The Transmembrane Protein 16A Ca2+-activated Cl−Channel in Airway Smooth Muscle Contributes to Airway Hyperresponsiveness
نویسندگان
چکیده
منابع مشابه
The smooth muscle and airway hyperresponsiveness.
Airway hyperresponsiveness, excessive airway narrowing caused by stimuli that normally elicit limited or no response, is one of the cardinal features of asthma. The length-dependence of smooth muscle contractility has been recognized for decades, and it forms an essential foundation for many aspects of the physiological regulation of airway contractility in vivo. This review summarizes the stru...
متن کاملThe contribution of airway smooth muscle to airway narrowing and airway hyperresponsiveness in disease.
Airway hyperresponsiveness (AHR), the exaggerated response to constrictor agonists in asthmatic subjects, is incompletely understood. Changes in either the quantity or properties of airway smooth muscle (ASM) are possible explanations for AHR. Morphometric analyses demonstrate structural changes in asthmatic airways, including subepithelial fibrosis, gland hyperplasia/hypertrophy, neovasculariz...
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Airway hyperresponsiveness and obstruction are cardinal features of asthma. Compelling evidence now suggests that the key features of asthma in part are due to intrinsic differences in airway smooth muscle (ASM) function. Inflammatory mediators alter ASM phenotype, which directly modulates ASM hyperresponsiveness and promotes airway remodeling that further contributes to amplified airway obstru...
متن کاملCa2+ oscillations, Ca2+ sensitization, and contraction activated by protein kinase C in small airway smooth muscle
Protein kinase C (PKC) has been implicated in the regulation of smooth muscle cell (SMC) contraction and may contribute to airway hyperresponsiveness. Here, we combined optical and biochemical analyses of mouse lung slices to determine the effects of PKC activation on Ca(2+) signaling, Ca(2+) sensitivity, protein phosphorylation, and contraction in SMCs of small intrapulmonary airways. We found...
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The important pathophysiological features of the airways in asthma include exaggerated narrowing to bronchoconstrictor agonists and attenuated relaxation to beta adrenoceptor stimulation. These physiological perturbations are associated with inflammation and remodelling of the airways, the latter including an increase in airway smooth muscle cell mass, disruption of the airway epithelium, and c...
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ژورنال
عنوان ژورنال: American Journal of Respiratory and Critical Care Medicine
سال: 2013
ISSN: 1073-449X,1535-4970
DOI: 10.1164/rccm.201207-1303oc