1. Disruption of survivin protein expression by treatment with YM155 accelerates the resolution of neutrophilic inflammation.
- Author
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Fernandes DO, Machado JR, Beltrami VA, Santos ACPMD, Queiroz-Junior CM, Vago JP, Soriani FM, Amaral FA, Teixeira MM, Felix FB, and Pinho V
- Subjects
- Animals, Humans, Male, Mice, Uric Acid, Gout drug therapy, Gout pathology, Peritonitis drug therapy, Peritonitis chemically induced, Peritonitis metabolism, Peritonitis pathology, Peritonitis immunology, Inhibitor of Apoptosis Proteins metabolism, Inhibitor of Apoptosis Proteins antagonists & inhibitors, Naphthoquinones pharmacology, Naphthoquinones administration & dosage, Survivin metabolism, Survivin antagonists & inhibitors, Neutrophils drug effects, Neutrophils metabolism, Mice, Inbred BALB C, Imidazoles pharmacology, Imidazoles administration & dosage, Inflammation drug therapy, Inflammation metabolism, Inflammation chemically induced, Inflammation pathology, Apoptosis drug effects
- Abstract
Background and Purpose: Prolonged survival of neutrophils is essential for determining the progression and severity of inflammatory and immune-mediated disorders, including gouty arthritis. Survivin, an anti-apoptotic molecule, has been described as a regulator of cell survival. This study aims to examine the effects of YM155 treatment, a survivin selective suppressant, in maintaining neutrophil survival in vitro and in vivo experimental settings of neutrophilic inflammation., Experimental Approach: BALB/c mice were injected with monosodium urate (MSU) crystals and treated with YM155 (intra-articularly) at the peak of inflammatory response. Leukocyte recruitment, apoptosis neutrophil and efferocytosis were determined by knee joint wash cell morphology counting and flow cytometry. Resolution interval (Ri) was quantified by neutrophil infiltration, monitoring the amplitude and duration of the inflammation. Cytokine production was measured by ELISA. Mechanical hypernociception was assessed using an electronic von Frey aesthesiometer. Efferocytosis was evaluated in zymosan-induced neutrophilic peritonitis. Survivin and cleaved caspase-3 expression was determined in human neutrophils by flow cytometry., Key Results: Survivin was expressed in neutrophils during MSU-induced gout, and the treatment with YM155 reduced survivin expression and shortened Ri from ∼8 h observed in vehicle-treated mice to ∼5.5 h, effect accompanied by increased neutrophil apoptosis and efferocytosis, both crucial for the inflammation resolution. Reduced IL-1β and CXCL1 levels were also observed in periarticular tissue. YM155 reduced histopathological score and hypernociceptive response. In human neutrophils, lipopolysaccharide (LPS) increased survivin expression, whereas survivin inhibition with YM155 induced neutrophil apoptosis, with activation of caspase-3., Conclusions and Implications: Survivin may be a promising therapeutic target to control neutrophilic inflammation., (© 2024 British Pharmacological Society.)
- Published
- 2025
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