Analysis of the Peripheral Blood Helper T-Cell 17- Cell Level and Monocyte/Lymphocyte Ratio for Colorectal Cancer Prognosis Prediction

Objective: To investigate the value of peripheral blood helper T cell 17 cell level and monocyte/lymphocyte ratio to predict the prognosis of colorectal cancer patients. Methods: 74 colorectal cancer patients who attended Hospital 960 from January 2021 to January 2022 were retrospectively analyzed. Clinical data of the patients were collected, including gender, age, and histologic type. Immunohistochemical indexes such as Th17 cell level and monocyte/ lymphocyte ratio in the peripheral blood of patients were also collected. The prognosis of patients after treatment, as well as peripheral blood Th17 and MLR levels, were observed and analyzed. Results: After follow-up after treatment, in the final 74 patients, the prognosis was good in 32 patients, accounting for 43.24%, and the prognosis was bad in 42 patients, accounting for 56.76%. There were no significant differences between the average age and tumor diameters of the good prognosis and poor prognosis groups (P > 0.05). However, the TNM staging, intervention taken, differentiation degree, presence of distant metastasis, presence of lymph node metastasis, Th17 level, and MLR level are significantly different between the two groups (P < 0.05). Conclusion: Peripheral blood Th17 and MLR have predictive value for the prognosis of colorectal cancer patients, and high levels of peripheral blood Th17 and MLR imply poor prognosis. The detection of peripheral blood Th17 and MLR levels is simple and convenient and can be used as indicators to provide a reference for the prognostic assessment of colorectal cancer patients.

CagA+ H pylori infection is associated with polarization of T helper cell immune responses in gastric carcinogenesis

AIM:To characterize the immune responses including local and systemic immunity induced by infection with H pylori,especially with CagA+ H pylori strains and the underlying immunopathogenesis. METHODS:A total of 711 patients with different gastric lesions were recruited to determine the presence of H pylori infection and cytotoxin associated protein A (CagA),the presence of T helper (Th) cells and regulatory T (Treg) cells in peripheral blood mononuclear cells (PBMCs),expression of plasma cytokines,and RNA and protein expression of IFN-γ and IL-4 in gastric biopsies and PBMCs were determined by rapid urease test,urea 14C breath test,immunoblotting test,flow cytometry ,real time RT-PCR and immunohistochemistry. RESULTS:Of the patients,629 (88.47%) were infected with H pylori ; 506 (71.16%) with CagA+ and 123 (17.30%) with CagA- strains. Among patients infected with CagA+ H pylori strains,Th1-mediated cellular immunity was associated with earlier stages of gastric carcinogenesis,while Th2-mediated humoral immunity dominated the advanced stages and was negatively associated with an abundance of Treg cells. However,there was no such tendency in Th1/Th2 polarization in patients infected with CagA- H pylori strains and those without H pylori infection. CONCLUSION:Polarization of Th cell immune responses occurs in patients with CagA+ H pyloriinfection,which is associated with the stage and severity of gastric pathology during the progression of gastric carcinogenesis. This finding provides further evidence for a causal role of CagA+ H pylori infection in the immunopathogenesis of gastric cancer.

Impaired balance of T helper 17/T regulatory cells in carbon tetrachloride-induced liver fibrosis in mice

AIM: To investigate the effect of T helper (Th) 17/T regulatory (Treg) cells on hepatic fibrosis in mice and its possible mechanism.

T cell immune response is correlated with fibrosis and inflammatory activity in hepatitis B cirrhotics

AIM： TO explore the relationship among interferon-γ （IFN-γ） activity, fibrogenesis, T cell immune responses and hepatic inflammatory activity. METHODS： Peripheral blood samples from a total of 43 hepatitis B cirrhotic patients （LC） and 19 healthy controls （NC） were collected to measure their serum levels of IFN-γ, interleukin-2 （IL-2）, soluble interleukin-2 receptor （sIL-2R）, interleukin-10 （IL-10） and three serological markers of fibrosis including hyaluronic acid （HA）, procollagen type III peptide （PIIIP）, and type iV collagen were measured using a double antibody sandwich ELISA. Also, serum total bilirubin （TB） and alanine aminotransferase （ALT） were measured by routine measures. RESULTS： The concentrations of serological markers of fibrosis in patients with active cirrhosis （ALC） were significantly higher than those in stationary liver cirrhosis （SLC） or NC groups. The levels of serological markers in HBeAg-positive patients were significantly higher than those in HBeAg-negative patients. In SLC and ALC patients, a negative linear correlation was found between IFN-γ levels and the serological markers of fibrosis. IFN-γ and IL-2 levels in the ALC group were significantly higher than those in the SLC and NC groups, but the statistical difference was not significant between the latter two. In contrast, IL-10 levels in the SLC group were significantly higher than that in the NC group, but no significant difference was found between SLC and ALC groups. The sIL-2R level was elevated gradually in all these groups, and the differences were significant. Positive linear correlations were seen between IFN-γ activity and ALT levels （r = 0.339, P 〈 0.05）, and IL-2 activity and TB levels （r = 0.517, P 〈 0.05）. sIL-2R expression was positively correlated with both ALT and TB levels （r = 0.324, 0.455, P 〈 0.05）, whereas there was no statistically significant correlation between IL-10 expression and serum ALT and TB levels （r = -0.102, -0.093, P 〉 0.05）. Finally, there was a positive correlation between IFN-γ and IL-2 levels. CONCLUSION： T cell immune responses are correlated with fibrosis and hepatic inflammatory activity and may play an important role in liver cirrhosis.

Relationship between Th17 immune response and cancer

Cancer is the second leading cause of death worldwide and epidemiological projections predict growing cancer mortality rates in the next decades.Cancer has a close relationship with the immune system and,although Th17 cells are known to play roles in the immune response against microorganisms and in autoimmunity,studies have emphasized their roles in cancer pathogenesis.The Th17 immune response profile is involved in several types of cancer including urogenital,respiratory,gastrointestinal,and skin cancers.This type of immune response exerts pro and antitumor functions through several mechanisms,depending on the context of each tumor,including the protumor angiogenesis and exhaustion of T cells and the antitumor recruitment of T cells and neutrophils to the tumor microenvironment.Among other factors,the paradoxical behavior of Th17 cells in this setting has been attributed to its plasticity potential,which makes possible their conversion into other types of T cells such as Th17/Treg and Th17/Th1 cells.Interleukin(IL)-17 stands out among Th17-related cytokines since it modulates pathways and interacts with other cell profiles in the tumor microenvironment,which allow Th17 cells to prevail in tumors.Moreover,the IL-17 is able to mediate pro and antitumor processes that influence the development and progression of various cancers,being associated with variable clinical outcomes.The understanding of the relationship between the Th17 immune response and cancer as well as the singularities of carcinogenic processes in each type of tumor is crucial for the identification of new therapeutic targets.

Upregulated adenosine 2A receptor accelerates post-infectious irritable bowel syndrome by promoting CD4+T cells’T helper 17 polarization

BACKGROUND Post-infectious irritable bowel syndrome(PI-IBS)is generally regarded as a functional disease.Several recent studies have reported the involvement of lowgrade inflammation and immunological dysfunction in PI-IBS.T helper 17(Th17)polarization occurs in IBS.Adenosine and its receptors participate in intestinal inflammation and immune regulation.AIM To investigate the role of Th17 polarization of CD4+T cells regulated by adenosine 2A receptor(A2AR)in PI-IBS.METHODS A PI-IBS model was established by infecting mice with Trichinella spiralis.The intestinal A2AR and CD4+T lymphocytes were detected by immunohistochemistry,and the inflammatory cytokines were detected by enzyme-linked immunoassay.CD4+T lymphocytes present in the animal’s spleen were separated and cultured with or without A2AR agonist and antagonist.Western blotting and real-time quantitative polymerase chain reaction were performed to determine the effect of A2AR on the cells and intestinal tissue.Cytokine production was determined.The protein and mRNA levels of A2AR associated signaling pathway molecules were also evaluated.Furthermore,A2AR agonist and antagonist were injected into the mouse model and the clinical features were observed.RESULTS The PI-IBS mouse model showed increased expression of ATP and A2AR(P<0.05),and inhibition of A2AR improved the clinical features in PI-IBS,including the abdominal withdrawal reflex and colon transportation test(P<0.05).The number of intestinal CD4+T cells and interleukin-17(IL-17)protein levels increased during PI-IBS,which was reversed by administration of the A2AR antagonist(P<0.05).CD4+T cells expressed A2AR and produced IL-17 in vitro,which was regulated by the A2AR agonist and antagonist.The A2AR antagonist increased the production of IL-17 by CD4+T cells via the Janus kinase-signal transducer and activator of transcriptionreceptor-related orphan receptorγsignaling pathway.CONCLUSION The results of the present study suggested that the upregulation of A2AR increases PI-IBS by promoting the Th17 polarization of CD4+T cells.

Involvement of glycated albumin in adipose-derived-stem cellmediated interleukin 17 secreting T helper cell activation

BACKGROUND Advanced glycation end products(AGE)are a marker of various diseases including diabetes,in which they participate to vascular damages such as retinopathy,nephropathy and coronaropathy.Besides those vascular complications,AGE are involved in altered metabolism in many tissues,including adipose tissue(AT)where they contribute to reduced glucose uptake and attenuation of insulin sensitivity.AGE are known to contribute to type 1 diabetes(T1D)through promotion of interleukin(IL)-17 secreting T helper(Th17)cells.AIM To investigate whether lean adipose-derived stem cells(ASC)could be able to induce IL-17A secretion,with the help of AGE.METHODS As we have recently demonstrated that ASC are involved in Th17 cell promotion when they are harvested from obese AT,we used the same co-culture model to measure the impact of glycated human serum albumin(G-HSA)on human lean ASC interacting with blood mononuclear cells.IL-17A and pro-inflammatory cytokine secretion were measured by ELISA.Receptor of AGE(RAGE)together with intercellular adhesion molecule 1(ICAM-1),human leukocyte Antigen(HLA)-DR,cluster of differentiation(CD)41,and CD62P surface expressions were measured by cytofluorometry.Anti-RAGE specific monoclonal antibody was added to co-cultures in order to evaluate the role of RAGE in IL-17A production.RESULTS Results showed that whereas 1%G-HSA only weakly potentiated the production of IL-17A by T cells interacting with ASC harvested from obese subjects,it markedly increased IL-17A,but also interferon gamma and tumor necrosis factor alpha production in the presence of ASC harvested from lean individuals.This was associated with increased expression of RAGE and HLA-DR molecule by cocultured cells.Moreover,RAGE blockade experiments demonstrated RAGE specific involvement in lean ASC-mediated Th-17 cell activation.Finally,platelet aggregation and ICAM-1,which are known to be induced by AGE,were not involved in these processes.CONCLUSION Thus,our results demonstrated that G-HSA potentiated lean ASC-mediated IL-17A production in AT,suggesting a new mechanism by which AGE could contribute to T1D pathophysiology.

Dynamic interplay of T helpercell subsets in experimental autoimmune encephalomyelitis

AIM： To investigate the temporal onset and dynamic interplay of CD4^＋ T helper cell subsets in experimental autoimmune encephalomyelitis （EAE）.METHODS： EAE was induced in C57BL/6 mice by im-munization with myelin oligodendrocyte glycoprotein peptide p35-55. The clinical signs were scored and the tissue samples and immune cells isolated for analysis at different phases of EAE. The expression levels of inflammatory cytokines and related transcription fac-tors were detected by quantitative reverse transcription polymerase chain reaction （PCR） and enzyme linked immunosorbant assay （ELISA）. The percentages of Th1, Th17, Th2, Treg and memory T cell subsets in EAE were analyzed by immunostaining and fow cytometry. The data were analyzed by statistical techniques.RESULTS： Quantitative real-time PCR analysis showed that EAE mice express elevated levels of Th1 [interferon gamma （ IFNγ ）, interleukin （ IL ） -12p40 ], Th17 [ IL-17 , related orphan receptor gamma （RORγ ）, IL-12p40] and Treg [ Foxp3, Epstein-Barr virus induced gene 3 （EBI3）, IL-10] genes in the central nervous system at the peak of the disease. Whereas, the expression of Th1 （ IFNγ , T-bet, IL-12p35, IL-12p40 ）, Th17 （RORγ, IL-12p40 ）, Th2 （ IL-4） and Treg （ Foxp3, EBI3） response genes was reduced in the spleen during pre-disease but gradually recovered at the later phases of EAE. ELISA and fow cytometry analyses showed an increase in Th17 re-sponse in the periphery, while Th1 response remained unchanged at the peak of disease. The mRNA levels of IFNγ, IL-17 and IL-12p40 in the brain were increased by 23 （P 〈 0.001）, 9 （P 〈 0.05） and 14 （P 〈 0.01） fold, respectively, on day 21 of EAE. Conversely, the mRNA expression of IL-10 was increased by 2 fold （P 〈 0.05） in the spleen on day 21. CD4^＋CD25^＋Foxp3＋Treg response was reduced at pre-disease but recovered to na？ve levels by disease onset. The percentage of CD25 Foxp3 regulatory T cells decreased from 7.7% in the na？ve to 3.2% （P 〈 0.05） on day 7 of EAE, which then increased to 8.4% by day 28. Moreover, the CD4＋CD127＋CD44high memory T cell response was increased during the onset and recovery phases of EAE. The memory and effector cells showed an in-verse relationship in EAE, where the memory T cells increased from 12.3% in nave to 20% by day 21, and the effector cells decreased from 32% in na？ve to 21% （P 〈 0.01） by day 21. The wild type C57BL/6 mice with EAE showed elevated levels of effector-memory T cells （TEM） with concomitant reduction in central-memory T cells （TCM）, but the EAE-resistant IL-7R defcient mice showed elevated TCM with no effect on TEM cells in EAE.CONCLUSION： Our fndings highlight the temporal on-set and dynamic interplay of effector, memory and regu-latory CD4^＋ T cell subsets and its signifcance to clinical outcome in EAE and other autoimmune diseases.

Evaluation of virus-specific cellular immune response in transplant patients

Virus-specific immune responses have a major impact on the outcome of the infection. Viral agents that are characterized by latency, such as herpesviruses and polyomaviruses, require a continuous immune control to reduce the extent of viral reactivation, as viral clearance cannot be accomplished, independently from the anti-viral treatment. In transplant patients, morbidity and mortality related to viral infections are significantly increased. In fact, the key steps of activation of T-cells are major target for anti-rejection immunosuppressive therapy and anti-viral immune response may be altered when infected cells and cellular effectors of immune response coexist in a transplanted organ. The role of cellular immune response in controlling viral replication and the main methods employed for its evaluation will be discussed. In particular, the main features, including both advantages and limitations, of available assays, including intracellular cytokine staining, major histocompatibility complex- multimer-based assays, Elispot assay, and Quanti FERON test, will be described. The potential applications of these assays in the transplant context will be discussed, particularly in relation to cytomegalovirus and polyomavirus BK infection. The relevance of introducing viro-immunological monitoring, beside virological monitoring, in order to identify the risk profile for viral infections in the transplant patients will allows for define a patient-tailored clinical management, particular in terms of modulation of immunosuppressive therapy and anti-viral administration.

Expression of Helper T Cell Type 17 and CD4^(+)CD25^(+)Tregs in AMA-M2 Positive PBC Patients

Objective:To investigate the expression and impact of helper T cell type 17 and CD4^(+)CD25^(+)regulatory T(Treg)cells in anti-mitochondrial M2 antibody(AMA-M2)positive primary biliary cholangitis(PBC)patients.Methods:Thirty PBC patients with positive AMA(M2 type)(antibody titer above 1:320)by indirect immunofluorescence assay under the Affiliated Hospital of Hebei University from November 2021 to August 2022 were selected as the experimental group,while 30 healthy individuals were selected as controls.The subjects were observed and analyzed for AFP-L3 and immunoglobulin expression.Results:The levels of Th17,Treg,Th17/Treg,interleukin(IL)-17A,IL-2,IL-10,and transforming growth factor(TGF)-β1 cytokines of the experimental group were 2.61±0.48,1.15±0.54,2.41±0.47,310.94±21.14,276.36±36.12,317.89±28.97,and 197.48±31.04,respectively,while those of the control group were 1.14±0.58,0.88±0.29,1.47±0.25,9.69±1.26,57.69±2.45,154.01±19.87,and 514.36±36.12,respectively,wherein P<0.05;the CD4^(+),CD8^(+),and CD4^(+)/CD8^(+)of the experimental group were 39.48±4.19,20.12±4.41,and 1.76±0.14,respectively,while those of the control group were 35.78±4.21,22.01±4.16,and 1.51±0.13,respectively,wherein P<0.05.Conclusion:In patients with PBC,there is a significant imbalance in Th17/Treg cells.Il-17A,IL-2,IL-10,and TGF-β1 cytokines play important roles in the differentiation and functional expression of both Th17 and Treg cells.

核孔蛋白160基因对肾病综合征小鼠肾脏辅助性T细胞17/调节性T细胞免疫平衡的影响

目的探讨核孔蛋白160(NUP160)基因对肾病综合征小鼠肾脏辅助性T细胞17(Th17)/调节性T细胞(Treg)免疫平衡的影响。方法将30只小鼠随机分为空白组(n=10)和造模组(n=20)。造模组小鼠经尾静脉注射阿霉素溶液(7.5 mg·kg-1)制备原发性肾病综合征(PNS)模型,空白组小鼠经尾静脉注射等容积的生理盐水。造模成功后将造模组小鼠随机分为PNS组和NUP160组,每组10只。NUP160组小鼠经尾静脉注射NUP160(10 mg·kg-1),每日1次;PNS组和空白组小鼠经尾静脉注射等量生理盐水,每日1次;3组小鼠均连续干预4周。给药0、2、4周时,应用生化自动检测仪检测小鼠24 h尿蛋白定量(24 h HUPQ);给药结束后,采用酶联免疫吸附试验法检测各组小鼠血清白细胞介素(IL)-17和IL-10水平;苏木精-伊红(HE)染色、过碘酸希夫(PAS)染色、Masson染色法观察各组小鼠肾组织病理学变化;流式细胞术检测各组小鼠肾组织中Th17、Treg细胞比例。结果给药0、2、4周时,PNS组和NUP160组小鼠24 h HUPQ显著高于空白组(P<0.05)。给药0周时,PNS组与NUP160组小鼠24 h HUPQ比较差异无统计学意义(P>0.05);给药2、4周时,NUP160组小鼠24 h HUPQ显著低于PNS组(P<0.05)。与空白组比较,PNS组和NUP160组小鼠血清IL-17水平显著升高,IL-10水平显著降低(P<0.05);与PNS组比较,NUP160组小鼠血清IL-17水平显著降低,IL-10水平显著升高(P<0.05)。空白组小鼠肾组织无明显病理学变化。与空白组相比,PNS组小鼠HE染色发现肾小球细胞排列紊乱,肾小球轻度萎缩,少许炎症细胞浸润,球囊壁轻度增厚,小球囊腔轻度扩张;PAS染色发现系膜出现增生,肾间质可见炎症细胞浸润;Masson染色发现小鼠肾小球基底膜和间质蓝色胶原沉积明显增多,组织纤维化程度显著升高。与PNS组相比,NUP160组小鼠肾组织以上症状均得到明显改善。与空白组比较,PNS组和NUP160组小鼠肾组织中Th17占比、Th17/Treg比值显著增加,Treg占比显著降低(P<0.05);与PNS组比较,NUP160组小鼠肾组织中Th17占比、Th17/Treg比值显著降低,Treg占比显著增加(P<0.05)。结论NUP160可调节PNS小鼠的Th17/Treg免疫平衡,进而发挥改善PNS的作用。

苦参碱调节RhoA-ROCK信号通路对冠心病模型大鼠Th17/Treg细胞平衡的影响

目的探讨苦参碱(Matrine)对冠心病(coronary heart disease,CHD)大鼠辅助T细胞17(helper T cell 17,Th17)/调节性T细胞(regulatory T cells,Treg)细胞平衡及Ras同源基因家族成员A(RhoA)-Rho相关的卷曲螺旋激酶(ROCK)信号通路的影响。方法建立冠心病模型,将实验大鼠分为对照组、模型组、苦参碱低剂量(50 mg·kg^(-1))组、苦参碱高剂量(200 mg·kg^(-1))组及苦参碱高剂量(200 mg·kg^(-1))+LPA组(10 mg·kg^(-1))。超声心动图进行大鼠心功能检测;酶联免疫吸附试验(enzyme linked immunosorbent assay,ELISA)法进行白细胞介素17(IL-17)、转化生长因子β(TGF-β)水平检测;流式细胞术检测Th17、Treg数量及Th17/Treg比值;免疫组化进行内皮型一氧化氮合酶(eNOS)、内皮素1(ET-1)蛋白表达水平检测;Masson染色进行大鼠心肌组织的病理形态变化观察;TTC染色检测各组大鼠心肌梗死情况;TUNEL染色进行心肌组织中细胞凋亡情况检测;试剂盒检测RhoA活性;Western Blot法进行半胱氨酸天冬氨酸蛋白酶3(Caspase-3)、B细胞淋巴瘤因子2(Bcl-2)、Bcl-2相关X蛋白(Bax)、RhoA、ROCK1、ROCK2蛋白表达水平检测。结果与对照组比较,模型组心肌组织有大量蓝色胶原纤维沉积,左室舒张末期容积(left ventricular end-diastolic volume,LVEDV)、左室收缩末期容积(left ventricular end-systolic volume,LVESV)、IL-17、Th17、Th17/Treg、ET-1、心肌梗死面积、细胞凋亡率、TUNEL阳性率、Bax、Caspase-3、RhoA活性、RhoA、ROCK1、ROCK2表达水平明显升高,左室射血分数(left ventricular ejection fraction,LVEF)、左室缩短分数(left ventricular shortening fraction,LVFS)、TGF-β、Treg、eNOS、Bcl-2表达水平明显降低(P<0.05)。与模型组比较,Matrine-L组、苦参碱高剂量组心肌组织蓝色胶原纤维逐渐减少,LVEDV、LVESV、IL-17、Th17、Th17/Treg、ET-1、心肌梗死面积、细胞凋亡率、TUNEL阳性率、Bax、Caspase-3、RhoA活性、RhoA、ROCK1、ROCK2表达水平依次明显降低,LVEF、LVFS、TGF-β、Treg、eNOS、Bcl-2表达水平依次明显升高(P<0.05)。与苦参碱高剂量组比较,苦参碱高剂量+LPA组心肌组织蓝色胶原纤维增多,LVEDV、LVESV、IL-17、Th17、Th17/Treg、ET-1、心肌梗死面积、细胞凋亡率、TUNEL阳性率、Bax、Caspase-3、RhoA活性、RhoA、ROCK1、ROCK2表达水平明显升高,LVEF、LVFS、TGF-β、Treg、eNOS、Bcl-2表达水平明显降低(P<0.05)。结论苦参碱通过抑制RhoAROCK信号通路调节Th17/Treg细胞平衡,改善冠心病大鼠心肌损伤。

结直肠癌组织高表达IL-35对Th1和Th17可塑性的作用

目的 探讨结直肠癌组织中高表达的抑制性细胞因子白细胞介素(IL)-35对辅助性T细胞1(Th1)和辅助性T细胞17(Th17)可塑性的作用。方法 选取2019年3月—2020年2月上海交通大学医学院附属新华医院结直肠癌患者90例(结直肠癌组)和健康体检者28名(正常对照组)。采用流式细胞术检测结直肠癌组和正常对照组外周血Th1百分比(Th1%)和Th17百分比(Th17%)。基于Kaplan-Meier Plotter数据库分析γ-干扰素(IFN-γ)和IL-17A高表达对结直肠癌患者总生存期和预后不良的影响。采用免疫组化法检测结直肠癌患者癌组织和癌旁组织(距肿瘤边缘≥2 cm)中IL-35的表达。采用酶联免疫吸附试验检测结直肠癌患者和正常对照者血清IL-35水平。采用体外诱导Th1分化实验观察IL-35对Th1分泌IL-17A和IFN-γ的影响。结果与正常对照组比较,结直肠癌组Th1%显著降低(P=0.019),Th17%显著升高(P<0.001)。结直肠癌组Th1%与Th17%的r2值(0.393 4)与正常对照组(0.041 0)比较差异有统计学意义(P=0.007)。基于KaplanMeierPlotter数据库的分析结果显示,IFN-γmRNA低表达是结直肠癌患者总生存期缩短的危险因素[风险比(HR)=0.74,95%可信区间(CI)为0.58~0.94,P=0.013],IL-17A mRNA高表达是结直肠癌患者总生存期缩短的危险因素(HR=1.26,95%CI为1.02~1.59,P=0.020)。结直肠癌患者癌组织IL-35表达显著高于癌旁组织(P<0.001)。Ⅰ~Ⅱ期(早期)和Ⅲ~Ⅳ期(晚期)结直肠癌患者血清IL-35水平均显著高于正常对照者(P<0.05)。体外诱导Th1分化实验结果显示,IL-35可降低Th1中IFN-γ表达,提高IL-17A表达。结论 结直肠癌患者外周血Th1和Th17呈异常变化,且IL-35表达增加。高表达的IL-35可降低Th1中IFN-γ表达,提高IL-17A表达。

Th17和调节性T细胞在人类免疫缺陷病毒疾病进展中的作用及其调控机制

目的本研究通过观察人类免疫缺陷病毒(HIV)感染者外周血Th17、Treg细胞及其相关转录因子、细胞因子的表达,进一步揭示Th17、Treg细胞的调控机制及其在HIV感染者疾病进展中的作用。方法选取2019年1月—2019年10月河南省上蔡县HIV感染者80例作为研究组,选取同地区健康人群20例作为对照组。采用流式细胞术检测外周血CD4^(+)T、CD8^(+)T及外周血单个核细胞Th17、Treg,酶联免疫吸附试验检测血浆中细胞因子白细胞介素-17(IL-17)、IL-23水平,实时聚合酶链反应检测转录因子ROR-γt及Foxp3 mRNA表达,Pearson法分析Th17、Treg与CD4^(+)T的相关性。结果研究组CD4^(+)T、CD4^(+)T/CD3+T、CD4^(+)T/CD8^(+)T低于对照组(P<0.05),CD8^(+)T和CD8^(+)T/CD3+T高于对照组(P<0.05)。研究组Th17/CD4^(+)T、Th17/Treg低于对照组(P<0.05),Treg/CD4^(+)T高于对照组(P<0.05)。研究组ROR-γtmRNA高于对照组(P<0.05),Foxp3mRNA低于对照组(P<0.05)。研究组IL-17、IL-23水平低于对照组(P<0.05)。Pearson相关性分析结果表示,Th17细胞百分比与CD4^(+)T细胞计数呈正相关(r=0.293,P<0.05),Treg细胞百分比与CD4^(+)T细胞计数呈负相关(r=-0.198,P<0.05)。结论HIV感染能降低Th17细胞、升高Treg细胞,破坏机体免疫平衡,其机制与调控转录因子ROR-γt、Foxp3及细胞因子IL-17、IL-23表达有关,Th17细胞、Treg细胞与HIV感染者疾病进展密切相关。

缺血性脑卒中后抑郁患者外周血CDC42、Th17细胞表达及与抑郁程度的相关性分析

目的观察缺血性脑卒中患者外周血细胞分裂周期蛋白42(CDC42)、辅助性T细胞17(Th17)表达并探究其表达与患者抑郁程度的相关性。方法选取2022年1月—2023年1月河北北方学院附属第一医院收治的200例缺血性脑卒中患者为观察组,另选取同期该院200例体检健康者为对照组。患者入院后均接受常规抗血小板聚集、降脂等对症支持治疗,并采用多感官刺激方案对患者进行干预。采用蒙哥马利抑郁评定量表评估患者的抑郁状态,并将患者分为无抑郁组116例、轻度抑郁组38例、中度抑郁组31例、重度抑郁组15例。比较各组医院焦虑抑郁量表(HADS)和简易精神状态评价量表(MMSE)评分,比较观察组干预前后日常生活活动能力(ADL)评分;检测各组外周血CDC42 mRNA、Th17细胞、调节性T细胞(Treg)、Th17/Treg表达。以Pearson相关系数分析HADS评分与患者外周血CDC42 mRNA、Th17细胞、Treg细胞、Th17/Treg表达水平的相关性。结果观察组HADS-A评分、HADS-D评分均高于对照组(P<0.05),MMSE评分低于对照组(P<0.05)。重度抑郁组HADS-A评分、HADS-D评分高于其他组(P<0.05),MMSE评分低于其他组(P<0.05);中度抑郁组HADS-A评分、HADS-D评分高于轻度抑郁组和无抑郁组(P<0.05),MMSE评分低于轻度抑郁组和无抑郁组(P<0.05);轻度抑郁组HADS-A评分、HADS-D评分高于无抑郁组(P<0.05),MMSE评分低于无抑郁组(P<0.05)。观察组外周血CDC42 mRNA、Treg细胞的表达水平低于对照组(P<0.05),外周血Th17细胞、Th17/Treg的表达水平高于对照组(P<0.05)。重度抑郁组Th17细胞、Th17/Treg表达水平高于其他组(P<0.05),Treg细胞表达水平低于另外组(P<0.05),中度抑郁组Th17细胞、Th17/Treg表达水平高于轻度抑郁组、无抑郁组(P<0.05),Treg细胞表达水平低于轻度抑郁组、无抑郁组(P<0.05),轻度抑郁组Th17细胞、Th17/Treg表达水平高于无抑郁组(P<0.05),Treg细胞表达水平低于无抑郁组(P<0.05)。观察组干预后HADS-A评分、HADS-D评分低于干预前(P<0.05),MMSE评分、ADL评分高于干预前(P<0.05)。观察组干预前后外周血CDC42 mRNA表达水平比较,差异无统计学意义(P>0.05)。观察组干预后外周血Th17细胞、Th17/Treg表达水平低于干预前(P<0.05),外周血Treg细胞表达水平高于干预前(P<0.05)。观察组患者外周血Th17细胞、Th17/Treg表达与HADS评分呈正相关(r=0.673、0.603,均P<0.05),外周血Treg细胞表达与HADS评分呈负相关(r=-0.586,P<0.05),外周血CDC42 mRNA与HADS评分无相关性(r=-0.375,P>0.05)。结论缺血性脑卒中患者外周血CDC42mRNA表达明显降低、Th17细胞表达明显升高,随着患者抑郁程度加重,Th17细胞表达逐渐升高,而CDC42mRNA表达与患者的抑郁程度无相关性,可通过合理的干预措施减轻抑郁情绪,防止病情加重。

针刺联合硫酸羟氯喹对原发性干燥综合征患者辅助性T细胞-17/调节性T细胞比率的影响

目的观察针刺联合硫酸羟氯喹对原发性干燥综合征患者辅助性T细胞-17(Th-17)/调节性T细胞(Treg)比率的影响。方法选取2019年12月至2020年12月山西省中医院门诊及住院收治的52例原发性干燥综合征患者作为研究对象,按照随机数字表法分为治疗组(26例)与对照组(26例)。对照组患者给予口服硫酸羟氯喹治疗,治疗组在对照组基础上联合针刺治疗。比较两组临床疗效及治疗前后中医证候积分、泪液流率、唾液流率、红细胞沉降率(ESR)、C反应蛋白(CRP)、血清免疫球蛋白G(IgG)水平及Th17/Treg比率变化。结果治疗组患者治疗后临床总有效率高于对照组,差异有统计学意义(P<0.05)。治疗组患者治疗后中医证候积分低于对照组;泪液流率、唾液流率高于对照组;ESR、CRP、IgG水平低于对照组;Th17/Treg比率低于对照组,差异有统计学意义(P<0.05)。结论针刺联合硫酸羟氯喹治疗原发性干燥综合征患者疗效确切,安全可靠,能明显改善口干、眼干症状,降低免疫反应,可降低中医证候积分,升高泪液流率、唾液流率,降低Th17/Treg比率,调节免疫功能。

口腔扁平苔藓患者血清miR-155-5p、SOCS1 mRNA水平与病损程度及Th17/Treg失衡的关系

目的探讨口腔扁平苔藓(OLP)患者血清微小核糖核酸-155-5p(miR-155-5p)、细胞因子信号传导抑制蛋白1(SOCS1)mRNA水平与病损程度及辅助性T细胞17(Th17)/调节性T细胞(Treg)失衡的关系。方法选择OLP患者76例(观察组),其中非糜烂型28例、糜烂型48例(轻中度糜烂29例、重度糜烂19例),同期随机另选体检健康的志愿者50例(对照组),采集所有研究对象外周静脉血,采用实时荧光定量聚合酶链式反应检测血清miR-155-5p、SOCS1 mRNA,采用流式细胞术检测Th17、Treg比例并计算Th17/Treg。采用Pearson/Spearman相关分析法分析OLP患者血清miR-155-5p水平与SOCS1 mRNA水平的关系以及二者与外周血Th17、Treg比例和Th17/Treg的关系。结果与对照组比较,观察组血清miR-155-5p水平以及外周血Th17比例和Th17/Treg升高,血清SOCS1 mRNA水平和外周血Treg比例降低(P均<0.05)。非糜烂型OLP及糜烂型OLP轻中度糜烂、重度糜烂患者血清miR-155-5p水平以及外周血Th17比例和Th17/Treg逐渐升高,血清SOCS1 mRNA水平和外周血Treg比例逐渐降低(P均<0.05)。相关性分析显示,OLP患者血清miR-155-5p水平与血清SOCS1 mRNA水平呈负相关关系(r=-0.809,P<0.01);血清miR-155-5p水平与外周血Th17比例、Th17/Treg均呈正相关关系(r/rs分别为0.819、0.820,P均<0.05),与Treg比例呈负相关关系(r=-0.735,P<0.05);血清SOCS1 mRNA水平与外周血Th17比例、Th17/Treg均呈负相关关系(r/rs分别为-0.770、-0.790,P均<0.05),与Treg比例呈正相关关系(r=0.733,P<0.05)。结论OLP患者血清miR-155-5p水平升高、血清SOCS1 mRNA水平降低,二者水平变化与病损程度加重和Th17/Treg失衡密切相关。

复方万年青胶囊联合化疗对中晚期非小细胞肺癌患者辅助性T细胞17/调节性T细胞失衡和血清凋亡因子的影响

目的 探讨复方万年青胶囊联合吉西他滨+顺铂(GP)化疗方案对中晚期非小细胞肺癌(NSCLC)患者辅助性T细胞17(Th17)/调节性T细胞(Treg)失衡和血清凋亡因子的影响。方法 选择2018年3月至2021年2月西安医学院第一附属医院收治的98例中晚期NSCLC患者。按照随机数字表法将患者分为对照组和观察组,各49例。对照组接受GP化疗方案治疗;观察组在对照组基础上联合复方万年青胶囊口服治疗。以21 d为1个疗程,完成4个疗程的化疗。比较2组临床疗效以及治疗前后血清Th17、Treg、Th17/Treg比值、肿瘤标志物水平、凋亡因子水平。观察2组治疗期间不良反应发生情况。所有患者随访2年,记录无进展生存期(PFS)和总生存期。结果 治疗后,观察组客观缓解率和疾病控制率均高于对照组(均P<0.05)。治疗后,2组Treg均低于治疗前、且观察组低于对照组[(2.9±0.5)%比(4.8±0.8)%],2组Th17、Th17/Treg比值均高于治疗前、且观察组均高于对照组[(1.42±0.13)%比(1.25±0.11)%、(0.49±0.10)比(0.26±0.08)](均P<0.05);2组癌胚抗原、细胞角蛋白19片段、糖类抗原125、B淋巴细胞瘤基因2(Bcl-2)水平均低于治疗前、且观察组均低于对照组,2组Bcl-2相关X蛋白水平均高于治疗前、且观察组高于对照组(均P<0.05)。2组治疗期间不良反应发生率比较差异无统计学意义(P>0.05)。观察组中位PFS、中位总生存期均长于对照组(均P<0.01)。结论 复方万年青胶囊联合GP化疗方案治疗中晚期NSCLC患者,可有效控制疾病进展,延长生存期,调节血清肿瘤标志物和血清凋亡因子水平,改善免疫功能。

艾拉莫德联合双醋瑞因对难治性类风湿关节炎患者的疗效及对TH17/Treg细胞因子的影响

目的:研究难治性类风湿关节炎(RRA)治疗中双醋瑞因与艾拉莫德联合疗效及对患者辅助性T细胞17(TH17)/调节性T淋巴细胞(Treg)的影响。方法:回顾性分析2021年1月至2023年12月入院的80例RRA患者,根据不同治法分为单一组(单用艾拉莫德,40例)与联合组(联用艾拉莫德、双醋瑞因,40例);比较两组治疗前后血清学指标[白细胞介素-17(IL-17)、TH17、Treg、TH17/Treg]、血清炎症因子[C-反应蛋白(CRP)、肿瘤坏死因子(TNF-α)、白细胞介素-1β(IL-1β)、白细胞介素-1(IL-1)]、免疫学指标[免疫球蛋白M(IgM)、免疫球蛋白A(IgA)、免疫球蛋白G(IgG)]、实验室指标[人内皮抑素(ES)、类风湿因子(RF)、红细胞沉积率(ESR)]、临床症状改善状况(关节肿胀数量、晨僵时间、关节疼痛(VAS)评分)与治疗后总有效率、不良反应(白细胞减少、恶心呕吐、瘙痒、皮疹)发生率。结果:与单一组比较,联合组治疗后IL-17、TH17、TH17/Treg、CRP、TNF-α、IL-1β、IL-1、IgM、IgA、IgG、RF、ESR与关节肿胀数量、VAS评分更低,Treg、ES更高,晨僵时间更短,差异有统计学意义(P<0.05)。联合组治疗后总有效率(97.50%)高于单一组(80.00%),差异有统计学意义(P<0.05)。两组白细胞减少、恶心呕吐、瘙痒、皮疹发生率差异无统计学意义(P>0.05)。结论:RRA治疗中双醋瑞因与艾拉莫德联合疗效显著,有益于进一步改善患者炎症因子、免疫学指标及实验室指标与减轻症状,还可纠正TH17/Treg失衡,且不良反应少。

不同中医证型特应性皮炎患者外周血Th1、Th2、Th17细胞及miR-155表达分析

目的:分析研究不同中医证型特应性皮炎(AD)患者外周血辅助性T细胞1(Th1)、Th2、Th17细胞及微小RNA-155(miR-155)表达。方法:回顾性选取2021年6月~2022年6月我院收治的AD患者作为AD组(n=112),根据不同中医证型将患者分为脾虚湿蕴组(n=46)、湿热内蕴组(n=37)和血虚风燥组(n=29),另选60例本院同期体检健康人群为对照组(n=60)。比较各组外周血Th1、Th2、Th17细胞百分比差异、Th1类细胞因子(IFN-γ)、Th2类细胞因子(IL-4)、Th17类细胞因子(IL-17)及miR-155表达。结果:AD组外周血Th1、IFN-γ水平低于对照组,Th2、Th17、IL-4、IL-17、miR-155表达均高于对照组(P<0.05);不同中医证型的AD患者外周血Th1、IFN-γ水平比较差异无统计学意义(P>0.05);不同中医证型的Th2、Th17、IL-4、IL-17表达水平相比,湿热内蕴组>脾虚湿蕴组>血虚风燥组(P<0.05);不同中医证型的miR-155表达水平相比,湿热内蕴组>脾虚湿蕴组>血虚风燥组(P<0.05)。结论:不同中医证型AD患者外周血Th2、Th17细胞及相关细胞因子与miR-155表达存在差异性,检测其表达水平有助于指导AD中医辨证分型和治疗。