lungs. A better understanding of normal and pathological alveolarization might reveal opportunities for improved medical management of affected infants. Furthermore, disturbances to the alveolar architecture are a key histopathological feature of several adult chronic lung diseases, including emphysema and fibrosis, and it is envisaged that knowledge about the mechanisms of alveologenesis might facilitate regeneration of healthy lung parenchyma in affected patients. To this end, recent efforts have interrogated clinical data, developed new-and refined existing-in vivo and in vitro models of BPD, have applied new microscopic and radiographic approaches, and have developed advanced cell-culture approaches, including organoid generation. Advances have also been made in the development of other methodologies, including single-cell analysis, metabolomics, lipidomics, and proteomics, as well as the generation and use of complex mouse genetics tools. The objective of this review is to present advances made in our understanding of the mechanisms of lung alveolarization and BPD over the period 1 January 2017-30 June 2019, a period that spans the 50th anniversary of the original clinical description of BPD in preterm infants.
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Affiliation(s)
- Ettore Lignelli
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Francesco Palumbo
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Despoina Myti
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
| | - Rory E Morty
- Department of Lung Development and Remodeling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, member of the German Center for Lung Research, Giessen, Germany
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17
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Loss of microfibril-associated protein 5 (MFAP5) expression in colon cancer stroma. Virchows Arch 2019; 476:383-390. [DOI: 10.1007/s00428-019-02649-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 07/31/2019] [Accepted: 08/13/2019] [Indexed: 11/26/2022]
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18
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Li C, Lee MK, Gao F, Webster S, Di H, Duan J, Yang CY, Bhopal N, Peinado N, Pryhuber G, Smith SM, Borok Z, Bellusci S, Minoo P. Secondary crest myofibroblast PDGFRα controls the elastogenesis pathway via a secondary tier of signaling networks during alveologenesis. Development 2019; 146:dev.176354. [PMID: 31331942 PMCID: PMC6703710 DOI: 10.1242/dev.176354] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 07/11/2019] [Indexed: 12/16/2022]
Abstract
Postnatal alveolar formation is the most important and the least understood phase of lung development. Alveolar pathologies are prominent in neonatal and adult lung diseases. The mechanisms of alveologenesis remain largely unknown. We inactivated Pdgfra postnatally in secondary crest myofibroblasts (SCMF), a subpopulation of lung mesenchymal cells. Lack of Pdgfra arrested alveologenesis akin to bronchopulmonary dysplasia (BPD), a neonatal chronic lung disease. The transcriptome of mutant SCMF revealed 1808 altered genes encoding transcription factors, signaling and extracellular matrix molecules. Elastin mRNA was reduced, and its distribution was abnormal. Absence of Pdgfra disrupted expression of elastogenic genes, including members of the Lox, Fbn and Fbln families. Expression of EGF family members increased when Tgfb1 was repressed in mouse. Similar, but not identical, results were found in human BPD lung samples. In vitro, blocking PDGF signaling decreased elastogenic gene expression associated with increased Egf and decreased Tgfb family mRNAs. The effect was reversible by inhibiting EGF or activating TGFβ signaling. These observations demonstrate the previously unappreciated postnatal role of PDGFA/PDGFRα in controlling elastogenic gene expression via a secondary tier of signaling networks composed of EGF and TGFβ.
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Affiliation(s)
- Changgong Li
- Department of Pediatrics, Division of Newborn Medicine, University of Southern California and Children's Hospital Los Angeles, Los Angeles, CA 90033, USA
| | - Matt K Lee
- Department of Pediatrics, Division of Newborn Medicine, University of Southern California and Children's Hospital Los Angeles, Los Angeles, CA 90033, USA
| | - Feng Gao
- Department of Pediatrics, Division of Newborn Medicine, University of Southern California and Children's Hospital Los Angeles, Los Angeles, CA 90033, USA
| | - Sha Webster
- Department of Pediatrics, Division of Newborn Medicine, University of Southern California and Children's Hospital Los Angeles, Los Angeles, CA 90033, USA
| | - Helen Di
- Department of Pediatrics, Division of Newborn Medicine, University of Southern California and Children's Hospital Los Angeles, Los Angeles, CA 90033, USA
| | - Jiang Duan
- Department of Pediatrics, First Affiliated Hospital of Kunming Medical University, Kunming 650032, Yunnan, China
| | - Chang-Yo Yang
- Department of Pediatrics, Chang Gung Children's Hospital and Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan 33305, Taiwan
| | - Navin Bhopal
- Department of Pediatrics, Division of Newborn Medicine, University of Southern California and Children's Hospital Los Angeles, Los Angeles, CA 90033, USA
| | - Neil Peinado
- Department of Pediatrics, Division of Newborn Medicine, University of Southern California and Children's Hospital Los Angeles, Los Angeles, CA 90033, USA
| | - Gloria Pryhuber
- Department of Pediatrics, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Susan M Smith
- Department of Pediatrics, Division of Newborn Medicine, University of Southern California and Children's Hospital Los Angeles, Los Angeles, CA 90033, USA
| | - Zea Borok
- Hastings Center for Pulmonary Research and Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Saverio Bellusci
- Department of Pediatrics, Division of Newborn Medicine, University of Southern California and Children's Hospital Los Angeles, Los Angeles, CA 90033, USA.,Excellence Cluster Cardio-Pulmonary System (ECCPS), Universities of Giessen and Marburg Lung Center (UGMLC), Justus-Liebig-University Giessen, German Center for Lung Research (DZL), 35392, Giessen, Germany
| | - Parviz Minoo
- Department of Pediatrics, Division of Newborn Medicine, University of Southern California and Children's Hospital Los Angeles, Los Angeles, CA 90033, USA
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19
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Qiu P, Liu Y, Zhang J. Recent Advances in Studies of Molecular Hydrogen against Sepsis. Int J Biol Sci 2019; 15:1261-1275. [PMID: 31223285 PMCID: PMC6567800 DOI: 10.7150/ijbs.30741] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 01/09/2019] [Indexed: 12/12/2022] Open
Abstract
Sepsis is a syndrome comprised of a series of life-threatening organ dysfunctions caused by a maladjusted body response to infection with no effective treatment. Molecular hydrogen is a new type of antioxidant with strong free radical scavenging ability, which has been demonstrated to be effective for treating various diseases, such as infection, trauma, poisoning, organ ischemia-reperfusion, metabolic diseases, and tumors. Molecular hydrogen exerts multiple biological effects involving anti-inflammation, anti-oxidation, anti-apoptosis, anti-shock, and autophagy regulation, which may attenuate the organ and barrier damage caused by sepsis. However, the underlying molecular mechanisms remain elusive, but are likely related to the signaling pathways involved. This review focuses on the research progress and potential mechanisms of molecular hydrogen against sepsis to provide a theoretical basis for clinical treatment.
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Affiliation(s)
- Peng Qiu
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yang Liu
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jin Zhang
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, China
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20
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Loering S, Cameron GJM, Starkey MR, Hansbro PM. Lung development and emerging roles for type 2 immunity. J Pathol 2019; 247:686-696. [PMID: 30506724 DOI: 10.1002/path.5211] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/06/2018] [Accepted: 11/26/2018] [Indexed: 12/12/2022]
Abstract
Lung development is a complex process mediated through the interaction of multiple cell types, factors and mediators. In mice, it starts as early as embryonic day 9 and continues into early adulthood. The process can be separated into five different developmental stages: embryonic, pseudoglandular, canalicular, saccular, and alveolar. Whilst lung bud formation and branching morphogenesis have been studied extensively, the mechanisms of alveolarisation are incompletely understood. Aberrant lung development can lead to deleterious consequences for respiratory health such as bronchopulmonary dysplasia (BPD), a disease primarily affecting preterm neonates, which is characterised by increased pulmonary inflammation and disturbed alveolarisation. While the deleterious effects of type 1-mediated inflammatory responses on lung development have been well established, the role of type 2 responses in postnatal lung development remains poorly understood. Recent studies indicate that type 2-associated immune cells, such as group 2 innate lymphoid cells and alveolar macrophages, are increased in number during postnatal alveolarisation. Here, we present the current state of understanding of the postnatal stages of lung development and the key cell types and mediators known to be involved. We also provide an overview of how stem cells are involved in lung development and regeneration, and the negative influences of respiratory infections. Copyright © 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Svenja Loering
- Priority Research Center's GrowUpWell and Healthy Lungs, School of Biomedical Sciences and Pharmacy, The University of Newcastle and Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Guy J M Cameron
- Priority Research Center's GrowUpWell and Healthy Lungs, School of Biomedical Sciences and Pharmacy, The University of Newcastle and Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Malcolm R Starkey
- Priority Research Center's GrowUpWell and Healthy Lungs, School of Biomedical Sciences and Pharmacy, The University of Newcastle and Hunter Medical Research Institute, Newcastle, New South Wales, Australia
| | - Philip M Hansbro
- Priority Research Center's GrowUpWell and Healthy Lungs, School of Biomedical Sciences and Pharmacy, The University of Newcastle and Hunter Medical Research Institute, Newcastle, New South Wales, Australia.,Center for Inflammation, Centenary Institute and The School of Life Sciences, University of Technology, Sydney, New South Wales, Australia
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21
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Danopoulos S, Thornton ME, Grubbs BH, Frey MR, Warburton D, Bellusci S, Al Alam D. Discordant roles for FGF ligands in lung branching morphogenesis between human and mouse. J Pathol 2018; 247:254-265. [PMID: 30357827 DOI: 10.1002/path.5188] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 09/26/2018] [Accepted: 10/18/2018] [Indexed: 01/08/2023]
Abstract
Fibroblast growth factor (FGF) signaling plays an important role in lung organogenesis. Over recent decades, FGF signaling in lung development has been extensively studied in animal models. However, little is known about the expression, localization, and functional roles of FGF ligands during human fetal lung development. Therefore, we aimed to determine the expression and function of several FGF ligands and receptors in human lung development. Using in situ hybridization (ISH) and RNA sequencing, we assessed their expression and distribution in native human fetal lung. Human fetal lung explants were treated with recombinant FGF7, FGF9, or FGF10 in air-liquid interface culture. Explants were analyzed grossly to observe differences in branching pattern as well as at the cellular and molecular level. ISH demonstrated that FGF7 is expressed in both the epithelium and mesenchyme; FGF9 is mainly localized in the distal epithelium, whereas FGF10 demonstrated diffuse expression throughout the parenchyma, with some expression in the smooth muscle cells (SMCs). FGFR2 expression was high in both proximal and distal epithelial cells as well as the SMCs. FGFR3 was expressed mostly in the epithelial cells, with lower expression in the mesenchyme, while FGFR4 was highly expressed throughout the mesenchyme and in the distal epithelium. Using recombinant FGFs, we demonstrated that FGF7 and FGF9 had similar effects on human fetal lung as on mouse fetal lung; however, FGF10 caused the human explants to expand and form cysts as opposed to inducing epithelial branching as seen in the mouse. In conjunction with decreased branching, treatment with recombinant FGF7, FGF9, and FGF10 also resulted in decreased double-positive SOX2/SOX9 progenitor cells, which are exclusively present in the distal epithelial tips in early human fetal lung. Although FGF ligand localization may be somewhat comparable between developing mouse and human lungs, their functional roles may differ substantially. Copyright © 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Soula Danopoulos
- Department of Pediatric Surgery, Developmental Biology and Regenerative Medicine Program, The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA, USA.,Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Matthew E Thornton
- Department of Obstetrics and Gynecology, Maternal Fetal Medicine Division, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Brendan H Grubbs
- Department of Pediatric Surgery, Developmental Biology and Regenerative Medicine Program, The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA, USA.,Department of Obstetrics and Gynecology, Maternal Fetal Medicine Division, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Mark R Frey
- Department of Pediatric Surgery, Developmental Biology and Regenerative Medicine Program, The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA, USA.,Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - David Warburton
- Department of Pediatric Surgery, Developmental Biology and Regenerative Medicine Program, The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA, USA.,Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Saverio Bellusci
- Department of Pediatric Surgery, Developmental Biology and Regenerative Medicine Program, The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA, USA.,Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.,Excellence Cluster Cardio-Pulmonary System (ECCPS), Universities of Giessen and Marburg Lung Center (UGMLC), Justus-Liebig-University Giessen, German Center for Lung Research (DZL), Giessen, Germany
| | - Denise Al Alam
- Department of Pediatric Surgery, Developmental Biology and Regenerative Medicine Program, The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, CA, USA.,Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
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22
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Li Q, Zhang Y, Jiang Q. MFAP5 suppression inhibits migration/invasion, regulates cell cycle and induces apoptosis via promoting ROS production in cervical cancer. Biochem Biophys Res Commun 2018; 507:51-58. [PMID: 30454902 DOI: 10.1016/j.bbrc.2018.10.146] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 10/23/2018] [Indexed: 01/01/2023]
Abstract
Cervical cancer is one of the most lethal types of cancer among female. Microfibrillar-associated protein 5 (MFAP5) is an extracellular matrix (ECM) glycoprotein, and is confirmed to be involved in cell signaling during microfibril assembly, elastinogenesis and cell survival. However, the role of MFAP5 in cervical cancer development and progression remains poorly understood. In the study, MFAP5 was over-expressed in human cervical cancers, and in different cervical cancer cell lines. Patients suffering from cervical cancer with low MFAP5 expression exhibited better survival rate. Suppressing MFAP5 in cervical cancer cells markedly reduced the cell proliferation, migration and invasion by modulating epithelial-mesenchymal transition (EMT)-related signaling pathway. In addition, MFAP5 knockdown induced large number of cells distributed in G2/M phase, along with reduced Cyclin B1, Cyclin D1 and cyclin-dependent kinase 4 (CDK4) expressions, and enhanced p21 and p53 levels. Moreover, apoptosis was highly induced by MFAP5 silence through reducing Bcl-xl and Bcl-2 expressions, and promoting Bax, cleaved Caspase-3 and poly (ADP-Ribose) polymerase (PARP) expressions in cervical cancer cells. Reactive oxygen species (ROS) production levels were also higher in MFAP5-knockdown cells, along with Jun-N-terminal kinase (JNK) activation. Importantly, we found that MFAP5 knockdown-inhibited cervical cancer cell growth was dependent on ROS production. Finally, the depletion of MFAP5 prevented cervical cancer progression in vivo. In summary, our study identified a critical role played by MFAP5 in the progression of cervical cancer and the potential mechanisms by which exerted its effects, indicating that targeting MFAP5-related pathways could be conducive to the therapies for cervical cancer.
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Affiliation(s)
- Qingmei Li
- 2nd Area of Obstetrics, The People's Hospital of Pingyi County, No. 7, Jinhua Road, Pingyi Street, Linyi, 273300, China
| | - Yanqin Zhang
- Department of Nursing, Yulin Traditional Chinese Medicine Hospital, No. 131 Xinjian South Road, Yuyang District, Yulin, 719000, China
| | - Qiuli Jiang
- Department of Gynecology, Hanzhong Central Hospital, No.22, Kangfu Road, Hantai District, Hanzhomg, 723000, China.
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23
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Hox5 genes direct elastin network formation during alveologenesis by regulating myofibroblast adhesion. Proc Natl Acad Sci U S A 2018; 115:E10605-E10614. [PMID: 30348760 DOI: 10.1073/pnas.1807067115] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Hox5 genes (Hoxa5, Hoxb5, Hoxc5) are exclusively expressed in the lung mesenchyme during embryogenesis, and the most severe phenotypes result from constitutive loss of function of all three genes. Because Hox5 triple null mutants exhibit perinatal lethality, the contribution of this paralogous group to postembryonic lung development is unknown. Intriguingly, expression of all three Hox5 genes peaks during the first 2 weeks after birth, reaching levels far exceeding those measured at embryonic stages, and surviving Hoxa5 single and Hox5 AabbCc compound mutants exhibit defects in the localization of alveolar myofibroblasts. To define the contribution of the entire Hox5 paralogous group to this process, we generated an Hoxa5 conditional allele to use with our existing null alleles for Hoxb5 and Hoxc5 Postnatally, mesenchymal deletion of Hoxa5 in an Hoxb5/Hoxc5 double-mutant background results in severe alveolar simplification. The elastin network required for alveolar formation is dramatically disrupted in Hox5 triple mutants, while the basal lamina, interstitial matrix, and fibronectin are normal. Alveolar myofibroblasts remain Pdgfrα+/SMA+ double positive and present in normal numbers, indicating that the irregular elastin network is not due to fibroblast differentiation defects. Rather, we observe that SMA+ myofibroblasts of Hox5 triple mutants are morphologically abnormal both in vivo and in vitro with highly reduced adherence to fibronectin. This loss of adhesion is a result of loss of the integrin heterodimer Itga5b1 in mutant fibroblasts. Collectively, these data show an important role for Hox5 genes in lung fibroblast adhesion necessary for proper elastin network formation during alveologenesis.
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24
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Li R, Bernau K, Sandbo N, Gu J, Preissl S, Sun X. Pdgfra marks a cellular lineage with distinct contributions to myofibroblasts in lung maturation and injury response. eLife 2018; 7:36865. [PMID: 30178747 PMCID: PMC6122952 DOI: 10.7554/elife.36865] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 08/27/2018] [Indexed: 12/31/2022] Open
Abstract
Pdgfra-expressing (Pdgfra+) cells have been implicated as progenitors in many mesenchymal tissues. To determine lineage potential, we generated PdgfrartTA knockin mice using CRISPR/Cas9. During lung maturation, counter to a prior study reporting that Pdgfra+ cells give rise equally to myofibroblasts and lipofibroblasts, lineage tracing using PdgfrartTA;tetO-cre mice indicated that ~95% of the lineaged cells are myofibroblasts. Genetic ablation of Pdgfra+cells using PdgfrartTA-driven diphtheria toxin (DTA) led to alveolar simplification, demonstrating that these cells are essential for building the gas exchange surface area. In the adult bleomycin model of lung fibrosis, lineaged cells increased to contribute to pathological myofibroblasts. In contrast, in a neonatal hyperoxia model of bronchopulmonary dysplasia (BPD), lineaged cells decreased and do not substantially contribute to pathological myofibroblasts. Our findings revealed complexity in the behavior of the Pdgfra-lineaged cells as exemplified by their distinct contributions to myofibroblasts in normal maturation, BPD and adult fibrosis.
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Affiliation(s)
- Rongbo Li
- Department of Pediatrics, University of California, San Diego, La Jolla, United States.,Laboratory of Genetics, Department of Medical Genetics, University of Wisconsin-Madison, Madison, United States
| | - Ksenija Bernau
- Department of Medicine, University of Wisconsin-Madison, Madison, United States
| | - Nathan Sandbo
- Department of Medicine, University of Wisconsin-Madison, Madison, United States
| | - Jing Gu
- Center for Epigenomics, Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, United States
| | - Sebastian Preissl
- Center for Epigenomics, Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, United States
| | - Xin Sun
- Department of Pediatrics, University of California, San Diego, La Jolla, United States.,Laboratory of Genetics, Department of Medical Genetics, University of Wisconsin-Madison, Madison, United States
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25
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Chanda D, Otoupalova E, Smith SR, Volckaert T, De Langhe SP, Thannickal VJ. Developmental pathways in the pathogenesis of lung fibrosis. Mol Aspects Med 2018; 65:56-69. [PMID: 30130563 DOI: 10.1016/j.mam.2018.08.004] [Citation(s) in RCA: 260] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 08/17/2018] [Indexed: 12/20/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive and terminal lung disease with no known cure. IPF is a disease of aging, with median age of diagnosis over 65 years. Median survival is between 3 and 5 years after diagnosis. IPF is characterized primarily by excessive deposition of extracellular matrix (ECM) proteins by activated lung fibroblasts and myofibroblasts, resulting in reduced gas exchange and impaired pulmonary function. Growing evidence supports the concept of a pro-fibrotic environment orchestrated by underlying factors such as genetic predisposition, chronic injury and aging, oxidative stress, and impaired regenerative responses may account for disease development and persistence. Currently, two FDA approved drugs have limited efficacy in the treatment of IPF. Many of the genes and gene networks associated with lung development are induced or activated in IPF. In this review, we analyze current knowledge in the field, gained from both basic and clinical research, to provide new insights into the disease process, and potential approaches to treatment of pulmonary fibrosis.
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Affiliation(s)
- Diptiman Chanda
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, 35294, USA.
| | - Eva Otoupalova
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Samuel R Smith
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Thomas Volckaert
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Stijn P De Langhe
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Victor J Thannickal
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, 35294, USA.
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26
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Nikolić MZ, Sun D, Rawlins EL. Human lung development: recent progress and new challenges. Development 2018; 145:145/16/dev163485. [PMID: 30111617 PMCID: PMC6124546 DOI: 10.1242/dev.163485] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Recent studies have revealed biologically significant differences between human and mouse lung development, and have reported new in vitro systems that allow experimental manipulation of human lung models. At the same time, emerging clinical data suggest that the origins of some adult lung diseases are found in embryonic development and childhood. The convergence of these research themes has fuelled a resurgence of interest in human lung developmental biology. In this Review, we discuss our current understanding of human lung development, which has been profoundly influenced by studies in mice and, more recently, by experiments using in vitro human lung developmental models and RNA sequencing of human foetal lung tissue. Together, these approaches are helping to shed light on the mechanisms underlying human lung development and disease, and may help pave the way for new therapies. Summary: This Review describes how recent technological advances have shed light on the mechanisms underlying human lung development and disease, and outlines the future challenges in this field.
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Affiliation(s)
- Marko Z Nikolić
- Wellcome Trust/CRUK Gurdon Institute, Wellcome Trust/MRC Stem Cell Institute, Department of Pathology, University of Cambridge, Cambridge CB2 1QN, UK.,University of Cambridge School of Clinical Medicine, Department of Medicine, Cambridge CB2 0QQ, UK
| | - Dawei Sun
- Wellcome Trust/CRUK Gurdon Institute, Wellcome Trust/MRC Stem Cell Institute, Department of Pathology, University of Cambridge, Cambridge CB2 1QN, UK
| | - Emma L Rawlins
- Wellcome Trust/CRUK Gurdon Institute, Wellcome Trust/MRC Stem Cell Institute, Department of Pathology, University of Cambridge, Cambridge CB2 1QN, UK
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27
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Wu Z, Wang T, Fang M, Huang W, Sun Z, Xiao J, Yan W. MFAP5 promotes tumor progression and bone metastasis by regulating ERK/MMP signaling pathways in breast cancer. Biochem Biophys Res Commun 2018. [PMID: 29526753 DOI: 10.1016/j.bbrc.2018.03.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Breast cancer accounts for about 30% of all cancers in women, while approximately 70% breast cancer patients developed bone metastases throughout the course of their disease, highlighting the importance of exploring new therapeutic targets. Microfibrillar-associated protein 5 (MFAP5) is a component of extracellular elastic microfibril which has been confirmed to function in tissue development and cancer progression. But the role of MFAP5 in breast cancer remains unclear. The present study demonstrated that MFAP5 was up-regulated in breast cancers compared with that in normal breast tissues, and further increased in breast cancer bone metastasis. Functionally, MFAP5 overexpression accelerated breast cancer cell proliferation and migration, while an opposite effect was observed when MFAP5 was knocked down. In addition, up-regulation of MFAP5 increased the expression of MMP2 and MMP9 and activated the ERK signaling pathway. Conversely, inhibition of MFAP5 suppressed the expression of MMP2, MMP9, p-FAK, p-Erk1/2 and p-cJun. These findings may provide a better understanding about the mechanism of breast cancer and suggest that MFAP5 may be a potential prognostic biomarker and therapeutic target for breast cancer, especially for bone metastasis of breast cancer.
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Affiliation(s)
- Zhiqiang Wu
- Department of Musculoskeletal Tumor, Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Ting Wang
- Department of Orthopaedic Oncology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Meng Fang
- Department of Musculoskeletal Tumor, Shanghai Cancer Center, Fudan University, Shanghai, China; Department of Orthopaedic Oncology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Wending Huang
- Department of Musculoskeletal Tumor, Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Zhengwang Sun
- Department of Musculoskeletal Tumor, Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Jianru Xiao
- Department of Orthopaedic Oncology, Changzheng Hospital, Second Military Medical University, Shanghai, China.
| | - Wangjun Yan
- Department of Musculoskeletal Tumor, Shanghai Cancer Center, Fudan University, Shanghai, China; Department of Orthopaedic Oncology, Changzheng Hospital, Second Military Medical University, Shanghai, China.
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28
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Abstract
Microfibril-associated glycoproteins 1 and 2 (MAGP-1, MAGP-2) are protein components of extracellular matrix microfibrils. These proteins interact with fibrillin, the core component of microfibrils, and impart unique biological properties that influence microfibril function in vertebrates. MAGPs bind active forms of TGFβ and BMPs and are capable of modulating Notch signaling. Mutations in MAGP-1 or MAGP-2 have been linked to thoracic aneurysms and metabolic disease in humans. MAGP-2 has also been shown to be an important biomarker in several human cancers. Mice lacking MAGP-1 or MAGP-2 have defects in multiple organ systems, which reflects the widespread distribution of microfibrils in vertebrate tissues. This review summarizes our current understanding of the function of the MAGPs and their relationship to human disease.
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Affiliation(s)
- Clarissa S Craft
- Division of Bone and Mineral Research, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, United States
| | - Thomas J Broekelmann
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO 63110, United States
| | - Robert P Mecham
- Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO 63110, United States.
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