In Situ Albumin-Hitchhiking NIR-II Probes for Accurate Detection of Micrometastases.
Nano Lett
; 23(12): 5731-5737, 2023 06 28.
Article
in En
| MEDLINE
| ID: mdl-37283563
ABSTRACT
Tumor metastasis remains the primary cause of treatment failure in cancer patients, and the high-sensitivity preoperative and intraoperative detection of occult micrometastases continues to pose a notorious challenge. Therefore, we have designed an in situ albumin-hitchhiking near-infrared window II (NIR-II) fluorescence probe, IR1080, for the precise detection of micrometastases and subsequent fluorescence image-guided surgery. IR1080 rapidly covalently conjugates with albumin in plasma, resulting in a stronger fluorescence brightness upon binding. Moreover, the albumin-hitchhiked IR1080 has a high affinity for secreted protein acidic and rich in cysteine (SPARC), an albumin-binding protein that is overexpressed in micrometastases. The interaction between SPARC and IR1080-hitchhiked albumin enhances IR1080's capacity to track and anchor micrometastases, leading to a high detection rate and margin delineation ability, as well as a high tumor-to-normal tissue ratio. Therefore, IR1080 represents a highly efficient strategy for the diagnosis and image-guided resection surgery of micrometastases.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Surgery, Computer-Assisted
/
Neoplasm Micrometastasis
Type of study:
Diagnostic_studies
Limits:
Humans
Language:
En
Journal:
Nano Lett
Year:
2023
Document type:
Article