LIU Tingting,LIANG Longxin,XU Guang,et al.Mechanism of Toxicity Reduction of Psoralidin Combined with Echinatin[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(01):45-51.
LIU Tingting,LIANG Longxin,XU Guang,et al.Mechanism of Toxicity Reduction of Psoralidin Combined with Echinatin[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(01):45-51. DOI: 10.13422/j.cnki.syfjx.20221502.
Mechanism of Toxicity Reduction of Psoralidin Combined with Echinatin
To establish a model of inflammasome activation induced by psoralidin based on bone marrow-derived macrophages (BMDM) in mice, and to explore the immunomodulatory effects of psoralidin combined with echinatin.
Method
2
Lipopolysaccharide (LPS) and psoralidin were used to activate inflammasomes, and after 4 h LPS stimulation, echinatin (40 μmol·L
-1
) was administered for pre-protection for 1 h, followed by stimulation with psoralidin (10, 20, 40 μmol·L
-1
) for 4 h. The protein expression of Caspase-1 p20 in cell supernatant and precursor (pro)-Caspase-1 and pro-interleukin(IL)-1
β
in cell lysate were simultaneously detected by Western blot. Enzyme-linked immunosorbent assay (ELISA) was adopted to determine the content of IL-
β
and TNF-
α
in the supernatant of BMDM
.
Result
2
Western blot revealed that compared with the conditions in the control group, the maturation of psoralidin-induced pro-Caspase-1 and the secretion of IL-1
β
was inhibited by echinatin (
P
<
0.05,
P
<
0.01). ELISA showed that the production of IL-1
β
and
TNF-
α
was enhanced by psoralidin of different concentrations (
P
<
0.05,
P
<
0.01) compared with the condition in the control group. In addition, compared with the psoralidin group, the psoralidin combined with echinatin group reduced the secretion of IL-1
β
and
TNF-
α
(
P
<
0.01).
Conclusion
2
Echinatin could significantly inhibited the excessive immune-inflammatory response mediated by psoralidin, and thus achieve the effect of toxicity reduction. The present study explored the toxicity-reducing effect of psoralidin combined with echiantin, providing a basis for safe clinical application.
关键词
Keywords
references
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