Synthesis and effect on SMMC-7721 cells of new benzo[ c , d ]indole rhodanine complex merocyanines as PDT photosensitizers
作者:Mengqi Yan、Junlong Zhao、Dan Sun、Wei Sun、Borui Zhang、Wenting Deng、Dandan Zhang、Lanying Wang
DOI:10.1016/j.tet.2017.04.060
日期:2017.6
Photodynamic therapy (PDT) represents a modern and noninvasive therapeutic approach, however, it relies on the development of photosensitizers. Here five new benzo[c,d]indole rhodamine complex merocyanines (BIRCM) D1-D5, displaying low dark toxicity and significant photo toxicity, were synthesized as PDT photosensitizers, and characterized by 1H NMR, IR, UV–Vis and HRMS. The investigation of their
光动力疗法(PDT)代表了一种现代且无创的治疗方法,但是它依赖于光敏剂的发展。在此合成了五种新的苯并[ c,d ]吲哚若丹明络合花青素(BIRCM)D1 - D5,具有低的暗毒性和显着的光毒性,被合成为PDT光敏剂,并通过1 H NMR,IR,UV-Vis和HRMS表征。在不同溶剂中的吸收光谱研究表明,最大吸收和消光系数在507–679 nm和0.21×10 4 –1.27×10 5 L·mol -1 cm -1范围内, 分别。对PDT活性的评估表明,只有辐射才能杀死SMMC-7721细胞,在施用剂量和持续时间下,细胞存活率和抑制率分别为92%–87%和78%–49%。尤其是,利用吸收在红色区域的D2作为PDT的光敏剂,分析了其对SMMC-7721细胞存活的影响,发现在不照射的情况下,细胞存活率为92%,在60℃的照射下,细胞抑制率为78%。浓度为2.5×10 -6 mol / L,表现出