Pyrazolone Compounds as Promising Anticancer Agents for Colorectal Cancer: Synthesis, Antiproliferative Activity, and
Ali Gholamian Moghaddam1, Atchimnaidu Siriki1, Debajyoti Majumder2
1School of Sciences, College of Arts, Education and Sciences, University of Louisiana at Monroe, Monroe, Louisiana, USA.
Chemmedchem
|April 3, 2026
Summary
A new pyrazolone derivative, PL-13, shows potent anticancer activity against colorectal cancer (CRC) by inducing apoptosis and inhibiting cell migration. This small molecule selectively targets cancer cells, offering a promising avenue for CRC therapy development.
Area of Science:
- Medicinal Chemistry
- Cancer Biology
- Pharmacology
Background:
- Colorectal cancer (CRC) presents a significant global health burden, with existing treatments facing challenges like drug resistance and side effects.
- Small molecule therapeutics offer advantages such as oral bioavailability and targeted intracellular pathway modulation for cancer treatment.
Purpose of the Study:
- To design, synthesize, and evaluate novel pyrazolone derivatives for antiproliferative activity against colorectal cancer (CRC) cell lines.
- To identify and characterize a lead compound with potent and selective anticancer properties.
Main Methods:
- Microwave-assisted synthesis of pyrazolone derivatives.
- In vitro antiproliferative assays using CRC cell lines (HCT-116, WiDr) and a noncancerous colon cell line (CRL-1459).
- Functional assays (colony formation, wound healing), Western blot analysis, kinome profiling, and molecular docking.
Main Results:
- Pyrazolone derivative PL-13 demonstrated significant cytotoxicity against CRC cells while sparing normal colon cells.
- PL-13 inhibited cell proliferation and migration, induced apoptosis via the intrinsic mitochondrial pathway (cleaved caspase-9, PARP), and modulated autophagy (LC3A/B).
- Kinome profiling and molecular docking identified FLT3 as a selective target for PL-13, with favorable binding energy.
Conclusions:
- PL-13 is a potent and selective small molecule inhibitor with promising anticancer activity against colorectal cancer.
- The compound acts by inducing apoptosis and modulating autophagy, with FLT3 identified as a key molecular target.
- PL-13 represents a valuable lead compound for further development in colorectal cancer therapy.
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