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开发高度灵敏的FAPα光探针的总体策略,用于侵入性癌症检测

Yurong Feng¹, Cheng Xie¹, Tian-Bing Ren¹

¹State Key Laboratory of Chemo/Biosensing, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P.R. China.

Angewandte Chemie (International ed. in English)

|August 18, 2025

概括

研究人员开发了一种新的光探针策略,用于检测瘤中的纤维细胞激活蛋白α (FAPα). 这种新的探针提高了精确瘤边缘划分和瘤切除评估的灵敏度.

科学领域:

生物医学工程生物医学工程
化学生物学化学生物学
在瘤学瘤学.

背景情况:

纤维细胞激活蛋白α (FAPα) 与癌症的进展有关,包括生长,入侵和转移.
目前用于检测瘤中的FAPα的方法受到灵敏度的限制,阻碍了精确的瘤边缘划分.

研究的目的:

为构建高度敏感的FAPα激活光探针制定一个一般的设计策略.
为了证明一种新型探针对于敏感的FAPα检测和瘤成像的实用性.

主要方法:

采用了一种设计策略,将正电荷引入光体骨.
用分子对接模拟和光谱学来评估探头-FAPα相互作用.
一个特定的探头FQCy7被合成并测试了它的 in vitro 和 in vivo 的性能.

主要成果:

引入正电荷显著改善了探头对FAPα的亲和力和灵敏度.
FQCy7对FAPα表现出高度敏感性,这使得研究其在癌细胞迁移和侵入中的作用成为可能.
FQCy7成功地将侵入性瘤与良性病变区分开来,并有助于评估瘤切除的准确性.

结论:

为设计敏感的FAPα激活光探针制定了一种新的策略.
FQCy7作为一个强大的工具,用于精确的瘤检测,区分恶性和良性组织.
这项工作提高了准确瘤边缘评估和手术指导的能力.

关键词:

FAPα是指FAPα的一种类型.光探测器探测器可以发光.图像成像是一种成像.侵袭性癌症是一种侵袭性癌症.

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