Inhibitory effects of fenbendazole, an anthelmintics, on lipopolysaccharide-activated mouse bone marrow cells

Park, S.R.; Joo, H.G.

Inhibitory effects of fenbendazole, an anthelmintics, on lipopolysaccharide-activated mouse bone marrow cells

2021

Park, S.R. | Joo, H.G.

Fenbendazole (FBZ) is a commonly used anthelmintic in veterinary medicine that has recently been found to have anticancer effects in humans. On the other hand, few studies have examined the anti-inflammatory effects of FBZ, and its mechanism is unknown. In this study, mouse bone marrow cells (BMs) were treated with lipopolysaccharide (LPS), a representative inflammation-inducing substance, to generate a situation similar to osteomyelitis in vitro. The effect of FBZ on inflammatory BMs was examined by measuring the metabolic activity, surface marker expression, cell nuclear morphology, and mitochondrial membrane potential (MMP) of BMs. FBZ decreased the metabolic activity and MMP of LPS-treated BMs. Annexin Ⅴ-fluorescein isothiocyanate/propidium iodide staining and Hoechst 33342 staining showed that FBZ reduced the number of viable cells and induced the cell death of inflammatory BMs. In addition, FBZ reduced the proportion of granulocytes more than B lymphocytes in LPS-treated BMs. Overall, FBZ induces cell death by destabilizing the MMP of LPS-induced inflammatory BMs. FBZ can play a role as an anthelmintic and anticancer agent and an anti-inflammatory agent.

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