Periodic fever,aphthous stomatitis,pharyngitis and cervical adenopathy syndrome is associated with activation of GM-CSF and burst-like expression of IL-8 in peripheral blood

Abstract

Introduction. Periodic fever, aphthous stomatitis, pharyngitis and cervical adenopathy (PFAPA) is an autoinflammatory syndrome characterized by periodic fever with aphthous stomatitis, cervical lymphadenopathy, myalgia, and abdominal pain. Peripheral blood concentrations of selected cytokines of PFAPA patients during and between febrile episodes were analyzed in a search for PFAPA-specific molecular signature.

Methods. 23 children with PFAPA (age 6.07 ± 2.94 years, range 5–9 years) and three control children with severe oropharyngeal infections (age 6.2 ± 7.95 years, range 1–17 years) participated in the study. Peripheral blood concentrations of IL-1β, IL-2, IL-4, IL-5, IL-6, IL-8, IL-10, IFN-γ, GM-CSF, TNF-α were measured using Luminex technology.

Results. PFAPA febrile episodes were characterized by detection of GM-CSF – 134.07 ± 315.5 pg/mL; significant (P < 0.001), compared to baseline and controls, elevation of concentrations of IL-8 (3193.7 ± 2508 pg/mL vs. 100.36 ± 119. pg/mL vs. 2.04 ± 4.08 pg/mL, respectively), IL-6 (1355.38 ± 2026.53 pg/mL vs. 28.8 ± 44.2 pg/mL and 27.13 ± 26.42 pg/mL, respectively). IL-1β was detected only in febrile and afebrile PFAPA patients (922.8 ± 1639 pg/mL vs. 10.98 ± 19.4 pg/ml, P < 0.002, respectively), but not in controls. Peripheral blood concentration of TNFα did not differ significantly between study groups. IL-2, IL-4, IL-5, and IL-10 were negligible in all study subjects.

Discussion. PFAPA febrile episodes are characterized by activation of GM-CSF and IL-8 with Th1 skewing. We propose a molecular mechanism governing this phenomenon.     

Proteinase-activated receptor 2 expression on peripheral blood monocytes and T-cells in patients with rheumatoid arthritis

Aim of the workProteinase-activated receptor 2 (PAR2) is a G protein-coupled receptor activated by serine proteinases with proinflammatory activity. The aim of this work was to evaluate the expression of PAR2 on peripheral blood monocytes and T-cells in rheumatoid arthritis (RA) patients and its correlation with disease activity.Patients and methodsForty RA patients and 16 healthy controls were enrolled in this study. Flow cytometry was performed to detect PAR2 expression. Disease activity score (DAS28) was assessed.ResultsPAR2 expression was significantly higher on monocytes in RA patients with active disease compared with patients in remission and healthy controls (75.4 ± 7.68; 56 ± 13.93 and 46.5 ± 9.8 respectively; p < 0.001). It was higher in RA patients in remission compared to healthy control (p = 0.01). No significant difference was found between patients with moderate and high disease activity. It significantly correlated with the erythrocyte sedimentation rate (ESR) and DAS28 (p < 0.001). It was significantly higher in patients with rheumatoid factor (RF) and anti-cyclic citrullinated peptide (anti-CCP) positivity (p = 0.01, p < 0.001, respectively). It was not significantly associated with C-reactive protein (CRP) positivity and was not significantly different between early and long standing RA patients. PAR2 expression on CD3⁺ T-cells was not significantly different between patients with RA disease activity, patients in remission and healthy controls. Also it was not significantly associated with the ESR, DAS28, anti-CCP, RF and CRP positivity.ConclusionPAR2 expression on monocytes is consistent with a pathogenic role for PAR2 in RA and suggests that PAR2 may have utility as a marker for RA disease activity.     

吸烟对肺功能和外周血T淋巴细胞IL-2mRNA的影响

目的 探讨吸烟对健康人肺功能和外周血T细胞IL-2mRNA表达的影响.方法 随机选择健康吸烟者和非吸烟者各24名,检测肺功能指标和外周血T淋巴细胞中IL-2mRNA表达.结果 吸烟组中FEV1、FEV1/FVC%、MMEF75/25较对照组有明显下降(P＜0.05);吸烟组中IL-2mRNA较对照组有显著性增高(P＜0.05).肺功能中FEV1/FVC%随IL-2mRNA的表达水平增加呈降低趋势(r=-0.758,P＜0.05).结论 吸烟者在尚无临床症状时,肺功能已经受损.吸烟可能通过增加T淋巴细胞IL-2mRNA的表达促进炎症反应导致肺功能损害.     

Differential in vitro effects of IL-4, IL-10, and IL-13 on proinflammatory cytokine production and fibroblast proliferation in rheumatoid synovium

The purpose of this study was to compare the potential of interleukin-4 (IL-4), IL-10, and IL-13 to interrupt two major inflammatory pathways in rheumatoid arthritis (RA), i.e., overexpression of proinflammatory cytokines and cytokine-mediated fibroblast growth. IL-4, IL-10, and IL-13 were all able to significantly inhibit the production of IL-1β, tumor necrosis factor-α (TNF-α), IL-6, and IL-8 by freshly isolated RA synovial tissue cells; IL-10 was most effective in terms of IL-1β and TNF-α reduction. The IL-1 receptor antagonist was enhanced by IL-4 and IL-13, but only slightly enhanced by IL-10. Spontaneous interferon-γ secretion was diminished by IL-4 and IL-10 but not by IL-13. Addition of anti-IL-10 neutralizing antibody to RA synovial tissue cells resulted in a substantial increase in IL-1β and TNF-α levels, whereas neither anti-IL-4 nor anti-IL-13 antibody had a significant effect. IL-1β-stimulated proliferation of RA synovial fibroblast cell lines was inhibited by IL-4 and IL-13, but not by IL-10; IL-4 was over tenfold more effective than IL-13. These results suggest that IL-4, IL-10, and IL-13 all have the therapeutic potential to regulate the disease activity mediated by proinflammatory cytokines in RA, but each cytokine may have different potencies. Received: 29 June 2000 / Accepted: 20 July 2000     

Comparative analysis of the influences of IL-1, IL-3 and GM-CSF on the commitment of granulocyte-macrophage progenitors in vitro

Summary Our experiments were directed towards the detection of the influence of interleukin-1 (IL-1); interleukin-3 (IL-3), and granulocyte-macrophage colonystimulating factor (GM-CSF) on the generation of granulocyte-macrophage progenitor cells. We also set out to examine whether this process is connected with changes within the early precursor cell compartment. Bone marrow suspension cultures (12 days) supplemented with these cytokines were tested for the presence of GM colony-forming cells (GM-CFC) in a colony-forming unit assay. The percentage of CD 34⁺ and HLA-DR⁺ as well as the number of blasts and promyelocytes were estimated cytofluorometrically and morphologically. The proliferative effect of GM-CSF was associated with a net increase of GM-CFC and HLA-DR⁺ myeloid cells and a decrease in the percentage of CD 34⁺ early precursor cells. IL-3 acted similarly and also caused an absolute decrease of CD 34⁺ cells in the cultures. IL-1 did not stimulate the generation of blasts or GM-CFC but elevated the number of CD 34^– as well as HLA-DR-expressing cells in the cultures. These results imply that GM-CSF supported the maintenance of hematopoiesis in vitro. The transition from early precursor cells to committed myeloid progenitor cells (GM-CFC) and more mature precursor cells (G-CFC, M-CFC) may be supported by GM-CSF without affecting the self-renewing capacity of CD 34⁺ early precursors. In contrast, the blast-generating and proliferation-inducing action of IL-3 is associated with a drop in the total number of CD 34⁺ stem cells. An efficient renewal of this population obviously depends on the presence of IL-1.     

乙型肝炎患者外周血单个核细胞中Foxp3 mRNA表达水平

目的探讨乙型肝炎病毒（HBV）感染患者外周血单个核细胞中叉头状螺旋转录因子（Foxp3）mRNA表达及其与HBV感染后转归的关系。方法应用实时RT-PCR方法检测19例急性乙型肝炎、50例慢性乙型肝炎、21例乙型肝炎后肝硬化、15例慢性乙型重型肝炎和15例正常对照组外周血单个核细胞中Foxp3 mRNA表达,应用ELISA法检测其血清中白细胞介素（IL）-10、转化生长因子β（TGF-β）含量,并观察它们与Foxp3 mRNA的相关性。结果急性乙型肝炎、慢性乙型肝炎、肝硬化、慢性重型肝炎患者Foxp3 mRNA水平高于正常对照组（P〈0.05）,重型肝炎Foxp3 mRNA水平高于其他各组（P〈0.05）。HBV感染各组IL-10、TGF-β含量较正常组明显升高（P〈0.05）,急性乙型肝炎组IL-10含量较慢性乙型肝炎组明显升高（P〈0.05）;急性乙型肝炎组TGF-β含量与肝硬化组、重型肝炎组比较差异无统计学意义（P〉0.05）,其他各组两两比较差异有统计学意义（P〈0.05）。IL-10、TGF-β与Foxp3 mRNA表达水平无相关性。结论急性乙型肝炎、慢性乙型肝炎、肝硬化、慢性重型肝炎患者Foxp3 mRNA水平高于正常人,重型肝炎患者Foxp3 mRNA水平高于其他各组HBV感染者,表明Foxp3参与了HBV发病过程,外周血单个核细胞中Foxp3 mRNA表达水平可能与疾病预后密切相关。     

Immunodeficiency and IL-6 production by peripheral blood monocytes in multicentric Castleman's disease

Summary. To study the pathogenesis of multicentric Castleman's disease (MCD), IL-6 producing cells and immune function were investigated in four MCD patients. The expression of IL-6 mRNA in one MCD lymph node was analysed by in situ hybridization. IL-6 mRNA expressing cells were scattered in the interfollicular areas and did not resemble plasma cells. Spontaneous IL-6 production was detected in the culture supernatants of peripheral blood mononuclear cells (PBMNC) from four patients. The IL-6 producing cells among the PBMNC were found to be monocytes by both in situ hybridization and immunohistochemistry. We evaluated immune function in four MCD patients. These studies show: (1) a negative PPD skin test in 3/4 patients. (2) decreased IL-2 production in 3/4 patients, (3) decreased T cell colony formation in 3/4 patients, (4) decreased NK activity and NK cell number in 2/4 patients, (5) increased soluble IL-2 receptor in 4/4 patients, and (6) decreased CD4/CD8 ratio in 3/4 patients. These results show that MCD resembles, in several ways, acquired immunodeficiency syndrome (AIDS).     

哮喘患者外周血单个核细胞NOD2 mRNA表达的研究

目的探讨外周单个核细胞NOD2 mRNA表达在哮喘发病机制中的作用以及与气道炎症的关系。方法将60例哮喘患者分为急性发作组和慢性持续期组,每组30人,经治疗症状体征好转后,作为临床缓解期组,采用实时荧光定量聚合酶链反应(PCR)法和酶联免疫吸附测定(ELISA)法分别检测哮喘各组及健康对照组30人外周血单个核细胞核内NOD2 mRNA的表达量及血清IL-6的含量。结果急性发作期哮喘患者的NOD2 mRNA的表达量及IL-6的含量均明显高于慢性持续期哮喘患者(P0.05)。急性发作期和慢性持续期哮喘患者的NOD2 mRNA的及IL-6的表达,均明显高于健康对照组(P0.05)。急性发作期和慢性持续期哮喘患者经治疗后的NOD2 mRNA及IL-6的表达较各自治疗前水平明显降低,且均高于健康对照组水平,具有统计学意义(P0.05)。哮喘患者外周血单个核细胞核内NOD2 mRNA表达随血清IL-6含量呈正相关,相关系数r=0.85,P0.05。结论 NOD2和IL-6都参与了哮喘的气道炎症反应,且与哮喘患者的严度程度呈正相关。     

IL-4 improves the detection of cytogenetic abnormalities in multiple myeloma and increases the proportion of clonally abnormal metaphases

In the present study the incidence of abnormal karyotypes and the number and proportion of abnormal metaphases obtained in multiple myeloma (MM) using three culture conditions were compared: unstimulated culture (72 h), IL-6/GM-CSF-stimulated culture (120 h) and IL-4-stimulated culture (120 h). The three types of culture conditions were assessed simultaneously on bone marrow samples from 30 consecutive myeloma patients. In addition DNA content (DNA ploidy and cell cycle) was analysed by flow cytometry. The number of MM samples with clonal karyotypic abnormalities was higher after IL-4-stimulated cultures (53%) than it was after IL-6 + GM-CSF (37%) and unstimulated (30%) cultures. The benefit of IL-4 was also observed in cases with low numbers of plasma cells in the bone marrow, in early clinical stages and in untreated patients. In those cases in whom clonal chromosomal abnormalities were detected by the three culture methods, the cytogenetic findings were always identical. According to our results the addition of IL-4 to the cultures of bone marrow cells in MM increases the number of abnormal metaphases.     

Serum IL-4, IL-10 and IL-6 levels in inflammatory arthritis

As the available in vitro and in vivo data suggest that interleukin (IL)-4 and IL-10 have immunosuppressive activity, our hypothesis was that serum IL-4 and IL-10 levels would correlate inversely with parameters of inflammation in patients with inflammatory arthritis. IL-4 was detected in the serum of 12 out of 140 patients with rheumatoid arthritis (RA), which was increased compared to the proportion found with patients with osteoarthritis (OA; P< 0.02). In addition, IL-4 was detected in the serum of 2 of 19 patients with systemic lupus erythematosus (SLE), 2 of 24 patients with psoriatic arthritis and 1 of 5 patients with Behçet's syndrome. No IL-4 was detected in patients with the following conditions: OA (58 patients), gout (17 patients), ankylosing spondylitis (6 patients), Reiter's syndrome (6 patients), polymyalgia rheumatica (6 patients), temporal arteritis (5 patients) and scleroderma (3 patients). No IL-10 was detected in any of the sera tested. We discuss the possible relevance of these results to the regulation of the immune response evident in inflammatory arthritis.     

青蒿琥酯治疗对斯氏狸殖吸虫感染大鼠血清IL-2和IL-4含量的影响

目的 对比观察青蒿琥酯(Art)和吡喹酮治疗斯氏狸殖吸虫感染大鼠后,大鼠免疫转归情况,了解青蒿琥酯是否有提高斯氏狸殖吸虫感染大鼠免疫力的作用.方法 将36只清洁级雄性Wistar大鼠随机分成6组,正常对照组(A组),感染未治疗组(B组),青蒿琥酯小剂量组(C组)、中剂量组(D组)、大剂量组(E组),吡喹酮组(F组).感染鼠每只腹腔注射25个斯氏狸殖吸虫囊蚴,感染后30 d开始用药治疗.C、D、E分别给予Art 50 mg/( kg·d) ×7d,100 mg/(kg·d) ×7 d,150 mg/(kg·d)×7 d口服;F组给予吡喹酮150 mg/kg,隔日给药一次,共3次;B组给予同体积生理盐水.于用药后30 d,摘取大鼠眼球取血,分离血清,取脾称重,计算脾脏指数.用ELISA测定大鼠血清中的细胞因子白细胞介素-2(IL-2)和白细胞介素-4(IL-4)的含量.结果 A组大鼠脾脏指数、IL-2、IL-4含量依次为2.7333±0.16330、(28.3333±1.05409)pg/ml、(4.1190±0.44537)pg/ml;B组大鼠脾脏指数、IL-2、IL-4含量依次为3.8333±0.25033、(19.5000±0.76376) pg/ml、(41.9293±0.80702) pg/ml,与A组相比,有统计学意义差异(t=9.20、16.62、100.48,P均＜0.01).C、D、F组与B组比较,脾脏指数、IL-2、IL-4有统计学意义差异(t=6.00、7.50、8.63,10.70、18.54、11.51,112.54、113.21、111.39,P均＜0.01),E组脾脏指数、IL-2与B组比较,无统计学意义差异(t=1.75,0.54,P均＞0.05).结论 中、小剂量的青蒿琥酯有提高斯氏狸殖吸虫感染大鼠免疫力的作用.     

Analysis of blood T-cell cytokine expression in B-chronic lymphocytic leukaemia: evidence for increased levels of cytoplasmic IL-4 in resting and activated CD8 T cells

The cytoplasmic cytokines of purified blood T cells (CD4/C]D8) in B-CLL patients ( n  = 5) and controls ( n  =5) were evaluated by flow cytometry. The mean levels of cytoplasmic IL-4 were significantly elevated in resting and activated B-CLL CD8 cells compared to control CD8 cells. IL-4 cytoplasmic levels were comparable for resting B-CLL and control CD4 cells but greater for B-CLL activated CD4 cells. The mean fluorescence intensity of B-CLL CD8 cytoplasmic IL-4 was 4–5-fold greater, indicating higher IL-4 density per CLL CD8 than control CD8 cells. Both CLL CD4 and CD8 cells post-activation had higher levels of cells double positive for cytoplasmic IL-4 and interferon. These data indicate that freshly isolated CD8 and CD4 blood T cells from B-CLL patients have significantly elevated (above control) levels of commitment to expression of IL-4. Since IL-4 has an important modulatory impact on CLL and normal B cells, this observation has implications regarding the biology of B-CLL.     

聚乙二醇干扰素α-2b治疗慢性乙型肝炎患者外周血T淋巴细胞亚群和血清细胞因子水平变化*

目的 研究聚乙二醇干扰素α-2b治疗慢性乙型肝炎患者外周血T淋巴细胞亚群和血清细胞因子水平的变化。 方法 2014年1月~2016年1月我院收治的184例慢性乙型肝炎患者,92例接受聚乙二醇干扰素α-2b联合恩替卡韦治疗48 w,另92例只接受恩替卡韦治疗。使用流式细胞仪检测外周血T淋巴细胞亚群,采用放射免疫法检测血清IL-6、INF-ɑ、IL-4,采用酶联免疫吸附法检测血清IL-17、TGF-β1和HBV标记物,采用荧光定量PCR法检测血清HBV DNA、核转录因子RORγt、Foxp3、IL-17mRNA。 结果 在停药随访24 w,联合组与恩替卡韦组血清HBV DNA阴转率分别为86.96%和84.78%（P>0.05）;联合组血清HBeAg阴转率为28.89%（13/45）,与恩替卡韦组的15.22%（7/46）比,无显著性差异（P>0.05）;联合组血清ALT水平为（34.6±11.6） U/L,显著低于恩替卡韦组【（64.6±20.5） U/L,P<0.05】;联合组外周血CD3+、CD4+细胞和CD4+/CD8+比值分别为（75.6±14.5）%、（42.7±10.3）%和（1.4±0.6）,显著高于恩替卡韦组【（66.8±14.4）%、（36.7±8.5）%和（1.0±0.5）,P<0.05】,CD8+细胞百分比为（29.3±7.3） %,显著低于恩替卡韦组【（34.8±8.5） %,P<0.05】,两组NK细胞百分比比较无显著性差异（P>0.05）;治疗前两组血清IL-6、IL-17、IL-4、INF-ɑ、TGF-β1水平比较无显著性差异（P>0.05）,治疗后联合组血清IL-6水平为（6.8±1.2）pg/ml,显著高于恩替卡韦组【（3.5±0.8） pg/ml,P<0.05】,IL-17水平为（0.7±0.3） pg/ml,显著低于恩替卡韦组【（2.8±0.9） pg/ml,P<0.05】,IL-4水平为（1.4±0.5）pg/ml,显著低于恩替卡韦组【（3.8±1.5）pg/ml,P<0.05】,INF-ɑ水平为（4.0±1.3） pg/ml,显著高于恩替卡韦组【（2.6±0.9）pg/ml,P<0.05】,两组血清TGF-β1水平比较无显著性差异（P>0.05）;治疗前两组血清Foxp3、IL-17和RORγt mRNA水平比较无显著性差异（P>0.05）,治疗后联合组血清RORγt水平为（0.86±0.31）,显著低于恩替卡韦组【（1.56±0.43）,P>0.05】,而两组血清Foxp3和IL-17mRNA水平比较无显著性差异（P>0.05）。 结论 聚乙二醇干扰素α-2b能通过调控细胞因子和核转录因子水平,从多个环节调控慢性乙型肝炎患者免疫功能,发挥抗病毒作用。     

TLR2 and TLR4 gene expression in peripheral monocytes in nondiabetic hypertensive patients: the effect of intensive blood pressure-lowering

The activation of innate immune receptors, such as Toll-like receptors (TLRs), participates in the pathogenesis of cardiovascular diseases. The authors evaluated TLR2 and TLR4 gene expression in the peripheral monocytes of nondiabetic hypertensive patients compared with normotensive individuals and investigated the effect of intensive systolic blood pressure (SBP)-lowering. Included were 43 nondiabetic hypertensive patients with essential hypertension who were randomly assigned to an intensive treatment arm, with an SBP target of <130 mm Hg, or a standard arm, with an SBP target of <140 mm Hg. TLR2 and TLR4 messenger RNA (mRNA) levels in monocytes were estimated before and 12 weeks after therapy initiation. Sixteen healthy individuals were included for comparison. Hypertensives revealed significantly higher TLR4 mRNA levels compared with normotensives (985 ± 885 vs 554 ± 234, P=.005). In contrast, no statistically significant difference was found in TLR2. Compared with standard treatment, intensive treatment significantly downregulated TLR2 and TLR4 mRNAs, expressed as fold induction (0.66 ± 0.49 vs 1.38 ± 1.65 and 0.62 ± 0.3 vs 1.9 ± 1.2, respectively; P<.001 for both). In conclusion, TLR4 mRNA levels in peripheral monocytes are significantly elevated in nondiabetic hypertensive patients. Intensive control of SBP results in attenuation of TLR2 and TLR4 gene expression in those patients. Our findings suggest that a strict SBP target in nondiabetic hypertensive patients may offer additional benefits.     

Culture of leukocyte-derived cells from human peripheral blood: Increased expression of pluripotent genes OCT4, NANOG,SOX2, self-renewal gene TERT and plasticity

There are few stem cells in human peripheral blood (PB). Increasing the population and plasticity of stem cells in PB and applying it to regenerative medicine require suitable culture methods. In this study, leukocyte populations 250 mL of PB were collected using a blood separator before that were cultured in optimal cell culture medium for 4 to 7 days. After culturing, stemness characteristics were analyzed, and red blood cells were removed from the cultured cells. In our results, stemness markers of the leukocyte populations Sca-1⁺ CD45⁺, CD117⁺ CD45⁺, and very small embryonic-like stem cells CD34⁺ Lin⁻ CD45⁻ and CXCR4⁺ Lin⁻ CD45⁻ were significantly increased. Furthermore, the expression of stem cell genes OCT4 (POU5F1), NANOG, SOX2, and the self-renewal gene TERT was analyzed by quantitative real-time polymerase chain reaction in these cells, and it showed a significant increase. These cells could be candidates for multi-potential cells and were further induced using trans-differentiation culture methods. These cells showed multiple differentiation potentials for osteocytes, nerve cells, cardiomyocytes, and hepatocytes. These results indicate that appropriate culture methods can be applied to increase expression of pluripotent genes and plasticity. Leukocytes of human PB can be induced to trans-differentiate into pluripotent potential cells, which will be an important breakthrough in regenerative medicine.     

IL-1 family members and STAT activators induce cytokine production by Th2, Th17, and Th1 cells

Expression of T1ST2, the IL-33R, by Th2 cells requires GATA3. Resting Th2 cells express little GATA3, which is increased by IL-33 and a STAT5 activator, in turn increasing T1ST2 from its low-level expression on resting Th2 cells. Th2 cells that have upregulated T1ST2 produce IL-13, but not IL-4, in response to IL-33 plus a STAT5 activator in an antigen-independent, NF-κB-dependent, cyclosporin A (CsA)-resistant manner. Similarly, Th17 cells produce IL-17A in response to IL-1β and a STAT3 activator and Th1 cells produce IFNγ in response to IL-18 and a STAT4 inducer. Thus, each effector Th cell produces cytokines without antigenic stimulation in response to an IL-1 family member and a specific STAT activator, implying an innate mechanism through which memory CD4 T cells are recruited by an induced cytokine environment.     

大鼠实验性卡氏肺孢子虫肺炎中IL-2,IL-6的变化

目的 建立大鼠实验性卡氏肺孢子虫肺炎的模型,观察血清和肺泡灌洗液中IL-2和IL-6的变化.方法 给SD大鼠皮下注射地塞米松磷酸钠建立卡氏肺孢子虫肺炎动物模型,酶免法检测支气管肺泡灌洗液中IL-2和IL-6含量及血清中IL-6含量;放免法检测血清中IL-2含量.结果 感染组大鼠血清和肺泡灌洗液中IL-2和IL-6含量均显著高于正常对照组.结论 卡氏肺孢子虫肺炎大鼠血清和肺泡灌洗液中IL-2和IL-6升高.     

囊尾蚴病患者IL-4、IL-5和IL-10水平检测

目的探讨白细胞介素4(IL-4)、白细胞介素5(IL-5)和白细胞介素10(IL-10)在囊尾蚴病发病中的免疫学作用。方法用双抗体夹心(ELISA)法检测囊尾蚴病患者血清中IL-4、IL-5和IL-10水平。结果囊尾蚴病患者血清中IL-4、IL-5和IL-10水平分别为(152.3±31.2)、(256.4±23.3)和(343.9±20.8)ng/L,正常对照组血清中IL-4、IL-5和IL-10水平分别为(75.0±28.5)、(119.5±17.6)和(106.7±19.6)ng/L,2组比较差异均有统计学意义(t值分别为10.6、27.1和48.4,P<0.001)。结论囊尾蚴感染患者Th2型细胞因子表达水平失常,体液免疫功能升高,说明囊尾蚴感染可致宿主免疫功能紊乱。     

细胞因子IL-4、IL-9和IgE在肠道蠕虫感染者中的水平及临床意义

目的检测肠道蠕虫感染者外周血中细胞因子白细胞介素-4(IL-4)、IL-9和Ig E的水平,并分析其与临床症状和虫种之间的相关性。方法收集2010年1月至2014年7月河南省人民医院儿科收治的肠道蠕虫感染者55例,包括蛔虫感染者18例(32.7%)、钩虫感染者8例(14.5%)、鞭虫感染者7例(12.7%)和蛲虫感染者22例(40.0%)。ELISA检测该55例肠道蠕虫感染者治疗前后以及健康对照组外周血中IL-4、IL-9和Ig E水平,并分析其与临床症状和虫种之间的相关性。结果肠道蠕虫感染组药物治疗前外周血中IL-4、IL-9和Ig E水平分别为(157.42±41.0)pg/ml、(59.9±21.7)pg/ml和(316.6±129.0)IU/ml,均高于健康对照组的(39.0±23.5)pg/ml、(21.3±12.5)pg/ml和(127.7±117.6)IU/ml(P0.01);治疗后外周血中IL-4、IL-9和Ig E水平显著降低,分别为(98.1±41.7)pg/ml、(38.7±14.1)pg/ml和(253.1±94.0)IU/ml,但仍高于健康对照组(P0.05)。55例患者中,消化道出血者IL-9水平为(76.1±23.5)pg/ml,明显高于腹部不适和排便习惯改变者(54.3±22.1)pg/ml(P0.05),但低于并发过敏性皮炎者(108.5±33.4)pg/ml(P0.05),3组不同症状患者Ig E和IL-4水平差异无统计学意义(P0.05)。此外,蛲虫、蛔虫、钩虫和鞭虫感染组IL-9水平分别为(120.3±41.0)pg/ml、(90.1±29.7)pg/ml、(77.3±18.3)pg/ml和(62.5±24.3)pg/ml,蛲虫感染组高于蛔虫、钩虫和鞭虫感染组(P0.01),各虫种感染组IL-4和Ig E水平差异无统计学意义(P0.05)。蛔虫和钩虫感染者IL-9的水平差异无统计学意义(P0.05),但均高于鞭虫感染者(P0.01),3者之间IL-4和Ig E水平差异无统计学意义(P0.05)。结论 IL-4、IL-9和Ig E水平与肠道蠕虫感染明显相关,IL-9水平因感染虫种和临床症状不同存在较大的差异。