Animal experiment:

Rats[1]Sprague Dawley rats are orally administered with 0.25 μL/g Carbon tetrachloride (CCl4) in olive oil solution, starting from day 0, 3 times per week for 6 weeks. PXS-5153A is given by oral gavage after 3 weeks of CCl4 administration and continued throughout the remainder of the study at 3 mg/kg (low dose) or 10 mg/kg (high dose) once a day or 10 mg/kg (high dose) three times a week. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels were assessed in the plasma.MiceNASH is established in male C57/BL6 mice by a single subcutaneous injection of 200 μg streptozotocin after birth and with a high fat diet ad libitum after 4 weeks of age (day 28 ± 2) until 14 weeks of age. Mice are orally administered with 10 mg/kg PXS-5153A once daily from 8 to 14 weeks of age. ALT levels are assessed in the plasma. MiceMyocardial infarction (MI) is induced in C57/BL6 mice by occluding the left coronary artery. At 24 hours post-surgery, animals receive echocardiography. Infarcted mice with high cardiac function (FS >40%) or low cardiac function (FS<10%) are excluded from the study. The remaining mice are treated q.d., p.o., with 25 mg/kg of PXS-5153A for 4 weeks. At the end of the experiment, echocardiography is performed on mice to assess left ventricular function and remodelling, followed by heart collection. The heart is fixed with 10% formalin. Fibrosis is assessed in the non-infarct area[1].

参考文献:

[1]. Schilter H, et al. The lysyl oxidase like 2/3 enzymatic inhibitor, PXS-5153A, reduces crosslinks and ameliorates fibrosis. J Cell Mol Med. 2018 Dec 9.