Chrysin inhibits human airway smooth muscle cells proliferation through the extracellular signal‑regulated kinase 1/2 signaling pathway

Yao,Jing; Zhang,Yun‑Shi; Feng,Gan‑Zhu; Du,Qiang

doi:10.3892/mmr.2015.4401

Chrysin inhibits human airway smooth muscle cells proliferation through the extracellular signal‑regulated kinase 1/2 signaling pathway

Authors:
- Jing Yao
- Yun‑Shi Zhang
- Gan‑Zhu Feng
- Qiang Du
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Affiliations: Department of Respiratory Medicine, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210011, P.R. China
Published online on: September 30, 2015 https://doi.org/10.3892/mmr.2015.4401
Pages: 7693-7698

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Abstract

Asthma is a chronic airway inflammatory disease characterized by an increased mass of airway smooth muscle (ASM). Chrysin (5,7‑dihydroxyflavone), a natural flavonoid, has been shown to exert multiple biological activities, including anti‑inflammatory, anti‑proliferative and anti‑oxidant effects, as well as the potency to ameliorate asthma in animal models. The objective of the present study was to identify the underlying mechanism of the therapeutic effects of chrysin. The impact of chrysin on basal and platelet‑derived growth factor (PDGF)‑induced proliferation and apoptosis of human airway smooth muscle cells (HASMCs) was investigated. Furthermore, the activation of the extracellular signal-regulated protein kinase (ERK) signaling pathway was evaluated in HASMCs. The results revealed that chrysin significantly inhibited basal as well as PDGF‑induced HASMC proliferation, most likely through the suppression of ERK1/2 phosphorylation. However, chrysin did not significantly reduce PDGF‑induced apoptosis of HASMCs. The present study indicated that chrysin may be a promising medication for controlling airway remodeling and clinical manifestations of asthma.

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