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Anti-inflammatory Effects of Sweroside on LPS-Induced ALI in Mice Via Activating SIRT1

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Abstract

Sweroside, as one of the main components of Swertia L. in Gentianaceae, has the effect of clearing heat and detoxifying. In previous studies, sweroside has been reported to have anti-inflammatory effect on LPS-induced inflammation by alleviating NF-κB signaling pathway. In this paper, we investigate the anti-inflammatory effects of sweroside by establishing LPS-induced acute lung injury (ALI) model in mice. Experimental results showed that sweroside could reduce the wet-to-dry ratio of the lung and inhibit MPO activity. In addition, it turned out that sweroside reduced pathological changes in lung tissue and the numbers of inflammatory cells. Moreover, sweroside significantly reduced the levels of inflammatory cytokines and down-regulated the NF-κB signaling pathway. And the results demonstrated that sweroside could increase the expression of SIRT1, and the protective effects of sweroside on LPS-induced ALI were reversed by SIRT1 inhibitor EX-527. In conclusion, sweroside can protect LPS-induced ALI mice through inhibiting inflammation.

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Data availability

The data used to support the findings of this study are available from the corresponding author upon request.

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Funding

This work was supported by the grant for Key Research and Development Project of Shandong Province (2019GSF108265).

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Authors and Affiliations

  1. Department of Otorhinolaryngology, Qilu Hospital of Shandong University, Jinan, China

    Juan Wang, Xiaolan Cai, Dapeng Lei & Xinliang Pan

  2. NHC Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, China

    Juan Wang, Xiaolan Cai, Dapeng Lei & Xinliang Pan

  3. Department of Pharmacy, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China

    Rui Ma

  4. Institute of Biochemical and Biotechnological Drugs, School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, China

    Fengshan Wang

Authors
  1. Juan Wang
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  2. Xiaolan Cai
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  3. Rui Ma
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  4. Dapeng Lei
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  5. Xinliang Pan
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Contributions

Juan Wang and Fengshan Wang designed the experiment; Juan Wang, Xiaolan Cai, Rui Ma, and Dapeng Lei did the experiment; Xinliang Pan analyzed the data; Juan Wang and Xiaolan Cai revised the paper; Juan Wang wrote the paper.

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Correspondence to Juan Wang or Fengshan Wang.

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All the experimental protocols in this study were approved by the Institutional Animal Care and Use Committee of Shandong University. All authors consent to participate this research.

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All authors declare no competing interests.

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Wang, J., Cai, X., Ma, R. et al. Anti-inflammatory Effects of Sweroside on LPS-Induced ALI in Mice Via Activating SIRT1. Inflammation 44, 1961–1968 (2021). https://doi.org/10.1007/s10753-021-01473-4

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  • DOI: https://doi.org/10.1007/s10753-021-01473-4

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