Li-xin WANG, Wen-bin WU, Zi-hang XU, et al. Anti-tumor Effect of Astragaloside by Inducing M1 Macrophage Polarization[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(14): 19-24.
DOI:
Li-xin WANG, Wen-bin WU, Zi-hang XU, et al. Anti-tumor Effect of Astragaloside by Inducing M1 Macrophage Polarization[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(14): 19-24. DOI: 10.13422/j.cnki.syfjx.20190822.
Anti-tumor Effect of Astragaloside by Inducing M1 Macrophage Polarization
To investigate the effect of astragaloside on the macrophage polarization and the possible anti-tumor immunity mechanism of astragaloside.
Method:
2
The cytotoxic effect of different concentrations of astragaloside at different time points on macrophage was measured by methylthiazolyldiphenyl-tetrazolium bromide (MTT)
in order to choose the suitable concentration of astragaloside
macrophages were co-cultured with tumor cells at the ratio 1∶1
and the effect of astragaloside on macrophage-mediated lysis of tumor cells was performed by biophotonic cytotoxicity assay after the mixed cells were effected with 0.1 mg·L
-1
astragaloside for 24 h. Macrophages were dealt with 0.1 mg·L
-1
astragaloside for 24h
the expressions of CD16/32 and CD206 in macrophages were performed by flow cytometry
the mRNA expressions of macrophage inducible nitric oxide synthase (iNOS)
Arginine-1 (Arg-1)
interleukin-1
β
(IL-1
β
)
tumor necrosis factor-
α
(TNF-
α
)
interleukin-12 (IL-12)
interleukin-10 (IL-10) and transforming growth factor-
β
(TGF-
β
) were measured by Real-time PCR
the protein expressions of macrophage signal transducers and activators of transcription 1 (STAT1) and phosphorylation signal transducers and activators of transcription 1 (p-STAT1) were determined by Western blot.
Result:
2
Astragaloside had no effect on the viability of macrophages with 0.1 mg·L
-1
. Compared with control group
astragaloside obviously enhanced the macrophage-mediated lysis of tumor cells according to the biophotonic cytotoxicity assay
induced the M1 macrophage marker CD16/32 expression according to flow cytometry
increased the mRNA expressions of iNOS
IL-1
β
TNF-
α
and IL-12 according to the Real-time PCR
and promoted the phosphorylation of STAT1 in macrophages on the basis of Western blot.
Conclusion:
2
Astragaloside could induce M1 macrophage polarization by increasing the phosphorylation of STAT1
and initiate macrophage-related anti-tumor immunity response.
关键词
Keywords
references
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