Sodium tanshinone IIA sulfonate protects against acute exacerbation of cigarette smoke-induced chronic obstructive pulmonary disease in mice

• DOI: 10.1016/j.intimp.2020.106261
• Publication Date: 2020-02-12T09:29:35Z
• Authors: Defu Li; Dejun Sun; Liang Yuan; Chunli Liu; Lingzhu Chen; Guihua Xu; Jiaze Shu; Ruijuan Guan; Jingyi Xu; Yuanyuan Li; Gao Yi; Hongwei Yao; Nanshan Zhong; Jian Wang; Wenju Lu
• Keywords: Male; 0301 basic medicine; 0303 health sciences; Anti-Inflammatory Agents; NF-kappa B; Phenanthrenes; Cell Line; Cigarette Smoking; 3. Good health; Mice, Inbred C57BL; Disease Models, Animal; Mice; Pulmonary Disease, Chronic Obstructive; 03 medical and health sciences; Acute Disease; Disease Progression; Animals; Humans; Lung; Drugs, Chinese Herbal; Signal Transduction

Exacerbation of chronic obstructive pulmonary disease (COPD) is characterized by acute airway inflammation and mucus hypersecretion, which is by far the most costly aspect of its management. Thus, it is essential to develop therapeutics with low side effects for CODP exacerbation. Sodium tanshinone IIA sulfonate (STS) is a water-soluble derivative of tanshinone IIA isolated as the major active component of Chinese herbal medicine Danshen. Although it possesses anti-inflammatory, anti-oxidative and anti-apoptotic properties, it remains unknown whether STS protects against COPD exacerbation. In this study, we challenged cigarette smoke (CS)-exposed mice with lipopolysaccharide (LPS), and then treated these mice with STS. We found that STS significantly ameliorated pulmonary inflammatory responses, mucus hypersecretion and lung function decline in CS-exposed mice challenged with LPS. STS treatment also significantly attenuated increased IL-6 and IL-8 releases from cigarette smoke extract (CSE)-treated human bronchial epithelial cells (16HBE) challenged with LPS. Mechanistically, STS reduced activation of ERK1/2 and NF-κB in lungs of CS-exposed mice and CSE-treated 16HBE cells challenged with LPS. Taken together, STS protects against acute exacerbation of CS-induced lung injury, which provides a promising and potential therapeutic avenue to halt acute exacerbation of COPD.