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Author Spotlight: A Bicelle Crystallization Setup for ABC Transporter Membrane Proteins to Advance Drug Development
Published on: August 25, 2023
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Acridine-Based Chalcone 1C and ABC Transporters.
Ondrej Franko1, Martina Čižmáriková1, Martin Kello1
1Department of Pharmacology, Faculty of Medicine, Pavol Jozef Šafárik University, 040 11 Košice, Slovakia.
International Journal of Molecular Sciences
|May 14, 2025
Summary
A novel chalcone compound selectively inhibited colorectal cancer cell growth and reduced key drug efflux transporters, primarily ABCB1. This suggests potential for overcoming multidrug resistance in cancer therapy.
Area of Science:
- Pharmacology
- Molecular Biology
- Cancer Research
Background:
- Chalcones are investigated as anticancer agents.
- Multidrug resistance (MDR) in cancer is often mediated by ATP-binding cassette (ABC) transporters.
- Inhibiting ABC transporters is a strategy to enhance chemotherapy efficacy.
Purpose of the Study:
- To investigate the effect of a novel acridine-based chalcone (1C) on ABC transporter expression and function in colorectal cancer cells.
- To explore the potential of 1C in overcoming multidrug resistance.
- To elucidate the mechanism of action of 1C on ABCB1.
Main Methods:
- Gene and protein expression analysis of ABCB1, ABCC1, and ABCG2 in COLO 205 and COLO 320 cells.
- Cell viability assays.
- Molecular docking and ATPase activity assays.
- Galectin-1 (GAL1) expression analysis.
Main Results:
- Compound 1C suppressed colorectal cancer cell growth and significantly reduced ABCB1 protein levels in COLO 320 cells.
- 1C also decreased ABCC1 protein levels and transiently lowered GAL1 expression in COLO 205 cells.
- Molecular docking and ATPase assays suggest 1C acts as an allosteric modulator of ABCB1.
- ABCB1 and ABCC1/2 were identified as major contributors to multidrug resistance in these cells.
Conclusions:
- The novel chalcone 1C demonstrates potential as an anticancer agent by inhibiting cell growth and key drug efflux transporters.
- 1C primarily affects ABCB1 and to a lesser extent ABCC1 in colorectal cancer cells.
- The findings suggest a possible interaction between GAL1 and ABCB1, warranting further investigation.
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