Antitumor activity of amino acid derivatives in the primary screening

Area of Science:

• Medicinal Chemistry
• Pharmacology
• Cancer Biology

Background:

• Amino acid derivatives represent a promising class of compounds for cancer therapy.
• Developing novel agents with improved efficacy and reduced toxicity is crucial for oncology.

Purpose of the Study:

• To synthesize and evaluate a library of approximately 350 amino acid derivatives for their antitumor activity.
• To identify specific derivatives with significant potential for cancer treatment.

Main Methods:

• Synthesis of 350 amino acid derivatives.
• In vitro and in vivo testing against four tumor systems: mouse leukemia SR-61, Ehrlich ascites carcinoma, ascites sarcoma-180, and rat ascites hepatoma (AH-60C).
• Evaluation of life prolongation and tumor growth inhibition.

Main Results:

• 29 out of 350 derivatives demonstrated significant antitumor effects in primary screening.
• Five compounds (A-91, A-144, A-145, A-192, A-195) showed notable activity in prolonging survival and inhibiting tumor growth, particularly in Ehrlich ascites carcinoma models.
• These five compounds were observed to inhibit the biosynthesis of macromolecules, including DNA, RNA, and proteins, within tumor cells.

Conclusions:

• Five novel amino acid derivatives exhibit promising antitumor activity.
• The mechanism of action involves the inhibition of macromolecule biosynthesis, suggesting a targeted approach to cancer therapy.
• Further investigation is warranted to elucidate the complete mechanism of action and optimize these compounds for clinical application.