Dipartimento Farmacia-Scienze del Farmaco, Università degli Studi di Bari "Aldo Moro", via Orabona 4, 70125 Bari, Italy.
Dipartimento di Farmacia, "Drug Discovery" Laboratory, Università degli Studi di Napoli "Federico II", via D. Montesano 49, 80131 Napoli, Italy.
J Med Chem. 2023 Mar 9;66(5):3566-3587. doi: 10.1021/acs.jmedchem.2c02093. Epub 2023 Feb 15.
A new series of analogues or derivatives of the previously reported PPARα/γ dual agonist LT175 allowed the identification of ligand , which was able to potently activate both PPARα and -γ subtypes as full and partial agonists, respectively. Docking studies were performed to provide a molecular explanation for this different behavior on the two different targets. In vivo experiments showed that this compound induced a significant reduction in blood glucose and lipid levels in an STZ-induced diabetic mouse model displaying no toxic effects on bone, kidney, and liver. By examining in depth the antihyperglycemic activity of , we found out that it produced a slight but significant inhibition of the mitochondrial pyruvate carrier, acting also through insulin-independent mechanisms. This is the first example of a PPARα/γ dual agonist reported to show this inhibitory effect representing, therefore, the potential lead of a new class of drugs for treatment of dyslipidemic type 2 diabetes.
先前报道的过氧化物酶体增殖物激活受体α/γ双重激动剂 LT175 的一系列新类似物或衍生物,确定了一种配体,它能够分别作为完全激动剂和部分激动剂强烈激活 PPARα 和 -γ 亚型。进行了对接研究,为这两种不同靶点上的不同行为提供了分子解释。体内实验表明,该化合物在链脲佐菌素诱导的糖尿病小鼠模型中显著降低血糖和血脂水平,对骨骼、肾脏和肝脏无毒性作用。通过深入研究,我们发现它对线粒体丙酮酸载体有轻微但显著的抑制作用,也通过胰岛素非依赖性机制起作用。这是报告的第一个具有这种抑制作用的 PPARα/γ 双重激动剂的例子,因此,它代表了治疗脂代谢紊乱 2 型糖尿病的一类新药的潜在先导化合物。