1. Design, synthesis, and in vivo and in vitro biological screening of pseudolaric acid B derivatives as potential anti-tumor agents.
- Author
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Xu Q, Deng H, Huang X, Liu JY, Chen GQ, Shen QK, Quan ZS, Guo HY, and Yin XM
- Subjects
- Humans, Animals, Structure-Activity Relationship, Mice, Molecular Structure, Dose-Response Relationship, Drug, Cell Line, Tumor, Mice, Inbred BALB C, Mice, Nude, Antineoplastic Agents pharmacology, Antineoplastic Agents chemical synthesis, Antineoplastic Agents chemistry, Cell Proliferation drug effects, Drug Design, Drug Screening Assays, Antitumor, Apoptosis drug effects, Diterpenes pharmacology, Diterpenes chemistry, Diterpenes chemical synthesis
- Abstract
Pseudolaric Acid B (PAB), a natural product with remarkable anti-tumor activity, is a starting point for new anticancer therapeutics. We designed and synthesized 27 PAB derivatives and evaluated their anti-proliferative activities against four cancer cell lines: MCF-7, HCT-116, HepG2, and A549. Compared with unmodified PAB, the PAB derivatives showed stronger anti-proliferative activity. The ability of compound D3 (IC
50 = 0.21 μM) to inhibit HCT-116 cells was approximately 5.3 times that of PAB (IC50 = 1.11 μM) and the antiproliferative action was unrelated to cytotoxicity (SI=20.38), indicating its superior safety profile (PAB; SI=0.95). Compound D3 effectively suppressed the EdU-positive rate and reduced colony formation, arrested HCT-116 cells in the S and G2/M phases and induced apoptosis. In vivo experiments further demonstrated low toxicity of compound D3 while suppressing tumor growth in mice. In summary, given its strong anti-proliferative effect and relative safety, further development of compound D3 is warranted., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Inc. All rights reserved.)- Published
- 2024
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