UCL  IRIS
Institutional Research Information Service
UCL Logo
Please report any queries concerning the funding data grouped in the sections named "Externally Awarded" or "Internally Disbursed" (shown on the profile page) to your Research Finance Administrator. Your can find your Research Finance Administrator at https://www.ucl.ac.uk/finance/research/rs-contacts.php by entering your department
Please report any queries concerning the student data shown on the profile page to:

Email: portico-services@ucl.ac.uk

Help Desk: http://www.ucl.ac.uk/ras/portico/helpdesk
Publication Detail
Bioengineered airway epithelial grafts with mucociliary function based on collagen IV- and laminin-containing extracellular matrix scaffolds.
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Article
  • Authors:
    Hamilton NJI, Lee DDH, Gowers KHC, Butler CR, Maughan EF, Jevans B, Orr JC, McCann CJ, Burns AJ, MacNeil S, Birchall MA, O'Callaghan C, Hynds RE, Janes SM
  • Publication date:
    22/05/2020
  • Journal:
    Eur Respir J
  • Status:
    Published
  • Country:
    England
  • PII:
    13993003.01200-2019
  • Language:
    eng
Abstract
Current methods to replace damaged upper airway epithelium with exogenous cells are limited. Existing strategies use grafts that lack mucociliary function, leading to infection and the retention of secretions and keratin debris. Strategies that regenerate airway epithelium with mucociliary function are clearly desirable and would enable new treatments for complex airway disease. Here, we investigated the influence of the extracellular matrix on airway epithelial cell adherence, proliferation and mucociliary function in the context of bioengineered mucosal grafts. In vitro, primary human airway epithelial cells adhere most readily to collagen IV. Biological, biomimetic and synthetic scaffolds were compared in terms of their extracellular matrix protein content and airway epithelial cell adherence. Collagen IV and laminin were preserved on the surface of decellularised dermis and epithelial cell attachment to decellularised dermis was greater than to the biomimetic or synthetic alternatives tested. Blocking epithelial integrin α2 led to decreased adherence to collagen IV and to decellularised dermis scaffolds. At air-liquid interface, bronchial epithelial cells cultured on decellularised dermis scaffolds formed a differentiated respiratory mucosal layer with mucociliary function. Using in vivo chick chorioallantoic membrane and rabbit airway models, we showed short-term preservation of the differentiated cell layer following transplantation. Our results demonstrate the feasibility of generating human airway epithelial cell grafts on clinically applicable decellularised dermis scaffolds and identify matrix proteins and integrins important for this process. The long-term survivability of pre-differentiated epithelia and the relative merits of this approach against transplanting basal cells should be assessed further in pre-clinical airway transplantation models.
Publication data is maintained in RPS. Visit https://rps.ucl.ac.uk
 More search options
UCL Researchers Show More
Author
The Ear Institute
Author
UCL GOS Institute of Child Health
Author
Respiratory Medicine
Author
Department of Targeted Intervention
Author
Research Department of Oncology
Author
Respiratory Medicine
Author
Developmental Biology & Cancer Dept
Author
UCL GOS Institute of Child Health
Author
The Ear Institute
Author
Developmental Biology & Cancer Dept
Author
Infection, Immunity & Inflammation Dept
Author
Div of Medicine
University College London - Gower Street - London - WC1E 6BT Tel:+44 (0)20 7679 2000

© UCL 1999–2011

Search by