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Updated: Oct 28, 2025

Computed Tomography-guided Time-domain Diffuse Fluorescence Tomography in Small Animals for Localization of Cancer Biomarkers
Published on: July 17, 2012
Receptor-Targeted Fluorescence-Guided Surgery With Low Molecular Weight Agents
Servando Hernandez Vargas1,2, Christie Lin3, Hop S Tran Cao4
1The Brown Foundation Institute of Molecular Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States.
Fluorescence-guided surgery (FGS) enhances cancer removal by enabling real-time visualization of tumors. Low molecular weight agents are emerging as promising alternatives to antibodies for improved tumor detection during surgery.
Area of Science:
- Oncology
- Surgical Innovation
- Medical Imaging
Background:
- Cancer surgery is the primary curative treatment for solid tumors, but incomplete resection leads to relapse.
- Current visualization methods rely on visual and tactile cues, which are insufficient for detecting all malignant cells.
- Advanced imaging technologies are needed to improve intraoperative tumor detection and surgical outcomes.
Purpose of the Study:
- To review the current state of low molecular weight agents for fluorescence-guided surgery (FGS).
- To discuss the significance, applications, and limitations of emerging tumor-selective FGS technologies.
- To highlight the potential of FGS to revolutionize cancer surgery.
Main Methods:
- Review of clinical studies on near-infrared fluorescence-guided surgery (NIRF-FGS) agents.
- Analysis of emerging low molecular weight agents (peptides, small molecules) in clinical development.
- Discussion of macromolecule-based (antibody) FGS agents and their clinical translation.
Main Results:
- Tumor-selective FGS agents significantly improve fluorescence detection compared to non-targeted dyes.
- Low molecular weight agents are emerging as viable alternatives to antibodies for FGS.
- NIRF-FGS shows promise for real-time detection of surgical margins, residual disease, and metastases.
Conclusions:
- FGS, particularly with tumor-selective agents, has the potential to significantly improve cancer resection accuracy.
- Low molecular weight agents offer a promising avenue for advancing FGS technologies.
- Further development and clinical application of FGS are crucial for enhancing surgical standards in oncology.
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