Ro 3306 functions as the ATP-competitive inhibitor targeting CDK1/cyclin B1 with Ki value of 35nmol/L, and targeting CDK1/cyclin A complexes with Ki value of 110nmol/L[1]. Ro 3306 has been widely used in cell cycle studies and anti-tumor assays[2].
In vitro, Ro 3306 exhibited an IC50 of 1.8μmol/L for WAC2 cell lines and the IC50 of 2.3μmol/L for NB69 cell lines after 48h treatment[3]. Ro 3306 treatment (5μmol/L, 24h) caused G2/M-phase cell cycle arrest and apoptosis in OCI-AML-3 cells, and reduced the levels of the antiapoptotic proteins Bcl-2 and survivin[4]. Ro 3306 treatment (10μmol/L, 20h) arrested immature porcine oocytes at the germinal vesicle (GV) stage[5].
In vivo, Ro 3306 treatment (Intraperitoneal injection) at a dose of 2mg/kg/day, every other day, for a week attenuated angiotensin II-mediated cardiac hypertrophy and cardiac fibrosis in male C57BL/6J mice[6]. Treatment with Ro 3306 at a dose of 1.5mg/kg/day for 5 days through intranasal administration inhibited infection with the influenza A PR/8 strain, prolonged the survival of infected mice, and significantly reduced viral load in BALB/c mice[7].
References:
[1] Vassilev L T, Tovar C, Chen S, et al. Selective small-molecule inhibitor reveals critical mitotic functions of human CDK1[J]. Proceedings of the National Academy of Sciences, 2006, 103(28): 10660-10665.
[2] Sunada S, Saito H, Zhang D, et al. CDK1 inhibitor controls G2/M phase transition and reverses DNA damage sensitivity[J]. Biochemical and biophysical research communications, 2021, 550: 56-61.
[3] Schwermer M, Lee S, Köster J, et al. Sensitivity to cdk1-inhibition is modulated by p53 status in preclinical models of embryonal tumors[J]. Oncotarget, 2015, 6(17): 15425.
[4] Kojima K, Shimanuki M, Shikami M, et al. Cyclin‐dependent kinase 1 inhibitor RO‐3306 enhances p53‐mediated Bax activation and mitochondrial apoptosis in AML[J]. Cancer science, 2009, 100(6): 1128-1136.
[5] Jang W I, Lin Z L, Lee S H, et al. A specific inhibitor of CDK1, RO-3306, reversibly arrests meiosis during in vitro maturation of porcine oocytes[J]. Animal reproduction science, 2014, 144(3-4): 102-108.
[6] Yamamoto T, Matsushima S, Okabe K, et al. Cyclin dependent kinase 1 (CDK1) positively regulates cardiac hypertrophy and fibrosis via TGF-beta pathway[J]. European Heart Journal, 2020, 41(Supplement_2): ehaa946. 3743.
[7] Zhao L, Yan Y, Dai Q, et al. The CDK1 inhibitor, Ro-3306, is a potential antiviral candidate against influenza virus infection[J]. Antiviral Research, 2022, 201: 105296.
Ro 3306是一种ATP竞争性抑制剂,主要靶向CDK1/cyclin B1(Ki值为35nmol/L)和CDK1/cyclin A复合物(Ki值为110nmol/L)[1]。Ro 3306已被广泛应用于细胞周期研究和抗肿瘤实验[2]。
在体外,Ro 3306处理48小时后,对WAC2细胞系的IC50值为1.8μmol/L,对 NB69细胞系的IC50值为2.3μmol/L[3]。使用5μmol/L的Ro 3306处理24小时,可导致OCI-AML-3细胞在G2/M期发生细胞周期阻滞并诱导细胞凋亡,同时降低抗凋亡蛋白Bcl-2和survivin的表达水平[4]。10μmol/L的Ro 3306处理20小时可使未成熟猪卵母细胞停滞在生发泡(GV)期[5]。
在体内,腹腔注射Ro 3306(2mg/kg/day,隔日给药,持续一周)可显著减轻由血管紧张素II诱导的雄性C57BL/6J小鼠心肌肥大和心脏纤维化[6]。鼻内给药Ro 3306(1.5mg/kg/day,连续5天)能有效抑制甲型流感病毒PR/8株的感染,延长感染小鼠的存活时间,并显著降低 BALB/c小鼠肺部的病毒载量[7]。
















