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Intra‐Operative Definition of Glioma Infiltrative Margins by Visualizing Immunosuppressive Tumor‐Associated Macrophages.
- Source :
- Advanced Science; Oct2023, Vol. 10 Issue 28, p1-17, 17p
- Publication Year :
- 2023
-
Abstract
- Accurate delineation of glioma infiltrative margins remains a challenge due to the low density of cancer cells in these regions. Here, a hierarchical imaging strategy to define glioma margins by locating the immunosuppressive tumor‐associated macrophages (TAMs) is proposed. A pH ratiometric fluorescent probe CP2‐M that targets immunosuppressive TAMs by binding to mannose receptor (CD206) is developed, and it subsequently senses the acidic phagosomal lumen, resulting in a remarkable fluorescence enhancement. With assistance of CP2‐M, glioma xenografts in mouse models with a tumor‐to‐background ratio exceeding 3.0 for up to 6 h are successfully visualized. Furthermore, by intra‐operatively mapping the pH distribution of exposed tissue after craniotomy, the glioma allograft in rat models is precisely excised. The overall survival of rat models significantly surpasses that achieved using clinically employed fluorescent probes. This work presents a novel strategy for locating glioma margins, thereby improving surgical outcomes for tumors with infiltrative characteristics. [ABSTRACT FROM AUTHOR]
- Subjects :
- GLIOMAS
MACROPHAGES
FLUORESCENT probes
CANCER cells
OVERALL survival
Subjects
Details
- Language :
- English
- ISSN :
- 21983844
- Volume :
- 10
- Issue :
- 28
- Database :
- Complementary Index
- Journal :
- Advanced Science
- Publication Type :
- Academic Journal
- Accession number :
- 172855961
- Full Text :
- https://doi.org/10.1002/advs.202304020