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Keller MB, Newman D, Alnababteh M, Ponor L, Shah P, Mathew J, Kong H, Andargie T, Park W, Charya A, Luikart H, Aryal S, Nathan SD, Orens JB, Khush KK, Jang M, Agbor-Enoh S. Extreme elevations of donor-derived cell-free DNA increases the risk of chronic lung allograft dysfunction and death, even without clinical manifestations of disease. J Heart Lung Transplant 2024; 43:1374-1382. [PMID: 38705500 DOI: 10.1016/j.healun.2024.04.064] [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: 01/02/2024] [Revised: 03/11/2024] [Accepted: 04/25/2024] [Indexed: 05/07/2024] Open
Abstract
BACKGROUND Lung transplant recipients are traditionally monitored with pulmonary function testing (PFT) and lung biopsy to detect post-transplant complications and guide treatment. Plasma donor-derived cell free DNA (dd-cfDNA) is a novel molecular approach of assessing allograft injury, including subclinical allograft dysfunction. The aim of this study was to determine if episodes of extreme molecular injury (EMI) in lung transplant recipients increases the risk of chronic lung allograft dysfunction (CLAD) or death. METHODS This multicenter prospective cohort study included 238 lung transplant recipients. Serial plasma samples were collected for dd-cfDNA measurement by shotgun sequencing. EMI was defined as a dd-cfDNA above the third quartile of levels observed for acute rejection (dd-cfDNA level of ≥5% occurring after 45 days post-transplant). EMI was categorized as Secondary if associated with co-existing acute rejection, infection or PFT decline; or Primary if not associated with these conditions. RESULTS EMI developed in 16% of patients at a median 343.5 (IQR: 177.3-535.5) days post-transplant. Over 50% of EMI episodes were classified as Primary. EMI was associated with an increased risk of severe CLAD or death (HR: 2.78, 95% CI: 1.26-6.22, p = 0.012). The risk remained consistent for the Primary EMI subgroup (HR: 2.34, 95% CI 1.18-4.85, p = 0.015). Time to first EMI episode was a significant predictor of the likelihood of developing CLAD or death (AUC=0.856, 95% CI=0.805-0.908, p < 0.001). CONCLUSIONS Episodes of EMI in lung transplant recipients are often isolated and may not be detectable with traditional clinical monitoring approaches. EMI is associated with an increased risk of severe CLAD or death, independent of concomitant transplant complications.
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Affiliation(s)
- Michael B Keller
- Laborarory of Applied Precision Omics (APO) National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health, Bethesda, Maryland; Genomic Research Alliance for Transplantation (GRAfT), Bethesda, Maryland; Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland; Pulmonary and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, Maryland
| | - David Newman
- College of Nursing, Florida Atlantic University, Boca Raton, Florida
| | - Muhtadi Alnababteh
- Laborarory of Applied Precision Omics (APO) National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health, Bethesda, Maryland; Genomic Research Alliance for Transplantation (GRAfT), Bethesda, Maryland; Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, Maryland
| | - Lucia Ponor
- Genomic Research Alliance for Transplantation (GRAfT), Bethesda, Maryland; Division of Hospital Medicine, Johns Hopkins Bayview Medical Center, Baltimore, Maryland
| | - Pali Shah
- Genomic Research Alliance for Transplantation (GRAfT), Bethesda, Maryland; Pulmonary and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, Maryland
| | - Joby Mathew
- Genomic Research Alliance for Transplantation (GRAfT), Bethesda, Maryland; Pulmonary and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, Maryland
| | - Hyesik Kong
- Laborarory of Applied Precision Omics (APO) National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health, Bethesda, Maryland; Genomic Research Alliance for Transplantation (GRAfT), Bethesda, Maryland
| | - Temesgen Andargie
- Laborarory of Applied Precision Omics (APO) National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health, Bethesda, Maryland; Genomic Research Alliance for Transplantation (GRAfT), Bethesda, Maryland
| | - Woojin Park
- Laborarory of Applied Precision Omics (APO) National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health, Bethesda, Maryland; Genomic Research Alliance for Transplantation (GRAfT), Bethesda, Maryland
| | - Ananth Charya
- Division of Pulmonary and Critical Care Medicine, University of Maryland Medical Center, Baltimore, Maryland
| | - Helen Luikart
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Palo Alto, California; Department of Pathology, Stanford University School of Medicine, Palo Alto, California
| | - Shambhu Aryal
- Genomic Research Alliance for Transplantation (GRAfT), Bethesda, Maryland; Advanced Lung Disease and Lung Transplant Program, Inova Fairfax Hospital, Falls Church, Virginia
| | - Steven D Nathan
- Genomic Research Alliance for Transplantation (GRAfT), Bethesda, Maryland; Advanced Lung Disease and Lung Transplant Program, Inova Fairfax Hospital, Falls Church, Virginia
| | - Jonathan B Orens
- Genomic Research Alliance for Transplantation (GRAfT), Bethesda, Maryland; Pulmonary and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, Maryland
| | - Kiran K Khush
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Palo Alto, California
| | - Moon Jang
- Laborarory of Applied Precision Omics (APO) National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health, Bethesda, Maryland; Genomic Research Alliance for Transplantation (GRAfT), Bethesda, Maryland
| | - Sean Agbor-Enoh
- Laborarory of Applied Precision Omics (APO) National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health, Bethesda, Maryland; Genomic Research Alliance for Transplantation (GRAfT), Bethesda, Maryland; Pulmonary and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, Maryland.
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2
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Combs MP, Belloli EA, Gargurevich N, Flaherty KR, Murray S, Galbán CJ, Lama VN. Results from randomized trial of pirfenidone in patients with chronic rejection (STOP-CLAD study). J Heart Lung Transplant 2024; 43:1468-1477. [PMID: 38796045 DOI: 10.1016/j.healun.2024.05.013] [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: 01/11/2024] [Revised: 05/10/2024] [Accepted: 05/19/2024] [Indexed: 05/28/2024] Open
Abstract
BACKGROUND Chronic lung allograft dysfunction (CLAD) is the leading long-term cause of poor outcomes after transplant and manifests by fibrotic remodeling of small airways and/or pleuroparenchymal fibroelastosis. This study evaluated the effect of pirfenidone on quantitative radiographic and pulmonary function assessment in patients with CLAD. METHODS We performed a single-center, 6-month, randomized, placebo-controlled trial of pirfenidone in patients with CLAD. Randomization was stratified by CLAD phenotype. The primary outcome for this study was change in radiographic assessment of small airways disease, quantified as percentage of lung volume using parametric response mapping analysis of computed tomography scans (PRMfSAD); secondary outcomes included change in forced expiratory volume in 1 second (FEV1), change in forced vital capacity (FVC), and change in radiographic quantification of parenchymal disease (PRMPD). Linear mixed models were used to evaluate the treatment effect on outcome measures. RESULTS The goal enrollment of 60 patients was not met due to the coronavirus disease of 2019 pandemic, with 23 patients included in the analysis. There was no significant difference over the study period between the pirfenidone vs placebo groups with regards to the observed change in PRMfSAD (+4.2% vs -0.4%; p = 0.22), FEV1 (-3.5% vs -3.6%; p = 0.97), FVC (-1.9% vs -4.6%; p = 0.41), or PRMPD (-0.6% vs -2.5%; p = 0.30). The study treatment tolerance and adverse events were generally similar between the pirfenidone and placebo groups. CONCLUSIONS Pirfenidone had no apparent impact on radiographic evidence of allograft dysfunction or pulmonary function decline in a single-center randomized trial of CLAD patients that did not meet enrollment goals but had an acceptable tolerance and side-effect profile.
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Affiliation(s)
- Michael P Combs
- Department of Medicine, Division of Pulmonary & Critical Care, University of Michigan, Ann Arbor, Michigan
| | - Elizabeth A Belloli
- Department of Medicine, Division of Pulmonary & Critical Care, University of Michigan, Ann Arbor, Michigan
| | | | - Kevin R Flaherty
- Department of Medicine, Division of Pulmonary & Critical Care, University of Michigan, Ann Arbor, Michigan
| | - Susan Murray
- School of Public Health, University of Michigan, Ann Arbor, Michigan
| | - Craig J Galbán
- Department of Radiology, University of Michigan, Ann Arbor, Michigan
| | - Vibha N Lama
- Department of Medicine, Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Emory University, Atlanta, Georgia.
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Brocard S, Morin M, Dos Santos Brito Silva N, Renaud-Picard B, Coiffard B, Demant X, Falque L, Le Pavec J, Roux A, Villeneuve T, Knoop C, Mornex JF, Salpin M, Boussaud V, Rousseau O, Mauduit V, Durand A, Magnan A, Gourraud PA, Vince N, Südholt M, Tissot A, Limou S. Description and first insights on a large genomic biobank of lung transplantation. Eur J Hum Genet 2024:10.1038/s41431-024-01683-y. [PMID: 39164465 DOI: 10.1038/s41431-024-01683-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 07/29/2024] [Accepted: 08/06/2024] [Indexed: 08/22/2024] Open
Abstract
The main limitation to long-term lung transplant (LT) survival is chronic lung allograft dysfunction (CLAD), which leads to irreversible lung damage and significant mortality. Individual factors can impact CLAD, but no large genetic investigation has been conducted to date. We established the multicentric Genetic COhort in Lung Transplantation (GenCOLT) biobank from a rich and homogeneous sub-part of COLT cohort. GenCOLT collected DNA, high-quality GWAS (genome-wide association study) genotyping and robust HLA data for donors and recipients to supplement COLT clinical data. GenCOLT closely mirrors the global COLT cohort without significant variations in variables like demographics, initial disease and survival rates (P > 0.05). The GenCOLT donors were 45 years-old on average, 44% women, and primarily died of stroke (54%). The recipients were 48 years-old at transplantation on average, 45% women, and the main underlying disease was chronic obstructive pulmonary disease (45%). The mean follow-up time was 67 months and survival at 5 years was 57.3% for the CLAD subgroup and 97.4% for the non-CLAD subgroup. After stringent quality controls, GenCOLT gathered more than 7.3 million SNP and HLA genotypes for 387 LT pairs, including 91% pairs composed of donor and recipient of European ancestry. Overall, GenCOLT is an accurate snapshot of LT clinical practice in France and Belgium between 2009 and 2018. It currently represents one of the largest genetic biobanks dedicated to LT with data available simultaneously for donors and recipients. This unique cohort will empower to run comprehensive GWAS investigations of CLAD and other LT outcomes.
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Affiliation(s)
- Simon Brocard
- Nantes Université, CHU Nantes, Centrale Nantes, Inserm, Center for Research in Transplantation and Translational Immunology, UMR 1064, ITUN, Nantes, France
- IMT Atlantique - DAPI - Département Automatique, Productique et Informatique, Nantes, France
| | - Martin Morin
- Nantes Université, CHU Nantes, Centrale Nantes, Inserm, Center for Research in Transplantation and Translational Immunology, UMR 1064, ITUN, Nantes, France
| | - Nayane Dos Santos Brito Silva
- Nantes Université, CHU Nantes, Centrale Nantes, Inserm, Center for Research in Transplantation and Translational Immunology, UMR 1064, ITUN, Nantes, France
- São Paulo State University, Molecular Genetics and Bioinformatics Laboratory, School of Medicine, Botucatu, State of São Paulo, Brazil
| | - Benjamin Renaud-Picard
- Department of Respiratory Medicine and Strasbourg Lung Transplant Program, Hôpitaux Universitaires de Strasbourg, Strasbourg, France; Université de Strasbourg, Inserm UMR 1260, Strasbourg, France
| | - Benjamin Coiffard
- Aix Marseille Univ, Department of Respiratory Medicine and Lung Transplantation, APHM, Hôpital Nord, Marseille, France
| | - Xavier Demant
- Service de Pneumologie, Centre Hospitalier Universitaire de Bordeaux, Pessac, France
| | - Loïc Falque
- Service Hospitalier Universitaire de Pneumologie et Physiologie, CHU Grenoble Alpes, Pôle Thorax et Vaisseaux, Grenoble, France
| | - Jérome Le Pavec
- Service de Pneumologie et Transplantation Pulmonaire, Groupe hospitalier Marie-Lannelongue -Saint Joseph, Le Plessis-Robinson, Université Paris-Saclay, Le Kremlin Bicêtre, UMR_S 999, Université Paris-Sud, INSERM France, Paris, France
| | - Antoine Roux
- Pneumology, Adult Cystic Fibrosis Center and Lung Transplantation Department Hôpital Foch, Suresnes, Université de Versailles Saint Quentin Paris-Saclay, INRAe UMR 0892, Paris Transplant Group, Paris, France
| | - Thomas Villeneuve
- CHU Toulouse, Service de Pneumologie, Université Toulouse III-Paul Sabatier, Toulouse, France
| | | | - Jean-François Mornex
- Université de Lyon, Université Lyon 1, PSL, EPHE, INRAE, IVPC, hospices civils de Lyon, groupement hospitalier est, service de pneumologie, Orphalung, RESPIFIL Lyon, Lyon, France
| | - Mathilde Salpin
- APHP Nord-Université Paris Cité, Hôpital Bichat, Service de Pneumologie B et Transplantation Pulmonaire, Université Paris Cité, PHERE UMRS 1152, Paris, France
| | | | - Olivia Rousseau
- Nantes Université, CHU Nantes, Centrale Nantes, Inserm, Center for Research in Transplantation and Translational Immunology, UMR 1064, ITUN, Nantes, France
| | - Vincent Mauduit
- Nantes Université, CHU Nantes, Centrale Nantes, Inserm, Center for Research in Transplantation and Translational Immunology, UMR 1064, ITUN, Nantes, France
| | - Axelle Durand
- Nantes Université, CHU Nantes, Centrale Nantes, Inserm, Center for Research in Transplantation and Translational Immunology, UMR 1064, ITUN, Nantes, France
| | - Antoine Magnan
- Hôpital Foch, Université de Versailles Saint Quentin Paris-Saclay, INRAe UMR 0892, Paris, France
| | - Pierre-Antoine Gourraud
- Nantes Université, CHU Nantes, Centrale Nantes, Inserm, Center for Research in Transplantation and Translational Immunology, UMR 1064, ITUN, Nantes, France
| | - Nicolas Vince
- Nantes Université, CHU Nantes, Centrale Nantes, Inserm, Center for Research in Transplantation and Translational Immunology, UMR 1064, ITUN, Nantes, France
| | - Mario Südholt
- IMT Atlantique - DAPI - Département Automatique, Productique et Informatique, Nantes, France
- LS2N - STACK - Software Stack for Massively Geo-Distributed Infrastructures, Nantes, France
| | - Adrien Tissot
- Nantes Université, CHU Nantes, Centrale Nantes, Inserm, Center for Research in Transplantation and Translational Immunology, UMR 1064, ITUN, Nantes, France
- CHU Nantes, Nantes Université, Service de Pneumologie, Nantes, France
| | - Sophie Limou
- Nantes Université, CHU Nantes, Centrale Nantes, Inserm, Center for Research in Transplantation and Translational Immunology, UMR 1064, ITUN, Nantes, France.
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Ye D, Liu Q, Zhang C, Dai E, Fan J, Wu L. Relationship between immune cells and the development of chronic lung allograft dysfunction. Int Immunopharmacol 2024; 137:112381. [PMID: 38865754 DOI: 10.1016/j.intimp.2024.112381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/28/2024] [Accepted: 05/28/2024] [Indexed: 06/14/2024]
Abstract
A major cause of death for lung transplant recipients (LTRs) is the advent of chronic lung allograft dysfunction (CLAD), which has long plagued the long-term post-transplant prognosis and quality of survival of transplant patients. The intricacy of its pathophysiology and the irreversibility of its illness process present major obstacles to the clinical availability of medications. Immunotherapeutic medications are available, but they only aim to slow down the course of CLAD rather than having any therapeutic impact on the disease's development. For this reason, understanding the pathophysiology of CLAD is essential for both disease prevention and proven treatment. The immunological response in particular, in relation to chronic lung allograft dysfunction, has received a great deal of interest recently. Innate immune cells like natural killer cells, eosinophils, neutrophils, and mononuclear macrophages, as well as adaptive immunity cells like T and B cells, play crucial roles in this process through the release of chemokines and cytokines. The present review delves into changes and processes within the immune microenvironment, with a particular focus on the quantity, subtype, and characteristics of effector immune cells in the peripheral and transplanted lungs after lung transplantation. We incorporate and solidify the documented role of immune cells in the occurrence and development of CLAD with the advancements in recent years.
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Affiliation(s)
- Defeng Ye
- Department of Thoracic Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qiongliang Liu
- Department of Thoracic Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chengcheng Zhang
- Department of Thoracic Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Enci Dai
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiang Fan
- Department of Thoracic Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Liang Wu
- Department of Thoracic Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Walker NM, Ibuki Y, McLinden AP, Misumi K, Mitchell DC, Kleer GG, Lock AM, Vittal R, Sonenberg N, Garner AL, Lama VN. MNK-driven eIF4E phosphorylation regulates the fibrogenic transformation of mesenchymal cells and chronic lung allograft dysfunction. J Clin Invest 2024; 134:e168393. [PMID: 39145446 PMCID: PMC11324311 DOI: 10.1172/jci168393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 06/25/2024] [Indexed: 08/16/2024] Open
Abstract
Tissue fibrosis remains unamenable to meaningful therapeutic interventions and is the primary cause of chronic graft failure after organ transplantation. Eukaryotic translation initiation factor (eIF4E), a key translational regulator, serves as convergent target of multiple upstream profibrotic signaling pathways that contribute to mesenchymal cell (MC) activation. Here, we investigate the role of MAP kinase-interacting serine/threonine kinase-induced (MNK-induced) direct phosphorylation of eIF4E at serine 209 (Ser209) in maintaining fibrotic transformation of MCs and determine the contribution of the MNK/eIF4E pathway to the pathogenesis of chronic lung allograft dysfunction (CLAD). MCs from patients with CLAD demonstrated constitutively higher eIF4E phosphorylation at Ser209, and eIF4E phospho-Ser209 was found to be critical in regulating key fibrogenic protein autotaxin, leading to sustained β-catenin activation and profibrotic functions of CLAD MCs. MNK1 signaling was upregulated in CLAD MCs, and genetic or pharmacologic targeting of MNK1 activity inhibited eIF4E phospho-Ser209 and profibrotic functions of CLAD MCs in vitro. Treatment with an MNK1/2 inhibitor (eFT-508) abrogated allograft fibrosis in an orthotopic murine lung-transplant model. Together these studies identify what we believe is a previously unrecognized MNK/eIF4E/ATX/β-catenin signaling pathway of fibrotic transformation of MCs and present the first evidence, to our knowledge, for the utility of MNK inhibitors in fibrosis.
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Affiliation(s)
- Natalie M. Walker
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Yuta Ibuki
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - A. Patrick McLinden
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Keizo Misumi
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Dylan C. Mitchell
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan, USA
| | - Gabriel G. Kleer
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Alison M. Lock
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Ragini Vittal
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Nahum Sonenberg
- Department of Biochemistry and McGill Cancer Center, McGill University, Montreal, Quebec, Canada
| | - Amanda L. Garner
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan, USA
| | - Vibha N. Lama
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
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6
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Grobman B, Diamond JM, Goldberg HJ, Courtwright AM. The Impact of Prelung Transplant HLA Antibodies on Post-transplant Outcomes in Recipients With Autoimmune Lung Disease. Transplant Proc 2024:S0041-1345(24)00438-X. [PMID: 39147614 DOI: 10.1016/j.transproceed.2024.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/27/2024] [Accepted: 06/27/2024] [Indexed: 08/17/2024]
Abstract
INTRODUCTION Patients with advanced lung disease who have HLA antibodies against potential donors have reduced opportunities for transplant. Not all HLA antibodies, however, have the same impact on post-transplant outcomes. It is unknown whether HLA antibodies arising in the context of autoimmune lung disease are associated with increased antibody mediated rejection (AMR) or bronchiolitis obliterans stage 1 (BOS1)-free survival. METHODS This study used retrospective data from SRTR to examine BOS1-free survival and AMR among sensitized recipients with autoimmune ILD compared to sensitization recipients with nonautoimmune ILD, accounting for other sources of sensitization such as pregnancy and blood transfusions. This study did not use organs from prisoners and participants were neither coerced nor paid. RESULTS Sensitized recipients with autoimmune ILD did not have differences in BOS1-free survival when adjusting for sensitizing exposures (HR = 0.90, 95% CI: 0.70-1.16) or clinical covariates (HR = 0.96, 95% CI: 0.83-1.12). There was also no difference in AMR (OR = 1.92, 95% CI: 1.04-3.52). CONCLUSIONS HLA antibodies arising in the context of autoimmune ILD do not appear to have a differential impact on BOS1-free survival or AMR. This provides further evidence that patients sensitized via autoimmune lung diseases do not require separate decision-making regarding HLA antibody status compared to the overall sensitized population.
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Affiliation(s)
| | - Joshua M Diamond
- Division of Pulmonary and Critical Care, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Hilary J Goldberg
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Andrew M Courtwright
- Division of Pulmonary and Critical Care, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania.
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7
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Choi D, North M, Ahmed M, Belousova N, Vasileva A, Matelski J, Singer LG, Wu JKY, Jeong CH, Evans G, Chow CW. Pollution exposure in the 1 st 3 months post transplant is associated with lower baseline FEV 1 and higher CLAD risk. J Heart Lung Transplant 2024:S1053-2498(24)01791-1. [PMID: 39142524 DOI: 10.1016/j.healun.2024.08.003] [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: 04/01/2024] [Revised: 06/27/2024] [Accepted: 08/05/2024] [Indexed: 08/16/2024] Open
Abstract
BACKGROUND Exposure to air pollution post lung transplant has been shown to decrease graft and patient survival. This study examines the impact of air pollution exposure in the first 3 months post-transplant on baseline (i.e. highest) forced expiratory volume in 1s (FEV1) achieved and development of chronic lung allograft dysfunction (CLAD). METHODS Double-lung transplant recipients (n=82) were prospectively enrolled for comprehensive indoor and personal environmental monitoring at 6- and 12-weeks post-transplant and followed for >4 years. Associations between clinical and exposure variables were investigated using an exposomics approach followed by analysis with a Cox Proportional Hazards model. Multivariable analyses were used to examine the impact of air pollution on baseline % predicted FEV1 (defined as the average of the 2 highest values achieved post-transplant) and risk of CLAD. RESULTS Multivariable analysis revealed a significant inverse relationship between personal black carbon (BC) levels and baseline % FEV1. The multivariable model indicated that patients with higher-than-median exposure to BC (>350 ng/m3) attained a baseline % FEV1 that was 8.8% lower than those with lower-than-median BC exposure (p = 0.019). Cox proportional hazards model analysis revealed that patients with high personal BC exposure had a 2.4 times higher hazard risk for CLAD than patients with low BC exposure (p = 0.045). CONCLUSIONS Higher personal BC levels during the first 3 months post-transplant decreases baseline FEV1 and doubles the risk of CLAD. Strategies to reduce BC exposure early following lung transplant may help improve lung function and long-term outcomes.
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Affiliation(s)
- Denny Choi
- Division of Respirology, Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Michelle North
- Division of Respirology, Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Chemical Engineering & Applied Chemistry, Faculty of Applied Sciences and Engineering, University of Toronto, Toronto, Ontario, Canada; Southern Ontario Centre for Atmospheric Aerosol Research, University of Toronto, Toronto, Ontario, Canada
| | - Musawir Ahmed
- Division of Respirology, Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Natalia Belousova
- Division of Respirology, Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Anastasiia Vasileva
- Division of Respirology, Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - John Matelski
- Biostatistics Research Unit, University Health Network, Toronto, Ontario, Canada
| | - Lianne G Singer
- Division of Respirology, Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Toronto Lung Transplant Program, Ajmera Multi-Organ Transplant Unit, University Health Network, Toronto, Ontario, Canada
| | - Joyce K Y Wu
- Division of Respirology, Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Cheol-Heon Jeong
- Chemical Engineering & Applied Chemistry, Faculty of Applied Sciences and Engineering, University of Toronto, Toronto, Ontario, Canada; Southern Ontario Centre for Atmospheric Aerosol Research, University of Toronto, Toronto, Ontario, Canada
| | - Greg Evans
- Chemical Engineering & Applied Chemistry, Faculty of Applied Sciences and Engineering, University of Toronto, Toronto, Ontario, Canada; Southern Ontario Centre for Atmospheric Aerosol Research, University of Toronto, Toronto, Ontario, Canada
| | - Chung-Wai Chow
- Division of Respirology, Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Chemical Engineering & Applied Chemistry, Faculty of Applied Sciences and Engineering, University of Toronto, Toronto, Ontario, Canada; Southern Ontario Centre for Atmospheric Aerosol Research, University of Toronto, Toronto, Ontario, Canada; Toronto Lung Transplant Program, Ajmera Multi-Organ Transplant Unit, University Health Network, Toronto, Ontario, Canada.
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8
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Bery AI, Belousova N, Hachem RR, Roux A, Kreisel D. Chronic Lung Allograft Dysfunction: Clinical Manifestations and Immunologic Mechanisms. Transplantation 2024:00007890-990000000-00842. [PMID: 39104003 DOI: 10.1097/tp.0000000000005162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
The term "chronic lung allograft dysfunction" has emerged to describe the clinical syndrome of progressive, largely irreversible dysfunction of pulmonary allografts. This umbrella term comprises 2 major clinical phenotypes: bronchiolitis obliterans syndrome and restrictive allograft syndrome. Here, we discuss the clinical manifestations, diagnostic challenges, and potential therapeutic avenues to address this major barrier to improved long-term outcomes. In addition, we review the immunologic mechanisms thought to propagate each phenotype of chronic lung allograft dysfunction, discuss the various models used to study this process, describe potential therapeutic targets, and identify key unknowns that must be evaluated by future research strategies.
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Affiliation(s)
- Amit I Bery
- Division of Pulmonary and Critical Care Medicine, Washington University School of Medicine, St. Louis, MO
| | - Natalia Belousova
- Pneumology, Adult Cystic Fibrosis Center and Lung Transplantation Department, Foch Hospital, Suresnes, France
| | - Ramsey R Hachem
- Division of Respiratory, Critical Care, and Occupational Pulmonary Medicine, University of Utah School of Medicine, Salt Lake City, UT
| | - Antoine Roux
- Pneumology, Adult Cystic Fibrosis Center and Lung Transplantation Department, Foch Hospital, Suresnes, France
- Paris Transplant Group, INSERM U970s, Paris, France
| | - Daniel Kreisel
- Department of Surgery, Washington University School of Medicine, St. Louis, MO
- Department of Pathology & Immunology, Washington University School of Medicine, St. Louis, MO
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9
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Coppens A, Verleden SE, Claes E, Voet H, Verleden GM, Lapperre TS, Yildirim AÖ, Jungraithmayr W, Yamada Y, Peeters DJE, Hendriks JMH. Murine orthotopic lung transplant models: A comprehensive overview of genetic mismatch degrees and histopathological insights into chronic lung allograft dysfunction. Am J Transplant 2024:S1600-6135(24)00460-X. [PMID: 39098448 DOI: 10.1016/j.ajt.2024.07.033] [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: 03/08/2024] [Revised: 07/18/2024] [Accepted: 07/29/2024] [Indexed: 08/06/2024]
Abstract
Currently, lung transplantation outcome remains inferior compared to other solid organ transplantations. A major cause for limited survival after lung transplantation is chronic lung allograft dysfunction. Numerous animal models have been developed to investigate chronic lung allograft dysfunction to discover adequate treatments. The murine orthotopic lung transplant model has been further optimized over the last years. However, different degrees of genetic mismatch between donor and recipient mice have been used, applying a single, minor, moderate, and major genetic mismatch. This review aims to reassess the existing murine mismatch models and provide a comprehensive overview, with a specific focus on their eventual histopathological presentation. This will be crucial to leverage this model and tailor it according to specific research needs.
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Affiliation(s)
- Axelle Coppens
- Department of Antwerp Surgical Training, Anatomy and Research Centre, University of Antwerp, Wilrijk, Belgium; Department of Thoracic and Vascular Surgery, University Hospital of Antwerp, Edegem, Belgium
| | - Stijn E Verleden
- Department of Antwerp Surgical Training, Anatomy and Research Centre, University of Antwerp, Wilrijk, Belgium; Department of Thoracic and Vascular Surgery, University Hospital of Antwerp, Edegem, Belgium; Department of Pulmonology, University Hospital of Antwerp, Edegem, Belgium
| | - Erik Claes
- Department of Antwerp Surgical Training, Anatomy and Research Centre, University of Antwerp, Wilrijk, Belgium; Department of Thoracic and Vascular Surgery, University Hospital of Antwerp, Edegem, Belgium
| | - Hanne Voet
- Department of Antwerp Surgical Training, Anatomy and Research Centre, University of Antwerp, Wilrijk, Belgium; Department of Pulmonology, University Hospital of Antwerp, Edegem, Belgium
| | - Geert M Verleden
- Department of Pulmonology, University Hospital of Antwerp, Edegem, Belgium
| | - Therese S Lapperre
- Department of Pulmonology, University Hospital of Antwerp, Edegem, Belgium; Laboratory of Experimental Medicine and Pediatrics, Division of Respiratory Medicine, University of Antwerp, Wilrijk, Belgium
| | - Ali Ö Yildirim
- Divison of Immunopathology in COPD, Institute of Lung Health and Immunity, Comprehensive Pneumology Center, Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany; Division of Immunopathologu in COPD, Institute of Experimental Pneumology, University Hospital, Ludwig-Maximilians University, Munich, Germany
| | - Wolfgang Jungraithmayr
- Department of Thoracic Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Yoshito Yamada
- Department of Thoracic Surgery, Kyoto University Hospital, Kyoto, Japan; Department of Thoracic Surgery, Kyoto Katsura Hospital, Kyoto, Japan
| | - Dieter J E Peeters
- Department of Pathology, University Hospital of Antwerp, Edegem, Belgium
| | - Jeroen M H Hendriks
- Department of Antwerp Surgical Training, Anatomy and Research Centre, University of Antwerp, Wilrijk, Belgium; Department of Thoracic and Vascular Surgery, University Hospital of Antwerp, Edegem, Belgium.
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10
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Narula T, Alvarez F, Abdelmoneim Y, Erasmus D, Li Z, Elrefaei M. Induction immunosuppression strategies and outcomes post-lung transplant: A single center experience. Transpl Immunol 2024; 85:102081. [PMID: 38986916 DOI: 10.1016/j.trim.2024.102081] [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: 04/05/2024] [Revised: 07/03/2024] [Accepted: 07/07/2024] [Indexed: 07/12/2024]
Abstract
PURPOSE Currently 80% of lung transplant centers use induction immunosuppression. However, there is a lack of standardization of induction protocols within and across lung transplant centers. This study explores the association of two different induction immunosuppression strategies used at our center [single dose rabbit antithymocyte globulin (rATG) vs. alemtuzumab] compared to no induction with immunologic and clinical outcomes after lung transplantation. METHODS A total of 174 consecutive lung transplant recipients (LTR) between 2016 and 2019 were included in the analysis. Twenty nine LTR (16.7%) received no induction, 22 LTR (12.6%) received alemtuzumab, 123 LTR (70.6%) received a single dose of rATG; 1.5 mg/kg within 24 h of transplant for induction. All LTR had a negative flow cytometry crossmatch on the day of the transplant. All LTR were assessed for de novo HLA donor-specific antibodies (DSA) development and clinical outcomes, including the risk of acute cellular rejection (ACR), antibody-mediated rejection (AMR), chronic lung allograft dysfunction (CLAD), and overall survival post-transplant. RESULTS The median lung allocation score (LAS) was significantly higher in LTR that did not receive Induction immunosuppression (76; range = 35.3-94.3) compared to induction with rATG (41.6; range = 31.6-91) and alemtuzumab (51; range = 33.1-88.2) (p < 0.001). De novo HLA DSA were detected in 50/174 (28.7%) LTR within 12 months post-transplant. They were detected in 13/29 (44.8%) LTR without induction immunosuppression compared to 28/123 (22.8%) and 9/22 (40.9%) LTR with rATG and alemtuzumab induction, respectively (p = 0.02). The percent freedom from ACR rates between LTR who received alemtuzumab induction was significantly higher compared to LTR who received rATG or no induction at 1 (p = 0.02), 2 (p = 0.01) and 3 (p = 0.05) years post-transplant. In addition, the overall 1-year survival rates were significantly higher in LTR who received rATG or alemtuzumab induction compared to LTR without induction immunosuppression (p = 0.02). CONCLUSION Induction immunosuppression strategies utilizing rATG or Alemtuzumab have unique and contrasting benefits in LTR. Combination of alemtuzumab induction and a lower dose of maintenance immunosuppression may reduce the incidence of ACR in LTR. Single-dose rATG or alemtuzumab induction immunosuppression may also improve the 1 year overall LTR survival compared to no induction.
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Affiliation(s)
- Tathagat Narula
- Division of Lung Failure and Transplant, Mayo Clinic, Jacksonville, FL, United States of America
| | - Francisco Alvarez
- Division of Lung Failure and Transplant, Mayo Clinic, Jacksonville, FL, United States of America
| | - Yousif Abdelmoneim
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, FL, United States of America
| | - David Erasmus
- Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University, Nashville, TN, United States of America
| | - Zhuo Li
- Health Sciences Research, Mayo Clinic, Jacksonville, FL, United States of America
| | - Mohamed Elrefaei
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, FL, United States of America.
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11
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Napoli C, Benincasa G, Fiorelli A, Strozziero MG, Costa D, Russo F, Grimaldi V, Hoetzenecker K. Lung transplantation: Current insights and outcomes. Transpl Immunol 2024; 85:102073. [PMID: 38889844 DOI: 10.1016/j.trim.2024.102073] [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: 11/16/2023] [Revised: 06/10/2024] [Accepted: 06/14/2024] [Indexed: 06/20/2024]
Abstract
Until now, the ability to predict or retard immune-mediated rejection events after lung transplantation is still limited due to the lack of specific biomarkers. The pressing need remains to early diagnose or predict the onset of chronic lung allograft dysfunction (CLAD) and its differential phenotypes that is the leading cause of death. Omics technologies (mainly genomics, epigenomics, and transcriptomics) combined with advanced bioinformatic platforms are clarifying the key immune-related molecular routes that trigger early and late events of lung allograft rejection supporting the biomarker discovery. The most promising biomarkers came from genomics. Both unregistered and NIH-registered clinical trials demonstrated that the increased percentage of donor-derived cell-free DNA in both plasma and bronchoalveolar lavage fluid showed a good diagnostic performance for clinically silent acute rejection events and CLAD differential phenotypes. A further success arose from transcriptomics that led to development of Molecular Microscope® Diagnostic System (MMDx) to interpret the relationship between molecular signatures of lung biopsies and rejection events. Other immune-related biomarkers of rejection events may be exosomes, telomer length, DNA methylation, and histone-mediated neutrophil extracellular traps (NETs) but none of them entered in registered clinical trials. Here, we discuss novel and existing technologies for revealing new immune-mediated mechanisms underlying acute and chronic rejection events, with a particular focus on emerging biomarkers for improving precision medicine of lung transplantation field.
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Affiliation(s)
- Claudio Napoli
- Department of Advanced Medical and Surgical Sciences (DAMSS), University of Campania "Luigi Vanvitelli", 80138 Naples, Italy; U.O.C. Division of Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Clinical Department of Internal Medicine and Specialistics, University of Campania "L. Vanvitelli,", Naples, Italy
| | - Giuditta Benincasa
- Department of Advanced Medical and Surgical Sciences (DAMSS), University of Campania "Luigi Vanvitelli", 80138 Naples, Italy.
| | - Alfonso Fiorelli
- Thoracic Surgery Unit, Department of Translation Medicine, University of Campania "L. Vanvitelli", Naples, Italy
| | | | - Dario Costa
- U.O.C. Division of Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Clinical Department of Internal Medicine and Specialistics, University of Campania "L. Vanvitelli,", Naples, Italy
| | | | - Vincenzo Grimaldi
- U.O.C. Division of Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Clinical Department of Internal Medicine and Specialistics, University of Campania "L. Vanvitelli,", Naples, Italy
| | - Konrad Hoetzenecker
- Department of Thoracic Surgery, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
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12
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Shanthikumar S, Gower WA, Cooke KR, Bergeron A, Schultz KR, Barochia A, Tamae-Kakazu M, Charbek E, Reardon EE, Calvo C, Casey A, Cheng PC, Cole TS, Davies SM, Das S, De A, Deterding RR, Liptzin DR, Mechinaud F, Rayment JH, Robinson PD, Siddaiah R, Stone A, Srinivasin S, Towe CT, Yanik GA, Iyer NP, Goldfarb SB. Diagnosis of Post-Hematopoietic Stem Cell Transplantation Bronchiolitis Obliterans Syndrome in Children: Time for a Rethink? Transplant Cell Ther 2024; 30:760-769. [PMID: 38897861 DOI: 10.1016/j.jtct.2024.05.012] [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: 03/06/2024] [Revised: 04/28/2024] [Accepted: 05/13/2024] [Indexed: 06/21/2024]
Abstract
Hematopoietic stem cell transplantation (HSCT) is undertaken in children with the aim of curing a range of malignant and nonmalignant conditions. Unfortunately, pulmonary complications, especially bronchiolitis obliterans syndrome (BOS), are significant sources of morbidity and mortality post-HSCT. Currently, criteria developed by a National Institutes of Health (NIH) working group are used to diagnose BOS in children post-HSCT. Unfortunately, during the development of a recent American Thoracic Society (ATS) Clinical Practice Guideline on this topic, it became apparent that the NIH criteria have significant limitations in the pediatric population, leading to late diagnosis of BOS. Specific limitations include use of an outdated pulmonary function testing reference equation, a reliance on spirometry, use of a fixed forced expiratory volume in 1 second (FEV1) threshold, focus on obstructive defects defined by FEV1/vital capacity, and failure to acknowledge that BOS and infection can coexist. In this review, we summarize the evidence regarding the limitations of the current criteria. We also suggest potential evidence-based ideas for improving these criteria. Finally, we highlight a new proposed criteria for post-HSCT BOS in children that were developed by the authors of the recently published ATS clinical practice guideline, along with a pathway forward for improving timely diagnosis of BOS in children post-HSCT.
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Affiliation(s)
- Shivanthan Shanthikumar
- Respiratory and Sleep Medicine, Royal Children's Hospital, Melbourne, Australia; Respiratory Diseases, Murdoch Children's Research Institute, Melbourne, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Australia.
| | - William A Gower
- Division of Pulmonology, Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Kenneth R Cooke
- Department of Oncology, Pediatric Blood and Marrow Transplantation Program, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, Maryland
| | - Anne Bergeron
- Pneumology Department, Geneva University Hospitals, University of Geneva, Geneva, Switzerland
| | - Kirk R Schultz
- Pediatric Hematology/Oncology/BMT, BC Children's Research Institute/UBC, Vancouver, British Columbia, Canada
| | - Amisha Barochia
- Laboratory of Asthma and Lung Inflammation, Critical Care Medicine and Pulmonary Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland
| | - Maximiliano Tamae-Kakazu
- Division of Pulmonary and Critical Care, Corewell Health, Grand Rapids, Michigan; Department of Medicine, Michigan State University College of Human Medicine, Michigan
| | - Edward Charbek
- Department of Internal Medicine, Saint Louis University, St Louis, Missouri
| | - Erin E Reardon
- Woodruff Health Sciences Center Library, Emory University, Atlanta, Georgia
| | - Charlotte Calvo
- Pediatric Hematology and Immunology Department, Robert Debré Hospital, Paris Cité University, Paris, France; Human Immunology, Pathophysiology and Immunotherapy, INSERM UMR-976, Institut de Recherche Saint-Louis, Paris, France
| | - Alicia Casey
- Division of Pulmonary Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Pi Chun Cheng
- Division of Pediatric Pulmonology, Allergy, and Sleep Medicine, Riley Hospital for Children, Indianapolis, Indiana; Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Theresa S Cole
- Department of Paediatrics, University of Melbourne, Melbourne, Australia; Children's Cancer Centre, Royal Children's Hospital, Melbourne, Australia; Infection & immunity, Murdoch Children's Research Institute, Melbourne, Australia
| | - Stella M Davies
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Shailendra Das
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Alive De
- Division of Pediatric Pulmonology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, New York
| | - Robin R Deterding
- Chief Pediatric Pulmonary and Sleep Medicine, University of Colorado and Children's Hospital Colorado, Aurora, Colorado
| | - Deborah R Liptzin
- Department of Pediatrics, University of Washington School of Medicine, Seattle, Washington
| | - Francoise Mechinaud
- Pediatric Hematology and Immunology Department, Robert Debré Hospital, Paris Cité University, Paris, France
| | - Jonathan H Rayment
- Division of Respiratory Medicine, BC Children's Hospital, Vancouver, Canada; Department of Pediatrics, University of British Columbia, Vancouver, Canada
| | - Paul D Robinson
- Department of Respiratory Medicine, Queensland Children's Hospital, Queensland, Australia; Children's Health and Environment Program, Child Health Research Centre, University of Queensland, Queensland, Australia; Airway Physiology and Imaging Group, Woolcock Institute of Medical Research, New South Wales, Australia
| | - Roopa Siddaiah
- Division of Pulmonology, Department of Pediatrics, Penn State Health Children's Hospital, Hershey, Pennsylvania
| | - Anne Stone
- Division of Pediatric Pulmonology, Department of Pediatrics, Oregon Health & Science University, Portland, Oregon
| | - Saumini Srinivasin
- Department of Pediatrics, University of Tennessee College of Medicine, Le Bonheur Children's Hospital, Memphis, Tennessee
| | - Christopher T Towe
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio; Division of Pulmonary Medicine, Cincinnati Children's Hospital, Cincinnati, Ohio
| | - Gregory A Yanik
- Blood and Marrow Transplant Program, University of Michigan, Ann Arbor, Michigan
| | - Narayan P Iyer
- Division of Neonatology, Fetal and Neonatal Institute, Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Samuel B Goldfarb
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota; Division of Pulmonary Medicine, Masonic Children's Hospital, Minneapolis, Minnesota
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13
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Fredrick SR, Iasella CJ, Sacha LM, Rivosecchi RM, Morrell MR, Sanchez PG, Pilewski JM, Snyder ME, McDyer JF, Moore CA. Incidence of Acute Cellular Rejection After Granulocyte Colony-Stimulating Factor in Lung Transplant Recipients. J Pharm Pract 2024; 37:830-837. [PMID: 37345293 DOI: 10.1177/08971900231184308] [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] [Indexed: 06/23/2023]
Abstract
BackgroundNeutropenia is a common complication in lung transplant recipients (LTRs). Filgrastim may be used to treat neutropenia in LTRs, but its consequences on acute cellular rejection (ACR) remain controversial. Objective: The purpose was to examine the association between filgrastim and incidence of ACR 6 months after filgrastim administration in LTRs. Secondary outcomes included burden of ACR, infections, chronic lung allograft dysfunction (CLAD), and survival. Methods: This was a matched cohort study of patients transplanted between January 2010 and October 2019. LTRs who received filgrastim for neutropenia were compared to a cohort who did not. LTRs were matched on transplant indication, sex, age, and time post-transplant and multivariable logistic regression models were used to evaluate the likelihood of ACR. Results: 212 patients were included in the analysis (106 in each group). 50 patients (47.2%) in the filgrastim group experienced ACR compared to 37 patients (34.9%) in the no filgrastim group (P = .070). In multivariable analysis, filgrastim use was not associated with ACR at 6 months (OR 1.409, 95% CI 0.772-2.571). Time to first ACR was shorter (P = .049) and 6-month ACR score was higher in the filgrastim group (.49 vs .33, P = .047). LTRs in the filgrastim group had higher incidence of bacterial pneumonia and 1-year mortality. Conclusions: Although not associated with increased likelihood of ACR at 6 months, our study found that filgrastim is associated with increased ACR burden and decreased time to ACR. This study can help inform clinicians of ACR risk after filgrastim use in LTRs.
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Affiliation(s)
- Stacy R Fredrick
- Department of Pharmacy, University of Rochester Medical Center, Rochester, NY, USA
| | - Carlo J Iasella
- Department of Pharmacy, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
- Department of Pharmacy and Therapeutics, University of Pittsburgh School of Pharmacy, Pittsburgh, PA, USA
- Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Lauren M Sacha
- Department of Pharmacy, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Ryan M Rivosecchi
- Department of Pharmacy, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Matthew R Morrell
- Division of Pulmonary Medicine, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Pablo G Sanchez
- Division of Lung Transplant and Lung Failure, Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Joseph M Pilewski
- Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Mark E Snyder
- Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - John F McDyer
- Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Cody A Moore
- Department of Pharmacy, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
- Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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14
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Kühner LM, Berger SM, Djinovic M, Furlano PL, Steininger LM, Pirker AL, Jaksch P, Puchhammer-Stöckl E, Vietzen H. Immunomodulatory soluble HLA-G and HLA-E are associated with rapidly deteriorating CLAD and HCMV viremia after lung transplantation. J Heart Lung Transplant 2024:S1053-2498(24)01747-9. [PMID: 39059595 DOI: 10.1016/j.healun.2024.07.014] [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: 01/19/2024] [Revised: 06/11/2024] [Accepted: 07/16/2024] [Indexed: 07/28/2024] Open
Abstract
Plasma-soluble (s)HLA-G and sHLA-E are immunoregulatory proteins that balance the activation of NKG2A+ immune cells. In lung-transplant recipients (LTRs), dysregulated NKG2A+ natural killer cell responses may result in high-level human cytomegalovirus (HCMV) replication as well as chronic lung allograft dysfunction (CLAD), and especially the development of rapidly deteriorating CLAD is associated with high mortality. We thus analyzed the kinetics and function of sHLA-G and sHLA-E in follow-up samples of N = 76 LTRs to evaluate whether these immunoregulatory proteins are associated with the risk for CLAD and high-level HCMV replication. Here, we demonstrate that rapidly deteriorating CLAD LTRs are hallmarked by continually low (<107 ng/ml) sHLA-G levels. In contrast, high sHLA-E levels were associated with the following development of high-level (>1,000 copies/ml) HCMV episodes. Thus, sHLA-G and sHLA-E may serve as novel biomarkers for the development of rapidly deteriorating CLAD and high-level HCMV replication in LTRs.
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Affiliation(s)
- Laura M Kühner
- Center of Virology, Medical University Vienna, Vienna, Austria
| | - Sarah M Berger
- Center of Virology, Medical University Vienna, Vienna, Austria
| | - Mila Djinovic
- Center of Virology, Medical University Vienna, Vienna, Austria
| | | | | | | | - Peter Jaksch
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | | | - Hannes Vietzen
- Center of Virology, Medical University Vienna, Vienna, Austria.
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15
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Yamaguchi M, Kawashima M, Muraoka T, Yamaya T, Cong Y, Nakao K, Nagano M, Konoeda C, Kage H, Sato M. Baseline lung allograft dysfunction after bilateral deceased-donor lung transplantation: A single-center experience in Japan. Respir Investig 2024; 62:838-843. [PMID: 39047315 DOI: 10.1016/j.resinv.2024.07.009] [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: 05/16/2024] [Revised: 07/09/2024] [Accepted: 07/15/2024] [Indexed: 07/27/2024]
Abstract
BACKGROUND Baseline lung allograft dysfunction (BLAD) refers to a condition in which a lung transplant recipient does not achieve normal pulmonary function (i.e., forced expiratory volume in 1 s or forced vital capacity of <80% of predicted values). Although BLAD is reportedly associated with a poor prognosis, the condition has not been examined in Japanese patients. METHODS In this study, we retrospectively examined 38 Japanese adults who underwent bilateral lung transplantation from 2015 to 2022 in a single center. RESULTS Twenty-one (55%) patients met the criteria for BLAD. No significant differences were found in recipient or donor factors between the BLAD and non-BLAD groups, but the donor-recipient ratio of the predicted vital capacity was lower in the BLAD group (p = 0.009). The intensive care unit length of stay, ventilator duration, and blood loss during transplant surgery were significantly higher in the BLAD group (p < 0.05). No significant difference was found in survival. The median observation period was significantly shorter in the BLAD than non-BLAD group (744 vs.1192 days, respectively; p = 0.031). The time to reach the normal threshold of pulmonary function after lung transplantation varied among the patients, ranging from 6 months to 4 years. CONCLUSIONS The characteristics of these Japanese patients with BLAD were similar to those of other patients in previous reports. The effects of the observation period and donor-recipient age discrepancy on BLAD require further exploration.
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Affiliation(s)
- Miho Yamaguchi
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan; Department of Respiratory Medicine, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Mitsuaki Kawashima
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Tatsuya Muraoka
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Takafumi Yamaya
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Yue Cong
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Keita Nakao
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Masaaki Nagano
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Chihiro Konoeda
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Hidenori Kage
- Department of Respiratory Medicine, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Masaaki Sato
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan.
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16
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Swartz K, Mansour A, Alsunaid S. Lung Transplant for Chronic Obstructive Pulmonary Disease. Semin Respir Crit Care Med 2024. [PMID: 39029509 DOI: 10.1055/s-0044-1787560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2024]
Abstract
Chronic obstructive pulmonary disease (COPD) carries a high burden of morbidity and mortality to patient and a high cost to health care systems. Lung transplantation is a last resort available for end-stage COPD patients interested in pursuing it and meeting the strict transplant requirements. It requires commitment from patients and their loved ones to support them through this tough process. This review will cover history of transplant, indications, candidate selection, evaluation testing, transplant listing, type of transplant (single versus bilateral), posttransplant complications, immunosuppression, and rejection. It is tailored to the COPD patient when applicable; however, many aspects of lung transplantation are shared amongst all lung diseases eligible for transplant.
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Affiliation(s)
- Kyle Swartz
- Department of Pulmonary and Critical Care Medicine, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York
| | - Ali Mansour
- Department of Cardiovascular and Thoracic Surgery, Montefiore Medical Center, Bronx, New York
- Department of Cardiovascular & Thoracic Surgery, Albert Einstein College of Medicine, Bronx, New York
| | - Sammar Alsunaid
- Department of Cardiovascular and Thoracic Surgery, Montefiore Medical Center, Bronx, New York
- Department of Cardiovascular & Thoracic Surgery, Albert Einstein College of Medicine, Bronx, New York
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17
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Morlacchi LC, Alicandro G, Uceda Renteria S, Zignani N, Giacomel G, Rossetti V, Sagasta M, Citterio G, Lombardi A, Dibenedetto C, Antonelli B, Rosso L, Lampertico P, Ceriotti F, Blasi F, Donato MF. COVID-19 Vaccine in Lung and Liver Transplant Recipients Exceeds Expectations: An Italian Real-Life Experience on Immunogenicity and Clinical Efficacy of BNT162b2 Vaccine. Transpl Int 2024; 37:12729. [PMID: 39050189 PMCID: PMC11266016 DOI: 10.3389/ti.2024.12729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 06/24/2024] [Indexed: 07/27/2024]
Abstract
This study assessed humoral and T cell-mediated immune responses to the BNT162b2 vaccine in orthotopic liver transplant (OLT) and lung transplant (LUT) recipients who received three doses of the vaccine from March 2021 at our institution. Serum samples were collected 60 days post-second and third dose to quantify antibodies against the spike region of SARS-CoV-2 while whole blood samples were collected to analyze the SARS-CoV-2-specific T-cell response using an IFN-γ ELISpot assay. We enrolled 244 OLT and 120 LUT recipients. The third dose increased antibody titres in OLT recipients (from a median value of 131 after the second dose to 5523 IU/mL, p < 0.001) and LUT recipients (from 14.8 to 1729 IU/mL, p < 0.001). T-cell response also increased in OLT recipients (from 8.5 to 23 IFN-γ SFU per 250,000 PBMC, p < 0.001) and LUT recipients (from 8 to 15 IFN-γ SFU per 250,000 PBMC, p < 0.001). A total of 128 breakthrough infections were observed: two (0.8%) OLT recipients were hospitalized due to COVID-19 and one died (0.4%); among LUT recipients, seven were hospitalized (5.8%) and two patients died (1.7%). In conclusion, the three-dose schedule of the BNT162b2 vaccine elicited both humoral and T cell-mediated responses in solid organ transplant recipients. The risk of severe COVID-19 post-vaccination was low in this population.
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Affiliation(s)
- Letizia Corinna Morlacchi
- Respiratory Unit and Adult Cystic, Fibrosis Centre, Internal Medicine Department, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milano, Italy
| | - Gianfranco Alicandro
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milano, Italy
- Department of Pediatrics, Cystic Fibrosis Centre, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Sara Uceda Renteria
- Division of Clinical Pathology, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy
| | - Nunzio Zignani
- Division of Gastroenterology and Hepatology, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy
| | - Giovanni Giacomel
- Division of Clinical Pathology, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy
| | - Valeria Rossetti
- Respiratory Unit and Adult Cystic, Fibrosis Centre, Internal Medicine Department, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy
| | - Michele Sagasta
- Division of Gastroenterology and Hepatology, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy
| | - Gaia Citterio
- Respiratory Unit and Adult Cystic, Fibrosis Centre, Internal Medicine Department, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy
| | - Andrea Lombardi
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milano, Italy
- Department of Pediatrics, Cystic Fibrosis Centre, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Clara Dibenedetto
- Division of Gastroenterology and Hepatology, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy
| | - Barbara Antonelli
- General Surgery—Liver Transplant Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Lorenzo Rosso
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milano, Italy
- Thoracic Surgery and Lung Transplant Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy
| | - Pietro Lampertico
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milano, Italy
- Division of Gastroenterology and Hepatology, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy
| | - Ferruccio Ceriotti
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milano, Italy
- Division of Clinical Pathology, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy
| | - Francesco Blasi
- Respiratory Unit and Adult Cystic, Fibrosis Centre, Internal Medicine Department, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milano, Italy
| | - Maria Francesca Donato
- Division of Gastroenterology and Hepatology, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy
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18
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Beauchamp-Parent C, Jomphe V, Morisset J, Poirier C, Lands LC, Nasir BS, Ferraro P, Mailhot G. Impact of Transplant Body Mass Index and Post-Transplant Weight Changes on the Development of Chronic Lung Allograft Dysfunction Phenotypes. Transplant Proc 2024:S0041-1345(24)00356-7. [PMID: 38991901 DOI: 10.1016/j.transproceed.2024.04.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 04/26/2024] [Indexed: 07/13/2024]
Abstract
INTRODUCTION Chronic lung allograft dysfunction (CLAD) is a lung transplant complication for which four phenotypes are recognized: Bronchiolitis obliterans syndrome (BOS), Restrictive allograft syndrome (RAS), mixed and undefined phenotypes. Weight gain is common after transplant and may negatively impact lung function. Study objectives were to describe post-transplant weight trajectories of patients who developed (or did not) CLAD phenotypes and examine the associations between BMI at transplant, post-transplant changes in weight and BMI, and the risk of developing these phenotypes. METHODS Adults who underwent a bilateral lung transplant between 2000 and 2020 at our institution were categorized as having (or not) one of the four CLAD phenotypes based on the proposed classification system. Demographic, anthropometric, and clinical data were retrospectively collected from medical records and analyzed. RESULTS Study population included 579 recipients (412 [71.1%] CLAD-free, 81 [14.0%] BOS, 20 [3.5%] RAS, 59 [10.2%] mixed, and 7 [1.2%] undefined phenotype). Weight gains of greater amplitude were seen in recipients with restrictive phenotypes than CLAD-free and BOS patients within the first five years post-transplant. While the BMI category at transplant was not statistically associated with the risk of developing CLAD phenotypes, an increase in weight (Hazard ratio [HR]: 1.04, 95% CI [1.01-1.08]; P = .008) and BMI (HR: 1.13, 95% CI [1.03-1.23]; P = .008) over the post-transplant period was associated with a greater risk of RAS. CONCLUSION Post-LTx gain in weight and BMI modestly increased the risk of RAS, adding to the list of unfavorable outcomes associated with weight gain following transplant.
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Affiliation(s)
- Caroline Beauchamp-Parent
- Department of Nutrition, Faculty of Medicine, Université de Montreal, Montreal, Quebec, Canada; Lung Transplant Program, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Valérie Jomphe
- Lung Transplant Program, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Julie Morisset
- Lung Transplant Program, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada; Department of Medicine, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Charles Poirier
- Lung Transplant Program, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada; Department of Medicine, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Larry C Lands
- Lung Transplant Program, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada; Department of Pediatrics, Faculty of Medicine, McGill University Health Center, Montreal, Quebec, Canada
| | - Basil S Nasir
- Lung Transplant Program, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada; Division of Thoracic Surgery, Department of Surgery, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Pasquale Ferraro
- Lung Transplant Program, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada; Division of Thoracic Surgery, Department of Surgery, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada
| | - Geneviève Mailhot
- Department of Nutrition, Faculty of Medicine, Université de Montreal, Montreal, Quebec, Canada; Research Centre, CHU Sainte-Justine, Montreal, Quebec, Canada.
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19
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Calabrese DR. Of rivers, recipients and rejection: Revelations from deep immune phenotyping of lung allograft transbronchial biopsy tissue. J Heart Lung Transplant 2024:S1053-2498(24)01731-5. [PMID: 38986971 DOI: 10.1016/j.healun.2024.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Accepted: 07/02/2024] [Indexed: 07/12/2024] Open
Affiliation(s)
- Daniel R Calabrese
- Department of Medicine, University of California, San Francisco, California; Department of Medicine, San Francisco Veterans Affairs Medical Center, San Francisco, California.
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20
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Bogyó LZ, Török K, Illés Z, Szilvási A, Székely B, Bohács A, Pipek O, Madurka I, Megyesfalvi Z, Rényi-Vámos F, Döme B, Bogos K, Gieszer B, Bakos E. Pseudomonas aeruginosa infection correlates with high MFI donor-specific antibody development following lung transplantation with consequential graft loss and shortened CLAD-free survival. Respir Res 2024; 25:262. [PMID: 38951782 PMCID: PMC11218249 DOI: 10.1186/s12931-024-02868-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 06/05/2024] [Indexed: 07/03/2024] Open
Abstract
BACKGROUND Donor-specific antibodies (DSAs) are common following lung transplantation (LuTx), yet their role in graft damage is inconclusive. Mean fluorescent intensity (MFI) is the main read-out of DSA diagnostics; however its value is often disregarded when analyzing unwanted post-transplant outcomes such as graft loss or chronic lung allograft dysfunction (CLAD). Here we aim to evaluate an MFI stratification method in these outcomes. METHODS A cohort of 87 LuTx recipients has been analyzed, in which a cutoff of 8000 MFI has been determined for high MFI based on clinically relevant data. Accordingly, recipients were divided into DSA-negative, DSA-low and DSA-high subgroups. Both graft survival and CLAD-free survival were evaluated. Among factors that may contribute to DSA development we analyzed Pseudomonas aeruginosa (P. aeruginosa) infection in bronchoalveolar lavage (BAL) specimens. RESULTS High MFI DSAs contributed to clinical antibody-mediated rejection (AMR) and were associated with significantly worse graft (HR: 5.77, p < 0.0001) and CLAD-free survival (HR: 6.47, p = 0.019) compared to low or negative MFI DSA levels. Analysis of BAL specimens revealed a strong correlation between DSA status, P. aeruginosa infection and BAL neutrophilia. DSA-high status and clinical AMR were both independent prognosticators for decreased graft and CLAD-free survival in our multivariate Cox-regression models, whereas BAL neutrophilia was associated with worse graft survival. CONCLUSIONS P. aeruginosa infection rates are elevated in recipients with a strong DSA response. Our results indicate that the simultaneous interpretation of MFI values and BAL neutrophilia is a feasible approach for risk evaluation and may help clinicians when to initiate DSA desensitization therapy, as early intervention could improve prognosis.
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Affiliation(s)
- Levente Zoltán Bogyó
- Department of Thoracic Surgery, Semmelweis University and National Institute of Oncology, Rath Gyorgy u. 7-9, Budapest, 1122, Hungary
- National Korányi Institute of Pulmonology, Koranyi Frigyes ut 1, Budapest, 1121, Hungary
| | - Klára Török
- Department of Thoracic Surgery, Semmelweis University and National Institute of Oncology, Rath Gyorgy u. 7-9, Budapest, 1122, Hungary
- National Korányi Institute of Pulmonology, Koranyi Frigyes ut 1, Budapest, 1121, Hungary
| | - Zsuzsanna Illés
- Hungarian National Blood Transfusion Service, Budapest, Hungary
| | - Anikó Szilvási
- Hungarian National Blood Transfusion Service, Budapest, Hungary
| | - Bálint Székely
- Department of Thoracic Surgery, Semmelweis University and National Institute of Oncology, Rath Gyorgy u. 7-9, Budapest, 1122, Hungary
| | - Anikó Bohács
- Department of Pulmonology, Semmelweis University, Budapest, Hungary
| | - Orsolya Pipek
- Department of Thoracic Surgery, Semmelweis University and National Institute of Oncology, Rath Gyorgy u. 7-9, Budapest, 1122, Hungary
- Department of Physics of Complex Systems, Eotvos Loránd University, Budapest, Hungary
| | - Ildikó Madurka
- Department of Thoracic Surgery, Semmelweis University and National Institute of Oncology, Rath Gyorgy u. 7-9, Budapest, 1122, Hungary
- National Korányi Institute of Pulmonology, Koranyi Frigyes ut 1, Budapest, 1121, Hungary
| | - Zsolt Megyesfalvi
- Department of Thoracic Surgery, Semmelweis University and National Institute of Oncology, Rath Gyorgy u. 7-9, Budapest, 1122, Hungary
- National Korányi Institute of Pulmonology, Koranyi Frigyes ut 1, Budapest, 1121, Hungary
- Department of Thoracic Surgery, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Ferenc Rényi-Vámos
- Department of Thoracic Surgery, Semmelweis University and National Institute of Oncology, Rath Gyorgy u. 7-9, Budapest, 1122, Hungary
- National Korányi Institute of Pulmonology, Koranyi Frigyes ut 1, Budapest, 1121, Hungary
- National Institute of Oncology and National Tumor Biology Laboratory, Budapest, Hungary
| | - Balázs Döme
- Department of Thoracic Surgery, Semmelweis University and National Institute of Oncology, Rath Gyorgy u. 7-9, Budapest, 1122, Hungary
- National Korányi Institute of Pulmonology, Koranyi Frigyes ut 1, Budapest, 1121, Hungary
- Department of Thoracic Surgery, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
- National Institute of Oncology and National Tumor Biology Laboratory, Budapest, Hungary
- Department of Translational Medicine, Lund University, Lund, Sweden
| | - Krisztina Bogos
- National Korányi Institute of Pulmonology, Koranyi Frigyes ut 1, Budapest, 1121, Hungary.
| | - Balázs Gieszer
- Department of Thoracic Surgery, Semmelweis University and National Institute of Oncology, Rath Gyorgy u. 7-9, Budapest, 1122, Hungary.
- National Korányi Institute of Pulmonology, Koranyi Frigyes ut 1, Budapest, 1121, Hungary.
| | - Eszter Bakos
- Department of Thoracic Surgery, Semmelweis University and National Institute of Oncology, Rath Gyorgy u. 7-9, Budapest, 1122, Hungary
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21
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Keller MB, Sun J, Alnababteh M, Ponor L, D. Shah P, Mathew J, Kong H, Charya A, Luikart H, Aryal S, Nathan SD, Orens JB, Khush KK, Kyoo Jang M, Agbor-Enoh S. Baseline Lung Allograft Dysfunction After Bilateral Lung Transplantation Is Associated With an Increased Risk of Death: Results From a Multicenter Cohort Study. Transplant Direct 2024; 10:e1669. [PMID: 38953039 PMCID: PMC11216668 DOI: 10.1097/txd.0000000000001669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/02/2024] [Accepted: 05/04/2024] [Indexed: 07/03/2024] Open
Abstract
Background A prior single-center, retrospective cohort study identified baseline lung allograft dysfunction (BLAD) as a risk factor for death in bilateral lung transplant recipients. In this multicenter prospective cohort study, we test the association of BLAD with death in bilateral lung transplant recipients, identify clinical risk factors for BLAD, and assess its association with allograft injury on the molecular level. Methods This multicenter, prospective cohort study included 173 bilateral lung transplant recipients that underwent serial pulmonary function testing and plasma collection for donor-derived cell-free DNA at prespecified time points. BLAD was defined as failure to achieve ≥80% predicted for both forced expiratory volume in 1 s and forced vital capacity after lung transplant, on 2 consecutive measurements at least 3 mo apart. Results BLAD was associated with increased risk of death (hazard ratio, 1.97; 95% confidence interval [CI], 1.05-3.69; P = 0.03) but not chronic lung allograft dysfunction alone (hazard ratio, 1.60; 95% CI, 0.87-2.95; P = 0.13). Recipient obesity (odds ratio, 1.69; 95% CI, 1.15-2.80; P = 0.04) and donor age (odds ratio, 1.03; 95% CI, 1.02-1.05; P = 0.004) increased the risk of developing BLAD. Patients with BLAD did not demonstrate higher log10(donor-derived cell-free DNA) levels compared with no BLAD (slope [SE]: -0.0095 [0.0007] versus -0.0109 [0.0007]; P = 0.15). Conclusions BLAD is associated with an increased risk of death following lung transplantation, representing an important posttransplant outcome with valuable prognostic significance; however, early allograft specific injury on the molecular level does not increase the risk of BLAD, supporting further mechanistic insight into disease pathophysiology.
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Affiliation(s)
- Michael B. Keller
- Laborarory of Applied Precision Omics (APO), National Institutes of Health, Bethesda, MD
- Laboratory of Transplantation Genomics, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health, Bethesda, MD
- Genomic Research Alliance for Transplantation (GRAfT), Bethesda, MD
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, MD
- Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, MD
| | - Junfeng Sun
- Advanced Lung Disease Program and Lung Transplant Program, Inova Fairfax Hospital, Falls Church, VA
| | - Muhtadi Alnababteh
- Laborarory of Applied Precision Omics (APO), National Institutes of Health, Bethesda, MD
- Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, MD
| | - Lucia Ponor
- Genomic Research Alliance for Transplantation (GRAfT), Bethesda, MD
- Division of Hospital Medicine, Johns Hopkins Bayview Medical Center, Baltimore, MD
| | - Pali D. Shah
- Genomic Research Alliance for Transplantation (GRAfT), Bethesda, MD
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, MD
| | - Joby Mathew
- Genomic Research Alliance for Transplantation (GRAfT), Bethesda, MD
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, MD
| | - Hyesik Kong
- Laborarory of Applied Precision Omics (APO), National Institutes of Health, Bethesda, MD
- Laboratory of Transplantation Genomics, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health, Bethesda, MD
- Genomic Research Alliance for Transplantation (GRAfT), Bethesda, MD
| | - Ananth Charya
- Division of Pulmonary and Critical Care Medicine, University of Maryland Medical Center, Baltimore, MD
| | - Helen Luikart
- Genome Transplant Genomics (GTD), Stanford University School of Medicine, Palo Alto, CA
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Palo Alto, CA
- Department of Pathology, Stanford University School of Medicine, Palo Alto, CA
| | - Shambhu Aryal
- Genomic Research Alliance for Transplantation (GRAfT), Bethesda, MD
- Advanced Lung Disease Program and Lung Transplant Program, Inova Fairfax Hospital, Falls Church, VA
| | - Steven D. Nathan
- Genomic Research Alliance for Transplantation (GRAfT), Bethesda, MD
- Advanced Lung Disease Program and Lung Transplant Program, Inova Fairfax Hospital, Falls Church, VA
| | - Jonathan B. Orens
- Genomic Research Alliance for Transplantation (GRAfT), Bethesda, MD
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, MD
| | - Kiran K. Khush
- Genome Transplant Genomics (GTD), Stanford University School of Medicine, Palo Alto, CA
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Moon Kyoo Jang
- Laborarory of Applied Precision Omics (APO), National Institutes of Health, Bethesda, MD
- Laboratory of Transplantation Genomics, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health, Bethesda, MD
- Genomic Research Alliance for Transplantation (GRAfT), Bethesda, MD
| | - Sean Agbor-Enoh
- Laborarory of Applied Precision Omics (APO), National Institutes of Health, Bethesda, MD
- Laboratory of Transplantation Genomics, National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health, Bethesda, MD
- Genomic Research Alliance for Transplantation (GRAfT), Bethesda, MD
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, MD
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22
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Abdulqawi R, Alawwami M, Aldosari O, Aldosari Z, Alhuqbani M, Saleh RA, Esendagli D, Aldakhil H, De Vol EB, Alkattan K, Marquez KAH, Saleh W, Sandoqa S, Al-Mutairy EA. Intravenous Immunoglobulins Alone for the Desensitization of Lung Transplant Recipients with Preformed Donor Specific Antibodies and Negative Flow Cytometry Crossmatch. Clin Transplant 2024; 38:e15374. [PMID: 38979724 DOI: 10.1111/ctr.15374] [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: 02/07/2024] [Revised: 04/08/2024] [Accepted: 05/24/2024] [Indexed: 07/10/2024]
Abstract
BACKGROUND The lack of evidence regarding optimal desensitization strategies for lung transplant candidates with preformed donor specific anti-human leukocyte antigen antibodies (DSAs) has led to varying approaches among centers towards this patient group. Our institution's desensitization protocol for recipients with preformed DSAs and negative flow cytometry crossmatch (FCXM) consists of intravenous immunoglobulin (IVIG) as the sole therapy. The study aimed to determine outcomes using this approach. METHODS This retrospective study included adults who underwent lung-only transplantation for the first time between January 2015 and March 2022 at a single center. We excluded patients with positive or missing FCXM results. Transplant recipients with any DSA ≥ 1000 MFI on latest testing within three months of transplant were considered DSA-positive, while recipients with DSAs <1000 MFI and those without DSAs were assigned to the low-level/negative group. Graft survival (time to death/retransplantation) and chronic lung allograft dysfunction (CLAD)-free times were compared between groups using Cox proportional hazards models. RESULTS Thirty-six out of 167 eligible patients (22%) were DSA-positive. At least 50% of preformed DSAs had documented clearance (decrease to <1000 MFI) within the first 6 months of transplant. Multivariable Cox regression analyses did not detect a significantly increased risk of graft failure (aHR 1.04 95%CI 0.55-1.97) or chronic lung allograft dysfunction (aHR 0.71 95%CI 0.34-1.52) in DSA-positive patients compared to patients with low-level/negative DSAs. Incidences of antibody-mediated rejection (p = 1.00) and serious thromboembolic events (p = 0.63) did not differ between study groups. CONCLUSION We describe a single-center experience of administering IVIG alone to lung transplant recipients with preformed DSAs and negative FCXM. Further studies are required to confirm the efficacy of this strategy against other protocols.
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Affiliation(s)
- Rayid Abdulqawi
- Lung Health Centre Department, Organ Transplant Centre of Excellence, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Moheeb Alawwami
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
- Kidney and Pancreas Health Centre Department, Organ Transplant Centre of Excellence, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Omar Aldosari
- College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Zyad Aldosari
- College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | | | - Rana A Saleh
- Lung Health Centre Department, Organ Transplant Centre of Excellence, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Dorina Esendagli
- Chest Diseases Department, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - Haifa Aldakhil
- Department of Biostatistics, Epidemiology and Scientific Computing, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Edward B De Vol
- Department of Biostatistics, Epidemiology and Scientific Computing, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Khaled Alkattan
- Lung Health Centre Department, Organ Transplant Centre of Excellence, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Kris Ann H Marquez
- Organ Transplant Centre of Excellence, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Waleed Saleh
- Lung Health Centre Department, Organ Transplant Centre of Excellence, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Sahar Sandoqa
- Kidney and Pancreas Health Centre Department, Organ Transplant Centre of Excellence, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Eid A Al-Mutairy
- Lung Health Centre Department, Organ Transplant Centre of Excellence, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
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23
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Glanville AR, Lehr CJ. Lung transplantation: practical and important directions of care. Curr Opin Pulm Med 2024; 30:375-376. [PMID: 38780495 DOI: 10.1097/mcp.0000000000001081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Affiliation(s)
- Allan R Glanville
- The Lung Transplant Unit, St. Vincent's Hospital, Sydney, New South Wales, Australia
| | - Carli J Lehr
- Cleveland Clinic Foundation, Cleveland, Ohio, USA
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24
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Verleden GM, Hendriks JMH, Verleden SE. The diagnosis and management of chronic lung allograft dysfunction. Curr Opin Pulm Med 2024; 30:377-381. [PMID: 38305383 DOI: 10.1097/mcp.0000000000001053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
PURPOSE OF REVIEW Chronic lung allograft dysfunction (CLAD) remains a life-threatening complication following lung transplantation. Different CLAD phenotypes have recently been defined, based on the combination of pulmonary function testing and chest computed tomography (CT) scanning and spurred renewed interests in differential diagnosis, risk factors and management of CLAD. RECENT FINDINGS Given their crucial importance in the differential diagnosis, we will discuss the latest development in assessing the pulmonary function and chest CT scan, but also their limitations in proper CLAD phenotyping, especially with regards to patients with baseline allograft dysfunction. Since no definitive treatment exists, it remains important to timely identify clinical risk factors, but also to assess the presence of specific patterns or biomarkers in tissue or in broncho alveolar lavage in relation to CLAD (phenotypes). We will provide a comprehensive overview of the latest advances in risk factors and biomarker research in CLAD. Lastly, we will also review novel preventive and curative treatment strategies for CLAD. SUMMARY Although this knowledge has significantly advanced the field of lung transplantation, more research is warranted because CLAD remains a life-threatening complication for all lung transplant recipients.
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Affiliation(s)
| | - Jeroen M H Hendriks
- Department of Thoracic and Vascular Surgery, University Hospital Antwerp, Edegem
- Department of ASTARC, University of Antwerp, Wilrijk, Belgium
| | - Stijn E Verleden
- Department of Pneumology
- Department of Thoracic and Vascular Surgery, University Hospital Antwerp, Edegem
- Department of ASTARC, University of Antwerp, Wilrijk, Belgium
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25
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Calabrese DR, Ekstrand CA, Yellamilli S, Singer JP, Hays SR, Leard LE, Shah RJ, Venado A, Kolaitis NA, Perez A, Combes A, Greenland JR. Macrophage and CD8 T cell discordance are associated with acute lung allograft dysfunction progression. J Heart Lung Transplant 2024; 43:1074-1086. [PMID: 38367738 PMCID: PMC11230518 DOI: 10.1016/j.healun.2024.02.007] [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: 12/07/2023] [Revised: 02/02/2024] [Accepted: 02/06/2024] [Indexed: 02/19/2024] Open
Abstract
BACKGROUND Acute lung allograft dysfunction (ALAD) is an imprecise syndrome denoting concern for the onset of chronic lung allograft dysfunction (CLAD). Mechanistic biomarkers are needed that stratify risk of ALAD progression to CLAD. We hypothesized that single cell investigation of bronchoalveolar lavage (BAL) cells at the time of ALAD would identify immune cells linked to progressive graft dysfunction. METHODS We prospectively collected BAL from consenting lung transplant recipients for single cell RNA sequencing. ALAD was defined by a ≥10% decrease in FEV1 not caused by infection or acute rejection and samples were matched to BAL from recipients with stable lung function. We examined cell compositional and transcriptional differences across control, ALAD with decline, and ALAD with recovery groups. We also assessed cell-cell communication. RESULTS BAL was assessed for 17 ALAD cases with subsequent decline (ALAD declined), 13 ALAD cases that resolved (ALAD recovered), and 15 cases with stable lung function. We observed broad differences in frequencies of the 26 unique cell populations across groups (p = 0.02). A CD8 T cell (p = 0.04) and a macrophage cluster (p = 0.01) best identified ALAD declined from the ALAD recovered and stable groups. This macrophage cluster was distinguished by an anti-inflammatory signature and the CD8 T cell cluster resembled a Tissue Resident Memory subset. Anti-inflammatory macrophages signaled to activated CD8 T cells via class I HLA, fibronectin, and galectin pathways (p < 0.05 for each). Recipients with discordance between these cells had a nearly 5-fold increased risk of severe graft dysfunction or death (HR 4.6, 95% CI 1.1-19.2, adjusted p = 0.03). We validated these key findings in 2 public lung transplant genomic datasets. CONCLUSIONS BAL anti-inflammatory macrophages may protect against CLAD by suppressing CD8 T cells. These populations merit functional and longitudinal assessment in additional cohorts.
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Affiliation(s)
- Daniel R Calabrese
- Department of Medicine, University of California, San Francisco, California; Medical Service, Veterans Affairs Health Care System, San Francisco, California.
| | | | - Shivaram Yellamilli
- Department of Pathology, University of California, San Francisco, California
| | - Jonathan P Singer
- Department of Medicine, University of California, San Francisco, California
| | - Steven R Hays
- Department of Medicine, University of California, San Francisco, California
| | - Lorriana E Leard
- Department of Medicine, University of California, San Francisco, California
| | - Rupal J Shah
- Department of Medicine, University of California, San Francisco, California
| | - Aida Venado
- Department of Medicine, University of California, San Francisco, California
| | | | - Alyssa Perez
- Department of Medicine, University of California, San Francisco, California
| | - Alexis Combes
- Department of Pathology, University of California, San Francisco, California
| | - John R Greenland
- Department of Medicine, University of California, San Francisco, California; Medical Service, Veterans Affairs Health Care System, San Francisco, California
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26
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Henry JP, Carlier F, Higny J, Benoit M, Xhaët O, Blommaert D, Telbis AM, Robaye B, Gabriel L, Guedes A, Michaux I, Demeure F, Luchian ML. Impact of Pre-Transplant Left Ventricular Diastolic Pressure on Primary Graft Dysfunction after Lung Transplantation: A Narrative Review. Diagnostics (Basel) 2024; 14:1340. [PMID: 39001230 PMCID: PMC11240543 DOI: 10.3390/diagnostics14131340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 06/17/2024] [Accepted: 06/21/2024] [Indexed: 07/16/2024] Open
Abstract
Lung transplantation (LT) constitutes the last therapeutic option for selected patients with end-stage respiratory disease. Primary graft dysfunction (PGD) is a form of severe lung injury, occurring in the first 72 h following LT and constitutes the most common cause of early death after LT. The presence of pulmonary hypertension (PH) has been reported to favor PGD development, with a negative impact on patients' outcomes while complicating medical management. Although several studies have suggested a potential association between pre-LT left ventricular diastolic dysfunction (LVDD) and PGD occurrence, the underlying mechanisms of such an association remain elusive. Importantly, the heterogeneity of the study protocols and the various inclusion criteria used to define the diastolic dysfunction in those patients prevents solid conclusions from being drawn. In this review, we aim at summarizing PGD mechanisms, risk factors, and diagnostic criteria, with a further focus on the interplay between LVDD and PGD development. Finally, we explore the predictive value of several diastolic dysfunction diagnostic parameters to predict PGD occurrence and severity.
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Affiliation(s)
- Jean Philippe Henry
- Department of Cardiology, Université Catholique de Louvain, CHU UCL Namur, 5530 Yvoir, Belgium; (J.H.); (M.B.); (O.X.); (D.B.); (A.-M.T.); (B.R.); (L.G.); (A.G.); (F.D.); (M.-L.L.)
| | - François Carlier
- Department of Pneumology, Université Catholique de Louvain, CHU UCL Namur, 5530 Yvoir, Belgium;
| | - Julien Higny
- Department of Cardiology, Université Catholique de Louvain, CHU UCL Namur, 5530 Yvoir, Belgium; (J.H.); (M.B.); (O.X.); (D.B.); (A.-M.T.); (B.R.); (L.G.); (A.G.); (F.D.); (M.-L.L.)
| | - Martin Benoit
- Department of Cardiology, Université Catholique de Louvain, CHU UCL Namur, 5530 Yvoir, Belgium; (J.H.); (M.B.); (O.X.); (D.B.); (A.-M.T.); (B.R.); (L.G.); (A.G.); (F.D.); (M.-L.L.)
| | - Olivier Xhaët
- Department of Cardiology, Université Catholique de Louvain, CHU UCL Namur, 5530 Yvoir, Belgium; (J.H.); (M.B.); (O.X.); (D.B.); (A.-M.T.); (B.R.); (L.G.); (A.G.); (F.D.); (M.-L.L.)
| | - Dominique Blommaert
- Department of Cardiology, Université Catholique de Louvain, CHU UCL Namur, 5530 Yvoir, Belgium; (J.H.); (M.B.); (O.X.); (D.B.); (A.-M.T.); (B.R.); (L.G.); (A.G.); (F.D.); (M.-L.L.)
| | - Alin-Mihail Telbis
- Department of Cardiology, Université Catholique de Louvain, CHU UCL Namur, 5530 Yvoir, Belgium; (J.H.); (M.B.); (O.X.); (D.B.); (A.-M.T.); (B.R.); (L.G.); (A.G.); (F.D.); (M.-L.L.)
| | - Benoit Robaye
- Department of Cardiology, Université Catholique de Louvain, CHU UCL Namur, 5530 Yvoir, Belgium; (J.H.); (M.B.); (O.X.); (D.B.); (A.-M.T.); (B.R.); (L.G.); (A.G.); (F.D.); (M.-L.L.)
| | - Laurence Gabriel
- Department of Cardiology, Université Catholique de Louvain, CHU UCL Namur, 5530 Yvoir, Belgium; (J.H.); (M.B.); (O.X.); (D.B.); (A.-M.T.); (B.R.); (L.G.); (A.G.); (F.D.); (M.-L.L.)
| | - Antoine Guedes
- Department of Cardiology, Université Catholique de Louvain, CHU UCL Namur, 5530 Yvoir, Belgium; (J.H.); (M.B.); (O.X.); (D.B.); (A.-M.T.); (B.R.); (L.G.); (A.G.); (F.D.); (M.-L.L.)
| | - Isabelle Michaux
- Department of Intensive Care, Université Catholique de Louvain, CHU UCL Namur, 5530 Yvoir, Belgium;
| | - Fabian Demeure
- Department of Cardiology, Université Catholique de Louvain, CHU UCL Namur, 5530 Yvoir, Belgium; (J.H.); (M.B.); (O.X.); (D.B.); (A.-M.T.); (B.R.); (L.G.); (A.G.); (F.D.); (M.-L.L.)
| | - Maria-Luiza Luchian
- Department of Cardiology, Université Catholique de Louvain, CHU UCL Namur, 5530 Yvoir, Belgium; (J.H.); (M.B.); (O.X.); (D.B.); (A.-M.T.); (B.R.); (L.G.); (A.G.); (F.D.); (M.-L.L.)
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Zhang S, Swarte JC, Gacesa R, Knobbe TJ, Kremer D, Jansen BH, de Borst MH, Harmsen HJM, Erasmus ME, Verschuuren EAM, Bakker SJL, Gan CT, Weersma RK, Björk JR. The gut microbiome in end-stage lung disease and lung transplantation. mSystems 2024; 9:e0131223. [PMID: 38712927 PMCID: PMC11237811 DOI: 10.1128/msystems.01312-23] [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: 12/05/2023] [Accepted: 04/03/2024] [Indexed: 05/08/2024] Open
Abstract
Gut dysbiosis has been associated with impaired outcomes in liver and kidney transplant recipients, but the gut microbiome of lung transplant recipients has not been extensively explored. We assessed the gut microbiome in 64 fecal samples from end-stage lung disease patients before transplantation and 219 samples from lung transplant recipients after transplantation using metagenomic sequencing. To identify dysbiotic microbial signatures, we analyzed 243 fecal samples from age-, sex-, and BMI-matched healthy controls. By unsupervised clustering, we identified five groups of lung transplant recipients using different combinations of immunosuppressants and antibiotics and analyzed them in relation to the gut microbiome. Finally, we investigated the gut microbiome of lung transplant recipients in different chronic lung allograft dysfunction (CLAD) stages and longitudinal gut microbiome changes after transplantation. We found 108 species (58.1%) in end-stage lung disease patients and 139 species (74.7%) in lung transplant recipients that were differentially abundant compared with healthy controls, with several species exhibiting sharp longitudinal increases from before to after transplantation. Different combinations of immunosuppressants and antibiotics were associated with specific gut microbial signatures. We found that the gut microbiome of lung transplant recipients in CLAD stage 0 was more similar to healthy controls compared to those in CLAD stage 1. Finally, the gut microbial diversity of lung transplant recipients remained lower than the average gut microbial diversity of healthy controls up to more than 20 years post-transplantation. Gut dysbiosis, already present before lung transplantation was exacerbated following lung transplantation.IMPORTANCEThis study provides extensive insights into the gut microbiome of end-stage lung disease patients and lung transplant recipients, which warrants further investigation before the gut microbiome can be used for microbiome-targeted interventions that could improve the outcome of lung transplantation.
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Affiliation(s)
- Shuyan Zhang
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - J. Casper Swarte
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Ranko Gacesa
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Tim J. Knobbe
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Daan Kremer
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Bernadien H. Jansen
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Martin H. de Borst
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - TransplantLines InvestigatorsAnnemaCobyBakkerStephan J. L.BergerStefan P.BlokzijlHansBodewesFrank A. J. A.de BoerMarieke T.DammanKevinde BorstMartin H.DiepstraArjanDijkstraGerardDouwesRianne M.DoorenbosCaecilia S. E.EisengaMichele F.ErasmusMichiel E.GanC. TjiHakEelkoHepkemaBouke G.KlontFrankKnobbeTim J.KremerDaanLeuveninkHenri G. D.LexmondWillem S.de MeijerVincent E.NiestersHubert G. M.Nieuwenhuis-MoekeGertrude J.van PeltL. JoostPolRobert A.PorteRobert J.RanchorAdelta V.SiebelinkMarion J.SlartRiemer J. H. J. A.SwarteJ. CasperTouwDaan J.van den HeuvelMarius C.van Leer-ButerCorettavan LondenMarcoVerschuurenErik A. M.VosMichel J.WeersmaRinse K.Gomes NetoAntonio W.SandersJan Stephan F.
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
- Department of Medical Microbiology and Infection prevention, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
- Department of Cardiothoracic Surgery, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
- Department of Medical Pulmonary Diseases, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Hermie J. M. Harmsen
- Department of Medical Microbiology and Infection prevention, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Michiel E. Erasmus
- Department of Cardiothoracic Surgery, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Erik A. M. Verschuuren
- Department of Medical Pulmonary Diseases, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Stephan J. L. Bakker
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - C. Tji Gan
- Department of Medical Pulmonary Diseases, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Rinse K. Weersma
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Johannes R. Björk
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
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Beber SA, Moshkelgosha S, White M, Zehong G, Cheung M, Hedley D, Levy L, Samuels J, Renaud-Picard B, Hwang D, Martinu T, Juvet S. The CD8 + T cell content of transbronchial biopsies from patients with a first episode of clinically stable grade A1 cellular rejection is associated with future chronic lung allograft dysfunction. J Heart Lung Transplant 2024:S1053-2498(24)01694-2. [PMID: 38852935 DOI: 10.1016/j.healun.2024.06.001] [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: 01/16/2024] [Revised: 04/05/2024] [Accepted: 06/03/2024] [Indexed: 06/11/2024] Open
Abstract
BACKGROUND T cells drive acute cellular rejection (ACR) and its progression to chronic lung allograft dysfunction (CLAD) following lung transplantation. International Society for Heart and Lung Transplantation grade A1 ACR without associated allograft dysfunction is often untreated, yet some patients develop progressive graft dysfunction. T-cell composition of A1 ACR lesions may have prognostic value; therefore, protein-level and epigenetic techniques were applied to transbronchial biopsy tissue to determine whether differential T-cell infiltration in recipients experiencing a first episode of stable grade A1 ACR (StA1R) is associated with early CLAD. METHODS Sixty-two patients experiencing a first episode of StA1R were divided into those experiencing CLAD within 2 years (n = 13) and those remaining CLAD-free for 5 or more years (n = 49). Imaging mass cytometry (IMC) was used to profile the spectrum and distribution of intragraft T cell phenotypes on a subcohort (n = 16; 8 early-CLAD and 8 no early-CLAD). Immunofluorescence was used to quantify CD4+, CD8+, and FOXP3+ cells. Separately, CD3+ cells were fluorescently labeled, micro-dissected, and the degree of Treg-specific demethylated region methylation was determined. RESULTS PhenoGraph unsupervised clustering on IMC revealed 50 unique immune cell subpopulations. Methylation and immunofluorescence analyses demonstrated no significant differences in Tregs between early-CLAD and no early-CLAD groups. Immunofluorescence revealed that patients who developed CLAD within 2 years of lung transplantation showed greater CD8+ T cell infiltration compared to those who remained CLAD-free for 5 or more years. CONCLUSIONS In asymptomatic patients with a first episode of A1 rejection, greater CD8+ T cell content may be indicative of worse long-term outlook.
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Affiliation(s)
- Samuel A Beber
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada; Department of Medicine, New York Medical College, Valhalla, New York
| | - Sajad Moshkelgosha
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Matthew White
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Guan Zehong
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - May Cheung
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - David Hedley
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Liran Levy
- Department of Medicine, Sheba Medical Center, Tel-Aviv University, Tel Aviv, Israel
| | - Joel Samuels
- Department of Medicine, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | | | - David Hwang
- Department of Pathology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Tereza Martinu
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada; Ajmera Transplant Center, Toronto Lung Transplant Program, Toronto, Ontario, Canada; Division of Respirology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Stephen Juvet
- Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada; Ajmera Transplant Center, Toronto Lung Transplant Program, Toronto, Ontario, Canada; Division of Respirology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada.
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29
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Ramendra R, Duong A, Zhang CYK, Huszti E, Zhou X, Havlin J, Ghany R, Cypel M, Yeung JC, Keshavjee S, Sage AT, Martinu T. Airway pepsinogen A4 identifies lung transplant recipients with microaspiration and predicts chronic lung allograft dysfunction. J Heart Lung Transplant 2024; 43:973-982. [PMID: 38211836 DOI: 10.1016/j.healun.2024.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 12/04/2023] [Accepted: 01/02/2024] [Indexed: 01/13/2024] Open
Abstract
BACKGROUND Aspiration is a known risk factor for adverse outcomes post-lung transplantation. Airway bile acids are the gold-standard biomarker of aspiration; however, they are released into the duodenum and likely reflect concurrent gastrointestinal dysmotility. Previous studies investigating total airway pepsin have found conflicting results on its relationship with adverse outcomes post-lung transplantation. These studies measured total pepsin and pepsinogen in the airways. Certain pepsinogens are constitutively expressed in the lungs, while others, such as pepsinogen A4 (PGA4), are not. We sought to evaluate the utility of measuring airway PGA4 as a biomarker of aspiration and predictor of adverse outcomes in lung transplant recipients (LTRs) early post-transplant. METHODS Expression of PGA4 was compared to other pepsinogens in lung tissue. Total pepsin and PGA4 were measured in large airway bronchial washings and compared to preexisting markers of aspiration. Two independent cohorts of LTRs were used to assess the relationship between airway PGA4 and chronic lung allograft dysfunction (CLAD). Changes to airway PGA4 after antireflux surgery were assessed in a third cohort of LTRs. RESULTS PGA4 was expressed in healthy human stomach but not lung. Airway PGA4, but not total pepsin, was associated with aspiration. Airway PGA4 was associated with an increased risk of CLAD in two independent cohorts of LTRs. Antireflux surgery was associated with reduced airway PGA4. CONCLUSIONS Airway PGA4 is a marker of aspiration that predicts CLAD in LTRs. Measuring PGA4 at surveillance bronchoscopies can help triage high-risk LTRs for anti-reflux surgery.
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Affiliation(s)
- Rayoun Ramendra
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Allen Duong
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Chen Yang Kevin Zhang
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Ella Huszti
- Biostatistics Research Unit, University Health Network, Toronto, Ontario, Canada
| | - Xuanzi Zhou
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Jan Havlin
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Rasheed Ghany
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Marcelo Cypel
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada; Division of Thoracic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Jonathan C Yeung
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada; Division of Thoracic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Shaf Keshavjee
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada; Division of Thoracic Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Andrew T Sage
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Tereza Martinu
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada; Division of Respirology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada.
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Gautschi F, Vogelmann T, Ortmanns G, Knörr F, Steinack C, Hage R, Nägeli M, Schuurmans MM. Early extracorporeal photopheresis treatment is associated with better survival in patients with chronic or recurrent acute lung allograft dysfunction. J Clin Apher 2024; 39:e22128. [PMID: 38829041 DOI: 10.1002/jca.22128] [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: 10/20/2023] [Revised: 03/29/2024] [Accepted: 04/30/2024] [Indexed: 06/05/2024]
Abstract
BACKGROUND Due to development of chronic lung allograft dysfunction (CLAD), prognosis for patients undergoing lung transplantation (LTx) is still worse compared to other solid organ transplant recipients. Treatment options for slowing down CLAD progression are scarce with extracorporeal photopheresis (ECP) as an established rescue therapy. The aim of the study was to identify characteristics of responders and non-responders to ECP treatment, assess their survival, lung function development and by that define the subset of patients who should receive early ECP treatment. METHODS We performed a retrospective study of all LTx patients receiving ECP treatment at the University Hospital Zurich between January 2010 and March 2020. Patients were followed-up for a maximum period of 5 years. Mortality and lung function development were assessed by CLAD stage and by CLAD subtype before initiation of ECP treatment. RESULTS Overall, 105 patients received at least one ECP following LTx. A total of 57 patients (61.3%) died within the study period with a median survival of 15 months. Mortality was 57% for patients who started ECP at CLAD1, 39% for CLAD2, 93% for CLAD3, and 90% for CLAD4 (p < 0.001). Survival and lung function development was best in young patients at early CLAD stages 1 and 2. Response to ECP treatment was worst in patients with CLAD-RAS/mixed subtype (14.3%) and patients with ECP initiation in CLAD stages 3 (7.1%) and 4 (11.1%). Survival was significantly better in a subset of patients with recurrent acute allograft dysfunction and earlier start of ECP treatment (105 vs 15 months). CONCLUSION In this retrospective analysis of a large group of CLAD patients treated with ECP after LTx, early initiation of ECP was associated with better long-term survival. Besides a subset of patients suffering of recurrent allograft dysfunction, especially a subset of patients defined as responders showed an improved response rate and survival, suggesting that ECP should be initiated in early CLAD stages and young patients. ECP might therefore prevent long-term disease progression even in patients with CLAD refractory to other treatment options and thus prevent or delay re-transplantation.
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Affiliation(s)
- Fiorenza Gautschi
- Department of Pulmonology, University Hospital Zurich, Zurich, Switzerland
- Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | | | - Gernot Ortmanns
- Department of Pulmonology, University Hospital Zurich, Zurich, Switzerland
- Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - Fabian Knörr
- Department of Pulmonology, University Hospital Zurich, Zurich, Switzerland
- Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - Carolin Steinack
- Department of Pulmonology, University Hospital Zurich, Zurich, Switzerland
- Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - René Hage
- Department of Pulmonology, University Hospital Zurich, Zurich, Switzerland
- Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - Mirjam Nägeli
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Macé Matthew Schuurmans
- Department of Pulmonology, University Hospital Zurich, Zurich, Switzerland
- Faculty of Medicine, University of Zurich, Zurich, Switzerland
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31
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Kawashima M, Ma J, Huszti E, Levy L, Berra G, Renaud-Picard B, Takahagi A, Ghany R, Sato M, Keshavjee S, Singer L, Husain S, Kumar D, Tikkanen J, Martinu T. Association between cytomegalovirus viremia and long-term outcomes in lung transplant recipients. Am J Transplant 2024; 24:1057-1069. [PMID: 38307417 DOI: 10.1016/j.ajt.2024.01.027] [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: 06/04/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/04/2024]
Abstract
Although cytomegalovirus (CMV) viremia/DNAemia has been associated with reduced survival after lung transplantation, its association with chronic lung allograft dysfunction (CLAD) and its phenotypes is unclear. We hypothesized that, in a modern era of CMV prophylaxis, CMV DNAemia would still remain associated with death, but also represent a risk factor for CLAD and specifically restrictive allograft syndrome (RAS)/mixed phenotype. This was a single-center retrospective cohort study of all consecutive adult, first, bilateral-/single-lung transplants done between 2010-2016, consisting of 668 patients. Risks for death/retransplantation, CLAD, or RAS/mixed, were assessed by adjusted cause-specific Cox proportional-hazards models. CMV viral load (VL) was primarily modeled as a categorical variable: undetectable, detectable to 999, 1000 to 9999, and ≥10 000 IU/mL. In multivariable models, CMV VL was significantly associated with death/retransplantation (≥10 000 IU/mL: HR = 2.65 [1.78-3.94]; P < .01), but was not associated with CLAD, whereas CMV serostatus mismatch was (D+R-: HR = 2.04 [1.30-3.21]; P < .01). CMV VL was not associated with RAS/mixed in univariable analysis. Secondary analyses with a 7-level categorical or 4-level ordinal CMV VL confirmed similar results. In conclusion, CMV DNAemia is a significant risk factor for death/retransplantation, but not for CLAD or RAS/mixed. CMV serostatus mismatch may have an impact on CLAD through a pathway independent of DNAemia.
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Affiliation(s)
- Mitsuaki Kawashima
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Jin Ma
- Biostatistics Research Unit, University Health Network, Toronto, Ontario, Canada
| | - Ella Huszti
- Biostatistics Research Unit, University Health Network, Toronto, Ontario, Canada
| | - Liran Levy
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Gregory Berra
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Benjamin Renaud-Picard
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Akihiro Takahagi
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Rasheed Ghany
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Masaaki Sato
- Department of Thoracic Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shaf Keshavjee
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Lianne Singer
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada; Division of Respirology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Shahid Husain
- Transplant Infectious Diseases & Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Deepali Kumar
- Transplant Infectious Diseases & Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Jussi Tikkanen
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada; Division of Respirology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Tereza Martinu
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada; Division of Respirology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada.
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Paraskeva MA, Snell GI. Advances in lung transplantation: 60 years on. Respirology 2024; 29:458-470. [PMID: 38648859 DOI: 10.1111/resp.14721] [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: 02/11/2024] [Accepted: 04/03/2024] [Indexed: 04/25/2024]
Abstract
Lung transplantation is a well-established treatment for advanced lung disease, improving survival and quality of life. Over the last 60 years all aspects of lung transplantation have evolved significantly and exponential growth in transplant volume. This has been particularly evident over the last decade with a substantial increase in lung transplant numbers as a result of innovations in donor utilization procurement, including the use donation after circulatory death and ex-vivo lung perfusion organs. Donor lungs have proved to be surprisingly robust, and therefore the donor pool is actually larger than previously thought. Parallel to this, lung transplant outcomes have continued to improve with improved acute management as well as microbiological and immunological insights and innovations. The management of lung transplant recipients continues to be complex and heavily dependent on a tertiary care multidisciplinary paradigm. Whilst long term outcomes continue to be limited by chronic lung allograft dysfunction improvements in diagnostics, mechanistic understanding and evolutions in treatment paradigms have all contributed to a median survival that in some centres approaches 10 years. As ongoing studies build on developing novel approaches to diagnosis and treatment of transplant complications and improvements in donor utilization more individuals will have the opportunity to benefit from lung transplantation. As has always been the case, early referral for transplant consideration is important to achieve best results.
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Affiliation(s)
- Miranda A Paraskeva
- Lung Transplant Service, Department of Respiratory Medicine, Alfred Hospital and Monash University, Melbourne, Victoria, Australia
| | - Gregory I Snell
- Lung Transplant Service, Department of Respiratory Medicine, Alfred Hospital and Monash University, Melbourne, Victoria, Australia
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Kim SJ, Short RG, Beal MA, Byers DE, Javidan C, Raptis D. Imaging of Lung Transplantation. Clin Chest Med 2024; 45:445-460. [PMID: 38816099 DOI: 10.1016/j.ccm.2024.02.014] [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] [Indexed: 06/01/2024]
Abstract
Lung transplantation is the only curative treatment for end-stage lung disease, which is caused by a wide variety of pathologies and encountered in a diverse range of patients. Potential recipients, as well as donors are carefully evaluated by imaging prior to transplant for contraindications to the transplant. After transplantation, recipients are imaged in the immediate, early, intermediate, and late periods for complications that may arise and require intervention. Radiography and computed tomography are the 2 most commonly used imaging modalities used to evaluate the chest after lung transplantation.
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Affiliation(s)
- Stacy J Kim
- Department of Radiology, Mallinckrodt Institute of Radiology, Washington University in St. Louis, Campus Box 8131, 510 S. Kingshighway Boulevard, St Louis, MO 63110, USA.
| | - Ryan G Short
- Department of Radiology, Mallinckrodt Institute of Radiology, Washington University in St. Louis, Campus Box 8131, 510 S. Kingshighway Boulevard, St Louis, MO 63110, USA
| | - Michael A Beal
- Department of Radiology, Mallinckrodt Institute of Radiology, Washington University in St. Louis, Campus Box 8131, 510 S. Kingshighway Boulevard, St Louis, MO 63110, USA
| | - Derek E Byers
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, 660 South Euclid Avenue, St Louis, MO 63110, USA
| | - Cylen Javidan
- Department of Radiology, Mallinckrodt Institute of Radiology, Washington University in St. Louis, Campus Box 8131, 510 S. Kingshighway Boulevard, St Louis, MO 63110, USA
| | - Demetrios Raptis
- Department of Radiology, Mallinckrodt Institute of Radiology, Washington University in St. Louis, Campus Box 8131, 510 S. Kingshighway Boulevard, St Louis, MO 63110, USA
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Mineura K, Tanaka S, Goda Y, Terada Y, Yoshizawa A, Umemura K, Sato A, Yamada Y, Yutaka Y, Ohsumi A, Nakajima D, Hamaji M, Mennju T, Kreisel D, Date H. Fibrotic progression from acute cellular rejection is dependent on secondary lymphoid organs in a mouse model of chronic lung allograft dysfunction. Am J Transplant 2024; 24:944-953. [PMID: 38403187 PMCID: PMC11144565 DOI: 10.1016/j.ajt.2024.02.020] [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: 06/16/2023] [Revised: 02/16/2024] [Accepted: 02/16/2024] [Indexed: 02/27/2024]
Abstract
Chronic lung allograft dysfunction (CLAD) remains one of the major limitations to long-term survival after lung transplantation. We modified a murine model of CLAD and transplanted left lungs from BALB/c donors into B6 recipients that were treated with intermittent cyclosporine and methylprednisolone postoperatively. In this model, the lung allograft developed acute cellular rejection on day 15 which, by day 30 after transplantation, progressed to severe pleural and peribronchovascular fibrosis, reminiscent of changes observed in restrictive allograft syndrome. Lung transplantation into splenectomized B6 alymphoplastic (aly/aly) or splenectomized B6 lymphotoxin-β receptor-deficient mice demonstrated that recipient secondary lymphoid organs, such as spleen and lymph nodes, are necessary for progression from acute cellular rejection to allograft fibrosis in this model. Our work uncovered a critical role for recipient secondary lymphoid organs in the development of CLAD after pulmonary transplantation and may provide mechanistic insights into the pathogenesis of this complication.
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Affiliation(s)
- Katsutaka Mineura
- Department of Thoracic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan; Department of Surgery, Washington University School of Medicine, Saint Louis, Missouri, USA
| | - Satona Tanaka
- Department of Thoracic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan.
| | - Yasufumi Goda
- Department of Thoracic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuriko Terada
- Department of Surgery, Washington University School of Medicine, Saint Louis, Missouri, USA
| | - Akihiko Yoshizawa
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Keisuke Umemura
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - Atsuyasu Sato
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yoshito Yamada
- Department of Thoracic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yojiro Yutaka
- Department of Thoracic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Akihiro Ohsumi
- Department of Thoracic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Daisuke Nakajima
- Department of Thoracic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masatsugu Hamaji
- Department of Thoracic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Toshi Mennju
- Department of Thoracic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Daniel Kreisel
- Department of Surgery, Washington University School of Medicine, Saint Louis, Missouri, USA; Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, Missouri, USA
| | - Hiroshi Date
- Department of Thoracic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
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35
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Combs MP, Luth JE, Falkowski NR, Wheeler DS, Walker NM, Erb-Downward JR, Wakeam E, Sjoding MW, Dunlap DG, Admon AJ, Dickson RP, Lama VN. The Lung Microbiome Predicts Mortality and Response to Azithromycin in Lung Transplant Recipients with Chronic Rejection. Am J Respir Crit Care Med 2024; 209:1360-1375. [PMID: 38271553 PMCID: PMC11146567 DOI: 10.1164/rccm.202308-1326oc] [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: 08/29/2023] [Accepted: 01/24/2024] [Indexed: 01/27/2024] Open
Abstract
Rationale: Chronic lung allograft dysfunction (CLAD) is the leading cause of death after lung transplant, and azithromycin has variable efficacy in CLAD. The lung microbiome is a risk factor for developing CLAD, but the relationship between lung dysbiosis, pulmonary inflammation, and allograft dysfunction remains poorly understood. Whether lung microbiota predict outcomes or modify treatment response after CLAD is unknown. Objectives: To determine whether lung microbiota predict post-CLAD outcomes and clinical response to azithromycin. Methods: Retrospective cohort study using acellular BAL fluid prospectively collected from recipients of lung transplant within 90 days of CLAD onset. Lung microbiota were characterized using 16S rRNA gene sequencing and droplet digital PCR. In two additional cohorts, causal relationships of dysbiosis and inflammation were evaluated by comparing lung microbiota with CLAD-associated cytokines and measuring ex vivo P. aeruginosa growth in sterilized BAL fluid. Measurements and Main Results: Patients with higher bacterial burden had shorter post-CLAD survival, independent of CLAD phenotype, azithromycin treatment, and relevant covariates. Azithromycin treatment improved survival in patients with high bacterial burden but had negligible impact on patients with low or moderate burden. Lung bacterial burden was positively associated with CLAD-associated cytokines, and ex vivo growth of P. aeruginosa was augmented in BAL fluid from transplant recipients with CLAD. Conclusions: In recipients of lung transplants with chronic rejection, increased lung bacterial burden is an independent risk factor for mortality and predicts clinical response to azithromycin. Lung bacterial dysbiosis is associated with alveolar inflammation and may be promoted by underlying lung allograft dysfunction.
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Affiliation(s)
| | | | | | | | | | | | - Elliot Wakeam
- Division of Thoracic Surgery, Toronto General Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Michael W. Sjoding
- Division of Pulmonary and Critical Care and
- Weil Institute for Critical Care Research and Innovation, Ann Arbor, Michigan
| | - Daniel G. Dunlap
- Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Andrew J. Admon
- Division of Pulmonary and Critical Care and
- Weil Institute for Critical Care Research and Innovation, Ann Arbor, Michigan
| | - Robert P. Dickson
- Division of Pulmonary and Critical Care and
- Weil Institute for Critical Care Research and Innovation, Ann Arbor, Michigan
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan; and
| | - Vibha N. Lama
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Emory University, Atlanta, Georgia
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36
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Hinds DM, Nevel RJ, Liptzin DR, Barber AT. Pediatric Pulmonology 2023 year in review: Rare and diffuse lung disease. Pediatr Pulmonol 2024. [PMID: 38818884 DOI: 10.1002/ppul.27108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 05/24/2024] [Accepted: 05/26/2024] [Indexed: 06/01/2024]
Abstract
The field of pediatric rare and diffuse lung disease continues its maturation as research advances the understanding of diagnosis and treatment of children's interstitial lung disease, noncystic fibrosis bronchiectasis, and primary ciliary dyskinesia. The rarity and breadth of these conditions make them challenging to study, yet we continue to make progress in our understanding of pathophysiology, genotype/phenotype relationships, and treatment. Papers published on these topics in Pediatric Pulmonology and other journals in 2023 describe the power of multicenter cooperation and patient registries, enhance our understanding of pathophysiology and genotype/phenotype relationships, and report progress in treatments. In this review, we hope to increase awareness and knowledge of these conditions and to inspire future research.
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Affiliation(s)
- Daniel M Hinds
- Department of Pediatrics, University of Iowa School of Medicine, Iowa City, Iowa, USA
| | - Rebekah J Nevel
- Department of Child Health, Pediatric Pulmonary Medicine, University of Missouri Children's Hospital, Columbia, Missouri, USA
| | - Deborah R Liptzin
- Department of Pediatrics, Division of Pediatric Pulmonary and Sleep Medicine, School of Medicine, University of Washington, Seattle, Washington, USA
| | - Andrew T Barber
- Department of Pediatrics, Virginia Commonwealth University, Richmond, Virginia, USA
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37
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Bes-Berlandier H, Coiffard B, Bermudez J, Demazes-Dufeu N, Coltey B, Boschi C, Colson P, Hraiech S, Reynaud-Gaubert M, Cassir N. Management of immunosuppression in lung transplant recipients and COVID-19 outcomes: an observational retrospective cohort-study. BMC Infect Dis 2024; 24:536. [PMID: 38807049 PMCID: PMC11134755 DOI: 10.1186/s12879-024-09269-1] [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: 01/28/2024] [Accepted: 03/28/2024] [Indexed: 05/30/2024] Open
Abstract
BACKGROUND The aim of this study was to assess the impact of immunosuppression management on coronavirus disease 2019 (COVID-19) outcomes. METHODS We performed a single-center retrospective study in a cohort of 358 lung transplant recipients (LTx) over the period from March 2020 to April 2022. All included symptomatic patients had at least one positive SARS-CoV-2 rt-PCR. We used a composite primary outcome for COVID-19 including increased need for oxygen since the hospital admission, ICU transfer, and in-hospital mortality. We assessed by univariate and multivariate analyses the risk factors for poor outcomes. RESULTS Overall, we included 91 LTx who contracted COVID-19. The COVID-19 in-hospital mortality rate reached 4.4%. By hierarchical clustering, we found a strong and independent association between the composite poor outcome and the discontinuation of at least one immunosuppressive molecule among tacrolimus, cyclosporine, mycophenolate mofetil, and everolimus. Obesity (OR = 16, 95%CI (1.96; 167), p = 0.01) and chronic renal failure (OR = 4.6, 95%CI (1.4; 18), p = 0.01) were also independently associated with the composite poor outcome. Conversely, full vaccination was protective (OR = 0.23, 95%CI (0.046; 0.89), p = 0.047). CONCLUSION The administration of immunosuppressive drugs such as tacrolimus, cyclocporine or everolimus can have a protective effect in LTx with COVID-19, probably related to their intrinsic antiviral capacity.
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Affiliation(s)
- Hugo Bes-Berlandier
- Department of Infectious Diseases, University Hospital Institute -Méditerranée Infection (IHU), Marseille, France
| | - Benjamin Coiffard
- Department of Respiratory Medicine and Lung Transplantation, Aix Marseille Univ, APHM, Hôpital Nord, Marseille, France
| | - Julien Bermudez
- Department of Respiratory Medicine and Lung Transplantation, Aix Marseille Univ, APHM, Hôpital Nord, Marseille, France
| | - Nadine Demazes-Dufeu
- Department of Respiratory Medicine and Lung Transplantation, Aix Marseille Univ, APHM, Hôpital Nord, Marseille, France
| | - Bérengère Coltey
- Department of Respiratory Medicine and Lung Transplantation, Aix Marseille Univ, APHM, Hôpital Nord, Marseille, France
| | - Céline Boschi
- Department of Infectious Diseases, University Hospital Institute -Méditerranée Infection (IHU), Marseille, France
- Microbes, Evolution, Phylogeny and Infection (MEΦI), Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, Institut de Recherche Pour le Développement IRD, Assistance Publique, Institut Hospitalo-Universitaire (IHU), Méditerranée Infection, 19-21 Boulevard Jean Moulin, Marseille, Cedex 05 13385, France
| | - Philippe Colson
- Department of Infectious Diseases, University Hospital Institute -Méditerranée Infection (IHU), Marseille, France
- Microbes, Evolution, Phylogeny and Infection (MEΦI), Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, Institut de Recherche Pour le Développement IRD, Assistance Publique, Institut Hospitalo-Universitaire (IHU), Méditerranée Infection, 19-21 Boulevard Jean Moulin, Marseille, Cedex 05 13385, France
| | - Sami Hraiech
- Service de Médecine Intensive - Réanimation, AP-HM, Hôpital Nord, Marseille, France
- Faculté de médecine, Centre d'Etudes et de Recherches sur les Services de Santé et qualité de vie EA 3279, Aix-Marseille Université, Marseille, 13005, France
| | - Martine Reynaud-Gaubert
- Department of Respiratory Medicine and Lung Transplantation, Aix Marseille Univ, APHM, Hôpital Nord, Marseille, France
- Microbes, Evolution, Phylogeny and Infection (MEΦI), Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, Institut de Recherche Pour le Développement IRD, Assistance Publique, Institut Hospitalo-Universitaire (IHU), Méditerranée Infection, 19-21 Boulevard Jean Moulin, Marseille, Cedex 05 13385, France
| | - Nadim Cassir
- Department of Infectious Diseases, University Hospital Institute -Méditerranée Infection (IHU), Marseille, France.
- Microbes, Evolution, Phylogeny and Infection (MEΦI), Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, Institut de Recherche Pour le Développement IRD, Assistance Publique, Institut Hospitalo-Universitaire (IHU), Méditerranée Infection, 19-21 Boulevard Jean Moulin, Marseille, Cedex 05 13385, France.
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38
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Augusto JF, Benden C, Diekmann F, Zuckermann A. The value of extracorporeal photopheresis as an immunosuppression-modifying approach in solid organ transplantation: a potential solution to an unmet medical need. Front Immunol 2024; 15:1371554. [PMID: 38846942 PMCID: PMC11154098 DOI: 10.3389/fimmu.2024.1371554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 05/07/2024] [Indexed: 06/09/2024] Open
Abstract
Allograft rejection is a critical issue following solid organ transplantation (SOT). Immunosuppressive therapies are crucial in reducing risk of rejection yet are accompanied by several significant side effects, including infection, malignancy, cardiovascular diseases, and nephrotoxicity. There is a current unmet medical need with a lack of effective minimization strategies for these side effects. Extracorporeal photopheresis (ECP) has shown potential as an immunosuppression (IS)-modifying technique in several SOT types, with improvements seen in acute and recurrent rejection, allograft survival, and associated side effects, and could fulfil this unmet need. Through a review of the available literature detailing key areas in which ECP may benefit patients, this review highlights the IS-modifying potential of ECP in the four most common SOT procedures (heart, lung, kidney, and liver transplantation) and highlights existing gaps in data. Current evidence supports the use of ECP for IS modification following SOT, however there is a need for further high-quality research, in particular randomized control trials, in this area.
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Affiliation(s)
- Jean-François Augusto
- Department of Nephrology-Dialysis-Transplantation, University Hospital of Angers, Angers, France
| | | | - Fritz Diekmann
- Renal Transplantation Unit, Department of Nephrology and Kidney Transplantation, Hospital Clinic, Barcelona, Spain
| | - Andreas Zuckermann
- Department of Cardiac Surgery, Medical University of Vienna, Vienna, Austria
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39
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Nykänen AI, Mariscal A, Duong A, Ali A, Takahagi A, Bai X, Zehong G, Joe B, Takahashi M, Chen M, Gokhale H, Shan H, Hwang DM, Estrada C, Yeung J, Waddell T, Martinu T, Juvet S, Cypel M, Liu M, Davies JE, Keshavjee S. Lung Transplant Immunomodulation with Genetically Engineered Mesenchymal Stromal Cells-Therapeutic Window for Interleukin-10. Cells 2024; 13:859. [PMID: 38786082 PMCID: PMC11119666 DOI: 10.3390/cells13100859] [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: 04/20/2024] [Revised: 05/05/2024] [Accepted: 05/09/2024] [Indexed: 05/25/2024] Open
Abstract
Lung transplantation results are compromised by ischemia-reperfusion injury and alloimmune responses. Ex vivo lung perfusion (EVLP) is used to assess marginal donor lungs before transplantation but is also an excellent platform to apply novel therapeutics. We investigated donor lung immunomodulation using genetically engineered mesenchymal stromal cells with augmented production of human anti-inflammatory hIL-10 (MSCsIL-10). Pig lungs were placed on EVLP for 6 h and randomized to control (n = 7), intravascular delivery of 20 × 106 (n = 5, low dose) or 40 × 106 human MSCs IL-10 (n = 6, high dose). Subsequently, single-lung transplantation was performed, and recipient pigs were monitored for 3 days. hIL-10 secretion was measured during EVLP and after transplantation, and immunological effects were assessed by cytokine profile, T and myeloid cell characterization and mixed lymphocyte reaction. MSCIL-10 therapy rapidly increased hIL-10 during EVLP and resulted in transient hIL-10 elevation after lung transplantation. MSCIL-10 delivery did not affect lung function but was associated with dose-related immunomodulatory effects, with the low dose resulting in a beneficial decrease in apoptosis and lower macrophage activation, but the high MSCIL-10 dose resulting in inflammation and cytotoxic CD8+ T cell activation. MSCIL-10 therapy during EVLP results in a rapid and transient perioperative hIL-10 increase and has a therapeutic window for its immunomodulatory effects.
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Affiliation(s)
- Antti I. Nykänen
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Andrea Mariscal
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Thoracic Surgery, Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5T 1P5, Canada
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, ON M5G 2N2, Canada
| | - Allen Duong
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Aadil Ali
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Akihiro Takahagi
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
| | - Xiaohui Bai
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
| | - Guan Zehong
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
| | - Betty Joe
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
| | - Mamoru Takahashi
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
| | - Manyin Chen
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, ON M5G 2N2, Canada
| | - Hemant Gokhale
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, ON M5G 2N2, Canada
| | - Hongchao Shan
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, ON M5G 2N2, Canada
| | - David M. Hwang
- Laboratory Medicine and Molecular Diagnostics, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON M4N 3M5, Canada;
| | - Catalina Estrada
- Tissue Regeneration Therapeutics, Toronto, ON M5G 1N8, Canada; (C.E.); (J.E.D.)
| | - Jonathan Yeung
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Thoracic Surgery, Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5T 1P5, Canada
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, ON M5G 2N2, Canada
| | - Tom Waddell
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Thoracic Surgery, Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5T 1P5, Canada
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, ON M5G 2N2, Canada
| | - Tereza Martinu
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Thoracic Surgery, Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5T 1P5, Canada
- Division of Respirology, Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Stephen Juvet
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Thoracic Surgery, Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5T 1P5, Canada
- Division of Respirology, Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Marcelo Cypel
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Thoracic Surgery, Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5T 1P5, Canada
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, ON M5G 2N2, Canada
| | - Mingyao Liu
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - John E. Davies
- Tissue Regeneration Therapeutics, Toronto, ON M5G 1N8, Canada; (C.E.); (J.E.D.)
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada
| | - Shaf Keshavjee
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada; (A.I.N.); (A.M.); (A.D.); (A.A.); (A.T.); (X.B.); (G.Z.); (B.J.); (M.T.); (M.C.); (H.G.); (H.S.); (J.Y.); (T.W.); (T.M.); (S.J.); (M.C.); (M.L.)
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada
- Division of Thoracic Surgery, Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5T 1P5, Canada
- Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, ON M5G 2N2, Canada
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Keller MB, Tian X, Jang MK, Meda R, Charya A, Berry GJ, Marboe CC, Kong H, Ponor IL, Aryal S, Orens JB, Shah PD, Nathan SD, Agbor-Enoh S. Higher Molecular Injury at Diagnosis of Acute Cellular Rejection Increases the Risk of Lung Allograft Failure: A Clinical Trial. Am J Respir Crit Care Med 2024; 209:1238-1245. [PMID: 38190701 PMCID: PMC11146548 DOI: 10.1164/rccm.202305-0798oc] [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: 05/03/2023] [Accepted: 01/08/2024] [Indexed: 01/10/2024] Open
Abstract
Rationale: The association of acute cellular rejection (ACR) with chronic lung allograft dysfunction (CLAD) in lung transplant recipients has primarily been described before consensus recommendations incorporating restrictive phenotypes. Furthermore, the association of the degree of molecular allograft injury during ACR with CLAD or death remains undefined. Objectives: To investigate the association of ACR with the risk of CLAD or death and to further investigate if this risk depends on the degree of molecular allograft injury. Methods: This multicenter, prospective cohort study included 188 lung transplant recipients. Subjects underwent serial plasma collections for donor-derived cell-free DNA (dd-cfDNA) at prespecified time points and bronchoscopy. Multivariable Cox proportional-hazards analysis was conducted to analyze the association of ACR with subsequent CLAD or death as well as the association of dd-cfDNA during ACR with risk of CLAD or death. Additional outcomes analyses were performed with episodes of ACR categorized as "high risk" (dd-cfDNA ⩾ 1%) and "low risk" (dd-cfDNA < 1%). Measurements and Main Results: In multivariable analysis, ACR was associated with the composite outcome of CLAD or death (hazard ratio [HR], 2.07 [95% confidence interval (CI), 1.05-4.10]; P = 0.036). Elevated dd-cfDNA ⩾ 1% at ACR diagnosis was independently associated with increased risk of CLAD or death (HR, 3.32; 95% CI, 1.31-8.40; P = 0.012). Patients with high-risk ACR were at increased risk of CLAD or death (HR, 3.13; 95% CI, 1.41-6.93; P = 0.005), whereas patients with low-risk status ACR were not. Conclusions: Patients with ACR are at higher risk of CLAD or death, but this may depend on the degree of underlying allograft injury at the molecular level. Clinical trial registered with www.clinicaltrials.gov (NCT02423070).
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Affiliation(s)
- Michael B. Keller
- Genomic Research Alliance for Transplantation, Bethesda, Maryland
- Laboratory of Applied Precision Omics and
- Division of Pulmonary and Critical Care Medicine, The Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Xin Tian
- Office of Biostatistics Research, NHLBI, NIH, Bethesda, Maryland
| | - Moon Kyoo Jang
- Genomic Research Alliance for Transplantation, Bethesda, Maryland
- Laboratory of Applied Precision Omics and
| | - Rohan Meda
- Laboratory of Applied Precision Omics and
| | - Ananth Charya
- University of Maryland Medical Center, Baltimore, Maryland
| | - Gerald J. Berry
- Genomic Research Alliance for Transplantation, Bethesda, Maryland
- School of Medicine, Stanford University, Stanford, California
| | - Charles C. Marboe
- Genomic Research Alliance for Transplantation, Bethesda, Maryland
- Department of Pathology and Cell Biology, Vagelos College of Physicians and Surgeons of Columbia University, New York, New York
| | - Hyesik Kong
- Genomic Research Alliance for Transplantation, Bethesda, Maryland
- Laboratory of Applied Precision Omics and
| | - Ileana L. Ponor
- Department of Medicine, Johns Hopkins Bayview Medical Center, Baltimore, Maryland; and
| | - Shambhu Aryal
- Genomic Research Alliance for Transplantation, Bethesda, Maryland
- Advanced Lung Disease and Lung Transplant Program, Inova Fairfax Hospital, Fairfax, Virginia
| | - Jonathan B. Orens
- Genomic Research Alliance for Transplantation, Bethesda, Maryland
- Division of Pulmonary and Critical Care Medicine, The Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Pali D. Shah
- Genomic Research Alliance for Transplantation, Bethesda, Maryland
- Division of Pulmonary and Critical Care Medicine, The Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Steven D. Nathan
- Genomic Research Alliance for Transplantation, Bethesda, Maryland
- Advanced Lung Disease and Lung Transplant Program, Inova Fairfax Hospital, Fairfax, Virginia
| | - Sean Agbor-Enoh
- Genomic Research Alliance for Transplantation, Bethesda, Maryland
- Laboratory of Applied Precision Omics and
- Division of Pulmonary and Critical Care Medicine, The Johns Hopkins School of Medicine, Baltimore, Maryland
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Auner S, Hillebrand C, Boehm PM, Boecker J, Koren D, Schwarz S, Kovacs Z, Murakoezy G, Fischer G, Aigner C, Hoetzenecker K, Jaksch P, Benazzo A. Impact of Transient and Persistent Donor-Specific Antibodies in Lung Transplantation. Transpl Int 2024; 37:12774. [PMID: 38779355 PMCID: PMC11110840 DOI: 10.3389/ti.2024.12774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 04/15/2024] [Indexed: 05/25/2024]
Abstract
Lung transplantation (LuTx) is an established treatment for patients with end-stage lung diseases, however, outcomes are limited by acute and chronic rejection. One aspect that has received increasing attention is the role of the host's humoral alloresponse, particularly the formation of de novo donor-specific antibodies (dnDSAs). The aim of this study was to investigate the clinical significance of transient and persistent dnDSAs and to understand their impact on outcomes after LuTx. A retrospective analysis was conducted using DSA screening data from LuTx recipients obtained at the Medical University of Vienna between February 2016 and March 2021. Of the 405 LuTx recipients analyzed, 205 patients developed dnDSA during the follow-up period. Among these, 167 (81%) had transient dnDSA and 38 (19%) persistent dnDSA. Persistent but not transient dnDSAs were associated with chronic lung allograft dysfunction (CLAD) and antibody-mediated rejection (AMR) (p < 0.001 and p = 0.006, respectively). CLAD-free survival rates for persistent dnDSAs at 1-, 3-, and 5-year post-transplantation were significantly lower than for transient dnDSAs (89%, 59%, 56% vs. 91%, 79%, 77%; p = 0.004). Temporal dynamics of dnDSAs after LuTx have a substantial effect on patient outcomes. This study underlines that the persistence of dnDSAs poses a significant risk to graft and patient survival.
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Affiliation(s)
- S. Auner
- Vienna Lung Transplant Program, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - C. Hillebrand
- Vienna Lung Transplant Program, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - P. M. Boehm
- Vienna Lung Transplant Program, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - J. Boecker
- Vienna Lung Transplant Program, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - D. Koren
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Vienna, Vienna, Austria
| | - S. Schwarz
- Vienna Lung Transplant Program, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Z. Kovacs
- Vienna Lung Transplant Program, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - G. Murakoezy
- Vienna Lung Transplant Program, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - G. Fischer
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Vienna, Vienna, Austria
| | - C. Aigner
- Vienna Lung Transplant Program, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - K. Hoetzenecker
- Vienna Lung Transplant Program, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - P. Jaksch
- Vienna Lung Transplant Program, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - A. Benazzo
- Vienna Lung Transplant Program, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
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Iturbe-Fernández D, de Pablo Gafas A, Mora Cuesta VM, Alonso Moralejo R, Quezada Loaiza CA, Pérez González V, López-Padilla D, Cifrián JM. Everolimus Treatment for Chronic Lung Allograft Dysfunction in Lung Transplantation. Life (Basel) 2024; 14:603. [PMID: 38792624 PMCID: PMC11123303 DOI: 10.3390/life14050603] [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: 02/08/2024] [Revised: 03/20/2024] [Accepted: 04/26/2024] [Indexed: 05/26/2024] Open
Abstract
Our study aims to evaluate the effect of everolimus treatment on lung function in lung transplant (LT) patients with established chronic lung allograft dysfunction (CLAD). METHODS This retrospective study included LT patients in two reference LT units who started everolimus therapy to treat CLAD from October 2008 to October 2016. We assessed the variation in the maximum forced expiratory volume in the first second (FEV1) before and after the treatment. RESULTS Fifty-seven patients were included in this study. The variation in the FEV1 was -102.7 (149.6) mL/month before starting everolimus compared to -44.7 (109.6) mL/month within the first three months, +1.4 (63.5) mL/month until the sixth month, and -7.4 (46.2) mL/month until the twelfth month (p < 0.05). Glomerular filtrate remained unchanged after everolimus treatment [59.1 (17.5) mL/min per 1.73 m2 at baseline and 60.9 (19.6) mL/min per 1.73 m2, 57.7 (20.5) mL/min per 1.73 m2, and 57.3 (17.8) mL/min per 1.73 m2, at 1, 3, and 6 months, respectively] (p > 0.05). Everolimus was withdrawn in 22 (38.6%) patients. The median time to withdrawal was 14.1 (5.5-25.1) months. CONCLUSIONS This study showed an improvement in FEV1 decline in patients with CLAD treated with everolimus. However, the drug was withdrawn in a high proportion of patients.
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Affiliation(s)
- David Iturbe-Fernández
- Lung Transplant Unit, Pulmonary Medicine Department, Marqués de Valdecilla University Hospital, 39008 Santander, Spain; (V.M.M.C.); (J.M.C.)
| | - Alicia de Pablo Gafas
- Lung Transplant Unit, Pulmonary Medicine Department, Doce de Octubre University Hospital, 28041 Madrid, Spain; (A.d.P.G.); (R.A.M.); (C.A.Q.L.); (V.P.G.)
| | - Víctor Manuel Mora Cuesta
- Lung Transplant Unit, Pulmonary Medicine Department, Marqués de Valdecilla University Hospital, 39008 Santander, Spain; (V.M.M.C.); (J.M.C.)
| | - Rodrigo Alonso Moralejo
- Lung Transplant Unit, Pulmonary Medicine Department, Doce de Octubre University Hospital, 28041 Madrid, Spain; (A.d.P.G.); (R.A.M.); (C.A.Q.L.); (V.P.G.)
| | - Carlos Andrés Quezada Loaiza
- Lung Transplant Unit, Pulmonary Medicine Department, Doce de Octubre University Hospital, 28041 Madrid, Spain; (A.d.P.G.); (R.A.M.); (C.A.Q.L.); (V.P.G.)
- CIBER Respiratory Diseases (CIBERES), Carlos III Health Institute, 28029 Madrid, Spain
| | - Virginia Pérez González
- Lung Transplant Unit, Pulmonary Medicine Department, Doce de Octubre University Hospital, 28041 Madrid, Spain; (A.d.P.G.); (R.A.M.); (C.A.Q.L.); (V.P.G.)
| | - Daniel López-Padilla
- Pulmonary Medicine Department, Gregorio Marañón University Hospital, 28007 Madrid, Spain
| | - José M. Cifrián
- Lung Transplant Unit, Pulmonary Medicine Department, Marqués de Valdecilla University Hospital, 39008 Santander, Spain; (V.M.M.C.); (J.M.C.)
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Friedlander S, Pogatchnik B, Furuya Y, Allen T. Pulmonary transplant complications: a radiologic review. J Cardiothorac Surg 2024; 19:270. [PMID: 38702686 PMCID: PMC11067284 DOI: 10.1186/s13019-024-02731-w] [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: 12/19/2023] [Accepted: 03/29/2024] [Indexed: 05/06/2024] Open
Abstract
Lung transplantation has become the definitive treatment for end stage respiratory disease. Numbers and survival rates have increased over the past decade, with transplant recipients living longer and with greater comorbidities, resulting in greater complexity of care. Common and uncommon complications that occur in the immediate, early, intermediate, and late periods can have significant impact on the course of the transplant. Fortunately, advancements in surgery, medical care, and imaging as well as other diagnostics work to prevent, identify, and manage complications that would otherwise have a negative impact on survivability. This review will focus on contextualizing complications both categorically and chronologically, with highlights of specific imaging and clinical features in order to inform both radiologists and clinicians involved in post-transplant care.
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Affiliation(s)
- Samuel Friedlander
- Department of Radiology, University of Minnesota Medical School, Minneapolis, MN, 55455, USA.
| | - Brian Pogatchnik
- Department of Radiology, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Yuka Furuya
- Medical Director of Lung Transplant, CareDX, Inc, Brisbane, CA, 94005, USA
| | - Tadashi Allen
- Department of Radiology, University of Minnesota Medical School, Minneapolis, MN, 55455, USA
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Nykänen AI, Keshavjee S, Liu M. Creating superior lungs for transplantation with next-generation gene therapy during ex vivo lung perfusion. J Heart Lung Transplant 2024; 43:838-848. [PMID: 38310996 DOI: 10.1016/j.healun.2024.01.016] [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: 09/17/2023] [Revised: 12/23/2023] [Accepted: 01/29/2024] [Indexed: 02/06/2024] Open
Abstract
Engineering donor organs to better tolerate the harmful non-immunological and immunological responses inherently related to solid organ transplantation would improve transplant outcomes. Our enhanced knowledge of ischemia-reperfusion injury, alloimmune responses and pathological fibroproliferation after organ transplantation, and the advanced toolkit available for gene therapies, have brought this goal closer to clinical reality. Ex vivo organ perfusion has evolved rapidly especially in the field of lung transplantation, where clinicians routinely use ex vivo lung perfusion (EVLP) to confirm the quality of marginal donor lungs before transplantation, enabling safe transplantation of organs originally considered unusable. EVLP would also be an attractive platform to deliver gene therapies, as treatments could be administered to an isolated organ before transplantation, thereby providing a window for sophisticated organ engineering while minimizing off-target effects to the recipient. Here, we review the status of lung transplant first-generation gene therapies that focus on inducing transgene expression in the target cells. We also highlight recent advances in next-generation gene therapies, that enable gene editing and epigenetic engineering, that could be used to permanently change the donor organ genome and to induce widespread transcriptional gene expression modulation in the donor lung. In a future vision, dedicated organ repair and engineering centers will use gene editing and epigenetic engineering, to not only increase the donor organ pool, but to create superior organs that will function better and longer in the recipient.
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Affiliation(s)
- Antti I Nykänen
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada; Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Department of Cardiothoracic Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Shaf Keshavjee
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada; Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Division of Thoracic Surgery, Department of Surgery, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Mingyao Liu
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, Ontario, Canada; Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.
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Westrupp N, Berry CD, Cole T, Shanthikumar S, Welsh L. Detection of Bronchiolitis Obliterans Syndrome Using Nitrogen Multiple Breath Washout in Children Posthemopoietic Stem Cell Transplant. Transplant Cell Ther 2024; 30:524.e1-524.e9. [PMID: 38360272 DOI: 10.1016/j.jtct.2024.02.013] [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: 11/14/2023] [Revised: 02/05/2024] [Accepted: 02/08/2024] [Indexed: 02/17/2024]
Abstract
Bronchiolitis obliterans syndrome (BOS) is a severe complication following hemopoietic stem cell transplantation (HSCT) and is often undetected until there is significant deterioration in pulmonary function. Lung clearance index (LCI2.5) derived from the nitrogen multiple breath washout (N2MBW) test may be more feasible and sensitive than spirometry, which is currently used for surveillance and detection of BOS. We aimed to examine the feasibility of performing surveillance N2MBW in children post-HSCT, and in an exploratory analysis, determine if LCI2.5 led to earlier detection of BOS when compared to spirometric indices. Participants aged 5 to 17 years were recruited prior to receiving HSCT into a prospective, single-center, feasibility study at the Royal Children's Hospital, Melbourne. N2MBW and spirometry were performed within the month prior to transplant and repeated at 3, 6, 9, and 12 months post-transplant. Data were also collected on the presence of graft-versus-host (GVHD) disease in any organ, including the lungs. Twenty-one (12 male) children with a mean age of 13.4 (range 9.2 to 17.1) years at recruitment participated in this study. Prior to HSCT, all participants had normal LCI2.5, while 16 (76%) demonstrated normal forced expiratory volume in 1 second (FEV1). Ninety-nine percent of N2MBW tests were technically acceptable, compared with 66% of spirometry tests. Three participants developed BOS, while 2 participants died of other respiratory complications. At 6 and 12 months post-transplant, the BOS group had increases in LCI2.5 ranging from 3 to 5 units and mean reductions in FEV1 % predicted of 40% to 53% relative to pre HSCT values, respectively. In those who developed BOS, post-HSCT LCI2.5 values were significantly worse when compared with the no BOS group (P < .001). Relative changes in LCI2.5 and FEV1 were both predictive of BOS at 6 months post HSCT. This study demonstrates that N2MBW is a more feasible test compared with spirometry in children post HSCT. However, in an exploratory analysis, LCI2.5 did not lead to earlier detection of BOS, when compared to spirometry.
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Affiliation(s)
- Nicole Westrupp
- Department of Respiratory and Sleep Medicine, Royal Children's Hospital, Parkville, Victoria, Australia; Infection and Immunity, Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Cassidy Du Berry
- Department of Respiratory and Sleep Medicine, Royal Children's Hospital, Parkville, Victoria, Australia; Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia; Infection and Immunity, Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Theresa Cole
- Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia; Children's Cancer Centre, Royal Children's Hospital, Parkville, Victoria, Australia; Infection and Immunity, Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Shivanthan Shanthikumar
- Department of Respiratory and Sleep Medicine, Royal Children's Hospital, Parkville, Victoria, Australia; Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia; Infection and Immunity, Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Liam Welsh
- Department of Respiratory and Sleep Medicine, Royal Children's Hospital, Parkville, Victoria, Australia; Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia; Infection and Immunity, Murdoch Children's Research Institute, Parkville, Victoria, Australia.
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46
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Du W, Wang X, Zhang D, Zuo X. Exploratory associations of tacrolimus exposure and clinical outcomes after lung transplantation: A retrospective, single center experience. Eur J Clin Pharmacol 2024; 80:747-757. [PMID: 38363388 DOI: 10.1007/s00228-024-03640-6] [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: 11/16/2023] [Accepted: 01/25/2024] [Indexed: 02/17/2024]
Abstract
PURPOSE This study aimed to investigate the potential impact of tacrolimus (TAC) exposure on clinical outcomes after lung transplantation. METHODS This retrospective observational study enrolled a total of 228 lung transplant recipients. TAC trough levels (C0) were collected for 3 intervals: 0-3 months, 3-12 months, and 12-24 months. The intra-patient variability (IPV) was calculated using coefficient of variation. Genotyping of CYP3A5*3 (rs776746) was performed. Patients were further divided into groups based on the C0 cut-off value of 8 ng/mL and IPV cut-off value of 30%. Cox proportional hazards regression models were used to explore the potential impact of C0 and IPV on outcomes of interests, including de-novo donor-specific antibodies (dnDSA), chronic lung allograft dysfunction (CLAD) and mortality. RESULTS The influence of CYP3A5*3 polymorphism was only significant for C0 and IPV during the first 3 months. Low C0 (< 8 ng/mL) at 3-12 months increased the risk of dnDSA (hazard ratio [HR] 2.696, 95% confidence interval [CI] 1.046-6.953) and mortality (HR 2.531, 95% CI 1.368-4.685), while High IPV (≥ 30%) during this period was associated with an increased risk of mortality (HR 2.543, 95% CI 1.336-4.839). Patients with Low C0/High IPV combination had significantly higher risks for dnDSA (HR 4.381, 95% CI 1.279-15.008) and survival (HR 6.179, 95% CI 2.598-14.698), surpassing the predictive power provided by C0 or IPV alone. CONCLUSION A combination of Low C0/High IPV might be considered in categorizing patients towards risk of adverse clinical outcomes following lung transplantation.
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Affiliation(s)
- Wenwen Du
- Department of Pharmacy, China-Japan Friendship Hospital, Chaoyang District, Beijing, China
| | - Xiaoxing Wang
- Department of Pharmacy, China-Japan Friendship Hospital, Chaoyang District, Beijing, China
| | - Dan Zhang
- Department of Pharmacy, China-Japan Friendship Hospital, Chaoyang District, Beijing, China
| | - Xianbo Zuo
- Department of Pharmacy, China-Japan Friendship Hospital, Chaoyang District, Beijing, China.
- Department of Dermatology, China-Japan Friendship Hospital, Chaoyang District, Beijing, China.
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Heigl T, Kaes J, Aelbrecht C, Serré J, Yamada Y, Geudens V, Van Herck A, Vanstapel A, Sacreas A, Ordies S, Frick A, Saez Gimenez B, Van Slambrouck J, Beeckmans H, Acet Oztürk NA, Orlitova M, Vaneylen A, Claes S, Schols D, Vande Velde G, Schupp J, Kaminski N, Boesch M, Korf H, van der Merwe S, Dupont L, Vanoirbeek J, Godinas L, Van Raemdonck DE, Janssens W, Gayan-Ramirez G, Ceulemans LJ, McDonough JE, Verbeken EK, Vos R, Vanaudenaerde BM. The nature of chronic rejection after lung transplantation: a murine orthotopic lung transplant study. Front Immunol 2024; 15:1369536. [PMID: 38736881 PMCID: PMC11084670 DOI: 10.3389/fimmu.2024.1369536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 03/25/2024] [Indexed: 05/14/2024] Open
Abstract
Introduction Chronic rejection is a major complication post-transplantation. Within lung transplantation, chronic rejection was considered as airway centred. Chronic Lung Allograft Dysfunction (CLAD), defined to cover all late chronic complications, makes it more difficult to understand chronic rejection from an immunological perspective. This study investigated the true nature, timing and location of chronic rejection as a whole, within mouse lung transplantation. Methods 40 mice underwent an orthotopic left lung transplantation, were sacrificed at day 70 and evaluated by histology and in vivo µCT. For timing and location of rejection, extra grafts were sacrificed at day 7, 35, 56 and investigated by ex vivo µCT or single cell RNA (scRNA) profiling. Results Chronic rejection originated as innate inflammation around small arteries evolving toward adaptive organization with subsequent end-arterial fibrosis and obliterans. Subsequently, venous and pleural infiltration appeared, followed by airway related bronchiolar folding and rarely bronchiolitis obliterans was observed. Ex vivo µCT and scRNA profiling validated the time, location and sequence of events with endothelial destruction and activation as primary onset. Conclusion Against the current belief, chronic rejection in lung transplantation may start as an arterial response, followed by responses in venules, pleura, and, only in the late stage, bronchioles, as may be seen in some but not all patients with CLAD.
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Affiliation(s)
- Tobias Heigl
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Janne Kaes
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Celine Aelbrecht
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Jef Serré
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Yoshito Yamada
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
- Department of Thoracic Surgery, Kyoto University Hospital, Kyoto, Japan
| | - Vincent Geudens
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Anke Van Herck
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Arno Vanstapel
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
- Translational Cell and Tissue Research, KU Leuven and UZ Gasthuisberg, Leuven, Belgium
| | - Annelore Sacreas
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Sofie Ordies
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Anna Frick
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Berta Saez Gimenez
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
- Pulmonology Service, Lung Transplant Program, Hospital Universitari Vall d’Hebrón, Barcelona, Spain
| | - Jan Van Slambrouck
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Hanne Beeckmans
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Nilüfer A. Acet Oztürk
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
- Department of Respiratory Medicine, Uludag University Faculty of Medicine, Bursa, Türkiye
| | - Michaela Orlitova
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Annemie Vaneylen
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Sandra Claes
- Translational Cell and Tissue Research, KU Leuven and UZ Gasthuisberg, Leuven, Belgium
| | - Dominique Schols
- Translational Cell and Tissue Research, KU Leuven and UZ Gasthuisberg, Leuven, Belgium
| | - Greetje Vande Velde
- Department of Imaging and Pathology, Biomedical MRI/MoSAIC, KU Leuven, Leuven, Belgium
| | - Jonas Schupp
- Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, CT, United States
- Department of Respiratory Medicine, Hannover Medical School and Biomedical Research in End-stage and Obstructive Lung Disease Hannover, German Lung Research Center (DZL), Hannover, Germany
| | - Naftali Kaminski
- Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, CT, United States
| | - Markus Boesch
- Laboratory of Hepatology, CHROMETA Department, KU Leuven, Leuven, Belgium
| | - Hannelie Korf
- Laboratory of Hepatology, CHROMETA Department, KU Leuven, Leuven, Belgium
| | - Schalk van der Merwe
- Laboratory of Hepatology, CHROMETA Department, KU Leuven, Leuven, Belgium
- Department of Gastroenterology and Hepatology, UZ Leuven, Leuven, Belgium
| | - Lieven Dupont
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Jeroen Vanoirbeek
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Laurent Godinas
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Dirk E. Van Raemdonck
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Wim Janssens
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Ghislaine Gayan-Ramirez
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Laurens J. Ceulemans
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - John E. McDonough
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
- Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, CT, United States
| | - Erik K. Verbeken
- Translational Cell and Tissue Research, KU Leuven and UZ Gasthuisberg, Leuven, Belgium
| | - Robin Vos
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
| | - Bart M. Vanaudenaerde
- Laboratory of Respiratory Diseases and Thoracic Surgery, KULeuven and UZ Gasthuisberg, Leuven, Belgium
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Renaud-Picard B, Berra G, Hwang D, Huszti E, Miyamoto E, Berry GJ, Pal P, Juvet S, Keshavjee S, Martinu T. Spectrum of chronic lung allograft dysfunction pathology in human lung transplantation. J Heart Lung Transplant 2024:S1053-2498(24)01563-8. [PMID: 38663465 DOI: 10.1016/j.healun.2024.04.002] [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: 08/23/2023] [Revised: 03/11/2024] [Accepted: 04/09/2024] [Indexed: 07/07/2024] Open
Abstract
BACKGROUND Long-term survival after lung transplantation (LTx) remains limited by chronic lung allograft dysfunction (CLAD), which includes 2 main phenotypes: bronchiolitis obliterans syndrome (BOS) and restrictive allograft syndrome (RAS), with possible overlap. We aimed to detail and quantify pathological features of these CLAD sub-types. METHODS Peripheral and central paraffin-embedded explanted lung samples were obtained from 20 consecutive patients undergoing a second LTx for CLAD, from 3 lobes. Thirteen lung samples, collected from non-transplant lobectomies or donor lungs, were used as controls. Blinded semi-quantitative grading was performed to assess airway fibrotic changes, parenchymal and pleural fibrosis, and epithelial and vascular abnormalities. RESULTS CLAD lung samples had higher scores for all airway- and lung-related parameters compared to controls. There was a notable overlap in histologic scores between BOS and RAS, with a wide range of scores in both conditions. Parenchymal and vascular fibrosis scores were significantly higher in RAS compared to BOS (p = 0.003 for both). We observed a significant positive correlation between the degree of inflammation around each airway, the severity of epithelial changes, and airway fibrosis. Immunofluorescence staining demonstrated a trend toward a lower frequency of club cells in CLAD and a higher frequency of apoptotic club cells in BOS samples (p = 0.01). CONCLUSIONS CLAD is a spectrum of airway, parenchymal, and pleural fibrosis, as well as epithelial, vascular, and inflammatory pathologic changes, where BOS and RAS overlap significantly. Our semi-quantitative grading score showed a generally high inter-reader reliability and may be useful for future CLAD histologic assessments.
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Affiliation(s)
- Benjamin Renaud-Picard
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, Toronto, Ontario, Canada; Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada; INSERM Unité Mixte de Recherche 1260, Regenerative Nanomedicine, University of Strasbourg, Strasbourg, France
| | - Gregory Berra
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, Toronto, Ontario, Canada; Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada; Service de Pneumologie, Département de Médecine, Hôpitaux Universitaires de Genève, Geneva, Switzerland
| | - David Hwang
- Department of Pathology, Sunnybrook Hospital, Toronto, Ontario, Canada
| | - Ella Huszti
- Biostatistics Research Unit, University Health Network, Toronto, Ontario, Canada
| | - Ei Miyamoto
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, Toronto, Ontario, Canada; Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada
| | - Gerald J Berry
- Department of Pathology, Stanford University School of Medicine, Stanford, California
| | - Prodipto Pal
- Laboratory Medicine Program, University Health Network, Toronto, Ontario, Canada
| | - Stephen Juvet
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, Toronto, Ontario, Canada; Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Shaf Keshavjee
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, Toronto, Ontario, Canada; Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada; Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Tereza Martinu
- Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, Toronto, Ontario, Canada; Toronto Lung Transplant Program, Ajmera Transplant Centre, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada.
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49
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Belousova N, Cheng A, Matelski J, Vasileva A, Wu JKY, Ghany R, Martinu T, Ryan CM, Chow CW. Effects of donor smoking history on early post-transplant lung function measured by oscillometry. Front Med (Lausanne) 2024; 11:1328395. [PMID: 38654829 PMCID: PMC11037252 DOI: 10.3389/fmed.2024.1328395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 03/22/2024] [Indexed: 04/26/2024] Open
Abstract
Introduction Prior studies assessing outcomes of lung transplants from cigarette-smoking donors found mixed results. Oscillometry, a non-invasive test of respiratory impedance, detects changes in lung function of smokers prior to diagnosis of COPD, and identifies spirometrically silent episodes of rejection post-transplant. We hypothesise that oscillometry could identify abnormalities in recipients of smoking donor lungs and discriminate from non-smoking donors. Methods This prospective single-center cohort study analysed 233 double-lung recipients. Oscillometry was performed alongside routine conventional pulmonary function tests (PFT) post-transplant. Multivariable regression models were constructed to compare oscillometry and conventional PFT parameters between recipients of lungs from smoking vs non-smoking donors. Results The analysis included 109 patients who received lungs from non-smokers and 124 from smokers. Multivariable analysis identified significant differences between recipients of smoking and non-smoking lungs in the oscillometric measurements R5-19, X5, AX, R5z and X5z, but no differences in %predicted FEV1, FEV1/FVC, %predicted TLC or %predicted DLCO. An analysis of the smoking group also demonstrated associations between increasing smoke exposure, quantified in pack years, and all the oscillometry parameters, but not the conventional PFT parameters. Conclusion An interaction was identified between donor-recipient sex match and the effect of smoking. The association between donor smoking and oscillometry outcomes was significant predominantly in the female donor/female recipient group.
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Affiliation(s)
- Natalia Belousova
- Toronto Lung Transplant Program, Ajmera Multi-Organ Transplant Program and Division of Respirology, University Health Network, Tonronto, ON, Canada
- Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Pneumology, Aduch Cystic Fibrosis and Lung Transplantation Department, Foch Hospital, Suresnes, France
| | - Albert Cheng
- Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - John Matelski
- Pneumology, Aduch Cystic Fibrosis and Lung Transplantation Department, Foch Hospital, Suresnes, France
| | - Anastasiia Vasileva
- Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Joyce K. Y. Wu
- Toronto General Pulmonary Function Laboratory, University Health Network, Toronto, ON, Canada
| | - Rasheed Ghany
- Toronto Lung Transplant Program, Ajmera Multi-Organ Transplant Program and Division of Respirology, University Health Network, Tonronto, ON, Canada
| | - Tereza Martinu
- Toronto Lung Transplant Program, Ajmera Multi-Organ Transplant Program and Division of Respirology, University Health Network, Tonronto, ON, Canada
- Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Clodagh M. Ryan
- Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Toronto General Pulmonary Function Laboratory, University Health Network, Toronto, ON, Canada
| | - Chung-Wai Chow
- Toronto Lung Transplant Program, Ajmera Multi-Organ Transplant Program and Division of Respirology, University Health Network, Tonronto, ON, Canada
- Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
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50
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Crowhurst TD, Butler JA, Bussell LA, Johnston SD, Yeung D, Hodge G, Snell GI, Yeo A, Holmes M, Holmes-Liew CL. Impulse Oscillometry Versus Spirometry to Detect Bronchiolitis Obliterans Syndrome in Bilateral Lung Transplant Recipients: A Prospective Diagnostic Study. Transplantation 2024; 108:1004-1014. [PMID: 38044496 DOI: 10.1097/tp.0000000000004868] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
BACKGROUND Chronic lung allograft dysfunction (CLAD), and especially bronchiolitis obliterans syndrome (BOS), remain dominant causes of morbidity and mortality after lung transplantation. Interest is growing in the forced oscillation technique, of which impulse oscillometry (IOS) is a form, as a tool to improve our understanding of these disorders. However, data remain limited and no longitudinal studies have been published, meaning there is no information regarding any capacity IOS may have for the early detection of CLAD. METHODS We conducted a prospective longitudinal study enrolling a consecutive sample of adult bilateral lung transplant recipients with healthy lung allografts or CLAD and performed ongoing paired IOS and spirometry tests on a clinically determined basis. We assessed for correlations between IOS and spirometry and examined any predictive value either modality may hold for the early detection of BOS. RESULTS We enrolled 91 patients and conducted testing for 43 mo, collecting 558 analyzable paired IOS and spirometry tests, with a median of 9 tests per subject (interquartile range, 5-12) and a median testing interval of 92 d (interquartile range, 62-161). Statistically significant moderate-to-strong correlations were demonstrated between all IOS parameters and spirometry, except resistance at 20 Hz, which is a proximal airway measure. No predictive value for the early detection of BOS was found for IOS or spirometry. CONCLUSIONS This study presents the first longitudinal data from IOS after lung transplantation and adds considerably to the growing literature, showing unequivocal correlations with spirometry but failing to demonstrate a predictive value for BOS.
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Affiliation(s)
- Thomas D Crowhurst
- Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, SA, Australia
- Department of Haematology, Royal Adelaide Hospital, Adelaide, SA, Australia
| | - Jessica A Butler
- Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, SA, Australia
| | - Lauren A Bussell
- Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, SA, Australia
| | - Sonya D Johnston
- Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, SA, Australia
| | - David Yeung
- Department of Haematology, Royal Adelaide Hospital, Adelaide, SA, Australia
- Lung Transplant Service, The Alfred, Melbourne, VIC, Australia
| | - Greg Hodge
- Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, SA, Australia
- Department of Haematology, Royal Adelaide Hospital, Adelaide, SA, Australia
| | - Greg I Snell
- School of Medicine, Monash University, Melbourne, VIC, Australia
- SA Lung Transplant Unit, Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, SA, Australia
| | - Aeneas Yeo
- Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, SA, Australia
- Department of Haematology, Royal Adelaide Hospital, Adelaide, SA, Australia
| | - Mark Holmes
- Department of Haematology, Royal Adelaide Hospital, Adelaide, SA, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Chien-Li Holmes-Liew
- Department of Haematology, Royal Adelaide Hospital, Adelaide, SA, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
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