AI Article Synopsis
Article Abstract
Background: The pathogenesis of obliterative bronchiolitis after lung transplantation requires further elucidation. In this study we used rat trachea transplantation to examine the role of epithelium in the progression of obliterative airway disease.
Methods: Normal and denuded (i.e., epithelium removed) trachea grafts from Lewis (LEW) and Brown Norway (BN) rats were transplanted sub-cutaneously into LEW rats. Viable trachea epithelial cells (to recover epithelium) were seeded into the lumen of some of the denuded tracheas. Grafts were removed at different time-points between 2 days and 8 weeks after transplantation. Histologic analysis was performed to evaluate cellular infiltration of inflammatory cells, loss of epithelium, and obliteration of trachea lumen.
Results: Obliteration was found to occur in trachea transplants after loss of epithelium, caused by rejection in allografts or by enzymatic denudation in isografts. In these situations, fibroblasts started to proliferate and migrate into the lumen in the second week after transplantation. Obliteration could be prevented when epithelial integrity was restored by seeding epithelial cells; no obliteration occurred when denuded trachea isografts were seeded with epithelial cells, whereas non-seeded denuded tracheas were obliterated at Day 6 after transplantation.
Conclusions: We conclude that integrity of airway epithelium is essential for rat trachea transplants to be safeguarded from obliterative airway disease. For clinical lung transplantation the results of our study suggest that protection of the integrity of airway epithelium may be important in preventing the development of obliterative bronchiolitis.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.healun.2004.04.020 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Local Anesthetic Infiltration, Awake Veno-Venous Extracorporeal Membrane Oxygenation, and Airway Management for Resection of a Giant Mediastinal Cyst: A Narrative Review and Case Report.
J Clin Med
December 2024
Anesthesiology and Operative Intensive Care, Faculty of Medicine, University of Augsburg, 86156 Augsburg, Germany.
Mediastinal mass syndrome represents a major threat to respiratory and cardiovascular integrity, with difficult evidence-based risk stratification for interdisciplinary management. We conducted a narrative review concerning risk stratification and difficult airway management of patients presenting with a large mediastinal mass. This is supplemented by a case report illustrating our individual approach for a patient presenting with a subtotal tracheal stenosis due to a large cyst of the thyroid gland.
View Article and Find Full Text PDFBLOC1S1 Control of Vacuolar Organelle Fidelity Modulates Murine T2 Cell Immunity and Allergy Susceptibility.
Allergy
December 2024
Laboratory of Mitochondrial Biology and Metabolism, NHLBI, NIH, Bethesda, Maryland, USA.
Background: The levels of biogenesis of lysosome organelles complex 1 subunit 1 (BLOC1S1) control mitochondrial and endolysosome organelle homeostasis and function. Reduced fidelity of these vacuolar organelles is increasingly being recognized as important in instigating cell-autonomous immune cell activation. We reasoned that exploring the role of BLOC1S1 in CD4 T cells may further advance our understanding of regulatory events linked to mitochondrial and/or endolysosomal function in adaptive immunity.
View Article and Find Full Text PDFRevolutionizing Epithelial Differentiability Analysis in Small Airway-on-a-Chip Models Using Label-Free Imaging and Computational Techniques.
Biosensors (Basel)
November 2024
Institute of Biomedical Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu 300093, Taiwan.
Organ-on-a-chip (OOC) devices mimic human organs, which can be used for many different applications, including drug development, environmental toxicology, disease models, and physiological assessment. Image data acquisition and analysis from these chips are crucial for advancing research in the field. In this study, we propose a label-free morphology imaging platform compatible with the small airway-on-a-chip system.
View Article and Find Full Text PDFextract attenuates combined allergic rhinitis and asthma syndrome by the modulation of epithelial cell dysfunction and oxidative stress.
Acta Biochim Biophys Sin (Shanghai)
December 2024
Department of Anatomy, Jeonbuk National University Medical School, Jeonju 54896, Republic of Korea.
( . ) has long been a part of the human diet and medicine. Although .
View Article and Find Full Text PDFLymphatic plastic bronchitis: a study based on CT and MR lymphangiography.
BMC Med Imaging
December 2024
Department of Radiology, Beijing Shijitan Hospital, Capital Medical University, Yangfangdian Tieyiyuan Road No.10, Haidian District, Beijing, 100038, China.
Objectives: To investigate the diagnostic value of CT lymphangiography (CTL) and non-contrast MR lymphangiography (MRL) in lymphatic plastic bronchitis.
Materials And Methods: The clinical and imaging data of 31 patients with lymphatic plastic bronchitis diagnosed by clinical, imaging and pathological results were retrospectively analyzed. All patients underwent CTL and MRL.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!