Dual-function fluorescent probe for cancer imaging and therapy.

Area of Science:

• Nanotechnology and Biomedical Engineering
• Quantum Dot (QD) Development
• Cancer Theranostics

Background:

• Existing fluorescent probes often utilize a single targeting agent.
• Dual-function quantum dot (QD) probes combining targeting and therapeutic effects are scarce.
• Need for advanced diagnostic tools for simultaneous cancer detection.

Purpose of the Study:

• To prepare a novel dual-targeting CdTe/CdS quantum dot (QD) fluorescent probe.
• To evaluate the probe's dual-targeting capability and therapeutic effect on cancer cells.
• To assess its efficacy for simultaneous detection of liver and breast cancer cells.

Main Methods:

• Synthesis of CdTe/CdS core-shell quantum dots.
• Conjugation of bovine serum albumin-glycyrrhetinic acid and arginine-glycine-aspartic acid to QDs.
• In vitro cell imaging and apoptosis induction assays.

Main Results:

• Successfully prepared a dual-targeting QD fluorescent probe.
• Demonstrated enhanced targeting and imaging in vitro.
• Induced apoptosis in liver cancer cells, indicating a therapeutic effect.

Conclusions:

• The developed QD probe exhibits dual-targeting and therapeutic functionalities.
• It shows potential as an efficient diagnostic tool for simultaneous detection of liver and breast cancer.
• This represents a significant advancement in theranostic applications of quantum dots.