中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (28): 4532-4536.doi: 10.3969/j.issn.2095-4344.0332

• 组织构建细胞学实验 cytology experiments in tissue construction • 上一篇    下一篇

近红外荧光染料IR-780在肾透明细胞癌中的成像特征

张  伟1,屈志义1,刘晓阳1,王福利2,叶永利2,闫  飞2,魏  迪2,袁建林2   

  1. 1神木市医院外一科,陕西省神木市  719300;2中国人民解放军空军军医大学西京医院泌尿外科,陕西省西安市  710032
  • 收稿日期:2018-04-25 出版日期:2018-10-08 发布日期:2018-10-08
  • 通讯作者: 袁建林,教授,主任医师,中国人民解放军空军军医大学西京医院泌尿外科,陕西省西安市 710032
  • 作者简介:张伟,男,1982年生,陕西省神木市人,汉族,主治医生,中国人民解放军空军军医大学在读硕士,主要从事泌尿系结石及前列腺增生、膀胱肿瘤的的微创治疗研究。
  • 基金资助:

    陕西省社会发展科技攻关项目(2016SF-162);陕西省科技统筹计划项目(2012KTCL03-03);陕西省协同创新计划项目(2015XT-53)

Imaging characteristics of near-infrared fluorescent dye IR-780 in clear cell renal cell carcinoma

Zhang Wei1, Qu Zhi-yi1, Liu Xiao-yang1, Wang Fu-li2, Ye Yong-li2, Yan Fei2, Wei Di2, Yuan Jian-lin2   

  1. 1First Department of Surgery, the People’s Hospital of Shenmu, Shenmu 719300, Shaanxi Province, China; 2Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, Shaanxi Province, China
  • Received:2018-04-25 Online:2018-10-08 Published:2018-10-08
  • Contact: Yuan Jian-lin, Professor, Chief physician, Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, Shaanxi Province, China
  • About author:Zhang Wei, Master candidate, Attending physician, First Department of Surgery, the People’s Hospital of Shenmu, Shenmu 719300, Shaanxi Province, China
  • Supported by:

    the Social Development and Technologies Research & Development of Shaanxi Province, No. 2016SF-162; the Technology Coordination Program of Shaanxi Province, No. 2012KTCL03-03; the Collaborative Innovation Program of Shaanxi Province, No. 2015XT-53

摘要:

文章快速阅读:

文题释义:
荧光染料:是指吸收某一波长的光波后能发射出另一波长大于吸收光的光波的物质,它们大多是含有苯环或杂环并带有共轭双键的化合物,可单独使用,也可组合成复合荧光染料使用。
荧光染料IR-780近红外荧光成像的优越性:它是亲脂性阳离子化合物,仅凭自身就可选择性地高效蓄积在肿瘤细胞中,肿瘤部位与正常组织荧光信号比值达到3即可认为具有肿瘤主动靶向作用,IR-780可达此比值的近7倍,机体荧光特性好;进入生物体后可稳定保持2周以上的荧光信号,可对肿瘤靶向区域重复成像,在血清中自身稳定性高;穿透活体组织能力强;可持续监测肿瘤的发展、转移变化,对肿瘤治疗疗效进行评估;未结合的染料,短期内能迅速通过循环系统而被机体完全排出体外。
摘要
背景
:课题组研发了一组可以直接与肿瘤细胞结合的有机近红外荧光染料,IR-780是其中的优秀代表。
目的:评估近红外荧光染料 IR-780在肾透明细胞癌中的特异性成像效果。
方法:取对数生长期的人肾透明细胞癌细胞786-O、ACHN和正常人胚肾细胞293T,分别与20 μmol/L荧光染料IR-780共孵育30 min,激光共聚焦显微镜下观察染料在肾透明细胞癌细胞中的成像。取对数生长期的人肾透明细胞癌细胞786-O,与20 μmol/L近红外荧光染IR-780共孵育30 min,激光共聚焦显微镜下观察染料在细胞线粒体与及溶酶体内的定位。在人血液样本中分别加入10,100,1 000,10 000个DAPI染色的人肾透明细胞癌细胞786-O,分离培养各组单个核细胞,再与20 μmol/L 近红外荧光染料IR-780共孵育30 min,激光共聚焦显微镜下观察DAPI和IR780双阳性染色细胞。
结果与结论:①近红外荧光染料IR-780具备使多种肾透明细胞癌细胞显像的能力,对正常肾胚上皮细胞则无此能力;②近红外荧光染料IR-780与溶酶体或线粒体均有明显的染色重叠,验证了IR-780在膜性细胞器线粒体和溶酶体内的选择性聚集作用;③近红外荧光染料IR-780可检测到血液中微量的肾透明细胞癌细胞;④结果表明,近红外荧光染料 IR-780能够在肾透明细胞癌细胞内特异性蓄积,可用于血液中肾透明细胞癌细胞的特异性诊断。

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程
ORCID:
0000-0002-1136-1173(张伟)

关键词: 近红外荧光染料, IR-780, 肾透明细胞癌, 成像, 定位, 诊断, 临床应用, 组织构建

Abstract:

BACKGROUND: The near-infrared fluorescent dyes that directly bind to tumor cells have been developed, and IR-780 stands out.
OBJECTIVE: To evaluate the specific imaging effect of near-infrared fluorescent dye IR-780 in clear cell renal cell carcinoma (ccRCC).
METHODS: Human ccRCC cells 786-O, ACHN and normal human embryonic kidney 293T cells in logarithmic growth phase were incubated with 20 μmol/L IR-780 for 30 minutes. The localization of the dye in ccRCC was observed by laser confocal microscopy. Human ccRCC cells 786-O in logarithmic phase was incubated with 20 μmol/L IR-780 for 30 minutes. The localization of the dye in mitochondria and lysosomes was observed under confocal laser scanning microscope. 10, 100, 1 000 and 10 000 DAPI-stained human ccRCC cells 786-O were respectively added to human blood samples. The mononuclear cells in each group were isolated and cultured with 20 μmol/L IR-780 for 30 minutes. DAPI and IR-780 double positive cells were observed under confocal laser scanning microscope.
RESULTS AND CONCLUSION: IR-780 possessed the ability to visualize a variety of ccRCC cells, but not for normal renal epithelial cells.  IR-780 had obvious overlapping staining in lysosomes or mitochondria, indicating its selective accumulation in mitochondria and lysosomes in the organelles. IR-780 could detect a small amount of ccRCC in the blood. These results suggest that the near-infrared fluorescent dye IR-780 can specifically accumulate in ccRCC cells, which can be used for specific diagnosis of ccRCC.

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程

Key words: Fluorescent Dyes, Kidney Neoplasms, Molecular Imaging, Tissue Engineering

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