Peter Jaksch1, Shahrokh Taghavi1, Walter Klepetko1, Mohamed Salama2. 1. Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria. 2. Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria; Department of Thoracic Surgery, Otto Wagner Hospital, Vienna, Austria. Electronic address: mohamed.salama@meduniwien.ac.at.
Abstract
OBJECTIVE: Bronchiolitis obliterans syndrome (BOS) is the main long-term complication limiting survival after lung transplantation. There exists no cure for BOS and its mechanisms are not well understood. Early identification of BOS could therefore contribute to improvement of therapeutic and preventive measures. The human chitinase-like glycoprotein YKL-40 is involved in regulation of inflammatory tissue response and remodeling and is associated with pulmonary fibrosis. However, its role in BOS is unknown. METHODS: A total of 57 recipients with irreversible fibrotic BOS and matched 85 recipients without BOS were retrospectively analyzed. Pretransplant serum samples were available at the time of the study. Serum and bronchoalveolar lavage samples were obtained at BOS diagnosis or at a comparable time point in patients without BOS. Additionally, serum samples were obtained 3 months later after BOS diagnosis or after the first sample in patients without BOS. YKL-40 concentrations were analyzed by enzyme-linked immunosorbent assay. RESULTS: Pretransplant serum YKL-40 concentrations were higher in recipients who developed BOS and were useful in identifying patients at high risk for BOS development (odds ratio, 1.3; 95% confidence interval, 1.01-1.9; P = .02). At BOS diagnosis, posttransplant YKL-40 concentrations were significantly elevated in the serum and bronchoalveolar lavage of patients with BOS compared with those without BOS at a comparable posttransplant time point. Of note, there was no significant association between serum YKL-40 concentrations and the frequency of acute rejection episodes. CONCLUSIONS: Elevated pretransplant serum YKL-40 concentration is associated with BOS development and could be an independent biomarker in early prediction and monitoring of BOS.
OBJECTIVE:Bronchiolitis obliterans syndrome (BOS) is the main long-term complication limiting survival after lung transplantation. There exists no cure for BOS and its mechanisms are not well understood. Early identification of BOS could therefore contribute to improvement of therapeutic and preventive measures. The human chitinase-like glycoprotein YKL-40 is involved in regulation of inflammatory tissue response and remodeling and is associated with pulmonary fibrosis. However, its role in BOS is unknown. METHODS: A total of 57 recipients with irreversible fibrotic BOS and matched 85 recipients without BOS were retrospectively analyzed. Pretransplant serum samples were available at the time of the study. Serum and bronchoalveolar lavage samples were obtained at BOS diagnosis or at a comparable time point in patients without BOS. Additionally, serum samples were obtained 3 months later after BOS diagnosis or after the first sample in patients without BOS. YKL-40 concentrations were analyzed by enzyme-linked immunosorbent assay. RESULTS: Pretransplant serum YKL-40 concentrations were higher in recipients who developed BOS and were useful in identifying patients at high risk for BOS development (odds ratio, 1.3; 95% confidence interval, 1.01-1.9; P = .02). At BOS diagnosis, posttransplant YKL-40 concentrations were significantly elevated in the serum and bronchoalveolar lavage of patients with BOS compared with those without BOS at a comparable posttransplant time point. Of note, there was no significant association between serum YKL-40 concentrations and the frequency of acute rejection episodes. CONCLUSIONS: Elevated pretransplant serum YKL-40 concentration is associated with BOS development and could be an independent biomarker in early prediction and monitoring of BOS.
Authors: Craig J Galbán; Jennifer L Boes; Maria Bule; Carrie L Kitko; Daniel R Couriel; Timothy D Johnson; Vihba Lama; Eef D Telenga; Maarten van den Berge; Alnawaz Rehemtulla; Ella A Kazerooni; Michael J Ponkowski; Brian D Ross; Gregory A Yanik Journal: Biol Blood Marrow Transplant Date: 2014-06-18 Impact factor: 5.742
Authors: Angela Koutsokera; Pierre J Royer; Jean P Antonietti; Andreas Fritz; Christian Benden; John D Aubert; Adrien Tissot; Karine Botturi; Antoine Roux; Martine L Reynaud-Gaubert; Romain Kessler; Claire Dromer; Sacha Mussot; Hervé Mal; Jean-François Mornex; Romain Guillemain; Christiane Knoop; Marcel Dahan; Paola M Soccal; Johanna Claustre; Edouard Sage; Carine Gomez; Antoine Magnan; Christophe Pison; Laurent P Nicod Journal: Front Med (Lausanne) Date: 2017-07-17
Authors: Yoshihiro Inamoto; Paul J Martin; Lynn E Onstad; Guang-Shing Cheng; Kirsten M Williams; Iskra Pusic; Vincent T Ho; Mukta Arora; Joseph Pidala; Mary E D Flowers; Ted A Gooley; Richard L Lawler; John A Hansen; Stephanie J Lee Journal: Transplant Cell Ther Date: 2021-06-12
Authors: Ines Mack; Andreas Hector; Marlene Ballbach; Julius Kohlhäufl; Katharina J Fuchs; Alexander Weber; Marcus A Mall; Dominik Hartl Journal: Mol Cell Pediatr Date: 2015-02-27