中国免疫学杂志2024，Vol.40Issue(7)：1436-1440,5.DOI:10.3969/j.issn.1000-484X.2024.07.015
苦豆碱调节IL-6/JAK1/STAT3信号通路对结直肠癌细胞增殖、凋亡和免疫逃逸的影响
Effects of aloperine on proliferation,apoptosis and immune escape of colorectal cancer cells by regulating IL-6/JAK1/STAT3 signaling pathway
摘要
Abstract
Objective:To investigate the effects of aloperine(ALO)on cell behavior of colorectal cancer(CRC)cells through IL-6/tyrosine kinase 1(JAK1)/signal transducer and activator of transcription 3(STAT3)pathway.Methods:SW480 cells were grouped into CK group(normal culture of SW480 cells),ALO low-dose group(ALO-L group,0.2 mmol/L),ALO medium-dose group(ALO-M group,0.4 mmol/L),ALO high-dose group(ALO-H group,0.8 mmol/L)and ALO-H+activator(IL-6 activator recombinant human IL-6 protein)group(0.8 mmol/L+100 ng/ml).Proliferation of SW480 cells was detected by CCK-8 and plate cloning experi-ments;apoptosis of SW480 cells was detected by flow cytometry;Western blot was used to detect expressions of proliferating cell nu-clear antigen(PCNA),Bcl-2-associated X protein(Bax),IL-6,p-JAK1,p-STAT3 proteins in cells.After the above five groups of cells were co-cultured with natural killer cells NK-92MI,respectively,they were named as CK co-culture group,ALO-L co-culture group,ALO-M co-culture group,ALO-H co-culture group,and ALO-H+activator co-culture group,respectively.Levels of TNF-α and IFN-γ in supernatant and immune killing rate of NK-92MI in the co-culture system were detected.Results:Compared with CK group,OD450 value,clone formation rate,protein expressions of PCNA,IL-6,p-JAK1,p-STAT3 in SW480 cells in ALO-L group,ALO-M group and ALO-H group were decreased,while apoptosis rate and protein expression of Bax were increased,in a dose-dependent manner(P<0.05);compared with ALO-H group,OD450 value,clone formation rate,protein expressions of PCNA,IL-6,p-JAK1,p-STAT3 in SW480 cells in ALO-H+activator were increased,while apoptosis rate and protein expression of Bax were decreased(P<0.05);compared with CK co-culture group,levels of TNF-α and IFN-γ in supernatant of cells,and the immune killing rate of NK-92MI cells in ALO-L co-culture group,ALO-M co-culture group and ALO-H co-culture group were increased,and in a dose-dependent manner(P<0.05);compared with ALO-H co-culture group,levels of TNF-α and IFN-γ in supernatant of cells,and immune killing rate of NK-92MI cells in ALO-H+activator co-culture group were decreased(P<0.05).Conclusion:ALO may inhibit the proliferation,immune escape and promote apoptosis of SW480 cells by inhibiting IL-6/JAK1/STAT3 signaling pathway.关键词
苦豆碱/结直肠癌/白细胞介素-6/酪氨酸激酶1/信号转导和转录激活因子3通路/免疫逃逸/增殖Key words
Aloperine/Colorectal cancer/IL-6/JAK1/STAT3 pathway/Immune escape/Proliferation分类
医药卫生引用本文复制引用
伊亮,李伟东,王有,周宁..苦豆碱调节IL-6/JAK1/STAT3信号通路对结直肠癌细胞增殖、凋亡和免疫逃逸的影响[J].中国免疫学杂志,2024,40(7):1436-1440,5.基金项目
甘肃省科技厅项目(21YF5FA169). （21YF5FA169）
