Quantifying mitochondrial viscosity changes by an AIE probe during drug therapy.
Jinghui Qiao1, Yueyao Liu2, Zhigui Ma2
1Polymer Research Institute, State Key Laboratory of Advanced Polymer Materials, Sichuan University, Chengdu 610065, PR China. zhaoxz@scu.edu.cn.
Chemical Communications (Cambridge, England)
|June 20, 2025
Summary
A new fluorescent probe, TPE-4TPP, measures mitochondrial viscosity changes caused by anticancer drugs. This allows scientists to quantitatively link drug exposure time to viscosity alterations within mitochondria.
Area of Science:
- Biochemistry
- Cell Biology
- Pharmacology
Background:
- Mitochondrial viscosity is crucial for cellular function.
- Anticancer drugs can alter mitochondrial dynamics.
- Developing tools to monitor these changes is important.
Purpose of the Study:
- To develop a novel probe for measuring mitochondrial viscosity.
- To investigate the impact of anticancer drugs on mitochondrial viscosity.
- To establish a quantitative relationship between drug exposure and viscosity.
Main Methods:
- Synthesis of a novel aggregation-induced emission (AIE) fluorescent probe (TPE-4TPP).
- Mitochondrial targeting of the probe.
- Utilizing fluorescence lifetime measurements.
- Quantifying viscosity changes in response to drug treatment.
Main Results:
- TPE-4TPP successfully targeted mitochondria.
- The probe showed sensitivity to viscosity changes.
- A quantitative correlation between drug duration and mitochondrial viscosity was established.
Conclusions:
- TPE-4TPP is a valuable tool for studying mitochondrial viscosity.
- The probe enables dynamic monitoring of drug-induced cellular changes.
- This work provides insights into anticancer drug mechanisms.
