机构：[1]Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, People’s Republic of China[2]Department of Entomology and the UC Davis Cancer Center, University of California Davis, Davis CA 95616, USA[3]Department of Neurology, University of Texas Medical Branch, Galveston TX 77555, USA[4]State Key Laboratory of Trauma, Burns, and Combined Injury, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing, Sichuan 400042, People’s Republic of China
Epoxyeicosatrienoic acids (EETs), the metabolites of arachidonic acid derived from the cytochrome P450 (CYP450) epoxygenases, are mainly metabolized by soluble epoxide hydrolase (sEH) to their corresponding diols. EETs but not their diols, have anti-inflammatory properties and inhibition of sEH might provide protective effects against inflammatory fibrosis. We test the effects of a selected sEH inhibitor, 1-trifluoromethoxyphenyl-3-(1-propionylpiperidin-4-yl) urea (TPPU), on bleomycin-induced pulmonary fibrosis (PF) in mice. A mouse model of PF was established by intratracheal injection of bleomycin and TPPU was administered for 21 days after bleomycin injection. We found TPPU treatment improved the body weight loss and survival rate of bleomycin-stimulated mice. Histological examination showed that TPPU treatment alleviated bleomycin-induced inflammation and maintained the alveolar structure of the pulmonary tissues. TPPU also decreased the bleomycin-induced deposition of collagen and the expression of procollagen I mRNA in lung tissues of mice. TPPU decreased the transforming growth factor-β1 (TGF-β1), interleukin-1β (IL-1β) and IL-6 levels in the serum of bleomycin-stimulated mice. Furthermore, TPPU inhibited the proliferation and collagen synthesis of mouse fibroblasts and partially reversed TGF-β1-induced α-smooth muscle actin expression. Our results indicate that the inhibition of sEH attenuates bleomycin-induced inflammation and collagen deposition and therefore prevents bleomycin-induced PF in a mouse model.
基金：
This work was supported by the Special Funds for
Major State Basic Research Projects (2012CB518104), National Natural
Science Foundation of China (No. 81170059), Project supported by the
Specialized Research Fund for the Doctoral Program of Higher Education
of China (20130162110052) and was partially funded by the NIEHS
grant ES02710 and American Asthma Foundation #09-0269
语种：
外文
PubmedID：
中科院(CAS)分区：
出版当年[2016]版：
大类|3 区生物
小类|4 区细胞生物学
最新[2023]版：
大类|3 区生物学
小类|4 区细胞生物学
第一作者：
第一作者机构：[1]Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, People’s Republic of China
通讯作者：
推荐引用方式(GB/T 7714)：
Zhou Yong,Yang Jun,Sun Guo-Ying,et al.Soluble epoxide hydrolase inhibitor 1-trifluoromethoxyphenyl-3- (1-propionylpiperidin-4-yl) urea attenuates bleomycin-induced pulmonary fibrosis in mice.[J].Cell and tissue research.2016,363(2):399-409.doi:10.1007/s00441-015-2262-0.
