Specific Detection of Integrin α<sub>v</sub>β<sub>3</sub> by Light-Up Bioprobe with Aggregation-Induced Emission Characteristics
作者:Haibin Shi、Jianzhao Liu、Junlong Geng、Ben Zhong Tang、Bin Liu
DOI:10.1021/ja302369e
日期:2012.6.13
Specific bioprobes with fluorescence turn-on response are highly desirable for high contrast biosensing and imaging. In this work, we developed a new generation bioprobe by integrating tetraphenylsilole, a fluorogenic unit with aggregation-induced emission (AIE) characteristic, with cyclic arginine-glycine-aspartic acid tripeptide (cRGD), a targeting ligand to integrin α(v)β(3) receptor. Emission of
具有荧光开启响应的特定生物探针非常适合高对比度生物传感和成像。在这项工作中,我们通过将具有聚集诱导发射 (AIE) 特征的荧光单元四苯甲硅烷与环精氨酸-甘氨酸-天冬氨酸三肽 (cRGD)(整合素 α(v)β 的靶向配体)相结合,开发了新一代生物探针(3)受体。AIE 探针的发射在其与整合素 α(v)β(3) 特异性结合时开启,这允许定量检测溶液中的整合素 α(v)β(3) 并实时成像 cRGD 之间的结合过程和细胞膜上的整合素α(v)β(3)。该探针可用于跟踪整合素 α(v)β(3) 和识别整合素 α(v)β(3) 阳性癌细胞。