Syndrome after Lung Transplantation Chemoattractant in Bronchiolitis Obliterans The Presence of a Matrix-Derived Neutrophil
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Matrix metalloproteinase-9 in bronchiolitis obliterans syndrome after lung transplantation.
Bronchiolitis obliterans syndrome (BOS) is a severe complication after lung transplantation (LTX). In a retrospective cohort study 12 stable healthy recipients (non-BOS) and eight patients with BOS were enrolled after LTX and matrix metalloproteinases (MMP)-9, TIMP-1 and cell characteristics in bronchoalveolar lavage (BAL) samples (n = 145) were analysed. BALs from patients with BOS were furthe...
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Mechanisms other than classical alloimmunity are implicated in the pathogenesis of bronchiolitis obliterans syndrome (BOS). It was hypothesised that antimicrobial peptides (AMPs), elements of the innate immune response, have a role in BOS pathogenesis. Pulmonary expression of the neutrophil-derived AMPs human cathelicidin (hCAP)-18/LL-37 and alpha-defensins (human neutrophil peptides (HNP) 1-3)...
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Angiogenesis and vascular remodeling support fibroproliferative processes; however, no study has addressed the importance of angiogenesis during fibro-obliteration of the allograft airway during bronchiolitis obliterans syndrome (BOS) that occurs after lung transplantation. The ELR(+) CXC chemokines both mediate neutrophil recruitment and promote angiogenesis. Their shared endothelial cell rece...
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OBJECTIVES Bronchiolitis obliterans is the greatest limitation to the long-term applicability of lung transplantation. Although alloimmune events are important, nonimmune events, such as gastroesophageal reflux, might contribute to lung injury and the development of bronchiolitis obliterans syndrome. METHODS We retrospectively studied the 396 patients who underwent lung transplantation at the...
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A lthough lung transplantation is now accepted as an established therapy for selected patients with end-stage lung disease, long-term survival after lung transplantation remains limited by the development of bronchiolitis obliterans syndrome (BOS) in .50% of recipients [1]. BOS is the clinical manifestation of an inflammatory bronchiolitis associated with fibrotic remodelling of the small and m...
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