Cumulative antitumor effect of bismuth lipophilic nanoparticles and cetylpyridinium chloride in inhibiting the growth of lung cancer

Claudia María García-Cuellar, Rene Hernández-Delgadillo, Jesús Alejandro Torres-Betancourt, Juan Manuel Solis-Soto, Irene Meester, Yesennia Sánchez-Pérez, Nayely Pineda-Aguilar, Sergio Eduardo Nakagoshi-Cepeda, Rosa Isela Sánchez-Nájera, María Argelia Akemi Nakagoshi-Cepeda, Shankararaman Chellam, Claudio Cabral-Romero

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Objective: To determine the combined antitumor effect of bismuth lipophilic nanoparticles (BisBAL NP) and cetylpyridinium chloride (CPC) on human lung tumor cells. Material and methods: The human lung tumor cells A549 were exposed to 1–100 µM BisBAL NP or CPC, either separately or in a 1:1 combination. Cell viability was measured with the PrestoBlue assay, the LIVE/DEAD assay, and fluorescence microscopy. The integrity and morphology of cellular microtubules were analyzed by immunofluorescence. Results: A 24-h exposure to 1 µM solutions reduced A549 growth with 21.5% for BisBAL NP, 70.5% for CPC, and 92.4% for the combination (p < 0.0001), while a 50 µM BisBAL NP/CPC mixture inhibited cell growth with 99% (p < 0.0001). BisBAL NP-curcumin conjugates were internalized within 30 min of exposure and could be traced within the nucleus of tumor cells within 2 h. BisBAL NP, but not CPC, interfered with microtubule organization, thus interrupting cell replication, similar to the action mechanism of docetaxel. Conclusion: The growth inhibition of A549 human tumor cells by BisBAL NP and CPC was cumulative as of 1 µM. The BisBAL NP/CPC combination may constitute an innovative and cost-effective alternative for treating human lung cancer.

Original languageEnglish
Pages (from-to)22808000231161177
JournalJournal of Applied Biomaterials and Functional Materials
Volume21
DOIs
Publication statusPublished - 1 Jan 2023

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