高等学校化学学报 ›› 2023, Vol. 44 ›› Issue (12): 20230367.doi: 10.7503/cjcu20230367

• 分析化学 • 上一篇    下一篇

咔唑近红外荧光探针可视化线粒体及体内成像应用

顾亚琴, 丁劲峰, 陈金娥, 谢文娜, 肖林霞()   

  1. 江苏医药职业学院, 盐城 224002
  • 收稿日期:2023-08-10 出版日期:2023-12-10 发布日期:2023-10-20
  • 通讯作者: 肖林霞 E-mail:xiaolinxiaxlx@126.com
  • 基金资助:
    江苏省高等学校基础科学项目(22KJD360002)

Visualization of Mitochondria via Carbazole Near-infrared Fluorescent Probe and in vivo Imaging Application

GU Yaqin, DING Jinfeng, CHEN Jine, XIE Wenna, XIAO Linxia()   

  1. Jiangsu Vocational College of Medicine,Yancheng 224002,China
  • Received:2023-08-10 Online:2023-12-10 Published:2023-10-20
  • Contact: XIAO Linxia E-mail:xiaolinxiaxlx@126.com
  • Supported by:
    the Basic Science Project of Higher Education in Jiangsu Province, China(22KJD360002)

摘要:

基于咔唑骨架合成了一系列具有大Stokes位移的近红外荧光探针(化合物6g~6j), 并通过高分辨质谱和核磁共振波谱进行了结构表征. 探针的理化性质及光学测试结果显示, 探针6j在水溶液中发射波长达 668 nm, 且具有大Stokes位移(146 nm)和高荧光量子产率(Φ=0.45). 将探针6j应用于细胞内成像, 表现出良好的线粒体靶向能力(P=0.90). 此外, 该探针能对裸鼠卵巢癌移植瘤组织进行荧光成像, 为临床上肿瘤的精准诊断提供了新策略.

关键词: 咔唑, 近红外, 线粒体, 荧光成像

Abstract:

A series of near-infrared fluorescence probes(6g—6j) with large Stokes shift was synthesized based on carbazole skeleton and characterized by high resolution mass spectrometry(HRMS) and nuclear magnetic resonance spectroscopy(NMRS). The physicochemical and optical properties of the probe show that probe 6j has a wavelength of 668 nm in aqueous solution, a large Stokes shift(146 nm) and a high fluorescence quantum yield(Φ=0.45). The probe 6j was applied to intracellular imaging, and showed an excellent mitochondrial targeting ability(P=0.90). In addition, the probe can fluoresce image in transplanted ovarian cancer tissues of nude mice, providing a new strategy for accurate diagnosis of tumors in clinical practice.

Key words: Carbazole, Near-infrared, Mitochondria, Fluorescence imaging

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