First total synthesis, antitumor evaluation and target identification of mornaphthoate E: A new tubulin inhibitor template acting on PI3K/Akt signaling pathway

Autor: Peipei Shan, Tao Ye, Ying-De Tang, Hui Song, Chao Wang, Kongkai Zhu, Feifei Yang, Shi-Lei Zhang, Pei-Wen Su, Shuanhu Gao, Hua Zhang
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Acta Pharmaceutica Sinica B, Vol 14, Iss 5, Pp 2177-2193 (2024)
Druh dokumentu: article
ISSN: 2211-3835
DOI: 10.1016/j.apsb.2024.02.012
Popis: Mornaphthoate E (MPE) is a prenylated naphthoic acid methyl ester isolated from the roots of a famous Chinese medicinal plant Morinda officinalis and shows remarkable cytotoxicity against several human tumor cell lines. In the current project, the first total synthesis of (±)-MPE was achieved in seven steps and 5.6% overall yield. Then the in vitro anti-tumor activity of MPE was first assessed for both enantiomers in two breast cancer cells, with the levoisomer exerting slightly better potency. The in vivo anti-tumor effect was further verified by applying the racemate in an orthotopic autograft mouse model. Notably, MPE exerted promising anti-metastasis activity both in vitro and in vivo and showed no obvious toxicity on mice at the therapeutic dosage. Mechanistic investigations demonstrated that MPE acted as a tubulin polymerization stabilizer and disturbed the dynamic equilibrium of microtubules via regulating PI3K/Akt signaling. In conclusion, our work has provided a new chemical template for the future design and development of next-generation tubulin-targeting chemotherapies.
Databáze: Directory of Open Access Journals