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Targeting Airway Smooth Muscle Hypertrophy in Asthma: An Approach Whose Time Has Come

期刊

JOURNAL OF ASTHMA AND ALLERGY
卷 14, 期 -, 页码 539-556

出版社

DOVE MEDICAL PRESS LTD
DOI: 10.2147/JAA.S280247

关键词

airway smooth muscle cells; hypertrophy; proliferation; airway remodeling

资金

  1. Peabody Foundation
  2. Boston MA, USA

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ASM cell dysfunction is a key factor in obstructive pulmonary diseases, particularly asthma, leading to uncontrollable clinical phenotypes. External stimuli and soluble mediators can induce ASM cell phenotype transition. Interventions targeting ASM hypertrophy are being explored to reduce muscle mass and improve asthma symptoms.
Airway smooth muscle (ASM) cell dysfunction is an important component of several obstructive pulmonary diseases, particularly asthma. External stimuli such as allergens, dust, air pollutants, and change in environmental temperatures provoke ASM cell hypertrophy, proliferation, and migration without adequate mechanistic controls. ASM cells can switch between quiescent, migratory, and proliferative phenotypes in response to extracellular matrix proteins, growth factors, and other soluble mediators. While some aspects of airway hypertrophy and remodeling could have beneficial effects, in many cases these contribute to a clinical phenotype of difficult to control asthma. In this review, we discuss the factors responsible for ASM hypertrophy and proliferation in asthma, focusing on cytokines, growth factors, and ion transporters, and discuss existing and potential approaches that specifically target ASM hypertrophy to reduce the ASM mass and improve asthma symptoms. The goal of this review is to highlight strategies that appear ready for translational investigations to improve asthma therapy.

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