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Impaired differenti...
Impaired differentiation of chronic obstructive pulmonary disease bronchial epithelial cells grown on bronchial scaffolds
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- Hedström, Ulf (author)
- AstraZeneca, Sweden
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- Öberg, Lisa (author)
- AstraZeneca, Sweden
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- Vaarala, Outi (author)
- AstraZeneca, Sweden
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- Dellgren, Göran (author)
- Sahlgrenska University Hospital
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- Silverborn, Martin (author)
- Sahlgrenska University Hospital
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- Bjermer, Leif (author)
- Lund University,Lunds universitet,Lungmedicin, allergologi och palliativ medicin,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Klinisk lungmedicin,Forskargrupper vid Lunds universitet,Respiratory Medicine, Allergology, and Palliative Medicine,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine,Clinical Respiratory Medicine,Lund University Research Groups
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- Westergren-Thorsson, Gunilla (author)
- Lund University,Lunds universitet,Lungbiologi,Forskargrupper vid Lunds universitet,Lung Biology,Lund University Research Groups
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- Hallgren, Oskar (author)
- Lund University,Lunds universitet,Thoraxkirurgi,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Thoracic Surgery,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Zhou, Xiaohong (author)
- AstraZeneca, Sweden
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(creator_code:org_t)
- 2021
- 2021
- English 13 s.
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In: American Journal of Respiratory Cell and Molecular Biology. - 1044-1549. ; 65:2, s. 201-213
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Abstract
Subject headings
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- Chronic obstructive pulmonary disease (COPD) is characterized by airway inflammation, small airway remodeling, and emphysema. Airway remodeling in patients with COPD involves both the airway epithelium and the subepithelial extracellular matrix (ECM). However, it is currently unknown how epithelial remodeling in COPD airways depends on the relative influence from inherent defects in the epithelial cells and alterations in the ECM. To address this, we analyzed global gene expression in COPD human bronchial epithelial cells (HBEC) and normal HBEC after repopulation on decellularized bronchial scaffolds derived from patients with COPD or donors without COPD. COPD HBEC grown on bronchial scaffolds showed an impaired ability to initiate ciliated-cell differentiation, which was evident on all scaffolds regardless of their origin. In addition, although normal HBEC were less affected by the disease state of the bronchial scaffolds, COPD HBEC showed a gene expression pattern indicating increased proliferation and a retained basal-cell phenotype when grown on COPD bronchial scaffolds compared with normal bronchial scaffolds. By using mass spectrometry, we identified 13 matrisome proteins as being differentially abundant between COPD bronchial scaffolds and normal bronchial scaffolds. These observations are consistent with COPD pathology and suggest that both epithelial cells and the ECM contribute to epithelial-cell remodeling in COPD airways.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Lungmedicin och allergi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Respiratory Medicine and Allergy (hsv//eng)
Keyword
- Airway
- Chronic obstructive pulmonary disease
- Epithelium
- Extracellular matrix
- Remodeling
Publication and Content Type
- art (subject category)
- ref (subject category)
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