Asiatic acid inhibits pulmonary inflammation induced by cigarette smoke.
Asiatic acid (AA) is one of the major components of Titrated extract of Centella asiatica (TECA), which has been reported to possess antioxidant and anti-inflammatory activities. The purpose of this study was to investigate the protective effect of AA on pulmonary inflammation induced by cigarette smoke (CS). AA significantly attenuated the infiltration of inflammatory cells in bronchoalveolar lavage fluid (BALF) of CS exposure mice. AA also decreased ROS production and NE activity, and inhibited the release of proinflammatory cytokines in BALF. AA reduced the recruitment of inflammatory cells and MCP-1 expression in lung tissue of CS exposure mice. AA also attenuated mucus overproduction, and decreased the activation of MAPKs and NF-kB in lung tissue. Furthermore, AA increased HO-1 expression and inhibited the reduced expression of SOD3 in lung tissue. These findings indicate that AA effectively inhibits pulmonary inflammatory response, which is an important process in the development of chronic obstructive pulmonary disease (COPD) via suppression of inflammatory mediators and induction of HO-1. Therefore, we suggest that AA has the potential to treat inflammatory disease such as COPD.
['Lee|Jae-Won|JW|', 'Park|Hyun Ah|HA|', 'Kwon|Ok-Kyoung|OK|', 'Jang|Yin-Gi|YG|', 'Kim|Ju Yeong|JY|', 'Choi|Bo Kyung|BK|', 'Lee|Hee Jae|HJ|', 'Lee|Sangwoo|S|', 'Paik|Jin-Hyub|JH|', 'Oh|Sei-Ryang|SR|', 'Ahn|Kyung-Seop|KS|', 'Lee|Hyun-Jun|HJ|']
D000818:Animals D002465:Cell Movement D028041:Centella D016207:Cytokines D004365:Drugs, Chinese Herbal D051547:Heme Oxygenase-1 D006801:Humans D018836:Inflammation Mediators D008168:Lung D008297:Male D008565:Membrane Proteins D051379:Mice D008810:Mice, Inbred C57BL D009093:Mucus D009504:Neutrophils D053978:Pentacyclic Triterpenes D011014:Pneumonia D029424:Pulmonary Disease, Chronic Obstructive D017382:Reactive Oxygen Species D012907:Smoking D013482:Superoxide Dismutase
Asiatic acid Pulmonary inflammation Cigarette smoke MAPKs NF-kB HO-1