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Zong K, Liu B, Li S, Li Y, Guo S. Endobronchial optical coherence tomography helps to estimate the cartilage damage of the central airway in TBTB patients. Front Cell Infect Microbiol 2023; 13:1278281. [PMID: 38099218 PMCID: PMC10720589 DOI: 10.3389/fcimb.2023.1278281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 11/10/2023] [Indexed: 12/17/2023] Open
Abstract
Purpose At present, there are few examination methods used to evaluate tracheobronchial cartilage damage. In our study, we explored whether endobronchial optical coherence tomography (EB-OCT) can be used to estimate central airway cartilage damage in tracheobronchial tuberculosis (TBTB) patients. Methods In our study, we used the OCTICS Imaging system to perform EB-OCT scanning for TBTB patients. The thickness of the central airway wall and cartilage was measured by the OCTICS software system workstation. Results There were 102 TBTB patients included in our study cohort. Their EB-OCT images of the central airway cartilage showed that abnormal cartilage manifests as thinning of the cartilage, cartilage damage, cartilage destruction, and even cartilage deficiency. The cartilage morphology becomes irregular and discontinuous. Some parts of the cartilage become brighter in grayscale. The intima of the cartilage is thickened and discontinuous, and the boundary with submucosa and mucosa is unclear. Conclusion Our study conducted EB-OCT examination of the central airway cartilage of TBTB patients in vivo for the first time. EB-OCT helps to estimate the cartilage damage of the central airway in TBTB patients to some extent.
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Affiliation(s)
- Kaican Zong
- Department of Respiratory Medicine, The First Affiliated Hospital, Chongqing Medical University, Chongqing, China
- Department of Respiratory Medicine, The Central Hospital Affiliated Chongqing University of Technology, Chongqing, China
| | - Bin Liu
- Department of Respiratory Medicine, The First Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Shiying Li
- Department of Infectious Diseases, Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Yishi Li
- Department of Respiratory Medicine, The First Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Shuliang Guo
- Department of Respiratory Medicine, The First Affiliated Hospital, Chongqing Medical University, Chongqing, China
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Hong Y, Shan S, Gu Y, Huang H, Zhang Q, Han Y, Dong Y, Liu Z, Huang M, Ren T. Malfunction of airway basal stem cells plays a crucial role in pathophysiology of tracheobronchopathia osteoplastica. Nat Commun 2022; 13:1309. [PMID: 35288560 PMCID: PMC8921516 DOI: 10.1038/s41467-022-28903-7] [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: 10/29/2020] [Accepted: 02/15/2022] [Indexed: 11/25/2022] Open
Abstract
Understanding disease-associated stem cell abnormality has major clinical implications for prevention and treatment of human disorders, as well as for regenerative medicine. Here we report a multifaceted study on airway epithelial stem cells in Tracheobronchopathia Osteochondroplastica (TO), an under-detected tracheobronchial disorder of unknown etiology and lack of specific treatment. Epithelial squamous metaplasia and heterotopic bone formation with abnormal cartilage proliferation and calcium deposits are key pathological hallmarks of this disorder, but it is unknown whether they are coincident or share certain pathogenic mechanisms in common. By functional evaluation and genome-wide profiling at both transcriptional and epigenetic levels, we reveal a role of airway basal cells in TO progression by acting as a repository of inflammatory and TGFβ-BMP signals, which contributes to both epithelial metaplasia and mesenchymal osteo-chondrogenesis via extracellular signaling and matrix remodeling. Restoration of microenvironment by cell correction or local pathway intervention may provide therapeutic benefits. Tracheobronchopathia osteoplastica (TO), is an underreported affliction characterized by squamous metaplasia and heterotopic bone formation in trachea and bronchi. Here the authors apply functional, as well as genome-wide transcriptional and epigenetic profiling to identify airway basal cells dysfunction underlying TO.
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3
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You K, Gu H, Yuan Z, Xu X. Tumor Necrosis Factor Alpha Signaling and Organogenesis. Front Cell Dev Biol 2021; 9:727075. [PMID: 34395451 PMCID: PMC8361451 DOI: 10.3389/fcell.2021.727075] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 07/08/2021] [Indexed: 01/04/2023] Open
Abstract
Tumor necrosis factor alpha (TNF-α) plays important roles in processes such as immunomodulation, fever, inflammatory response, inhibition of tumor formation, and inhibition of viral replication. TNF-α and its receptors are ubiquitously expressed in developing organs and they regulate the survival, proliferation, and apoptosis of embryonic stem cells (ESCs) and progenitor cells. TNF-α is an important inflammatory factor that also regulates the inflammatory response during organogenesis, and its cytotoxic effects can interfere with normal developmental processes, even leading to the onset of diseases. This review summarizes the various roles of TNF-α in organogenesis in terms of its secreting pattern, concentration-dependent activities, and interactions with other signaling pathways. We also explored new potential functions of TNF-α.
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Affiliation(s)
- Kai You
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Hui Gu
- Key Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital of China Medical University, Shenyang, China
| | - Zhengwei Yuan
- Key Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xuewen Xu
- Key Laboratory of Health Ministry for Congenital Malformation, Shengjing Hospital of China Medical University, Shenyang, China.,Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
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4
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Tsukamoto M, Kondo T, Miyoshi H, Toyota Y, Yokomi H, Sumii A, Shorin D, Takahashi S, Tsutsumi YM. Postoperative Tracheal Compression Requiring Transposition of the Brachiocephalic Artery After Bentall Surgery Combined With Total Arch Replacement in a Patient With Loeys-Dietz Syndrome. J Cardiothorac Vasc Anesth 2021; 36:2532-2535. [PMID: 34366214 DOI: 10.1053/j.jvca.2021.07.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 07/02/2021] [Accepted: 07/09/2021] [Indexed: 11/11/2022]
Affiliation(s)
- Marumi Tsukamoto
- Department of Anesthesiology and Critical Care, Hiroshima University Hospital, Hiroshima, Japan
| | - Takashi Kondo
- Department of Anesthesiology and Critical Care, Hiroshima University Hospital, Hiroshima, Japan.
| | - Hirotsugu Miyoshi
- Department of Anesthesiology and Critical Care, Hiroshima University Hospital, Hiroshima, Japan
| | - Yukari Toyota
- Department of Anesthesiology and Critical Care, Hiroshima University Hospital, Hiroshima, Japan
| | - Hiroshi Yokomi
- Department of Anesthesiology and Critical Care, Hiroshima University Hospital, Hiroshima, Japan
| | - Ayako Sumii
- Department of Anesthesiology and Critical Care, Hiroshima University Hospital, Hiroshima, Japan
| | - Daiki Shorin
- Department of Anesthesiology and Critical Care, Hiroshima University Hospital, Hiroshima, Japan
| | - Shinya Takahashi
- Department of Cardiovascular Surgery, Hiroshima University Hospital, Hiroshima, Japan
| | - Yasuo M Tsutsumi
- Department of Anesthesiology and Critical Care, Hiroshima University Hospital, Hiroshima, Japan
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Kishimoto K, Morimoto M. Mammalian tracheal development and reconstruction: insights from in vivo and in vitro studies. Development 2021; 148:dev198192. [PMID: 34228796 PMCID: PMC8276987 DOI: 10.1242/dev.198192] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The trachea delivers inhaled air into the lungs for gas exchange. Anomalies in tracheal development can result in life-threatening malformations, such as tracheoesophageal fistula and tracheomalacia. Given the limitations of current therapeutic approaches, development of technologies for the reconstitution of a three-dimensional trachea from stem cells is urgently required. Recently, single-cell sequencing technologies and quantitative analyses from cell to tissue scale have been employed to decipher the cellular basis of tracheal morphogenesis. In this Review, recent advances in mammalian tracheal development and the generation of tracheal tissues from pluripotent stem cells are summarized.
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Affiliation(s)
- Keishi Kishimoto
- Laboratory for Lung Development and Regeneration, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe 650-0047, Japan
- RIKEN BDR–CuSTOM Joint Laboratory, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
- Center for Stem Cell & Organoid Medicine (CuSTOM), Perinatal Institute, Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Mitsuru Morimoto
- Laboratory for Lung Development and Regeneration, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe 650-0047, Japan
- RIKEN BDR–CuSTOM Joint Laboratory, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
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Li L, Feng J, Zhao S, Rong Z, Lin Y. SOX9 inactivation affects the proliferation and differentiation of human lung organoids. Stem Cell Res Ther 2021; 12:343. [PMID: 34112251 PMCID: PMC8194236 DOI: 10.1186/s13287-021-02422-6] [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: 01/17/2021] [Accepted: 05/27/2021] [Indexed: 11/16/2022] Open
Abstract
Background The regulation of the transcription factor sex-determining region Y-box transcription factor 9 (SOX9) in lung development has been described in mouse, but the same principles apply to human lung development is unknown due to a lack of appropriate experimental approaches and models. Methods Here, we used gene editing technology to inactivate SOX9 in human embryonic stem cells that were then induced to differentiate into lung organoids to investigate the role of SOX9 in human lung epithelium development. Results Complete knockout of the transactivation domain of SOX9 by gene editing resulted in indels in both alleles of SOX9. SOX9−/− hESCs could be induced to differentiate into lung progenitor organoids. In vitro long-term expansion showed that SOX9 inactivation did not affect the differentiation of pulmonary epithelial cells, but promoted apoptosis and reduced proliferative capacity in the organoids. When lung progenitor organoids were transplanted under the kidney capsule of immunodeficient mice, expression of the club cell marker secretoglobin family 1A member 1 (SCGB1A1) was detected in SOX9−/− transplants but was absent in wild-type (WT) transplants. The maturation of goblet cells was also affected by SOX9 inactivation, as evidenced by the presence of mucin 5 AC (MUC5AC) in the cytoplasm of SOX9−/− grafts as compared to WT grafts in which most MUC5AC was secreted into the lumen. In vivo lung orthotopic transplantations showed that SOX9 inactivation had a limited effect on the differentiation of alveolar cells and lung regeneration in injured mice. Conclusions SOX9 modulates the proliferative capacity of lung epithelium but is not an indispensable transcription factor in the regulation of human lung epithelium development. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-021-02422-6.
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Affiliation(s)
- Lian Li
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Jianqi Feng
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Shanshan Zhao
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Zhili Rong
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China. .,Dermatology Hospital, Southern Medical University, Guangzhou, 510091, China. .,Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, 510005, China.
| | - Ying Lin
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Key Laboratory of Organ Failure Research (Ministry of Education), Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
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Tando S, Sakai K, Takayama S, Fukunaga K, Higashi M, Fumino S, Aoi S, Furukawa T, Tajiri T, Ogi H, Itoh K. Maldevelopment of intrapulmonary bronchial cartilage in congenital diaphragmatic hernia. Pediatr Pulmonol 2020; 55:1771-1780. [PMID: 32374083 DOI: 10.1002/ppul.24799] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 04/21/2020] [Accepted: 04/21/2020] [Indexed: 11/10/2022]
Abstract
BACKGROUND Pulmonary hypoplasia is an important cause of morbidity and mortality in infants with congenital diaphragmatic hernia (CDH). This study aimed to verify our hypothesis that the abnormal development of bronchial cartilage as well as alveolar immaturity, might play a central role in hypoplasia of the lung in human CDH. METHOD We retrospectively analyzed autopsied lungs from 10 CDH cases and compared with nine age-matched controls to assess the bronchial cartilage and alveolar maturity using morphological techniques. RESULT Ki-67 and thyroid transcription factor-1 (TTF-1) expression in the alveoli significantly increased in bilateral lungs with CDH. The shortest distance from the bronchial cartilage to the pleura was significantly shorter in ipsilateral (left) lungs with CDH, showing a positive correlation with the radial alveolar count (RAC). Regarding the small bronchial cartilages less than 20 000 μm2 , the average cartilage area significantly decreased in left lungs with CDH, and tended to decrease in right lungs with CDH. In addition, cartilage around the bronchi less than 200 μm in diameter tended to be smaller in left lungs with CDH. In contrast, regarding the cartilage around the bronchi 200 to 400 μm in diameter, the ratio of the total cartilage area relative to the bronchial diameter tended to be higher in left lungs with CDH, although there was a large variation. CONCLUSIONS These opposite directional cartilage abnormalities around the distal and more proximal bronchi support our hypothesis that abnormal development of bronchial cartilage might play an important role in the hypoplastic lung in CDH.
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Affiliation(s)
- So Tando
- Department of Pathology and Applied Neurobiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine (KPUM), Kyoto, Japan
| | - Kohei Sakai
- Department of Pediatric Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine (KPUM), Kyoto, Japan
| | - Shohei Takayama
- Department of Pediatric Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine (KPUM), Kyoto, Japan
| | - Kenji Fukunaga
- Department of Pediatric Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine (KPUM), Kyoto, Japan
| | - Mayumi Higashi
- Department of Pediatric Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine (KPUM), Kyoto, Japan
| | - Shigehisa Fumino
- Department of Pediatric Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine (KPUM), Kyoto, Japan
| | - Shigeyoshi Aoi
- Department of Pediatric Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine (KPUM), Kyoto, Japan
| | - Taizo Furukawa
- Department of Pediatric Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine (KPUM), Kyoto, Japan
| | - Tatsuro Tajiri
- Department of Pediatric Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine (KPUM), Kyoto, Japan
| | - Hiroshi Ogi
- Department of Pathology and Applied Neurobiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine (KPUM), Kyoto, Japan.,SCREEN Holdings Co., Ltd. (SCREEN), Kyoto, Japan
| | - Kyoko Itoh
- Department of Pathology and Applied Neurobiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine (KPUM), Kyoto, Japan
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8
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Mesenchyme-specific deletion of Tgf-β1 in the embryonic lung disrupts branching morphogenesis and induces lung hypoplasia. J Transl Med 2019; 99:1363-1375. [PMID: 31028279 PMCID: PMC7422700 DOI: 10.1038/s41374-019-0256-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 03/06/2019] [Accepted: 03/13/2019] [Indexed: 01/08/2023] Open
Abstract
Proper lung development depends on the precise temporal and spatial expression of several morphogenic factors, including Fgf10, Fgf9, Shh, Bmp4, and Tgf-β. Over- or under-expression of these molecules often leads to aberrant embryonic or postnatal lung development. Herein, we deleted the Tgf-β1 gene specifically within the lung embryonic mesenchymal compartment at specific gestational stages to determine the contribution of this cytokine to lung development. Mutant embryos developed severe lung hypoplasia and died at birth due to the inability to breathe. Despite the markedly reduced lung size, proliferation and differentiation of the lung epithelium was not affected by the lack of mesenchymal expression of the Tgf-β1 gene, while apoptosis was significantly increased in the mutant lung parenchyma. Lack of mesenchymal expression of the Tgf-β1 gene was also associated with reduced lung branching morphogenesis, with accompanying inhibition of the local FGF10 signaling pathway as well as abnormal development of the vascular system. To shed light on the mechanism of lung hypoplasia, we quantified the phosphorylation of 226 proteins in the mutant E12.5 lung compared with control. We identified five proteins, Hrs, Vav2, c-Kit, the regulatory subunit of Pi3k (P85), and Fgfr1, that were over- or under-phosphorylated in the mutant lung, suggesting that they could be indispensable effectors of the TGF-β signaling program during embryonic lung development. In conclusion, we have uncovered novel roles of the mesenchyme-specific Tgf-β1 ligand in embryonic mouse lung development and generated a mouse model that may prove helpful to identify some of the key pathogenic mechanisms underlying lung hypoplasia in humans.
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9
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Bordoni B, Simonelli M, Morabito B. The Other Side of the Fascia: The Smooth Muscle Part 1. Cureus 2019; 11:e4651. [PMID: 31312576 PMCID: PMC6624154 DOI: 10.7759/cureus.4651] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 05/13/2019] [Indexed: 02/06/2023] Open
Abstract
According to current scientific standards, the fascia is a connective tissue derived from two separate germ layers, the mesoderm (trunk and limbs, part of the neck) and the ectoderm (cervical tract and skull). The fascia has the property of maintaining the shape and function of its anatomical district, but it also can adapt to mechanical-metabolic stimuli. Smooth muscle and non-voluntary striated musculature originated from the mesoderm have never been properly considered as a type of fascia. They are some of the viscera present in the mediastinum, in the abdomen and in the pelvic floor. This text represents the first article in the international scientific field that discusses the inclusion of some viscera in the context of what is considered fascia, thanks to the efforts of our committee for the definition and nomenclature of the fascial tissue of the Foundation of Osteopathic Research and Clinical Endorsement (FORCE).
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Affiliation(s)
- Bruno Bordoni
- Cardiology, Foundation Don Carlo Gnocchi, Milan, ITA
| | | | - Bruno Morabito
- Osteopathy, School of Osteopathic Centre for Research and Studies, Milan, ITA
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Kishimoto K, Tamura M, Nishita M, Minami Y, Yamaoka A, Abe T, Shigeta M, Morimoto M. Synchronized mesenchymal cell polarization and differentiation shape the formation of the murine trachea and esophagus. Nat Commun 2018; 9:2816. [PMID: 30026494 PMCID: PMC6053463 DOI: 10.1038/s41467-018-05189-2] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 05/25/2018] [Indexed: 11/13/2022] Open
Abstract
Tube morphogenesis is essential for internal-organ development, yet the mechanisms regulating tube shape remain unknown. Here, we show that different mechanisms regulate the length and diameter of the murine trachea. First, we found that trachea development progresses via sequential elongation and expansion processes. This starts with a synchronized radial polarization of smooth muscle (SM) progenitor cells with inward Golgi-apparatus displacement regulates tube elongation, controlled by mesenchymal Wnt5a-Ror2 signaling. This radial polarization directs SM progenitor cell migration toward the epithelium, and the resulting subepithelial morphogenesis supports tube elongation to the anteroposterior axis. This radial polarization also regulates esophageal elongation. Subsequently, cartilage development helps expand the tube diameter, which drives epithelial-cell reshaping to determine the optimal lumen shape for efficient respiration. These findings suggest a strategy in which straight-organ tubulogenesis is driven by subepithelial cell polarization and ring cartilage development.
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Affiliation(s)
- Keishi Kishimoto
- Laboratory for Lung Development, RIKEN Center for Developmental Biology, Kobe, 650-0047, Japan
- Center for Biosystems Dynamics Research, Kobe, 650-0047, Japan
| | - Masaru Tamura
- RIKEN BioResource Center, Tsukuba, Ibaraki, 305-0074, Japan
| | - Michiru Nishita
- Division of Cell Physiology, Department of Physiology and Cell Biology, Graduate School of Medicine, Kobe University, Kobe, 650-0017, Japan
| | - Yasuhiro Minami
- Division of Cell Physiology, Department of Physiology and Cell Biology, Graduate School of Medicine, Kobe University, Kobe, 650-0017, Japan
| | - Akira Yamaoka
- Laboratory for Lung Development, RIKEN Center for Developmental Biology, Kobe, 650-0047, Japan
- Center for Biosystems Dynamics Research, Kobe, 650-0047, Japan
| | - Takaya Abe
- Center for Biosystems Dynamics Research, Kobe, 650-0047, Japan
- Laboratory for Animal Resource Development, RIKEN Center for Life Science Technologies and Center for Biosystems Dynamics Research, Kobe, 650-0047, Japan
- Laboratory for Genetic Engineering, RIKEN Center for Life Science Technologies and Center for Biosystems Dynamics Research, Kobe, 650-0047, Japan
| | - Mayo Shigeta
- Center for Biosystems Dynamics Research, Kobe, 650-0047, Japan
- Laboratory for Animal Resource Development, RIKEN Center for Life Science Technologies and Center for Biosystems Dynamics Research, Kobe, 650-0047, Japan
| | - Mitsuru Morimoto
- Laboratory for Lung Development, RIKEN Center for Developmental Biology, Kobe, 650-0047, Japan.
- Center for Biosystems Dynamics Research, Kobe, 650-0047, Japan.
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11
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Fernandes-Silva H, Vaz-Cunha P, Barbosa VB, Silva-Gonçalves C, Correia-Pinto J, Moura RS. Retinoic acid regulates avian lung branching through a molecular network. Cell Mol Life Sci 2017; 74:4599-4619. [PMID: 28735443 PMCID: PMC11107646 DOI: 10.1007/s00018-017-2600-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 07/04/2017] [Accepted: 07/18/2017] [Indexed: 12/14/2022]
Abstract
Retinoic acid (RA) is of major importance during vertebrate embryonic development and its levels need to be strictly regulated otherwise congenital malformations will develop. Through the action of specific nuclear receptors, named RAR/RXR, RA regulates the expression of genes that eventually influence proliferation and tissue patterning. RA has been described as crucial for different stages of mammalian lung morphogenesis, and as part of a complex molecular network that contributes to precise organogenesis; nonetheless, nothing is known about its role in avian lung development. The current report characterizes, for the first time, the expression pattern of RA signaling members (stra6, raldh2, raldh3, cyp26a1, rarα, and rarβ) and potential RA downstream targets (sox2, sox9, meis1, meis2, tgfβ2, and id2) by in situ hybridization. In the attempt of unveiling the role of RA in chick lung branching, in vitro lung explants were performed. Supplementation studies revealed that RA stimulates lung branching in a dose-dependent manner. Moreover, the expression levels of cyp26a1, sox2, sox9, rarβ, meis2, hoxb5, tgfβ2, id2, fgf10, fgfr2, and shh were evaluated after RA treatment to disclose a putative molecular network underlying RA effect. In situ hybridization analysis showed that RA is able to alter cyp26a1, sox9, tgfβ2, and id2 spatial distribution; to increase rarβ, meis2, and hoxb5 expression levels; and has a very modest effect on sox2, fgf10, fgfr2, and shh expression levels. Overall, these findings support a role for RA in the proximal-distal patterning and branching morphogenesis of the avian lung and reveal intricate molecular interactions that ultimately orchestrate branching morphogenesis.
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Affiliation(s)
- Hugo Fernandes-Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, 4710-057, Braga/Guimarães, Portugal
| | - Patrícia Vaz-Cunha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, 4710-057, Braga/Guimarães, Portugal
| | - Violina Baranauskaite Barbosa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, 4710-057, Braga/Guimarães, Portugal
| | - Carla Silva-Gonçalves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, 4710-057, Braga/Guimarães, Portugal
| | - Jorge Correia-Pinto
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057, Braga, Portugal
- ICVS/3B's, PT Government Associate Laboratory, 4710-057, Braga/Guimarães, Portugal
- Department of Pediatric Surgery, Hospital de Braga, 4710-243, Braga, Portugal
| | - Rute Silva Moura
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057, Braga, Portugal.
- ICVS/3B's, PT Government Associate Laboratory, 4710-057, Braga/Guimarães, Portugal.
- Biology Department, School of Sciences, University of Minho, 4710-057, Braga, Portugal.
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