Abstract
The novel coronavirus disease (COVID-19), which is prevalent in the world, develops severe pneumonia, of which 30% have fatal acute respiratory distress and acute lung injury. At present, there is no established treatment method for ARDS, and it is desired to develop a therapeutic drug as soon as possible. While TauCl has been reported to have anti-inflammatory effects on culture cells, little information is available concerning in vivo experiments. In the present study, we evaluated the anti-inflammatory effect of taurine chloramine (TauCl), a taurine derivative, against LPS-induced pneumonia in mouse. The mice were pretreated with TauCl intraperitoneally before intratracheal administration of LPS. Additionally, we evaluated the effect of taurine treatment by maintaining the mice on drinking water containing 0.5% taurine. Two days after LPS injection, body weight was decreased by 9.5 %, while lung weight was increased due to the infiltration of inflammatory cells; TauCl attenuated the gain in lung weight. LPS-induced acute pneumonia caused an increase in cytokine/chemokine mRNA expression, including that of IL-1β, -6, -17, TNF-α, and MCP-1. However, TauCl treatment attenuated IL-6 expression, but not that of the others although the induction of plasma IL-6 tended to be reduced by TauCl treatment. Importantly, a similar effect against LPS-induced acute lung inflammation was confirmed by taurine pretreatment. These findings suggest that TauCl treatment partially prevents IL-6 production induced by acute pneumonia in vivo.
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Abbreviations
- TauCl:
-
taurine chloramine
- LPS:
-
lipopolysaccharide
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Nguyen, K.H., Murakami, S., Schaffer, S.W., Ito, T. (2022). Examination of Taurine Chloramine and Taurine on LPS-Induced Acute Pulmonary Inflammatory in Mice. In: Schaffer, S.W., El Idrissi, A., Murakami, S. (eds) Taurine 12. Advances in Experimental Medicine and Biology, vol 1370. Springer, Cham. https://doi.org/10.1007/978-3-030-93337-1_2
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