Noscapine-bile acid hybrids as novel anticancer agents

Area of Science:

• Medicinal Chemistry
• Organic Synthesis
• Cancer Biology

Background:

• Noscapine derivatives and bile acids are scaffolds with potential therapeutic applications.
• Developing novel cytotoxic agents is crucial for cancer treatment.

Purpose of the Study:

• To design and synthesize novel noscapinoid-triterpene conjugate derivatives.
• To evaluate the antiproliferative and cytotoxic activities of these new compounds against various cancer cell lines.

Main Methods:

• Synthesis of 20 novel noscapinoid-triterpene conjugates using noscapine derivatives and bile acids.
• Antiproliferative assays against PC3, A549, HepG2, Caki-1, U138MG, and MRC5 cell lines.
• Western blot analysis to assess α-tubulin and β-actin levels; cellular assays for migration, cell-cycle, and apoptosis.

Main Results:

• Eight potent cytotoxic compounds (7e-7i, 7k, 7m, 7o) were identified with >80% cell viability reduction.
• Compounds 7e and 7f demonstrated high cytotoxicity against Caki-1 cells (IC50: 260 nM and 350 nM).
• Hit compounds reduced α-tubulin and β-actin; 7e and 7f inhibited migration, induced G1 cell-cycle arrest, and triggered apoptosis in A549 cells.

Conclusions:

• Noscapinoid-triterpene conjugates represent a promising class of cytotoxic agents.
• Compounds 7e and 7f show significant potential as anticancer therapeutics, warranting further investigation.
• The mechanism involves disruption of cytoskeletal proteins, inhibition of cell migration, and induction of apoptosis.