Aim To investigate the effects of JAK inhibitor （SHR0302） on adjuvant-induced arthritis （AA） rats and the partial mechanisms focused on T, B lymphocyte subsets through JAK1-STAT3 pathway, including Thl7, Treg, tot...Aim To investigate the effects of JAK inhibitor （SHR0302） on adjuvant-induced arthritis （AA） rats and the partial mechanisms focused on T, B lymphocyte subsets through JAK1-STAT3 pathway, including Thl7, Treg, total B cells and memory B cells. Methods Animals were divided randomly into 6 groups including normal control, AA, SHR0302 （0.3, 1.0, 3.0 nag · kg^-1, ig） and MTX （0.5 nag · kg^-1 , ig） . The effects of SHR0302 on AA rats by evaluating arthritis index, arthritis global assessment and paw swelling degree, histopathology of joint and spleen, inflammatory cytokine and antibody production in serum. We examined the proliferation of T, B and FLS by CCK8 kit; Thl7, Treg, total B and memory B cell proportion was measured by flow cytometry; Cytokines TNF-αβ, IL-1β, IL-10, IL-17 and antibody IgG1, IgG2a levels in serum were measured by ELISA kits; The ex- pression of p-JAK1 and p-STAT3 was measured by Western blot analysis. Results SHR0302 suppressed the se- verity of AA rats by attenuating the arthritis index, arthritis global assessment and paw swelling degree, and allevia- ted histopathology of spleen and joint of AA rats. SHR0302 can inhibit the proliferation of T, B and FLS, and down-regulated cytokines TNF-α, IL-1β, IL-17 and antibody IgG1, IgG2a levels, and suppressed the proportion of Thl7 and total B, and inhibited JAK1-STAT3 phosphorylation; There was no significant effect on Treg function and memory B cell proportion. Conclusion SHR0302 may attenuate the severity of AA rats, partially through signifi- cantly reducing Thl7 function and total B cell proportion by inhibiting JAK1-STAT3 phosphorylation.展开更多
目的 :检测支气管哮喘小鼠外周血单个核细胞(PBMC)及肺泡灌洗液(BALF)炎性细胞中T细胞免疫球蛋白与黏蛋白域蛋白3(Tim-3)的表达及与Th17/Treg细胞的关系,探讨其在哮喘发病中的作用。方法 :建立小鼠哮喘动物模型,分为哮喘组和对照组。收...目的 :检测支气管哮喘小鼠外周血单个核细胞(PBMC)及肺泡灌洗液(BALF)炎性细胞中T细胞免疫球蛋白与黏蛋白域蛋白3(Tim-3)的表达及与Th17/Treg细胞的关系,探讨其在哮喘发病中的作用。方法 :建立小鼠哮喘动物模型,分为哮喘组和对照组。收集各组小鼠PBMC及BALF炎性细胞,应用实时荧光定量PCR检测PBMCs及BALF炎性细胞中的Tim-3 m RNA水平,流式细胞仪检测CD4细胞中IL-17(CD4+IL-17+)比例反映Th17水平,CD4细胞中CD4+CD25+Fox P3+反映Treg细胞水平;酶联免疫吸附法(ELISA)检测PBMCs上清液中IL-10、IL-17、TGF-β水平,分析Tim-3的表达与Th17/Treg水平的相关性。结果:哮喘组PBMCs及BALF炎性细胞中Tim-3 m RNA水平、CD4+IL-17+表达及Th17/Treg比例、IL-17均高于对照组(P<0.05),而CD4+CD25+Fox P3+水平、IL-10显著低于对照组。哮喘组PBMCs及BALF炎性细胞中的Tim-3 m RNA表达分别与CD4+IL-17+表达及Th17/Treg比例呈正相关(r=0.76,r=0.87,r=0.71,r=0.82,P<0.05),而与CD4+CD25+Fox P3+的表达呈负相关(r=-0.84,r=-0.79,P<0.05)。结论:哮喘小鼠PBMCs及BALF炎性细胞中Tim-3 m RNA水平显著升高,Tim-3可能在哮喘发生发展中起着重要作用并与Th17/Treg失衡有关。展开更多
文摘Aim To investigate the effects of JAK inhibitor （SHR0302） on adjuvant-induced arthritis （AA） rats and the partial mechanisms focused on T, B lymphocyte subsets through JAK1-STAT3 pathway, including Thl7, Treg, total B cells and memory B cells. Methods Animals were divided randomly into 6 groups including normal control, AA, SHR0302 （0.3, 1.0, 3.0 nag · kg^-1, ig） and MTX （0.5 nag · kg^-1 , ig） . The effects of SHR0302 on AA rats by evaluating arthritis index, arthritis global assessment and paw swelling degree, histopathology of joint and spleen, inflammatory cytokine and antibody production in serum. We examined the proliferation of T, B and FLS by CCK8 kit; Thl7, Treg, total B and memory B cell proportion was measured by flow cytometry; Cytokines TNF-αβ, IL-1β, IL-10, IL-17 and antibody IgG1, IgG2a levels in serum were measured by ELISA kits; The ex- pression of p-JAK1 and p-STAT3 was measured by Western blot analysis. Results SHR0302 suppressed the se- verity of AA rats by attenuating the arthritis index, arthritis global assessment and paw swelling degree, and allevia- ted histopathology of spleen and joint of AA rats. SHR0302 can inhibit the proliferation of T, B and FLS, and down-regulated cytokines TNF-α, IL-1β, IL-17 and antibody IgG1, IgG2a levels, and suppressed the proportion of Thl7 and total B, and inhibited JAK1-STAT3 phosphorylation; There was no significant effect on Treg function and memory B cell proportion. Conclusion SHR0302 may attenuate the severity of AA rats, partially through signifi- cantly reducing Thl7 function and total B cell proportion by inhibiting JAK1-STAT3 phosphorylation.
文摘目的 :检测支气管哮喘小鼠外周血单个核细胞(PBMC)及肺泡灌洗液(BALF)炎性细胞中T细胞免疫球蛋白与黏蛋白域蛋白3(Tim-3)的表达及与Th17/Treg细胞的关系,探讨其在哮喘发病中的作用。方法 :建立小鼠哮喘动物模型,分为哮喘组和对照组。收集各组小鼠PBMC及BALF炎性细胞,应用实时荧光定量PCR检测PBMCs及BALF炎性细胞中的Tim-3 m RNA水平,流式细胞仪检测CD4细胞中IL-17(CD4+IL-17+)比例反映Th17水平,CD4细胞中CD4+CD25+Fox P3+反映Treg细胞水平;酶联免疫吸附法(ELISA)检测PBMCs上清液中IL-10、IL-17、TGF-β水平,分析Tim-3的表达与Th17/Treg水平的相关性。结果:哮喘组PBMCs及BALF炎性细胞中Tim-3 m RNA水平、CD4+IL-17+表达及Th17/Treg比例、IL-17均高于对照组(P<0.05),而CD4+CD25+Fox P3+水平、IL-10显著低于对照组。哮喘组PBMCs及BALF炎性细胞中的Tim-3 m RNA表达分别与CD4+IL-17+表达及Th17/Treg比例呈正相关(r=0.76,r=0.87,r=0.71,r=0.82,P<0.05),而与CD4+CD25+Fox P3+的表达呈负相关(r=-0.84,r=-0.79,P<0.05)。结论:哮喘小鼠PBMCs及BALF炎性细胞中Tim-3 m RNA水平显著升高,Tim-3可能在哮喘发生发展中起着重要作用并与Th17/Treg失衡有关。
