Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China.
College of Life Science and Technology, Jinan University, Guangzhou 510632, China.
Molecules. 2023 Nov 7;28(22):7470. doi: 10.3390/molecules28227470.
Tyrosinase is an important rate-limiting enzyme in melanin biosynthesis. To find potential tyrosinase inhibitors with anti-melanogenic activity, a series of indole-thiazolidine-2,4-dione derivatives ~ were synthesized by incorporating indole with thiazolidine-2,4-dione into one compound and assayed for their biological activities. All compounds displayed tyrosinase inhibitory activities and had the highest anti-tyrosinase inhibitory activity with an IC value of 11.2 μM. Inhibition kinetics revealed as a mixed-type tyrosinase inhibitor. Fluorescence quenching results indicated that quenched tyrosinase fluorescence in a static process. CD spectra and 3D fluorescence spectra results suggested that the binding of with tyrosinase could change the conformation and microenvironment of tyrosinase. Molecular docking also represented the binding between and tyrosinase. Moreover, could inhibit tyrosinase activity and melanogenesis both in B16F10 cells and the zebrafish model. Therefore, compound could serve as a tyrosinase inhibitor with anti-melanogenic activity.
酪氨酸酶是黑色素生物合成中的一个重要限速酶。为了寻找具有美白活性的潜在酪氨酸酶抑制剂,我们将吲哚与噻唑烷-2,4-二酮融合到一个化合物中,合成了一系列吲哚-噻唑烷-2,4-二酮衍生物,并对其生物活性进行了测定。所有化合物均显示出酪氨酸酶抑制活性,其中化合物 具有最高的抗酪氨酸酶抑制活性,IC 值为 11.2 μM。抑制动力学研究表明 为混合型酪氨酸酶抑制剂。荧光猝灭结果表明 以静态过程猝灭酪氨酸酶的荧光。CD 光谱和 3D 荧光光谱结果表明, 与酪氨酸酶的结合可以改变酪氨酸酶的构象和微环境。分子对接也表明了 与酪氨酸酶的结合。此外, 可以抑制 B16F10 细胞和斑马鱼模型中的酪氨酸酶活性和黑色素生成。因此,化合物 可以作为一种具有美白活性的酪氨酸酶抑制剂。