1. Inflammatory monocyte/macrophage modulation by liposome-entrapped spironolactone ameliorates acute lung injury in mice.
- Author
-
Ji, Wen-Jie, Ma, Yong-Qiang, Zhang, Xin, Zhang, Li, Zhang, Yi-Dan, Su, Cheng-Cheng, Xiang, Guo-An, Zhang, Mei-Ping, Lin, Zhi-Chun, Wei, Lu-Qing, Wang, Peizhong P, Zhang, Zhuoli, Li, Yu-Ming, and Zhou, Xin
- Subjects
Monocytes ,Macrophages ,Alveolar ,Animals ,Mice ,Inbred C57BL ,Humans ,Pulmonary Fibrosis ,Spironolactone ,Bleomycin ,Anti-Inflammatory Agents ,Liposomes ,Cell Polarity ,Particle Size ,Male ,Acute Lung Injury ,Mineralocorticoid Receptor Antagonists ,acute lung injury ,liposome ,pulmonary fibrosis ,spironolactone ,Acute Respiratory Distress Syndrome ,Lung ,Rare Diseases ,Physical Chemistry (incl. Structural) ,Medical Biotechnology ,Nanotechnology ,Nanoscience & Nanotechnology - Abstract
AimTo examine the therapeutic/preventive potential of liposome-encapsulated spironolactone (SP; Lipo-SP) for acute lung injury (ALI) and fibrosis.Materials & methodsLipo-SP was prepared by the film-ultrasonic method, and physicochemical and pharmacokinetic characterized for oral administration (10 and 20 mg/kg for SP-loaded liposome; 20 mg/kg for free SP) in a mouse model bleomycin-induced ALI.ResultsLipo-SP enhanced bioavailability of SP with significant amelioration in lung pathology. Mechanistically, SP-mediated mineralocorticoid receptor antagonism contributes to inflammatory monocyte/macrophage modulation via an inhibitory effect on Ly6C(hi) monocytosis-directed M2 polarization of alveolar macrophages. Moreover, Lipo-SP at lower dose (10 mg/kg) exhibited more improvement in body weight gain.ConclusionOur data highlight Lipo-SP as a promising approach with therapeutic/preventive potential for ALI and fibrosis.
- Published
- 2016