1
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Robin H, Trudeau C, Robbins A, Chung E, Rahman E, Gangmark-Strickland O, Licari FW, Winden DR, Orr DL, Arroyo JA, Reynolds PR. A Potential Role for the Receptor for Advanced Glycation End-Products (RAGE) in the Development of Secondhand Smoke-Induced Chronic Sinusitis. Curr Issues Mol Biol 2024; 46:729-740. [PMID: 38248349 PMCID: PMC10814859 DOI: 10.3390/cimb46010047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/03/2024] [Accepted: 01/09/2024] [Indexed: 01/23/2024] Open
Abstract
Chronic sinusitis (CS) is characterized by sinonasal inflammation, mucus overproduction, and edematous mucosal tissue. CS impacts one in seven adults and estimates suggest up to 15% of the general U.S. population may be affected. This research sought to assess a potential role for receptors for advanced glycation end-products (RAGE), an inflammatory receptor expressed in tissues exposed to secondhand smoke (SHS). Human sinus tissue sections were stained for RAGE and S100s, common RAGE ligands. Wild-type mice and mice that over-express RAGE in sinonasal epithelium (RAGE TG) were maintained in room air (RA) or exposed to secondhand smoke (SHS) via a nose-only delivery system five days a week for 6 weeks. Mouse sections were stained for RAGE and tissue lysates were assayed for cleaved caspase 3, cytokines, or matrix metalloproteases. We discovered increased RAGE expression in sinus tissue following SHS exposure and in sinuses from RAGE TG mice in the absence of SHS. Cleaved caspase-3, cytokines (IL-1β, IL-3, and TNF-α), and MMPs (-9 and -13) were induced by SHS and in tissues from RAGE TG mice. These results expand the inflammatory role of RAGE signaling, a key axis in disease progression observed in smokers. In this relatively unexplored area, enhanced understanding of RAGE signaling during voluntary and involuntary smoking may help to elucidate potential therapeutic targets that may attenuate the progression of smoke-related CS.
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Affiliation(s)
- Hannah Robin
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, UT 84095, USA
| | - Courtney Trudeau
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, UT 84095, USA
| | - Adam Robbins
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, UT 84095, USA
| | - Emily Chung
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, UT 84095, USA
| | - Erum Rahman
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, UT 84095, USA
| | | | - Frank W. Licari
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, UT 84095, USA
| | - Duane R. Winden
- College of Dental Medicine, Roseman University of Health Sciences, South Jordan, UT 84095, USA
| | - Dan L. Orr
- Oral & Maxillofacial Surgery, University Medical Center, Las Vegas, NV 89102, USA
| | - Juan A. Arroyo
- Lung and Placenta Laboratory, Department of Cell Biology and Physiology, Brigham Young University, Provo, UT 84602, USA
| | - Paul R. Reynolds
- Lung and Placenta Laboratory, Department of Cell Biology and Physiology, Brigham Young University, Provo, UT 84602, USA
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2
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Zhao G, Ho W, Chu J, Xiong X, Hu B, Boakye-Yiadom KO, Xu X, Zhang XQ. Inhalable siRNA Nanoparticles for Enhanced Tumor-Targeting Treatment of KRAS-Mutant Non-Small-Cell Lung Cancer. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37354089 DOI: 10.1021/acsami.3c05007] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2023]
Abstract
Kirsten rat sarcoma (KRAS) is the most commonly mutated oncogene in lung cancers. Gene therapy is emerging as a promising cancer treatment modality; however, the systemic administration of gene therapy has been limited by inefficient delivery to the lungs and systemic toxicity. Herein, we report a noninvasive aerosol inhalation nanoparticle (NP) system, termed "siKRAS@GCLPP NPs," to treat KRAS-mutant non-small-cell lung cancer (NSCLC). The self-assembled siKRAS@GCLPP NPs are capable of maintaining structural integrity during nebulization, with preferential distribution within the tumor-bearing lung. Inhalable siKRAS@GCLPP NPs show not only significant tumor-targeting capability but also enhanced antitumor activity in an orthotopic mouse model of human KRAS-mutant NSCLC. The nebulized delivery of siKRAS@GCLPP NPs demonstrates potent knockdown of mutated KRAS in tumor-bearing lungs without causing any observable adverse effects, exhibiting a better biosafety profile than the systemic delivery approach. The results present a promising inhaled gene therapy approach for the treatment of KRAS-mutant NSCLC and other respiratory diseases.
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Affiliation(s)
- Guolin Zhao
- Shanghai Frontiers Science Center of Drug Target Identification and Delivery, School of School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- National Key Laboratory of Innovative Immunotherapy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - William Ho
- Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Jinxian Chu
- Shanghai Frontiers Science Center of Drug Target Identification and Delivery, School of School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- National Key Laboratory of Innovative Immunotherapy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiaojian Xiong
- Shanghai Frontiers Science Center of Drug Target Identification and Delivery, School of School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- National Key Laboratory of Innovative Immunotherapy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Bin Hu
- Shanghai Frontiers Science Center of Drug Target Identification and Delivery, School of School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- National Key Laboratory of Innovative Immunotherapy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Kofi Oti Boakye-Yiadom
- Shanghai Frontiers Science Center of Drug Target Identification and Delivery, School of School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- National Key Laboratory of Innovative Immunotherapy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiaoyang Xu
- Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Xue-Qing Zhang
- Shanghai Frontiers Science Center of Drug Target Identification and Delivery, School of School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- National Key Laboratory of Innovative Immunotherapy, Shanghai Jiao Tong University, Shanghai 200240, China
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3
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Yang M, Chen J, Chen Y, Lin W, Tang H, Fan Z, Wang L, She Y, Jin F, Zhang L, Sun W, Chen C. Scaffold-Free Tracheal Engineering via a Modular Strategy Based on Cartilage and Epithelium Sheets. Adv Healthc Mater 2023; 12:e2202022. [PMID: 36461102 DOI: 10.1002/adhm.202202022] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 11/11/2022] [Indexed: 12/04/2022]
Abstract
Tracheal defects lead to devastating problems, and practical clinical substitutes that have complex functional structures and can avoid adverse influences from exogenous bioscaffolds are lacking. Herein, a modular strategy for scaffold-free tracheal engineering is developed. A cartilage sheet (Cart-S) prepared by high-density culture is laminated and reshaped to construct a cartilage tube as the main load-bearing structure in which the chondrocytes exhibit a stable phenotype and secreted considerable cartilage-specific matrix, presenting a native-like grid arrangement. To further build a tracheal epithelial barrier, a temperature-sensitive technique is used to construct the monolayer epithelium sheet (Epi-S), in which the airway epithelial cells present integrated tight junctions, good transepithelial electrical resistance, and favorable ciliary differentiation capability. Epi-S can be integrally transferred to inner wall of cartilage tube, forming a scaffold-free complex tracheal substitute (SC-trachea). Interestingly, when Epi-S is attached to the cartilage surface, epithelium-specific gene expression is significantly enhanced. SC-trachea establishes abundant blood supply via heterotopic vascularization and then is pedicle transplanted for tracheal reconstruction, achieving 83.3% survival outcomes in rabbit models. Notably, the scaffold-free engineered trachea simultaneously satisfies sufficient mechanical properties and barrier function due to its matrix-rich cartilage structure and well-differentiated ciliated epithelium, demonstrating great clinical potential for long-segmental tracheal reconstruction.
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Affiliation(s)
- Minglei Yang
- Department of Cardiothoracic Surgery, Ningbo No.2 Hospital, Ningbo, Zhejiang, 315000, China
- Ningbo Institute of Life and Health Industry, University of Chinese Academy of Sciences, Ningbo, Zhejiang, 315020, China
| | - Jiafei Chen
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200092, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, 200433, China
- Department of Thoracic Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Yi Chen
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200092, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, 200433, China
| | - Weikang Lin
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200092, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, 200433, China
| | - Hai Tang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200092, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, 200433, China
| | - Ziwen Fan
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200092, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, 200433, China
| | - Long Wang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200092, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, 200433, China
| | - Yunlang She
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200092, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, 200433, China
| | - Feng Jin
- Shandong Province Chest Hospital, Shandong, 250011, China
| | - Lei Zhang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200092, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, 200433, China
| | - Weiyan Sun
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200092, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, 200433, China
| | - Chang Chen
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200092, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, 200433, China
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4
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Ziegler CGK, Allon SJ, Nyquist SK, Mbano IM, Miao VN, Tzouanas CN, Cao Y, Yousif AS, Bals J, Hauser BM, Feldman J, Muus C, Wadsworth MH, Kazer SW, Hughes TK, Doran B, Gatter GJ, Vukovic M, Taliaferro F, Mead BE, Guo Z, Wang JP, Gras D, Plaisant M, Ansari M, Angelidis I, Adler H, Sucre JMS, Taylor CJ, Lin B, Waghray A, Mitsialis V, Dwyer DF, Buchheit KM, Boyce JA, Barrett NA, Laidlaw TM, Carroll SL, Colonna L, Tkachev V, Peterson CW, Yu A, Zheng HB, Gideon HP, Winchell CG, Lin PL, Bingle CD, Snapper SB, Kropski JA, Theis FJ, Schiller HB, Zaragosi LE, Barbry P, Leslie A, Kiem HP, Flynn JL, Fortune SM, Berger B, Finberg RW, Kean LS, Garber M, Schmidt AG, Lingwood D, Shalek AK, Ordovas-Montanes J. SARS-CoV-2 Receptor ACE2 Is an Interferon-Stimulated Gene in Human Airway Epithelial Cells and Is Detected in Specific Cell Subsets across Tissues. Cell 2020; 181:1016-1035.e19. [PMID: 32413319 PMCID: PMC7252096 DOI: 10.1016/j.cell.2020.04.035] [Citation(s) in RCA: 1726] [Impact Index Per Article: 431.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/03/2020] [Accepted: 04/20/2020] [Indexed: 02/06/2023]
Abstract
There is pressing urgency to understand the pathogenesis of the severe acute respiratory syndrome coronavirus clade 2 (SARS-CoV-2), which causes the disease COVID-19. SARS-CoV-2 spike (S) protein binds angiotensin-converting enzyme 2 (ACE2), and in concert with host proteases, principally transmembrane serine protease 2 (TMPRSS2), promotes cellular entry. The cell subsets targeted by SARS-CoV-2 in host tissues and the factors that regulate ACE2 expression remain unknown. Here, we leverage human, non-human primate, and mouse single-cell RNA-sequencing (scRNA-seq) datasets across health and disease to uncover putative targets of SARS-CoV-2 among tissue-resident cell subsets. We identify ACE2 and TMPRSS2 co-expressing cells within lung type II pneumocytes, ileal absorptive enterocytes, and nasal goblet secretory cells. Strikingly, we discovered that ACE2 is a human interferon-stimulated gene (ISG) in vitro using airway epithelial cells and extend our findings to in vivo viral infections. Our data suggest that SARS-CoV-2 could exploit species-specific interferon-driven upregulation of ACE2, a tissue-protective mediator during lung injury, to enhance infection.
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Affiliation(s)
- Carly G K Ziegler
- Program in Health Sciences & Technology, Harvard Medical School & Massachusetts Institute of Technology, Boston, MA 02115, USA; Institute for Medical Engineering & Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Harvard Graduate Program in Biophysics, Harvard University, Cambridge, MA 02138, USA
| | - Samuel J Allon
- Institute for Medical Engineering & Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Sarah K Nyquist
- Institute for Medical Engineering & Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Program in Computational & Systems Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Computer Science & Artificial Intelligence Lab, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Ian M Mbano
- Africa Health Research Institute, Durban, South Africa; School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Vincent N Miao
- Program in Health Sciences & Technology, Harvard Medical School & Massachusetts Institute of Technology, Boston, MA 02115, USA; Institute for Medical Engineering & Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Constantine N Tzouanas
- Program in Health Sciences & Technology, Harvard Medical School & Massachusetts Institute of Technology, Boston, MA 02115, USA; Institute for Medical Engineering & Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Yuming Cao
- University of Massachusetts Medical School, Worcester, MA 01655, USA
| | - Ashraf S Yousif
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA
| | - Julia Bals
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA
| | - Blake M Hauser
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA; Department of Microbiology, Harvard Medical School, Boston, MA 02115, USA
| | - Jared Feldman
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA; Department of Microbiology, Harvard Medical School, Boston, MA 02115, USA; Program in Virology, Harvard Medical School, Boston, MA 02115, USA
| | - Christoph Muus
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; John A. Paulson School of Engineering & Applied Sciences, Harvard University, Cambridge, MA 02138, USA
| | - Marc H Wadsworth
- Institute for Medical Engineering & Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Samuel W Kazer
- Institute for Medical Engineering & Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Travis K Hughes
- Program in Health Sciences & Technology, Harvard Medical School & Massachusetts Institute of Technology, Boston, MA 02115, USA; Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Program in Immunology, Harvard Medical School, Boston, MA 02115, USA
| | - Benjamin Doran
- Institute for Medical Engineering & Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Boston, MA 02115, USA; Division of Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital, Boston, MA 02115, USA
| | - G James Gatter
- Institute for Medical Engineering & Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Marko Vukovic
- Institute for Medical Engineering & Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Faith Taliaferro
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Division of Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital, Boston, MA 02115, USA
| | - Benjamin E Mead
- Institute for Medical Engineering & Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Zhiru Guo
- University of Massachusetts Medical School, Worcester, MA 01655, USA
| | - Jennifer P Wang
- University of Massachusetts Medical School, Worcester, MA 01655, USA
| | - Delphine Gras
- Aix-Marseille University, INSERM, INRA, C2VN, Marseille, France
| | - Magali Plaisant
- Université Côte d'Azur, CNRS, IPMC, Sophia-Antipolis, France
| | - Meshal Ansari
- Comprehensive Pneumology Center & Institute of Lung Biology and Disease, Helmholtz Zentrum München, Munich, Germany; German Center for Lung Research, Munich, Germany; Institute of Computational Biology, Helmholtz Zentrum München, Munich, Germany
| | - Ilias Angelidis
- Comprehensive Pneumology Center & Institute of Lung Biology and Disease, Helmholtz Zentrum München, Munich, Germany; German Center for Lung Research, Munich, Germany
| | - Heiko Adler
- German Center for Lung Research, Munich, Germany; Research Unit Lung Repair and Regeneration, Helmholtz Zentrum München, Munich, Germany
| | - Jennifer M S Sucre
- Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Chase J Taylor
- Divison of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Brian Lin
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Avinash Waghray
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Vanessa Mitsialis
- Division of Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital, Boston, MA 02115, USA; Division of Gastroenterology, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Daniel F Dwyer
- Division of Allergy and Clinical Immunology, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Kathleen M Buchheit
- Division of Allergy and Clinical Immunology, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Joshua A Boyce
- Division of Allergy and Clinical Immunology, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Nora A Barrett
- Division of Allergy and Clinical Immunology, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Tanya M Laidlaw
- Division of Allergy and Clinical Immunology, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | | | | | - Victor Tkachev
- Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Boston, MA 02115, USA; Dana Farber Cancer Institute, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Christopher W Peterson
- Stem Cell & Gene Therapy Program, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; Department of Medicine, University of Washington, Seattle, WA 98195, USA
| | - Alison Yu
- Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Boston, MA 02115, USA; Division of Gastroenterology and Hepatology, Seattle Children's Hospital, Seattle, WA 98145, USA
| | - Hengqi Betty Zheng
- University of Washington, Seattle, WA 98195, USA; Division of Gastroenterology and Hepatology, Seattle Children's Hospital, Seattle, WA 98145, USA
| | - Hannah P Gideon
- Department of Microbiology & Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA; Center for Vaccine Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Caylin G Winchell
- Department of Microbiology & Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA; Center for Vaccine Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA; Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Philana Ling Lin
- Center for Vaccine Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA; UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, USA; Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA
| | - Colin D Bingle
- Department of Infection, Immunity & Cardiovascular Disease, The Medical School and The Florey Institute for Host Pathogen Interactions, University of Sheffield, Sheffield, S10 2TN, UK
| | - Scott B Snapper
- Division of Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital, Boston, MA 02115, USA; Division of Gastroenterology, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Jonathan A Kropski
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN 37240, USA; Department of Veterans Affairs Medical Center, Nashville, TN 37212, USA
| | - Fabian J Theis
- Institute of Computational Biology, Helmholtz Zentrum München, Munich, Germany
| | - Herbert B Schiller
- Comprehensive Pneumology Center & Institute of Lung Biology and Disease, Helmholtz Zentrum München, Munich, Germany; German Center for Lung Research, Munich, Germany
| | | | - Pascal Barbry
- Université Côte d'Azur, CNRS, IPMC, Sophia-Antipolis, France
| | - Alasdair Leslie
- Africa Health Research Institute, Durban, South Africa; School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa; Department of Infection & Immunity, University College London, London, UK
| | - Hans-Peter Kiem
- Stem Cell & Gene Therapy Program, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; Department of Medicine, University of Washington, Seattle, WA 98195, USA
| | - JoAnne L Flynn
- Department of Microbiology & Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA; Center for Vaccine Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Sarah M Fortune
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Bonnie Berger
- Computer Science & Artificial Intelligence Lab, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Department of Mathematics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Robert W Finberg
- University of Massachusetts Medical School, Worcester, MA 01655, USA
| | - Leslie S Kean
- Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Boston, MA 02115, USA; Dana Farber Cancer Institute, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Manuel Garber
- University of Massachusetts Medical School, Worcester, MA 01655, USA
| | - Aaron G Schmidt
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA; Department of Microbiology, Harvard Medical School, Boston, MA 02115, USA
| | - Daniel Lingwood
- Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA
| | - Alex K Shalek
- Program in Health Sciences & Technology, Harvard Medical School & Massachusetts Institute of Technology, Boston, MA 02115, USA; Institute for Medical Engineering & Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Harvard Graduate Program in Biophysics, Harvard University, Cambridge, MA 02138, USA; Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Program in Computational & Systems Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Program in Immunology, Harvard Medical School, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA.
| | - Jose Ordovas-Montanes
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Program in Immunology, Harvard Medical School, Boston, MA 02115, USA; Division of Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital, Boston, MA 02115, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA.
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5
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Brodskaia AV, Timin AS, Gorshkov AN, Muslimov AR, Bondarenko AB, Tarakanchikova YV, Zabrodskaya YA, Baranovskaya IL, Il'inskaja EV, Sakhenberg EI, Sukhorukov GB, Vasin AV. Inhibition of influenza A virus by mixed siRNAs, targeting the PA, NP, and NS genes, delivered by hybrid microcarriers. Antiviral Res 2018; 158:147-160. [PMID: 30092251 DOI: 10.1016/j.antiviral.2018.08.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 07/02/2018] [Accepted: 08/03/2018] [Indexed: 12/28/2022]
Abstract
In the present study, a highly effective carrier system has been developed for the delivery of antiviral siRNA mixtures. The developed hybrid microcarriers, made of biodegradable polymers and SiO2 nanostructures, more efficiently mediate cellular uptake of siRNA than commercially available liposome-based reagents and polyethyleneimine (PEI); they also demonstrate low in vitro toxicity and protection of siRNA from RNase degradation. A series of siRNA designs (targeting the most conserved regions of three influenza A virus (IAV) genes: NP, NS, and PA) were screened in vitro using RT-qPCR, ELISA analysis, and hemagglutination assay. Based on the results of screening, the three most effective siRNAs (PA-1630, NP-717, and NS-777) were selected for in situ encapsulation into hybrid microcarriers. It was revealed that pre-treatment of cells with a mixture of PA-1630, NP-717, and NS-777 siRNAs, delivered by hybrid microcarriers, provided stronger inhibition of viral M1 mRNA expression and control of NP protein level, after viral infection, than single pre-treatment by any of three encapsulated siRNAs used in the study. Moreover, the effective inhibition of replication in several IAV subtypes (H1N1, H1N1pdm, H5N2, and H7N9) using a cocktail of the three selected siRNAs, delivered by our hybrid capsules to the cells, was achieved. In conclusion, we have developed a proof-of-principle which shows that our hybrid microcarrier technology (utilizing a therapeutic siRNA cocktail) may represent a promising approach in anti-influenza therapy.
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Affiliation(s)
- Aleksandra V Brodskaia
- Research Institute of Influenza, Ministry of Healthcare of the Russian Federation, Prof. Popova str., 15/17, 197376, St. Petersburg, Russian Federation; Peter The Great St. Petersburg Polytechnic University, Polytechnicheskaya, 29, 195251, St. Petersburg, Russian Federation.
| | - Alexander S Timin
- RASA Center, National Research Tomsk Polytechnic University, Lenin Avenue, 30, 634050, Tomsk, Russian Federation; First I. P. Pavlov State Medical University of St. Petersburg, Lev Tolstoy str., 6/8, 197022, St. Petersburg, Russian Federation.
| | - Andrey N Gorshkov
- Research Institute of Influenza, Ministry of Healthcare of the Russian Federation, Prof. Popova str., 15/17, 197376, St. Petersburg, Russian Federation; Institute of Cytology, Russian Academy of Sciences, Tikhoretsky ave. 4, 194064, St. Petersburg, Russian Federation
| | - Albert R Muslimov
- Research Institute of Influenza, Ministry of Healthcare of the Russian Federation, Prof. Popova str., 15/17, 197376, St. Petersburg, Russian Federation; First I. P. Pavlov State Medical University of St. Petersburg, Lev Tolstoy str., 6/8, 197022, St. Petersburg, Russian Federation
| | - Andrei B Bondarenko
- Research Institute of Influenza, Ministry of Healthcare of the Russian Federation, Prof. Popova str., 15/17, 197376, St. Petersburg, Russian Federation; St. Petersburg State University, Vasilyevsky Island, Liniya 16-ya, 29, 199178, St. Petersburg, Russian Federation
| | - Yana V Tarakanchikova
- Saratov State University, Astrakhanskaya Street 83, 410012, Saratov, Russian Federation
| | - Yana A Zabrodskaya
- Research Institute of Influenza, Ministry of Healthcare of the Russian Federation, Prof. Popova str., 15/17, 197376, St. Petersburg, Russian Federation; Petersburg Nuclear Physics Institute in Honor of B. P. Konstantinov, National Research Center "Kurchatov Institute", 188300, Gatchina, Russian Federation
| | - Irina L Baranovskaya
- Research Institute of Influenza, Ministry of Healthcare of the Russian Federation, Prof. Popova str., 15/17, 197376, St. Petersburg, Russian Federation; Peter The Great St. Petersburg Polytechnic University, Polytechnicheskaya, 29, 195251, St. Petersburg, Russian Federation
| | - Eugenia V Il'inskaja
- Research Institute of Influenza, Ministry of Healthcare of the Russian Federation, Prof. Popova str., 15/17, 197376, St. Petersburg, Russian Federation
| | - Elena I Sakhenberg
- Research Institute of Influenza, Ministry of Healthcare of the Russian Federation, Prof. Popova str., 15/17, 197376, St. Petersburg, Russian Federation; Institute of Cytology, Russian Academy of Sciences, Tikhoretsky ave. 4, 194064, St. Petersburg, Russian Federation
| | - Gleb B Sukhorukov
- Peter The Great St. Petersburg Polytechnic University, Polytechnicheskaya, 29, 195251, St. Petersburg, Russian Federation; School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London, E1 4NS, United Kingdom
| | - Andrey V Vasin
- Research Institute of Influenza, Ministry of Healthcare of the Russian Federation, Prof. Popova str., 15/17, 197376, St. Petersburg, Russian Federation; Peter The Great St. Petersburg Polytechnic University, Polytechnicheskaya, 29, 195251, St. Petersburg, Russian Federation; St. Petersburg State Chemical Pharmaceutical Academy, Prof. Popova str., 14 A, 197376, St. Petersburg, Russian Federation.
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6
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Jiang D, Schaefer N, Chu HW. Air-Liquid Interface Culture of Human and Mouse Airway Epithelial Cells. Methods Mol Biol 2018; 1809:91-109. [PMID: 29987785 DOI: 10.1007/978-1-4939-8570-8_8] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Air-liquid interface culture enables airway epithelial cells to differentiate into a pseudostratified cell layer, consisting of ciliated cells, goblet/secretory cells, and basal cells (Ghio et al., Part Fibre Toxicol 10:25, 2013). This technique is critically important for in vitro studies of lung diseases such as asthma, chronic obstructive pulmonary disease, and cystic fibrosis, since differentiated airway epithelial cells are more representative of the in vivo lung environment than non-differentiated cells (Derichs et al., FASEB J 25:2325-2332, 2011; Hackett et al., Am J Respir Cell Mol Biol 45:1090-1100, 2011;Schneider et al., Am J Respir Crit Care Med 182: 332-340, 2010). Here we describe the process of isolating and expanding human and mouse airway epithelial cells, as well as differentiation of airway epithelial cells by air-liquid interface culture.
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Affiliation(s)
- Di Jiang
- Department of Medicine, National Jewish Health, Denver, CO, USA
| | | | - Hong Wei Chu
- Department of Medicine, National Jewish Health, Denver, CO, USA.
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7
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Tipirneni KE, Grayson JW, Zhang S, Cho DY, Skinner DF, Lim DJ, Mackey C, Tearney GJ, Rowe SM, Woodworth BA. Assessment of acquired mucociliary clearance defects using micro-optical coherence tomography. Int Forum Allergy Rhinol 2017; 7:920-925. [PMID: 28658531 DOI: 10.1002/alr.21975] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 05/01/2017] [Accepted: 05/23/2017] [Indexed: 12/26/2022]
Abstract
BACKGROUND Dehydration of airway surface liquid (ASL) disrupts normal mucociliary clearance (MCC) in sinonasal epithelium, which may lead to chronic rhinosinusitis (CRS). Abnormal chloride (Cl- ) transport is one such mechanism that contributes to this disorder and can be acquired secondary to environmental perturbations, such as hypoxia at the tissue surface. The objective of this study was to assess the technological feasibility of the novel micro-optical coherence tomography (μOCT) imaging technique for investigating acquired MCC defects in cultured human sinonasal epithelial (HSNE) cells. METHODS Primary HSNE cell cultures were subjected to a 1% oxygen environment for 12 hours to induce acquired cystic fibrosis transmembrane conductance regulator (CFTR) dysfunction. Ion transport characteristics were assessed with pharmacologic manipulation in Ussing chambers. ASL, periciliary fluid (PCL), and ciliary beat frequency (CBF) were evaluated using μOCT. RESULTS Amiloride-sensitive transport (ΔISC ) was greater in cultures exposed to hypoxia (hypoxia: -13.2 ± 0.6 μA/cm2 ; control: -6.5 ± 0.1 μA/cm2 ; p < 0.01), whereas CFTR-mediated anion transport was significantly diminished (hypoxia: 28.6 ± 0.3 μA/cm2 ; control: 36.2 ± 1.6 μA/cm2 ; p < 0.01), consistent with acquired CFTR dysfunction and sodium hyperabsorption. Hypoxia diminished all markers of airway surface function microanatomy as observed with μOCT, including ASL (hypoxia: 5.0 ± 0.4 μm; control: 9.0 ± 0.9 μm; p < 0.01) and PCL depth (hypoxia: 2.5 ± 0.1 μm; control: 4.8 ± 0.3 μm; p < 0.01), and CBF (hypoxia: 8.7 ± 0.3 Hz; control: 10.2 ± 0.3 Hz; p < 0.01). CONCLUSION Hypoxia-induced defects in epithelial anion transport in HSNE led to predictable effects on markers of MCC measured with novel μOCT imaging. This imaging method represents a technological leap forward and is feasible for assessing acquired defects impacting the airway surface.
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Affiliation(s)
- Kiranya E Tipirneni
- Department of Otolaryngology, University of Alabama at Birmingham, Birmingham, AL
| | - Jessica W Grayson
- Department of Otolaryngology, University of Alabama at Birmingham, Birmingham, AL
| | - Shaoyan Zhang
- Department of Otolaryngology, University of Alabama at Birmingham, Birmingham, AL.,Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL
| | - Do-Yeon Cho
- Department of Otolaryngology, University of Alabama at Birmingham, Birmingham, AL.,Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL
| | - Daniel F Skinner
- Department of Otolaryngology, University of Alabama at Birmingham, Birmingham, AL.,Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL
| | - Dong-Jin Lim
- Department of Otolaryngology, University of Alabama at Birmingham, Birmingham, AL.,Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL
| | - Calvin Mackey
- Department of Otolaryngology, University of Alabama at Birmingham, Birmingham, AL.,Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL
| | - Guillermo J Tearney
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA.,Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA
| | - Steven M Rowe
- Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL.,Department of Medicine , University of Alabama at Birmingham, Birmingham, AL
| | - Bradford A Woodworth
- Department of Otolaryngology, University of Alabama at Birmingham, Birmingham, AL.,Gregory Fleming James Cystic Fibrosis Research Center, University of Alabama at Birmingham, Birmingham, AL
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8
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Gilpin SE, Charest JM, Ren X, Tapias LF, Wu T, Evangelista-Leite D, Mathisen DJ, Ott HC. Regenerative potential of human airway stem cells in lung epithelial engineering. Biomaterials 2016; 108:111-9. [PMID: 27622532 DOI: 10.1016/j.biomaterials.2016.08.055] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 08/25/2016] [Accepted: 08/31/2016] [Indexed: 12/24/2022]
Abstract
Bio-engineered organs for transplantation may ultimately provide a personalized solution for end-stage organ failure, without the risk of rejection. Building upon the process of whole organ perfusion decellularization, we aimed to develop novel, translational methods for the recellularization and regeneration of transplantable lung constructs. We first isolated a proliferative KRT5(+)TP63(+) basal epithelial stem cell population from human lung tissue and demonstrated expansion capacity in conventional 2D culture. We then repopulated acellular rat scaffolds in ex vivo whole organ culture and observed continued cell proliferation, in combination with primary pulmonary endothelial cells. To show clinical scalability, and to test the regenerative capacity of the basal cell population in a human context, we then recellularized and cultured isolated human lung scaffolds under biomimetic conditions. Analysis of the regenerated tissue constructs confirmed cell viability and sustained metabolic activity over 7 days of culture. Tissue analysis revealed extensive recellularization with organized tissue architecture and morphology, and preserved basal epithelial cell phenotype. The recellularized lung constructs displayed dynamic compliance and rudimentary gas exchange capacity. Our results underline the regenerative potential of patient-derived human airway stem cells in lung tissue engineering. We anticipate these advances to have clinically relevant implications for whole lung bioengineering and ex vivo organ repair.
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Affiliation(s)
- Sarah E Gilpin
- Division of Thoracic Surgery, Department of Surgery, Massachusetts General Hospital, United States; Harvard Medical School, United States; Center for Regenerative Medicine, Massachusetts General Hospital, United States
| | - Jonathan M Charest
- Division of Thoracic Surgery, Department of Surgery, Massachusetts General Hospital, United States; Center for Regenerative Medicine, Massachusetts General Hospital, United States
| | - Xi Ren
- Division of Thoracic Surgery, Department of Surgery, Massachusetts General Hospital, United States; Harvard Medical School, United States; Center for Regenerative Medicine, Massachusetts General Hospital, United States
| | - Luis F Tapias
- Division of Thoracic Surgery, Department of Surgery, Massachusetts General Hospital, United States; Harvard Medical School, United States; Center for Regenerative Medicine, Massachusetts General Hospital, United States
| | - Tong Wu
- Division of Thoracic Surgery, Department of Surgery, Massachusetts General Hospital, United States; Harvard Medical School, United States; Center for Regenerative Medicine, Massachusetts General Hospital, United States
| | - Daniele Evangelista-Leite
- Division of Thoracic Surgery, Department of Surgery, Massachusetts General Hospital, United States; Center for Regenerative Medicine, Massachusetts General Hospital, United States
| | - Douglas J Mathisen
- Division of Thoracic Surgery, Department of Surgery, Massachusetts General Hospital, United States; Harvard Medical School, United States
| | - Harald C Ott
- Division of Thoracic Surgery, Department of Surgery, Massachusetts General Hospital, United States; Harvard Medical School, United States; Center for Regenerative Medicine, Massachusetts General Hospital, United States
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9
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Volovitz I, Shapira N, Ezer H, Gafni A, Lustgarten M, Alter T, Ben-Horin I, Barzilai O, Shahar T, Kanner A, Fried I, Veshchev I, Grossman R, Ram Z. A non-aggressive, highly efficient, enzymatic method for dissociation of human brain-tumors and brain-tissues to viable single-cells. BMC Neurosci 2016; 17:30. [PMID: 27251756 PMCID: PMC4888249 DOI: 10.1186/s12868-016-0262-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 05/11/2016] [Indexed: 01/10/2023] Open
Abstract
Background Conducting research on the molecular biology, immunology, and physiology of brain tumors (BTs) and primary brain tissues requires the use of viably dissociated single cells. Inadequate methods for tissue dissociation generate considerable loss in the quantity of single cells produced and in the produced cells’ viability. Improper dissociation may also demote the quality of data attained in functional and molecular assays due to the presence of large quantities cellular debris containing immune-activatory danger associated molecular patterns, and due to the increased quantities of degraded proteins and RNA. Results Over 40 resected BTs and non-tumorous brain tissue samples were dissociated into single cells by mechanical dissociation or by mechanical and enzymatic dissociation. The quality of dissociation was compared for all frequently used dissociation enzymes (collagenase, DNase, hyaluronidase, papain, dispase) and for neutral protease (NP) from Clostridium histolyticum. Single-cell-dissociated cell mixtures were evaluated for cellular viability and for the cell-mixture dissociation quality. Dissociation quality was graded by the quantity of subcellular debris, non-dissociated cell clumps, and DNA released from dead cells. Of all enzymes or enzyme combinations examined, NP (an enzyme previously not evaluated on brain tissues) produced dissociated cell mixtures with the highest mean cellular viability: 93 % in gliomas, 85 % in brain metastases, and 89 % in non-tumorous brain tissue. NP also produced cell mixtures with significantly less cellular debris than other enzymes tested. Dissociation using NP was non-aggressive over time—no changes in cell viability or dissociation quality were found when comparing 2-h dissociation at 37 °C to overnight dissociation at ambient temperature. Conclusions The use of NP allows for the most effective dissociation of viable single cells from human BTs or brain tissue. Its non-aggressive dissociative capacity may enable ambient-temperature shipping of tumor pieces in multi-center clinical trials, meanwhile being dissociated. As clinical grade NP is commercially available it can be easily integrated into cell-therapy clinical trials in neuro-oncology. The high quality viable cells produced may enable investigators to conduct more consistent research by avoiding the experimental artifacts associated with the presence dead cells or cellular debris. Electronic supplementary material The online version of this article (doi:10.1186/s12868-016-0262-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ilan Volovitz
- Cancer Immunotherapy Laboratory, Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Weizmann 6, Tel Aviv, Israel. .,Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Weizmann 6, Tel Aviv, Israel.
| | - Netanel Shapira
- Cancer Immunotherapy Laboratory, Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Weizmann 6, Tel Aviv, Israel
| | - Haim Ezer
- Department of Neurosurgery, Galilee Medical Center, Lohamei HaGeta'ot 5, Nahariya, Israel
| | - Aviv Gafni
- Cancer Immunotherapy Laboratory, Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Weizmann 6, Tel Aviv, Israel
| | - Merav Lustgarten
- Cancer Immunotherapy Laboratory, Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Weizmann 6, Tel Aviv, Israel
| | - Tal Alter
- Cancer Immunotherapy Laboratory, Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Weizmann 6, Tel Aviv, Israel
| | - Idan Ben-Horin
- Cancer Immunotherapy Laboratory, Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Weizmann 6, Tel Aviv, Israel
| | - Ori Barzilai
- Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Weizmann 6, Tel Aviv, Israel
| | - Tal Shahar
- Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Weizmann 6, Tel Aviv, Israel
| | - Andrew Kanner
- Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Weizmann 6, Tel Aviv, Israel
| | - Itzhak Fried
- Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Weizmann 6, Tel Aviv, Israel
| | - Igor Veshchev
- Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Weizmann 6, Tel Aviv, Israel
| | - Rachel Grossman
- Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Weizmann 6, Tel Aviv, Israel
| | - Zvi Ram
- Department of Neurosurgery, Tel Aviv Sourasky Medical Center, Weizmann 6, Tel Aviv, Israel
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Arsenic compromises conducting airway epithelial barrier properties in primary mouse and immortalized human cell cultures. PLoS One 2013; 8:e82970. [PMID: 24349408 PMCID: PMC3857810 DOI: 10.1371/journal.pone.0082970] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Accepted: 11/08/2013] [Indexed: 12/31/2022] Open
Abstract
Arsenic is a lung toxicant that can lead to respiratory illness through inhalation and ingestion, although the most common exposure is through contaminated drinking water. Lung effects reported from arsenic exposure include lung cancer and obstructive lung disease, as well as reductions in lung function and immune response. As part of their role in innate immune function, airway epithelial cells provide a barrier that protects underlying tissue from inhaled particulates, pathogens, and toxicants frequently found in inspired air. We evaluated the effects of a five-day exposure to environmentally relevant levels of arsenic {<4μM [~300 μg/L (ppb)] as NaAsO2} on airway epithelial barrier function and structure. In a primary mouse tracheal epithelial (MTE) cell model we found that both micromolar (3.9 μM) and submicromolar (0.8 μM) arsenic concentrations reduced transepithelial resistance, a measure of barrier function. Immunofluorescent staining of arsenic-treated MTE cells showed altered patterns of localization of the transmembrane tight junction proteins claudin (Cl) Cl-1, Cl-4, Cl-7 and occludin at cell-cell contacts when compared with untreated controls. To better quantify arsenic-induced changes in tight junction transmembrane proteins we conducted arsenic exposure experiments with an immortalized human bronchial epithelial cell line (16HBE14o-). We found that arsenic exposure significantly increased the protein expression of Cl-4 and occludin as well as the mRNA levels of Cl-4 and Cl-7 in these cells. Additionally, arsenic exposure resulted in altered phosphorylation of occludin. In summary, exposure to environmentally relevant levels of arsenic can alter both the function and structure of airway epithelial barrier constituents. These changes likely contribute to the observed arsenic-induced loss in basic innate immune defense and increased infection in the airway.
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11
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Choosing an appropriate infection model to study quorum sensing inhibition in Pseudomonas infections. Int J Mol Sci 2013; 14:19309-40. [PMID: 24065108 PMCID: PMC3794835 DOI: 10.3390/ijms140919309] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Revised: 09/13/2013] [Accepted: 09/17/2013] [Indexed: 02/07/2023] Open
Abstract
Bacteria, although considered for decades to be antisocial organisms whose sole purpose is to find nutrients and multiply are, in fact, highly communicative organisms. Referred to as quorum sensing, cell-to-cell communication mechanisms have been adopted by bacteria in order to co-ordinate their gene expression. By behaving as a community rather than as individuals, bacteria can simultaneously switch on their virulence factor production and establish successful infections in eukaryotes. Understanding pathogen-host interactions requires the use of infection models. As the use of rodents is limited, for ethical considerations and the high costs associated with their use, alternative models based on invertebrates have been developed. Invertebrate models have the benefits of low handling costs, limited space requirements and rapid generation of results. This review presents examples of such models available for studying the pathogenicity of the Gram-negative bacterium Pseudomonas aeruginosa. Quorum sensing interference, known as quorum quenching, suggests a promising disease-control strategy since quorum-quenching mechanisms appear to play important roles in microbe-microbe and host-pathogen interactions. Examples of natural and synthetic quorum sensing inhibitors and their potential as antimicrobials in Pseudomonas-related infections are discussed in the second part of this review.
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Shi HC, Lu D, Li HJ, Han S, Zeng YJ. In vitro isolation and cultivation of rabbit tracheal epithelial cells using tissue explant technique. In Vitro Cell Dev Biol Anim 2013; 49:245-9. [PMID: 23494268 DOI: 10.1007/s11626-012-9572-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2012] [Accepted: 11/18/2012] [Indexed: 12/16/2022]
Abstract
Epithelial cells from tracheal mucosa offer significant potential as a cell source in development of tissue-engineered trachea. The purpose of this study was to investigate and optimize a suitable culture system for tracheal epithelial cells, including the methods of primary culture, passage, identification, and cryopreservation. Epithelial cells were isolated from rabbit tracheal mucosa using tissue explant technique and were subjected to immunohistochemistry, immunofluorescence, and cryopreservation after purification. Epithelial cells reached confluency at 14-15 d. Immunohistochemical staining for cytokeratin showed brown yellow-positive cytoplasm and blue-counterstained nuclei, while immunofluorescence staining for cytokeratin showed green-positive cytoplasm and clear cell outline, indicating that the cultured cells had properties of epithelial cells. After recovery, epithelial cells exhibited high survival and viability. The results demonstrated that in vitro isolation and cultivation model was successfully established to provide high proliferative capacity, typical morphology and characteristics of tracheal epithelial cells from trachea mucosa by the use of the tissue explant technique.
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Affiliation(s)
- Hong-Can Shi
- College of Clinical Medicine, Yangzhou University, Yangzhou 225001, Jiangsu Province, China.
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13
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Sherwood CL, Lantz RC, Boitano S. Chronic arsenic exposure in nanomolar concentrations compromises wound response and intercellular signaling in airway epithelial cells. Toxicol Sci 2012. [PMID: 23204110 DOI: 10.1093/toxsci/kfs331] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Paracrine ATP signaling in the lung epithelium participates in a variety of innate immune functions, including mucociliary clearance, bactericide production, and as an initiating signal in wound repair. We evaluated the effects of chronic low-dose arsenic relevant to U.S. drinking water standards (i.e., 10 ppb [130nM]) on airway epithelial cells. Immortalized human bronchial epithelial cells (16HBE14o-) were exposed to 0, 130, or 330nM arsenic (as Na-arsenite) for 4-5 weeks and examined for wound repair efficiency and ATP-mediated Ca(2+) signaling. We found that chronic arsenic exposure at these low doses slows wound repair and reduces ATP-mediated Ca(2+) signaling. We further show that arsenic compromises ATP-mediated Ca(2+) signaling by altering both Ca(2+) release from intracellular stores (via metabotropic P2Y receptors) and Ca(2+) influx mechanisms (via ionotropic P2X receptors). To better model the effects of arsenic on ATP-mediated Ca(2+) signaling under conditions of natural exposure, we cultured tracheal epithelial cells obtained from mice exposed to control or 50 ppb Na-arsenite supplemented drinking water for 4 weeks. Tracheal epithelial cells from arsenic-exposed mice displayed reduced ATP-mediated Ca(2+) signaling dynamics similar to our in vitro chronic exposure. Our findings demonstrate that chronic arsenic exposure at levels that are commonly found in drinking water (i.e., 10-50 ppb) alters cellular mechanisms critical to airway innate immunity.
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Affiliation(s)
- Cara L Sherwood
- Arizona Respiratory Center, University of Arizona, Tucson, AZ, USA
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14
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Jiao J, Wang H, Meng N, Zhang L. Different cilia response to adenosine triphosphate or benzalkonium chloride treatment in mouse nasal and tracheal culture. ORL J Otorhinolaryngol Relat Spec 2012; 74:280-5. [PMID: 23154526 DOI: 10.1159/000343800] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Accepted: 09/21/2012] [Indexed: 11/19/2022]
Abstract
OBJECTIVES Our purpose was to compare the ciliary function between the upper and lower airway. METHODS Basal ciliary beat frequency (CBF) and changes in CBF in response to exogenous stimuli [adenosine triphosphate (ATP) or benzalkonium chloride (BAC)] of primary cultured mouse nasal and tracheal epithelial cells were quantified using digital microscopy combined with a beat-by-beat CBF analysis. RESULTS The basal CBF of the mouse tracheal culture was statistically higher than the nasal culture. Adding 10 or 100 µM ATP caused an increase of CBF in both mouse nasal and tracheal cultures; however, nasal culture induced a more robust increase of CBF than tracheal culture. Treatment with 0.001% BAC increased CBF within 2 min after treatment and then CBF gradually decreased; nasal and tracheal culture manifested a similar change in CBF. With a concentration of 0.01%, BAC induced a rapid and time-dependent decrease of CBF in both mouse nasal and tracheal cultures; however, tracheal culture showed a blunter response to this ciliotoxic agent, with the ciliary beating duration time distinguishably longer than in the nasal culture. CONCLUSION The inherent ciliary and physiological function is different in the upper and lower airway in mice.
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Affiliation(s)
- Jian Jiao
- Department of Otolaryngology, Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China
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15
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Bacsi A, Aguilera-Aguirre L, Szczesny B, Radak Z, Hazra TK, Sur S, Ba X, Boldogh I. Down-regulation of 8-oxoguanine DNA glycosylase 1 expression in the airway epithelium ameliorates allergic lung inflammation. DNA Repair (Amst) 2012; 12:18-26. [PMID: 23127499 DOI: 10.1016/j.dnarep.2012.10.002] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 10/07/2012] [Accepted: 10/09/2012] [Indexed: 01/31/2023]
Abstract
Allergic airway inflammation is characterized by increased expression of pro-inflammatory mediators, inflammatory cell infiltration, mucus hypersecretion, and airway hyperresponsiveness, in parallel with oxidative DNA base and strand damage, whose etiological role is not understood. Our goal was to establish the role of 8-oxoguanine (8-oxoG), a common oxidatively damaged base, and its repair by 8-oxoguanine DNA glycosylase 1 (Ogg1) in allergic airway inflammatory processes. Airway inflammation was induced by intranasally administered ragweed (Ambrosia artemisiifolia) pollen grain extract (RWPE) in sensitized BALB/c mice. We utilized siRNA technology to deplete Ogg1 from airway epithelium; 8-oxoG and DNA strand break levels were quantified by Comet assays. Inflammatory cell infiltration and epithelial methaplasia were determined histologically, mucus and cytokines levels biochemically and enhanced pause was used as the main index of airway hyperresponsiveness. Decreased Ogg1 expression and thereby 8-oxoG repair in the airway epithelium conveyed a lower inflammatory response after RWPE challenge of sensitized mice, as determined by expression of Th2 cytokines, eosinophilia, epithelial methaplasia, and airway hyperresponsiveness. In contrast, 8-oxoG repair in Ogg1-proficient airway epithelium was coupled to an increase in DNA single-strand break (SSB) levels and exacerbation of allergen challenge-dependent inflammation. Decreased expression of the Nei-like glycosylases Neil1 and Neil2 that preferentially excise ring-opened purines and 5-hydroxyuracil, respectively, did not alter the above parameters of allergic immune responses to RWPE. These results show that DNA SSBs formed during Ogg1-mediated repair of 8-oxoG augment antigen-driven allergic immune responses. A transient modulation of OGG1 expression/activity in airway epithelial cells could have clinical benefits.
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Affiliation(s)
- Attila Bacsi
- Department of Microbiology and Immunology, School of Medicine, University of Texas Medical Branch, Galveston, TX 77555, USA.
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Bellacen K, Kalay N, Ozeri E, Shahaf G, Lewis EC. Revascularization of pancreatic islet allografts is enhanced by α-1-antitrypsin under anti-inflammatory conditions. Cell Transplant 2012; 22:2119-33. [PMID: 23050776 DOI: 10.3727/096368912x657701] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Pancreatic islets are a highly vascularized entity, and their transplantation into diabetic individuals requires optimal revascularization. In addition, β-cells in islets are extremely sensitive to inflammation. α-1-Antitrypsin (AAT), a circulating serine-protease inhibitor that is available for clinical use as an affinity-purified human product, has been shown to protect islets from graft failure in mouse transplantation models and to achieve readily vascularized islet grafts. AAT is known to induce vascular endothelial growth factor (VEGF) expression and release, as well as protect from proteolytic cleavage of VEGF by elastase, promote viability of endothelial cells, and enhance migration of myocytes. Our aim was to examine whether AAT enhances vasculogenesis toward islet grafts. We employed Matrigel-islet plugs as means to introduce islets in an explantable isolated compartment and examined vessel formation, vessel maturation, and inflammatory profile of explants 9 days after implantation. Also, we examined primary epithelial cell grafts that were prepared from lungs of mice that are transgenic for human AAT. In addition, aortic ring sprouting assay was performed, and HUVEC tube formation assays were studied in the presence of AAT. Our findings indicate that islet grafts exhibit mature vessels in the presence of AAT, as demonstrated by morphology, as well as expression of endothelial CD31, smooth muscle actin (SMA), and von Willebrand factor (vWF). Epithelial cells that express human AAT achieved a similar positive outcome. Aortic ring sprouting was enhanced in AAT-treated cultures and also in cultures that contained primary epithelial cells from human AAT transgenic animals in the absence of added AAT. According to the tube formation assay, HUVECs exhibited superior responses in the presence of AAT. We conclude that vasculogenesis toward islet grafts is enhanced in the presence of AAT. Together with the remarkable safety profile of AAT, the study supports its use in the relevant clinical setups.
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Affiliation(s)
- Keren Bellacen
- Faculty of Health Sciences, Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, Beer-Sheva, Israel
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de Courcey F, Zholos AV, Atherton-Watson H, Williams MTS, Canning P, Danahay HL, Elborn JS, Ennis M. Development of primary human nasal epithelial cell cultures for the study of cystic fibrosis pathophysiology. Am J Physiol Cell Physiol 2012; 303:C1173-9. [PMID: 23015550 DOI: 10.1152/ajpcell.00384.2011] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Cultured primary epithelial cells are used to examine inflammation in cystic fibrosis (CF). We describe a new human model system using cultured nasal brushings. Nasal brushings were obtained from 16 F508del homozygous patients and 11 healthy controls. Cells were resuspended in airway epithelial growth medium and seeded onto collagen-coated flasks and membranes for use in patch-clamp, ion transport, and mediator release assays. Viable cultures were obtained with a 75% success rate from subjects with CF and 100% from control subjects. Amiloride-sensitive epithelial Na channel current of similar size was present in both cell types while forskolin-activated CF transmembrane conductance regulator current was lacking in CF cells. In Ussing chambers, cells from CF patients responded to UTP but not to forskolin. Spontaneous and cytomix-stimulated IL-8 release was similar (stimulated 29,448 ± 9,025 pg/ml; control 16,336 ± 3,308 pg/ml CF; means ± SE). Thus nasal epithelial cells from patients with CF can be grown from nasal brushings and used in electrophysiological and mediator release studies in CF research.
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Affiliation(s)
- F de Courcey
- Centre for Infection and Immunity, Queen’s University Belfast, Health Sciences Building, Belfast, UK
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18
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Lin L, Zhao X, Yan W, Qi W. Influence of Orai1 intervention on mouse airway epithelium reactions in vivo and in vitro. Ann Allergy Asthma Immunol 2012; 108:103-12. [PMID: 22289729 DOI: 10.1016/j.anai.2011.09.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Revised: 09/14/2011] [Accepted: 09/19/2011] [Indexed: 02/07/2023]
Abstract
BACKGROUND Orai1 is crucial for store-operated Ca2(+) entry and Ca2(+) release-activated Ca2(+) channel activities. However, little is known about its function in allergic diseases. OBJECTIVE To assess the influence of Orai1 intervention on mouse airway epithelium reactions in vivo and in vitro. METHODS We used immunohistochemical staining, enzyme-linked immunosorbent assay, and real-time reverse transcription-polymerase chain reaction to evaluate Orai1 expression in nasal and tracheal mucosa epithelium of nonsensitized, control, and 2-aminoethoxydiphenyl borate (2-APB)-treated groups in vivo and in vitro. In addition, we analyzed concentrations of interleukin 1β, interleukin 6, macrophage inflammatory protein 2, and tumor necrosis factor α in nasal lavage fluid, bronchoalveolar lavage fluid, and culture supernatant and their messenger RNAs in nasal and tracheal mucosa and cultured nasal and tracheal epithelium. RESULTS Administration of 2-APB into the nostrils suppressed Orai1 expression in nasal and tracheal mucosa of treated mice compared with that in control mice and restrained the mediators in nasal lavage fluid, bronchoalveolar lavage fluid, and airway mucosa of treated groups compared with those in control groups. Similarly, the 2-APB intervention also alleviated Orai1 and the production of the mediators in culture supernatant and cultured airway epithelium under allergic conditions. CONCLUSIONS Our results indicate that 2-APB could effectively ameliorate reactions of upper and lower airway epithelial cells in mice in allergic states in vivo and in vitro.
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Affiliation(s)
- Lin Lin
- Department of Otorhinolaryngology-Head and Neck Surgery, Huashan Hospital of Fudan University, Shanghai, China.
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19
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Jiao J, Wang H, Jin S, Fan E, Li Y, Han D, Zhang L. A comparative study of mouse nasal septal and turbinal epithelium for in vitro cell cultures. Int Forum Allergy Rhinol 2012; 2:241-7. [PMID: 22253207 DOI: 10.1002/alr.21013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2011] [Revised: 11/16/2011] [Accepted: 11/22/2011] [Indexed: 11/08/2022]
Abstract
BACKGROUND The small number of epithelial cells that can be isolated from mouse respiratory tract has limited its application to study of the airway. Our purpose in this work was to compare the potential of mouse nasal septal and turbinal epithelium for serving as a cell source for in vitro cell cultures. METHODS The distribution of ciliated epithelial cells in the mouse nasal cavity, and the surface area of the respiratory epithelium in the mouse nasal septum and turbinate were determined by β-tubulin IV immunohistochemistry. Ciliated epithelial cell density of native mouse nasal septum and turbinate, and the morphology of cultured mouse nasal septal and turbinal epithelial cells were examined by scanning electron microscopy (SEM) and β-tubulin IV and zona occludens (ZO)-1 dual-label fluorescent cytochemistry, respectively. Cilia reactivity to exogenous stimuli (adenosine triphosphate or benzalkonium chloride) in cultured nasal septal and turbinal epithelial cells was studied using high-speed digital microscopy. RESULTS The ciliated epithelial cell density of native nasal epithelium, the morphology and cell yield of in vitro cultured epithelial cells, and cilia reactivity to exogenous stimuli of mouse turbinate are comparable to that of the nasal septum. However, the respiratory epithelium surface area of mouse turbinate is significantly larger than that of the nasal septum. CONCLUSION Mouse turbinate may also serve as an ideal source of in vitro epithelial cell cultures. Both nasal septum and turbinate should be harvested to optimize animal use in the establishment of primary murine respiratory epithelial cultures.
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Affiliation(s)
- Jian Jiao
- Key Laboratory of Otolaryngology, Head and Neck Surgery (Ministry of Education), Beijing Institute of Otolaryngology, Beijing, China
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Zhong Z, Wan Y, Han J, Shi S, Zhang Z, Sun X. Improvement of adenoviral vector-mediated gene transfer to airway epithelia by folate-modified anionic liposomes. Int J Nanomedicine 2011; 6:1083-93. [PMID: 21698075 PMCID: PMC3118681 DOI: 10.2147/ijn.s19745] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Indexed: 11/23/2022] Open
Abstract
Despite remarkable progress in the development of both viral and nonviral gene delivery vectors for airway disease treatment, poor gene transfer efficiency to the airway epithelium is a major obstacle in clinical application. To take advantage of the unique features of viral and nonviral vectors, we have developed complexes of adenovirus vector and anionic liposomes (AL-Ad5) by the calcium-induced phase change method. In the current study, based on the fact that there are overexpressed folate receptors on the surface of airway epithelia, we further modified the AL-Ad5 complexes with folate (F-AL-Ad5) to improve the transduction ability of Ad5 in airway epithelia. The transduction efficiencies of the obtained F-AL-Ad5 and AL-Ad5 complexes were assessed in primary-cultured airway epithelia in vitro. Our results indicated that compared with naked adenovirus vector, both AL-Ad5 and F-AL-Ad5 could significantly enhance the gene transduction efficiency of adenovirus vector in primary-cultured airway epithelial cells. Moreover, the enhancement mediated by F-AL-Ad5 was more dramatic than that by AL-Ad5. These results suggested that F-AL-Ad5 may be a useful strategy to deliver therapeutic genes to the airway epithelia and is promising in clinical application.
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Affiliation(s)
- Zhirong Zhong
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, People's Republic of China
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Zhong Z, Han J, Wan Y, Zhang Z, Sun X. Anionic liposomes enhance and prolong adenovirus-mediated gene expression in airway epithelia in vitro and in vivo. Mol Pharm 2011; 8:673-82. [PMID: 21510701 DOI: 10.1021/mp100404q] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Adenoviral vector mediated gene therapy has received extensive attention in airway disease treatment. However, the lack of the requisite coxsackie-adenovirus receptor (CAR) on the apical surface of airway epithelium and the host immune response to adenoviruses limit their in vivo application. In our study, we developed for the first time a novel formulation composed of anionic liposomes and adenoviruses (AL-Ad5) using a calcium-induced phase change method. The obtained formulation was employed to enhance the transduction efficiency of airway gene delivery. Our results indicated that primary cultured airway epithelial cells infected by AL-Ad5 displayed higher LacZ gene expression compared to naked adenovirus. Importantly, AL-Ad5 significantly improved and prolonged LacZ gene expression in murine airway tissues when delivered in vivo by intratracheal instillation. Additionally, it was found that anionic liposomes provided immunoprotection to the adenovirus from neutralizing antibody, thus slowing down the elimination of Ad5 particles meanwhile reducing the inflammatory reaction caused by the Ad5 vector. These results suggested that the combination of anionic liposomes with adenovirus may be a useful strategy to deliver therapeutic genes into the airway epithelia and is promising in clinical application.
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Affiliation(s)
- Zhirong Zhong
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, P. R. China
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22
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Lam HC, Choi AMK, Ryter SW. Isolation of mouse respiratory epithelial cells and exposure to experimental cigarette smoke at air liquid interface. J Vis Exp 2011:2513. [PMID: 21372793 DOI: 10.3791/2513] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Pulmonary epithelial cells can be isolated from the respiratory tract of mice and cultured at air-liquid interface (ALI) as a model of differentiated respiratory epithelium. A protocol is described for isolating and exposing these cells to mainstream cigarette smoke (CS), in order to study epithelial cell responses to CS exposure. The protocol consists of three parts: the isolation of airway epithelial cells from mouse trachea, the culturing of these cells at air-liquid interface (ALI) as fully differentiated epithelial cells, and the delivery of calibrated mainstream CS to these cells in culture. The ALI culture system allows the culture of respiratory epithelia under conditions that more closely resemble their physiological setting than ordinary liquid culture systems. The study of molecular and lung cellular responses to CS exposure is a critical component of understanding the impact of environmental air pollution on human health. Research findings in this area may ultimately contribute towards understanding the etiology of chronic obstructive pulmonary disease (COPD), and other tobacco-related diseases, which represent major global health problems.
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Affiliation(s)
- Hilaire C Lam
- Department of Medicine, Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, USA
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Petersen TH, Calle EA, Colehour MB, Niklason LE. Bioreactor for the long-term culture of lung tissue. Cell Transplant 2010; 20:1117-26. [PMID: 21092411 DOI: 10.3727/096368910x544933] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
In this article we describe the design and validation of a bioreactor for the in vitro culture of whole rodent lung tissue. Many current systems only enable large segments of lung tissue to be studied ex vivo for up to a few hours in the laboratory. This limitation restricts the study of pulmonary biology in controlled laboratory settings, and also impacts the ability to reliably culture engineered lung tissues in the laboratory. Therefore, we designed, built, and validated a bioreactor intended to provide sufficient nutrient supply and mechanical stimulation to support cell survival and differentiation in cultured lung tissue. We also studied the effects of perfusion and ventilation on pulmonary cell survival and maintenance of cell differentiation state. The final bioreactor design described herein is capable of supporting the culture of whole native lung tissue for up to 1 week in the laboratory, and offers promise in the study of pulmonary biology and the development of engineered lung tissues in the laboratory.
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Affiliation(s)
- Thomas H Petersen
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
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Khoufache K, Cabaret O, Farrugia C, Rivollet D, Alliot A, Allaire E, Cordonnier C, Bretagne S, Botterel F. Primary in vitro culture of porcine tracheal epithelial cells in an air-liquid interface as a model to study airway epithelium and Aspergillus fumigatus interactions. Med Mycol 2010; 48:1049-55. [PMID: 20608777 DOI: 10.3109/13693786.2010.496119] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Since the airway epithelium is the first tissue encountered by airborne fungal spores, specific models are needed to study this interaction. We developed such a model using primary porcine tracheal epithelial cells (PTEC) as a possible alternative to the use of primary human cells. PTEC were obtained from pigs and were cultivated in an air-liquid interface. Fluorescent brightener was employed to quantify the internalization of Aspergillus fumigatus conidia. Potential differences (Vt) and transepithelial resistances (Rt) after challenge with the mycotoxin, verruculogen, were studied. Primers for porcine inflammatory mediator genes IL-8, TNF-alpha, and GM-CSF were designed for a quantitative real-time PCR procedure to study cellular responses to challenges with A. fumigatus conidia. TEM showed the differentiation of ciliated cells and the PTEC ability to internalize conidia. The internalization rate was 21.9 ± 1.4% after 8 h of incubation. Verruculogen (10(-6) M) significantly increased Vt without having an effect on the Rt. Exposure of PTEC to live A. fumigatus conidia for 24 h induced a 10- to 40-fold increase in the mRNA levels of inflammatory mediator genes. PTEC behave similarly to human cells and are therefore a suitable alternative to human cells for studying interaction between airway epithelium and A. fumigatus.
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Identification and characterization of β-adrenergic receptors in isolated primary equine tracheal epithelial cells. Pulm Pharmacol Ther 2010; 24:174-81. [PMID: 20601048 DOI: 10.1016/j.pupt.2010.06.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2009] [Revised: 06/04/2010] [Accepted: 06/18/2010] [Indexed: 11/23/2022]
Abstract
Responses and functions of airway epithelial cells are stimulated by β₂-agonists via the β₂-adrenergic receptors (β₂-ARs)-G(s)-protein-cAMP-system, thus, affecting airway inflammation such as in asthma and equine recurrent airway obstruction (RAO). Though horses can be used as large animal model for human asthma, evaluation of the expression and functions of the β-AR system in primary equine airway epithelial cells has not been yet carried out. Thus, for the first time, we determined the β-AR density and subtype distribution by [¹²⁵I]-iodocyanopindolol (ICYP) binding, examined β-AR function by cAMP assay as well as their expression by western blot analysis and immunocytochemical staining in primary equine tracheal epithelial cells (ETEC). Cells were collected from 19 horses and cultured subsequently. The specific ICYP binding was saturable and of high affinity: in freshly isolated cells the receptor density (B(max)) and ICYP affinity (K(D)) for β-ARs were 12727 ± 883 binding sites/cell and 31.78 ± 6.57 pM, respectively, and in cultured ETEC 3730 ± 212 binding sites/cell and 15.26 ± 3.37 pM, respectively. The β-AR subtype assessed by β₁-selective (CGP 20712A) and β₂-selective (ICI 118.551) adrenergic receptor antagonists demonstrated that the β₂-AR subtype predominated (>95%) in both cell populations (p < 0.001). The β-AR agonists increased cAMP formation with a rank order of potency: isoproterenol > epinephrine > norepinephrine. ICI 118.551 (100 nM) significantly blocked (p < 0.05) isoproterenol-induced cAMP accumulation but not CGP 20712A (300 nM). Western blot analyses and immunocytochemical staining further indicated the expression of the β(2)-AR subtype in both cell preparations. Our data indicate that in acutely dissociated and primary cultured ETEC the β(2)-AR-AC system is expressed, but varies considerably between the two preparations.
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Holder E, Stevenson B, Farley R, Hilliard T, Wodehouse T, Somerton L, Larsen M, O'Donoghue J, Coles RL, Scheule RK, Cheng SH, Gill DR, Hyde SC, Griesenbach U, Alton EWFW, Porteous DJ, Boyd AC. Detection of CFTR transgene mRNA expression in respiratory epithelium isolated from the murine nasal cavity. J Gene Med 2010; 12:55-63. [PMID: 19937989 DOI: 10.1002/jgm.1413] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND When assessing the efficacy of gene transfer agents (GTAs) for cystic fibrosis (CF) gene therapy, we routinely evaluate gene transfer in the mouse nose and measure transfection efficiency by assessing transgene-specific mRNA using the real-time (TaqMan) quantitative reverse transcriptase-polymerase chain reaction. TaqMan is traditionally used to quantify expression in whole tissue homogenates, which in the nose would contain many cells types, including respiratory and olfactory epithelium. Only the respiratory epithelium is a satisfactory model for human airway epithelium and therefore CFTR gene transfer should be specifically assessed in respiratory epithelial cells (RECs). METHODS We have compared laser microdissection, pronase digestion and nasal brushing for: (i) the ability to enrich RECs from the wild-type mouse nose and (ii) the length of time to perform the procedure. Using TaqMan, we subsequently assessed gene transfer in enriched RECs after nasal perfusion of GL67A/pCF1-CFTR complexes in a CF mouse model. RESULTS Laser microdissection successfully isolated RECs; however, time-consuming sample preparation made this technique unsuitable for high-throughput studies. Pronase digestion was sufficiently rapid but only yielded 19% (range = 13%) RECs (n = 6). The nasal brushing method was superior, yielding 92% (range = 15%) RECs (n = 8) and was equally effective in CF knockout mice (91%, range = 14%, n = 10). Importantly, gene transfer was detectable in brushed RECs from 70% of perfused mice and the number of vector-specific transcripts was comparable to 3.5% of endogenous wild-type Cftr levels. CONCLUSIONS Isolation of RECs by brushing allows accurate assessment of GTA transfection efficiency in an experimental system that is relevant for CF gene therapy.
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Affiliation(s)
- Emma Holder
- Medical Genetics Section, Molecular Medicine Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
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Zaas DW, Swan ZD, Brown BJ, Li G, Randell SH, Degan S, Sunday ME, Wright JR, Abraham SN. Counteracting signaling activities in lipid rafts associated with the invasion of lung epithelial cells by Pseudomonas aeruginosa. J Biol Chem 2009; 284:9955-64. [PMID: 19211560 DOI: 10.1074/jbc.m808629200] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Pseudomonas aeruginosa has the capacity to invade lung epithelial cells by co-opting the intrinsic endocytic properties of lipid rafts, which are rich in cholesterol, sphingolipids, and proteins, such as caveolin-1 and -2. We compared intratracheal Pseudomonas infection in wild type and caveolin-deficient mice to investigate the role of caveolin proteins in the pathogenesis of Pseudomonas pneumonia. Unlike wild type mice, which succumb to pneumonia, caveolin-deficient mice are resistant to Pseudomonas. We observed that Pseudomonas invasion of lung epithelial cells is dependent on caveolin-2 but not caveolin-1. Phosphorylation of caveolin-2 by Src family kinases is an essential event for Pseudomonas invasion. Our studies also reveal the existence of a distinct signaling mechanism in lung epithelial cells mediated by COOH-terminal Src kinase (Csk) that negatively regulates Pseudomonas invasion. Csk migrates to lipid raft domains, where it decreases phosphorylation of caveolin-2 by inactivating c-Src. Whereas Pseudomonas co-opts the endocytic properties of caveolin-2 for invasion, there also exists in these cells an intrinsic Csk-dependent cellular defense mechanism aimed at impairing this activity. The success of Pseudomonas in co-opting lipid raft-mediated endocytosis to invade lung epithelial cells may depend on the relative strengths of these counteracting signaling activities.
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Affiliation(s)
- David W Zaas
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Duke University Medical Center, Durham, North Carolina 27710, USA.
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Kukavica-Ibrulj I, Levesque RC. Animal models of chronic lung infection with Pseudomonas aeruginosa: useful tools for cystic fibrosis studies. Lab Anim 2008; 42:389-412. [PMID: 18782827 DOI: 10.1258/la.2007.06014e] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Cystic fibrosis (CF) is caused by a defect in the transmembrane conductance regulator (CFTR) protein that functions as a chloride channel. Dysfunction of the CFTR protein results in salty sweat, pancreatic insufficiency, intestinal obstruction, male infertility and severe pulmonary disease. In most patients with CF life expectancy is limited due to a progressive loss of functional lung tissue. Early in life a persistent neutrophylic inflammation can be demonstrated in the airways. The cause of this inflammation, the role of CFTR and the cause of lung morbidity by different CF-specific bacteria, mostly Pseudomonas aeruginosa, are not well understood. The lack of an appropriate animal model with multi-organ pathology having the characteristics of the human form of CF has hampered our understanding of the pathobiology and chronic lung infections of the disease for many years. This review summarizes the main characteristics of CF and focuses on several available animal models that have been frequently used in CF research. A better understanding of the chronic lung infection caused particularly by P. aeruginosa, the pathophysiology of lung inflammation and the pathogenesis of lung disease necessitates animal models to understand CF, and to develop and improve treatment.
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Affiliation(s)
- I Kukavica-Ibrulj
- Centre de Recherche sur la Fonction, Structure et Ingénierie des Protéines, Pavillon Charles-Eugène Marchand, Biologie Médicale, Faculté de Médecine, Université Laval, Québec G1K 7P4, Canada
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Abstract
CF is an inherited autosomal recessive disease whose lethality arises from malfunction of CFTR, a single chloride (Cl-) ion channel protein. CF patients harbor mutations in the CFTR gene that lead to misfolding of the resulting CFTR protein, rendering it inactive and mislocalized. Hundreds of CF-related mutations have been identified, many of which abrogate CFTR folding in the endoplasmic reticulum (ER). More than 70% of patients harbor the ΔF508 CFTR mutation that causes misfolding of the CFTR proteins. Consequently, mutant CFTR is unable to reach the apical plasma membrane of epithelial cells that line the lungs and gut, and is instead targeted for degradation by the UPS. Proteins located in both the cytoplasm and ER membrane are believed to identify misfolded CFTR for UPS-mediated degradation. The aberrantly folded CFTR protein then undergoes polyubiquitylation, carried out by an E1-E2-E3 ubiquitin ligase system, leading to degradation by the 26S proteasome. This ubiquitin-dependent loss of misfolded CFTR protein can be inhibited by the application of ‘corrector’ drugs that aid CFTR folding, shielding it from the UPS machinery. Corrector molecules elevate cellular CFTR protein levels by protecting the protein from degradation and aiding folding, promoting its maturation and localization to the apical plasma membrane. Combinatory application of corrector drugs with activator molecules that enhance CFTR Cl- ion channel activity offers significant potential for treatment of CF patients. Publication history: Republished from Current BioData's Targeted Proteins database (TPdb; ).
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Affiliation(s)
- Emma L Turnbull
- Department of Cell and Developmental Biology, 526 Taylor Hall, Mason Farm Road, UNC-Chapel Hill School of Medicine, University of North Carolina, Chapel Hill, North Carolina 27599, USA.
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Chase MA, Wheeler DS, Lierl KM, Hughes VS, Wong HR, Page K. Hsp72 induces inflammation and regulates cytokine production in airway epithelium through a TLR4- and NF-kappaB-dependent mechanism. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2007; 179:6318-24. [PMID: 17947709 PMCID: PMC2755189 DOI: 10.4049/jimmunol.179.9.6318] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Heat shock proteins are generally regarded as intracellular proteins acting as molecular chaperones; however, Hsp72 is also detected in the extracellular compartment. Hsp72 has been identified in the bronchoalveolar lavage fluid (BALF) of patients with acute lung injury. To address whether Hsp72 directly activated airway epithelium, human bronchial epithelial cells (16HBE14o-) were treated with recombinant Hsp72. Hsp72 induced a dose-dependent increase in IL-8 expression, which was inhibited by the NF-kappaB inhibitor parthenolide. Hsp72 induced activation of NF-kappaB, as evidenced by NF-kappaB trans-activation and by p65 RelA and p50 NF-kappaB1 binding to DNA. Endotoxin contamination of the Hsp72 preparation was not responsible for these effects. Next, BALB/c mice were challenged with a single intratracheal inhalation of Hsp72 and killed 4 h later. Hsp72 induced significant up-regulation of KC, TNF-alpha, neutrophil recruitment, and myeloperoxidase in the BALF. A similar challenge with Hsp72 in TLR4 mutant mice did not stimulate the inflammatory response, stressing the importance of TLR4 in Hsp72-mediated lung inflammation. Last, cultured mouse tracheal epithelial cells (MTEC) from BALB/c and TLR4 mutant and wild-type mice were treated ex vivo with Hsp72. Hsp72 induced a significant increase in KC expression from BALB/c and wild-type MTEC in an NF-kappaB-dependent manner; however, TLR4 mutant MTEC had minimal cytokine release. Taken together, these data suggest that Hsp72 is released and biologically active in the BALF and can regulate airway epithelial cell cytokine expression in a TLR4 and NF-kappaB-dependent mechanism.
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Affiliation(s)
- Margaret A. Chase
- Division of Critical Care Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229
| | - Derek S. Wheeler
- Division of Critical Care Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229
- Department of Pediatrics, University of Cincinnati, Cincinnati OH 45267
| | - Kristin M. Lierl
- Division of Critical Care Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229
| | - Valerie S. Hughes
- Division of Critical Care Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229
| | - Hector R. Wong
- Division of Critical Care Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229
- Department of Pediatrics, University of Cincinnati, Cincinnati OH 45267
| | - Kristen Page
- Department of Pediatrics, University of Cincinnati, Cincinnati OH 45267
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Antunes MB, Woodworth BA, Bhargave G, Xiong G, Aguilar JL, Ratner AJ, Kreindler JL, Rubenstein RC, Cohen NA. Murine nasal septa for respiratory epithelial air-liquid interface cultures. Biotechniques 2007; 43:195-6, 198, 200 passim. [PMID: 17824387 DOI: 10.2144/000112531] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Air-liquid interface models using murine tracheal respiratory epithelium have revolutionized the in vitro study of pulmonary diseases. This model is often impractical because of the small number of respiratory epithelial cells that can be isolated from the mouse trachea. We describe a simple technique to harvest the murine nasal septum and grow the epithelial cells in an air-liquid interface. The degree of ciliation of mouse trachea, nasal septum, and their respective cultured epithelium at an air-liquid interface were compared by scanning electron microscopy (SEM). Immunocytochemistry for type IV beta-tubulin and zona occludens-1 (Zo-1) are performed to determine differentiation and confluence, respectively. To rule out contamination with olfactory epithelium (OE), immunocytochemistry for olfactory marker protein (OMP) was performed. Transepithelial resistance and potential measurements were determined using a modified vertical Ussing chamber SEM reveals approximately 90% ciliated respiratory epithelium in the nasal septum as compared with 35% in the mouse trachea. The septal air-liquid interface culture demonstrates comparable ciliated respiratory epithelium to the nasal septum. Immunocytochemistry demonstrates an intact monolayer and diffuse differentiated ciliated epithelium. These cultures exhibit a transepithelial resistance and potential confirming a confluent monolayer with electrically active airway epitheliumn containing both a sodium-absorptive pathway and a chloride-secretory pathway. To increase the yield of respiratory epithelial cells harvested from mice, we have found the nasal septum is a superior source when compared with the trachea. The nasal septum increases the yield of respiratory epithelial cells up to 8-fold.
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Sarafian TA, Habib N, Oldham M, Seeram N, Lee RP, Lin L, Tashkin DP, Roth MD. Inhaled marijuana smoke disrupts mitochondrial energetics in pulmonary epithelial cells in vivo. Am J Physiol Lung Cell Mol Physiol 2006; 290:L1202-9. [PMID: 16414979 DOI: 10.1152/ajplung.00371.2005] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Habitual marijuana smoking is associated with inflammation and atypia of airway epithelium accompanied by symptoms of chronic bronchitis. We hypothesized that Delta(9)-tetrahydrocannabinol (THC), the primary psychoactive component of marijuana, might contribute to these findings by impairing cellular energetics and mitochondrial function. To test this hypothesis, we examined particulate smoke extracts from marijuana cigarettes, tobacco cigarettes, and placebo marijuana (0% THC) cigarettes for their effects on the mitochondrial function of A549 cells in vitro. Only extracts prepared from marijuana cigarettes altered mitochondrial staining by the potentiometric probe JC-1. With the use of a cross-flow, nose-only inhalation system, rats were then exposed for 20 min to whole marijuana smoke and examined for its effects on airway epithelial cells. Inhalation of marijuana smoke produced lung tissue concentrations of THC that were 8-10 times higher than those measured in blood (75 +/- 38 ng/g wet wt tissue vs. 9.2 +/- 2.0 ng/ml), suggesting high local exposure. Intratracheal infusion of JC-1 immediately following marijuana smoke exposure revealed a diffuse decrease in lung cell JC-1 red fluorescence compared with tissue from unexposed or placebo smoke-exposed rats. Exposure to marijuana smoke in vivo also decreased JC-1 red fluorescence (54% decrease, P < 0.01) and ATP levels (75% decrease, P < 0.01) in single-cell preparations of tracheal epithelial cells. These results suggest that inhalation of marijuana smoke has deleterious effects on airway epithelial cell energetics that may contribute to the adverse pulmonary consequences of marijuana smoking.
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Affiliation(s)
- Theodore A Sarafian
- Division of Pulmonary and Critical Care, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095-1690, USA.
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Liu X, Yan Z, Luo M, Engelhardt JF. Species-specific differences in mouse and human airway epithelial biology of recombinant adeno-associated virus transduction. Am J Respir Cell Mol Biol 2006; 34:56-64. [PMID: 16195538 PMCID: PMC1752084 DOI: 10.1165/rcmb.2005-0189oc] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2005] [Accepted: 09/22/2005] [Indexed: 11/24/2022] Open
Abstract
Differences in airway epithelial biology between mice and humans have presented challenges to evaluating gene therapies for cystic fibrosis (CF) using murine models. In this context, recombinant adeno-associated virus (rAAV) type 2 and rAAV5 vectors have very different transduction efficiencies in human air-liquid interface (ALI) airway epithelia (rAAV2 approximately = rAAV5) as compared with mouse lung (rAAV5 >> rAAV2). It is unclear if these differences are due to species-specific airway biology or limitations of ALI cultures to reproduce in vivo airway biology. To this end, we compared rAAV2 and rAAV5 transduction biology in mouse and human ALI cultures, and investigated the utility of murine deltaF508 cystic fibrosis transmembrane conductance regulator (CFTR) ALI epithelia to study CFTR complementation. Our results demonstrate that mouse ALI epithelia retain in vivo preferences for rAAV serotype transduction from the apical membrane (rAAV5 >> rAAV2) not seen in human epithelia (rAAV2 approximately = rAAV5). Viral binding of rAAV2 and rAAV5 to the apical surface of mouse ALI airway epithelia was not significantly different, and proteasome-modulating agents significantly enhanced rAAV2 transduction to a level equivalent to that of rAAV5 in the presence of these agents, suggesting that the ubiquitin/proteasome pathway represents a more significant intracellular block for rAAV2 transduction of mouse airway epithelia. Interestingly, cAMP-inducible chloride currents were enhanced in deltaF508CFTR mouse ALI cultures, making this model incompatible with CFTR complementation studies. These studies emphasize species-specific differences in airway biology between mice and humans that significantly influence the use of mice as surrogate models for rAAV transduction and gene therapy for CF.
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Affiliation(s)
- Xiaoming Liu
- Department of Anatomy and Cell Biology, University of Iowa College of Medicine, 51 Newton Road, Iowa City, IA 52242, USA
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Grubb BR, Rogers TD, Diggs PC, Boucher RC, Ostrowski LE. Culture of murine nasal epithelia: model for cystic fibrosis. Am J Physiol Lung Cell Mol Physiol 2005; 290:L270-7. [PMID: 16155086 DOI: 10.1152/ajplung.00249.2005] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The ion transport defects reported for human cystic fibrosis (CF) airways are reproduced in nasal epithelia of the CF mouse. Although this tissue has been studied in vivo using the nasal potential difference technique and as a native tissue mounted in the Ussing chamber, little information is available on cultured murine nasal epithelia. We have developed a polarized cell culture model of primary murine nasal epithelia in which the CF tissue exhibits not only a defect in cAMP-mediated Cl- secretion but also the Na+ hyperabsorption and upregulation of the Ca2+-activated Cl- conductance observed in human airways. Both the wild-type and CF cultures were constituted predominantly of undifferentiated cuboidal columnar cells, with most cultures exhibiting a small number of ciliated cells. Although no goblet cells were observed, RT-PCR demonstrated the expression of Muc5ac RNA after approximately 22 days in culture. The CF tissue exhibited an adherent layer of mucus similar to the mucus plaques reported in the distal airways of human CF patients. Furthermore, we found that treatment of CF preparations with a Na+ channel blocker for 7 days prevented formation of mucus adherent to epithelial surfaces. The cultured murine nasal epithelial preparation should be an excellent model tissue for gene transfer studies and pharmacological studies of Na+ channel blockers and mucolytic agents as well as for further characterization of CF ion transport defects. Culture of nasal epithelia from DeltaF508 mice will be particularly useful in testing drugs that allow DeltaF508 CFTR to traffic to the membrane.
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Affiliation(s)
- B R Grubb
- Cystic Fibrosis/Pulmonary Research and Treatment Center, 7011 Thurston-Bowles Bldg., CB#7248, Univ. of North Carolina, Chapel Hill, NC 27599-7248, USA.
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Mendes F, Doucet L, Hinzpeter A, Férec C, Lipecka J, Fritsch J, Edelman A, Jorna H, Willemsen R, Bot AGM, De Jonge HR, Hinnrasky J, Castillon N, Taouil K, Puchelle E, Penque D, Amaral MD. Immunohistochemistry of CFTR in native tissues and primary epithelial cell cultures. J Cyst Fibros 2004; 3 Suppl 2:37-41. [PMID: 15463923 DOI: 10.1016/j.jcf.2004.05.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Studies on CFTR protein expression and localization in native tissues or in primary cultures of human epithelial cells are scarce due to the intrinsic instability of this protein, its low expression in most tissues and also to technical difficulties. However, such data are of the highest importance to understand the pathophysiology of CF. The purpose of this article is to outline several assays for the characterization of primary epithelial cultures and to review different CFTR immunostaining protocols.
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Affiliation(s)
- Filipa Mendes
- Center of Human Genetics, National Institute of Health Dr. Ricardo Jorge, Av Padre Cruz, 1649-016, Lisboa, Portugal.
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General introduction to section B: cell biology and histology. J Cyst Fibros 2004. [DOI: 10.1016/j.jcf.2004.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Klink D, Schindelhauer D, Laner A, Tucker T, Bebok Z, Schwiebert EM, Boyd AC, Scholte BJ. Gene delivery systems—gene therapy vectors for cystic fibrosis. J Cyst Fibros 2004; 3 Suppl 2:203-12. [PMID: 15463959 DOI: 10.1016/j.jcf.2004.05.042] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Gene delivery systems (GDS) play a central role in the development of gene therapy strategies for Cystic Fibrosis (CF). Further, these systems are important tools in studies with cultured cells and in animal models. In this review, we describe the properties of several viral and synthetic gene delivery systems, and evaluate their possible application in gene therapy of CF. While many gene delivery systems give satisfactory results in cultured or animal studies, none of these systems has been shown to fulfil all the requirements of safety and efficacy for use in CF patients. The intact airway epithelium, the most important target in CF gene therapy, proves to be well protected against invading vector systems.
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Affiliation(s)
- Daniel Klink
- Department of Cell Biology, Erasmus MC, Erasmus University, P.O. Box 1738, Rotterdam DR 3000, The Netherlands
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