Microtubule Disruption Reduces Metastasis More Effectively Than Primary Tumor Growth
Overview
Authors
Affiliations
Clinical cancer imaging focuses on tumor growth rather than metastatic phenotypes. The microtubule-depolymerizing drug, Vinorelbine, reduced the metastatic phenotypes of microtentacles, reattachment and tumor cell clustering more than tumor cell viability. Treating mice with Vinorelbine for only 24 h had no significant effect on primary tumor survival, but median metastatic tumor survival was extended from 8 to 30 weeks. Microtentacle inhibition by Vinorelbine was also detectable within 1 h, using tumor cells isolated from blood samples. As few as 11 tumor cells were sufficient to yield 90% power to detect this 1 h Vinorelbine drug response, demonstrating feasibility with the small number of tumor cells available from patient biopsies. This study establishes a proof-of-concept that targeted microtubule disruption can selectively inhibit metastasis and reveals that existing FDA-approved therapies could have anti-metastatic actions that are currently overlooked when focusing exclusively on tumor growth.
VERU-111, an orally available tubulin inhibitor, suppresses ovarian tumor growth and metastasis.
Waddell S, Zhao G, Liu Z, Chen H, Zhang W, Wang Y J Pharmacol Exp Ther. 2025; 392(1):100006.
PMID: 39893008 PMC: 11808928. DOI: 10.1124/jpet.124.002298.
Ju J, Thompson K, Annis D, Mull M, Gilchrist D, Moriarty A Adv Sci (Weinh). 2024; 12(6):e2409260.
PMID: 39696759 PMC: 11809343. DOI: 10.1002/advs.202409260.
Wishart G, Templeman A, Hendry F, Miller K, Pailhes-Jimenez A Curr Issues Mol Biol. 2024; 46(1):773-787.
PMID: 38248352 PMC: 10814787. DOI: 10.3390/cimb46010050.
Kang D, Moriarty A, Wang Y, Thomas A, Hao J, Unger B Adv Sci (Weinh). 2023; 11(5):e2300509.
PMID: 37949677 PMC: 10837353. DOI: 10.1002/advs.202300509.
Isolation and Anticancer Progression Evaluation of the Chemical Constituents from Tutcher.
Zhao L, Xie W, Du Y, Xia Y, Liu K, Ku C Molecules. 2023; 28(16).
PMID: 37630417 PMC: 10457964. DOI: 10.3390/molecules28166165.