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Wang J, Peng X, Yuan N, Wang B, Chen S, Wang B, Xie L. Interplay between pulmonary epithelial stem cells and innate immune cells contribute to the repair and regeneration of ALI/ARDS. Transl Res 2024; 272:111-125. [PMID: 38897427 DOI: 10.1016/j.trsl.2024.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024]
Abstract
Mammalian lung is the important organ for ventilation and exchange of air and blood. Fresh air and venous blood are constantly delivered through the airway and vascular tree to the alveolus. Based on this, the airways and alveolis are persistently exposed to the external environment and are easily suffered from toxins, irritants and pathogens. For example, acute lung injury/acute respiratory distress syndrome (ALI/ARDS) is a common cause of respiratory failure in critical patients, whose typical pathological characters are diffuse epithelial and endothelial damage resulting in excessive accumulation of inflammatory fluid in the alveolar cavity. The supportive treatment is the main current treatment for ALI/ARDS with the lack of targeted effective treatment strategies. However, ALI/ARDS needs more targeted treatment measures. Therefore, it is extremely urgent to understand the cellular and molecular mechanisms that maintain alveolar epithelial barrier and airway integrity. Previous researches have shown that the lung epithelial cells with tissue stem cell function have the ability to repair and regenerate after injury. Also, it is able to regulate the phenotype and function of innate immune cells involving in regeneration of tissue repair. Meanwhile, we emphasize that interaction between the lung epithelial cells and innate immune cells is more supportive to repair and regenerate in the lung epithelium following acute lung injury. We reviewed the recent advances in injury and repair of lung epithelial stem cells and innate immune cells in ALI/ARDS, concentrating on alveolar type 2 cells and alveolar macrophages and their contribution to post-injury repair behavior of ALI/ARDS through the latest potential molecular communication mechanisms. This will help to develop new research strategies and therapeutic targets for ALI/ARDS.
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Affiliation(s)
- Jiang Wang
- College of Pulmonary & Critical Care Medicine, the Eighth Medical Center of Chinese PLA General Hospital, Beijing 100091, China; Medical School of Chinese PLA, Beijing 100853, China
| | - Xinyue Peng
- Fu Xing Hospital, Capital Medical University, Beijing 100038, China
| | - Nan Yuan
- Department of Pulmonary & Critical Care Medicine, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Bin Wang
- Department of Thoracic Surgery, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Siyu Chen
- Department of Thoracic Surgery, the Sixth Medical Center of Chinese PLA General Hospital, Beijing 100048, China
| | - Bo Wang
- Department of Thoracic Surgery, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China.
| | - Lixin Xie
- College of Pulmonary & Critical Care Medicine, the Eighth Medical Center of Chinese PLA General Hospital, Beijing 100091, China; Medical School of Chinese PLA, Beijing 100853, China.
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Huang X, Zhang X, Machireddy N, Evans CE, Trewartha SD, Hu G, Fang Y, Mutlu GM, Wu D, Zhao YY. Endothelial FoxM1 reactivates aging-impaired endothelial regeneration for vascular repair and resolution of inflammatory lung injury. Sci Transl Med 2023; 15:eabm5755. [PMID: 37585502 PMCID: PMC10894510 DOI: 10.1126/scitranslmed.abm5755] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 07/28/2023] [Indexed: 08/18/2023]
Abstract
Aging is a major risk factor of high incidence and increased mortality of acute respiratory distress syndrome (ARDS). Here, we demonstrated that persistent lung injury and high mortality in aged mice after sepsis challenge were attributable to impaired endothelial regeneration and vascular repair. Genetic lineage tracing study showed that endothelial regeneration after sepsis-induced vascular injury was mediated by lung resident endothelial proliferation in young adult mice, whereas this intrinsic regenerative program was impaired in aged mice. Expression of forkhead box M1 (FoxM1), an important mediator of endothelial regeneration in young mice, was not induced in lungs of aged mice. Transgenic FOXM1 expression or in vivo endothelium-targeted nanoparticle delivery of the FOXM1 gene driven by an endothelial cell (EC)-specific promoter reactivated endothelial regeneration, normalized vascular repair and resolution of inflammation, and promoted survival in aged mice after sepsis challenge. In addition, treatment with the FDA-approved DNA demethylating agent decitabine was sufficient to reactivate FoxM1-dependent endothelial regeneration in aged mice, reverse aging-impaired resolution of inflammatory injury, and promote survival. Mechanistically, aging-induced Foxm1 promoter hypermethylation in mice, which could be inhibited by decitabine treatment, inhibited Foxm1 induction after sepsis challenge. In COVID-19 lung autopsy samples, FOXM1 was not induced in vascular ECs of elderly patients in their 80s, in contrast with middle-aged patients (aged 50 to 60 years). Thus, reactivation of FoxM1-mediated endothelial regeneration and vascular repair may represent a potential therapy for elderly patients with ARDS.
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Affiliation(s)
- Xiaojia Huang
- Program for Lung and Vascular Biology and Section for Injury Repair and Regeneration Research, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL60611, USA
- Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine. Chicago, IL60611, USA
| | - Xianming Zhang
- Program for Lung and Vascular Biology and Section for Injury Repair and Regeneration Research, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL60611, USA
- Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine. Chicago, IL60611, USA
| | - Narsa Machireddy
- Program for Lung and Vascular Biology and Section for Injury Repair and Regeneration Research, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL60611, USA
- Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine. Chicago, IL60611, USA
| | - Colin E. Evans
- Program for Lung and Vascular Biology and Section for Injury Repair and Regeneration Research, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL60611, USA
- Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine. Chicago, IL60611, USA
| | - Shawn D. Trewartha
- Program for Lung and Vascular Biology and Section for Injury Repair and Regeneration Research, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL60611, USA
- Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine. Chicago, IL60611, USA
| | - Guochang Hu
- Departments of Anesthesiology and Pharmacology, University of Illinois College of Medicine, Chicago, IL60607, USA
| | - Yun Fang
- Section of Pulmonary and Critical Care Medicine, Department of Medicine, University of Chicago, Chicago, IL60637, USA
| | - Gökhan M. Mutlu
- Section of Pulmonary and Critical Care Medicine, Department of Medicine, University of Chicago, Chicago, IL60637, USA
| | - David Wu
- Section of Pulmonary and Critical Care Medicine, Department of Medicine, University of Chicago, Chicago, IL60637, USA
| | - You-Yang Zhao
- Program for Lung and Vascular Biology and Section for Injury Repair and Regeneration Research, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL60611, USA
- Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine. Chicago, IL60611, USA
- Department of Pharmacology
- Department of Medicine, Division of Pulmonary and Critical Care Medicine
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University Feinberg School of Medicine. Chicago, IL60611, USA
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Arolkar G, Kumar SK, Wang H, Gonzalez KM, Kumar S, Bishnoi B, Rios Coronado PE, Woo YJ, Red-Horse K, Das S. Dedifferentiation and Proliferation of Artery Endothelial Cells Drive Coronary Collateral Development in Mice. Arterioscler Thromb Vasc Biol 2023; 43:1455-1477. [PMID: 37345524 PMCID: PMC10364966 DOI: 10.1161/atvbaha.123.319319] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 06/08/2023] [Indexed: 06/23/2023]
Abstract
BACKGROUND Collateral arteries act as natural bypasses which reroute blood flow to ischemic regions and facilitate tissue regeneration. In an injured heart, neonatal artery endothelial cells orchestrate a systematic series of cellular events, which includes their outward migration, proliferation, and coalescence into fully functional collateral arteries. This process, called artery reassembly, aids complete cardiac regeneration in neonatal hearts but is absent in adults. The reason for this age-dependent disparity in artery cell response is completely unknown. In this study, we investigated if regenerative potential of coronary arteries is dictated by their ability to dedifferentiate. METHODS Single-cell RNA sequencing of coronary endothelial cells was performed to identify differences in molecular profiles of neonatal and adult endothelial cells in mice. Findings from this in silico analyses were confirmed with in vivo experiments using genetic lineage tracing, whole organ immunostaining, confocal imaging, and cardiac functional assays in mice. RESULTS Upon coronary occlusion, neonates showed a significant increase in actively cycling artery cells and expressed prominent dedifferentiation markers. Data from in silico pathway analyses and in vivo experiments suggested that upon myocardial infarction, cell cycle reentry of preexisting neonatal artery cells, the subsequent collateral artery formation, and recovery of cardiac function are dependent on arterial VegfR2 (vascular endothelial growth factor receptor-2). This subpopulation of dedifferentiated and proliferating artery cells was absent in nonregenerative postnatal day 7 or adult hearts. CONCLUSIONS These data indicate that adult artery endothelial cells fail to drive collateral artery development due to their limited ability to dedifferentiate and proliferate.
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Affiliation(s)
- Gauri Arolkar
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bengaluru, India (G.A., S.K.K., S.K., B.B., S.D.)
| | - Sneha K. Kumar
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bengaluru, India (G.A., S.K.K., S.K., B.B., S.D.)
| | - Hanjay Wang
- Department of Cardiothoracic Surgery (H.W., Y.J.W.), Stanford University School of Medicine, CA
| | - Karen M. Gonzalez
- Institute for Stem Cell Biology and Regenerative Medicine (K.M.G., K.R.-H.), Stanford University School of Medicine, CA
- Department of Biology (K.M.G., K.R.-H.), Stanford University, CA
| | - Suraj Kumar
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bengaluru, India (G.A., S.K.K., S.K., B.B., S.D.)
| | - Bhavnesh Bishnoi
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bengaluru, India (G.A., S.K.K., S.K., B.B., S.D.)
| | | | - Y. Joseph Woo
- Department of Cardiothoracic Surgery (H.W., Y.J.W.), Stanford University School of Medicine, CA
| | - Kristy Red-Horse
- Institute for Stem Cell Biology and Regenerative Medicine (K.M.G., K.R.-H.), Stanford University School of Medicine, CA
- Department of Biology (K.M.G., K.R.-H.), Stanford University, CA
- Howard Hughes Medical Institute, Chevy Chase, MD (K.R.-H.)
| | - Soumyashree Das
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bengaluru, India (G.A., S.K.K., S.K., B.B., S.D.)
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Godoy RS, Cober ND, Cook DP, McCourt E, Deng Y, Wang L, Schlosser K, Rowe K, Stewart DJ. Single-cell transcriptomic atlas of lung microvascular regeneration after targeted endothelial cell ablation. eLife 2023; 12:e80900. [PMID: 37078698 PMCID: PMC10181823 DOI: 10.7554/elife.80900] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 04/19/2023] [Indexed: 04/21/2023] Open
Abstract
We sought to define the mechanism underlying lung microvascular regeneration in a model of severe acute lung injury (ALI) induced by selective lung endothelial cell ablation. Intratracheal instillation of DT in transgenic mice expressing human diphtheria toxin (DT) receptor targeted to ECs resulted in ablation of >70% of lung ECs, producing severe ALI with near complete resolution by 7 days. Using single-cell RNA sequencing, eight distinct endothelial clusters were resolved, including alveolar aerocytes (aCap) ECs expressing apelin at baseline and general capillary (gCap) ECs expressing the apelin receptor. At 3 days post-injury, a novel gCap EC population emerged characterized by de novo expression of apelin, together with the stem cell marker, protein C receptor. These stem-like cells transitioned at 5 days to proliferative endothelial progenitor-like cells, expressing apelin receptor together with the pro-proliferative transcription factor, Foxm1, and were responsible for the rapid replenishment of all depleted EC populations by 7 days post-injury. Treatment with an apelin receptor antagonist prevented ALI resolution and resulted in excessive mortality, consistent with a central role for apelin signaling in EC regeneration and microvascular repair. The lung has a remarkable capacity for microvasculature EC regeneration which is orchestrated by newly emergent apelin-expressing gCap endothelial stem-like cells that give rise to highly proliferative, apelin receptor-positive endothelial progenitors responsible for the regeneration of the lung microvasculature.
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Affiliation(s)
- Rafael Soares Godoy
- Ottawa Hospital Research InstituteOttawaCanada
- Sinclair Centre for Regenerative MedicineOttawaCanada
| | - Nicholas D Cober
- Ottawa Hospital Research InstituteOttawaCanada
- Sinclair Centre for Regenerative MedicineOttawaCanada
- Department of Cellular and Molecular Medicine, University of OttawaOttawaCanada
| | - David P Cook
- Ottawa Hospital Research InstituteOttawaCanada
- Department of Cellular and Molecular Medicine, University of OttawaOttawaCanada
| | | | - Yupu Deng
- Ottawa Hospital Research InstituteOttawaCanada
- Sinclair Centre for Regenerative MedicineOttawaCanada
| | - Liyuan Wang
- Ottawa Hospital Research InstituteOttawaCanada
- Sinclair Centre for Regenerative MedicineOttawaCanada
- Department of Cellular and Molecular Medicine, University of OttawaOttawaCanada
| | - Kenny Schlosser
- Ottawa Hospital Research InstituteOttawaCanada
- Sinclair Centre for Regenerative MedicineOttawaCanada
| | - Katelynn Rowe
- Ottawa Hospital Research InstituteOttawaCanada
- Sinclair Centre for Regenerative MedicineOttawaCanada
| | - Duncan J Stewart
- Ottawa Hospital Research InstituteOttawaCanada
- Sinclair Centre for Regenerative MedicineOttawaCanada
- Department of Cellular and Molecular Medicine, University of OttawaOttawaCanada
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Luo Y, Ge S, Chen Q, Lin S, He W, Zeng M. Overexpression of FoxM1 optimizes the therapeutic effect of bone marrow mesenchymal stem cells on acute respiratory distress syndrome. Stem Cell Res Ther 2023; 14:27. [PMID: 36788588 PMCID: PMC9926819 DOI: 10.1186/s13287-023-03240-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 01/17/2023] [Indexed: 02/16/2023] Open
Abstract
BACKGROUND Injury of alveolar epithelial cells and capillary endothelial cells is crucial in the pathogenesis of acute lung injury/acute respiratory distress syndrome (ALI/ARDS). Mesenchymal stem cells (MSCs) are a promising cell source for ALI/ARDS treatment. Overexpression of Fork head box protein M1 (FoxM1) facilitates MSC differentiation into alveolar type II (AT II) cells in vitro. Moreover, FoxM1 has been shown to repair the endothelial barrier. Therefore, this study explored whether overexpression of FoxM1 promotes the therapeutic effect of bone marrow-derived MSCs (BMSCs) on ARDS by differentiation of BMSCs into AT II cells or a paracrine mechanism. METHODS A septic ALI model was established in mice by intraperitoneal administration of lipopolysaccharide. The protective effect of BMSCs-FoxM1 on ALI was explored by detecting pathological variations in the lung, total protein concentration in bronchoalveolar lavage fluid (BALF), wet/dry (W/D) lung weight ratio, oxidative stress levels, cytokine levels, and retention of BMSCs in the lung. In addition, we assessed whether FoxM1 overexpression promoted the therapeutic effect of BMSCs on ALI/ARDS by differentiating into AT II cells using SPC-/- mice. Furthermore, the protective effect of BMSCs-FoxM1 on lipopolysaccharide-induced endothelial cell (EC) injury was explored by detecting EC proliferation, apoptosis, scratch wounds, tube formation, permeability, and oxidative stress, and analyzing whether the Wnt/β-catenin pathway contributes to the regulatory mechanism in vitro using a pathway inhibitor. RESULTS Compared with BMSCs-Vector, treatment with BMSCs-FoxM1 significantly decreased the W/D lung weight ratio, total BALF protein level, lung injury score, oxidative stress, and cytokine levels. With the detected track of BMSCs-FoxM1, we observed a low residency rate and short duration of residency in the lung. Notably, SPC was not expressed in SPC-/- mice injected with BMSCs-FoxM1. Furthermore, BMSCs-FoxM1 enhanced EC proliferation, migration, and tube formation; inhibited EC apoptosis and inflammation; and maintained vascular integrity through activation of the Wnt/β-catenin pathway, which was partially reversed by XAV-939. CONCLUSION Overexpression of FoxM1 enhanced the therapeutic effect of BMSCs on ARDS, possibly through a paracrine mechanism rather than by promoting BMSC differentiation into AT II cells in vivo, and prevented LPS-induced EC barrier disruption partially through activating the Wnt/β-catenin signaling pathway in vitro.
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Affiliation(s)
- Yuling Luo
- grid.12981.330000 0001 2360 039XDepartment of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, No.58 Zhongshan Road 2, Guangzhou, 510080 Guangdong China
| | - Shanhui Ge
- grid.12981.330000 0001 2360 039XDepartment of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, No.58 Zhongshan Road 2, Guangzhou, 510080 Guangdong China
| | - Qingui Chen
- grid.12981.330000 0001 2360 039XDepartment of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, No.58 Zhongshan Road 2, Guangzhou, 510080 Guangdong China
| | - Shan Lin
- grid.12981.330000 0001 2360 039XDepartment of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, No.58 Zhongshan Road 2, Guangzhou, 510080 Guangdong China
| | - Wanmei He
- grid.12981.330000 0001 2360 039XDepartment of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, No.58 Zhongshan Road 2, Guangzhou, 510080 Guangdong China
| | - Mian Zeng
- Department of Medical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-Sen University, No.58 Zhongshan Road 2, Guangzhou, 510080, Guangdong, China.
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Overexpression of FoxM1 Enhanced the Protective Effect of Bone Marrow-Derived Mesenchymal Stem Cells on Lipopolysaccharide-Induced Acute Lung Injury through the Activation of Wnt/ β-Catenin Signaling. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2023; 2023:8324504. [PMID: 36820407 PMCID: PMC9938779 DOI: 10.1155/2023/8324504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/30/2022] [Accepted: 01/16/2023] [Indexed: 02/13/2023]
Abstract
Background Mesenchymal stem cell- (MSC-) based cell and gene therapies have made remarkable progress in alleviating acute lung injury/acute respiratory distress syndrome (ALI/ARDS). However, the benefits of Forkhead box protein M1 (FoxM1) gene-modified MSCs in the treatment of ALI have not been studied. Methods We evaluated the therapeutic effects of FoxM1-modified MSCs in ALI mice induced by lipopolysaccharide (LPS) by quantifying the survival rate, lung weight ratio (wet/dry), and contents of bronchoalveolar lavage fluid. In addition, microcomputed tomography, histopathology, Evans Blue assay, and quantification of apoptosis were performed. We also explored the underlying mechanism by assessing Wnt/β-catenin signaling following the treatment of mice with FoxM1-modified MSCs utilizing the Wnt/β-catenin inhibitor XAV-939. Results Compared with unmodified MSCs, transplantation of FoxM1-modified MSCs improved survival and vascular permeability; reduced total cell counts, leukocyte counts, total protein concentrations, and inflammatory cytokines in BALF; attenuated lung pathological impairments and fibrosis; and inhibited apoptosis in LPS-induced ALI/ARDS mice. Furthermore, FoxM1-modified MSCs maintained vascular integrity during ALI/ARDS by upregulating Wnt/β-catenin signaling, which was partly reversed via a pathway inhibitor. Conclusion Overexpression of FoxM1 optimizes the treatment action of MSCs on ALI/ARDS by inhibiting inflammation and apoptosis and restoring vascular integrity partially through Wnt/β-catenin signaling pathway stimulation.
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Transcriptome Analysis Reveals Vimentin-Induced Disruption of Cell-Cell Associations Augments Breast Cancer Cell Migration. Cells 2022; 11:cells11244035. [PMID: 36552797 PMCID: PMC9776984 DOI: 10.3390/cells11244035] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/03/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022] Open
Abstract
In advanced metastatic cancers with reduced patient survival and poor prognosis, expression of vimentin, a type III intermediate filament protein is frequently observed. Vimentin appears to suppress epithelial characteristics and augments cell migration but the molecular basis for these changes is not well understood. Here, we have ectopically expressed vimentin in MCF-7 and investigated its genomic and functional implications. Vimentin changed the cell shape by decreasing major axis, major axis angle and increased cell migration, without affecting proliferation. Vimentin downregulated major keratin genes KRT8, KRT18 and KRT19. Transcriptome-coupled GO and KEGG analyses revealed that vimentin-affected genes were linked to either cell-cell/cell-ECM or cell cycle/proliferation specific pathways. Using shRNA mediated knockdown of vimentin in two cell types; MCF-7FV (ectopically expressing) and MDA-MB-231 (endogenously expressing), we identified a vimentin-specific signature consisting of 13 protein encoding genes (CDH5, AXL, PTPRM, TGFBI, CDH10, NES, E2F1, FOXM1, CDC45, FSD1, BCL2, KIF26A and WISP2) and two long non-coding RNAs, LINC00052 and C15ORF9-AS1. CDH5, an endothelial cadherin, which mediates cell-cell junctions, was the most downregulated protein encoding gene. Interestingly, downregulation of CDH5 by shRNA significantly increased cell migration confirming our RNA-Seq data. Furthermore, presence of vimentin altered the lamin expression in MCF-7. Collectively, we demonstrate, for the first time, that vimentin in breast cancer cells could change nuclear architecture by affecting lamin expression, which downregulates genes maintaining cell-cell junctions resulting in increased cell migration.
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Chen Y, Ding BS. Comprehensive Review of the Vascular Niche in Regulating Organ Regeneration and Fibrosis. Stem Cells Transl Med 2022; 11:1135-1142. [PMID: 36169406 DOI: 10.1093/stcltm/szac070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 08/28/2022] [Indexed: 11/14/2022] Open
Abstract
The vasculature occupies a large area of the body, and none of the physiological activities can be carried out without blood vessels. Blood vessels are not just passive conduits and barriers for delivering blood and nutrients. Meanwhile, endothelial cells covering the vascular lumen establish vascular niches by deploying some growth factors, known as angiocrine factors, and actively participate in the regulation of a variety of physiological processes, such as organ regeneration and fibrosis and the occurrence and development of cancer. After organ injury, vascular endothelial cells regulate the repair process by secreting various angiocrine factors, triggering the proliferation and differentiation process of stem cells. Therefore, analyzing the vascular niche and exploring the factors that maintain vascular homeostasis can provide strong theoretical support for clinical treatment targeting blood vessels. Here we mainly discuss the regulatory mechanisms of the vascular niche in organ regeneration and fibrosis.
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Affiliation(s)
- Yutian Chen
- The Department of Endovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
| | - Bi-Sen Ding
- State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, People's Republic of China
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9
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Guan S, Chen X, Chen Y, Xie W, Liang H, Zhu X, Yang Y, Fang W, Huang Y, Zhao H, Zhuang W, Liu S, Huang M, Wang X, Zhang L. FOXM1 Variant Contributes to Gefitinib Resistance via Activating Wnt/β-Catenin Signal Pathway in Patients with Non-Small Cell Lung Cancer. Clin Cancer Res 2022; 28:3770-3784. [PMID: 35695863 DOI: 10.1158/1078-0432.ccr-22-0791] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 05/04/2022] [Accepted: 06/08/2022] [Indexed: 12/09/2022]
Abstract
PURPOSE Although gefitinib prolonged the progression-free survival (PFS) of patients with non-small cell lung cancer (NSCLC), unpredictable resistance limited its clinical efficacy. Novel predictive biomarkers with explicit mechanisms are urgently needed. EXPERIMENTAL DESIGN A total of 282 patients with NSCLC with gefitinib treatment were randomly assigned in a 7:3 ratio to exploratory (n = 192) and validation (n = 90) cohorts. The candidate polymorphisms were selected with Haploview4.2 in Hapmap and genotyped by a MassARRAY system, and the feature variables were identified through Randomforest Survival analysis. Tanswell and clonogenic assays, base editing and cell-derived tumor xenograft model were performed to uncover the underlying mechanism. RESULTS We found that the germline missense polymorphism rs3742076 (A>G, S628P), located in transactivation domain of FOXM1, was associated with PFS in exploratory (median PFS: GG vs. GA&AA, 9.20 vs. 13.37 months, P = 0.00039, HR = 2.399) and validation (median PFS: GG vs. GA&AA, 8.13 vs. 13.80 months, P = 0.048, HR = 2.628) cohorts. We elucidated that rs3742076_G conferred resistance to gefitinib by increasing protein stability of FOXM1 and facilitating an aggressive phenotype in vitro and in vivo through activating wnt/β-catenin signaling pathway. Meanwhile, FOXM1 level was highly associated with prognosis in patients with EGFR-mutant NSCLC. Mechanistically, FOXM1 rs3742076_G upregulated wnt/β-catenin activity by directly binding to β-catenin in cytoplasm and promoting transcription of β-catenin in nucleus. Remarkably, inhibition of β-catenin markedly reversed rs3742076_G-induced gefitinib resistance and aggressive phenotypes. CONCLUSIONS These findings characterized rs3742076_G as a gain-of-function polymorphism in mediating gefitinib resistance and tumor aggressiveness, and highlighted the variant as a predictive biomarker in guiding gefitinib treatment.
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Affiliation(s)
- Shaoxing Guan
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou City, Guangzhou, P. R. China
| | - Xi Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Youhao Chen
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou City, Guangzhou, P. R. China
| | - Wen Xie
- Department of Pharmaceutical Sciences and Center for Pharmacogenetics, University of Pittsburgh School of Pharmacy, Pittsburgh, Pennsylvania
| | - Heng Liang
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou City, Guangzhou, P. R. China
| | - Xia Zhu
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou City, Guangzhou, P. R. China
| | - Yunpeng Yang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Wenfeng Fang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Yan Huang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Hongyun Zhao
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Wei Zhuang
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou City, Guangzhou, P. R. China
| | - Shu Liu
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou City, Guangzhou, P. R. China
| | - Min Huang
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou City, Guangzhou, P. R. China
| | - Xueding Wang
- Laboratory of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou City, Guangzhou, P. R. China
| | - Li Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
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Evans CE, Peng Y, Zhu MM, Dai Z, Zhang X, Zhao YY. Rabeprazole Promotes Vascular Repair and Resolution of Sepsis-Induced Inflammatory Lung Injury through HIF-1α. Cells 2022; 11:cells11091425. [PMID: 35563731 PMCID: PMC9105578 DOI: 10.3390/cells11091425] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 04/17/2022] [Accepted: 04/21/2022] [Indexed: 02/07/2023] Open
Abstract
There are currently no effective treatments for sepsis and acute respiratory distress syndrome (ARDS). The repositioning of existing drugs is one possible effective strategy for the treatment of sepsis and ARDS. We previously showed that vascular repair and the resolution of sepsis-induced inflammatory lung injury is dependent upon endothelial HIF-1α/FoxM1 signaling. The aim of this study was to identify a candidate inducer of HIF-1α/FoxM1 signaling for the treatment of sepsis and ARDS. Employing high throughput screening of a library of 1200 FDA-approved drugs by using hypoxia response element (HRE)-driven luciferase reporter assays, we identified Rabeprazole (also known as Aciphex) as a top HIF-α activator. In cultured human lung microvascular endothelial cells, Rabeprazole induced HIF1A mRNA expression in a dose-dependent manner. A dose-response study of Rabeprazole in a mouse model of endotoxemia-induced inflammatory lung injury identified a dose that was well tolerated and enhanced vascular repair and the resolution of inflammatory lung injury. Rabeprazole treatment resulted in reductions in lung vascular leakage, edema, and neutrophil sequestration and proinflammatory cytokine expression during the repair phrase. We next used Hif1a/Tie2Cre knockout mice and Foxm1/Tie2Cre knockout mice to show that Rabeprazole promoted vascular repair through HIF-1α/FoxM1 signaling. In conclusion, Rabeprazole is a potent inducer of HIF-1α that promotes vascular repair and the resolution of sepsis-induced inflammatory lung injury via endothelial HIF-1α/FoxM1 signaling. This drug therefore represents a promising candidate for repurposing to effectively treat severe sepsis and ARDS.
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Affiliation(s)
- Colin E. Evans
- Program for Lung and Vascular Biology, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL 60611, USA; (Y.P.); (M.M.Z.); (Z.D.); (X.Z.)
- Section for Injury Repair and Regeneration Research, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL 60611, USA
- Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Correspondence: (C.E.E.); (Y.-Y.Z.); Tel.: +1-(312)-503-7593 (Y.-Y.Z.)
| | - Yi Peng
- Program for Lung and Vascular Biology, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL 60611, USA; (Y.P.); (M.M.Z.); (Z.D.); (X.Z.)
- Section for Injury Repair and Regeneration Research, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL 60611, USA
- Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Maggie M. Zhu
- Program for Lung and Vascular Biology, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL 60611, USA; (Y.P.); (M.M.Z.); (Z.D.); (X.Z.)
- Section for Injury Repair and Regeneration Research, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL 60611, USA
- Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Zhiyu Dai
- Program for Lung and Vascular Biology, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL 60611, USA; (Y.P.); (M.M.Z.); (Z.D.); (X.Z.)
- Section for Injury Repair and Regeneration Research, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL 60611, USA
- Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Xianming Zhang
- Program for Lung and Vascular Biology, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL 60611, USA; (Y.P.); (M.M.Z.); (Z.D.); (X.Z.)
- Section for Injury Repair and Regeneration Research, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL 60611, USA
- Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - You-Yang Zhao
- Program for Lung and Vascular Biology, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL 60611, USA; (Y.P.); (M.M.Z.); (Z.D.); (X.Z.)
- Section for Injury Repair and Regeneration Research, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL 60611, USA
- Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Correspondence: (C.E.E.); (Y.-Y.Z.); Tel.: +1-(312)-503-7593 (Y.-Y.Z.)
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11
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Wang DM, Soni D, Regmi SC, Vogel SM, Tiruppathi C. TAK1 is essential for endothelial barrier maintenance and repair after lung vascular injury. Mol Biol Cell 2022; 33:ar65. [PMID: 35324316 PMCID: PMC9561857 DOI: 10.1091/mbc.e21-11-0563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
TGF–β-activated kinase 1 (TAK1) plays crucial roles in innate and adaptive immune responses and is required for embryonic vascular development. However, TAK1’s role in regulating vascular barrier integrity is not well defined. Here we show that endothelial TAK1 kinase function is required to maintain and repair the injured lung endothelial barrier. We observed that inhibition of TAK1 with 5Z-7-oxozeaenol markedly reduced expression of β-catenin (β-cat) and VE-cadherin at endothelial adherens junctions and augmented protease-activated receptor-1 (PAR-1)- or toll-like receptor-4 (TLR-4)-induced increases in lung vascular permeability. In inducible endothelial cell (EC)-restricted TAK1 knockout (TAK1i∆EC) mice, we observed that the lung endothelial barrier was compromised and in addition, TAK1i∆EC mice exhibited heightened sensitivity to septic shock. Consistent with these findings, we observed dramatically reduced β-cat expression in lung ECs of TAK1i∆EC mice. Further, either inhibition or knockdown of TAK1 blocked PAR-1- or TLR-4-induced inactivation of glycogen synthase kinase 3β (GSK3β), which in turn increased phosphorylation, ubiquitylation, and degradation of β-cat in ECs to destabilize the endothelial barrier. Importantly, we showed that TAK1 inactivates GSK3β through AKT activation in ECs. Thus our findings in this study point to the potential of targeting the TAK1-AKT-GSK3β axis as a therapeutic approach to treat uncontrolled lung vascular leak during sepsis.
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Affiliation(s)
- Dong-Mei Wang
- Department of Pharmacology and Regenerative Medicine, College of Medicine, University of Illinois, Chicago, IL, USA
| | - Dheeraj Soni
- Department of Pharmacology and Regenerative Medicine, College of Medicine, University of Illinois, Chicago, IL, USA
| | - Sushil C Regmi
- Department of Pharmacology and Regenerative Medicine, College of Medicine, University of Illinois, Chicago, IL, USA
| | - Stephen M Vogel
- Department of Pharmacology and Regenerative Medicine, College of Medicine, University of Illinois, Chicago, IL, USA
| | - Chinnaswamy Tiruppathi
- Department of Pharmacology and Regenerative Medicine, College of Medicine, University of Illinois, Chicago, IL, USA
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12
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Zhang X, Jin H, Huang X, Chaurasiya B, Dong D, Shanley TP, Zhao YY. Robust genome editing in adult vascular endothelium by nanoparticle delivery of CRISPR-Cas9 plasmid DNA. Cell Rep 2022; 38:110196. [PMID: 34986352 PMCID: PMC8769807 DOI: 10.1016/j.celrep.2021.110196] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 07/16/2021] [Accepted: 12/10/2021] [Indexed: 12/25/2022] Open
Abstract
Vascular endothelium plays a crucial role in vascular homeostasis and tissue fluid balance. To target endothelium for robust genome editing, we developed poly(ethylene glycol) methyl ether-block-poly(lactide-co-glycolide) (PEG-b-PLGA) copolymer-based nanoparticle formulated with polyethyleneimine. A single i.v. administration of mixture of nanoparticles and plasmid DNA expressing Cas9 controlled by CDH5 promoter and guide RNA (U6 promoter) induced highly efficient genome editing in endothelial cells (ECs) of the vasculatures, including lung, heart, aorta, and peripheral vessels in adult mice. Western blotting and immunofluorescent staining demonstrated an ∼80% decrease of protein expression selectively in ECs, resulting in a phenotype similar to that of genetic knockout mice. Nanoparticle delivery of plasmid DNA could induce genome editing of two genes or genome editing and transgene expression in ECs simultaneously. Thus, nanoparticle delivery of plasmid DNA is a powerful tool to rapidly and efficiently alter expression of gene(s) in ECs for cardiovascular research and potential gene therapy.
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Affiliation(s)
- Xianming Zhang
- Program for Lung and Vascular Biology, Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA; Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Hua Jin
- Program for Lung and Vascular Biology, Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA; Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Xiaojia Huang
- Program for Lung and Vascular Biology, Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA; Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Birendra Chaurasiya
- Program for Lung and Vascular Biology, Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA; Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Daoyin Dong
- Program for Lung and Vascular Biology, Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA; Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Thomas P Shanley
- Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA
| | - You-Yang Zhao
- Program for Lung and Vascular Biology, Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL 60611, USA; Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Department of Medicine, Division of Pulmonary and Critical Care Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
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13
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Liu C, Barger CJ, Karpf AR. FOXM1: A Multifunctional Oncoprotein and Emerging Therapeutic Target in Ovarian Cancer. Cancers (Basel) 2021; 13:3065. [PMID: 34205406 PMCID: PMC8235333 DOI: 10.3390/cancers13123065] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/11/2021] [Accepted: 06/16/2021] [Indexed: 02/08/2023] Open
Abstract
Forkhead box M1 (FOXM1) is a member of the conserved forkhead box (FOX) transcription factor family. Over the last two decades, FOXM1 has emerged as a multifunctional oncoprotein and a robust biomarker of poor prognosis in many human malignancies. In this review article, we address the current knowledge regarding the mechanisms of regulation and oncogenic functions of FOXM1, particularly in the context of ovarian cancer. FOXM1 and its associated oncogenic transcriptional signature are enriched in >85% of ovarian cancer cases and FOXM1 expression and activity can be enhanced by a plethora of genomic, transcriptional, post-transcriptional, and post-translational mechanisms. As a master transcriptional regulator, FOXM1 promotes critical oncogenic phenotypes in ovarian cancer, including: (1) cell proliferation, (2) invasion and metastasis, (3) chemotherapy resistance, (4) cancer stem cell (CSC) properties, (5) genomic instability, and (6) altered cellular metabolism. We additionally discuss the evidence for FOXM1 as a cancer biomarker, describe the rationale for FOXM1 as a cancer therapeutic target, and provide an overview of therapeutic strategies used to target FOXM1 for cancer treatment.
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Affiliation(s)
| | | | - Adam R. Karpf
- Eppley Institute and Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68918-6805, USA; (C.L.); (C.J.B.)
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14
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Yi D, Liu B, Wang T, Liao Q, Zhu MM, Zhao YY, Dai Z. Endothelial Autocrine Signaling through CXCL12/CXCR4/FoxM1 Axis Contributes to Severe Pulmonary Arterial Hypertension. Int J Mol Sci 2021; 22:3182. [PMID: 33804745 PMCID: PMC8003962 DOI: 10.3390/ijms22063182] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/15/2021] [Accepted: 03/18/2021] [Indexed: 02/07/2023] Open
Abstract
Endothelial autocrine signaling is essential to maintain vascular homeostasis. There is limited information about the role of endothelial autocrine signaling in regulating severe pulmonary vascular remodeling during the onset of pulmonary arterial hypertension (PAH). In this study, we employed the first severe pulmonary hypertension (PH) mouse model, Egln1Tie2Cre (Tie2Cre-mediated disruption of Egln1) mice, to identify the novel autocrine signaling mediating the pulmonary vascular endothelial cell (PVEC) proliferation and the pathogenesis of PAH. PVECs isolated from Egln1Tie2Cre lung expressed upregulation of many growth factors or angiocrine factors such as CXCL12, and exhibited pro-proliferative phenotype coincident with the upregulation of proliferation-specific transcriptional factor FoxM1. Treatment of CXCL12 on PVECs increased FoxM1 expression, which was blocked by CXCL12 receptor CXCR4 antagonist AMD3100 in cultured human PVECs. The endothelial specific deletion of Cxcl12(Egln1/Cxcl12Tie2Cre) or AMD3100 treatment in Egln1Tie2Cre mice downregulated FoxM1 expression in vivo. We then generated and characterized a novel mouse model with endothelial specific FoxM1 deletion in Egln1Tie2Cre mice (Egln1/Foxm1Tie2Cre), and found that endothelial FoxM1 deletion reduced pulmonary vascular remodeling and right ventricular systolic pressure. Together, our study identified a novel mechanism of endothelial autocrine signaling in regulating PVEC proliferation and pulmonary vascular remodeling in PAH.
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Affiliation(s)
- Dan Yi
- Department of Internal Medicine, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ 85004, USA; (D.Y.); (B.L.); (T.W.)
| | - Bin Liu
- Department of Internal Medicine, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ 85004, USA; (D.Y.); (B.L.); (T.W.)
| | - Ting Wang
- Department of Internal Medicine, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ 85004, USA; (D.Y.); (B.L.); (T.W.)
| | - Qi Liao
- Department of Preventative Medicine, Zhejiang Provincial Key Laboratory of Pathophysiology Technology, Medical School of Ningbo University, Ningbo 315211, China;
| | - Maggie M. Zhu
- Program for Lung and Vascular Biology, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL 60611, USA; (M.M.Z.); (Y.-Y.Z.)
- Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - You-Yang Zhao
- Program for Lung and Vascular Biology, Stanley Manne Children’s Research Institute, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, IL 60611, USA; (M.M.Z.); (Y.-Y.Z.)
- Department of Pediatrics, Division of Critical Care, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Zhiyu Dai
- Department of Internal Medicine, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ 85004, USA; (D.Y.); (B.L.); (T.W.)
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15
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Xie H, Miao N, Xu D, Zhou Z, Ni J, Yin F, Wang Y, Cheng Q, Chen P, Li J, Zheng P, Zhou L, Liu J, Zhang W, Wang X, Lu L. FoxM1 promotes Wnt/β-catenin pathway activation and renal fibrosis via transcriptionally regulating multi-Wnts expressions. J Cell Mol Med 2021; 25:1958-1971. [PMID: 33434361 PMCID: PMC7882937 DOI: 10.1111/jcmm.15948] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 08/27/2020] [Accepted: 09/14/2020] [Indexed: 12/12/2022] Open
Abstract
The activation of Wnt/β‐catenin pathway plays a pivotal role in promoting renal fibrosis. The activation of Wnt/β‐catenin pathway relies on the binding of Wnts to Frizzled receptors on cell membrane. However, the factor regulating Wnts production remains unclear. Here, we demonstrated that transcriptional factor FoxM1 was significantly increased in obstructed kidneys and patients' kidneys with fibrosis. The up‐regulation of FoxM1 mainly distributed in tubular epithelial cells. Pharmacological inhibition of FoxM1 down‐regulated multi‐Wnts elevation in UUO mice and attenuated renal fibrosis. In cultured renal tubular epithelial cells, overexpression of FoxM1 promoted 8 Wnts expression, while knock‐down on FoxM1‐suppressed multi‐Wnts including Wnt1, Wnt2b and Wnt3 expression induced by Ang II. Chromatin immunoprecipitation PCR confirmed that FoxM1 bound to Wnt1, Wnt2b, Wnt3 promoters and luciferase assay further identified that the transcriptions of Wnt1, Wnt2b and Wnt3 were regulated by FoxM1. Thus, our findings show that multi‐Wnt family members were regulated by transcriptional factor FoxM1. FoxM1 might be a key switch for activating β‐catenin pathway and renal fibrosis. Therefore, FoxM1 might be a potential therapeutic target in manipulating renal fibrosis.
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Affiliation(s)
- Hongyan Xie
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Naijun Miao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Dan Xu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Zhuanli Zhou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Jiayun Ni
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Fan Yin
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Yanzhe Wang
- Department of Nephrology, Shanghai Tong Ren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200336, China
| | - Qian Cheng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Panpan Chen
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Jingyao Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Peiqing Zheng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Li Zhou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Jun Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Wei Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Xiaoxia Wang
- Department of Nephrology, Shanghai Tong Ren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200336, China
| | - Limin Lu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China.,Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, 201102, China
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16
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Xie H, Gao YM, Zhang YC, Jia MW, Peng F, Meng QH, Wang YC. Low let-7d exosomes from pulmonary vascular endothelial cells drive lung pericyte fibrosis through the TGFβRI/FoxM1/Smad/β-catenin pathway. J Cell Mol Med 2020; 24:13913-13926. [PMID: 33179861 PMCID: PMC7753874 DOI: 10.1111/jcmm.15989] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 09/08/2020] [Accepted: 09/29/2020] [Indexed: 12/14/2022] Open
Abstract
The pathogenesis of pulmonary fibrosis (PF) was mediated by the progressive deposition of excessive extracellular matrix, but little is known about the regulatory mechanisms of fibrogenesis by lung pericytes. The mouse PF model was established by treatment with bleomycin, followed by isolation of exosomes from mouse broncho‐alveolar lavage fluids by the centrifuge method. Relative mRNA/microRNA levels and protein expression were assessed by qRT‐PCR and Western blotting, respectively. The binding of let‐7d with gene promoter was validated by dual‐luciferase reporter assay. Protein interactions were verified via GST pull‐down and co‐immunoprecipitation. Nuclear retention of Smad3 was analysed by extraction of cytoplasmic and nuclear fraction of pericytes followed by Western blotting. Association of FoxM1 with gene promoter was detected by EMSA and ChIP‐PCR methods. FoxM1 expression is significantly elevated in human lung fibroblasts of PF patients and mouse PF model. The expression of let‐7d is repressed in exosomes derived from broncho‐alveolar lavage fluids of PF mice. Let‐7d or FoxM1 knockdown suppressed the expression of FoxM1, Smad3, β‐catenin, Col1A and α‐SMA expression in mouse lung pericytes under TGF‐β1 treatment. FoxM1 overexpression elevated above gene expression in mouse lung pericytes under TGF‐β1 treatment. Let‐7d directly targets TGFβRI to regulate FoxM1 and downstream gene expression in mouse lung pericytes. FoxM1 directly interacts with Smad3 proteins to promote Smad3 nuclear retention and binds with β‐catenin promoter sequence to promote fibrogenesis. Exosomes with low let‐7d from pulmonary vascular endothelial cells drive lung pericyte fibrosis through activating the TGFβRI/FoxM1/Smad/β‐catenin signalling pathway.
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Affiliation(s)
- Han Xie
- Department of Critical Care Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Department of Lung Cancer and Gastroenterology, Hunan Cancer Hospital, Changsha, China
| | - Yuan-Mei Gao
- Department of Critical Care Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yong-Chang Zhang
- Department of Lung Cancer and Gastroenterology, Hunan Cancer Hospital, Changsha, China
| | - Ming-Wang Jia
- Department of Critical Care Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Fang Peng
- Department of Critical Care Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Qing-He Meng
- Department of Surgery, SUNY Upstate Medical University, Syracuse, U.S.A
| | - Yi-Chun Wang
- Department of Critical Care Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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17
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Mechanisms of Endothelial Regeneration and Vascular Repair and Their Application to Regenerative Medicine. THE AMERICAN JOURNAL OF PATHOLOGY 2020; 191:52-65. [PMID: 33069720 PMCID: PMC7560161 DOI: 10.1016/j.ajpath.2020.10.001] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 10/01/2020] [Accepted: 10/06/2020] [Indexed: 12/14/2022]
Abstract
Endothelial barrier integrity is required for maintaining vascular homeostasis and fluid balance between the circulation and surrounding tissues and for preventing the development of vascular disease. Despite comprehensive understanding of the molecular mechanisms and signaling pathways that mediate endothelial injury, the regulatory mechanisms responsible for endothelial regeneration and vascular repair are incompletely understood and constitute an emerging area of research. Endogenous and exogenous reparative mechanisms serve to reverse vascular damage and restore endothelial barrier function through regeneration of a functional endothelium and re-engagement of endothelial junctions. In this review, mechanisms that contribute to endothelial regeneration and vascular repair are described. Targeting these mechanisms has the potential to improve outcome in diseases that are characterized by vascular injury, such as atherosclerosis, restenosis, peripheral vascular disease, sepsis, and acute respiratory distress syndrome. Future studies to further improve current understanding of the mechanisms that control endothelial regeneration and vascular repair are also highlighted.
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18
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Deng J, Hua L, Han T, Tian M, Wang D, Tang H, Sun S, Chen H, Cheng H, Zhang T, Xie Q, Wan L, Zhu H, Gong Y. The CREB-binding protein inhibitor ICG-001: a promising therapeutic strategy in sporadic meningioma with NF2 mutations. Neurooncol Adv 2020; 2:vdz055. [PMID: 32642722 PMCID: PMC7212891 DOI: 10.1093/noajnl/vdz055] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Background Meningiomas with Neurofibromin 2 gene mutations (NF2-mutant meningiomas) account for ~40% of the sporadic meningiomas. However, there is still no effective drug treatment for the disease. Methods Expression profile of Merlin protein was explored through immunohistochemistry in a meningioma patient cohort (n = 346). A 20-agent library covering a wide range of meningioma relevant targets was tested using meningioma cell lines IOMM-Lee (NF2 wildtype) and CH157-MN (NF2 deficient). Therapeutic effects and biological mechanisms of the identified compound, ICG-001, in NF2-mutant meningiomas were further characterized in vitro and in patient-derived xenograft (PDX) models. Results Low Merlin expression was associated with meningioma proliferation and poor clinical outcomes in a large patient series. ICG-001, a cAMP-responsive element binding (CREB)-binding protein (CBP) inhibitor, selectively suppressed tumor growth of cells with low Merlin expression. Besides, ICG-001 mediated CH157-MN and IOMM-Lee growth inhibition primarily through robust induction of the G1 cell-cycle arrest. Treatment with ICG-001 alone significantly reduced the growth of NF2-mutant xenografts in mice, as well. We also provide further evidence that ICG-001 inhibits proliferation of NF2-mutant meningioma cells at least partly through attenuating the FOXM1-mediated Wnt/β-catenin signaling. Conclusions This study highlights the importance of ligand-mediated Wnt/β-catenin signaling as well as its drugable potency in NF2-mutant meningioma.
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Affiliation(s)
- Jiaojiao Deng
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Lingyang Hua
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Tao Han
- Department of Molecular Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Mi Tian
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Daijun Wang
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Hailiang Tang
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Shuchen Sun
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Hong Chen
- Department of Neuropathology, Huashan Hospital, Fudan University, Shanghai, China
| | - Haixia Cheng
- Department of Neuropathology, Huashan Hospital, Fudan University, Shanghai, China
| | - Tao Zhang
- Department of Laboratory Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Qing Xie
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Lixin Wan
- Department of Molecular Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Hongda Zhu
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Ye Gong
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China.,Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China
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19
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Zhang R, Liu J, Zhang W, Hua L, Qian LT, Zhou SB. EphA5 knockdown enhances the invasion and migration ability of esophageal squamous cell carcinoma via epithelial-mesenchymal transition through activating Wnt/β-catenin pathway. Cancer Cell Int 2020; 20:20. [PMID: 31956298 PMCID: PMC6958788 DOI: 10.1186/s12935-020-1101-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 01/07/2020] [Indexed: 12/24/2022] Open
Abstract
Background The erythropoietin-producing hepatocellular (Eph) receptor A5 (EphA5) has been found to be overexpressed in some malignant tumors and is associated with disease prognosis. However, the role of EphA5 in esophageal squamous cell carcinoma (ESCC) is not clear. Methods In the present study, we measured the expression of EphA5 in ESCC tissues and cell lines including KYSE150 and KYSE450 cells. siRNA transfection was used to interfere with EphA5 expression in ESCC cell lines. Cell viability, colony formation, scratch and invasion assays were performed to explore the roles of EphA5 in ESCC cell lines. Flow cytometry analysis was performed to investigate whether EphA5 could affect the cell apoptosis and cycle. The biomarkers related to epithelial-mesenchymal transition (EMT) and molecules associated with Wnt/β‑catenin signaling were also measured by western blot and immunofluorescence. Results The protein and mRNA expression of EphA5 were significantly higher in fresh ESCC tissues and cell lines compared with normal control groups and human normal esophageal epithelial cells (HEEC). The cell viability assay and colony formation assay revealed that EphA5 knockdown enhanced the proliferation of KYSE150 and KYSE450 cells in vitro. The invasion and migration of ESCC cells were accelerated after EphA5 knockdown. The expression of EMT biomarkers was altered in ESCC cells transfected with siRNA targeting EphA5. Moreover, EphA5 downregulation enhanced the protein levels of β‑catenin and p-GSK-3βSer9, which play a key role in the Wnt/β‑catenin pathway. Conclusions EphA5 knockdown promotes the proliferation of esophageal squamous cell carcinoma,enhances invasion and migration ability via epithelial-mesenchymal transition through activating Wnt/β‑catenin pathway.
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Affiliation(s)
- Rui Zhang
- 1School of Clinical Medicine, Shan Dong University, Jinan, 250000 Shandong People's Republic of China.,2Department of Oncology, Qing Pu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, 201799 People's Republic of China
| | - Jing Liu
- 2Department of Oncology, Qing Pu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, 201799 People's Republic of China
| | - Wei Zhang
- 3Department of Pathology, Taixing People's Hospital, Taixing, 225400 Jiangsu People's Republic of China
| | - Lei Hua
- 4Department of Provincial Clinical College, Anhui Provincial Hospital of Anhui Medical University, Hefei, 230031 Anhui People's Republic of China
| | - Li-Ting Qian
- 5Department of Radiation Oncology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001 People's Republic of China
| | - Shao-Bing Zhou
- 6Department of Radiation Oncology, Taixing People's Hospital, Taixing, Jiangsu 225400 People's Republic of China
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20
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Shukla S, Milewski D, Pradhan A, Rama N, Rice K, Le T, Flick MJ, Vaz S, Zhao X, Setchell KD, Logarinho E, Kalinichenko VV, Kalin TV. The FOXM1 Inhibitor RCM-1 Decreases Carcinogenesis and Nuclear β-Catenin. Mol Cancer Ther 2019; 18:1217-1229. [PMID: 31040162 PMCID: PMC7341442 DOI: 10.1158/1535-7163.mct-18-0709] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 12/13/2018] [Accepted: 04/25/2019] [Indexed: 12/13/2022]
Abstract
The oncogenic transcription factor FOXM1 has been previously shown to play a critical role in carcinogenesis by inducing cellular proliferation in multiple cancer types. A small-molecule compound, Robert Costa Memorial drug-1 (RCM-1), has been recently identified from high-throughput screen as an inhibitor of FOXM1 in vitro and in mouse model of allergen-mediated lung inflammation. In the present study, we examined antitumor activities of RCM-1 using tumor models. Treatment with RCM-1 inhibited tumor cell proliferation as evidenced by increased cell-cycle duration. Confocal imaging of RCM-1-treated tumor cells indicated that delay in cellular proliferation was concordant with inhibition of FOXM1 nuclear localization in these cells. RCM-1 reduced the formation and growth of tumor cell colonies in the colony formation assay. In animal models, RCM-1 treatment inhibited growth of mouse rhabdomyosarcoma Rd76-9, melanoma B16-F10, and human H2122 lung adenocarcinoma. RCM-1 decreased FOXM1 protein in the tumors, reduced tumor cell proliferation, and increased tumor cell apoptosis. RCM-1 decreased protein levels and nuclear localization of β-catenin, and inhibited protein-protein interaction between β-catenin and FOXM1 in cultured tumor cells and in vivo Altogether, our study provides important evidence of antitumor potential of the small-molecule compound RCM-1, suggesting that RCM-1 can be a promising candidate for anticancer therapy.
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Affiliation(s)
- Samriddhi Shukla
- Perinatal Institute, Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - David Milewski
- Perinatal Institute, Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Arun Pradhan
- Perinatal Institute, Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
- Center for Lung Regenerative Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Nihar Rama
- Perinatal Institute, Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Kathryn Rice
- College of Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Tien Le
- Perinatal Institute, Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Matthew J Flick
- Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Sara Vaz
- Instituto de Biologia Molecular e Celular (IBMC), Instituto de Inovação e Investigação em Saúde (i3S), Universidade do Porto, Rua Alfredo Allen, Porto, Portugal
| | - Xueheng Zhao
- Mass Spectrometry Facility, Pathology and Laboratory Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Kenneth D Setchell
- Mass Spectrometry Facility, Pathology and Laboratory Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Elsa Logarinho
- Instituto de Biologia Molecular e Celular (IBMC), Instituto de Inovação e Investigação em Saúde (i3S), Universidade do Porto, Rua Alfredo Allen, Porto, Portugal
| | - Vladimir V Kalinichenko
- Perinatal Institute, Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
- Center for Lung Regenerative Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Tanya V Kalin
- Perinatal Institute, Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.
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21
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Huang X, Zhang X, Zhao DX, Yin J, Hu G, Evans CE, Zhao YY. Endothelial Hypoxia-Inducible Factor-1α Is Required for Vascular Repair and Resolution of Inflammatory Lung Injury through Forkhead Box Protein M1. THE AMERICAN JOURNAL OF PATHOLOGY 2019; 189:1664-1679. [PMID: 31121134 DOI: 10.1016/j.ajpath.2019.04.014] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 04/03/2019] [Accepted: 04/18/2019] [Indexed: 12/30/2022]
Abstract
Endothelial barrier dysfunction is a central factor in the pathogenesis of persistent lung inflammation and protein-rich edema formation, the hallmarks of acute respiratory distress syndrome. However, little is known about the molecular mechanisms that are responsible for vascular repair and resolution of inflammatory injury after sepsis challenge. Herein, we show that hypoxia-inducible factor-1α (HIF-1α), expressed in endothelial cells (ECs), is the critical transcriptional factor mediating vascular repair and resolution of inflammatory lung injury. After sepsis challenge, HIF-1α but not HIF-2α expression was rapidly induced in lung vascular ECs, and mice with EC-restricted disruption of Hif1α (Hif1af/f/Tie2Cre+) exhibited defective vascular repair, persistent inflammation, and increased mortality in contrast with the wild-type littermates after polymicrobial sepsis or endotoxemia challenge. Hif1af/f/Tie2Cre+ lungs exhibited marked decrease of EC proliferation during recovery after sepsis challenge, which was associated with inhibited expression of forkhead box protein M1 (Foxm1), a reparative transcription factor. Therapeutic restoration of endothelial Foxm1 expression, via liposomal delivery of Foxm1 plasmid DNA to Hif1af/f/Tie2Cre+ mice, resulted in reactivation of the vascular repair program and improved survival. Together, our studies, for the first time, delineate the essential role of endothelial HIF-1α in driving the vascular repair program. Thus, therapeutic activation of HIF-1α-dependent vascular repair may represent a novel and effective therapy to treat inflammatory vascular diseases, such as sepsis and acute respiratory distress syndrome.
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Affiliation(s)
- Xiaojia Huang
- Program for Lung and Vascular Biology, Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois; Division of Critical Care, Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois; Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois
| | - Xianming Zhang
- Program for Lung and Vascular Biology, Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois; Division of Critical Care, Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois; Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois
| | - David X Zhao
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois; Department of Medicine, University of Chicago, Chicago, Illinois
| | - Jun Yin
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois
| | - Guochang Hu
- Department of Anesthesiology, University of Illinois College of Medicine, Chicago, Illinois
| | - Colin E Evans
- Program for Lung and Vascular Biology, Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois; Division of Critical Care, Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois; Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois
| | - You-Yang Zhao
- Program for Lung and Vascular Biology, Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois; Division of Critical Care, Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois; Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois; Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, Illinois; Division of Pulmonary and Critical Care Medicine, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois; Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
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22
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Li Y, Wu F, Tan Q, Guo M, Ma P, Wang X, Zhang S, Xu J, Luo P, Jin Y. The multifaceted roles of FOXM1 in pulmonary disease. Cell Commun Signal 2019; 17:35. [PMID: 30992007 PMCID: PMC6469073 DOI: 10.1186/s12964-019-0347-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 03/31/2019] [Indexed: 02/06/2023] Open
Abstract
Forkhead box M1 (FOXM1), a transcriptional regulator of G1/S and G2/M transition and M phase progression in the cell cycle, plays a principal role in many physiological and pathological processes. A growing number of studies have focused on the relationship between abnormal FOXM1 expression and pulmonary diseases, such as lung cancer, chronic obstructive pulmonary disease (COPD), asthma, acute lung injury (ALI), pulmonary fibrosis, and pulmonary arterial hypertension (PAH). These studies indicate that the FOXM1 regulatory network is a major predictor of poor outcomes, especially in lung cancer, and provide novel insight into various pulmonary diseases. For the first time, this review summarizes the mechanistic relationship between FOXM1 dysregulation and pulmonary diseases, the benefits of targeting abnormal FOXM1 expression, and the questions that remain to be addressed in the future.
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Affiliation(s)
- Yumei Li
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Feng Wu
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Qi Tan
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Mengfei Guo
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Pei Ma
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Xuan Wang
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Shuai Zhang
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Juanjuan Xu
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Ping Luo
- Center for Translational Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Yang Jin
- Department of Respiratory and Critical Care Medicine, NHC Key Laboratory of Pulmonary Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China.
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23
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Sun K, Huang R, Yan L, Li DT, Liu YY, Wei XH, Cui YC, Pan CS, Fan JY, Wang X, Han JY. Schisandrin Attenuates Lipopolysaccharide-Induced Lung Injury by Regulating TLR-4 and Akt/FoxO1 Signaling Pathways. Front Physiol 2018; 9:1104. [PMID: 30177885 PMCID: PMC6109825 DOI: 10.3389/fphys.2018.01104] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 07/23/2018] [Indexed: 01/11/2023] Open
Abstract
Objective: Acute lung injury is a severe clinic condition with limited therapeutic approaches. This study evaluated whether schisandrin (Sch), an ingredient of Schisandra chinensis, has preventive effects on endothelium and epithelium injury induced by lipopolysaccharide (LPS) and the underlying mechanisms. Methods: Male Wistar rats were continuously infused with LPS (5 mg/kg/h) via the left jugular vein for 90 min. In some rats, Sch (2.5 mg/kg/h) was administrated through the left jugular vein 30 min before LPS infusion. Leukocyte recruitment, levels of inflammatory cytokines, lung histology and edema, vascular and alveolar barrier disruption and related proteins were evaluated at indicated time point after LPS challenge. Results: LPS infusion for 90 min resulted in an increased leukocyte adhesion to pulmonary venules and overproduction of cytokine and chemokine in both serum and lung homogenate. At 8 h after termination of LPS infusion, obvious Evans blue extravasation and lung edema were observed, along with an increased apoptosis, a decreased expression of tight junction and adherent junction proteins, and a reduction in von Willebrand factor (vWF) and keratin, all of which were attenuated by Sch treatment. Meanwhile, the LPS-elicited activation of TLR-4/NF-κB/MAPK and FoxO1 signaling was inhibited by Sch. Conclusion: The present study revealed that pretreatment with Sch alleviated lung endothelium and epithelium injury after LPS stimulation, which is attributable to inhibition of cell injury and activation of cell regeneration via regulation of TLR-4/NF-κB/MAPK and Akt/FoxO1 signaling pathway.
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Affiliation(s)
- Kai Sun
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China.,Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Rong Huang
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, Beijing, China.,Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Li Yan
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Dan-Tong Li
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, Beijing, China.,Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Yu-Ying Liu
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Xiao-Hong Wei
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Yuan-Chen Cui
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Chun-Shui Pan
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Jing-Yu Fan
- Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
| | - Xian Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Jing-Yan Han
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, Beijing, China.,Tasly Microcirculation Research Center, Peking University Health Science Center, Beijing, China
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24
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Cao Z, Ye T, Sun Y, Ji G, Shido K, Chen Y, Luo L, Na F, Li X, Huang Z, Ko JL, Mittal V, Qiao L, Chen C, Martinez FJ, Rafii S, Ding BS. Targeting the vascular and perivascular niches as a regenerative therapy for lung and liver fibrosis. Sci Transl Med 2018; 9:9/405/eaai8710. [PMID: 28855398 DOI: 10.1126/scitranslmed.aai8710] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 01/30/2017] [Accepted: 07/18/2017] [Indexed: 02/05/2023]
Abstract
The regenerative capacity of lung and liver is sometimes impaired by chronic or overwhelming injury. Orthotopic transplantation of parenchymal stem cells to damaged organs might reinstate their self-repair ability. However, parenchymal cell engraftment is frequently hampered by the microenvironment in diseased recipient organs. We show that targeting both the vascular niche and perivascular fibroblasts establishes "hospitable soil" to foster the incorporation of "seed," in this case, the engraftment of parenchymal cells in injured organs. Specifically, ectopic induction of endothelial cell (EC)-expressed paracrine/angiocrine hepatocyte growth factor (HGF) and inhibition of perivascular NOX4 [NADPH (reduced form of nicotinamide adenine dinucleotide phosphate) oxidase 4] synergistically enabled reconstitution of mouse and human parenchymal cells in damaged organs. Reciprocally, genetic knockout of Hgf in mouse ECs (HgfiΔEC/iΔEC) aberrantly up-regulated perivascular NOX4 during liver and lung regeneration. Dysregulated HGF and NOX4 pathways subverted the function of vascular and perivascular cells from an epithelially inductive niche to a microenvironment that inhibited parenchymal reconstitution. Perivascular NOX4 induction in HgfiΔEC/iΔEC mice recapitulated the phenotype of human and mouse liver and lung fibrosis. Consequently, EC-directed HGF and NOX4 inhibitor GKT137831 stimulated regenerative integration of mouse and human parenchymal cells in chronically injured lung and liver. Our data suggest that targeting dysfunctional perivascular and vascular cells in diseased organs can bypass fibrosis and enable reparative cell engraftment to reinstate lung and liver regeneration.
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Affiliation(s)
- Zhongwei Cao
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China. .,Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Tinghong Ye
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Yue Sun
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Gaili Ji
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Koji Shido
- Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Yutian Chen
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Lin Luo
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China.,West China Hospital, Sichuan University, China
| | - Feifei Na
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China.,West China Hospital, Sichuan University, China
| | - Xiaoyan Li
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Zhen Huang
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Jane L Ko
- Department of Biological Sciences, Seton Hall University, South Orange, NJ 07079, USA
| | - Vivek Mittal
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY 10065, USA
| | - Lina Qiao
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Chong Chen
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China.,West China Hospital, Sichuan University, China
| | - Fernando J Martinez
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Shahin Rafii
- Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY 10065, USA
| | - Bi-Sen Ding
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China. .,Ansary Stem Cell Institute, Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, NY 10065, USA
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25
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Zhu L, Zhang J, Zhou J, Lu Y, Huang S, Xiao R, Yu X, Zeng X, Liu B, Liu F, Sun M, Dai M, Hao Q, Li J, Wang T, Li T, Hu Q. Mitochondrial transplantation attenuates hypoxic pulmonary hypertension. Oncotarget 2018; 7:48925-48940. [PMID: 27419637 PMCID: PMC5226481 DOI: 10.18632/oncotarget.10596] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Accepted: 06/30/2016] [Indexed: 01/01/2023] Open
Abstract
Mitochondria are essential for the onset of hypoxia-induced pulmonary vasoconstriction and pulmonary vascular-remodeling, two major aspects underlying the development of pulmonary hypertension, an incurable disease. However, hypoxia induces relaxation of systemic arteries such as femoral arteries and mitochondrial heterogeneity controls the distinct responses of pulmonary versus femoral artery smooth muscle cells to hypoxia in vitro. The aim of this study was to determine whether mitochondrial heterogeneity can be experimentally exploited in vivo for a potential treatment against pulmonary hypertension. The intact mitochondria were transplanted into Sprague-Dawley rat pulmonary artery smooth muscle cells in vivo via intravenous administration. The immune-florescent staining and ultrastructural examinations on pulmonary arteries confirmed the intracellular distribution of exogenous mitochondria and revealed the possible mitochondrial transfer from pulmonary artery endothelial cells into smooth muscle cells in part through their intercellular space and intercellular junctions. The transplantation of mitochondria derived from femoral artery smooth muscle cells inhibited acute hypoxia-triggered pulmonary vasoconstriction, attenuated chronic hypoxia-induced pulmonary vascular remodeling, and thus prevented the development of pulmonary hypertension or cured the established pulmonary hypertension in rats exposed to chronic hypoxia. Our findings suggest that mitochondrial transplantation possesses potential implications for exploring a novel therapeutic and preventive strategy against pulmonary hypertension.
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Affiliation(s)
- Liping Zhu
- Department of Pathophysiology, School of Basic Medicine, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China.,Key Laboratory of Pulmonary Diseases of Ministry of Health, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China
| | - Jiwei Zhang
- Department of Pathophysiology, School of Basic Medicine, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China.,Key Laboratory of Pulmonary Diseases of Ministry of Health, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China.,Department of Pathology, Union Hospital, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China
| | - Juan Zhou
- Department of Pathophysiology, School of Basic Medicine, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China.,Key Laboratory of Pulmonary Diseases of Ministry of Health, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China.,Current address: Department of Clinical Laboratory of Xuzhou Central Hospital, Xuzhou, China
| | - Yankai Lu
- Department of Pathophysiology, School of Basic Medicine, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China.,Key Laboratory of Pulmonary Diseases of Ministry of Health, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China
| | - Songling Huang
- Department of Pathophysiology, School of Basic Medicine, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China.,Key Laboratory of Pulmonary Diseases of Ministry of Health, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China
| | - Rui Xiao
- Department of Pathophysiology, School of Basic Medicine, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China.,Key Laboratory of Pulmonary Diseases of Ministry of Health, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China
| | - Xiangyuan Yu
- Department of Pathophysiology, School of Basic Medicine, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China.,Key Laboratory of Pulmonary Diseases of Ministry of Health, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China
| | - Xianqin Zeng
- Department of Pathophysiology, School of Basic Medicine, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China.,Key Laboratory of Pulmonary Diseases of Ministry of Health, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China
| | - Bingxun Liu
- Department of Pathophysiology, School of Basic Medicine, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China.,Key Laboratory of Pulmonary Diseases of Ministry of Health, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China
| | - Fangbo Liu
- Department of Pathophysiology, School of Basic Medicine, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China.,Key Laboratory of Pulmonary Diseases of Ministry of Health, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China
| | - Mengxiang Sun
- Department of Pathophysiology, School of Basic Medicine, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China.,Key Laboratory of Pulmonary Diseases of Ministry of Health, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China
| | - Mao Dai
- Department of Pathophysiology, School of Basic Medicine, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China.,Key Laboratory of Pulmonary Diseases of Ministry of Health, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China
| | - Qiang Hao
- Department of Pathophysiology, School of Basic Medicine, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China.,Key Laboratory of Pulmonary Diseases of Ministry of Health, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China
| | - Jiansha Li
- Key Laboratory of Pulmonary Diseases of Ministry of Health, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China.,Department of Pathology, Tongji Hospital, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China
| | - Tao Wang
- Key Laboratory of Pulmonary Diseases of Ministry of Health, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China.,Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China
| | - Tongfei Li
- Department of Pathology, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, China
| | - Qinghua Hu
- Department of Pathophysiology, School of Basic Medicine, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China.,Key Laboratory of Pulmonary Diseases of Ministry of Health, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, China
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26
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Ma Q, Dasgupta C, Li Y, Huang L, Zhang L. MicroRNA-210 Suppresses Junction Proteins and Disrupts Blood-Brain Barrier Integrity in Neonatal Rat Hypoxic-Ischemic Brain Injury. Int J Mol Sci 2017; 18:ijms18071356. [PMID: 28672801 PMCID: PMC5535849 DOI: 10.3390/ijms18071356] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Revised: 06/21/2017] [Accepted: 06/22/2017] [Indexed: 12/16/2022] Open
Abstract
Cerebral edema, primarily caused by disruption of the blood-brain barrier (BBB), is one of the serious complications associated with brain injury in neonatal hypoxic-ischemic encephalopathy (HIE). Our recent study demonstrated that the hypoxic-ischemic (HI) treatment significantly increased microRNA-210 (miR-210) in the neonatal rat brain and inhibition of miR-210 provided neuroprotection in neonatal HI brain injury. The present study aims to determine the role of miR-210 in the regulation of BBB integrity in the developing brain. miR-210 mimic was administered via intracerebroventricular injection (i.c.v.) into the brain of rat pups. Forty-eight hours after the injection, a modified Rice-Vannucci model was conducted to produce HI brain injury. Post-assays included cerebral edema analysis, western blotting, and immunofluorescence staining for serum immunoglobulin G (IgG) leakage. The results showed that miR-210 mimic exacerbated cerebral edema and IgG leakage into the brain parenchyma. In contrast, inhibition of miR-210 with its complementary locked nucleic acid oligonucleotides (miR-210-LNA) significantly reduced cerebral edema and IgG leakage. These findings suggest that miR-210 negatively regulates BBB integrity i n the neonatal brain. Mechanistically, the seed sequences of miR-210 were identified complementary to the 3' untranslated region (3' UTR) of the mRNA transcripts of tight junction protein occludin and adherens junction protein β-catenin, indicating downstream targets of miR-210. This was further validated by in vivo data showing that miR-210 mimic significantly reduced the expression of these junction proteins in rat pup brains. Of importance, miR-210-LNA preserved the expression of junction proteins occludin and β-catenin from neonatal HI insult. Altogether, the present study reveals a novel mechanism of miR-210 in impairing BBB integrity that contributes to cerebral edema formation after neonatal HI insult, and provides new insights in miR-210-LNA mediated neuroprotection in neonatal HI brain injury.
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Affiliation(s)
- Qingyi Ma
- Center for Neonatal Biology, Division of Pharmacology, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA.
| | - Chiranjib Dasgupta
- Center for Neonatal Biology, Division of Pharmacology, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA.
| | - Yong Li
- Center for Neonatal Biology, Division of Pharmacology, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA.
| | - Lei Huang
- Center for Neonatal Biology, Division of Pharmacology, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA.
| | - Lubo Zhang
- Center for Neonatal Biology, Division of Pharmacology, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA.
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27
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Evans CE, Zhao YY. Impact of thrombosis on pulmonary endothelial injury and repair following sepsis. Am J Physiol Lung Cell Mol Physiol 2017; 312:L441-L451. [PMID: 28130261 PMCID: PMC5407094 DOI: 10.1152/ajplung.00441.2016] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 12/20/2016] [Accepted: 01/19/2017] [Indexed: 12/19/2022] Open
Abstract
The prevailing morbidity and mortality in sepsis are largely due to multiple organ dysfunction (MOD), most commonly lung injury, as well as renal and cardiac dysfunction. Despite recent advances in defining many aspects of the pathogenesis of sepsis-related MOD, including acute respiratory distress syndrome (ARDS), there are currently no effective pharmacological or cell-based treatments for the disease. Human and animal studies have shown that pulmonary thrombosis is common in sepsis-induced ARDS, and preclinical studies have shown that anticoagulation may improve outcome following sepsis challenge. The potential beneficial effect of anticoagulation on outcome is unconvincing in clinical studies, however, and these discrepancies may arise from the multiple and sometimes opposing actions of thrombosis on the pulmonary endothelium following sepsis. It has been suggested, for example, that mild pulmonary thrombosis prevents escape of bacterial infection into the circulation, while severe thrombosis causes hypoxia and results in pulmonary endothelial damage. Evidence from both human and animal studies has demonstrated the key role of microvascular leakage in determining the outcome of sepsis. In this review, we describe thrombosis-dependent mechanisms that regulate pulmonary endothelial injury and repair following sepsis, including activation of the coagulation cascade by tissue factor and stimulation of vascular repair by hypoxia-inducible factors. Targeting such mechanisms through anticoagulant, anti-inflammatory, and reparative methods may represent a novel approach for the treatment of septic patients.
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Affiliation(s)
- Colin E Evans
- Department of Pharmacology, University of Illinois at Chicago, College of Medicine, Chicago, Illinois; and
- Center for Lung and Vascular Biology, University of Illinois at Chicago, College of Medicine, Chicago, Illinois
| | - You-Yang Zhao
- Department of Pharmacology, University of Illinois at Chicago, College of Medicine, Chicago, Illinois; and
- Center for Lung and Vascular Biology, University of Illinois at Chicago, College of Medicine, Chicago, Illinois
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28
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Wu C, Evans CE, Dai Z, Huang X, Zhang X, Jin H, Hu G, Song Y, Zhao YY. Lipopolysaccharide-induced endotoxemia in corn oil-preloaded mice causes an extended course of lung injury and repair and pulmonary fibrosis: A translational mouse model of acute respiratory distress syndrome. PLoS One 2017; 12:e0174327. [PMID: 28333981 PMCID: PMC5363928 DOI: 10.1371/journal.pone.0174327] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 03/07/2017] [Indexed: 12/25/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) is characterized by acute hypoxemia respiratory failure, bilateral pulmonary infiltrates, and pulmonary edema of non-cardiac origin. Effective treatments for ARDS patients may arise from experimental studies with translational mouse models of this disease that aim to delineate the mechanisms underlying the disease pathogenesis. Mouse models of ARDS, however, can be limited by their rapid progression from injured to recovery state, which is in contrast to the course of ARDS in humans. Furthermore, current mouse models of ARDS do not recapitulate certain prominent aspects of the pathogenesis of ARDS in humans. In this study, we developed an improved endotoxemic mouse model of ARDS resembling many features of clinical ARDS including extended courses of injury and recovery as well as development of fibrosis following i.p. injection of lipopolysaccharide (LPS) to corn oil-preloaded mice. Compared with mice receiving LPS alone, those receiving corn oil and LPS exhibited extended course of lung injury and repair that occurred over a period of >2 weeks instead of 3–5days. Importantly, LPS challenge of corn oil-preloaded mice resulted in pulmonary fibrosis during the repair phase as often seen in ARDS patients. In summary, this simple novel mouse model of ARDS could represent a valuable experimental tool to elucidate mechanisms that regulate lung injury and repair in ARDS patients.
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Affiliation(s)
- Chaomin Wu
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
- Department of Pulmonary Disease, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai, China
| | - Colin E. Evans
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
- Department of Physiology, Development and Neuroscience, School of Biological Sciences, University of Cambridge, Cambridge, United Kingdom
| | - Zhiyu Dai
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
| | - Xiaojia Huang
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
| | - Xianming Zhang
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
| | - Hua Jin
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
| | - Guochang Hu
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
- Department of Anesthesiology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
| | - Yuanlin Song
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - You-Yang Zhao
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
- * E-mail:
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29
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Huang X, Dai Z, Cai L, Sun K, Cho J, Albertine KH, Malik AB, Schraufnagel DE, Zhao YY. Endothelial p110γPI3K Mediates Endothelial Regeneration and Vascular Repair After Inflammatory Vascular Injury. Circulation 2016; 133:1093-103. [PMID: 26839042 DOI: 10.1161/circulationaha.115.020918] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Accepted: 01/29/2016] [Indexed: 01/11/2023]
Abstract
BACKGROUND The integrity of endothelial monolayer is a sine qua non for vascular homeostasis and maintenance of tissue-fluid balance. However, little is known about the signaling pathways regulating regeneration of the endothelial barrier after inflammatory vascular injury. METHODS AND RESULTS Using genetic and pharmacological approaches, we demonstrated that endothelial regeneration selectively requires activation of p110γPI3K signaling, which thereby mediates the expression of the endothelial reparative transcription factor Forkhead box M1 (FoxM1). We observed that FoxM1 induction in the pulmonary vasculature was inhibited in mice treated with a p110γ-selective inhibitor and in Pik3cg(-/-) mice after lipopolysaccharide challenge. Pik3cg(-/-) mice exhibited persistent lung inflammation induced by sepsis and sustained increase in vascular permeability. Restoration of expression of either p110γ or FoxM1 in pulmonary endothelial cells of Pik3cg(-/-) mice restored endothelial regeneration and normalized the defective vascular repair program. We also observed diminished expression of p110γ in pulmonary vascular endothelial cells of patients with acute respiratory distress syndrome, suggesting that impaired p110γ-FoxM1 vascular repair signaling pathway is a critical factor in persistent leaky lung microvessels and edema formation in the disease. CONCLUSIONS We identify p110γ as the critical mediator of endothelial regeneration and vascular repair after sepsis-induced inflammatory injury. Thus, activation of p110γ-FoxM1 endothelial regeneration may represent a novel strategy for the treatment of inflammatory vascular diseases.
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Affiliation(s)
- Xiaojia Huang
- From Department of Pharmacology (X.H., Z.D., L.C., K.S., J.C., A.B.M., Y.-Y.Z.), Center for Lung and Vascular Biology (X.H., Z.D., L.C., K.S., A.B.M., Y.-Y.Z.), Department of Medicine (D.E.S.), University of Illinois College of Medicine, Chicago; and Departments of Pediatrics and Medicine, University of Utah School of Medicine, Salt Lake City (K.H.A.)
| | - Zhiyu Dai
- From Department of Pharmacology (X.H., Z.D., L.C., K.S., J.C., A.B.M., Y.-Y.Z.), Center for Lung and Vascular Biology (X.H., Z.D., L.C., K.S., A.B.M., Y.-Y.Z.), Department of Medicine (D.E.S.), University of Illinois College of Medicine, Chicago; and Departments of Pediatrics and Medicine, University of Utah School of Medicine, Salt Lake City (K.H.A.)
| | - Lei Cai
- From Department of Pharmacology (X.H., Z.D., L.C., K.S., J.C., A.B.M., Y.-Y.Z.), Center for Lung and Vascular Biology (X.H., Z.D., L.C., K.S., A.B.M., Y.-Y.Z.), Department of Medicine (D.E.S.), University of Illinois College of Medicine, Chicago; and Departments of Pediatrics and Medicine, University of Utah School of Medicine, Salt Lake City (K.H.A.)
| | - Kai Sun
- From Department of Pharmacology (X.H., Z.D., L.C., K.S., J.C., A.B.M., Y.-Y.Z.), Center for Lung and Vascular Biology (X.H., Z.D., L.C., K.S., A.B.M., Y.-Y.Z.), Department of Medicine (D.E.S.), University of Illinois College of Medicine, Chicago; and Departments of Pediatrics and Medicine, University of Utah School of Medicine, Salt Lake City (K.H.A.)
| | - Jaehyung Cho
- From Department of Pharmacology (X.H., Z.D., L.C., K.S., J.C., A.B.M., Y.-Y.Z.), Center for Lung and Vascular Biology (X.H., Z.D., L.C., K.S., A.B.M., Y.-Y.Z.), Department of Medicine (D.E.S.), University of Illinois College of Medicine, Chicago; and Departments of Pediatrics and Medicine, University of Utah School of Medicine, Salt Lake City (K.H.A.)
| | - Kurt H Albertine
- From Department of Pharmacology (X.H., Z.D., L.C., K.S., J.C., A.B.M., Y.-Y.Z.), Center for Lung and Vascular Biology (X.H., Z.D., L.C., K.S., A.B.M., Y.-Y.Z.), Department of Medicine (D.E.S.), University of Illinois College of Medicine, Chicago; and Departments of Pediatrics and Medicine, University of Utah School of Medicine, Salt Lake City (K.H.A.)
| | - Asrar B Malik
- From Department of Pharmacology (X.H., Z.D., L.C., K.S., J.C., A.B.M., Y.-Y.Z.), Center for Lung and Vascular Biology (X.H., Z.D., L.C., K.S., A.B.M., Y.-Y.Z.), Department of Medicine (D.E.S.), University of Illinois College of Medicine, Chicago; and Departments of Pediatrics and Medicine, University of Utah School of Medicine, Salt Lake City (K.H.A.)
| | - Dean E Schraufnagel
- From Department of Pharmacology (X.H., Z.D., L.C., K.S., J.C., A.B.M., Y.-Y.Z.), Center for Lung and Vascular Biology (X.H., Z.D., L.C., K.S., A.B.M., Y.-Y.Z.), Department of Medicine (D.E.S.), University of Illinois College of Medicine, Chicago; and Departments of Pediatrics and Medicine, University of Utah School of Medicine, Salt Lake City (K.H.A.)
| | - You-Yang Zhao
- From Department of Pharmacology (X.H., Z.D., L.C., K.S., J.C., A.B.M., Y.-Y.Z.), Center for Lung and Vascular Biology (X.H., Z.D., L.C., K.S., A.B.M., Y.-Y.Z.), Department of Medicine (D.E.S.), University of Illinois College of Medicine, Chicago; and Departments of Pediatrics and Medicine, University of Utah School of Medicine, Salt Lake City (K.H.A.).
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30
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Chiu WT, Huang YF, Tsai HY, Chen CC, Chang CH, Huang SC, Hsu KF, Chou CY. FOXM1 confers to epithelial-mesenchymal transition, stemness and chemoresistance in epithelial ovarian carcinoma cells. Oncotarget 2016; 6:2349-65. [PMID: 25537512 PMCID: PMC4385856 DOI: 10.18632/oncotarget.2957] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 12/09/2015] [Indexed: 12/31/2022] Open
Abstract
Chemoresistance to anti-cancer drugs substantially reduces survival in epithelial ovarian cancer. In this study, we showed that chemoresistance to cisplatin and paclitaxel induced the epithelial-mesenchymal transition (EMT) and a stem cell phenotype in ovarian cancer cells. Chemoresistance was associated with the downregulation of epithelial markers and the upregulation of mesenchymal markers, EMT-related transcription factors, and cancer stem cell markers, which enhanced invasion and sphere formation ability. Overexpression of FOXM1 increased cisplatin-resistance and sphere formation in cisplatin-sensitive and low FOXM1-expressing ovarian cancer cells. Conversely, depletion of FOXM1 via RNA interference reduced cisplatin resistance and sphere formation in cisplatin-resistant and high FOXM1-expressing cells. Overexpression of FOXM1 also increased the expression, nuclear accumulation, and activity of β-CATENIN in chemoresistant cells, whereas downregulation of FOXM1 suppressed these events. The combination of cisplatin and the FOXM1 inhibitor thiostrepton inhibited the expression of stem cell markers in chemoresistant cells and subcutaneous ovarian tumor growth in mouse xenografts. In an analysis of 106 ovarian cancer patients, high FOXM1 levels in tumors were associated with cancer progression and short progression-free intervals. Collectively, our findings highlight the importance of FOXM1 in chemoresistance and suggest that FOXM1 inhibitors may be useful for treatment of ovarian cancer.
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Affiliation(s)
- Wen-Tai Chiu
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan.,Institute of Basic Medical Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Fang Huang
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Huei-Yu Tsai
- Cancer Research Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chien-Chin Chen
- Department of Pathology, Chia-Yi Christian Hospital, Chiayi, Taiwan.,Department of Cosmetic Science, Chia Nan University of Pharmacy and Science, Tainan, Taiwan
| | - Chang-Hwa Chang
- Institute of Basic Medical Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Soon-Cen Huang
- Department of Obstetrics and Gynecology, Chi Mei Medical Center, Liouying Campus, Tainan, Taiwan
| | - Keng-Fu Hsu
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Cancer Research Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Cheng-Yang Chou
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Cancer Research Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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31
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Tran KA, Zhang X, Predescu D, Huang X, Machado RF, Göthert JR, Malik AB, Valyi-Nagy T, Zhao YY. Endothelial β-Catenin Signaling Is Required for Maintaining Adult Blood-Brain Barrier Integrity and Central Nervous System Homeostasis. Circulation 2015; 133:177-86. [PMID: 26538583 DOI: 10.1161/circulationaha.115.015982] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 10/29/2015] [Indexed: 12/13/2022]
Abstract
BACKGROUND The blood-brain barrier (BBB) formed by brain endothelial cells interconnected by tight junctions is essential for the homeostasis of the central nervous system. Although studies have shown the importance of various signaling molecules in BBB formation during development, little is known about the molecular basis regulating the integrity of the adult BBB. METHODS AND RESULTS Using a mouse model with tamoxifen-inducible endothelial cell-restricted disruption of ctnnb1 (iCKO), we show here that endothelial β-catenin signaling is essential for maintaining BBB integrity and central nervous system homeostasis in adult mice. The iCKO mice developed severe seizures accompanied by neuronal injury, multiple brain petechial hemorrhages, and central nervous system inflammation, and all had postictal death. Disruption of endothelial β-catenin induced BBB breakdown and downregulation of the specific tight junction proteins claudin-1 and -3 in adult brain endothelial cells. The clinical relevance of the data is indicated by the observation of decreased expression of claudin-1 and nuclear β-catenin in brain endothelial cells of hemorrhagic lesions of hemorrhagic stroke patients. CONCLUSIONS These results demonstrate the prerequisite role of endothelial β-catenin in maintaining the integrity of adult BBB. The results suggest that BBB dysfunction secondary to defective β-catenin transcription activity is a key pathogenic factor in hemorrhagic stroke, seizure activity, and central nervous system inflammation.
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Affiliation(s)
- Khiem A Tran
- From Department of Pharmacology (K.A.T., X.Z., X.H., A.B.M., Y.Y.Z), Center for Lung and Vascular Biology (K.A.T., X.Z., X.H., A.B.M., Y.Y.Z), Department of Medicine (R.F.M.), and Department of Pathology (T.V.-N.), University of Illinois College of Medicine, Chicago; Department of Pharmacology, Rush University, Chicago, IL (D.P.); and Department of Hematology, West German Cancer Center, University Hospital Essen, Essen, Germany (J.R.G.)
| | - Xianming Zhang
- From Department of Pharmacology (K.A.T., X.Z., X.H., A.B.M., Y.Y.Z), Center for Lung and Vascular Biology (K.A.T., X.Z., X.H., A.B.M., Y.Y.Z), Department of Medicine (R.F.M.), and Department of Pathology (T.V.-N.), University of Illinois College of Medicine, Chicago; Department of Pharmacology, Rush University, Chicago, IL (D.P.); and Department of Hematology, West German Cancer Center, University Hospital Essen, Essen, Germany (J.R.G.)
| | - Dan Predescu
- From Department of Pharmacology (K.A.T., X.Z., X.H., A.B.M., Y.Y.Z), Center for Lung and Vascular Biology (K.A.T., X.Z., X.H., A.B.M., Y.Y.Z), Department of Medicine (R.F.M.), and Department of Pathology (T.V.-N.), University of Illinois College of Medicine, Chicago; Department of Pharmacology, Rush University, Chicago, IL (D.P.); and Department of Hematology, West German Cancer Center, University Hospital Essen, Essen, Germany (J.R.G.)
| | - Xiaojia Huang
- From Department of Pharmacology (K.A.T., X.Z., X.H., A.B.M., Y.Y.Z), Center for Lung and Vascular Biology (K.A.T., X.Z., X.H., A.B.M., Y.Y.Z), Department of Medicine (R.F.M.), and Department of Pathology (T.V.-N.), University of Illinois College of Medicine, Chicago; Department of Pharmacology, Rush University, Chicago, IL (D.P.); and Department of Hematology, West German Cancer Center, University Hospital Essen, Essen, Germany (J.R.G.)
| | - Roberto F Machado
- From Department of Pharmacology (K.A.T., X.Z., X.H., A.B.M., Y.Y.Z), Center for Lung and Vascular Biology (K.A.T., X.Z., X.H., A.B.M., Y.Y.Z), Department of Medicine (R.F.M.), and Department of Pathology (T.V.-N.), University of Illinois College of Medicine, Chicago; Department of Pharmacology, Rush University, Chicago, IL (D.P.); and Department of Hematology, West German Cancer Center, University Hospital Essen, Essen, Germany (J.R.G.)
| | - Joachim R Göthert
- From Department of Pharmacology (K.A.T., X.Z., X.H., A.B.M., Y.Y.Z), Center for Lung and Vascular Biology (K.A.T., X.Z., X.H., A.B.M., Y.Y.Z), Department of Medicine (R.F.M.), and Department of Pathology (T.V.-N.), University of Illinois College of Medicine, Chicago; Department of Pharmacology, Rush University, Chicago, IL (D.P.); and Department of Hematology, West German Cancer Center, University Hospital Essen, Essen, Germany (J.R.G.)
| | - Asrar B Malik
- From Department of Pharmacology (K.A.T., X.Z., X.H., A.B.M., Y.Y.Z), Center for Lung and Vascular Biology (K.A.T., X.Z., X.H., A.B.M., Y.Y.Z), Department of Medicine (R.F.M.), and Department of Pathology (T.V.-N.), University of Illinois College of Medicine, Chicago; Department of Pharmacology, Rush University, Chicago, IL (D.P.); and Department of Hematology, West German Cancer Center, University Hospital Essen, Essen, Germany (J.R.G.)
| | - Tibor Valyi-Nagy
- From Department of Pharmacology (K.A.T., X.Z., X.H., A.B.M., Y.Y.Z), Center for Lung and Vascular Biology (K.A.T., X.Z., X.H., A.B.M., Y.Y.Z), Department of Medicine (R.F.M.), and Department of Pathology (T.V.-N.), University of Illinois College of Medicine, Chicago; Department of Pharmacology, Rush University, Chicago, IL (D.P.); and Department of Hematology, West German Cancer Center, University Hospital Essen, Essen, Germany (J.R.G.)
| | - You-Yang Zhao
- From Department of Pharmacology (K.A.T., X.Z., X.H., A.B.M., Y.Y.Z), Center for Lung and Vascular Biology (K.A.T., X.Z., X.H., A.B.M., Y.Y.Z), Department of Medicine (R.F.M.), and Department of Pathology (T.V.-N.), University of Illinois College of Medicine, Chicago; Department of Pharmacology, Rush University, Chicago, IL (D.P.); and Department of Hematology, West German Cancer Center, University Hospital Essen, Essen, Germany (J.R.G.).
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32
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Liu H, Yu X, Yu S, Kou J. Molecular mechanisms in lipopolysaccharide-induced pulmonary endothelial barrier dysfunction. Int Immunopharmacol 2015; 29:937-946. [PMID: 26462590 DOI: 10.1016/j.intimp.2015.10.010] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 10/01/2015] [Accepted: 10/07/2015] [Indexed: 12/21/2022]
Abstract
The confluent pulmonary endothelium plays an important role as a semi-permeable barrier between the vascular space of blood vessels and the underlying tissues, and it contributes to the maintenance of circulatory fluid homeostasis. Pulmonary endothelial barrier dysfunction is a pivotal early step in the development of a variety of high mortality diseases, such as acute lung injury (ALI). Endothelium barrier dysfunction in response to inflammatory or infectious mediators, including lipopolysaccharide (LPS), is accompanied by invertible cell deformation and interendothelial gap formation. However, specific pharmacological therapies aiming at ameliorating pulmonary endothelial barrier function in patients are still lacking. A full understanding of the fundamental mechanisms that are involved in the regulation of pulmonary endothelial permeability is essential for the development of barrier protective therapeutic strategies. Therefore, this review summarizes several important molecular mechanisms involved in LPS-induced changes in pulmonary endothelial barrier function. As for barrier-disruption, the activation of myosin light chain kinase (MLCK), RhoA and tyrosine kinases; increase of calcium influx; and apoptosis of the endothelium lead to an elevation of lung endothelial permeability. Additionally, the activation of Rac1, Cdc42, protease activated receptor 1 (PAR1) and adenosine receptors (ARs), as well as the increase of cyclic AMP and sphingosine-1-phosphate (S1P) content, protect against LPS-induced lung endothelial barrier dysfunction. Furthermore, current regulatory factors and strategies against the development of LPS-induced lung endothelial hyper-permeability are discussed.
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Affiliation(s)
- Han Liu
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, 639, Longmian Road, Nanjing, 211198, PR China
| | - Xiu Yu
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, 639, Longmian Road, Nanjing, 211198, PR China
| | - Sulan Yu
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, 639, Longmian Road, Nanjing, 211198, PR China
| | - Junping Kou
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, 639, Longmian Road, Nanjing, 211198, PR China.
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Mao SZ, Ye X, Liu G, Song D, Liu SF. Resident Endothelial Cells and Endothelial Progenitor Cells Restore Endothelial Barrier Function After Inflammatory Lung Injury. Arterioscler Thromb Vasc Biol 2015; 35:1635-1644. [PMID: 25977568 DOI: 10.1161/atvbaha.115.305519] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 04/29/2015] [Indexed: 01/04/2023]
Abstract
OBJECTIVE Disruption of endothelial barrier integrity is a characteristic of many inflammatory conditions. However, the origin and function of endothelial cells (ECs) restoring endothelial barrier function remain unknown. This study defined the roles of resident ECs (RECs) and bone marrow-derived endothelial progenitor cells (BMDEPCs) in endothelial barrier restoration after endotoxemic lung injury. APPROACH AND RESULTS We generated mice that enable to quantify proliferating RECs or BMDEPCs and also to study the causal link between REC or BMDEPC proliferation and endothelial barrier restoration. Using these mouse models, we showed that endothelial barrier restoration was associated with increased REC and BMDEPC proliferation. RECs and BMDEPCs participate in barrier repair. Immunofluorescence staining demonstrated that RECs proliferate in situ on endothelial layer and that BMDEPCs are engrafted into endothelial layer of lung microvessels at the active barrier repair phase. In lungs, 8 weeks after lipopolysaccharide-induced injury, the number of REC-derived ECs (CD45(-)/CD31(+)/BrdU(+)/rtTA(+)) or BMDEPC-derived ECs (CD45(-)/CD31(+)/eNOS(+)/GFP(+)) increased by 22- or 121-fold, respectively. The suppression of REC or BMDEPC proliferation by blocking REC or BMDEPC intrinsic nuclear factor-κB at the barrier repair phase was associated with an augmented endothelial permeability and impeded endothelial barrier recovery. RECs and BMDEPCs contributed differently to endothelial barrier repair. In lungs, 8 weeks after lipopolysaccharide-induced injury, REC-derived ECs constituted 22%, but BMDEPC-derived ECs constituted only 3.7% of the total new ECs. CONCLUSIONS REC is a major and BMDEPC is a complementary source of new ECs in endothelial barrier restoration. RECs and BMDEPCs play important roles in endothelial barrier restoration after inflammatory lung injury.
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Affiliation(s)
- Sun-Zhong Mao
- Centers for Heart and Lung Research, and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, NY 11030, U.S.A.,Institute of Hypoxia Medicine, Wenzhou Medical University, Wenzhou 325035, China
| | - Xiaobing Ye
- Centers for Heart and Lung Research, and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, NY 11030, U.S.A
| | - Gang Liu
- Centers for Heart and Lung Research, and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, NY 11030, U.S.A
| | - Dongmei Song
- Centers for Heart and Lung Research, and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, NY 11030, U.S.A
| | - Shu Fang Liu
- Centers for Heart and Lung Research, and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, NY 11030, U.S.A.,Institute of Hypoxia Medicine, Wenzhou Medical University, Wenzhou 325035, China
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Zhao YD, Huang X, Yi F, Dai Z, Qian Z, Tiruppathi C, Tran K, Zhao YY. Endothelial FoxM1 mediates bone marrow progenitor cell-induced vascular repair and resolution of inflammation following inflammatory lung injury. Stem Cells 2015; 32:1855-64. [PMID: 24578354 DOI: 10.1002/stem.1690] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Revised: 01/25/2014] [Accepted: 01/30/2014] [Indexed: 01/08/2023]
Abstract
Adult stem cell treatment is a potential novel therapeutic approach for acute respiratory distress syndrome. Given the extremely low rate of cell engraftment, it is believed that these cells exert their beneficial effects via paracrine mechanisms. However, the endogenous mediator(s) in the pulmonary vasculature remains unclear. Using the mouse model with endothelial cell (EC)-restricted disruption of FoxM1 (FoxM1 CKO), here we show that endothelial expression of the reparative transcriptional factor FoxM1 is required for the protective effects of bone marrow progenitor cells (BMPC) against LPS-induced inflammatory lung injury and mortality. BMPC treatment resulted in rapid induction of FoxM1 expression in wild type (WT) but not FoxM1 CKO lungs. BMPC-induced inhibition of lung vascular injury, resolution of lung inflammation, and survival, as seen in WT mice, were abrogated in FoxM1 CKO mice following LPS challenge. Mechanistically, BMPC treatment failed to induce lung EC proliferation in FoxM1 CKO mice, which was associated with impaired expression of FoxM1 target genes essential for cell cycle progression. We also observed that BMPC treatment enhanced endothelial barrier function in WT but not in FoxM1-deficient EC monolayers. Restoration of β-catenin expression in FoxM1-deficient ECs normalized endothelial barrier enhancement in response to BMPC treatment. These data demonstrate the requisite role of endothelial FoxM1 in the mechanism of BMPC-induced vascular repair to restore vascular integrity and accelerate resolution of inflammation, thereby promoting survival following inflammatory lung injury.
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Affiliation(s)
- Yidan D Zhao
- Department of Pharmacology, The University of Illinois College of Medicine, Chicago, Illinois, USA; Center for Lung and Vascular Biology, The University of Illinois College of Medicine, Chicago, Illinois, USA
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Liu G, Ye X, Miller EJ, Liu SF. NF-κB-to-AP-1 switch: a mechanism regulating transition from endothelial barrier injury to repair in endotoxemic mice. Sci Rep 2014; 4:5543. [PMID: 24986487 PMCID: PMC4078303 DOI: 10.1038/srep05543] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 06/16/2014] [Indexed: 11/24/2022] Open
Abstract
Endothelial barrier disruption is a hallmark of multiple organ injury (MOI). However, mechanisms governing the restoration of endothelial barrier function are poorly understood. Here, we uncovered an NF-κB-to-AP-1 switch that regulates the transition from barrier injury to repair following endotoxemic MOI. Endothelial NF-κB mediates barrier repair by inhibiting endothelial cell (EC) apoptosis. Blockade of endothelial NF-κB pathway activated the activator protein (AP)-1 pathway (NF-κB-to-AP-1 switch), which compensated for the anti-apoptotic and barrier-repair functions of NF-κB. The NF-κB-to-AP-1 switch occurred at 24 hours (injury to repair transition phase), but not at 48 hours (repair phase) post-LPS, and required an inflammatory signal within the endothelium. In the absence of an inflammatory signal, the NF-κB-to-AP-1 switch failed, resulting in enhanced EC apoptosis, augmented endothelial permeability, and impeded transition from barrier injury to recovery. The NF-κB-to-AP-1 switch is a protective mechanism to ensure timely transition from endothelial barrier injury to repair, accelerating barrier restoration following MOI.
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Affiliation(s)
- Gang Liu
- 1] Centers for Heart and Lung Research and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, NY 11030, USA [2]
| | - Xiaobing Ye
- 1] Centers for Heart and Lung Research and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, NY 11030, USA [2]
| | - Edmund J Miller
- Centers for Heart and Lung Research and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, NY 11030, USA
| | - Shu Fang Liu
- Centers for Heart and Lung Research and Pulmonary and Critical Care Medicine, the Feinstein Institute for Medical Research, Manhasset, NY 11030, USA
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Wang CM, Liu R, Wang L, Nascimento L, Brennan VC, Yang WH. SUMOylation of FOXM1B alters its transcriptional activity on regulation of MiR-200 family and JNK1 in MCF7 human breast cancer cells. Int J Mol Sci 2014; 15:10233-51. [PMID: 24918286 PMCID: PMC4100150 DOI: 10.3390/ijms150610233] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 05/28/2014] [Accepted: 06/03/2014] [Indexed: 01/04/2023] Open
Abstract
Transcription factor Forkhead Box Protein M1 (FOXM1) is a well-known master regulator in controlling cell-cycle pathways essential for DNA replication and mitosis, as well as cell proliferation. Among the three major isoforms of FOXM1, FOXM1B is highly associated with tumor growth and metastasis. The activities of FOXM1B are modulated by post-translational modifications (PTMs), such as phosphorylation, but whether it is modified by small ubiquitin-related modifier (SUMO) remains unknown. The aim of the current study was to determine whether FOXM1B is post-translationally modified by SUMO proteins and also to identify SUMOylation of FOXM1B on its target gene transcription activity. Here we report that FOXM1B is clearly defined as a SUMO target protein at the cellular levels. Moreover, a SUMOylation protease, SENP2, significantly decreased SUMOylation of FOXM1B. Notably, FOXM1B is selectively SUMOylated at lysine residue 463. While SUMOylation of FOXM1B is required for full repression of its target genes MiR-200b/c and p21, SUMOylation of FOXM1B is essential for full activation of JNK1 gene. Overall, we provide evidence that FOXM1B is post-translationally modified by SUMO and SUMOylation of FOXM1B plays a functional role in regulation of its target gene activities.
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Affiliation(s)
- Chiung-Min Wang
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, GA 31404, USA.
| | - Runhua Liu
- Department of Genetics and Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
| | - Lizhong Wang
- Department of Genetics and Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
| | - Leticia Nascimento
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, GA 31404, USA.
| | - Victoria C Brennan
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, GA 31404, USA.
| | - Wei-Hsiung Yang
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, GA 31404, USA.
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Gong H, Gao X, Feng S, Siddiqui MR, Garcia A, Bonini MG, Komarova Y, Vogel SM, Mehta D, Malik AB. Evidence of a common mechanism of disassembly of adherens junctions through Gα13 targeting of VE-cadherin. ACTA ACUST UNITED AC 2014; 211:579-91. [PMID: 24590762 PMCID: PMC3949568 DOI: 10.1084/jem.20131190] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The heterotrimeric G protein Gα13 transduces signals from G protein-coupled receptors (GPCRs) to induce cell spreading, differentiation, migration, and cell polarity. Here, we describe a novel GPCR-independent function of Gα13 in regulating the stability of endothelial cell adherens junctions (AJs). We observed that the oxidant H2O2, which is released in response to multiple proinflammatory mediators, induced the interaction of Gα13 with VE-cadherin. Gα13 binding to VE-cadherin in turn induced Src activation and VE-cadherin phosphorylation at Tyr 658, the p120-catenin binding site thought to be responsible for VE-cadherin internalization. Inhibition of Gα13-VE-cadherin interaction using an interfering peptide derived from the Gα13 binding motif on VE-cadherin abrogated the disruption of AJs in response to inflammatory mediators. These studies identify a unique role of Gα13 binding to VE-cadherin in mediating VE-cadherin internalization and endothelial barrier disruption and inflammation.
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Affiliation(s)
- Haixia Gong
- Department of Pharmacology and the Center for Lung and Vascular Biology, University of Illinois, Chicago, Il 60612
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Lim R, Barker G, Lappas M. FOXM1 is lower in human fetal membranes after spontaneous preterm labour and delivery. Reprod Fertil Dev 2014; 26:1052-60. [DOI: 10.1071/rd13140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 07/29/2013] [Indexed: 12/23/2022] Open
Abstract
Spontaneous preterm birth is usually associated with infection, inflammation or both. Forkhead box (FOX) M1 (FOXM1), a member of the FOX family of transcription factors, has been associated with inflammation. The aim of this study was to determine whether FOXM1 regulates the expression and release of pro-labour mediators in human gestational tissues. FOXM1 mRNA and protein expression were determined in fetal membranes from women at (1) preterm no labour: Caesarean section with no labour and (2) preterm labour: after spontaneous labour and delivery. Primary amnion cells were utilised to investigate the effect of small interfering RNA (siRNA)-mediated gene silencing of FOXM1 on pro-labour mediators. Spontaneous preterm labour decreased FOXM1 gene and nuclear protein expression. FOXM1 silencing in primary amnion cells increased interleukin (IL)-1β-induced pro-inflammatory cytokines (IL-6 and IL-8 mRNA expression and secretion), cyclooxygenase (COX)-2 expression and subsequent prostaglandin (PG)E2 and PGF2α release as well as gene expression and secretion of the matrix-degrading enzyme matrix metalloproteinase 9 (MMP-9). In conclusion, spontaneous preterm labour is associated with decreased FOXM1 expression in fetal membranes.
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Wierstra I. The transcription factor FOXM1 (Forkhead box M1): proliferation-specific expression, transcription factor function, target genes, mouse models, and normal biological roles. Adv Cancer Res 2013; 118:97-398. [PMID: 23768511 DOI: 10.1016/b978-0-12-407173-5.00004-2] [Citation(s) in RCA: 127] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
FOXM1 (Forkhead box M1) is a typical proliferation-associated transcription factor, which stimulates cell proliferation and exhibits a proliferation-specific expression pattern. Accordingly, both the expression and the transcriptional activity of FOXM1 are increased by proliferation signals, but decreased by antiproliferation signals, including the positive and negative regulation by protooncoproteins or tumor suppressors, respectively. FOXM1 stimulates cell cycle progression by promoting the entry into S-phase and M-phase. Moreover, FOXM1 is required for proper execution of mitosis. Accordingly, FOXM1 regulates the expression of genes, whose products control G1/S-transition, S-phase progression, G2/M-transition, and M-phase progression. Additionally, FOXM1 target genes encode proteins with functions in the execution of DNA replication and mitosis. FOXM1 is a transcriptional activator with a forkhead domain as DNA binding domain and with a very strong acidic transactivation domain. However, wild-type FOXM1 is (almost) inactive because the transactivation domain is repressed by three inhibitory domains. Inactive FOXM1 can be converted into a very potent transactivator by activating signals, which release the transactivation domain from its inhibition by the inhibitory domains. FOXM1 is essential for embryonic development and the foxm1 knockout is embryonically lethal. In adults, FOXM1 is important for tissue repair after injury. FOXM1 prevents premature senescence and interferes with contact inhibition. FOXM1 plays a role for maintenance of stem cell pluripotency and for self-renewal capacity of stem cells. The functions of FOXM1 in prevention of polyploidy and aneuploidy and in homologous recombination repair of DNA-double-strand breaks suggest an importance of FOXM1 for the maintenance of genomic stability and chromosomal integrity.
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40
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Winden DR, Ferguson NT, Bukey BR, Geyer AJ, Wright AJ, Jergensen ZR, Robinson AB, Stogsdill JA, Reynolds PR. Conditional over-expression of RAGE by embryonic alveolar epithelium compromises the respiratory membrane and impairs endothelial cell differentiation. Respir Res 2013; 14:108. [PMID: 24134692 PMCID: PMC3853184 DOI: 10.1186/1465-9921-14-108] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 10/10/2013] [Indexed: 12/13/2022] Open
Abstract
Background Receptors for advanced glycation end-products (RAGE) are cell surface receptors prominently expressed by lung epithelium. Previous research demonstrated that over-expression of RAGE by murine alveolar epithelial cells during embryogenesis caused severe lung hypoplasia and neonatal lethality. However, the effects of RAGE over-expression on adjacent matrix and endothelial cells remained unknown. Methods RAGE transgenic (TG) mice were generated that conditionally over-expressed RAGE in alveolar type II cells when fed doxycycline (dox) from conception to E18.5. To evaluate effects on the basement membrane, immunostaining and immunoblotting were performed for collagen IV and MMP-9, a matrix metalloprotease capable of degrading basement membranes. To assess changes in vasculature, immunostaining, immunoblotting and qRT-PCR were performed for Pecam-1, a platelet endothelial cell adhesion marker also known as CD31. Lastly, to characterize potential regulatory mechanisms of endothelial cell differentiation, immunoblotting and qRT-PCR for FoxM1, a key endothelium-specific transcription factor of the Forkhead Box (Fox) family, were completed. Results Qualitative immunostaining for collagen IV was less in RAGE TG mice compared to controls and immunoblotting revealed decreased collagen IV in the RAGE TG mouse lung. Additionally, elevated MMP-9 detected via immunostaining and immunoblotting implicated MMP-9 as a possible down stream effector in matrix destabilization mediated by RAGE signaling. Lastly, Pecam-1 assessment revealed a decrease in the prevalence of microvascular endothelial cells coincident with FoxM1 abrogation in RAGE TG mice compared to controls. Conclusions RAGE over-expression by alveolar epithelium weakened the basement membrane and associated matrix via increased MMP-9 activity. Furthermore, over-expression of RAGE inhibited FoxM1, suggesting that anomalous transcriptional control contributes to decreased endothelial cell prevalence in the TG mouse lung.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Paul R Reynolds
- Department of Physiology and Developmental Biology, Brigham Young University, 375A Widtsoe Building, 84602 Provo, UT, USA.
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Abstract
The establishment and maintenance of the vascular system is critical for embryonic development and postnatal life. Defects in endothelial cell development and vessel formation and function lead to embryonic lethality and are important in the pathogenesis of vascular diseases. Here, we review the underlying molecular mechanisms of endothelial cell differentiation, plasticity, and the development of the vasculature. This review focuses on the interplay among transcription factors and signaling molecules that specify the differentiation of vascular endothelial cells. We also discuss recent progress on reprogramming of somatic cells toward distinct endothelial cell lineages and its promise in regenerative vascular medicine.
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Affiliation(s)
- Changwon Park
- Department of Pharmacology, Center for Lung and Vascular Biology, The University of Illinois College of Medicine, Chicago, IL 60612, USA
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Wierstra I. FOXM1 (Forkhead box M1) in tumorigenesis: overexpression in human cancer, implication in tumorigenesis, oncogenic functions, tumor-suppressive properties, and target of anticancer therapy. Adv Cancer Res 2013; 119:191-419. [PMID: 23870513 DOI: 10.1016/b978-0-12-407190-2.00016-2] [Citation(s) in RCA: 136] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
FOXM1 (Forkhead box M1) is a typical proliferation-associated transcription factor and is also intimately involved in tumorigenesis. FOXM1 stimulates cell proliferation and cell cycle progression by promoting the entry into S-phase and M-phase. Additionally, FOXM1 is required for proper execution of mitosis. In accordance with its role in stimulation of cell proliferation, FOXM1 exhibits a proliferation-specific expression pattern and its expression is regulated by proliferation and anti-proliferation signals as well as by proto-oncoproteins and tumor suppressors. Since these factors are often mutated, overexpressed, or lost in human cancer, the normal control of the foxm1 expression by them provides the basis for deregulated FOXM1 expression in tumors. Accordingly, FOXM1 is overexpressed in many types of human cancer. FOXM1 is intimately involved in tumorigenesis, because it contributes to oncogenic transformation and participates in tumor initiation, growth, and progression, including positive effects on angiogenesis, migration, invasion, epithelial-mesenchymal transition, metastasis, recruitment of tumor-associated macrophages, tumor-associated lung inflammation, self-renewal capacity of cancer cells, prevention of premature cellular senescence, and chemotherapeutic drug resistance. However, in the context of urethane-induced lung tumorigenesis, FOXM1 has an unexpected tumor suppressor role in endothelial cells because it limits pulmonary inflammation and canonical Wnt signaling in epithelial lung cells, thereby restricting carcinogenesis. Accordingly, FOXM1 plays a role in homologous recombination repair of DNA double-strand breaks and maintenance of genomic stability, that is, prevention of polyploidy and aneuploidy. The implication of FOXM1 in tumorigenesis makes it an attractive target for anticancer therapy, and several antitumor drugs have been reported to decrease FOXM1 expression.
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Huang X, Zhao YY. Transgenic expression of FoxM1 promotes endothelial repair following lung injury induced by polymicrobial sepsis in mice. PLoS One 2012. [PMID: 23185540 PMCID: PMC3502353 DOI: 10.1371/journal.pone.0050094] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Enhancing endothelial barrier integrity for the treatment of acute lung injury (ALI) is an emerging novel therapeutic strategy. Our previous studies have demonstrated the essential role of FoxM1 in mediating endothelial regeneration and barrier repair following lipopolysaccharide-induced lung injury. However, it remains unclear whether FoxM1 expression is sufficient to promote endothelial repair in experimental models of sepsis. Here, employing the FoxM1 transgenic (FoxM1 Tg) mice, we showed that transgenic expression of FoxM1 promoted rapid recovery of endothelial barrier function and survival in a clinically relevant model of sepsis induced by cecal ligation and puncture (CLP). We observed lung vascular permeability was rapidly recovered and returned to levels similar to baseline at 48 h post-CLP challenge in FoxM1 Tg mice whereas it remained markedly elevated in WT mice. Lung edema and inflammation were resolved only in FoxM1 Tg mice at 24 h post-CLP. 5-bromo-2-deoxyuridine incorporation assay revealed a drastic induction of endothelial proliferation in FoxM1 Tg lungs at 24h post-CLP, correlating with early induction of expression of FoxM1 target genes essential for cell cycle progression. Additionally, deletion of FoxM1 in endothelial cells, employing the mouse model with endothelial cell-restricted disruption of FoxM1 (FoxM1 CKO) resulted in impaired endothelial repair following CLP challenge. Together, these data suggest FoxM1 expression in endothelial cells is necessary and sufficient to mediate endothelial repair and thereby promote survival following sepsis challenge.
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Affiliation(s)
- Xiaojia Huang
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
| | - You-Yang Zhao
- Department of Pharmacology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
- Center for Lung and Vascular Biology, University of Illinois College of Medicine, Chicago, Illinois, United States of America
- * E-mail:
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FOXM1 promotes allergen-induced goblet cell metaplasia and pulmonary inflammation. Mol Cell Biol 2012; 33:371-86. [PMID: 23149934 DOI: 10.1128/mcb.00934-12] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Chronic airway disorders, including chronic obstructive pulmonary disease (COPD), cystic fibrosis, and asthma, are associated with persistent pulmonary inflammation and goblet cell metaplasia and contribute to significant morbidity and mortality worldwide. While the molecular pathogenesis of these disorders is actively studied, little is known regarding the transcriptional control of goblet cell differentiation and mucus hyperproduction. Herein, we demonstrated that pulmonary allergen sensitization induces expression of FOXM1 transcription factor in airway epithelial and inflammatory cells. Conditional deletion of the Foxm1 gene from either airway epithelium or myeloid inflammatory cells decreased goblet cell metaplasia, reduced lung inflammation, and decreased airway resistance in response to house dust mite allergen (HDM). FOXM1 induced goblet cell metaplasia and Muc5AC expression through the transcriptional activation of Spdef. FOXM1 deletion reduced expression of CCL11, CCL24, and the chemokine receptors CCR2 and CX3CR1, resulting in decreased recruitment of eosinophils and macrophages to the lung. Deletion of FOXM1 from dendritic cells impaired the uptake of HDM antigens and decreased cell surface expression of major histocompatibility complex II (MHC II) and costimulatory molecule CD86, decreasing production of Th2 cytokines by activated T cells. Finally, pharmacological inhibition of FOXM1 by ARF peptide prevented HDM-mediated pulmonary responses. FOXM1 regulates genes critical for allergen-induced lung inflammation and goblet cell metaplasia.
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Zhang N, Wei P, Gong A, Chiu WT, Lee HT, Colman H, Huang H, Xue J, Liu M, Wang Y, Sawaya R, Xie K, Yung WA, Medema RH, He X, Huang S. FoxM1 promotes β-catenin nuclear localization and controls Wnt target-gene expression and glioma tumorigenesis. Cancer Cell 2011; 20:427-42. [PMID: 22014570 PMCID: PMC3199318 DOI: 10.1016/j.ccr.2011.08.016] [Citation(s) in RCA: 459] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2010] [Revised: 05/21/2011] [Accepted: 08/22/2011] [Indexed: 12/15/2022]
Abstract
Wnt/β-catenin signaling is essential for stem cell regulation and tumorigenesis, but its molecular mechanisms are not fully understood. Here, we report that FoxM1 is a downstream component of Wnt signaling and is critical for β-catenin transcriptional function in tumor cells. Wnt3a increases the level and nuclear translocation of FoxM1, which binds directly to β-catenin and enhances β-catenin nuclear localization and transcriptional activity. Genetic deletion of FoxM1 in immortalized neural stem cells abolishes β-catenin nuclear localization. FoxM1 mutations that disrupt the FoxM1-β-catenin interaction or FoxM1 nuclear import prevent β-catenin nuclear accumulation in tumor cells. FoxM1-β-catenin interaction controls Wnt target gene expression, is required for glioma formation, and represents a mechanism for canonical Wnt signaling during tumorigenesis.
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Affiliation(s)
- Nu Zhang
- Department of Neurosurgery
- Department of Neurosurgery, The 1st Affiliated Hospital of Sun Yat-sen University, China
| | - Ping Wei
- Department of Neurosurgery
- Institutes of Biomedical Sciences, Shanghai Cancer Center, Fudan University, China
| | | | | | | | | | - He Huang
- F.M. Kirby Neurobiology Center, Children's Hospital Boston, Harvard Medical School, Boston, MA 02115, USA
| | | | | | | | | | - Keping Xie
- Department of Gastrointestinal Medical Oncology The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA
- Program in Cancer Biology, The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX 77030, USA
| | | | - René H. Medema
- Department of Medical Oncology, UMC Utrecht, Universiteitsweg 100, Stratenum 2.118, Utrecht 3584 CG, The Netherlands
| | - Xi He
- F.M. Kirby Neurobiology Center, Children's Hospital Boston, Harvard Medical School, Boston, MA 02115, USA
| | - Suyun Huang
- Department of Neurosurgery
- Program in Cancer Biology, The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX 77030, USA
- Correspondence:
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Vadász I, Sznajder JI. Update in acute lung injury and critical care 2010. Am J Respir Crit Care Med 2011; 183:1147-52. [PMID: 21531954 DOI: 10.1164/rccm.201102-0327up] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Affiliation(s)
- István Vadász
- Department of Internal Medicine, University of Giessen Lung Center, Justus Liebig University, Klinikstrasse 36, 35392 Giessen, Germany.
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Liu Y, Sadikot RT, Adami GR, Kalinichenko VV, Pendyala S, Natarajan V, Zhao YY, Malik AB. FoxM1 mediates the progenitor function of type II epithelial cells in repairing alveolar injury induced by Pseudomonas aeruginosa. ACTA ACUST UNITED AC 2011; 208:1473-84. [PMID: 21708928 PMCID: PMC3135362 DOI: 10.1084/jem.20102041] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The alveolar epithelium is composed of the flat type I cells comprising 95% of the gas-exchange surface area and cuboidal type II cells comprising the rest. Type II cells are described as facultative progenitor cells based on their ability to proliferate and trans-differentiate into type I cells. In this study, we observed that pneumonia induced by intratracheal instillation of Pseudomonas aeruginosa (PA) in mice increased the expression of the forkhead transcription factor FoxM1 in type II cells coincidentally with the induction of alveolar epithelial barrier repair. FoxM1 was preferentially expressed in the Sca-1(+) subpopulation of progenitor type II cells. In mice lacking FoxM1 specifically in type II cells, type II cells showed decreased proliferation and impaired trans-differentiation into type I cells. Lungs of these mice also displayed defective alveolar barrier repair after injury. Expression of FoxM1 in the knockout mouse lungs partially rescued the defective trans-differentiation phenotype. Thus, expression of FoxM1 in type II cells is essential for their proliferation and transition into type I cells and for restoring alveolar barrier homeostasis after PA-induced lung injury.
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Affiliation(s)
- Yuru Liu
- Department of Pharmacology, College of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA.
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48
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Kalin TV, Ustiyan V, Kalinichenko VV. Multiple faces of FoxM1 transcription factor: lessons from transgenic mouse models. Cell Cycle 2011; 10:396-405. [PMID: 21270518 DOI: 10.4161/cc.10.3.14709] [Citation(s) in RCA: 162] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
FoxM1 transcription factor (previously called HFH-11B, Trident, FoxM1b, Win, and MPP2) is expressed in actively dividing cells and critical for cell cycle progression. FoxM1 expression is induced in a variety of tissues during embryogenesis, and Foxm1 (-/-) mice exhibit embryonic lethal phenotype due to multiple abnormalities in the liver, heart, lung and blood vessels. FoxM1 levels are dramatically decreased in adult tissues, but FoxM1 expression is re-activated during organ injury and numerous cancers. In this review, we discussed the role of FoxM1 in different cell lineages using recent data from transgenic mouse models with conditional "gain-of-function" and "loss-of-function" of FoxM1, as well as tissue samples from human patients. In addition, we provided experimental data showing additional sites of FoxM1 expression in the mouse embryo. Novel cell-autonomous roles of FoxM1 in embryonic development, organ injury and cancer formation in vivo were analyzed. Potential application of these findings for the diagnosis and treatment of human diseases were discussed.
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Affiliation(s)
- Tanya V Kalin
- Division of Pulmonary Biology and Perinatal Institute of the Cincinnati Children's Hospital Research Foundation, Cincinnati, OH, USA.
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Chavez A, Smith M, Mehta D. New Insights into the Regulation of Vascular Permeability. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2011; 290:205-48. [DOI: 10.1016/b978-0-12-386037-8.00001-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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50
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Mirza MK, Sun Y, Zhao YD, Potula HHS, Frey RS, Vogel SM, Malik AB, Zhao YY. FoxM1 regulates re-annealing of endothelial adherens junctions through transcriptional control of β-catenin expression. J Biophys Biochem Cytol 2010. [DOI: 10.1083/jcb1903oia6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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