炎性复合体是存在于胞浆中的一组多蛋白复合体,它能够活化胱天蛋白酶(caspase)-1,后者介导IL(interleukin)-1β、IL-18和IL-33等促炎因子的成熟与释放。NALP1(NACHT leucine-rich-repeat protein 1)也称NLRP1,是最早被鉴定出来的具有明...炎性复合体是存在于胞浆中的一组多蛋白复合体,它能够活化胱天蛋白酶(caspase)-1,后者介导IL(interleukin)-1β、IL-18和IL-33等促炎因子的成熟与释放。NALP1(NACHT leucine-rich-repeat protein 1)也称NLRP1,是最早被鉴定出来的具有明确配体的炎性复合体之一,它参与多种炎症反应和细胞凋亡的调节作用。此外,还有研究发现NLRP1在急性白血病的发生发展及诱导骨髓造血干细胞凋亡等血液系统疾病中也发挥着重要作用。本文将对NLRP1的结构、活化机制、调控及在造血系统中的作用进行综述。展开更多
Objective:To investigate the role of NLRP3 and NLRP1 inflammasomes signaling pathways in rheumatoid arthritis(RA).Methods:A total of 36 patients with RA were selected,peripheral blood mononuclear cell(PBMC)and granulo...Objective:To investigate the role of NLRP3 and NLRP1 inflammasomes signaling pathways in rheumatoid arthritis(RA).Methods:A total of 36 patients with RA were selected,peripheral blood mononuclear cell(PBMC)and granulocyte were separated from venous blood.RT-qPCR method was used to detect the expression level and diversity of NLRP3 and NLRP1 in PBMC and granulocyte mRNA in patieuts with RA.and detect the mRNA expression of downstream factor IL-1β.The correlation between RA and the expression of NLRP3 aud NLRP1 was analyzed.Normal 30 cases were set as control group.Results:Expression levels of NLRP1.and caspase-1mRNA in PBMC of RA group were significautly lower than those of control group(P<0.05).while there was no significant differeuee in expression levels of NLRP3,ASC.IL-1βmRNA between these two groups(P>0.05);NLRP3,caspase-1,and ASC mRNA expression in granulocyte of RA patients were significantly lower than those in control group(P<0.05).There was no currelation between rheumatoid factor and expression levels of NLRP3.ASC.caspase-1 mRNA in RA group(P>0.05);NLRP1,IL-1βmRNA expression level had a negative corrlation with anti-rheunatoid factor antibody(P=0.0332,0.0340).Conclusions:NLRP3 and NLRP1 inflammasomes signaling pathways are involved in RA inflammatory reaction process as protective factors,and play an important role in RA inflammatory mechanisms.展开更多
文摘炎性复合体是存在于胞浆中的一组多蛋白复合体,它能够活化胱天蛋白酶(caspase)-1,后者介导IL(interleukin)-1β、IL-18和IL-33等促炎因子的成熟与释放。NALP1(NACHT leucine-rich-repeat protein 1)也称NLRP1,是最早被鉴定出来的具有明确配体的炎性复合体之一,它参与多种炎症反应和细胞凋亡的调节作用。此外,还有研究发现NLRP1在急性白血病的发生发展及诱导骨髓造血干细胞凋亡等血液系统疾病中也发挥着重要作用。本文将对NLRP1的结构、活化机制、调控及在造血系统中的作用进行综述。
基金supported by National Natural Science Fund of China(31300156)
文摘Objective:To investigate the role of NLRP3 and NLRP1 inflammasomes signaling pathways in rheumatoid arthritis(RA).Methods:A total of 36 patients with RA were selected,peripheral blood mononuclear cell(PBMC)and granulocyte were separated from venous blood.RT-qPCR method was used to detect the expression level and diversity of NLRP3 and NLRP1 in PBMC and granulocyte mRNA in patieuts with RA.and detect the mRNA expression of downstream factor IL-1β.The correlation between RA and the expression of NLRP3 aud NLRP1 was analyzed.Normal 30 cases were set as control group.Results:Expression levels of NLRP1.and caspase-1mRNA in PBMC of RA group were significautly lower than those of control group(P<0.05).while there was no significant differeuee in expression levels of NLRP3,ASC.IL-1βmRNA between these two groups(P>0.05);NLRP3,caspase-1,and ASC mRNA expression in granulocyte of RA patients were significantly lower than those in control group(P<0.05).There was no currelation between rheumatoid factor and expression levels of NLRP3.ASC.caspase-1 mRNA in RA group(P>0.05);NLRP1,IL-1βmRNA expression level had a negative corrlation with anti-rheunatoid factor antibody(P=0.0332,0.0340).Conclusions:NLRP3 and NLRP1 inflammasomes signaling pathways are involved in RA inflammatory reaction process as protective factors,and play an important role in RA inflammatory mechanisms.
