蛋白冠原位调控增强肿瘤靶向19F MRI和联合治疗
李睿鹥, 李莎, 徐秋怡, 隋美菊, 陈世桢

In Situ Regulation of Protein Corona for Enhanced Tumor-targeted 19F MRI and Combined Therapy
LI Ruiyi, LI Sha, XU Qiuyi, SUI Meiju, CHEN Shizhen
图3 PP@BSA-TAFeIII NPs的体外性能评估. (a) PP@BSA-TAFeIII NPs溶液在不同pH下Fe3+释放的速度;(b) 808 nm激光(1 W·cm-2)照射下,不同浓度的PP@BSA-TAFeIII NPs溶液和H2O的升温曲线图;(c) 808 nm激光(1 W·cm-2)循环照射下,PP@BSA-TAFeIII NPs溶液的温度变化曲线;(d) PP@BSA-TAFeIII NPs(Probe)、PP@BSA-TA NPs、PP@BSA NPs分别与FBS孵育后的凝胶电泳图;(e) ELISA定量检测吸附在不同纳米颗粒上的转铁蛋白含量;(f)不同浓度PP@BSA-TAFeIII NPs溶液的19F MRI图像,及其信号强度与浓度的线性拟合曲线
Fig. 3 In vitro characterization of PP@BSA-TAFeIII NPs. (a) pH-dependent release of Fe3+ by PP@BSA-TAFeIII NPs solution; (b) Temperature variation curves of PP@BSA-TAFeIII NPs solutions with different concentrations under the irradiation of 808 nm laser with 1.0 W·cm-2; (c) Temperature variation curves of PP@BSA-TAFeIII NPs solutions under the cyclic irradiation of 808 nm laser with 1.0 W·cm-2; (d) Gel electrophoresis of proteins adsorbed on PP@BSA-TAFeIII NPs (Probe), PP@BSA-TA NPs and PP@BSA NPs treated with FBS; (e) Quantitative detection of transferrin adsorbed on different nanoparticles by ELISA; (f) 19F MRI images of PP@BSA-TAFeIII NPs solutions at different concentrations, and the linear fitting curve of signal intensity versus concentration