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Influence of Oridonin on the Icilling Acitivity of NK-92 MI Cells Targeting Cell THP1 and Its Mechanism / 中国实验血液学杂志
Journal of Experimental Hematology ; (6): 1374-1379, 2019.
Article in Chinese | WPRIM | ID: wpr-775711
ABSTRACT
OBJECTIVE@#To investigate the influence of oridonin on the killing activity of NK-92 MI cells targeting THP1 and the related mechanism.@*METHODS@#The killing activity of NK-92 MI to THP1 before and after oridonin treatment was detected by LDH release assay; the expression of natural killer cell ligands activating receptor D (NKG2D, including MICA, MICB, ULBP1, ULBP2 and ULBP3) was detected by real-time quantitative polymerase chain reaction (qRT-PCR) and Western blot respectively; the expression of cytokine TNF-α, TNF-β and IFN-γ in the co-culture supernatant of NK-92 MI cells and THP1 cells were measured by ELISA.@*RESULTS@#The killing efficiency after oridonin treatment at different effector-target ratio (11, 51, 101) was all significantly up-regulated in comparison with that before oridonin treatment (P<0.05). QRT-PCR and Western blot showed that the expressions of mRNA and protein levels of MICB, ULBP1, ULBP2 increased to varying degree (P<0.05), but the expression levels of MICA and ULBP3 were not statistically significant between experimental group and control group (P>0.05). ELISA results indicated that IFN-γ and TNF-β release were significantly increased after oridonin treatment (P<0.05), however, the TNF-α release was not statistically different in comparison with control group (P>0.05).@*CONCLUSION@#Oridonin can significantly improve killing efficiency of NK-92 MI on THP1, that might be related with up-regulation of MICB, ULBP1 and ULBP2 expression and promotion of IFN-γ and TNF-β release.
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Full text: Available Index: WPRIM (Western Pacific) Main subject: Pharmacology / Histocompatibility Antigens Class I / Cell Line, Tumor / Diterpenes, Kaurane / GPI-Linked Proteins Limits: Humans Language: Chinese Journal: Journal of Experimental Hematology Year: 2019 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Pharmacology / Histocompatibility Antigens Class I / Cell Line, Tumor / Diterpenes, Kaurane / GPI-Linked Proteins Limits: Humans Language: Chinese Journal: Journal of Experimental Hematology Year: 2019 Type: Article