Near-Infrared Fluorescence Imaging of Both Colorectal Cancer and Ureters Using a Low-Dose Integrin Targeted Probe

被引：46

作者：

Verbeek, Floris P. R. ^{[1
]}

van der Vorst, Joost R. ^{[1
]}

Tummers, Quirijn R. J. G. ^{[1
]}

Boonstra, Martin C. ^{[1
]}

de Rooij, Karien E. ^{[2
,4
]}

Loewik, Clemens W. G. M. ^{[2
]}

Valentijn, A. Rob P. M. ^{[3
]}

van de Velde, Cornelis J. H. ^{[1
]}

Choi, Hak Soo ^{[5
]}

Frangioni, John V. ^{[5
,6
]}

Vahrmeijer, Alexander L. ^{[1
]}

机构：

[1] Leiden Univ, Med Ctr, Dept Surg, Leiden, Netherlands

[2] Leiden Univ, Med Ctr, Dept Radiol, Leiden, Netherlands

[3] Leiden Univ, Med Ctr, Leiden, Netherlands

[4] Percuros BV, Leiden, Netherlands

[5] Harvard Univ, Beth Israel Deaconess Med Ctr, Sch Med, Div Hematol Oncol,Dept Med, Boston, MA 02215 USA

[6] Harvard Univ, Beth Israel Deaconess Med Ctr, Sch Med, Dept Radiol, Boston, MA 02215 USA

来源：

ANNALS OF SURGICAL ONCOLOGY | 2014年 / 21卷

基金：

美国国家卫生研究院;

关键词：

ALPHA(V)BETA(3) EXPRESSION; RGD; F-18-GALACTO-RGD; IDENTIFICATION; PERMEABILITY; METASTASES; TUMORS;

D O I：

10.1245/s10434-014-3524-x

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

Background. Irradical tumor resections and iatrogenic ureteral injury remain a significant problem during lower abdominal surgery. The aim of the current study was to intraoperatively identify both colorectal tumors and ureters in subcutaneous and orthotopic animal models using cRGD-ZW800-1 and near-infrared (NIR) fluorescence. Methods. The zwitterionic fluorophore ZW800-1 was conjugated to the tumor specific peptide cRGD (targeting integrins) and to the a-specific peptide cRAD. One nmol cRGD-ZW800-1, cRAD-ZW800-1, or ZW800-1 alone was injected in mice bearing subcutaneous HT-29 human colorectal tumors. Subsequently, cRGD-ZW800-1 was injected at dosages of 0.25 and 1 nmol in mice bearing orthotopic HT-29 tumors transfected with luciferase2. In vivo biodistribution and ureteral visualization were investigated in rats. Fluorescence was measured intraoperatively at several time points after probe administration using the FLARE imaging system. Results. Both subcutaneous and orthotopic tumors could be clearly identified using cRGD-ZW800-1. A significantly higher signal-to-background ratio was observed in mice injected with cRGD-ZW800-1 (2.42 +/- 0.77) compared with mice injected with cRAD-ZW800-1 or ZW800-1 alone (1.21 +/- 0.19 and 1.34 +/- 0.19, respectively) when measured at 24 h after probe administration. The clearance of cRGD-ZW800-1 permitted visualization of the ureters and also generated minimal background fluorescence in the gastrointestinal tract. Conclusions. This study appears to be the first to demonstrate both clear tumor demarcation and ureteral visualization after a single intravenous injection of a targeted NIR fluorophore. As a low dose of cRGD-ZW800-1 provided clear tumor identification, clinical translation of these results should be possible.

引用

页码：S528 / S537

页数：10

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