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1.
目的:探讨Th22及其细胞因子在斑秃患者外周血中的表达及其临床意义,分析T淋巴细胞在斑秃发病机制中的作用。方法选取上海市闵行区中心医院2015年1月至2016年5月收治的38例斑秃患者作为研究对象,设为斑秃组;同时取同期健康体检38例作为健康对照组,用流式细胞仪检测Th22细胞水平,用酶联免疫吸附检测血清中IL?22、IL?17的水平。结果斑秃组外周血Th22、Th17、IL?17+IL?22+CD4+、IFN?γ+IL?22+CD4+T细胞表达水平均高于健康对照组(P<0.01)。斑秃组血清IL?22、IL?17水平均高于健康对照组(P<0.05);与轻型斑秃患者和稳定期患者相比,重型斑秃和活动期患者Th22、Th17、IL?17+IL?22+CD4+、IFN?γ+IL?22+CD4+T细胞及血清IL?22、IL?17的表达进一步升高(P<0.05)。结论 Th22及其细胞因子可能参与斑秃的发生、发展、预后。  相似文献   

2.
目的研究儿童斑秃患者外周血Th17细胞及白细胞介素(IL)-17的变化,探讨其在儿童斑秃患者发病中的作用。方法采用流式细胞术检测儿童斑秃患者外周血Th17细胞的比例,采用酶联免疫吸附测定法(ELISA)测定培养上清液中IL-17表达水平,以健康儿童作为对照。结果儿童斑秃患者外周血与健康儿童比较,外周血Th17细胞比例、IL-17水平增高(P<0.05);重度儿童斑秃患者与轻度儿童斑秃患者比较,外周血Th17细胞比例及IL-17水平增高(P<0.05);稳定期儿童斑秃患者与活动期儿童斑秃患者外周血比较,外周血Th17细胞比例、IL-17水平增高(P<0.05)。结论 Th17细胞及IL-17可能在儿童斑秃的发生及发展过程中发挥重要作用。  相似文献   

3.
目的研究不同严重程度特应性皮炎(AD)患者Th22细胞及白细胞介素(IL)-22的变化,探讨其在AD发病中的作用。方法采用流式细胞术检测不同严重程度AD患者外周血Th22细胞的比例,采用酶联免疫吸附试验(ELISA)测定外周血中IL-22表达水平,以健康成人作为对照。结果轻中度AD患者与正常人比较,外周血Th22细胞比例、IL-22水平增高(P0.05);重度AD患者与正常人比较,外周血Th22细胞比例及IL-22水平明显增高(P0.01);重度AD患者与轻度AD患者比较,外周血Th22细胞比例及IL-22水平增高(P0.05);重度AD患者与中度AD患者比较,外周血Th22细胞比例及IL-22水平增高(P0.05)。结论 Th22细胞及IL-22与AD的严重程度呈正相关。  相似文献   

4.
目的:检测寻常型银屑病患者外周血Th17 细胞及相关细胞因子水平.方法:采用流式细胞分析法检测35 例寻常型银屑病患者和健康对照组外周血Th17 细胞,并分析与CD4+T 细胞比值;ELISA 法检测外周血IL-17 、IL-23 水平.结果:银屑病患者组外周血Th17/CD4+T 细胞比值为4.73% ± 0.78%,显著高于对照组2.52% ± 0.37%,差异有统计学意义(P<0.01) ;银屑病患者外周血IL-17 和IL-23 水平亦明显高于对照组(P<0.01).患者外周血IL-17 水平与IL-23 水平呈正相关(P<0.01).结论:Th17 细胞可能参与了寻常型银屑病的发生与发展.  相似文献   

5.
目的研究不同严重程度特应性皮炎患者Th17细胞及白细胞介素(IL)-17A、IL-17F的变化,探讨其在特应性皮炎发病中的作用。方法采用流式细胞术检测不同严重程度特应性皮炎患者外周血Th17细胞的比例,采用ELISA测定培养上清液中IL-17A、IL-17F表达水平,以健康成人作为对照。结果轻度AD患者与正常人比较,外周血Th17细胞比例、IL-17A水平增高(P<0.05);中度AD患者与正常人比较,外周血Th17细胞比例及IL-17A水平明显增高(P<0.01);重度AD患者与正常对照组比较,IL-17F水平增高(P<0.05);中度AD患者与轻度AD患者比较,外周血Th17细胞比例及IL-17A水平增高(P<0.05);重度AD患者与中度AD患者比较,外周血Th17细胞比例及IL-17A水平增高(P<0.05)。结论 Th17细胞及IL-17A、IL-17F可能在AD的发生及发展过程中发挥重要作用。  相似文献   

6.
目的 分析Th17细胞与斑秃病程、病情等的关系.方法 分别抽取斑秃组和健康对照组的外周血,流式细胞仪检测Th17细胞的比例,用SPSS16.0进行统计分析.结果 斑秃组60例外周血中Th17细胞占CD4+T细胞的比例(1.33%±0.74%)显著高于30例健康对照组(0.91%±0.54%,P< 0.01).初发斑秃患者Th17细胞比例显著高于复发患者(P<0.05),活动期高于非活动期(P<0.05),病程≤6个月者高于病程>6个月者(P<0.01),而头皮脱发面积≤50%者与脱发面积>50%及全秃和普秃者比较差异无统计学意义.结论 外周血Th17细胞的水平与斑秃活动性、疾病复发及病程有关.  相似文献   

7.
8.
目的探讨白细胞介素22(IL-22)在湿疹发病机制中的作用。方法急性和慢性湿疹患者各20例,正常对照组10例,采用链霉素抗生物素-过氧化物酶连接(SP)法,检测IL-22在表皮及真皮细胞胞质中的表达。结果 IL-22在正常皮肤组织、急性、慢性湿疹表皮角质形成细胞及真皮浸润淋巴细胞胞质中均有不同程度的表达,IL-22在慢性湿疹中的表达明显高于正常皮肤组织及急性湿疹(P〈0.05)。结论 IL-22可能在湿疹的慢性阶段发病中发挥一定的作用。  相似文献   

9.
目的 探讨窄谱中波紫外线(NB-UVB)在银屑病治疗中的作用机制。 方法 42例银屑病患者仅用NB-UVB照射治疗20次,治疗前及治愈患者分别进行标本采集及皮损面积和严重程度指数(PASI)评分;采用酶联免疫吸附试验(ELISA)测定患者治疗前后外周血IL-17和IL-22水平的变化情况,并与20例健康对照比较,同时利用RT-PCR法检测10例患者治疗前后皮肤组织中IL-17和IL-22 mRNA表达水平的差异,并与10例健康对照进行对比分析。 结果 银屑病患者外周血中IL-17(34.26 ± 10.05 ng/L) 和IL-22(13.72 ± 4.45 ng/L)水平明显高于健康对照组(分别为16.34 ± 4.73 ng/L和5.03 ± 1.84 ng/L),均P < 0.01。患者皮损IL-17 mRNA(13.43 ± 2.12)和IL-22 mRNA(16.53 ± 2.65)表达水平明显高于健康对照组(分别为5.26 ± 0.87和7.72 ± 2.13),均P < 0.01。银屑病患者PASI与外周血中IL-17和IL-22水平呈正相关(r值分别为0.76和0.70,均P < 0.05),与皮损中IL-17和IL-22水平亦呈正相关(r值分别为0.65和0.68,均P < 0.05)。42例银屑病患者经NB-UVB照射治疗20次后,15例治愈,且治愈后外周血及皮损中IL-17和IL-22 mRNA及蛋白水平、PASI均明显低于治疗前组,均P < 0.05。 结论 NB-UVB照射治疗银屑病有效的机制之一可能与抑制患者外周血及皮损组织中IL-17及IL-22水平有关。  相似文献   

10.
目的 了解药疹患者治疗前后血清中Th22细胞相关因子及补体相关指标表达水平的变化,探索其在药疹发生发展中的可能作用。方法 35例药疹患者,以1∶1的比例匹配性别、年龄一致的健康对照者,分别采集药疹患者治疗前后及对照组外周血5 ml。采用酶联免疫吸附试验(ELISA)和流式液相多重蛋白定量技术(CBA)检测血清中白细胞介素22(IL?22)、IL?13、肿瘤坏死因子α(TNF?α)及补体蛋白C3a、C4a、C5a。结果 治疗前,药疹患者血清中IL?22[(40.85 ± 14.56) ng/L]、IL?13[(869.94 ± 463.39) ng/L]、TNF?α[(1.03 ± 0.64) ng/L]及补体C3a[(55.21 ± 32.98) ng/L]、C4a[(285.11 ± 123.91) ng/L]、C5a表达水平[(279.68 ± 127.72) ng/L]明显高于对照组(分别为29.09 ± 8.66、372.92 ± 151.75、0.44 ± 0.31、42.44 ± 14.26、237.00 ± 63.57和215.98 ± 65.38 ng/L),差异均有统计学意义(t值分别为5.549、6.071、4.321、2.832、2.257、2.495,均P < 0.05)。治疗后,药疹患者血清IL?22[(32.72 ± 11.77) ng/L]、IL?13[(456.21 ± 123.22) ng/L]、TNF?α[(0.64 ± 0.39) ng/L]、C3a[(45.47 ± 21.11) ng/L]、C4a[(241.86 ± 84.12) ng/L]、C5a表达水平[(239.61 ± 103.51) ng/L]均低于治疗前,差异均有统计学意义(t值分别为4.443、5.197、3.572、3.213、2.728、4.772,均P ≤ 0.01),且除IL?22、IL?13水平仍高于对照组外(P < 0.05),TNF?α及补体C3a、C4a、C5a水平与对照组差异无统计学意义(均P > 0.05)。相关性分析显示,药疹患者治疗前血清补体C3a与C4a(r = 0.660)、C5a(r = 0.404),C4a与C5a(r = 0.501)表达水平呈正相关,均P < 0.05,IL?22表达水平与补体C3a水平呈负相关(r = -0.490,P = 0.005),与TNF?α表达水平呈正相关(r = 0.573,P = 0.005)。结论 Th22细胞相关细胞因子及补体活化在药疹发生发展过程中可能起重要作用,且IL?22可能参与补体蛋白的调控。  相似文献   

11.
T细胞因子在斑秃发病中的作用   总被引:1,自引:0,他引:1  
目的研究T细胞因子与斑秃发病的关系,比较活动期和稳定期斑秃患者血清T细胞因子的变化情况,并探讨斑秃患者的Th1和Th2免疫功能状况。方法107例斑秃患者,根据临床表现分为活动期和稳定期,采用夹心抗体酶联免疫吸附试验法(Sandwich,ELISA)检测活动期和稳定期组斑秃患者血清的IFN-γ、IL-2、IL-4、IL-10和IL-16水平,并分析脱发严重程度与血清细胞因子的关系,采用单因素方差分析和LSD检验。结果稳定期组血清IFN-γ水平显著高于健康对照组(P<0.05),活动期组血清IFN-γ水平与健康对照组间的差异无统计学意义(P>0.05);IL-2、IL-16水平比较,活动期组、稳定期组、健康对照组间的差异无统计学意义(P>0.05);IL-4、IL-10水平比较,稳定期组显著低于对照组,活动期组显著低于稳定期组,组间差异均有统计学意义(P<0.05);随着脱发面积占头皮面积百分比增加,患者血清IFN-γ升高(P均<0.05),IL-2、4、10、16水平的改变无明显统计学意义(P>0.05)。结论IFN-γ参与斑秃稳定期免疫反应,可能与诱导斑秃发病无关;IL-4和IL-10与病情活动有关;IL-2和IL-16可能与斑秃发病无关;IFN-γ可能与斑秃的严重程度有关。  相似文献   

12.
BackgroundWe found microRNA (miR)-1246 to be significantly differentially expressed between severe active alopecia areata (AA) patients and healthy individuals.ObjectiveTo explore the role and mechanism of miR-1246 in severe AA.MethodsExpression of miR-1246, dual-specific tyrosine phosphorylation-regulated kinase 1A (DYRK1A), and nuclear factor of activated T cells 1c (NFATc1) in peripheral CD4+ T cells and in scalp tissues of patients were detected using RT-qPCR, Western blot, and immunohistochemistry assays. Peripheral CD4+ T cells from the AA patients were transfected with lentiviral vectors overexpressing miR-1246. RT-qPCR and Western blot analysis were used to measure mRNA or protein expression of retinoic-acid-receptor-related orphan nuclear receptor gamma (ROR-γt), interleukin (IL)-17, DYRK1A, NFATc1, and phosphorylated NFATc1. Flow cytometry was used to assay the CD4+IL-17+ cells proportion. ELISA was used to measure cytokine levels.ResultsmiR-1246 levels decreased and DYRK1A and NFATc1 mRNA levels significantly increased in the peripheral CD4+ T cells and scalp tissues of severe active AA samples. NFATc1 protein expression was also significantly increased in the peripheral CD4+ T cells but not in the scalp tissues. NFATc1 positive cells were mainly distributed among infiltrating inflammatory cells around hair follicles. In peripheral CD4+ T cells of severe active AA, overexpression of miR-1246 resulted in significant downregulation of DYRK1A, NFATc1, ROR-γt, and IL-17 mRNA and phosphorylated NFATc1 protein, as well as a decrease in the CD4+IL-17+ cells proportion and the IL-17F level.ConclusionmiR-1246 can inhibit NFAT signaling and Th17 cell activation, which may be beneficial in the severe AA treatment.  相似文献   

13.

Background

Alopecia areata is marked by autoimmune assault on the hair follicle resulting in hair loss. T helper 17 cell subset has important roles in protecting the host against extracellular pathogens, however, also promotes inflammatory pathology in autoimmune disease, and it expresses both interleukin (IL)-17A and IL-17F, which can signal via the IL-17 receptor A.

Objective

To investigate the significance of IL17A and IL17RA gene polymorphisms in the susceptibility to alopecia areata.

Methods

We conducted case-control association study of 238 alopecia areata patients and 270 matched healthy controls. Allele frequency of total 2 single nucleotide polymorphims in the IL17A gene and 4 single nucleotide polymorphims in the IL17RA gene were studied. The statistical analyses were performed according to onset age, the presence of familyhistory, clinical subtypes, and presence of nail involvement or body hair involvement.

Results

One single nucleotide polymorphim (rs879577) of IL17RA gene showed significant difference between alopecia areata patients group and controls group (p= 0.0288). One single nucleotide polymorphim (rs4819554) of IL17RA gene showed significant difference between the early onset and late onset alopecia areata (p=0.0421).

Conclusion

IL17RA gene polymorphism might contribute to the increased susceptibility to alopecia areata in Korean population, and IL17RA gene polymorphism may be associated with onset age.  相似文献   

14.
自身反应性T细胞与斑秃   总被引:1,自引:0,他引:1  
斑秃的病因尚未完全清楚,但近年来多种研究表明,斑秃的发病与自身免疫有关,自身反应性T细胞在斑秃的发病中起着关键作用。综述自身反应性T细胞逃逸外周耐受、从外周血向毛囊迁移,及其介导斑秃发病的证据。研究斑秃自身反应性T细胞,有助于阐明斑秃的发病机制以及寻找有效及有针对性的治疗措施。  相似文献   

15.
目的:检测寻常性银屑病(PV)患者外周血Th17、 Th22的水平及相关因子IL-17、IL-22 、IL-6的血清水平。方法: PASI评分评估患者病情,采用流式细胞术检测40例PV患者和30例健康对照者外周血Th17和Th22细胞,ELISA法检测血清中IL-17、IL-22和IL-6水平。结果: PV患者Th17细胞及Th22细胞,血清IL-17、IL-22及血清IL-6的水平明显高于健康对照组比较(P均<0.01),且与PASI呈正相关(P<0.05)。结论:Th17和Th22可能参与银屑病的发病。  相似文献   

16.
BackgroundAlopecia areata (AA) is an autoimmune disease characterized by chronic inflammation, the pathogenesis of which is unknown. Stress is believed to play a role; however, evidence remains insufficient. A recent study showed that substance P (SP) damaged hair follicles by causing neurogenic inflammation, activating perifollicular mast cells, and inducing keratinocyte apoptosis.ObjectiveWe aimed at studying the role of SP in AA pathogenesis. We investigated the SP levels in the lesional scalp tissues and serum. We also studied the effect of SP on the inflammatory response and hair growth in the outer root sheath (ORS) cells.MethodsWe compared the serum levels of SP in 58 AA patients and 28 healthy subjects. Then, we checked the expression of SP and SP receptor, neurokinin-1 receptor (NK-1R) in the scalps of AA patients and healthy controls using immunohistochemical staining. Finally, we analyzed the mRNA expression of inflammatory cytokines and hair growth-related factors in ORS cells.ResultsSP and NK-1R expression were markedly higher in the hair follicles and interfollicular epidermis of the scalp lesions of AA patients. However, there was no statistically significant difference in serum SP levels between controls and patients, regardless of the type of alopecia. SP significantly increased the mRNA expression of inflammatory cytokines and decreased hair growth-related growth factors in ORS cells, but the results were not dramatic.ConclusionSP triggered a localized micro-inflammation in lesional hair follicles, provoked an inflammatory response, and inhibited hair growth, thereby confirming the pathogenic role of SP in AA.  相似文献   

17.
斑秃发病机制的实验研究进展   总被引:1,自引:0,他引:1  
斑秃是一种发生于毛囊的非瘢痕性、炎症性疾病,尽管临床无明显炎症表现,但组织病理学检查显示,生长期毛囊有淋巴细胞浸润和炎症介质增多,临床用免疫调节或抑制剂治疗有效。斑秃发病与自身免疫有关,是炎症细胞介导的、器官特异性疾病。啮齿类动物有自发脱发现象,其发病机制与人类斑秃相似,文中就啮齿类动物(C3H/HeJ小鼠和DEBR鼠)的秃发特征和发病机制研究现状作一综述。  相似文献   

18.
目的观察斑秃患者局部外用二苯环丙烯酮(DPCP)治疗的临床疗效。方法应用DPCP治疗16例斑秃患者,2%DPCP外搽秃发区致敏,1周后用0.001%DPCP外搽患者头皮,每周1次,并据患者反应增加浓度观察其治疗反应及副作用,并与局部外用米诺地尔酊2次/d进行对照。结果治疗组坚持治疗的11例患者中,8例出现终毛生长,有效率为72.73%,达到良好反应的中位时间为(9.07±3.96)月,停止治疗后复发率为25.00%,12.50%患者出现较严重副作用。对照组13例坚持治疗,4例患者出现终毛生长,有效率30.77%,复发率为25.00%。治疗组疗效明显优于对照组(P<0.05)。结论 DPCP治疗斑秃有效率高,安全性相对较好,是值得推荐的一种有效治疗方法。  相似文献   

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