Quercetin (Qc) shows strong antitumor effects but has limited clinical application due to poor water solubility and bioavailability. In a screening of novel semi-synthetic derivatives of Qc, 3,7-dihydroxy-2-[4-(2-chloro-1,4-naphthoquinone-3-yloxy)-3-hydroxyphenyl]-5-hydroxychromen-4-one (CHNQ) could ameliorate acetic acid induced acute colitis in vivo more efficiently than Qc. Since inflammation contributes
槲皮素 (Qc) 具有很强的抗肿瘤作用,但由于
水溶性和
生物利用度差,临床应用受到限制。在筛选 Qc 的新型半合成衍
生物时,3,7-dihydroxy-2-[4-(2-chloro-1,4-naphthoquinone-3-yloxy)-3-hydroxyphenyl]-5-hydroxychromen-4-一(CHNQ)可以比Qc更有效地改善体内
乙酸诱导的急性结肠炎。由于炎症会导致结直肠癌 (CRC),我们假设 CHNQ 可能具有抗癌作用。使用 CRC
细胞系 HCT-116 和 HT-29,我们报告说 CHNQ 的细胞毒性是 Qc 的三倍,并且具有强烈的细胞凋亡诱导作用。正如 CHNQ 等
萘醌类化合物所预期的那样,观察到氧化应激的强烈诱导。这伴随着活性氧 (ROS) 诱导的自噬,其特征是 LC3 的脂化显着增加、Akt/PKB 的活化降低、酸性囊泡积累和用 CHNQ 处理的 HCT-116