LYG-202 is a synthesized flavonoid with a piperazine substitution, exhibiting potent antitumor effects[1]. LYG-202 has been widely used to inhibit angiogenesis in different xenograft tumor mouse models[2].
In vitro, LYG-202 treatment for 24h inhibited the viabilities of HepG2, MCF-7, HeLa, BGC-823, MDA-MB-435, and HCT-116 cells, with the IC50 values of 4.74±0.80, 27.70±1.09, 8.05±0.21, 6.42±1.40, 6.74±0.71, and 10.90±0.95μM, respectively[3]. Pretreatment of J774A.1 cells with 4µM LYG-202 for 1 hour improved the thermostability of ALDOA enzyme and inhibited ALDOA hydrolysis[4]. Treatment of HepG2 cells with 8µM LYG-202 for 24h resulted in a decrease in mitochondrial membrane potential and intracellular ATP and increased intracellular ROS levels[5]. Treatment with 10µM LYG-202 for 8 hours inhibited vascular endothelial growth factor (VEGF)-stimulated human umbilical vein endothelial cell (HUEVC) migration and tube formation[6].
In vivo, LYG-202 treatment via intravenous injection at a dose of 20mg/kg/2-day for 3 weeks inhibited tumor growth in xenograft mice bearing MCF-7 tumor[7]. Along with the subcutaneous injection of TNF-α (1.5µg/day), LYG-202 treatment (p.o) inhibited H22 solid tumor growth in a xenograft mouse model at a dose of 750mg/kg every two days for 7 days[8].
References:
[1] Al-Ghorbani M, Gouda M A, Baashen M, et al. Piperazine heterocycles as potential anticancer agents: A review[J]. Pharmaceutical Chemistry Journal, 2022, 56(1): 29-37.
[2] Zhao K, Yao Y, Luo X, et al. LYG-202 inhibits activation of endothelial cells and angiogenesis through CXCL12/CXCR7 pathway in breast cancer[J]. Carcinogenesis, 2018, 39(4): 588-600.
[3] Zeng S, Liu W, Nie F, et al. LYG-202, a new flavonoid with a piperazine substitution, shows antitumor effects in vivo and in vitro[J]. Biochemical and biophysical research communications, 2009, 385(4): 551-556.
[4] Bai D, Du J, Bu X, et al. ALDOA maintains NLRP3 inflammasome activation by controlling AMPK activation[J]. Autophagy, 2022, 18(7): 1673-1693.
[5] Chen F, Zhang L, Qiang L, et al. Reactive oxygen species-mitochondria pathway involved in LYG-202-induced apoptosis in human hepatocellular carcinoma HepG2 cells[J]. Cancer Letters, 2010, 296(1): 96-105.
[6] Chen Y, Lu N, Ling Y, et al. LYG-202, a newly synthesized flavonoid, exhibits potent anti-angiogenic activity in vitro and in vivo[J]. Journal of pharmacological sciences, 2010, 112(1): 37-45.
[7] Zhao Y, Wang X, Sun Y, et al. LYG-202 exerts antitumor effect on PI3K/Akt signaling pathway in human breast cancer cells[J]. Apoptosis, 2015, 20(9): 1253-1269.
[8] Chen F, Lu N, Zhang H, et al. LYG-202 augments tumor necrosis Factor-α-Induced apoptosis via attenuating casein kinase 2-Dependent nuclear Factor-κB pathway in HepG2 cells[J]. Molecular pharmacology, 2012, 82(5): 958-971.
LYG-202是一种具有哌嗪取代基的合成黄酮类化合物,展现出显著的抗肿瘤活性[1]。该化合物已在多种移植瘤小鼠模型中广泛应用于抑制血管生成[2]。
在体外,LYG-202处理24小时可抑制HepG2、MCF-7、HeLa、BGC-823、MDA-MB-435和HCT-116细胞的活力,IC50值分别为4.74±0.80、27.70±1.09、8.05±0.21、6.42±1.40、6.74±0.71和10.90±0.95μM[3]。用4μM的LYG-202预处理J774A.1细胞1小时,能提高ALDOA酶的热稳定性并抑制酶水解[4]。使用8μM的LYG-202处理HepG2细胞24小时,可导致线粒体膜电位和细胞内ATP水平下降,同时增加活性氧含量[5]。以10μM的LYG-202处理人脐静脉内皮细胞(HUEVC)8小时,能抑制血管内皮生长因子(VEGF)刺激的细胞迁移和管状结构形成[6]。
在体内,每两天静脉注射20mg/kg剂量的LYG-202持续3周,可抑制MCF-7移植瘤小鼠的肿瘤生长[7]。在每日皮下注射TNF-α的条件下,每两天口服750mg/kg剂量的LYG-202连续7天,能抑制H22实体瘤移植瘤模型的肿瘤生长[8]。
















