Lee JungIn, Lee Wonhwa, Kim Mi-Ae, Hwang Jae Sam, Na MinKyun, Bae Jong-Sup
College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea.
College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team, Kyungpook National University, Daegu, Republic of Korea.
J Cell Mol Med. 2017 Jun;21(6):1217-1227. doi: 10.1111/jcmm.13055. Epub 2016 Dec 20.
Protaetia brevitarsis seulensis (Kolbe) has been temporarily registered as a food material by the Ministry of Food and Drug Safety of Korea (MFDS). The current study aimed to discover small antithrombotic molecules from this edible insect. Five indole alkaloids, 5-hydroxyindolin-2-one (1), (1R,3S)-1-methyl-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid (2), (1S,3S)-1-methyl-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid (3), (3S)-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid (4) and L-tryptophan (5), were isolated from the insect. Among them, compounds 1 and 2 prolonged aPTT and PT and impaired thrombin and FXa generation on HUVEC surface. Moreover, these compounds inhibited platelet aggregation. Antithrombotic effects of compounds 1 and 2 were further confirmed in pre-clinical models of pulmonary embolism and arterial thrombosis. Collectively, these results demonstrated that compounds 1 and 2 could be effective antithrombotic agents and serve as new scaffolds for the development of antithrombotic drug.
短角幽天牛已被韩国食品药品安全部(MFDS)临时登记为食品原料。本研究旨在从这种可食用昆虫中发现小的抗血栓分子。从该昆虫中分离出了5种吲哚生物碱,即5-羟基吲哚啉-2-酮(1)、(1R,3S)-1-甲基-1,2,3,4-四氢-β-咔啉-3-羧酸(2)、(1S,3S)-1-甲基-1,2,3,4-四氢-β-咔啉-3-羧酸(3)、(3S)-1,2,3,4-四氢-β-咔啉-3-羧酸(4)和L-色氨酸(5)。其中,化合物1和2延长了活化部分凝血活酶时间(aPTT)和凝血酶原时间(PT),并损害了人脐静脉内皮细胞(HUVEC)表面凝血酶和凝血因子Xa(FXa)的生成。此外,这些化合物还抑制血小板聚集。化合物1和2的抗血栓作用在肺栓塞和动脉血栓形成的临床前模型中得到了进一步证实。总的来说,这些结果表明化合物1和2可能是有效的抗血栓药物,并可作为开发抗血栓药物的新骨架。