A novel thiazolidine compound induces caspase-9 dependent apoptosis in cancer cells
F Esra Onen-Bayram1, Irem Durmaz, Daniel Scherman
1Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Yeditepe University, Kadıkoy, 34755 Istanbul, Turkey.
Abstract:
The forward chemogenomics strategy allowed us to identify a potent cytotoxic thiazolidine compound as an apoptosis-inducing agent. Chemical structures were designed around a thiazolidine ring, a structure already noted for its anticancer properties. Initially, we evaluated these novel compounds on liver, breast, colon and endometrial cancer cell lines. The compound 3 (ALC67) showed the strongest cytotoxic activity (IC(50) ∼5 μM). Cell cycle analysis with ALC67 on liver cells revealed SubG1/G1 arrest bearing apoptosis. Furthermore we demonstrated that cytotoxicity of this compound was due to the activation of caspase-9 involved apoptotic pathway, which is death receptor independent.
Insights
Researchers identified a novel thiazolidine compound (ALC67) that effectively induces apoptosis in cancer cells. This compound shows potent cytotoxic activity, particularly against liver cancer, by activating a key cell death pathway.
Area of Science:
- Medicinal Chemistry
- Cancer Biology
- Pharmacology
Background:
- Thiazolidine derivatives are recognized for their potential anticancer properties.
- Chemogenomics is a valuable strategy for identifying novel therapeutic agents.
- Targeting apoptosis is a critical approach in cancer treatment.
Purpose of the Study:
- To identify novel thiazolidine compounds with cytotoxic and apoptosis-inducing properties.
- To evaluate the anticancer activity of designed thiazolidine derivatives against various cancer cell lines.
- To elucidate the mechanism of action of the most potent compound.
Main Methods:
- Forward chemogenomics screening.
- Synthesis and chemical structure design of thiazolidine compounds.
- In vitro cytotoxicity assays on liver, breast, colon, and endometrial cancer cell lines.
- Cell cycle analysis and apoptosis assays (caspase-9 activation).
Main Results:
- Compound 3 (ALC67) exhibited significant cytotoxic activity (IC50 ~5 μM) against tested cancer cell lines.
- ALC67 induced SubG1/G1 phase arrest and apoptosis in liver cancer cells.
- The compound's cytotoxicity is mediated by the activation of the caspase-9 apoptotic pathway, independent of death receptors.
Conclusions:
- The novel thiazolidine compound ALC67 is a potent apoptosis-inducing agent with significant cytotoxic effects on cancer cells.
- ALC67 represents a promising lead compound for developing new anticancer therapies.
- The caspase-9 pathway activation mechanism offers insights into its therapeutic potential.
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