The high-affinity IgE receptor (FcεRI): a critical regulator of airway smooth muscle cells?

Autor: Abdelilah Soussi Gounni, Abdelilah Gounni
Rok vydání: 2006
Předmět:
Zdroj: American Journal of Physiology-Lung Cellular and Molecular Physiology. 291:L312-L321
ISSN: 1522-1504
1040-0605
DOI: 10.1152/ajplung.00005.2006
Popis: The airway smooth muscle (ASM) has been typically described as a contractile tissue, responding to neurotransmitters and inflammatory mediators. However, it has recently been recognized that ASM cells can also secrete cytokines and chemokines and express cell adhesion molecules that are important for the perpetuation and modulation of airway inflammation. Recent progress has revealed the importance of IgE Fc receptors in stimulating and modulating the function of these cells. In particular, the high-affinity receptor for IgE (FcεRI) has been identified in primary human ASM cells in vitro and in vivo within bronchial biopsies of atopic asthmatic individuals. Moreover, activation of this receptor has been found to induce marked increases in the intracellular calcium concentrations and T helper 2 cytokines and chemokines release. This and other evidence discussed in this review provide an emerging view of FcεR/IgE network as a critical modulator of ASM cell function in allergic asthma.
Databáze: OpenAIRE