Cancer is a serious threat to public health and the economy worldwide.Statistical data from the World Health Organization(WHO)in 2018 have demonstrated that lung cancer is the most commonly diagnosed cancer(11.6%of th...Cancer is a serious threat to public health and the economy worldwide.Statistical data from the World Health Organization(WHO)in 2018 have demonstrated that lung cancer is the most commonly diagnosed cancer(11.6%of the total cases)and the leading cause of cancer death(18.4%of the total cancer deaths),closely followed bygastric cancer(5.7%and 8.2%),and liver cancer(4.7%and 8.2%).展开更多
目的探讨胶原诱导的大鼠类风湿性关节炎(RA)模型中,Th22和白细胞介素-22(IL-22)的水平及其可能的机制。方法构建胶原诱导的大鼠RA模型后,流式细胞术检测Th22细胞,Real-time PCR检测IL-22 m R N A表达水平,ELISA检测IL-22蛋白表达水平;用...目的探讨胶原诱导的大鼠类风湿性关节炎(RA)模型中,Th22和白细胞介素-22(IL-22)的水平及其可能的机制。方法构建胶原诱导的大鼠RA模型后,流式细胞术检测Th22细胞,Real-time PCR检测IL-22 m R N A表达水平,ELISA检测IL-22蛋白表达水平;用IL-22封闭抗体中和R A大鼠体内IL-22后,CCK-8实验检测R AFLS细胞增殖,R eal-time PCR检测IL-22和STAT3 m R N A表达水平,Western blot检测STAT3蛋白表达水平。结果与对照组比较,RA大鼠全血中的Th22细胞和血清IL-22的表达显著增加(P<0.01);用IL-22封闭抗体中和R A大鼠体内IL-22后,与对照组比较,R A大鼠血清IL-22显著下降(P<0.01),R AFLS细胞增殖能力下降(P<0.01),R AFLS细胞中STAT3基因和蛋白水平的表达显著较少(P<0.01)。结论R A大鼠模型中,Th22细胞通过分泌过多的IL-22刺激STAT3信号途径,从而提升R AFLS细胞的增殖能力,参与大鼠RA的发病。展开更多
Interleukin(IL)-22,a member of the IL-10 cytokine family,plays critical roles in tissue repair and host defense.IL-22 binds to its hetereodimeric receptor(R)composed of IL-22R1 and IL-10R2 and activates downstream sig...Interleukin(IL)-22,a member of the IL-10 cytokine family,plays critical roles in tissue repair and host defense.IL-22 binds to its hetereodimeric receptor(R)composed of IL-22R1 and IL-10R2 and activates downstream signaling,including Signal transducer and activator of transcription 3(STAT3)pathways.IL-22 promotes the expression of survival genes in a STAT3-dependent manner.IL-22R1 expression is restricted mainly in epithelial cells while IL-10R2 is ubiquitously expressed in almost all cell types.In the liver,IL-22R1 is expressed in hepatocytes,liver progenitor cells,hepatic stellate cells and liver cancer cells.IL-22 protects the liver in various liver damage models and promotes liver regeneration after liver injury.IL-22 also helps to resolve liver fibrosis by inducing hepatic stellate cell senescence.IL-22 is considered a pro-inflammatory cytokine in viral hepatitis although it does not directly act on immune cells.IL-22 is reported to be involved in the development of liver cancer and in regulating energy metabolism.Studies on IL-22 in liver inflammation,injury and repair will provide valuable information to clarify IL-22 as a potential candidate for treating liver injury and fibrosis.展开更多
基金supported by grants from the Natural Science Foundation of Hubei Province[2019CFB756]the Fundamental Research Funds for the Central Universities[WUT:2020IB029]。
文摘Cancer is a serious threat to public health and the economy worldwide.Statistical data from the World Health Organization(WHO)in 2018 have demonstrated that lung cancer is the most commonly diagnosed cancer(11.6%of the total cases)and the leading cause of cancer death(18.4%of the total cancer deaths),closely followed bygastric cancer(5.7%and 8.2%),and liver cancer(4.7%and 8.2%).
文摘目的探讨胶原诱导的大鼠类风湿性关节炎(RA)模型中,Th22和白细胞介素-22(IL-22)的水平及其可能的机制。方法构建胶原诱导的大鼠RA模型后,流式细胞术检测Th22细胞,Real-time PCR检测IL-22 m R N A表达水平,ELISA检测IL-22蛋白表达水平;用IL-22封闭抗体中和R A大鼠体内IL-22后,CCK-8实验检测R AFLS细胞增殖,R eal-time PCR检测IL-22和STAT3 m R N A表达水平,Western blot检测STAT3蛋白表达水平。结果与对照组比较,RA大鼠全血中的Th22细胞和血清IL-22的表达显著增加(P<0.01);用IL-22封闭抗体中和R A大鼠体内IL-22后,与对照组比较,R A大鼠血清IL-22显著下降(P<0.01),R AFLS细胞增殖能力下降(P<0.01),R AFLS细胞中STAT3基因和蛋白水平的表达显著较少(P<0.01)。结论R A大鼠模型中,Th22细胞通过分泌过多的IL-22刺激STAT3信号途径,从而提升R AFLS细胞的增殖能力,参与大鼠RA的发病。
基金This work was in supported by the National Natural Science Foundation of China(grant number:81100311,81470879/H0318 to S.Yin)and intramural program of USA National Institute on Alcohol Abuse and Alcoholism(NIAAA),National Institutes of Health(NIH).
文摘Interleukin(IL)-22,a member of the IL-10 cytokine family,plays critical roles in tissue repair and host defense.IL-22 binds to its hetereodimeric receptor(R)composed of IL-22R1 and IL-10R2 and activates downstream signaling,including Signal transducer and activator of transcription 3(STAT3)pathways.IL-22 promotes the expression of survival genes in a STAT3-dependent manner.IL-22R1 expression is restricted mainly in epithelial cells while IL-10R2 is ubiquitously expressed in almost all cell types.In the liver,IL-22R1 is expressed in hepatocytes,liver progenitor cells,hepatic stellate cells and liver cancer cells.IL-22 protects the liver in various liver damage models and promotes liver regeneration after liver injury.IL-22 also helps to resolve liver fibrosis by inducing hepatic stellate cell senescence.IL-22 is considered a pro-inflammatory cytokine in viral hepatitis although it does not directly act on immune cells.IL-22 is reported to be involved in the development of liver cancer and in regulating energy metabolism.Studies on IL-22 in liver inflammation,injury and repair will provide valuable information to clarify IL-22 as a potential candidate for treating liver injury and fibrosis.
