Phenoxyaromatic Acid Analogues as Novel Radiotherapy Sensitizers: Design, Synthesis and Biological Evaluation
作者:Hongquan Zhang、Chunxi Wen、Bingting Li、Xinlin Yan、Yangrong Xu、Jialin Guo、Shi Hou、Jiajia Chang、Song Li、Junhai Xiao
DOI:10.3390/molecules27082428
日期:——
effectiveness of radiation. Inspired by hemoglobin allosteric oxygen release regulators, a series of novel phenoxyacetic acid analogues were designed and synthesized. A numerical method was applied to determine the activity and safety of newly synthesized compounds. In vitro studies on the evaluation of red blood cells revealed that compounds 19c (∆P50 = 45.50 mmHg) and 19t (∆P50 = 44.38 mmHg) improve
放射治疗是脑肿瘤治疗的重要手段。胶质母细胞瘤 (GB) 的标准治疗方法是最大程度的手术切除联合放疗和化疗。然而,实体瘤缺氧区的肿瘤细胞对放疗不敏感,可能会导致放射抗性。因此,增加肿瘤内氧浓度的放射治疗增敏剂有望提高放射效果。受血红蛋白变构氧释放调节剂的启发,设计合成了一系列新型苯氧乙酸类似物。应用数值方法确定新合成化合物的活性和安全性。评估红细胞的体外研究表明,化合物 19c (ΔP50 = 45.50 mmHg) 和 19t (ΔP50 = 44. 38 mmHg) 与阳性对照依依普罗 (ΔP50 = 36.40 mmHg) 相比,有效地提高了氧气释放性能。初步安全性评估显示,19c 对 HEK293 和 U87MG 细胞没有细胞毒性,而 19t 对这两种细胞都没有细胞毒性,没有选择性。体内活性测定证实,19c 对小鼠大脑中原位移植的 GB 表现出放射增敏作用。此外,在大鼠中进行的药代动力学研究表明,19c