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Kreber L, Liu L, Dharmadhikari S, Tan ZH, Chan C, Huddle J, Hussein Z, Shontz K, Breuer CK, Johnson J, Chiang T. Assessing the Biocompatibility and Regeneration of Electrospun-Nanofiber Composite Tracheal Grafts. Laryngoscope 2024; 134:1155-1162. [PMID: 37578209 PMCID: PMC10864676 DOI: 10.1002/lary.30955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 08/15/2023]
Abstract
OBJECTIVE Composite tracheal grafts (CTG) combining decellularized scaffolds with external biomaterial support have been shown to support host-derived neotissue formation. In this study, we examine the biocompatibility, graft epithelialization, vascularization, and patency of three prototype CTG using a mouse microsurgical model. STUDY DESIGN Tracheal replacement, regenerative medicine, biocompatible airway splints, animal model. METHOD CTG electrospun splints made by combining partially decellularized tracheal grafts (PDTG) with polyglycolic acid (PGA), poly(lactide-co-ε-caprolactone) (PLCL), or PLCL/PGA were orthotopically implanted in mice (N = 10/group). Tracheas were explanted two weeks post-implantation. Micro-Computed Tomography was conducted to assess for graft patency, and histological analysis was used to assess for epithelialization and neovascularization. RESULT Most animals (greater than 80%) survived until the planned endpoint and did not exhibit respiratory symptoms. MicroCT confirmed the preservation of graft patency. Grossly, the PDTG component of CTG remained intact. Examining the electrospun component of CTG, PGA degraded significantly, while PLCL+PDTG and PLCL/PGA + PDTG maintained their structure. Microvasculature was observed across the surface of CTG and infiltrating the pores. There were no signs of excessive cellular infiltration or encapsulation. Graft microvasculature and epithelium appear similar in all groups, suggesting that CTG did not hinder endothelialization and epithelialization. CONCLUSION We found that all electrospun nanofiber CTGs are biocompatible and did not affect graft patency, endothelialization and epithelialization. Future directions will explore methods to accelerate graft regeneration of CTG. LEVEL OF EVIDENCE N/A Laryngoscope, 134:1155-1162, 2024.
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Affiliation(s)
- Lily Kreber
- College of Medicine, the Ohio State University, Columbus, OH, USA
| | - Lumei Liu
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH, USA
| | - Sayali Dharmadhikari
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH, USA
- College of Medicine, the Ohio State University, Columbus, OH, USA
| | - Zheng Hong Tan
- College of Medicine, the Ohio State University, Columbus, OH, USA
- Department of Pediatric Otolaryngology, Nationwide Children’s Hospital, Columbus, OH, USA
| | - Coreena Chan
- College of Medicine, the Ohio State University, Columbus, OH, USA
| | | | - Zakarie Hussein
- College of Medicine, the Ohio State University, Columbus, OH, USA
| | - Kimberly Shontz
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH, USA
| | - Christopher K. Breuer
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH, USA
- Department of Pediatric Surgery, Nationwide Children’s Hospital, Columbus, OH, USA
| | | | - Tendy Chiang
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH, USA
- College of Medicine, the Ohio State University, Columbus, OH, USA
- Department of Pediatric Otolaryngology, Nationwide Children’s Hospital, Columbus, OH, USA
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Zhou L, Hou Y, Pan X, Wang X, Jin H, Yang X, Wang K, Ding X, Wang K, Zhu M, Pan Y, Wang W, Lu L. Trichosanthin-derived peptide Tk-PQ attenuates immune rejection in mouse tracheal allotransplant model by suppressing PI3K-Akt and inducing type II immune polarization. Int Immunopharmacol 2023; 125:111081. [PMID: 37862724 DOI: 10.1016/j.intimp.2023.111081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/22/2023]
Abstract
Obliterative bronchiolitis (OB) is one of the main complications affecting long-term survival of post-lung transplantation patients. In this study, we evaluated the efficacy of Tk-PQ (a peptide derived from trichosanthin) in alleviating OB in a mouse ectopic tracheal transplant model. We found that post-transplantation treatment of Tk-PQ significant ameliorated OB symptoms including luminal occlusion, epithelial cells loss and fibrosis in the allograft. In addition, Tk-PQ promoted immune suppressive environment by inducing Th2 polarization and increasing Treg population which in turn led to elevated levels of anti-inflammatory cytokines IL-4, IL-10, IL-33 and decreased levels of pro-inflammatory IL-1β. Mechanistically, we used transcriptome analysis of splenic T cells from allografted mice to show that Tk-PQ treatment down-regulated the PI3K-Akt signaling pathway. Indeed, the immune suppression phenotypes of Tk-PQ was recapitulated by a PI3K inhibitor LY294002. Taken together, Tk-PQ regulates post-transplantation immuno-rejection by modulating the balance of T cell response via the PI3K-Akt pathway, making it a promising peptide based immune rejection suppressant for patients receiving allotransplant.
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Affiliation(s)
- Lin Zhou
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yafei Hou
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xufeng Pan
- Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Xue Wang
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Haizhen Jin
- Central Laboratory, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Xiaohua Yang
- Central Laboratory, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Kefan Wang
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xuping Ding
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Kai Wang
- Central Laboratory, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Minfang Zhu
- Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Yan Pan
- Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Weimin Wang
- Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Liming Lu
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Central Laboratory, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China.
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Gräbner C, Ramsperger-Gleixner M, Kuckhahn A, Weyand M, Heim C. Chronische Abstoßung nach Lungentransplantation. ZEITSCHRIFT FUR HERZ THORAX UND GEFASSCHIRURGIE 2023. [DOI: 10.1007/s00398-023-00562-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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4
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Mauer J, Kuckhahn A, Ramsperger-Gleixner M, Ensminger SM, Distler JH, Weyand M, Heim C. Nintedanib reduces alloimmune-induced chronic airway changes in murine tracheal allografts. Transpl Immunol 2022; 73:101608. [DOI: 10.1016/j.trim.2022.101608] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 04/12/2022] [Accepted: 04/23/2022] [Indexed: 01/01/2023]
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5
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Inhibiting S100A8/A9 attenuates airway obstruction in a mouse model of heterotopic tracheal transplantation. Biochem Biophys Res Commun 2022; 629:86-94. [DOI: 10.1016/j.bbrc.2022.08.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 08/27/2022] [Indexed: 11/18/2022]
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6
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Nemska S, Gassmann M, Bang ML, Frossard N, Tavakoli R. Antagonizing the CX3CR1 Receptor Markedly Reduces Development of Cardiac Hypertrophy After Transverse Aortic Constriction in Mice. J Cardiovasc Pharmacol 2021; 78:792-801. [PMID: 34882111 DOI: 10.1097/fjc.0000000000001130] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 08/01/2021] [Indexed: 12/12/2022]
Abstract
ABSTRACT Left-ventricular hypertrophy, characterized by cardiomyocyte hypertrophy, interstitial cell proliferation, and immune cell infiltration, is a high risk factor for heart failure and death. Chemokines interacting with G protein-coupled chemokine receptors probably play a role in left-ventricular hypertrophy development by promoting recruitment of activated leukocytes and modulating left-ventricular remodeling. Using the minimally invasive model of transverse aortic constriction in mice, we demonstrated that a variety of chemokine and chemokine receptor messenger Ribonucleic Acid are overexpressed in the early and late phase of hypertrophy progression. Among the chemokine receptors, Cx3cr1 and Ccr2 were most strongly overexpressed and were significantly upregulated at 3, 7, and 14 days after transverse aortic constriction. Ligands of CX3CR1 (Cx3cl1) and CCR2 (Ccl2, Ccl7, Ccl12) were significantly overexpressed in the left ventricle at the early stages after mechanical pressure overload. Pharmacological inhibition of CX3CR1 signaling using the antagonist AZD8797 led to a significant reduction of hypertrophy, whereas inhibition of CCR2 with the RS504393 antagonist did not show any effect. Furthermore, AZD8797 treatment reduced the expression of the hypertrophic marker genes Nppa and Nppb as well as the profibrotic genes Tgfb1 and Col1a1 at 14 days after transverse aortic constriction. These findings strongly suggest the involvement of the CX3CR1/CX3CL1 pathway in the pathogenesis of left-ventricular hypertrophy.
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MESH Headings
- Animals
- Aorta/physiopathology
- Aorta/surgery
- Atrial Natriuretic Factor/genetics
- Atrial Natriuretic Factor/metabolism
- CX3C Chemokine Receptor 1/antagonists & inhibitors
- CX3C Chemokine Receptor 1/genetics
- CX3C Chemokine Receptor 1/metabolism
- Chemokine CX3CL1/genetics
- Chemokine CX3CL1/metabolism
- Collagen Type I, alpha 1 Chain/genetics
- Collagen Type I, alpha 1 Chain/metabolism
- Constriction
- Disease Models, Animal
- Fibrosis
- Hypertrophy, Left Ventricular/etiology
- Hypertrophy, Left Ventricular/metabolism
- Hypertrophy, Left Ventricular/physiopathology
- Hypertrophy, Left Ventricular/prevention & control
- Male
- Mice, Inbred C57BL
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Natriuretic Peptide, Brain/genetics
- Natriuretic Peptide, Brain/metabolism
- Pyrimidines/pharmacology
- Signal Transduction
- Thiazoles/pharmacology
- Time Factors
- Transforming Growth Factor beta1/genetics
- Transforming Growth Factor beta1/metabolism
- Ventricular Function, Left/drug effects
- Ventricular Remodeling/drug effects
- Mice
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Affiliation(s)
- Simona Nemska
- Institute of Veterinary Physiology and Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland
- Laboratoire d'Innovation Thérapeutique UMR 7200, LabEx Medalis, CNRS, Faculté de Pharmacie, Université de Strasbourg, Illkirch, France
| | - Max Gassmann
- Institute of Veterinary Physiology and Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland
| | - Marie-Louise Bang
- IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy; and
- Institute of Genetic and Biomedical Research (IRGB) - National Research Council (CNR), Milan Unit, Milan, Italy
| | - Nelly Frossard
- Laboratoire d'Innovation Thérapeutique UMR 7200, LabEx Medalis, CNRS, Faculté de Pharmacie, Université de Strasbourg, Illkirch, France
| | - Reza Tavakoli
- Institute of Veterinary Physiology and Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland
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Interleukin-18: A Novel Participant in the Occurrence, Development, and Drug Therapy of Obliterative Bronchiolitis Postlung Transplantation. DISEASE MARKERS 2021; 2021:5586312. [PMID: 34367377 PMCID: PMC8337162 DOI: 10.1155/2021/5586312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 07/15/2021] [Indexed: 12/03/2022]
Abstract
Background Obliterative bronchiolitis (OB) was a main cause of deterioration of long-term prognosis in lung transplant recipients after the first posttransplant year. Proinflammatory cytokine interleukin-18 (IL-18) strengthened both the natural immunity and acquired immunity and played an important role in organ transplantation. The roles of IL-18 in the occurrence, development, and drug treatment of OB remained unclear. Methods Small interfering RNA (siRNA) against mouse IL-18 (siRNA-IL-18) was used to silence IL-18 expression. Mouse heterotopic tracheal transplantation model was used to simulate OB. Recipient mice were divided into 5 groups (n = 12) according to donor mouse strains and drug treatment: isograft group, allograft group, allograft+tacrolimus group, allograft+azithromycin group, and allograft+tacrolimus+azithromycin group. The luminal obliteration rates were pathological evaluation. Expressions of cytokines and MMPs were detected by real-time PCR, western blot, and enzyme chain immunosorbent assay (ELISA). Results The luminal obliteration rates of IL-18 of the siRNA-IL-18 group were significantly lower than those of the negative control group (p < 0.0001) and the blank control group (p = 0.0002). mRNA expressions of IFN-γ, EMMPRIN, MMP-8, and MMP-9 of the siRNA-IL-18 group were significantly lower than those of the negative and blank control groups. No tracheal occlusion occurred in grafts of the isograft group. The rates of tracheal occlusion of the allograft group, allograft+tacrolimus group, allograft+azithromycin group, and allograft+tacrolimus+azithromycin group were 72.17 ± 4.66%, 40.33 ± 3.00%, 38.50 ± 2.08%, and 23.33 ± 3.24%, respectively. There were significant differences between the 4 groups (p < 0.001). Serum protein expressions of IL-17 (p = 0.0017), IL-18 (p = 0.0036), IFN-γ (p = 0.0102), and MMP-9 (p = 0.0194) were significantly decreased in the allograft+tacrolimus+azithromycin group compared to the allograft group. Conclusions IL-18 could be a novel molecular involved in the occurrence, development, and drug treatment of OB.
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Hanka I, Stamminger T, Ramsperger-Gleixner M, Kuckhahn AV, Müller R, Weyand M, Heim C. Role of CMV chemokine receptor M33 in airway graft rejection in a mouse transplant model. Transpl Immunol 2021; 67:101415. [PMID: 34033867 DOI: 10.1016/j.trim.2021.101415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/20/2021] [Accepted: 05/20/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Cytomegalovirus (CMV) infection is a risk factor for bronchiolitis obliterans (BO), one form of chronic lung allograft dysfunction (CLAD). The viral chemokine receptor M33 is essential for successful spread of murine CMV to host salivary glands. In the present study we investigated the impact of M33 on chronic airway rejection. METHODS MHC I-mismatched tracheas of C·B10-H2b/LilMcdJ mice were transplanted into BALB/c (H2d) recipients and infected at different dates with wild type (WT) or M33-deleted (delM33) MCMV representing clinical settings of viral recipient (R)-donor (D)-serostatus: (D-/R+) or (D+/R-). Grafts were recovered for gene expression and histological / immunofluorescence analysis, respectively. RESULTS Evaluations showed significantly increased signs of chronic rejection in WT-infected mice compared to uninfected allografts seen in lower epithelium/lamina propria-ratio (ELR) (ELR 0.46 ± 0.07 [WT post] vs. ELR 0.66 ± 0.10 [non-inf.]; p < 0.05). The rejection in delM33-infected groups was significantly reduced vs. WT-infected groups (0.67 ± 0.04 [delM33 post]; vs. WT post p < 0.05). Furthermore, decreased rejection was observed in WT pre-infected compared to post-infected groups (0.56 ± 0.08 [WT pre]; vs. WT post p < 0.05). CD8+ T cell infiltration was significantly higher in WT-post compared to the delM33 infected or non-infected allografts. CONCLUSIONS These data support the role of the CMV in accelerating CLAD. The deletion of chemokine receptor M33 leads to attenuated rejection.
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Affiliation(s)
- Isabella Hanka
- Department of Cardiac Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Krankenhausstaße 12, 91054 Erlangen, Germany
| | - Thomas Stamminger
- Institute for Virology, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Martina Ramsperger-Gleixner
- Department of Cardiac Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Krankenhausstaße 12, 91054 Erlangen, Germany
| | - Annika V Kuckhahn
- Department of Cardiac Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Krankenhausstaße 12, 91054 Erlangen, Germany
| | - Regina Müller
- Institute of Clinical and Molecular Virology, Friedrich-Alexander University Erlangen-Nürnberg, Schlossgarten 4, 91054 Erlangen, Germany
| | - Michael Weyand
- Department of Cardiac Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Krankenhausstaße 12, 91054 Erlangen, Germany
| | - Christian Heim
- Department of Cardiac Surgery, Friedrich-Alexander University Erlangen-Nürnberg, Krankenhausstaße 12, 91054 Erlangen, Germany.
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9
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Heim C, Kuckhahn A, Ramsperger-Gleixner M, Nicolls MR, Weyand M, Ensminger SM. Microvasculature in murine tracheal allografts after combined therapy with clopidogrel and everolimus. Interact Cardiovasc Thorac Surg 2021; 32:960-968. [PMID: 33550369 DOI: 10.1093/icvts/ivab021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 01/01/2021] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES Survival after lung transplantation is mainly limited by the development of chronic lung allograft dysfunction. Previous studies have suggested T-cell mediated proliferation and microvascular changes in experimental small airways models as potential therapeutic targets. The aim of this study was to assess microvascular changes in murine orthotopic tracheal allografts after treatment with everolimus alone or in combination with clopidogrel. METHODS C57Bl/6 (H-2b) donor tracheas were orthotopically transplanted into CBA (H-2k) recipients. Mice received daily injections of everolimus (0.05 mg/kg) alone or combined with clopidogrel (1 mg/kg). Twenty-eight days after transplantation, ratio of the thickness of tracheal epithelium and lamina propria was measured as an indicator for chronic rejection. Additionally, graft oxygenation and graft perfusion were detected on postoperative days 4, 10 and 28. Quantitative reverse transcription polymerase chain reaction analysis was used for gene expression analysis. RESULTS While syngeneic grafts showed a stable tissue pO2 and undisturbed microvascular perfusion, rejecting allografts had a drastic decline in both parameters as well as a flattened epithelium and an increased thickness of the lamina propria. Treatment with everolimus reduced allogeneic fibroproliferation, but had no protective effects on the microvasculature; polymerase chain reaction analysis indicated hypoxic stress and inflammation. Combining everolimus with clopidogrel improved microvascular integrity in the tracheal grafts, but had no synergistic effect in preventing obliterative bronchiolitis development. CONCLUSIONS These data demonstrate that the ability of everolimus to reduce the development of post-transplant obliterative bronchiolitis is not caused by microvascular protection and has no synergistic effects with clopidogrel in acute airway rejection.
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Affiliation(s)
- Christian Heim
- Department of Cardiac Surgery, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Annika Kuckhahn
- Department of Cardiac Surgery, University of Erlangen-Nuremberg, Erlangen, Germany
| | | | - Mark R Nicolls
- Veterans Affairs Palo Alto Health Care System/Stanford University School of Medicine, Stanford, CA, USA
| | - Michael Weyand
- Department of Cardiac Surgery, University of Erlangen-Nuremberg, Erlangen, Germany
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10
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Lin J, Deng H, Zhang Y, Zou L, Fu Z, Dai J. Effect of human umbilical cord-derived mesenchymal stem cells on murine model of bronchiolitis obliterans like injury. Pediatr Pulmonol 2021; 56:129-137. [PMID: 33085211 DOI: 10.1002/ppul.25128] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 11/11/2022]
Abstract
BACKGROUND Bronchiolitis obliterans is a fatal respiratory disease characterized by the obliteration of small airways. Mesenchymal stem cells (MSCs) is a promising candidate for cell-based therapy. OBJECTIVE To evaluate the therapeutic effect of human umbilical cord-derived mesenchymal stem cells (HUC-MSCs) on a murine model of bronchiolitis obliterans like injury (BOLI). METHOD The murine model of BOLI was established by administrating of diacetyl (DA) via intratracheal instillation. Treatment of HUC-MSCs or HUC-MSCs culture medium (HUC-MSCs-CM) was conducted in the BOLI model. RESULTS The pathogenic manifestations, lung function, and the number of neutrophils were similar between the oropharyngeal inhalation DA group (OPI-DA), intratracheal instillation group (ITI-DA); however, less reduction of weight and higher survival rate were observed in ITI-DA groups. Compared with the control groups, the trend of weight loss was significantly reduced (p < .05), and the pulmonary function was significantly improved (p < .05) in HUC-MSCs and HUC-MSCs-CM groups. Masson staining and hematoxylin and eosin staining showed that the deposition of collagen around bronchioles and blood vessels is less and airway epithelial cells and basal cells in lung tissue repaired better in HUC-MSCs and HUC-MSCs-CM groups compared with the control groups. Immunofluorescence shows the expression of E-cadherin and cytokeratin 5 (CK-5) were significantly higher in HUC-MSCs and HUC-MSCs-CM groups compared with control groups, while HUC-MSCs themselves did not express E-cadherin or CK-5. The DiI label showed HUC-MSCs gradually reduced after 2 days in the bronchus and 4 days in bronchiole. CONCLUSION HUC-MSCs could help to repair airway epithelial cells in a murine model of BOLI. It might be related to paracrine factors of HUC-MSCs.
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Affiliation(s)
- Jilei Lin
- Department of Respiratory Disease, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Huarong Deng
- Guangzhou Women and Children's Medical Center, Guangdong, China
| | - Yin Zhang
- Department of Respiratory Disease, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Lin Zou
- Chongqing Key Laboratory of Pediatrics, Chongqing, China.,Center for Clinical Molecular Medicine, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Zhou Fu
- Department of Respiratory Disease, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
| | - Jihong Dai
- Department of Respiratory Disease, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China.,Chongqing Key Laboratory of Pediatrics, Chongqing, China
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11
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Pandolfi L, Fusco R, Frangipane V, D'Amico R, Giustra M, Bozzini S, Morosini M, D'Amato M, Cova E, Ferrario G, Morbini P, Colombo M, Prosperi D, Viglio S, Piloni D, Di Paola R, Cuzzocrea S, Meloni F. Loading Imatinib inside targeted nanoparticles to prevent Bronchiolitis Obliterans Syndrome. Sci Rep 2020; 10:20726. [PMID: 33244143 PMCID: PMC7693282 DOI: 10.1038/s41598-020-77828-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 11/12/2020] [Indexed: 12/24/2022] Open
Abstract
Bronchiolitis Obliterans Syndrome seriously reduces long-term survival of lung transplanted patients. Up to now there is no effective therapy once BOS is established. Nanomedicine introduces the possibility to administer drugs locally into lungs increasing drug accumulation in alveola reducing side effects. Imatinib was loaded in gold nanoparticles (GNP) functionalized with antibody against CD44 (GNP-HCIm). Lung fibroblasts (LFs) were derived from bronchoalveolar lavage of BOS patients. GNP-HCIm cytotoxicity was evaluated by MTT assay, apoptosis/necrosis and phosphorylated-cAbl (cAbl-p). Heterotopic tracheal transplantation (HTT) mouse model was used to evaluate the effect of local GNP-HCIm administration by Alzet pump. GNP-HCIm decreased LFs viability compared to Imatinib (44.4 ± 1.8% vs. 91.8 ± 3.2%, p < 0.001), inducing higher apoptosis (22.68 ± 4.3% vs. 6.43 ± 0.29; p < 0.001) and necrosis (18.65 ± 5.19%; p < 0.01). GNP-HCIm reduced cAbl-p (0.41 GNP-HCIm, 0.24 Imatinib vs. to control; p < 0.001). GNP-HCIm in HTT mouse model by Alzet pump significantly reduced tracheal lumen obliteration (p < 0.05), decreasing apoptosis (p < 0.05) and TGF-β-positive signal (p < 0.05) in surrounding tissue. GNP-HCIm treatment significantly reduced lymphocytic and neutrophil infiltration and mast cells degranulation (p < 0.05). Encapsulation of Imatinib into targeted nanoparticles could be considered a new option to inhibit the onset of allograft rejection acting on BOS specific features.
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Affiliation(s)
- Laura Pandolfi
- Research Laboratory of Lung Diseases, Section of Cell Biology, IRCCS Policlinico San Matteo Foundation, 27100, Pavia, Italy.
| | - Roberta Fusco
- Department of Chemical, Biological, Pharmaceutical and Environmental Science, University of Messina, 981000, Messina, Italy
| | - Vanessa Frangipane
- Research Laboratory of Lung Diseases, Section of Cell Biology, IRCCS Policlinico San Matteo Foundation, 27100, Pavia, Italy
| | - Ramona D'Amico
- Department of Chemical, Biological, Pharmaceutical and Environmental Science, University of Messina, 981000, Messina, Italy
| | - Marco Giustra
- NanoBioLab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20100, Milano, Italy
| | - Sara Bozzini
- Research Laboratory of Lung Diseases, Section of Cell Biology, IRCCS Policlinico San Matteo Foundation, 27100, Pavia, Italy
| | - Monica Morosini
- Research Laboratory of Lung Diseases, Section of Cell Biology, IRCCS Policlinico San Matteo Foundation, 27100, Pavia, Italy
| | - Maura D'Amato
- Research Laboratory of Lung Diseases, Section of Cell Biology, IRCCS Policlinico San Matteo Foundation, 27100, Pavia, Italy
| | - Emanuela Cova
- Department of Molecular Medicine, Pathology Unit, University of Pavia; IRCCS Foundation Policlinico San Matteo, 27100, Pavia, Italy
| | - Giuseppina Ferrario
- Department of Molecular Medicine, Pathology Unit, University of Pavia; IRCCS Foundation Policlinico San Matteo, 27100, Pavia, Italy
| | - Patrizia Morbini
- Department of Molecular Medicine, Pathology Unit, University of Pavia; IRCCS Foundation Policlinico San Matteo, 27100, Pavia, Italy
| | - Miriam Colombo
- NanoBioLab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20100, Milano, Italy
| | - Davide Prosperi
- NanoBioLab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20100, Milano, Italy.,Nanomedicine Laboratory, ICS Maugeri S.P.A., 27100, Pavia, Italy
| | - Simona Viglio
- Department of Molecular Medicine, Biochemistry Unit, University of Pavia, 27100, Pavia, Italy
| | - Davide Piloni
- Department of Internal Medicine, Section of Pneumology, University of Pavia, Pavia, Italy.,Department of Respiratory Diseases, IRCCS Policlinico San Matteo Foundation, Pavia, Italy
| | - Rosanna Di Paola
- Department of Chemical, Biological, Pharmaceutical and Environmental Science, University of Messina, 981000, Messina, Italy
| | - Salvatore Cuzzocrea
- Department of Chemical, Biological, Pharmaceutical and Environmental Science, University of Messina, 981000, Messina, Italy.,Department of Pharmacological and Physiological Science, Saint Louis University School of Medicine, Saint Louis, MO, USA
| | - Federica Meloni
- Department of Respiratory Diseases, IRCCS Policlinico San Matteo Foundation, Pavia, Italy.,Department of Internal Medicine, Section of Pneumology, University of Pavia, 27100, Pavia, Italy
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12
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Danielson A, Liu L, Shontz KM, Syed H, Dharmadhikari S, Reynolds SD, Breuer CK, Chiang T. Spatial and Temporal Analysis of Host Cells in Tracheal Graft Implantation. Laryngoscope 2020; 131:E340-E345. [PMID: 32521060 DOI: 10.1002/lary.28781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 04/25/2020] [Accepted: 05/08/2020] [Indexed: 11/05/2022]
Abstract
OBJECTIVES/HYPOTHESIS The ideal trachea replacement would be a living graft that is genetically identical to the host, avoiding the need for immunosuppression. We have developed a mouse model of syngeneic tracheal transplant that results in long-term survival without graft stenosis or delayed healing. To understand how host cells contribute to tracheal transplant integration, we quantified the populations of host cells in the graft and native trachea following implant. STUDY DESIGN Tracheal transplant, tracheal replacement, regenerative medicine, animal model. METHODS Tracheal grafts were obtained from female C57BL/6 mice and orthotopically transplanted into syngeneic male recipients. Cohorts were euthanized on day 14, day 45, and day 90 post-transplantation. Host and graft tracheas were explanted and analyzed by histology. Male host cells were quantified using fluorescence in situ hybridization, and macrophages were quantified with immunofluorescence. RESULTS Evidence of host-derived cells was found in the midgraft at the earliest time point (14 days). Host-derived cells transiently increased in the graft on day 45 and were predominantly found in the submucosa. By day 90, the population of host-derived cells population declined to a similar level on day 14. Macrophage infiltration of host and graft tissue was observed at all time points and was greatest on day 90. CONCLUSIONS Tracheal graft integration occurs by way of subacute transient host-cell infiltration and is primarily inflammatory in nature. Host-cell contribution to the graft epithelium is limited. These data indicate that creation of living, nonimmunogenic tracheal graft could serve as a viable solution for long-segment tracheal defects. LEVEL OF EVIDENCE 3 Laryngoscope, 131:E340-E345, 2021.
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Affiliation(s)
- Alex Danielson
- College of Medicine, The Ohio State University, Columbus, Ohio
| | - Lumei Liu
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus
| | - Kimberly M Shontz
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus
| | - Hassan Syed
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus
| | - Sayali Dharmadhikari
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus.,Department of Pediatric Otolaryngology, Nationwide Children's Hospital, Columbus, Ohio
| | - Susan D Reynolds
- Center for Perinatal Research, Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus
| | - Christopher K Breuer
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus.,Department of Pediatric Surgery, Nationwide Children's Hospital, Columbus, Ohio
| | - Tendy Chiang
- Center of Regenerative Medicine, Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus.,Department of Pediatric Otolaryngology, Nationwide Children's Hospital, Columbus, Ohio
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13
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Li Y, Shu P, Tang L, Yang X, Fan J, Zhang X. FK506 combined with GM6001 prevents tracheal obliteration in a mouse model of heterotopic tracheal transplantation. Transpl Immunol 2019; 57:101244. [PMID: 31526865 DOI: 10.1016/j.trim.2019.101244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 09/08/2019] [Accepted: 09/13/2019] [Indexed: 01/02/2023]
Abstract
BACKGROUND Obliterative bronchiolitis (OB) is the major complication limiting the long-term survival of allografts after lung transplantation. In this study, we investigated the effect of tacrolimus (FK506) combined with GM6001,a matrix metalloproteinase (MMP) inhibitor, on the formation of OB using a mouse heterotopic tracheal transplantation model. METHODS Syngeneic tracheal grafts were transplanted heterotopically from BALB/c mice to BALB/c mice. Allografts from C57BL/6 mice were transplanted to BALB/c mice. Isograft group, allograft group, allograft+FK506 group, allograft +GM6001 group and allograft+FK506 + GM6001 group was given respectively intraperitoneal injection of saline, saline, FK506, GM6001 and FK506 + GM6001 once a day. At 28 day after transplantation, OB incidence was determined by hematoxylin-eosin staining and the expressions of MMPs and cytokines were assessed using enzyme linked immunosorbent assay, immunohistochemical assays and western blot assay. RESULTS The tracheal occlusion rates of isograft group, allograft group, allograft+FK506 group, allograft+GM6001 group and allograft+FK506 + GM6001 group were 0, 74.1 ± 9.79%, 34.4 ± 6.04%, 40.3 ± 8.77% and 26.5 ± 5.73% respectively. There were significant differences between the latter two groups (P < .001). The serum MMP-8 and MMP-9 levels of allograft group were significantly higher than those of isograft group (P < .05) and had no significant decrease when treated by FK506. The serum MMP-8 and MMP-9 levels of allograft+FK506 + GM6001 group were significantly lower than those of allograft+FK506 group (P < .05). MMP-8 and MMP-9 protein expression in the grafts of allograft+FK506 + GM6001 group were lower than those of allograft+FK506 group verified by immunohistochemical staining and western blotting. CONCLUSION FK506 combined with GM6001 could alleviate tracheal obliteration in mouse heterotopic tracheal transplantation model, due to its inhibitory effect on MMPs.
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Affiliation(s)
- Yiqian Li
- Department of pharmacy, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
| | - Ping Shu
- Department of pharmacy, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
| | - Liang Tang
- Department of central Laboratory, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
| | - Xiaojun Yang
- Department of central Laboratory, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
| | - Junwei Fan
- Department of general Surgery, Shanghai General Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China.
| | - Xiaoqing Zhang
- Department of pharmacy, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China; The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China; Shanghai Municipal Key Clinical Specialty, Shanghai, China.
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14
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IL-17A Is Critical for CD8+ T Effector Response in Airway Epithelial Injury After Transplantation. Transplantation 2019; 102:e483-e493. [PMID: 30211827 DOI: 10.1097/tp.0000000000002452] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Airway epithelium is the primary target of trachea and lung transplant rejection, the degree of epithelial injury is closely correlated with obliterative bronchiolitis development. In this study, we investigated the cellular and molecular mechanisms of IL-17A-mediated airway epithelial injury after transplantation. METHODS Murine orthotopic allogeneic trachea or lung transplants were implemented in wild type or RORγt mice. Recipients received anti-IL-17A or anti-IFNγ for cytokine neutralization, anti-CD8 for CD8 T-cell depletion, or STAT3 inhibitor to suppress type 17 CD4+/CD8+ T cell development. Airway injury and graft inflammatory cell infiltration were examined by histopathology and immunohistochemistry. Gene expression of IL-17A, IFNγ, perforin, granzyme B, and chemokines in grafts was quantitated by real-time RT-PCR. RESULTS IL-17A and IFNγ were rapidly expressed and associated with epithelial injury and CD8 T-cell accumulation after allotransplantation. Depletion of CD8 T cells prevented airway epithelial injury. Neutralization of IL-17A or devoid of IL-17A production by RORγt deficiency improved airway epithelial integrity of the trachea allografts. Anti-IL-17A reduced the expression of CXCL9, CXCL10, CXCL11, and CCL20, and abolished CD8 T-cell accumulation in the trachea allografts. Inhibition of STAT3 activation significantly reduced IL-17A expression in both trachea and lung allografts; however, it increased IFNγ expression and cytotoxic activities, which resulted in the failure of airway protection. CONCLUSIONS Our data reveal the critical role of IL-17A in mediating CD8 T effector response that causes airway epithelial injury and lung allograft rejection, and indicate that inhibition of STAT3 signals could drive CD8 T cells from Tc17 toward Tc1 development.
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15
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SOCS3 overexpression in T cells ameliorates chronic airway obstruction in a murine heterotopic tracheal transplantation model. Surg Today 2019; 49:443-450. [PMID: 30617600 DOI: 10.1007/s00595-018-1753-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 11/30/2018] [Indexed: 10/27/2022]
Abstract
PURPOSE Suppressor of cytokine signaling-3 (SOCS3) is a negative feedback inhibitor of cytokine signaling with T-cell-mediated immunosuppressive effects on obliterative bronchiolitis (OB). In this study, we aimed to investigate the impact of T-cell-specific overexpression of SOCS3 using a murine heterotopic tracheal transplantation (HTT) model. METHODS Tracheal allografts from BALB/c mice were subcutaneously transplanted into wild-type C57BL/6J (B6; WT) mice and SOCS3 transgenic B6 (SOCS3TG) mice. Tracheal allografts were analyzed by immunohistochemistry and quantitative polymerase chain reaction assays at days 7 and 21. RESULTS At day 21, allografts in SOCS3TG mice showed significant amelioration of airway obstruction and epithelial loss compared with allografts in WT mice. The intragraft expression of IFN-γ and CXCL10 was suppressed, while that of IL-4 was enhanced in SOCS3TG mice at day 7. The T-bet levels were lower in SOCS3TG allografts than in WT allografts at day 7. CONCLUSION We revealed that the overexpression of SOCS3 in T cells effectively ameliorates OB development in a murine HTT model by inhibiting the Th1 phenotype in the early phase. Our results suggest that the regulation of the T-cell response, through the modulation of SOCS expression, has potential as a new therapeutic strategy for chronic lung allograft dysfunction.
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16
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Kawashima M, Sato M, Murakawa T, Anraku M, Konoeda C, Hosoi A, Kakimi K, Nakajima J. Role of Toll-like Receptor 4 Expressed by Fibroblasts in Allograft Fibrosis in Mouse Orthotopic Tracheal Transplantation. Transplant Proc 2018; 50:3863-3872. [PMID: 30577279 DOI: 10.1016/j.transproceed.2018.06.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 05/25/2018] [Accepted: 06/21/2018] [Indexed: 12/16/2022]
Abstract
Development of chronic lung allograft dysfunction involves various alloimmune-independent insults including those mediated by Toll-like receptor (TLR) signaling, which is known to activate alloimmune responses. We hypothesized that TLR signaling may also contribute to the activation of fibroblasts and promoting allograft airway fibrosis. Mouse orthotopic tracheal transplants were conducted between major histocompatibility complex (MHC)-mismatched Balb/c donor and wild-type C3H or C3H-derived TLR4 mutant recipients (nonfunctional TLR4). Immunohistochemistry on day 21 showed significantly smaller alpha-smooth muscle actin (α-SMA)-positive areas in TLR4 mutant recipients than wild-type recipients (P = .01). No difference was found for CD3+ T-cell infiltration. Proliferation of alloreactive T cells derived from the recipient spleen showed no difference between TLR4 mutant and wild-type recipients in a mixed lymphocyte reaction. The effect of TLR4 signaling was examined in primary pulmonary fibroblast cultures both with lipopolysaccharide (LPS) and transforming growth factor (TGF)-β1. Stimulation with LPS significantly increased expression of α-SMA mRNA in wild-type fibroblasts cultured with TGF-β1 compared with the control without LPS (P = .001). Taken together, these findings suggest disruption of TLR signaling leads to reduced activation of fibroblasts without affecting T-cell infiltration and proliferation in this model. TLR4-mediated activation of fibroblasts may be a potentially important mechanism of allograft remodeling.
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Affiliation(s)
- M Kawashima
- Department of Thoracic Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - M Sato
- Department of Thoracic Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
| | - T Murakawa
- Department of Thoracic Surgery, Kansai Medical University, Osaka, Japan
| | - M Anraku
- Department of Thoracic Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - C Konoeda
- Department of Thoracic Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - A Hosoi
- Department of Immunotherapeutics, The University of Tokyo Hospital, Tokyo, Japan
| | - K Kakimi
- Department of Immunotherapeutics, The University of Tokyo Hospital, Tokyo, Japan
| | - J Nakajima
- Department of Thoracic Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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17
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IL-17 contributes to the pathogenesis of obliterative bronchiolitis via regulation of M1 macrophages polarization in murine heterotopic trachea transplantation models. Int Immunopharmacol 2017; 52:51-60. [DOI: 10.1016/j.intimp.2017.08.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 08/02/2017] [Accepted: 08/25/2017] [Indexed: 12/21/2022]
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18
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Imatinib ameliorates bronchiolitis obliterans via inhibition of fibrocyte migration and differentiation. J Heart Lung Transplant 2017; 36:138-147. [DOI: 10.1016/j.healun.2016.06.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 04/13/2016] [Accepted: 06/01/2016] [Indexed: 02/06/2023] Open
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19
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Reduction of obliterative bronchiolitis (OB) by prolyl-hydroxylase-inhibitors activating hypoxia-inducible transcription factors in an experimental mouse model. Transpl Immunol 2016; 39:66-73. [DOI: 10.1016/j.trim.2016.08.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 08/20/2016] [Indexed: 11/19/2022]
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20
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Apoptosis of the Tracheal Epithelium Can Increase the Number of Recipient Bone Marrow–Derived Myofibroblasts in Allografts and Exacerbate Obliterative Bronchiolitis After Tracheal Transplantation in Mice. Transplantation 2016; 100:1880-8. [DOI: 10.1097/tp.0000000000001230] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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21
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Nemska S, Daubeuf F, Frossard N. Revascularization of the graft in obliterative bronchiolitis after heterotopic tracheal transplantation. Physiol Rep 2016; 4:e12690. [PMID: 26908711 PMCID: PMC4816893 DOI: 10.14814/phy2.12690] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 12/21/2015] [Accepted: 12/23/2015] [Indexed: 01/12/2023] Open
Abstract
Obliterative bronchiolitis is the principal long-term problem for lung transplant patients. One of the simplest and most reproducible animal models of obliterative bronchiolitis is heterotopic tracheal transplantation in subcutaneous tissue, where the graft is not primarily vascularized. We demonstrate here the rapid graft revascularization and the kinetics of expression of its angiogenic and lymphatic factors. We performed iso- and allotracheal transplantations harvested on day 0-21. The number of functional blood vessels, quantified after intravenous biotinylated dextran administration, increased from D0 (0 for both iso- and allografts) to D21 (44 ± 8 vessels/mm(2) in isografts and 22 ± 3 in allografts, P < 0.001 for both vs. D0). VEGF mRNA expression assessed by qPCR peaked on D1 (4.3-fold increase in isografts and 4.0-fold in allografts, P < 0.0001 for both vs. D0), but receded thereafter. Angiopoietin-1, involved in the maturation of the neoformed vessels, increased later on, by 6.2-fold (P < 0.05) in isografts and 11.5-fold in allografts (P < 0.001) by D21, and angiopoietin-2 by 7.8-fold in isografts (P < 0.05) and 13.8-fold in allografts (P < 0.01). Although always present in the iso- and allografts, there were significantly more and larger LYVE1(+) lymphatic vessels at D21 in allografts than in isografts. Thus, we demonstrate that tracheal grafts are rapidly revascularized by functional blood and lymphatic vessels, due to early VEGF and subsequent angiopoietins expression, which is a new advantage of this model, in addition to its ease of use, reproducibility, and viability in the absence of immunosuppressive treatment.
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Affiliation(s)
- Simona Nemska
- Laboratoire d'Innovation Thérapeutique, Unité Mixte de Recherche 7200 Centre National de la Recherche Scientifique-Université de Strasbourg and Laboratoire d'Excellence MEDALIS Faculté de Pharmacie, Illkirch, France
| | - François Daubeuf
- Laboratoire d'Innovation Thérapeutique, Unité Mixte de Recherche 7200 Centre National de la Recherche Scientifique-Université de Strasbourg and Laboratoire d'Excellence MEDALIS Faculté de Pharmacie, Illkirch, France
| | - Nelly Frossard
- Laboratoire d'Innovation Thérapeutique, Unité Mixte de Recherche 7200 Centre National de la Recherche Scientifique-Université de Strasbourg and Laboratoire d'Excellence MEDALIS Faculté de Pharmacie, Illkirch, France
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22
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Liu J, Zhou X, Zhan Z, Meng Q, Han Y, Shi Q, Tang J, li J, Fan H, Liu Z. IL-25 regulates the polarization of macrophages and attenuates obliterative bronchiolitis in murine trachea transplantation models. Int Immunopharmacol 2015; 25:383-92. [DOI: 10.1016/j.intimp.2015.02.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 02/02/2015] [Accepted: 02/02/2015] [Indexed: 01/17/2023]
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23
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Cheng L, Guo H, Qiao X, Liu Q, Nie J, Li J, Wang J, Jiang K. T cell immunohistochemistry refines lung transplant acute rejection diagnosis and grading. Diagn Pathol 2013; 8:168. [PMID: 24330571 PMCID: PMC3819020 DOI: 10.1186/1746-1596-8-168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2013] [Accepted: 09/29/2013] [Indexed: 01/30/2023] Open
Abstract
Objective Lung transplant volume has been increasing. However, inaccurate and uncertain diagnosis for lung transplant rejection hurdles long-term outcome due to, in part, interobserver variability in rejection grading. Therefore, a more reliable method to facilitate diagnosing and grading rejection is warranted. Method Rat lung grafts were harvested on day 3, 7, 14 and 28 post transplant for histological and immunohistochemical assessment. No immunosuppressive treatment was administered. We explored the value of interstitial T lymphocytes quantification by immunohistochemistry and compared the role of T cell immunohistochemistry with H&E staining in diagnosing and grading lung transplant rejection. Results Typical acute rejection from grade A1 to A4 was found. Rejection severity was heterogeneously distributed in one-third transplanted lungs (14/40): lesions in apex and center were more augmented than in the base and periphery of the grafts, respectively. Immunohistochemistry showed profound difference in T lymphocyte infiltration among grade A1 to A4 rejections. The coincidence rate of H&E and immunohistochemistry was 77.5%. The amount of interstitial T lymphocyte infiltration increased gradually with the upgrading of rejection. The statistical analysis demonstrated that the difference in the amount of interstitial T lymphocytes between grade A2 and A3 was not obvious. However, T lymphocytes in lung tissue of grade A4 were significantly more abundant than in other grades. Conclusions Rejection severity was heterogeneously distributed within lung grafts. Immunohistochemistry improves the sensitivity and specificity of rejection diagnosis, and interstitial T lymphocyte quantitation has potential value in diagnosing and monitoring lung allograft rejection. Virtual slides The virtual slides for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1536075282108217.
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Preidl RHM, Eckl S, Ramsperger-Gleixner M, Koch N, Spriewald BM, Weyand M, Ensminger SM. Clopidogrel reduces post-transplant obliterative bronchiolitis. Transpl Int 2013; 26:1038-48. [DOI: 10.1111/tri.12163] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 05/13/2013] [Accepted: 07/15/2013] [Indexed: 11/30/2022]
Affiliation(s)
- Raimund H. M. Preidl
- Department of Cardiac Surgery; Friedrich-Alexander University; Erlangen-Nürnberg Germany
| | - Sebastian Eckl
- Department of Cardiac Surgery; Friedrich-Alexander University; Erlangen-Nürnberg Germany
| | | | - Nina Koch
- Department of Cardiac Surgery; Friedrich-Alexander University; Erlangen-Nürnberg Germany
| | - Bernd M. Spriewald
- Department of Internal Medicine 5; Hematology/Oncology and Institute of Clinical Immunology; Friedrich-Alexander University; Erlangen-Nürnberg Germany
| | - Michael Weyand
- Department of Cardiac Surgery; Friedrich-Alexander University; Erlangen-Nürnberg Germany
| | - Stephan M. Ensminger
- Department of Cardiac Surgery; Friedrich-Alexander University; Erlangen-Nürnberg Germany
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