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Updated: Feb 10, 2026

Quantifying Agonist Activity at G Protein-coupled Receptors
Published on: December 26, 2011
Anticancer activity study of A3 adenosine receptor agonists
Gabriella Marucci1, Claudia Santinelli2, Michela Buccioni1
1School of Pharmacy, University of Camerino, via S. Agostino, 1, Camerino, MC 62032, Italy.
A novel compound 5 shows significant anticancer effects by inhibiting cancer cell growth and migration. It induces cell death through apoptosis and autophagy, with reactive oxygen species playing a role.
Area of Science:
- Pharmacology
- Oncology
- Molecular Biology
Background:
- The A3 adenosine receptor (A3AR) is a potential target for anticancer drug development.
- Identifying selective A3AR agonists is crucial for advancing cancer therapeutics.
Purpose of the Study:
- To evaluate the in vitro anticancer activity of novel synthesized compounds targeting A3AR.
- To investigate the mechanisms of action of potential anticancer agents in various cancer cell lines.
Main Methods:
- Synthesized and screened compounds for A3AR affinity and selectivity.
- Assessed cytotoxicity, growth inhibition, migration, apoptosis, autophagy, and ROS in PC3, Hep G2, and Caco-2 cells.
Main Results:
- Compound 5, at micromolar concentrations, inhibited growth and migration of prostate, liver, and colorectal cancer cells.
- Compound 5 induced apoptosis and autophagy, leading to autophagic cell death.
- Elevated reactive oxygen species (ROS) levels were observed, suggesting their involvement in cell death.
Conclusions:
- Compound 5 demonstrates potent anticancer effects through a multi-mechanistic pathway involving apoptosis and autophagy.
- Compound 5 represents a promising candidate for further development as an anticancer agent.
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