Lighthouses illuminating tumor metastasis: The application of fluorescent probes in the localization and imaging metastatic lymph nodes across various tumors.

Biomaterials

State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, Dalian, 116024, China. Electronic address:

Published: December 2024

The significance of metastatic lymph nodes in tumor diagnosis and prognosis is self-evident. With the deepening of research on the lymphatic system and the advancement of imaging technology, an increasing number of near-infrared fluorescent probes targeting tumor metastatic lymph nodes have been developed. These probes can identify tumors while further detecting lymph nodes (LNs), showcasing great potential in image-guided surgery. In this review, we comprehensively outline the design strategies and applications of near-infrared fluorescent probes for cancers with a high propensity for lymph node metastasis during disease progression. Particular emphasis is placed on two targeting mechanisms: tumor-directed probes capable of identifying metastatic lymph nodes and lymph node-specific probes utilizing passive targeting of metastatic lymph nodes or active targeting of lymph nodes directly. Additionally, we discuss current issues and future prospects in this field, which will facilitate the development of new fluorescent probes and their further clinical translation.

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http://dx.doi.org/10.1016/j.biomaterials.2024.123020DOI Listing

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