Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/20224
Title: A intervenção da célula epitelial na asma
Other Titles: The role of the epithelial cell in asthma
Authors: Mota-Pinto, Anabela 
Todo-Bom, Ana 
Keywords: Asma; Célula epitelial
Issue Date: 2009
Serial title, monograph or event: Revista Portuguesa de Pneumologia
Volume: 15
Issue: 3
Abstract: Faz -se uma revisão da intervenção da célula epitelial brônquica na fisiopatologia da asma. O epitélio que reveste as vias respiratórias actua como uma barreira física, separando o meio externo do meio interno pulmonar, controla a permeabilidade intercelular e transcelular, e, deste modo, a acessibilidade dos agressores inalantes às células apresentadoras de antigénio envolvidas na resposta imunoinflamatória. As células epiteliais unidas por tight junctions contribuem para a integridade das vias aéreas e expressam poliovirus receptor–related protein (PRR), toll like receptors (TLR) e protease -activated receptors (PAR), que reconhecem agentes bacterianos e alergénios. A sua disfunção transforma-as em fonte de mediadores intervenientes na inflamação. Abstract It is done a review of the intervention of the epithelial bronchial cell in the pathophysiology of asthma. The respiratory epithelium acts as a physical barrier that separates the external environment from the pulmonary internal environment. It controls the intercellular and trans -cellular permeability and this way the accessibility of the inhaled pathogens to the antigen presenting cells involved in the immuno-inflammatory response. Epithelial cells connected by tight junctions contribute to the barrier function of the airways. They express a poliovirus receiver – related protein (PRR), toll like receptors (TLRs) and protease-activated receptors (PARs), which recognize bacterial agents and allergens. Its dysfunction turns them into important sources of inflammatory mediators.
URI: https://hdl.handle.net/10316/20224
DOI: 10.1016/s2173-5115(09)70124-1
Rights: openAccess
Appears in Collections:FMUC Medicina - Artigos em Revistas Nacionais

Files in This Item:
Show full item record

Page view(s) 50

378
checked on Apr 23, 2024

Download(s)

288
checked on Apr 23, 2024

Google ScholarTM

Check

Altmetric

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.