Effects of Huaiqihuang Granule on immunoglobulin, T lymphocyte subsets and cytokines in children with cough variant asthma

Objective:To observe the effect of Huaiqihuang granule on immunoglobulin, T lymphocyte subsets and cytokines in children with cough variant asthma (CVA). Methods:80 cases of children with CVA were enrolled in our hospital from June 2015 to June 2016, and were randomly divided into study group and control group. Two groups were both given salbutamol aerosol powder. On this basis, the control group was given Montelukast Sodium Chewable Tablets, while the study group was treated with Huaiqihuang granules. The interleukin 4 (IL-4), interferon-γ(IFN-γ), IgA, IgG and IgE levels and CD4+, CD8+T lymphocyte ratio analyze in children after 3 months of treatment. Results:There were no significant differences between the two groups before treatment (P>0.05). Both IgA and IgG were significantly higher in the two groups after treatment, while IgE was significantly lower (P<0.05). Compared with the control group, the IgA and IgG in the study group were significantly higher than those in the control group (P<0.05), while IgE was significantly lower (P<0.05). After treatment, compared with the control group, the proportion of CD4+ and CD4+/CD8+ in the study group were significantly lower than that of the control group, and the CD8+ratio increased more significantly (P<0.05). After treatment, IL-4 decreased significantly, while IFN-γand IFN-γ/IL-4 were significantly increased (P<0.05), IL-4 level of the study group decreased significantly compared with the control group, and IFN-γincreased significantly compared with the control group, and the level of IFN-γ/IL-4 after treatment was significantly higher than that of the control group (P<0.05). Conclusions: Huaiqihuang granule can improve humoral immunity and cellular immunity of children with CVA, and can adjust the immune cells balance of Th1/Th2, and improve the immune function and prognosis of children with CVA.

T Lymphocytes and Th1/Th2 Cytokines in Peripheral Blood of Patients with Recurrent Genital Herpes

Objective: This study analyzed the T lymphocytes andThl/Th2 type cytokine profile shift in the peripheral blood ofpatients with recurrent genital herpes (RGH). Methods: Immunofluorescent staining of cell surface antigenand intracellular cytokines(IL-2, IL-4, IL-12, IFN-r)inperipheral blood from 20 RGH patients and 10 controls wereanalyzed using flow cytometric techniques. Results: RGH patients had significantly lower levels of CD3^+T cells, CD4^+T cells and CD4^+ T / CD8^+ T cells ratiocompared to control levels (P<0.001), and IL-2-producing,IFN-r-producing and IL-12-producing T cells were increasedin RGH patients (CD4^+T: P<0.001, CD8^+T: P<0.05respectively), whereas IL-4-producing T cells were increased inRGH patients compared to controls (CD4+T: P<0.05; CDS^+T:P<0.001 respectively). Conclusions: RGH patients have T lymphocyte subsetvariations and Thl/Th2 cytokine changes. The increase in Th2cells Thl/Th2 imbalance may have important implications forRGH pathogenesis.

SERUM HAPTOGLOBIN SUPPRESSES T-LYMPHOCYTE FUNCTIONS FOLLOWING BURNS

ＳＥＲＵＭＨＡＰＴＯＧＬＯＢＩＮＳＵＰＰＲＥＳＳＥＳＴ－ＬＹＭＰＨＯＣＹＴＥＦＵＮＣＴＩＯＮＳ ＦＯＬＬＯＷＩＮＧＢＵＲＮＳ￥ＷａｎｇＦｅｎｇｊｕｎ（王凤君）ＨｕａｎｇＷｅｎｈｕａ（黄文华）ａｎｄＬｉＡｏ（黎鳌）（ＢｕｒｎＲｅｓｅａｒｃｈＩｎｓｔｉｔ...

黄芪对甲状腺功能正常的桥本甲状腺炎患者外周血T淋巴细胞亚群表达的影响

目的·探讨黄芪对甲状腺功能正常的桥本甲状腺炎患者T淋巴细胞亚群及细胞因子表达的影响。方法·选择2020年1月—12月在上海市第六人民医院金山分院接受治疗且资料完整的甲状腺功能正常的桥本甲状腺炎患者120例,采用随机数字表将患者为干预组及对照组,每组各60例。对照组治疗方案为碘适宜状态饮食,干预组在对照组治疗方案基础上联合黄芪药液口服(150 mL/次,2次/d)治疗。连续治疗6个月,比较2组治疗前后外周血清T淋巴细胞亚群(CD3^(+)、CD4^(+)、CD8^(+)、CD4^(+)/CD8^(+)),细胞因子[包括白细胞介素2(interleukin-2,IL-2)、肿瘤坏死因子α(tumor necrosis factor-α,TNF-α)、IL-6、IL-10],超敏C反应蛋白(hypersensitive C-reactive protein,hs-CRP),红细胞沉降率(erythrocyte sedimentation rate,ESR),以及甲状腺功能及自身抗体、肝肾功能等指标的变化。观察黄芪治疗期间不良反应。应用多因素线性回归分析甲状腺过氧化物酶抗体(thyroid peroxidase antibody,TPOAb)变化幅度的影响因素。结果·最终纳入118例患者,每组各59例。治疗6个月后,干预组CD4^(+)T细胞比例,CD4^(+)/CD8^(+)比值,IL-2、TNF-α、IL-6、IL-10、hs-CRP、ESR、TPOAb和甲状腺球蛋白抗体(thyroglobulin antibody,TGAb)水平均较治疗前及其同期对照组显著改善,差异均有统计学意义(均P<0.05)。对照组治疗后上述指标与治疗前比较,差异均无统计学意义(P>0.05)。治疗后干预组未见严重不良反应。多因素线性回归分析结果显示,应用黄芪、CD4^(+)T细胞、CD4^(+)/CD8^(+)比值升高幅度及hs-CRP下降幅度均是TPOAb下降幅度的独立影响因素(β=−0.393,P=0.029;β=−0.513,P=0.010;β=−0.351,P=0.035;β=0.434,P=0.023)。结论·黄芪可改善甲状腺功能正常的桥本甲状腺炎患者CD4^(+)T细胞、IL-2、TNF-α、IL-6、IL-10水平及CD4^(+)/CD8^(+)比值,且安全性佳。

TH1、TH17及其细胞因子与结核性胸膜炎患者治疗效果的相关性分析

目的分析辅助性T淋巴细胞1(TH1)、辅助性T淋巴细胞17(TH17)及其细胞因子与结核性胸膜炎患者治疗效果的相关性。方法选取2019年1月至2022年5月河北省胸科医院收治的108例结核性胸膜炎患者为研究对象,均给予2HRZE/10HRE治疗,根据治疗效果将患者分为有效组(n=78)与无效组(n=30)。比较两组胸腔积液的TH1、TH17、TH1细胞因子[肿瘤坏死因子-α(TNF-α)、干扰素-γ(IFN-γ)]及TH17细胞因子[白细胞介素17(IL-17)]水平;采用多因素logistics回归分析胸腔积液TH1、TH17、TNF-α、IFN-γ、IL-17与结核性胸膜炎患者治疗效果的关系;绘制ROC曲线分析胸腔积液TH1、TH17、TNF-α、IFN-γ、IL-17水平对结核性胸膜炎患者治疗效果的预测价值。结果无效组胸腔积液的TH1、TH17、TNF-α、IFN-γ、IL-17水平均高于有效组,差异均具有统计学意义(t=6.461、5.688、6.726、5.891、7.148,均P<0.05);多因素logistics回归分析显示,TH1、TH17、TNF-α、IFN-γ、IL-17水平升高均是结核性胸膜炎患者治疗效果的独立危险因素(P<0.05);ROC曲线分析显示,胸腔积液TH1、TH17、TNF-α、IFN-γ、IL-17的ROC曲线下面积分别为0.836、0.793、0.836、0.817、0.856(P<0.05)。结论结核性胸膜炎患者治疗效果可能与胸腔积液TH1、TH17及其细胞因子水平相关。

CD4^(+)和CD8^(+)T细胞在结核病免疫应答中的作用

结核分枝杆菌是世界范围内单一感染源致死亡的主要原因,并且已有大量人群被感染后处于长期潜伏感染状态。机体清除结核分枝杆菌主要依赖于特异性免疫应答,其中T淋巴细胞作为参与机体细胞免疫的主要细胞,其增殖和活化在机体特异性免疫应答中发挥着至关重要的作用。笔者分析了结核分枝杆菌感染机体后,T淋巴细胞亚群中的CD4^(+)T和CD8^(+)T细胞在结核分枝杆菌感染免疫应答中的作用,并且对机体抗结核分枝杆菌感染免疫应答的机制进行总结,为进一步深入探索适应性免疫的抗结核感染网络、结核病的诊断及临床研制新型疫苗提供借鉴。

DNMT1与T淋巴细胞因子在急性髓系白血病中的表达水平及相关性分析

目的分析DNA甲基转移酶1(DNMT1)与T淋巴细胞因子在急性髓系白血病(AML)中的表达水平及相关性。方法选取昆明医科大学第一附属医院2020年1月至2022年12月收治的初诊AML患者作为AML组(38例),另选取同期在昆明医科大学第一附属医院进行骨髓穿刺的缺铁性贫血患者作为对照组(21例)。检测并比较两组骨髓DNMT1的信使RNA(mRNA)表达水平及T淋巴细胞因子[白细胞介素(IL)-2、IL-4、IL-6、IL-10、干扰素-γ(INF-γ)、肿瘤坏死因子-α(TNF-α)、转化生长因子-β(TGF-β)]水平,以及比较不同临床特征AML患者DNMT1表达水平。采用Pearson相关分析AML患者DNMT1表达水平与T淋巴细胞因子水平的相关性。绘制受试者工作特征(ROC)曲线分析DNMT1、T淋巴细胞因子单独及联合检测对AML的诊断效能。结果AML组DNMT1 mRNA表达水平高于对照组(P<0.001)。白细胞计数(WBC)≥5.0×10^(10)/L、骨髓幼稚细胞比例≥60%、外周血幼稚细胞比例≥60%、乳酸脱氢酶(LDH)≥300 U/L、骨髓外浸润、染色体核型预后不良患者DNMT1表达水平分别高于WBC<5.0×10^(10)/L、骨髓幼稚细胞比例<60%、外周血幼稚细胞比例<60%、LDH<300 U/L、无骨髓外浸润、染色体核型预后良好患者,差异均有统计学意义(P<0.05)。AML组血清IL-2、IL-4、IL-10、INF-γ水平高于对照组,TGF-β水平低于对照组,差异均有统计学意义(P<0.05)。Pearson相关分析结果显示,DNMT1表达水平与IL-2、IL-4、IL-10、INF-γ水平呈正相关(r=0.574、0.619、0.527、0.483,P<0.05),与TGF-β水平呈负相关(r=-0.475,P<0.05)。ROC曲线分析结果显示,DNMT1联合IL-2、IL-4、IL-10、INF-γ检测诊断AML的曲线下面积分别为0.918、0.711、0.756、0.726。结论AML患者的DNMT1表达水平升高、T淋巴细胞因子表达失衡,二者存在一定相关性,DNMT1与部分T淋巴细胞因子联合检测对AML具有诊断价值。

The injury progression of T lymphocytes in a mouse model with subcutaneous injection of a high dose of sulfur mustard

Background: In clinical studies, the findings on sulfur mustard(SM) toxicity for CD3+CD4+ and CD3+CD8+ T lymphocyte subsets are contradictory. In animal experiments, the effect of SM on the T cell number and proliferation is incompatible and is even the opposite of the results in human studies. In this study, we observed the dynamic changes of T lymphocytes in the first week in a high-dose SM-induced model.Methods: Mice were exposed to SM by subcutaneous injection(20 mg/kg) and were sacrificed 4 h, 24 h, 72 h and 168 h later. Spleen T lymphocyte proliferation was evaluated by 3H-Td R. Flow cytometric analysis was used to observe the percentage of CD3+CD4+ and CD3+CD8+ T lymphocyte subsets. The IL-1e assayed using the Luminex method. DNA damage in bone marrow ceβ, IL-6, IL-10 and TNF-lls was observed with α levels in plasma werthe single cell gel electrophoresis technique(SCGE).Results: SM continuously inhibited the proliferation of lymphocytes for 7 days, and there was a significant rebound of Con A-induced T lymphocyte proliferation only at 24 h. The percentage of CD3+CD4+ and CD3+CD8+ lymphocytes was upregulated, which was accompanied by increased IL-1β and TNF-creased in the PG group at 4 h. The peak of lymphocytic apoptα and decreased IL-10. The IL-6 level was gradually deosis and DNA damage occurred at 24 h and 72 h, respectively. Conclusion: Our results show that SM significantly inhibited T lymphocyte proliferation as well as induced CD3+CD4+ and CD3+CD8+ upregulation. SM intoxication also significantly increased the levels of pro-inflammatory cytokines(IL-1β, IL-6 and TNF-α) and inhibited the level of anti-inflammatory cytokine IL-10. Our results may partly be due to the significant SM induced significant apoptosis and necrosis of lymphocytes as well as DNA damage of bone marrow cells. The results provided a favorable evaluation of SM immune toxicity in an animal model.

Role of cytokines and other factors involved in the Mycobacterium tuberculosis infection

Mycobacterium tuberculosis(Mtb) is a pathogen that iswidely distributed geographically and continues to be a major threat to world health. Bacterial virulence factors, nutritional state, host genetic condition and immune response play an important role in the evolution of the infection. The genetically diverse Mtb strains from different lineages have been shown to induce variable immune system response. The modern and ancient lineages strains induce different cytokines patterns. The immunity to Mtb depends on Th1-cell activity [interferon-γ(IFN-γ), interleukin-12(IL-12) and tumor necrosis factor-α(TNF-α)]. IL-1β directly kills Mtb in murine and human macrophages. IL-6 is a requirement in host resistance to Mtb infection. IFN-γ, TNF-α, IL-12 and IL-17 are participants in Mycobacterium-induced granuloma formation. Other regulating proteins as IL-27 and IL-10 can prevent extensive immunopathology. CXCL 8 enhances the capacity of the neutrophil to kill Mtb. CXCL13 and CCL19 have been identified as participants in the formation of granuloma and control the Mtb infection. Treg cells are increased in patients with active tuberculosis(TB) but decrease with anti-TB treatment. The increment of these cells causes downregulation of adaptive immune response facilitating the persistence of the bacterial infection. Predominance of Th2 phenotype cytokines increases the severity of TB. The evolution of the Mtb infection will depend of the cytokines network and of the influence of other factors aforementioned.

A dysfunction of CD4^+ T lymphocytes in peripheral immune system of Parkinson's disease model mice

Objective Parkinson's disease(PD),a neurodegenerative disorder,has been reported to be associated with brain neuroinflammation in its pathogenesis.Herein,changes in peripheral immune system were determined to better understand PD pathogenesis and provide possible target for treatment of PD through improvement of immune disorder.Methods l-methyl-4-phenyl-l,2,3,6-tetrahydropyridine(MPTP) was intraperitoneally injected into mice to prepare PD model.Expression levels of pro-inflammatory and anti-inflammatory cytokines and transcription factors of CD4^+ T lymphocyte subsets in spleen and mesenteric lymph nodes and concentrations of the cytokines in serum were examined on day 7 after MPTP injection.Percentages of CD4^+ T lymphocyte subsets were measured by flow cytometry.Results MPTP induced PD-like changes such as motor and behavioral deficits and nigrostriatal impairment.Expression levels of the pro-inflammatory cytokines including interferon(IFN)-γ,interleukin(IL)-2,IL-17 and IL-22,in spleen and mesenteric lymph nodes were upregulated and their concentrations in serum were elevated in PD progression.But,the concentrations of the anti-inflammatory cytokines including IL-4,IL-10 and transforming growth factor(TGF)-β were not altered in the two lymphoid tissues or serum of PD mice.In addition,expression of T-box in T cells(T-bet),the specific transcription factor of helper T(Th) 1 cells,was downregulated,but expression of transcription factor forkhead box p3(Foxp3),the transcription factor of regulatory T(Treg) cells,was upregulated.In support of the results,the numbers of IFN-γ^+-producing CD4^+cells(Th1 cells) were reduced but CD4^+CD25^+ cells(Treg cells) were elevated in both the lymphoid tissues of PD mice.Conclusion PD has a dysfunction of peripheral immune system.It manifests enhancement of proinflammatory response and CD4^+T cell differentiation bias towards Treg cells away from Thl cells.

Cross-talk between hepatic stellate cells and T lymphocytes in liver fibrosis

Background: Fibrosis results from inflammation and healing following injury. The imbalance between extracellular matrix(ECM) secretion and degradation leads to the ECM accumulation and liver fibrosis. This process is regulated by immune cells. T lymphocytes, including alpha beta( αβ) T cells, which have adaptive immune functions, and gamma delta( γδ) T cells, which have innate immune functions, are considered regulators of liver fibrosis. This review aimed to present the current understanding of the cross-talk between T lymphocytes and hepatic stellate cells(HSCs), which are the key cells in liver fibrosis. Data sources: The keywords "liver fibrosis", "immune", and "T cells" were used to retrieve articles published in Pub Med database before January 31, 2020. Results: The ratio of CD8 +(suppressor) T cells to CD4+(helper) T cells is significantly higher in the liver than in the peripheral blood. T cells secrete a series of cytokines and chemokines to regulate the inflammation in the liver and the activation of HSCs to influence the course of liver fibrosis. In addition, HSCs also regulate the differentiation and proliferation of T cells. Conclusions: The cross-talk between T cells and HSCs regulates liver fibrosis progression. The elucidation of this communication process will help us to understand the pathological process of liver fibrosis.

Study on the blood-borne virus co-infection and T lymphocyte subset among intravenous drug users

AIM: To investigate the features of various blood- borne virus infections and co-infection in intravenous drug users (IDUs), and to examine the correlation of T lymphocyte subsets with virus co-infection. METHODS: Four hundred and six IDUs without any clinical manifestation of hepatitis and 102 healthy persons were enrolled in this study. HBV-DNA and HCV-RNA were detected by fluorescence quantitative PCR. HBsAg, HBeAg, anti-HBc, anti-HCV, HDV-Ag, anti-HGV, anti-HIV, and HCMV-IgM were assayed by enzyme-linked immunosorbent assay (ELISA) and immunochromatographic tests. The levels of Th1 and Th2 cytokines were measured by ELISA and radioactive immune assay (RIA). The T lymphocyte subpopulation was detected by using fluorescence immunoassay. The similar indices taken from the healthy persons served as controls. RESULTS: The viral infection rate among IDUs was 36.45% for HBV, 69.7% for HCV, 47.3% for HIV, 2.22% for HDV, 1.97% for HGV, and 3.45% for HCMV. The co- infection rate of blood-borne virus was detected in 255 of 406 (62.81%) IDUs. More than 80% (161/192) of subjects infected with HIV were co-infected with the other viruses, such as HBV, HCV. In contrast, among the controls, the infection rate was 17.65% for HBV and 0% for the other viruses. Our investigation showed that there was a profound decrease in the proportion of CD4/CD8 and the percentage of CD3 and CD4, but not in the percentage of CD8. The levels of PHA-induced cytokines (IFN-γ and IL-4) and serum IL-2 were obviously decreased in IDUs. On the other hand, the level ofserum IL-4 was increased. The level of IFN-γ and the percentage of CD4 were continuously decreased when the IDUs were infected with HIV or HIV co-infection. IDUs with HIV and HBV co-infection was 15.1% (29/192). Of those 29 IDU with HIV and HBV co-infection, 51.72% (15/29) and 37.93% (11/29) were HBV-DNA-positive and HBeAg-positive, respectively. But, among IDUs without HIV infection, only 1.68% (2/119) of cases were HBV- DNA-positive. CONCLUSION: HCV, HBV and HIV infections are common in this population of IDU, leading to a high incidence of impaired Th1 cytokine levels and CD4 lymphocyte. IDUs with HIV and HBV/HCV co-infection have lower expression of Th1 cytokine with enhancement of the Th2 response. HIV may be causing HBV replication by decreasing Th1 function.

Selective Depletion of the Allo-Antigen Specific T Cells by Fas/FasL Pathway by Cytokine IFN-γ and IL-2

To investigate the value of apoptosis of the allo antigen specific T cells induced by Fas/FasL pathway in preventing graft versus host disease (GVHD), the CD34 + cells transfected with FasL or not, used as stimulus cells, were mixed with allo antigen specific T lymphocytes in presence or absence of IFN γand IL 2. After 5 days, apoptosis of T cells was detected by TdT nick end mediated dUTP labeling (TUNEL) and flow cytometry (FCM). The affects of these two cytokines on CD34 + cells in the graft were also compared. The ratio of apoptosis of T cells was 12.1±1.5 % when CD34 + cells transfected with FasL was used as stimulus cells, much higher than that of CD34 + cells non transfected (3.2 ±1.1 %, P <0.01). And in presence of IFN γ or IL 2, the ratio reached 20.1±2.3 %, 17.6±1.3 % respectively ( P <0.01). However, IFN γ up regulated Fas expression of CD34 + cells and increased the sensibility of CD34 + cells to soluble FasL(sFasL); IL 2 showed no such affect. It is possible to induce apoptosis of the allo antigen specific T cells of grafts activated by allo antigen by exogenous Fas ligand expressed on recipient cells and this might provide a new approach for preventing GVHD and IL 2 may be more suitable for clinical application.

慢性心衰患者CD4^(+)T淋巴细胞亚群及相关细胞因子与预后的关系研究

目的:探究慢性心衰患者CD4^(+)T淋巴细胞亚群及相关细胞因子与预后的关系。方法:对锦州医科大学附属第三医院2018年1月至2020年11月收治的200例慢性心衰患者相关资料予以回顾性分析,所有患者均测定T淋巴细胞及相关细胞因子,接受1年随访以评估其预后情况,并依据预后情况分为预后良好组与预后不良组,测定患者CD4^(+)T淋巴细胞水平及相关细胞因子水平,收集患者各项资料分析其预后影响因素。结果:患者预后不良发生率为20.5%;预后不良组患者Th1细胞水平及Th1/Th2均显著高于预后良好组,Th2细胞水平明显低于预后良好组(P<0.05);预后不良组患者肿瘤坏死因子-α(TNF-α)、干扰素-γ(IFN-γ)水平高于预后良好组,而IL-4与IL-6水平低于预后良好组(P<0.05);单因素与多元Logistic回归分析结果显示,Th2细胞、Hb水平下降,Th1细胞、BNP、心功能分级上升为患者预后影响因素(P<0.05)。结论:慢性心衰患者的CD4^(+)T淋巴细胞亚群及相关细胞因子水平异常,并且与患者预后关系密切。

外周血T淋巴细胞亚群和细胞因子在儿童肺炎支原体肺炎诊断中的价值分析

目的 分析外周血T淋巴细胞亚群和细胞因子在儿童肺炎支原体肺炎(MPP)诊断中的价值。方法 选取2020年1月至2023年1月该院收治的120例MPP患儿为观察组,80例肺结核(TB)患儿为对照组,同期于该院查体中心查体的120例健康儿童为健康组。回顾性分析各组临床资料,采集受检者空腹静脉血,流式细胞仪检测各组受检者T淋巴细胞亚群CD3^(+)、CD4^(+)、CD8^(+)水平,计算CD4^(+)/CD8^(+),采用酶联免疫吸附试验检测受检者干扰素(IFN)-γ、白细胞介素-8(IL-8)、白细胞介素-10(IL-10)、白细胞介素-13(IL-13)水平,比较各组受检者外周血T淋巴细胞亚群和细胞因子水平,采用受试者工作特征(ROC)曲线评估外周血T淋巴细胞亚群和细胞因子单独和联合检测在诊断儿童MPP中的价值。结果 观察组和对照组CD3^(+)、CD4^(+)、CD4^(+)/CD8^(+)、IL-13、IL-10水平低于健康组(P<0.05),CD8^(+)、IL-8、IFN-γ水平高于健康组(P<0.05)。与对照组比较,观察组CD3^(+)、CD8^(+)、IL-10、IFN-γ水平偏高,CD4^(+)水平、CD4^(+)/CD8^(+)偏低(P<0.05),两组IL-8、IL-13水平比较差异均无统计学意义(P>0.05)。ROC曲线结果显示,CD3^(+)、CD4^(+)、CD8^(+)、CD4^(+)/CD8^(+)、IL-8、IFN-γ、IL-13、IL-10单独诊断儿童MPP的曲线下面积(AUC)分别为0.751、0.687、0.784、0.864、0.798、0.672、0.650、0.811,联合检测的AUC为0.924。结论 TB和MPP患儿发病前期免疫功能明显减退,外周血T淋巴细胞亚群和细胞因子明显异常表达,与TB患儿比较,MPP患儿CD4^(+)水平、CD4^(+)/CD8^(+)偏低,CD3^(+)、CD8^(+)、IL-10、IFN-γ水平偏高,且T淋巴细胞亚群和细胞因子水平与患儿病情变化密切相关。CD3^(+)、CD4^(+)、CD8^(+)、CD4^(+)/CD8^(+)、IL-8、IFN-γ、IL-13、IL-10联合检测为儿童MPP发病前期的甄别诊断提供了理论依据。

舌下免疫治疗对3~6岁学龄前儿童变应性鼻炎Treg/Th17细胞平衡及相关细胞因子的影响

目的评估舌下免疫治疗(sublingual immunotherapy,SLIT)对3~6岁学龄前儿童变应性鼻炎(AR)调节性T细胞(Treg)/辅助性T细胞(Th17)细胞平衡及相关细胞因子的影响。方法将70例3~6岁学龄前AR患儿分为SLIT组和药物组,对其临床资料进行回顾性分析。药物组采用单纯的对症治疗,SLIT组采用SLIT联合对症药物的治疗方案,观察随访3年。分析比较2组患儿治疗前、后Treg/Th17细胞平衡和血清转化生长因子-β(TGF-β)、白细胞介素10(IL-10)、IL-17、IL-21水平变化,以及鼻炎症状总评分(total nasal symptoms score,TNSS)、药物总评分(total medication score,TMS)、视觉模拟量表(VAS)评分。结果治疗3年后,两组的CD4^(+)CD25^(+)Foxp3^(+)Treg和CD4^(+)IL-17^(+)Th17细胞占CD4^(+)T细胞的百分率,Treg细胞和Th17细胞百分率,血清TGF-β、IL-10、IL-17、IL-21水平,鼻炎症状总评分、药物总评分和视觉模拟量表评分均显著改善(P<0.05),且SLIT组明显低于药物组(P<0.05)。结论SLIT能够调节Treg/Th17细胞平衡,改善血清TGF-β、IL-10、IL-17、IL-21水平。

茵陈五苓散对湿重于热型阻塞性黄疸胆道术后T细胞亚群的影响

目的:探讨茵陈五苓散对胆道结石引起的阻塞性黄疸患者胆道术后T细胞亚群的变化。方法:选取2021年6月至2022年3月就诊于天津市中西医结合医院肝胆胰外科诊断为良性阻塞性黄疸患者,共76例,患者随机分为对照组和观察组,在胆道术后对照组给予西医常规治疗,观察组在常规治疗基础上加用茵陈五苓散方(颗粒剂),两组治疗周期均为7 d。观察两组治疗前后外周静脉血T淋巴细胞亚群水平和细胞因子[白细胞介素(IL)-10、转化生长因子(TGF)-β_(1))]浓度变化。结果:两组患者在胆道术后治疗5 d、7 d,CD3^(+)T淋巴细胞、CD4^(+)T淋巴细胞、CD4^(+)/CD8^(+)比值均较术前1 d增加(均P<0.05),CD4^(+)CD25^(+)Treg细胞较术前1 d减少,差异有统计学意义(均P<0.05);术后5 d、7 d两组组间比较CD3^(+)、CD4^(+)T淋巴细胞、CD4^(+)/CD8^(+)比值变化,观察组较对照组升高明显,差异有统计学意义(均P<0.05),两组组内、组间CD8^(+)T淋巴细胞比较均无统计学差异(均P>0.05)。与对照组相比,观察组术后5 d、7 d,IL-10、TGF-β_(1)浓度降低(均P<0.05)。结论:胆道术后早期联合茵陈五苓散对机体细胞免疫功能恢复有重要的辅助作用,具有一定的免疫调节作用。

低剂量甲泼尼龙琥珀酸钠对重症支原体肺炎患儿T淋巴细胞亚群及炎症因子水平的影响

目的研究低剂量甲泼尼龙琥珀酸钠对重症支原体肺炎患儿T淋巴细胞亚群及炎症因子水平的影响。方法选取2019年1月—2022年1月长江大学附属荆州医院收治的100例重症支原体肺炎患儿为研究对象,按照随机数字表法将其分为观察组和对照组,每组50例。对所有患儿进行平喘、止咳化痰等对症治疗,对照组在该基础上静脉滴注阿奇霉素,第1天剂量为10 mg/kg,第2~5天剂量为5 mg/kg,5 d为1个疗程,共2个疗程;观察组在对照组基础上采用低剂量甲泼尼龙琥珀酸钠静脉滴注,第1~2天剂量为1.5~2.0 mg/kg,1次/d,第3天调整剂量为1 mg/kg,之后1周内逐渐降低剂量至停药为止。比较两组临床疗效、临床症状改善时间、治疗前后T淋巴细胞亚群(CD4^(+)、CD8^(+)、CD4^(+)/CD8^(+))、治疗前后血清炎症因子[C反应蛋白(CRP)、肿瘤坏死因子-α(TNF-α)、白细胞介素-10(IL-10)]水平,观察并记录两组不良反应发生情况。结果观察组治疗总有效率高于对照组(P<0.05);观察组肺部啰音消失时间、喘息消失时间、咳嗽减轻时间、肺部阴影消失时间短于对照组(P<0.05);观察组治疗前后CD4^(+)、CD8^(+)、CD4^(+)/CD8^(+)的差值高于对照组(P<0.05);观察组治疗前后CRP、TNF-α、IL-10的差值高于对照组(P<0.05);两组不良反应总发生率比较,差异无统计学意义(P>0.05)。结论低剂量甲泼尼龙琥珀酸钠联合阿奇霉素治疗重症支原体肺炎患儿有利于缩短各项症状改善时间,并可改善患儿免疫功能紊乱、减轻炎症反应,疗效较好、安全性较高。

T细胞亚群在肺纤维化过程中的研究进展

肺纤维化是一种以肺组织结构改变为主要特征的慢性间质性疾病,特发性肺纤维化是其中最为严重的一种。特发性肺纤维化病因不明,发病机制复杂,以T淋巴细胞为主导的免疫炎症在肺纤维化进程中发挥关键作用。根据其在免疫炎症中的不同途径将T细胞分为不同亚群:Th细胞、Treg细胞、Tc细胞及NKT细胞。不同T淋巴细胞亚群及其介导的细胞因子在肺纤维化中高度表达,通过释放或抑制炎症细胞因子的方式调节肺纤维化中的免疫损伤及炎症反应,进而影响肺组织损伤、胶原蛋白分泌及肌成纤维细胞增生的程度,以此参与肺纤维化的进程。本文围绕T细胞亚群及其诱导的细胞因子在肺纤维化进程中的不同病理反应进行综述,探讨其在肺纤维化进程中的作用机制,可为肺纤维化的临床治疗和基础研究提供更深层次的探索方向。

麻黄附子细辛汤对哮喘患者Th1、Th2型细胞因子及淋巴细胞凋亡的影响

目的探讨麻黄附子细辛汤对哮喘患者Th1、Th2型细胞因子及淋巴细胞凋亡的影响。方法选择2021年1月—2021年12月治疗的哮喘患者64例作为对象,选取入组患者入院后抽取的外周静脉血样本5mL,完成单个核细胞悬液制备,将制备的细胞随机分为空白对照组、地塞米松组与麻黄附子细辛汤组。空白对照组给予常规培养液培养,地塞米松组加入3μL浓度为10-5/mol的地塞米松溶液;麻黄附子细辛汤组加入麻黄附子细辛汤25μL,连续进行48 h干预,比较两组Th1、Th2、T淋巴细胞水平及细胞凋亡率。结果麻黄附子细辛汤组IFN-r、TNF-β水平,均高于地塞米松组与空白对照组(P<0.05);麻黄附子细辛汤组IL-4、IL-5水平,均低于地塞米松组与空白对照组(P<0.05);地塞米松组IFN-r、TNF-β水平,均高于空白对照组(P<0.05);地塞米松组IL-4、IL-5水平,均低于空白对照组(P<0.05);麻黄附子细辛汤组CD_(3)^(+)、CD_(4)^(+)、CD_(4)^(+)CD_(8)^(+)水平,均高于地塞米松组与空白对照组(P<0.05);麻黄附子细辛汤组CD_(8)^(+)水平,低于地塞米松组与空白对照组(P<0.05);地塞米松组CD_(3)^(+)、CD_(4)^(+)、CD_(4)^(+)CD_(8)^(+)水平,均高于空白对照组(P<0.05);地塞米松组CD_(8)^(+)水平低于空白对照组(P<0.05);麻黄附子细辛汤组干预后淋巴细胞凋亡率为23.59%,高于地塞米松组7.34%与空白对照组4.26%(P<0.05)。结论麻黄附子细辛汤用于哮喘中有助于促进Th2细胞凋亡,促进机体恢复Th1/Th2平衡,从而抑制哮喘发病作用。