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Kawahata T, Tanaka K, Oyama K, Ueda J, Okamoto K, Makino Y. HIF3A gene disruption causes abnormal alveoli structure and early neonatal death. PLoS One 2024; 19:e0300751. [PMID: 38717999 PMCID: PMC11078382 DOI: 10.1371/journal.pone.0300751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 03/04/2024] [Indexed: 05/12/2024] Open
Abstract
Transcriptional response to changes in oxygen concentration is mainly controlled by hypoxia-inducible transcription factors (HIFs). Besides regulation of hypoxia-responsible gene expression, HIF-3α has recently been shown to be involved in lung development and in the metabolic process of fat tissue. However, the precise mechanism for such properties of HIF-3α is still largely unknown. To this end, we generated HIF3A gene-disrupted mice by means of genome editing technology to explore the pleiotropic role of HIF-3α in development and physiology. We obtained adult mice carrying homozygous HIF3A gene mutations with comparable body weight and height to wild-type mice. However, the number of litters and ratio of homozygous mutation carriers born from the mating between homozygous mutant mice was lower than expected due to sporadic deaths on postnatal day 1. HIF3A gene-disrupted mice exhibited abnormal configuration of the lung such as a reduced number of alveoli and thickened alveolar walls. Transcriptome analysis showed, as well as genes associated with lung development, an upregulation of stearoyl-Coenzyme A desaturase 1, a pivotal enzyme for fatty acid metabolism. Analysis of fatty acid composition in the lung employing gas chromatography indicated an elevation in palmitoleic acid and a reduction in oleic acid, suggesting an imbalance in distribution of fatty acid, a constituent of lung surfactant. Accordingly, administration of glucocorticoid injections during pregnancy resulted in a restoration of normal alveolar counts and a decrease in neonatal mortality. In conclusion, these observations provide novel insights into a pivotal role of HIF-3α in the preservation of critically important structure and function of alveoli beyond the regulation of hypoxia-mediated gene expression.
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Affiliation(s)
- Tomoki Kawahata
- Division of Endocrinology, Metabolism, and Rheumatology, Department of Internal Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Kitaru Tanaka
- Division of Endocrinology, Metabolism, and Rheumatology, Department of Internal Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Kyohei Oyama
- Department of Cardiac Surgery, Asahikawa Medical University, Asahikawa, Japan
| | - Jun Ueda
- Department of Advanced Medical Science, Asahikawa Medical University, Asahikawa, Japan
| | - Kensaku Okamoto
- Division of Endocrinology, Metabolism, and Rheumatology, Department of Internal Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Yuichi Makino
- Center for Integrated Medical Education and Regional Symbiosis, Asahikawa Medical University, Asahikawa, Japan
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2
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Ojha M, Smith NJ, Devine AJ, Joshi R, Goodman EM, Fan Q, Schuman R, Porollo A, Wells JM, Tiwary E, Batie MR, Gray J, Deshmukh H, Borchers MT, Ammerman SA, Varisco BM. Anti-CELA1 antibody KF4 prevents emphysema by inhibiting stretch-mediated remodeling. JCI Insight 2024; 9:e169189. [PMID: 38193533 PMCID: PMC10906462 DOI: 10.1172/jci.insight.169189] [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: 01/27/2023] [Accepted: 11/17/2023] [Indexed: 01/10/2024] Open
Abstract
There are no therapies to prevent emphysema progression. Chymotrypsin-like elastase 1 (CELA1) is a serine protease that binds and cleaves lung elastin in a stretch-dependent manner and is required for emphysema in a murine antisense oligonucleotide model of α-1 antitrypsin (AAT) deficiency. This study tested whether CELA1 is important in strain-mediated lung matrix destruction in non-AAT-deficient emphysema and the efficacy of CELA1 neutralization. Airspace simplification was quantified after administration of tracheal porcine pancreatic elastase (PPE), after 8 months of cigarette smoke (CS) exposure, and in aging. In all 3 models, Cela1-/- mice had less emphysema and preserved lung elastin despite increased lung immune cells. A CELA1-neutralizing antibody was developed (KF4), and it inhibited stretch-inducible lung elastase in ex vivo mouse and human lung and immunoprecipitated CELA1 from human lung. In mice, systemically administered KF4 penetrated lung tissue in a dose-dependent manner and 5 mg/kg weekly prevented emphysema in the PPE model with both pre- and postinjury initiation and in the CS model. KF4 did not increase lung immune cells. CELA1-mediated lung matrix remodeling in response to strain is an important contributor to postnatal airspace simplification, and we believe that KF4 could be developed as a lung matrix-stabilizing therapy in emphysema.
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Affiliation(s)
- Mohit Ojha
- Lincoln Medical Center and Mental Health Center, New York, New York, USA
| | - Noah J. Smith
- College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | - Andrew J. Devine
- Heritage College of Osteopathic Medicine, Ohio University, Athens Ohio, USA
| | - Rashika Joshi
- Critical Care Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Emily M. Goodman
- College of Medicine, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Qiang Fan
- Critical Care Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Richard Schuman
- Antibody and Immunoassay Consultants, Rockville, Maryland, USA
| | - Aleksey Porollo
- College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
- Center for Autoimmune Genomics and Etiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - J. Michael Wells
- University of Alabama at Birmingham School of Medicine, Birmingham, Alabama, USA
- UAB Lung Health Center, Birmingham, Alabama, USA
| | - Ekta Tiwary
- University of Alabama at Birmingham School of Medicine, Birmingham, Alabama, USA
- UAB Lung Health Center, Birmingham, Alabama, USA
| | | | - Jerilyn Gray
- Perinatal Institute, Center for Perinatal Immunity, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Hitesh Deshmukh
- College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
- Perinatal Institute, Center for Perinatal Immunity, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
| | - Michael T. Borchers
- College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
- Division of Pulmonary and Critical Care Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | | | - Brian M. Varisco
- College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
- Critical Care Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio, USA
- College of Medicine, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
- Arkansas Children’s Research Institute, Little Rock, Arkansas, USA
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3
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Joshi I, Devine AJ, Joshi R, Smith NJ, Varisco BM. A titratable murine model of progressive emphysema using tracheal porcine pancreatic elastase. Sci Rep 2023; 13:15259. [PMID: 37709810 PMCID: PMC10502133 DOI: 10.1038/s41598-023-41527-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 08/28/2023] [Indexed: 09/16/2023] Open
Abstract
Progressive emphysema often leads to end-stage lung disease. Most mouse models of emphysema are typically modest (i.e. cigarette smoke exposure), and changes over time are difficult to quantify. The tracheal porcine pancreatic elastase model (PPE) produces severe injury, but the literature is conflicted as to whether emphysema improves, is stable, or progresses over time. We hypothesized a threshold of injury below which repair would occur and above which emphysema would be stable or progress. We treated 8-week-old C57BL6 mixed sex mice with 0, 0.5, 2, or 4 activity units of PPE in 100 µL PBS and performed lung stereology at 21 and 84 days. There were no significant differences in weight gain or mouse health. Despite minimal emphysema at 21-days in the 0.5 units group (2.8 µm increased mean linear intercept, MLI), MLI increased by 4.6 µm between days 21 and 84 (p = 0.0007). In addition to larger MLI at 21 days in 2- and 4-unit groups, MLI increases from day 21 to 84 were 17.2 and 34 µm respectively (p = 0.002 and p = 0.0001). Total lung volume increased, and alveolar surface area decreased with time and injury severity. Contrary to our hypothesis, we found no evidence of alveolar repair over time. Airspace destruction was both progressive and accelerative. Future mechanistic studies in lung immunity, mechano-biology, senescence, and cell-specific changes may lead to novel therapies to slow or halt progressive emphysema in humans.
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Affiliation(s)
- Imani Joshi
- College of Arts and Sciences, Xavier University, Cincinnati, OH, USA
| | - Andrew J Devine
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Rashika Joshi
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Noah J Smith
- University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Brian M Varisco
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
- University of Cincinnati College of Medicine, Cincinnati, OH, USA.
- University of Arkansas for Medical Sciences, 1 Children's Way Slot 663, Little Rock, AR, 72202, USA.
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4
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He Q, Lin J, Zhou F, Cai D, Yan Y, Shan Y, Zhang S, Li T, Yao X, Ouyang H. “Musical dish” efficiently induces osteogenic differentiation of mesenchymal stem cells through music derived micro‐stretch with variable frequency. Bioeng Transl Med 2022; 7:e10291. [PMID: 35600662 PMCID: PMC9115692 DOI: 10.1002/btm2.10291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 12/01/2021] [Accepted: 12/30/2021] [Indexed: 11/16/2022] Open
Abstract
Nonuniform microstretching (NUMS) naturally occurs in real bone tissues in vivo, but its profound effects have not been identified yet. In order to explore the biological effects of NUMS and static stretch (uniform stretch [US]) on cells, a new “musical dish” device was developed. Musical signal was used to provide NUMS to cells. More stress fibers, arranging along the long axis of cells, were formed throughout the cells under NUMS, compared with US and untreated control group, although cell morphology did not show any alteration. Whole transcriptome sequencing revealed enhanced osteogenic differentiation of cells after NUMS treatment. Cells in the NUMS group showed a higher expression of bone‐related genes, while genes related to stemness and other lineages were down‐regulated. Our results give insights into the biological effects of NUMS and US on stem cell osteogenic differentiation, suggesting beneficial effects of micromechanical stimulus for osteogenesis. The newly developed device provides a basis for the development of NUMS derived rehabilitation technology to promote bone healing.
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Affiliation(s)
- Qiulin He
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China
- Zhejiang University‐University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine Hangzhou China
| | - Junxin Lin
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China
- Zhejiang University‐University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine Hangzhou China
| | - Fanghao Zhou
- Center for X‐Mechanics, Department of Engineering Mechanics Zhejiang University Hangzhou China
| | - Dandan Cai
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China
- Zhejiang University‐University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine Hangzhou China
| | - Yiyang Yan
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China
- Zhejiang University‐University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine Hangzhou China
| | - Yejie Shan
- Center for X‐Mechanics, Department of Engineering Mechanics Zhejiang University Hangzhou China
| | - Shufang Zhang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China
- Zhejiang University‐University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine Hangzhou China
- China Orthopedic Regenerative Medicine Group (CORMed) Hangzhou China
| | - Tiefeng Li
- Center for X‐Mechanics, Department of Engineering Mechanics Zhejiang University Hangzhou China
| | - Xudong Yao
- The Fourth Affiliated Hospital, Zhejiang University School of Medicine Yiwu China
| | - Hongwei Ouyang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, and Department of Orthopedic Surgery of the Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou China
- Department of Sports Medicine Zhejiang University School of Medicine Hangzhou China
- Zhejiang University‐University of Edinburgh Institute, Zhejiang University School of Medicine, and Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine Hangzhou China
- China Orthopedic Regenerative Medicine Group (CORMed) Hangzhou China
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5
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Serapiglia V, Stephens CA, Joshi R, Aydin E, Oria M, Marotta M, Peiro JL, Varisco BM. Fetal Tracheal Occlusion Increases Lung Basal Cells via Increased Yap Signaling. Front Pediatr 2021; 9:780166. [PMID: 35280447 PMCID: PMC8904268 DOI: 10.3389/fped.2021.780166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 12/15/2021] [Indexed: 12/03/2022] Open
Abstract
Fetal endoscopic tracheal occlusion (FETO) is an emerging surgical therapy for congenital diaphragmatic hernia (CDH). Ovine and rabbit data suggested altered lung epithelial cell populations after tracheal occlusion (TO) with transcriptomic signatures implicating basal cells. To test this hypothesis, we deconvolved mRNA sequencing (mRNA-seq) data and used quantitative image analysis in fetal rabbit lung TO, which had increased basal cells and reduced ciliated cells after TO. In a fetal mouse TO model, flow cytometry showed increased basal cells, and immunohistochemistry demonstrated basal cell extension to subpleural airways. Nuclear Yap, a known regulator of basal cell fate, was increased in TO lung, and Yap ablation on the lung epithelium abrogated TO-mediated basal cell expansion. mRNA-seq of TO lung showed increased activity of downstream Yap genes. Human lung specimens with congenital and fetal tracheal occlusion had clusters of subpleural basal cells that were not present in the control. TO increases lung epithelial cell nuclear Yap, leading to basal cell expansion.
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Affiliation(s)
- Vincent Serapiglia
- School of Medicine, Northeast Ohio College of Medicine, Northeast Ohio Medical University, Rootstown Township, OH, United States
| | - Chad A Stephens
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, United States
| | - Rashika Joshi
- Division of Critical Care Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Emrah Aydin
- Department of Pediatric Surgery, Tekirdag Namik Kemal University School of Medicine, Tekirdag, Turkey.,Center for Fetal and Placental Research, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, OH, United States
| | - Marc Oria
- Center for Fetal and Placental Research, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, OH, United States.,Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH, United States
| | - Mario Marotta
- Bioengineering, Cell Therapy and Surgery in Congenital Malformations Laboratory, Vall d'Hebron Hospital Research Institute, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Jose L Peiro
- Center for Fetal and Placental Research, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, OH, United States.,Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH, United States
| | - Brian M Varisco
- Division of Critical Care Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States.,Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH, United States
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6
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Joshi R, Heinz A, Fan Q, Guo S, Monia B, Schmelzer CEH, Weiss AS, Batie M, Parameshwaran H, Varisco BM. Role for Cela1 in Postnatal Lung Remodeling and Alpha-1 Antitrypsin-Deficient Emphysema. Am J Respir Cell Mol Biol 2019; 59:167-178. [PMID: 29420065 DOI: 10.1165/rcmb.2017-0361oc] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Alpha-1 antitrypsin (AAT) deficiency-related emphysema is the fourth leading indication for lung transplant. Chymotrypsin-like elastase 1 (Cela1) is a digestive protease that is expressed during lung development in association with regions of elastin remodeling, exhibits stretch-dependent expression during lung regeneration, and binds lung elastin in a stretch-dependent manner. AAT covalently neutralizes Cela1 in vitro. We sought to determine the role of Cela1 in postnatal lung physiology, whether it interacted with AAT in vivo, and to detect any effects it may have in the context of AAT deficiency. The lungs of Cela1-/- mice had aberrant lung elastin structure and higher elastance as assessed with the flexiVent system. On the basis of in situ zymography with ex vivo lung stretch, Cela1 was solely responsible for stretch-inducible lung elastase activity. By mass spectrometry, Cela1 degraded mature elastin similarly to pancreatic elastase. Cela1 promoter and protein sequences were phylogenetically distinct in the placental mammal lineage, suggesting an adaptive role for lung-expressed Cela1 in this clade. A 6-week antisense oligonucleotide mouse model of AAT deficiency resulted in emphysema with increased Cela1 mRNA and reduction of approximately 70 kD Cela1, consistent with covalent binding of Cela1 by AAT. Cela1-/- mice were completely protected against emphysema in this model. Cela1 was increased in human AAT-deficient emphysema. Cela1 is important in physiologic and pathologic stretch-dependent remodeling processes in the postnatal lung. AAT is an important regulator of this process. Our findings provide proof of concept for the development of anti-Cela1 therapies to prevent and/or treat AAT-deficient emphysema.
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Affiliation(s)
| | - Andrea Heinz
- 2 Martin Luther University, Halle-Wittenberg, Germany.,3 University of Copenhagen, Copenhagen, Denmark
| | - Qiang Fan
- 1 Division of Critical Care Medicine and
| | - Shuling Guo
- 4 Ionis Pharmaceuticals, La Jolla, California
| | - Brett Monia
- 4 Ionis Pharmaceuticals, La Jolla, California
| | - Christian E H Schmelzer
- 2 Martin Luther University, Halle-Wittenberg, Germany.,5 Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Halle-Wittenberg, Germany
| | - Anthony S Weiss
- 6 Charles Perkins Centre.,7 Life and Environmental Sciences, and.,8 Bosch Institute, University of Sydney, Sydney, Australia
| | - Matthew Batie
- 9 Division of Clinical Engineering, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | | | - Brian M Varisco
- 1 Division of Critical Care Medicine and.,11 Department of Pediatrics, University of Cincinnati, Cincinnati, Ohio
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7
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Abstract
Bronchopulmonary dysplasia (BPD) continues to be one of the most common complications of preterm birth and is characterized histopathologically by impaired lung alveolarization. Extremely preterm born infants remain at high risk for the development of BPD, highlighting a pressing need for continued efforts to understand the pathomechanisms at play in affected infants. This brief review summarizes recent progress in our understanding of the how the development of the newborn lung is stunted, highlighting recent reports on roles for growth factor signaling, oxidative stress, inflammation, the extracellular matrix and proteolysis, non-coding RNA, and fibroblast and epithelial cell plasticity. Additionally, some concerns about modeling BPD in experimental animals are reviewed, as are new developments in the in vitro modeling of pathophysiological processes relevant to impaired lung alveolarization in BPD.
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Affiliation(s)
- Rory E Morty
- Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany; Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany.
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8
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Shender VO, Arapidi GP, Pavlyukov MS, Shnaider PV, Anufrieva KS, Stepanov GA, Govorun VM. The Role of Intercellular Communication in Cancer Progression. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2018. [DOI: 10.1134/s1068162018040179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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9
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Anufrieva KS, Shender VО, Arapidi GP, Pavlyukov MS, Shakhparonov MI, Shnaider PV, Butenko IO, Lagarkova MA, Govorun VM. Therapy-induced stress response is associated with downregulation of pre-mRNA splicing in cancer cells. Genome Med 2018; 10:49. [PMID: 29950180 PMCID: PMC6020472 DOI: 10.1186/s13073-018-0557-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Accepted: 06/07/2018] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Abnormal pre-mRNA splicing regulation is common in cancer, but the effects of chemotherapy on this process remain unclear. METHODS To evaluate the effect of chemotherapy on slicing regulation, we performed meta-analyses of previously published transcriptomic, proteomic, phosphoproteomic, and secretome datasets. Our findings were verified by LC-MS/MS, western blotting, immunofluorescence, and FACS analyses of multiple cancer cell lines treated with cisplatin and pladienolide B. RESULTS Our results revealed that different types of chemotherapy lead to similar changes in alternative splicing by inducing intron retention in multiple genes. To determine the mechanism underlying this effect, we analyzed gene expression in 101 cell lines affected by ɣ-irradiation, hypoxia, and 10 various chemotherapeutic drugs. Strikingly, оnly genes involved in the cell cycle and pre-mRNA splicing regulation were changed in a similar manner in all 335 tested samples regardless of stress stimuli. We revealed significant downregulation of gene expression levels in these two pathways, which could be explained by the observed decrease in splicing efficiency and global intron retention. We showed that the levels of active spliceosomal proteins might be further post-translationally decreased by phosphorylation and export into the extracellular space. To further explore these bioinformatics findings, we performed proteomic analysis of cisplatin-treated ovarian cancer cells. Finally, we demonstrated that the splicing inhibitor pladienolide B impairs the cellular response to DNA damage and significantly increases the sensitivity of cancer cells to chemotherapy. CONCLUSIONS Decreased splicing efficiency and global intron retention is a novel stress response mechanism that may promote survival of malignant cells following therapy. We found that this mechanism can be inhibited by pladienolide B, which significantly increases the sensitivity of cancer cells to cisplatin which makes it a good candidate drug for improving the efficiency of cancer therapy.
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Affiliation(s)
- Ksenia S Anufrieva
- Laboratory of Proteomics, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, 117997, Russia.
- Laboratory of Cell Biology, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, 119435, Russia.
- Systems Biology Lab, Moscow Institute of Physics and Technology (State University), Moscow, Region, 141701, Russia.
| | - Victoria О Shender
- Laboratory of Proteomics, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, 117997, Russia.
- Laboratory of Cell Biology, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, 119435, Russia.
| | - Georgij P Arapidi
- Laboratory of Proteomics, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, 117997, Russia
- Laboratory of Cell Biology, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, 119435, Russia
- Systems Biology Lab, Moscow Institute of Physics and Technology (State University), Moscow, Region, 141701, Russia
| | - Marat S Pavlyukov
- Laboratory of Membrane Bioenergetics, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, 117997, Russia
| | - Michail I Shakhparonov
- Laboratory of Membrane Bioenergetics, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, 117997, Russia
| | - Polina V Shnaider
- Laboratory of Proteomics, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, 117997, Russia
- Laboratory of Cell Biology, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, 119435, Russia
| | - Ivan O Butenko
- Laboratory of Proteomic Analysis, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, 119435, Russia
| | - Maria A Lagarkova
- Laboratory of Cell Biology, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, 119435, Russia
| | - Vadim M Govorun
- Laboratory of Proteomics, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, 117997, Russia
- Laboratory of Proteomic Analysis, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, 119435, Russia
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10
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Surate Solaligue DE, Rodríguez-Castillo JA, Ahlbrecht K, Morty RE. Recent advances in our understanding of the mechanisms of late lung development and bronchopulmonary dysplasia. Am J Physiol Lung Cell Mol Physiol 2017; 313:L1101-L1153. [PMID: 28971976 DOI: 10.1152/ajplung.00343.2017] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 09/21/2017] [Accepted: 09/23/2017] [Indexed: 02/08/2023] Open
Abstract
The objective of lung development is to generate an organ of gas exchange that provides both a thin gas diffusion barrier and a large gas diffusion surface area, which concomitantly generates a steep gas diffusion concentration gradient. As such, the lung is perfectly structured to undertake the function of gas exchange: a large number of small alveoli provide extensive surface area within the limited volume of the lung, and a delicate alveolo-capillary barrier brings circulating blood into close proximity to the inspired air. Efficient movement of inspired air and circulating blood through the conducting airways and conducting vessels, respectively, generates steep oxygen and carbon dioxide concentration gradients across the alveolo-capillary barrier, providing ideal conditions for effective diffusion of both gases during breathing. The development of the gas exchange apparatus of the lung occurs during the second phase of lung development-namely, late lung development-which includes the canalicular, saccular, and alveolar stages of lung development. It is during these stages of lung development that preterm-born infants are delivered, when the lung is not yet competent for effective gas exchange. These infants may develop bronchopulmonary dysplasia (BPD), a syndrome complicated by disturbances to the development of the alveoli and the pulmonary vasculature. It is the objective of this review to update the reader about recent developments that further our understanding of the mechanisms of lung alveolarization and vascularization and the pathogenesis of BPD and other neonatal lung diseases that feature lung hypoplasia.
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Affiliation(s)
- David E Surate Solaligue
- Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany; and.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, German Center for Lung Research, Giessen, Germany
| | - José Alberto Rodríguez-Castillo
- Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany; and.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, German Center for Lung Research, Giessen, Germany
| | - Katrin Ahlbrecht
- Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany; and.,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, German Center for Lung Research, Giessen, Germany
| | - Rory E Morty
- Department of Lung Development and Remodelling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany; and .,Department of Internal Medicine (Pulmonology), University of Giessen and Marburg Lung Center, German Center for Lung Research, Giessen, Germany
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11
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McGowan S. Understanding the developmental pathways pulmonary fibroblasts may follow during alveolar regeneration. Cell Tissue Res 2017; 367:707-719. [PMID: 28062913 DOI: 10.1007/s00441-016-2542-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 11/19/2016] [Indexed: 10/20/2022]
Abstract
Although pulmonary alveolar interstitial fibroblasts are less specialized than their epithelial and endothelial neighbors, they play essential roles during development and in response to lung injury. At birth, they must adapt to the sudden mechanical changes imposed by the onset of respiration and to a higher ambient oxygen concentration. In diseases such as bronchopulmonary dysplasia and interstitial fibrosis, their adaptive responses are overwhelmed leading to compromised gas-exchange function. Thus, although fibroblasts do not directly participate in gas-exchange, they are essential for creating and maintaining an optimal environment at the alveolar epithelial-endothelial interface. This review summarizes new information and concepts about the ontogeny differentiation, and function of alveolar fibroblasts. Alveolar development will be emphasized, because the development of strategies to evoke alveolar repair and regeneration hinges on thoroughly understanding the way that resident fibroblasts populate specific locations in which extracellular matrix must be produced and remodeled. Other recent reviews have described the disruption that diseases cause to the fibroblast niche and so my objective is to illustrate how the unique developmental origins and differentiation pathways could be harnessed favorably to augment certain fibroblast subpopulations and to optimize the conditions for alveolar regeneration.
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Affiliation(s)
- Stephen McGowan
- Department of Veterans Affairs Research Service and Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA. .,Division of Pulmonary, Critical Care, and Occupational Medicine, C33B GH, Department of Internal Medicine, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA 52242, USA.
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