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Probing Cancer Metastasis at a Single-Cell Level with a Raman-Functionalized Anionic Probe
Priya Dharmalingam1, Krishnan Venkatakrishnan2, Bo Tan2
1Institute for Biomedical Engineering, Science and Technology (I-BEST) , Partnership between Ryerson University and St. Michael's Hospital , Toronto , Ontario M5B 1W8 , Canada.
Researchers developed novel anionic quantum probes for detecting metastatic cancer cells at the single-cell level. This breakthrough offers non-destructive, sensitive detection of cancer metastasis, aiding in early diagnosis and malignancy state discrimination.
Area of Science:
- Nanotechnology and Materials Science
- Oncology and Cancer Research
- Spectroscopy and Sensing Technologies
Background:
- Cancer metastasis is the leading cause of cancer mortality, yet current diagnostic methods fail to capture heterogeneous metastatic information.
- Existing techniques analyze pooled samples, losing critical single-cell data essential for understanding metastasis.
- A non-destructive, single-cell resolution method is needed for accurate metastatic cancer detection.
Purpose of the Study:
- To develop a non-destructive detection method for metastatic cancer at the single-cell level.
- To create self-functionalized anionic quantum probes with Surface-Enhanced Raman Spectroscopy (SERS) capabilities.
- To enable the detection of neoplastic transformations in metastatic cancer cells.
Main Methods:
- Fabrication of self-functionalized anionic quantum probes.
- Integration of non-destructive SERS ability using anionic surface species and NIR plasmon resonance.
- Application of probes for in vitro detection of metastatic cancer cells at single-cell concentrations.
Main Results:
- Demonstrated successful in vitro detection of metastatic cancer cells at single-cell sensitivity.
- Achieved non-destructive detection by incorporating SERS capabilities into the quantum probes.
- Successfully discriminated between different cancer malignancy states based on neoplastic transformations.
Conclusions:
- Self-functionalized anionic quantum probes offer a novel approach for metastatic cancer detection.
- The developed probes provide reliable diagnostic information at single-cell resolution.
- This technology represents a significant advancement in the early detection and characterization of cancer metastasis.
