Background： Psoriasis is a common immune-mediated inflammatory dermatosis. Generalized pustular psoriasis （GPP） is the severe and rare type of psoriasis. The association between tumor necrosis factor-alpha induced ...Background： Psoriasis is a common immune-mediated inflammatory dermatosis. Generalized pustular psoriasis （GPP） is the severe and rare type of psoriasis. The association between tumor necrosis factor-alpha induced protein 3 interacting protein 1 （TNIP1） gene and psoriasis was confirmed in people with multiple ethnicities. This study was to investigate the association between TNIP1 gene polymorphisms and pustular psoriasis in Chinese Hart population. Methods： Seventy-three patients with GPP, 67 patients with palmoplantar pustulosis （PPP）, and 476 healthy controls were collected from Chinese Hart population. Six single nucleotide polymorphisms （SNPs） of the TNIP1 gene, namely rs3805435, rs3792798, rs3792797, rs869976, rs 17728338, and rs999011 were genotyped by using polymerase chain reaction-ligase detection reaction. Statistical analyses were performed using the PLINK 1.07 package. Allele frequencies and genotyping frequencies for six SNPs were compared by using Chi-square test, odd ratio （OR） （including 95% confidence interval） were calculated. The haplotype analysis was conducted by Haploview software. Results： The frequencies of alleles of five SNPs were significantly different between the GPP group and the control group （P ≤ 7.22 × 10^-3）, especially in the GPP patients without psoriasis vulgaris （PsV）. In the haplotype analysis, the most significantly different haplotype was H4： ACGAAC, with 13.1% frequency in the GPP group but only 3.4% in the control group （OR = 4.16, P = 4.459 × 10^-7）. However, no significant difference in the allele frequencies was found between the PPP group and control group for each of the six SNPs （P 〉 0.05）. Conclusions： Polymorphisms in TNIP1 are associated with GPP in Chinese Han population. However, no association with PPP was found. These findings suggest that TNIPI might be a susceptibility gene for GPE展开更多
目的探讨系统性红斑狼疮(SLE)患者外周血单个核细胞(PBMCs)中TIPE2(tumor necrosis factor-α induced protein 8 like 2)表达及其与SLE疾病活动度的关系。方法连续入选20例SLE患者做为SLE组,20名门诊健康体检者为对照组。采用实时荧光...目的探讨系统性红斑狼疮(SLE)患者外周血单个核细胞(PBMCs)中TIPE2(tumor necrosis factor-α induced protein 8 like 2)表达及其与SLE疾病活动度的关系。方法连续入选20例SLE患者做为SLE组,20名门诊健康体检者为对照组。采用实时荧光定量聚合酶链反应(RT-PCR),检测两组PBMCs中TIPE2mRNA的表达水平。以ΔCt=Ct(待测基因)-Ct(内参基因)来代表基因表达水平。结果 SLE患者PBMCsTIPE2mRNA表达水平(ΔCt=4.04±1.02)明显低于对照组(ΔCt=8.06±1.13,P<0.01);SLE患者PBMCs中TIPE2mRNA的表达水平与SLE疾病活动评分指数(SLEDAI)呈负相关(r=-0.568,P<0.01),而与SLE其他临床指标(如C3、C4、血沉等)无相关性。结论 SLE患者PBMCsTIPE2基因表达下降,且其表达水平与SLE疾病活动评分指数负相关,TIPE2基因可能在SLE的发病过程中发挥了一定作用。展开更多
AIM:To study the effects of Helicobacter pylori(H. pylori)tumor necrosis factor-α(TNF)inducing protein (Tip-α)on cytokine expression and its mechanism. METHODS:We cloned Tip-αfrom the H.pylori strain 26695,transfor...AIM:To study the effects of Helicobacter pylori(H. pylori)tumor necrosis factor-α(TNF)inducing protein (Tip-α)on cytokine expression and its mechanism. METHODS:We cloned Tip-αfrom the H.pylori strain 26695,transformed Escherichia coli with an expression plasmid,and then confirmed the expression product by Western blotting.Using different concentrations of Tip-αthat affected SGC7901 and GES-1 cells at different times,we assessed cytokine levels using enzyme-linked immunosorbent assay.We blocked SGC7901 cells with pyrrolidine dithiocarbamate(PDTC),a specific inhibitor of nuclear factorκB(NF-κB).We then detected interleukin(IL)-1βand TNF-αlevels in SGC7901 cells. RESULTS:Western blot analysis using an anti-Tip-α antibody revealed a 23-kDa protein,which indicated that recombinant Tip-αprotein was recombined successfully.The levels of IL-1β,IL-8 and TNF-αwere sig-nificantly higher following Tip-αinterference,whether GES-1 cells or SGC-7901 cells were used(P<0.05).However,the levels of cytokines(including IL-1β,IL-8 and TNF-α)secreted by SGC-7901 cells were greater than those secreted by GES-1 cells following treatment with Tip-αat the same concentration and for the same duration(P<0.05).After blocking NF-κB with PDTC, the cells(GES-1 cells and SGC-7901 cells)underwent interference with Tip-α.We found that IL-1βand TNF-αlevels were significantly decreased compared to cells that only underwent Tip-αinterference(P<0.05). CONCLUSION:Tip-αplays an important role in cyto-kine expression through NF-κB.展开更多
基金grants from the National Natural Science Foundation of China，CAS "Light of West China" Program,Inner Mengolia Science and Technology Plan,the Youth Innovation Fund Project of Inner Mongolia Medical University，the Medical and Health Research Project of Inner Mongolia Health and Family Planning Commission，the Program for Young Talents of Science and Technology in Universities of Inner Mongolia Autonomous Region
文摘Background： Psoriasis is a common immune-mediated inflammatory dermatosis. Generalized pustular psoriasis （GPP） is the severe and rare type of psoriasis. The association between tumor necrosis factor-alpha induced protein 3 interacting protein 1 （TNIP1） gene and psoriasis was confirmed in people with multiple ethnicities. This study was to investigate the association between TNIP1 gene polymorphisms and pustular psoriasis in Chinese Hart population. Methods： Seventy-three patients with GPP, 67 patients with palmoplantar pustulosis （PPP）, and 476 healthy controls were collected from Chinese Hart population. Six single nucleotide polymorphisms （SNPs） of the TNIP1 gene, namely rs3805435, rs3792798, rs3792797, rs869976, rs 17728338, and rs999011 were genotyped by using polymerase chain reaction-ligase detection reaction. Statistical analyses were performed using the PLINK 1.07 package. Allele frequencies and genotyping frequencies for six SNPs were compared by using Chi-square test, odd ratio （OR） （including 95% confidence interval） were calculated. The haplotype analysis was conducted by Haploview software. Results： The frequencies of alleles of five SNPs were significantly different between the GPP group and the control group （P ≤ 7.22 × 10^-3）, especially in the GPP patients without psoriasis vulgaris （PsV）. In the haplotype analysis, the most significantly different haplotype was H4： ACGAAC, with 13.1% frequency in the GPP group but only 3.4% in the control group （OR = 4.16, P = 4.459 × 10^-7）. However, no significant difference in the allele frequencies was found between the PPP group and control group for each of the six SNPs （P 〉 0.05）. Conclusions： Polymorphisms in TNIP1 are associated with GPP in Chinese Han population. However, no association with PPP was found. These findings suggest that TNIPI might be a susceptibility gene for GPE
文摘目的探讨系统性红斑狼疮(SLE)患者外周血单个核细胞(PBMCs)中TIPE2(tumor necrosis factor-α induced protein 8 like 2)表达及其与SLE疾病活动度的关系。方法连续入选20例SLE患者做为SLE组,20名门诊健康体检者为对照组。采用实时荧光定量聚合酶链反应(RT-PCR),检测两组PBMCs中TIPE2mRNA的表达水平。以ΔCt=Ct(待测基因)-Ct(内参基因)来代表基因表达水平。结果 SLE患者PBMCsTIPE2mRNA表达水平(ΔCt=4.04±1.02)明显低于对照组(ΔCt=8.06±1.13,P<0.01);SLE患者PBMCs中TIPE2mRNA的表达水平与SLE疾病活动评分指数(SLEDAI)呈负相关(r=-0.568,P<0.01),而与SLE其他临床指标(如C3、C4、血沉等)无相关性。结论 SLE患者PBMCsTIPE2基因表达下降,且其表达水平与SLE疾病活动评分指数负相关,TIPE2基因可能在SLE的发病过程中发挥了一定作用。
文摘AIM:To study the effects of Helicobacter pylori(H. pylori)tumor necrosis factor-α(TNF)inducing protein (Tip-α)on cytokine expression and its mechanism. METHODS:We cloned Tip-αfrom the H.pylori strain 26695,transformed Escherichia coli with an expression plasmid,and then confirmed the expression product by Western blotting.Using different concentrations of Tip-αthat affected SGC7901 and GES-1 cells at different times,we assessed cytokine levels using enzyme-linked immunosorbent assay.We blocked SGC7901 cells with pyrrolidine dithiocarbamate(PDTC),a specific inhibitor of nuclear factorκB(NF-κB).We then detected interleukin(IL)-1βand TNF-αlevels in SGC7901 cells. RESULTS:Western blot analysis using an anti-Tip-α antibody revealed a 23-kDa protein,which indicated that recombinant Tip-αprotein was recombined successfully.The levels of IL-1β,IL-8 and TNF-αwere sig-nificantly higher following Tip-αinterference,whether GES-1 cells or SGC-7901 cells were used(P<0.05).However,the levels of cytokines(including IL-1β,IL-8 and TNF-α)secreted by SGC-7901 cells were greater than those secreted by GES-1 cells following treatment with Tip-αat the same concentration and for the same duration(P<0.05).After blocking NF-κB with PDTC, the cells(GES-1 cells and SGC-7901 cells)underwent interference with Tip-α.We found that IL-1βand TNF-αlevels were significantly decreased compared to cells that only underwent Tip-αinterference(P<0.05). CONCLUSION:Tip-αplays an important role in cyto-kine expression through NF-κB.
