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Bronchiolitis obliterans syndrome

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https://www.readbyqxmd.com/read/27933655/immunological-diversity-in-phenotypes-of-chronic-lung-allograft-dysfunction-a-comprehensive-immunohistochemical-analysis
#1
Elly Vandermeulen, Elise Lammertyn, Stijn E Verleden, David Ruttens, Hannelore Bellon, Mario Ricciardi, Jana Somers, Ken R Bracke, Kathleen Van Den Eynde, Thomas Tousseyn, Guy G Brusselle, Erik K Verbeken, Johny Verschakelen, Marie-Paule Emonds, Dirk E Van Raemdonck, Geert M Verleden, Robin Vos, Bart M Vanaudenaerde
Chronic rejection after organ transplantation is defined as a humoral- and cell-mediated immune response directed against the allograft. In lung transplantation, chronic rejection is nowadays clinically defined as a cause of chronic lung allograft dysfunction (CLAD), consisting of different clinical phenotypes including restrictive allograft syndrome (RAS) and bronchiolitis obliterans syndrome (BOS). However, the differential role of humoral and cellular immunity is not investigated up to now. Explant lungs of patients with end-stage BOS (n = 19) and RAS (n = 18) were assessed for the presence of lymphoid (B and T cells) and myeloid cells (dendritic cells, eosinophils, mast cells, neutrophils, and macrophages) and compared to nontransplant control lung biopsies (n = 21)...
November 7, 2016: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/27931586/observational-study-of-methotrexate-in-the-treatment-of-bronchiolitis-obliterans-syndrome
#2
S Sithamparanathan, L Thirugnanasothy, K E Morley, A J Fisher, J L Lordan, G Meachery, G Parry, P A Corris
BACKGROUND: Methotrexate (MTX) is potential change in immunosuppression after lung transplantation that may help to slow down the decline in lung function in bronchiolitis obliterans syndrome (BOS). METHODS: We sought to analyze the safety and efficacy of MTX in patients with BOS, by retrospective case review. RESULTS: Thirty lung allograft patients were treated with MTX for BOS after one bilateral lower lobe, nine single, 16 bilateral, and four heart-lung transplants...
December 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27925791/reemergence-of-lower-airway-microbiota-in-lung-transplant-patients-with-cystic-fibrosis
#3
Saad A Syed, Fiona J Whelan, Barbara Waddell, Harvey R Rabin, Michael D Parkins, Michael G Surette
RATIONALE: Chronic lung infections are a hallmark of cystic fibrosis; they are responsible for progressive airway destruction and ultimately lead to respiratory death or the requirement for life-saving bilateral lung transplant. Furthermore, recurrent isolation of airway pathogens such as Pseudomonas aeruginosa in the allograft after transplant is associated with adverse outcomes, including bronchiolitis obliterans syndrome and acute infections. Little information exists on the impact of bilateral lung transplant on the lower-airway microbiota...
December 2016: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/27916030/-short-term-outcomes-of-lung-transplant-recipients-using-organs-from-brain-death-donors
#4
W X He, C Jiang, X G Liu, W Huang, C Chen, L Jiang, B Yang, K Wu, Q K Chen, Y Yang, Y M Yu, G N Jiang
Objective: To assess short-term outcomes after lung transplantation with organs procured following brain death. Methods: Between April 2015 and July 2016, all 17 recipients after lung transplantation using organs from brain death donors (DBD) at Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine were enrolled in this study. All patients were male, aging (60±7) years, including 11 chronic obstructive pulmonary disease, 5 idiopathic pulmonary fibrosis, 1 silicosis...
December 1, 2016: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/27906831/bos-is-associated-with-increased-cytotoxic-pro-inflammatory-cd8-t-nkt-like-and-nk-cells-in-the-small-airways
#5
Greg Hodge, Sandra Hodge, Aeneas Yeo, Phan Nguyen, Emily Hopkins, Holmes-Liew Cl, Paul N Reynolds, Mark Holmes
BACKGROUND: Immunosuppression therapy following lung transplantation fails to prevent bronchiolitis obliterans syndrome (BOS) in many patients, primarily a disease of the small airways. We have reported that BOS is associated with a lack of suppression of cytotoxic mediators, and pro-inflammatory cytokines, in peripheral blood T, NKT-like (particularly CD8+) and NK cells. We also showed a loss of glucocorticoid receptor (GCR) in pro-inflammatory lymphocytes following transplant. It is unknown whether these pro-inflammatory lymphocytes target the small and/or large airways in BOS...
December 1, 2016: Transplantation
https://www.readbyqxmd.com/read/27893614/the-presence-of-pretransplant-hla-antibodies-does-not-impact-the-development-of-chronic-lung-allograft-dysfunction-or-clad-related-death
#6
Oscar E Zazueta, Sara E Preston, Anna Moniodis, Sabrina Fried, Miae Kim, Keri Townsend, Isabelle Wood, Steve Boukedes, Indira Guleria, Phillip Camp, Souheil El-Chemaly, Ivan O Rosas, Anil Chandraker, Edgar Milford, Hilary J Goldberg
BACKGROUND: Development of Donor-specific Antibodies (DSA) after lung transplantation is associated with antibody mediated rejection (AMR), acute cellular rejection, and bronchiolitis obliterans syndrome (BOS); however, the significance of circulating antibodies before transplant remains unclear. METHODS: We performed a retrospective cohort study including recipients of primary lung transplants between 2008 and 2012.We assessed the impact of circulating human leukocyte (HLA) and noncytotoxic Donor Specific antibodies (DSA) detected before transplant on development of Chronic Lung Allograft Dysfunction (CLAD) or CLAD related death...
November 23, 2016: Transplantation
https://www.readbyqxmd.com/read/27856461/how-i-treat-bronchiolitis-obliterans-syndrome-after-hematopoietic-stem-cell-transplantation
#7
Kirsten M Williams
In past years, a diagnosis of bronchiolitis obliterans syndrome (BOS) after allogeneic hematopoietic cell transplant (HCT) conferred nearly universal mortality secondary to lack of consensus for diagnostic criteria, poorly understood disease pathogenesis, and very few studies of therapeutic or supportive care interventions. Recently, however, progress has been made in these areas: revised consensus diagnostic guidelines are now available; supportive care has improved; there is greater understanding of potential mechanisms of disease and prospective trials are being conducted...
November 16, 2016: Blood
https://www.readbyqxmd.com/read/27831809/spirometry-states-the-obvious-recognizing-bronchiolitis-obliterans-syndrome-early-after-hematopoietic-cell-transplantation
#8
Elizabeth A Belloli, Vibha N Lama
No abstract text is available yet for this article.
November 2016: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/27830023/over-expression-of-heat-shock-protein-70-protects-mice-against-lung-ischemia-reperfusion-injury-through-sirt1-ampk-enos-pathway
#9
Shumei Liu, Junping Xu, Chunfang Fang, Chunjing Shi, Xin Zhang, Bo Yu, Yantong Yin
Lung ischemia/reperfusion injury (LIRI) usually occurs during in lung transplantation and extracorporeal circulation operation and may develop into pulmonary infections, acute rejection and bronchiolitis obliterans syndrome. Recent studies have discovered the protective effect of heat shock protein 70 (HSP70) on various types of injuries. In the present study, we firstly explore the role of over-expressed HSP70 on the protection against LIRI. Lung Wet/Dry (W/D) ratio, biomarkers in the bronchoalveolar lavage fluid (BALF), lung histological changes and apoptosis markers, oxidative products and proinflammatory cytokines in the lung tissues were analyzed...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27820781/inhibition-of-t-cell-alloreactivity-by-bronchial-epithelium-is-impaired-in-lung-transplant-recipients-through-pathways-involving-tgf-%C3%AE-il-10-and-hla-g
#10
C Dupin, E Lhuillier, S Létuvé, M Pretolani, G Thabut, H Mal, E D Carosella, C Schilte, P Mordant, V Bunel, C Danel, N Rouas-Freiss, O Brugière
BACKGROUND: Bronchiolitis obliterans syndrome (BOS) after lung transplantation (LTx) results from bronchial epithelial cell (BECs) damages, thought to be orchestrated by T cells primed by antigen-presenting cell (APC) presenting allo-antigens. In this cell cross-talk, BECs are also suspected to play a pivotal immunosuppressive role in T cell alloreactivity. We studied the immunomodulating role of BECs in a human ex-vivo model of allogeneic T cell response, both in healthy subjects and LTx recipients...
November 3, 2016: Transplantation
https://www.readbyqxmd.com/read/27795995/low-levels-of-exhaled-surfactant-protein-a-associated-with-bos-after-lung-transplantation
#11
Petrea A Ericson, Ekaterina Mirgorodskaya, Oscar S Hammar, Emilia A Viklund, Ann-Charlotte R Almstrand, Per J-W Larsson, Gerdt C Riise, Anna-Carin Olin
BACKGROUND: There is no clinically available marker for early detection or monitoring of chronic rejection in the form of bronchiolitis obliterans syndrome (BOS), the main long-term complication after lung transplantation. Sampling and analysis of particles in exhaled air is a valid, noninvasive method for monitoring surfactant protein A (SP-A) and albumin in the distal airways. METHODS: We asked whether differences in composition of exhaled particles can be detected when comparing stable lung transplant recipients (LTRs) (n = 26) with LTRs who develop BOS (n = 7)...
September 2016: Transplantation Direct
https://www.readbyqxmd.com/read/27779421/parametric-response-mapping-as-an-imaging-biomarker-in-lung-transplant-recipients
#12
Elizabeth A Belloli, Irina Degtiar, Xin Wang, Gregory A Yanik, Linda J Stuckey, Stijn E Verleden, Ella A Kazerooni, Brian D Ross, Susan Murray, Craig J Galbán, Vibha N Lama
RATIONALE: The predominant cause of chronic lung allograft failure is small airway obstruction arising from bronchiolitis obliterans. However, clinical methodologies for evaluating presence and degree of small airway disease are lacking. OBJECTIVES: To determine if Parametric Response Mapping (PRM), a novel computed tomography (CT) voxel-wise methodology, can offer insight into chronic allograft failure phenotypes and provide prognostic information following spirometric decline...
October 25, 2016: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/27737799/the-role-of-recipient-derived-interleukin-17a-in-a-murine-orthotopic-lung-transplant-model-of-restrictive-chronic-lung-allograft-dysfunction
#13
Y Yamada, E Vandermeulen, T Heigl, J Somers, A Vaneylen, S E Verleden, H Bellon, S De Vleeschauwer, E K Verbeken, D E Van Raemdonck, R Vos, G M Verleden, W Jungraithmayr, B M Vanaudenaerde
The single most important cause of late mortality after lung transplantation is chronic lung allograft dysfunction (CLAD). However, the pathological development of CLAD was not as simple as previously presumed and subclassification phenotypes, bronchiolitis obliterans syndrome (BOS) and restrictive CLAD (rCLAD), have been introduced. We want to re-investigate how CLAD manifests in the murine orthotopic lung transplant model and investigate the role of interleukin 17A (IL-17A) within this model. Orthotopic LTx was performed in CB57BL/6, IL-17 WT and IL-17 KO mice...
November 2016: Transplant Immunology
https://www.readbyqxmd.com/read/27713201/-fatal-respiratory-failure-developed-during-chemotherapy-for-diffuse-large-b-cell-lymphoma-that-occurred-late-after-lung-transplantation
#14
Akihiko Kitahara, Seijiro Sato, Terumoto Koike, Masanori Tsuchida
We report here a case of fatal respiratory failure developed during chemotherapy for diffuse large B cell lymphoma that occurred late after lung transplantation. 25-year- old man underwent lung transplantation from brain death donor for respiratory failure due to interstitial pneumonia at the age of 16 years old. Two years after transplantation, his respiratory function decreased gradually. Chronic lung allograft dysfunction including bronchiolitis obliterans( BOS) and restrictive allograft syndrome was suspected and immunosuppression was enhanced...
October 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27713199/-development-of-personalized-and-targeted-preventive-therapies-for-chronic-lung-allograft-dysfunction-subtypes-a-novel-strategy
#15
Tomohito Saito, Masaaki Sato, Yohei Taniguchi, Tomohiro Murakawa, Shaf Keshavjee
Chronic lung allograft dysfunction (CLAD) is a major limitation to long-term success of lung transplantation. Restrictive allograft syndrome (RAS) is a recently discovered subtype of CLAD, showing distinct clinical, pathological and radiological features compared with the major CLAD subtype, bronchiolitis obliterans syndrome (BOS). Introduction of the novel CLAD classification system that differentiates CLAD into BOS and RAS has stimulated research activities aiming delineation of the underlying pathological mechanism in the 2 CLAD subtypes...
October 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27697049/macrolide-hybrid-compounds-drug-discovery-opportunities-in-anti-infective-and-anti-inflammatory-area
#16
Hana Čipčić Paljetak, Linda Tomašković, Mario Matijašić, Mirjana Bukvić, Andrea Fajdetić, Donatella Verbanac, Mihaela Perića
5-LOX - 5-lipoxygenase; ACT - artemisinin-based combination therapies; ADME - absorption, distribution, metabolism and excretion; BAL - broncho alveolar lavage; CABP - community acquired bacterial pneumonia; cAMP - cyclic adenosine monophosphate; CAP - community-acquired pneumonia; CF - cystic fibrosis, BOS bronchiolitis obliterans syndrome; cGMP - cyclic guanosine monophosphate; COPD - chronic obstructive pulmonary disease; COX - cyclooxygenase; DPB - diffuse panbronchiolitis; HDACs - histone deacetylases; IBD - inflammatory bowel disease; IL-1p - interleukin 1p; IL-6 - interleukin 6; MIC - minimal inhibitory concentrations; MLSB - macrolide, lincosamide, streptogramin B; NSAIDs - non-steroidal anti-inflammatory drugs; OVA - ovalbumin; PDE4 - phosphodiesterase 4; PMA - phorbol 12-myristate 13-acetate; RA - rheumatoid arthritis; RTI - respiratory tract infections; SAHA - suberoylanilide hydroxamic acid; SAR - structure-activity-relationship; Th1 - type 1 helper T-cell; TNBS - trinitrobenzene sulfonic acid; TNF-α - tumour necrosis factor α; UN - United Nations, WHO - World Health Organisation...
September 27, 2016: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/27694251/zonal-organ-allocation-system-and-its-impact-on-long-term-outcomes-after-lung-transplantation-a-propensity-score-matched-analysis%C3%A2
#17
Mohamed Zeriouh, Anton Sabashnikov, Prashant N Mohite, Bartlomiej Zych, Nikhil P Patil, Diana García-Sáez, Achim Koch, Alexander Weymann, Simona Soresi, Jens Wippermann, Thorsten Wahlers, Fabio De Robertis, Aron-Frederik Popov, André R Simon
OBJECTIVE: Zonal organ allocation system comprises organ procurement by teams within a specific geographical area of each retrieval team. Therefore, in a substantial number of cases organs are retrieved by 'foreign' teams and are sent for transplantation to the implanting centre. The aim of this study was to assess the impact of zonal organ allocation system on early- and long-term outcomes after lung transplantation (LTx). METHODS: Included were 331 consecutive patients who underwent LTx performed at Harefield Hospital between January 2007 and January 2015...
October 2, 2016: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/27664940/long-term-follow-up-of-a-randomized-controlled-trial-evaluating-a-mobile-health-intervention-for-self-management-in-lung-transplant-recipients
#18
E M Rosenberger, A J DeVito Dabbs, A F DiMartini, D P Landsittel, J M Pilewski, M A Dew
Mobile health interventions may help transplant recipients follow their complex medical regimens. Pocket Personal Assistant for Tracking Health (Pocket PATH) is one such intervention tailored for lung transplant recipients. A randomized controlled trial showed Pocket PATH's superiority to usual care for promoting the self-management behaviors of adherence, self-monitoring and communication with clinicians during posttransplant year 1. Its long-term impact was unknown. In this study, we examined associations between Pocket PATH exposure during year 1 and longer term clinical outcomes-mortality and bronchiolitis obliterans syndrome (BOS)-among 182 recipients who survived the original trial...
September 24, 2016: American Journal of Transplantation
https://www.readbyqxmd.com/read/27614085/orthotopic-tracheal-transplantation-using-human-bronchus-an-original-xenotransplant-model-of-obliterative-airway-disorder
#19
Julien Guihaire, Ryo Itagaki, Mandy Stubbendorff, Xiaoqin Hua, Tobias Deuse, Sebastian Ullrich, Elie Fadel, Peter Dorfmüller, Robert C Robbins, Hermann Reichenspurner, Udo Schumacher, Sonja Schrepfer
Bronchiolitis obliterans syndrome (BOS) is a main cause of allograft dysfunction and mortality after lung transplantation (LTx). A better understanding of BOS pathogenesis is needed to overcome this treatment-refractory complication. Orthotopic tracheal transplantation using human bronchus was performed in Brown Norway (BN) and nude (RNU) rats. Allografts were recovered in both strains at Day 7 (BN7 , n = 6; RNU7 , n = 7) or Day 28 (BN28 , n = 6; RNU28 , n = 6). Immune response of the host against the bronchial graft was assessed...
September 10, 2016: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/27569228/impaired-capacity-of-fibroblasts-to-support-airway-epithelial-progenitors-in-bronchiolitis-obliterans-syndrome
#20
Su-Bei Zhang, Xin Sun, Qi Wu, Jun-Ping Wu, Huai-Yong Chen
BACKGROUND: Bronchiolitis obliterans syndrome (BOS) often develops in transplant patients and results in injury to the respiratory and terminal airway epithelium. Owing to its rising incidence, the pathogenesis of BOS is currently an area of intensive research. Studies have shown that injury to the respiratory epithelium results in dysregulation of epithelial repair. Airway epithelial regeneration is supported by stromal cells, including fibroblasts. This study aimed to investigate whether the supportive role of lung fibroblasts is altered in BOS...
2016: Chinese Medical Journal
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