Anthocyanin,as a typical food bioactive molecule,is capable of reversing inflammatory,oxidative and allergic condition thus contributes to intestinal health.We were wondering whether anthocyanin has influence on the i...Anthocyanin,as a typical food bioactive molecule,is capable of reversing inflammatory,oxidative and allergic condition thus contributes to intestinal health.We were wondering whether anthocyanin has influence on the infiltration of inflammatory cells into the intestinal mucosa and thus help enhancing intestinal barrier which could be damaged in some metabolic diseases.In this study,the influence of anthocyanin(administered orally)on the alterations(including structure and permeability)of the intestinal mucosa in mice in response to a high fat-high cholesterol(HFHC)diet was investigated.Primary T helper 17(Th17)cells were isolated from mouse intestine tissues to observe the modulatory role of anthocyanin through the transcription phosphorylated STAT 3(p-STAT3).The results indicated that anthocyanin significantly alleviated HFHC-induced impairment in the intestinal structures and permeability in a dose-dependent manner;moreover,anthocyanin appeared to inhibit HFHC induced the expression of p-STAT3,thereby disturbing Th17 cell differentiation.In high-fat diet(HFD,cholesterol level non-modified)-challenged mice selective p-STAT3 inhibitor significantly reversed the effects of anthocyanin,which were decreased amount of interleukin(IL)-17A(produced and released from Th17 cells)and the protected intestinal structure/function.In summary,the results of this study suggest that anthocyanin may attenuate the damage of intestinal barrier in HFHC mice through regulating intestinal STAT3-Th17-IL-17A signal transduction pathway.展开更多
目的探讨过敏性鼻炎患者血清辅助性T细胞17(Th17)/调节性T细胞(Treg)值与血清甲壳质酶蛋白-40(YKL-40)水平及维生素D水平的相关性。方法选择过敏性鼻炎患者99例(观察组)及同期体检健康者99例(对照组),采集空腹外周静脉血9 m L,采用酶联...目的探讨过敏性鼻炎患者血清辅助性T细胞17(Th17)/调节性T细胞(Treg)值与血清甲壳质酶蛋白-40(YKL-40)水平及维生素D水平的相关性。方法选择过敏性鼻炎患者99例(观察组)及同期体检健康者99例(对照组),采集空腹外周静脉血9 m L,采用酶联免疫吸附试验检测外周血25(OH)D_(3),采用流式细胞术检测外周血CD4^(+)IL-17+Th17细胞、CD4^(+)CD25^(+)Foxp3^(+)Treg细胞占CD4^(+)T细胞的百分比,采用双抗体夹心酶联免疫吸附法测定血清YKL-40,比较两组CD4^(+)IL-17+Th17细胞、CD4^(+)CD25^(+)Foxp3^(+)Treg细胞占CD4^(+)T细胞的百分比、YKL-40及维生素D水平。结果观察组血清25(OH)D_(3)水平和CD4^(+)CD25^(+)Foxp3^(+)Treg细胞占CD4^(+)T细胞的百分比低于对照组(P均<0.05),CD4^(+)IL-17+Th17细胞占CD4^(+)T细胞的百分比、Th17/Treg值及血清YKL-40水平高于对照组(P均<0.05)。观察组血清Th17/Treg值与YKL-40水平呈正相关(r=0.429,P<0.05),与血清25(OH)D_(3)水平呈负相关(r=-0.735,P<0.05);血清YKL-40与25(OH)D_(3)水平呈负相关(r=-0.450,P<0.05)。结论过敏性鼻炎患者血清25(OH)D_(3)水平降低,YKL-40水平升高,二者异常表达可能与Th17/Treg值失调有关,共同参与过敏性鼻炎的发生发展。展开更多
目的探讨柴胡软坚消瘿颗粒对肝郁脾虚型桥本甲状腺炎大鼠辅助性T细胞1(helper T cell 1,Th1)/辅助性T细胞2(helper T cell 2,Th2)、辅助性T细胞17(helper T cell 17,Th17)/调节性T细胞(regulatory T cell,Treg)平衡的影响。方法随机数...目的探讨柴胡软坚消瘿颗粒对肝郁脾虚型桥本甲状腺炎大鼠辅助性T细胞1(helper T cell 1,Th1)/辅助性T细胞2(helper T cell 2,Th2)、辅助性T细胞17(helper T cell 17,Th17)/调节性T细胞(regulatory T cell,Treg)平衡的影响。方法随机数字表法将48只大鼠分为正常组(12只)和造模组(36只),采用甲状腺球蛋白注射结合高碘饮水+慢性束缚+游泳过劳+饮食失节制备肝郁脾虚桥本甲状腺炎大鼠模型,共33只大鼠造模成功,将造模成功大鼠随机分为模型组、金水宝片[0.45 g/(kg·d)]和柴胡软坚消瘿颗粒组[11.43 g/(kg·d)],每组11只,连续给药8周。观察大鼠一般情况,实验前后记录大鼠体重、摄食量、粪便含水量,实验结束后旷场实验分析大鼠行为;末次给药后12小时,取血,流式细胞术检测Th1、Th2、Th17、Treg细胞百分比;酶联免疫吸附法检测大鼠血清甲状腺球蛋白抗体(thyroglobulin antibody,TGAb)、甲状腺过氧化酶抗体(thyroidperoxidase antibody,TPOAb)、游离三碘甲状腺原氨酸(free triiodothyronine,FT3)、游离甲状腺素(freethyroxine,FT4)、促甲状腺激素(thyroid stimulating hormone,TSH)、γ-干扰素(γ-interferon,IFN-γ)、白细胞介素10(interleukin 10,IL-10)、白细胞介素17(interleukin 17,IL-17)、白细胞介素35(interleukin35,IL-35)的水平;取血后分离大鼠甲状腺组织,苏木素—伊红染色法检测大鼠甲状腺组织病理形态;蛋白免疫印迹法检测大鼠甲状腺组织T盒子转录因子(T-box transcription factor,T-bet)、GATA结合蛋白3(GATA binding protein 3,GATA3)、叉头盒蛋白p3(forkhead box protein p3,Foxp3)、维A酸相关孤独受体γt(retinoid related orphan receptorγt,RORγt)的表达。结果与正常组相比,模型组大鼠甲状腺损伤严重,血清TPOAb、TGAb、FT3、FT4水平、Th1、Th17、Th1/Th2、Th17/Treg、IFN-γ、IL-17水平及蛋白T-bet、RORγt表达显著升高(P<0.01),TSH、Th2、Treg、IL-10、IL-35水平及蛋白GATA3、Foxp3表达显著降低(P<0.01);与模型组相比,金水宝片组、柴胡软坚消瘿颗粒组大鼠甲状腺损伤减轻,血清TPOAb、TGAb、FT3、FT4水平、Th1、Th17、Th1/Th2、Th17/Treg、IFN-γ、IL-17水平及蛋白T-bet、RORγt表达显著降低(P<0.01),TSH水平、Th2、Treg、IL-10、IL-35水平及蛋白GATA3、Foxp3表达显著升高(P<0.01)。结论柴胡软坚消瘿颗粒对肝郁脾虚桥本甲状腺炎大鼠治疗有一定的疗效,可能与调节Th1/Th2及Th17/Treg细胞平衡有关。展开更多
基金supported by the National Natural Science Foundation of China(81973022 and 81730090)。
文摘Anthocyanin,as a typical food bioactive molecule,is capable of reversing inflammatory,oxidative and allergic condition thus contributes to intestinal health.We were wondering whether anthocyanin has influence on the infiltration of inflammatory cells into the intestinal mucosa and thus help enhancing intestinal barrier which could be damaged in some metabolic diseases.In this study,the influence of anthocyanin(administered orally)on the alterations(including structure and permeability)of the intestinal mucosa in mice in response to a high fat-high cholesterol(HFHC)diet was investigated.Primary T helper 17(Th17)cells were isolated from mouse intestine tissues to observe the modulatory role of anthocyanin through the transcription phosphorylated STAT 3(p-STAT3).The results indicated that anthocyanin significantly alleviated HFHC-induced impairment in the intestinal structures and permeability in a dose-dependent manner;moreover,anthocyanin appeared to inhibit HFHC induced the expression of p-STAT3,thereby disturbing Th17 cell differentiation.In high-fat diet(HFD,cholesterol level non-modified)-challenged mice selective p-STAT3 inhibitor significantly reversed the effects of anthocyanin,which were decreased amount of interleukin(IL)-17A(produced and released from Th17 cells)and the protected intestinal structure/function.In summary,the results of this study suggest that anthocyanin may attenuate the damage of intestinal barrier in HFHC mice through regulating intestinal STAT3-Th17-IL-17A signal transduction pathway.
文摘目的探讨过敏性鼻炎患者血清辅助性T细胞17(Th17)/调节性T细胞(Treg)值与血清甲壳质酶蛋白-40(YKL-40)水平及维生素D水平的相关性。方法选择过敏性鼻炎患者99例(观察组)及同期体检健康者99例(对照组),采集空腹外周静脉血9 m L,采用酶联免疫吸附试验检测外周血25(OH)D_(3),采用流式细胞术检测外周血CD4^(+)IL-17+Th17细胞、CD4^(+)CD25^(+)Foxp3^(+)Treg细胞占CD4^(+)T细胞的百分比,采用双抗体夹心酶联免疫吸附法测定血清YKL-40,比较两组CD4^(+)IL-17+Th17细胞、CD4^(+)CD25^(+)Foxp3^(+)Treg细胞占CD4^(+)T细胞的百分比、YKL-40及维生素D水平。结果观察组血清25(OH)D_(3)水平和CD4^(+)CD25^(+)Foxp3^(+)Treg细胞占CD4^(+)T细胞的百分比低于对照组(P均<0.05),CD4^(+)IL-17+Th17细胞占CD4^(+)T细胞的百分比、Th17/Treg值及血清YKL-40水平高于对照组(P均<0.05)。观察组血清Th17/Treg值与YKL-40水平呈正相关(r=0.429,P<0.05),与血清25(OH)D_(3)水平呈负相关(r=-0.735,P<0.05);血清YKL-40与25(OH)D_(3)水平呈负相关(r=-0.450,P<0.05)。结论过敏性鼻炎患者血清25(OH)D_(3)水平降低,YKL-40水平升高,二者异常表达可能与Th17/Treg值失调有关,共同参与过敏性鼻炎的发生发展。
文摘目的观察CD4+IL-17+辅助性T细胞(Th17)及Th17/CD4+CD2+5Foxp3+调节性T细胞(Treg)在博来霉素皮下注射致小鼠肺纤维化模型外周血及肺组织的表达及意义。方法 20只雌性BALB/c小鼠随机分为模型组和对照组各10只:模型组皮下注射博莱霉素4周,对照组相同条件下注射0.1 mL PBS。采用HE染色和Masson's染色观察两组肺组织炎症和纤维化的病理改变;流式细胞术检测两组肺组织及外周血Th17、Treg及Th17/Treg的表达;应用酶联免疫吸附试验检测两组血清IL-17水平;免疫荧光定量PCR法检测两组肺实质组织中IL-17和维甲酸相关孤独受体(RORγt)的mRNA的表达,并分析上述各指标的相互关系。结果模型组肺部纤维化评分、肺组织炎症程度和羟脯氨酸的含量均显著高于对照组(P均<0.01);外周血和肺组织Th17、Th17/Treg及外周血IL-17含量较对照组均显著增高(P均<0.01);肺实质RORγt和IL-17 mRNA水平较对照组明显增高(P均<0.05)。相关性分析结果显示,外周血和肺组织Th17及Th17/Treg、外周血IL-17的水平与肺组织羟脯氨酸水平、肺部纤维化评分、肺组织炎症反应均呈显著正相关(P均<0.01)。结论肺纤维化模型Th17及Th17/Treg表达均增高;Th17可能通过分泌IL-17参与肺纤维化的发病,Th17/Treg失衡可能通过加重肺纤维化免疫炎症,促进肺部胶原纤维的沉积,在肺纤维化的发病发挥重要作用。
文摘目的探讨柴胡软坚消瘿颗粒对肝郁脾虚型桥本甲状腺炎大鼠辅助性T细胞1(helper T cell 1,Th1)/辅助性T细胞2(helper T cell 2,Th2)、辅助性T细胞17(helper T cell 17,Th17)/调节性T细胞(regulatory T cell,Treg)平衡的影响。方法随机数字表法将48只大鼠分为正常组(12只)和造模组(36只),采用甲状腺球蛋白注射结合高碘饮水+慢性束缚+游泳过劳+饮食失节制备肝郁脾虚桥本甲状腺炎大鼠模型,共33只大鼠造模成功,将造模成功大鼠随机分为模型组、金水宝片[0.45 g/(kg·d)]和柴胡软坚消瘿颗粒组[11.43 g/(kg·d)],每组11只,连续给药8周。观察大鼠一般情况,实验前后记录大鼠体重、摄食量、粪便含水量,实验结束后旷场实验分析大鼠行为;末次给药后12小时,取血,流式细胞术检测Th1、Th2、Th17、Treg细胞百分比;酶联免疫吸附法检测大鼠血清甲状腺球蛋白抗体(thyroglobulin antibody,TGAb)、甲状腺过氧化酶抗体(thyroidperoxidase antibody,TPOAb)、游离三碘甲状腺原氨酸(free triiodothyronine,FT3)、游离甲状腺素(freethyroxine,FT4)、促甲状腺激素(thyroid stimulating hormone,TSH)、γ-干扰素(γ-interferon,IFN-γ)、白细胞介素10(interleukin 10,IL-10)、白细胞介素17(interleukin 17,IL-17)、白细胞介素35(interleukin35,IL-35)的水平;取血后分离大鼠甲状腺组织,苏木素—伊红染色法检测大鼠甲状腺组织病理形态;蛋白免疫印迹法检测大鼠甲状腺组织T盒子转录因子(T-box transcription factor,T-bet)、GATA结合蛋白3(GATA binding protein 3,GATA3)、叉头盒蛋白p3(forkhead box protein p3,Foxp3)、维A酸相关孤独受体γt(retinoid related orphan receptorγt,RORγt)的表达。结果与正常组相比,模型组大鼠甲状腺损伤严重,血清TPOAb、TGAb、FT3、FT4水平、Th1、Th17、Th1/Th2、Th17/Treg、IFN-γ、IL-17水平及蛋白T-bet、RORγt表达显著升高(P<0.01),TSH、Th2、Treg、IL-10、IL-35水平及蛋白GATA3、Foxp3表达显著降低(P<0.01);与模型组相比,金水宝片组、柴胡软坚消瘿颗粒组大鼠甲状腺损伤减轻,血清TPOAb、TGAb、FT3、FT4水平、Th1、Th17、Th1/Th2、Th17/Treg、IFN-γ、IL-17水平及蛋白T-bet、RORγt表达显著降低(P<0.01),TSH水平、Th2、Treg、IL-10、IL-35水平及蛋白GATA3、Foxp3表达显著升高(P<0.01)。结论柴胡软坚消瘿颗粒对肝郁脾虚桥本甲状腺炎大鼠治疗有一定的疗效,可能与调节Th1/Th2及Th17/Treg细胞平衡有关。
