Gowdru Srinivasa Mahendra, B C Revanasiddappa, Prabhu Ashwini, Rani Vinitha, Ghate Sudeep D, Kumar B R Prashantha
Department of Pharmaceutical Chemistry, Nitte (Deemed to be University), NGSM Institute of Pharmaceutical Sciences (NGSMIPS) Mangalore India
Yenepoya Research Centre, Yenepoya (Deemed to be University) Deralakatte Mangalore 575 018 Karnataka India.
RSC Med Chem. 2023 Oct 18;14(11):2401-2416. doi: 10.1039/d3md00273j. eCollection 2023 Nov 15.
The present study was conducted to develop new novel 2,4-thiazolidinedione derivatives (3h-3j) as peroxisome proliferator-activated receptor-γ (PPAR-γ) modulators for antidiabetic activity. The objective was to overcome the adverse effects of existing thiazolidinediones while maintaining their pharmacological benefits. The synthesized compounds were elucidated based on FT-IR, H-NMR, C-NMR, and MS techniques. Molecular docking was utilized to investigate the interaction binding modes, binding free energy, and amino acids engaged in the compounds' interactions with the target protein. Subsequently, molecular dynamics modelling was used to assess the stability of the top-docked complexes and an assay was utilized to assess the cytotoxicity of the compounds to C2C12 myoblasts. Compounds 3h-3j exhibited PPAR-γ modulatory activity and demonstrated significant hypoglycaemic effects when compared to the reference drug pioglitazone. The new compounds were evaluated for their blood glucose-lowering potential by using a dexamethasone-induced diabetic rat model. All the compounds showed a hypoglycaemic effect of 108.04 ± 4.39, 112.55 ± 6.10, and 117.48 ± 43.93, respectively, along with pioglitazone (153.93 ± 4.61) compared to the diabetic control. Additionally, all the compounds significantly reduced AST and ALT levels and did not cause liver damage.
本研究旨在开发新型的2,4-噻唑烷二酮衍生物(3h - 3j)作为过氧化物酶体增殖物激活受体-γ(PPAR-γ)调节剂,用于抗糖尿病活性。目的是在保持现有噻唑烷二酮类药物药理益处的同时,克服其不良反应。通过傅里叶变换红外光谱(FT-IR)、氢核磁共振(H-NMR)、碳核磁共振(C-NMR)和质谱(MS)技术对合成的化合物进行了表征。利用分子对接研究化合物与靶蛋白相互作用的结合模式、结合自由能以及参与相互作用的氨基酸。随后,使用分子动力学建模评估对接得分最高的复合物的稳定性,并通过实验评估化合物对C2C12成肌细胞的细胞毒性。与参考药物吡格列酮相比,化合物3h - 3j表现出PPAR-γ调节活性,并显示出显著的降血糖作用。通过地塞米松诱导的糖尿病大鼠模型评估了新化合物的降血糖潜力。与糖尿病对照组相比,所有化合物分别显示出108.04±4.39、112.55±6.10和117.48±43.93的降血糖效果,吡格列酮的降血糖效果为153.93±4.61。此外,所有化合物均显著降低了天冬氨酸转氨酶(AST)和丙氨酸转氨酶(ALT)水平,且未造成肝损伤。