College of Pharmacy, Pusan National University, Busan 46241, Korea.
College of Pharmacy and Inje Institute of Pharmaceutical Sciences and Research, Inje University, Gimhae, Gyeongnam 50834, Korea.
Molecules. 2020 Nov 21;25(22):5460. doi: 10.3390/molecules25225460.
A series of ()-1-(furan-2-yl)prop-2-en-1-one derivatives (compounds -) were synthesized and evaluated for their mushroom tyrosinase inhibitory activity. Among these series, compound (2,4-dihydroxy group bearing benzylidene) showed potent tyrosinase inhibitory activity, with respective IC values of 0.0433 µM and 0.28 µM for the monophenolase and diphenolase as substrates in comparison to kojic acid as standard compound 19.97 µM and 33.47 µM. Moreover, the enzyme kinetics of compound were determined to be of the mixed inhibition type and inhibition constant () values of 0.012 µM and 0.165 µM using the Lineweaver-Burk plot. Molecular docking results indicated that compound can bind to the catalytic and allosteric sites 1 and 2 of tyrosinase to inhibit enzyme activity. The computational molecular dynamics analysis further revealed that compound interacted with two residues in the tyrosinase active site pocket, such as ASN260 and MET280. In addition, compound attenuated melanin synthesis and cellular tyrosinase activity, simulated by α-melanocyte-stimulating hormone and 1-methyl-3-isobutylxanthine. Compound also decreased tyrosinase expressions in B16F10 cells. Based on in vitro and computational studies, we propose that compound might be a worthy candidate for the development of an antipigmentation agent.
一系列()-1-(呋喃-2-基)-2-丙烯-1-酮衍生物(化合物 -)被合成并评估其对蘑菇酪氨酸酶抑制活性。在这些系列中,化合物(带有 2,4-二羟基的苯亚甲基)表现出强烈的酪氨酸酶抑制活性,作为单酚酶和二酚酶的底物时,其各自的 IC 值分别为 0.0433 µM 和 0.28 µM,而作为标准化合物的曲酸的 IC 值分别为 19.97 µM 和 33.47 µM。此外,通过 Lineweaver-Burk 图确定了化合物的酶动力学为混合抑制类型,抑制常数()值分别为 0.012 µM 和 0.165 µM。分子对接结果表明,化合物可以与酪氨酸酶的催化和别构部位 1 和 2 结合以抑制酶活性。计算分子动力学分析进一步表明,化合物与酪氨酸酶活性位点口袋中的两个残基相互作用,如 ASN260 和 MET280。此外,化合物还减弱了 α-黑色素细胞刺激激素和 1-甲基-3-异丁基黄嘌呤模拟的黑色素合成和细胞酪氨酸酶活性。化合物还降低了 B16F10 细胞中的酪氨酸酶表达。基于体外和计算研究,我们提出化合物可能是开发抗色素沉着剂的有价值的候选物。