Influence of interferon-α therapy on CD8 T memory subsets in patients with chronic hepatitis B

Objective To investigate the influence of interferon-a therapy on CD8 T memory subsets in patients with chronic hepatitis B(CHB) and correlation between the effect of IFN-α and CD8 T memory subsets. Methods Blood samples from 57 patients with CHB were collected before treatment (0 week), at 12 weeks and 24 weeks of treatment with pegylated IFN-α. Assays were performed on freshly isolated peripheral blood mononuclear cells ( PBMCs). For phenotype analysis, All data were acquired on a flow cytometer instrument and prepared for analysis. Results A significantly higher frequency of CD8+ TEM and lower frequency of CD8+ TCM in inactive HBsAg carriers than that in CHB patients prior to treatment was observed (P <0.05). The proportion of CD8 + TCM was higher in group nonresponders than in group respond-ers, and the proportion of CD8 + TEM was lower in group nonresponders than in group responders (P < 0.05 ). The average dosage of IFN-α applied to patients with response was significantly higher than nonresponders. Conclusion The dominance of circulating effector memory T cells may be associated with elimination of viral infection, and possibly benefit for response to therapy with IFN-α.     

Influence of interferon-α therapy on CD8 T memory subsets in patients with chronic hepatitis B

Objective To investigate the influence of interferon-a therapy on CD8 T memory subsets in patients with chronic hepatitis B(CHB) and correlation between the effect of IFN-α and CD8 T memory subsets. Methods Blood samples from 57 patients with CHB were collected before treatment (0 week), at 12 weeks and 24 weeks of treatment with pegylated IFN-α. Assays were performed on freshly isolated peripheral blood mononuclear cells ( PBMCs). For phenotype analysis, All data were acquired on a flow cytometer instrument and prepared for analysis. Results A significantly higher frequency of CD8+ TEM and lower frequency of CD8+ TCM in inactive HBsAg carriers than that in CHB patients prior to treatment was observed (P <0.05). The proportion of CD8 + TCM was higher in group nonresponders than in group respond-ers, and the proportion of CD8 + TEM was lower in group nonresponders than in group responders (P < 0.05 ). The average dosage of IFN-α applied to patients with response was significantly higher than nonresponders. Conclusion The dominance of circulating effector memory T cells may be associated with elimination of viral infection, and possibly benefit for response to therapy with IFN-α.     

强直性脊柱炎患者外周记忆性T细胞亚群及功能初探

通过分析强直性脊柱炎患者外周血CD4+和CD8+记忆性T细胞亚群比例和产生细胞因子IFN-γ的能力,探讨记忆性T细胞在强直性脊柱炎发病中的作用。流式细胞术检测强直性脊柱炎患者外周血CD4+和CD8+记忆性T细胞亚群分布和分泌IFN-γ的记忆性T细胞百分比。强直性脊柱炎患者外周CD4+和CD8+记忆性T细胞的比例和正常对照组相比,无差异,进一步比较效应型(TEM)和中央型记忆性T细胞(TCM)在CD4+和CD8+亚群中的分布,发现CD4+TEM及CD4+TCM与正常人相比无明显差异(P>0.05),而CD8+TCM与正常人相比显著升高(P<0.05),CD8+TEM与正常对照相比则明显下降(P<0.05)。同时,强直性脊柱炎患者外周CD4+和CD8+记忆性T细胞分泌细胞因子IFN-γ的细胞比例与正常人相比显著下降(P<0.05)。强直性脊柱炎患者在疾病活动期状态下,其外周CD8+记忆性T细胞的亚群分布发生异常,同时CD4+TM和CD8+TM的数量虽然没有变化,但是其产生细胞因子IFN-γ的功能下降。这可能与患者对感染的易感性提高有一定关联。     

伴颈动脉粥样硬化脑梗患者CD4+CD28null T细胞CD158j表达和ERK磷酸化水平的关系

Objective To investigate the relationship between CD158j expression and phosphorylated ERK (p-ERK) in CD4+ CD28null T cells in cerebral infarction (CI) patients- with carotid atherosclerosis and its effects on carotid atherosclerotic plaque stability. Methods Percentage of peripheral CD4+ CD28null and the expression of CD158j and perform on CD4+ CD28null cells was analyzed with flow cytometry in 106 CI patients with carotid atherosclerosis, 33 CI patients with normal carotid arteries and in 50 normal controls, respectively; p-ERK expression was assayed with flow cytometry in 36 CI patients with unstable plaque, and serum IFN-γ was detected with ELISA. The intima-media thickness (IMT) of bilateral carotid arteries in all subjects was confirmed by the colour Doppler ultrasonograph imagingResults Percentage of the CD4+ CD28null T cells, expression of CD158j and perform on CD4+ CD28null T cells and the serum IFN-γ levels was dramatically higher in CI patients than that in normal controls, respectively (all P <0.01), which was decreased in an order of CI patients with patients with unstable plaque, stable plaque, carotid artery IMT and with normal carotid artery. A strong positive correlation was observed between the CD158j expression and degree of p-ERK in CI patients with unstable plaque (P < 0. 01). Conclusion CD4+ CD28null T cells were significantly increased in CI patients with carotid atherosclerosis. CD158j might up-regulate p-ERK expression and induce the proliferation of the CD4+ CD28nullT cells; consequently, higher cytokine production such as IFN-γ produced by CD4+ CD28null T cells may cause the formation of unstable plaque.     

伴颈动脉粥样硬化脑梗患者CD4+CD28null T细胞CD158j表达和ERK磷酸化水平的关系

Objective To investigate the relationship between CD158j expression and phosphorylated ERK (p-ERK) in CD4+ CD28null T cells in cerebral infarction (CI) patients- with carotid atherosclerosis and its effects on carotid atherosclerotic plaque stability. Methods Percentage of peripheral CD4+ CD28null and the expression of CD158j and perform on CD4+ CD28null cells was analyzed with flow cytometry in 106 CI patients with carotid atherosclerosis, 33 CI patients with normal carotid arteries and in 50 normal controls, respectively; p-ERK expression was assayed with flow cytometry in 36 CI patients with unstable plaque, and serum IFN-γ was detected with ELISA. The intima-media thickness (IMT) of bilateral carotid arteries in all subjects was confirmed by the colour Doppler ultrasonograph imagingResults Percentage of the CD4+ CD28null T cells, expression of CD158j and perform on CD4+ CD28null T cells and the serum IFN-γ levels was dramatically higher in CI patients than that in normal controls, respectively (all P <0.01), which was decreased in an order of CI patients with patients with unstable plaque, stable plaque, carotid artery IMT and with normal carotid artery. A strong positive correlation was observed between the CD158j expression and degree of p-ERK in CI patients with unstable plaque (P < 0. 01). Conclusion CD4+ CD28null T cells were significantly increased in CI patients with carotid atherosclerosis. CD158j might up-regulate p-ERK expression and induce the proliferation of the CD4+ CD28nullT cells; consequently, higher cytokine production such as IFN-γ produced by CD4+ CD28null T cells may cause the formation of unstable plaque.     

伴颈动脉粥样硬化脑梗患者CD4+CD28null T细胞CD158j表达和ERK磷酸化水平的关系

目的 探讨伴颈动脉粥样硬化(CA)脑梗患者CD4+CD28null T细胞上CD158j的表达百分率和ERK磷酸化(p-ERK)水平的关系及对颈动脉粥样斑块不稳定的影响.方法 采用流式细胞术检测106例伴CA脑梗、33例颈动脉正常脑梗患者和50例健康人外周血CD4+CD28null T细胞数量,以及CD4+CD28null T细胞CD158j和穿孔素(perforin)的表达,36例斑块不稳定患者CD4+T细胞p-ERK水平.ELISA法检测血清IFN-γ水平.B超检查以上人群颈动脉血管内壁粥样硬化情况.结果 脑梗患者CD4+CD28nullT细胞数量、CD4+CD28null T细胞CD158j和perforin的表达,以及血清IFN-γ水平,均明显高于健康对照组(P均<0.01);CD4+CD28null T细胞数量、CD4+CD28null T细胞CD158j和perforin的表达,以及血清IFN-γ水平,在脑梗患者中由高到低依次为颈动脉不稳定斑块组、颈动脉稳定斑块组、颈动脉内-中膜厚度(IMT)增厚组和颈动脉正常组.颈动脉不稳定斑块脑梗患者CD4+CD28null T细胞CD158j的表达与p-ERK水平呈显著性正相关(P<0.01).结论 伴CA脑梗患者CD4+CD28null T细胞数量明显增多.CD158j可能通过上调p-ERK水平,促进CD4+CD28null淋巴细胞增殖,产生细胞毒效应和分泌细胞因子,最终导致颈动脉粥样斑块不稳定.

Abstract：

Objective To investigate the relationship between CD158j expression and phosphorylated ERK (p-ERK) in CD4+ CD28null T cells in cerebral infarction (CI) patients- with carotid atherosclerosis and its effects on carotid atherosclerotic plaque stability. Methods Percentage of peripheral CD4+ CD28null and the expression of CD158j and perform on CD4+ CD28null cells was analyzed with flow cytometry in 106 CI patients with carotid atherosclerosis, 33 CI patients with normal carotid arteries and in 50 normal controls, respectively; p-ERK expression was assayed with flow cytometry in 36 CI patients with unstable plaque, and serum IFN-γ was detected with ELISA. The intima-media thickness (IMT) of bilateral carotid arteries in all subjects was confirmed by the colour Doppler ultrasonograph imagingResults Percentage of the CD4+ CD28null T cells, expression of CD158j and perform on CD4+ CD28null T cells and the serum IFN-γ levels was dramatically higher in CI patients than that in normal controls, respectively (all P <0.01), which was decreased in an order of CI patients with patients with unstable plaque, stable plaque, carotid artery IMT and with normal carotid artery. A strong positive correlation was observed between the CD158j expression and degree of p-ERK in CI patients with unstable plaque (P < 0. 01). Conclusion CD4+ CD28null T cells were significantly increased in CI patients with carotid atherosclerosis. CD158j might up-regulate p-ERK expression and induce the proliferation of the CD4+ CD28nullT cells; consequently, higher cytokine production such as IFN-γ produced by CD4+ CD28null T cells may cause the formation of unstable plaque.     

不同结核病患者CD4+CD25+Foxp3+调节性T细胞表达的变化

Objective To investigate the expression of CD4 + CD25 + Foxp3 + regulatory T cell in patients with tuberculosis, and to discover its role in the immune response to mycobacterium tuberculosis. Methods Thirty-three patients with tuberculosis and 30 healthy controls were selected who were consulted in our hospital. Patients were classified by their chemotherapy and smear sputum and CD4 + CD25 + Foxp3 + regulatory T cell were detected by flow cytometry. Results Expression of CD4 + CD25high and CD4+ CD25 + Foxp3 + regulatory T cell in experimental group were ( 8.84 ± 2.55 ) % and (6.30 ± 1.38 ) % respectively, which were significantly higher than they were in control group (t = 3.57,4. 01, P ＜ 0. 01 ). The expression of CD4 + CD25high and CD4+ CD25 + Foxp3 + regulatory T cell in patients with positive smear sputum were also significant higher than that in patients with negative smear sputum ( t = 2. 51,2. 42,P ＜ 0.05). No significance was founded between the first-visit group and revisit group ( t = 0. 03, 0. 02, P ＞ 0.05 ). Conclusions CD4 + CD25high and CD4 + CD25 + Foxp3 + regulatory T cell in patients with tuberculosis were higher than healthy control, which may result in immune suppression.     

艾滋病HAART治疗免疫重建炎性综合征的免疫机制初步研究

目的 为探讨我国艾滋病病人(AIDS)启动高效抗反转录病毒治疗(HAART)后,发生免疫重建炎性综合征(IRIS)的免疫学发病机制,在前瞻性研究队列中对启动HAART的AIDS病人部分淋巴细胞亚群、调节性T细胞和部分Th1和Th2细胞因子等进行追踪分析.方法 将接受HAART初始治疗的238例AIDS病人建立前瞻性研究队列,分为在24周内发生IRIS的47例病人(IRIS组)和未发生IRIS的191例病人(非IRIS组).在HAART的0周、12周和24周采集两组血标本,对47例IRIS病例及随机选择的50例非IRIS病例进行免疫机制的研究分析,检测HIV病毒载量和CD4+细胞计数;使用流式细胞术检测部分淋巴细胞亚群和调节性T细胞(CD4+CD25+Foxp3+).在HAART的0周、4周、12周、24周及发生IRIS时分别采集全部238例患者的血标本,使用ELISA法测定血浆细胞因子IL-2、IFN-γ、IL-4、IL-10以及IL-7水平.结果 两组感染者的CD4+、CD8+纯真细胞和记忆细胞比例在0周、12周、24周及发生IRIS时比较差异均无统计学意义,但CD4+记忆细胞和CD8+记忆细胞比例在启动HAART后均明显上升.两组感染者CD4+CD38+活化细胞和CD8+CD38+活化细胞比例在基线时均较正常值明显升高,治疗后均有下降趋势.在0周、12周、24周及发生IRIS时CD4+CD25+Foxp3+调节性T细胞在IRIS组中均较非IRIS组要低.两组IL-2及IFN-γ在HAART后均呈上升趋势,且IRIS组在4周及发生IRIS时更明显高于非IRIS组;两组IL-4及IL-10在HAART后均呈下降趋势,IRIS组中IL-10在4周及发生IRIS时更明显低于非IRIS组.IL-7在两组中基线时均较正常值升高,并随HAART进程逐渐降低,其中IRIS组在各随访点IL-7均要高于非IRIS组.结论 接受HAART治疗者早期即出现记忆T细胞快速上升,在IRIS炎症反应中可能起重要作用.IL-2、IL-10和IFN-γ在发生IRIS时的水平差别,提示IRIS的发生与炎性细胞因子大量增加,炎性抑制因子相对不足有一定关系.IL-7也可能参与到IRIS的发病机制中.

Abstract：

Objective To investigate the immunological pathogenesis of immune reconstitution inflammatory syndrome (IRIS) during highly active antiretroviral therapy( HAART), in this prospective cohort study we analyzed the lymphocyte subsets, lymphocyte activation, changes in regulatory T cells, and levels of Th1 and Th2 cytokines in both IRIS and non-IRIS groups. Methods Two hundred and thirty-eight AIDS patients received HAART and participated prospective research cohort for 24 weeks follow-up. Forty-seven IRIS cases and 191 non-IRIS cases were enrolled in the IRIS group or non-IRIS group respectively. Blood samples were collected in both groups at pre- and post-HAART 12 weeks, 24 weeks. Using flow cytometer to detect the immunophenotypes of lymphocyte subsets (CD4 + CD45RA+ CD62L+, CD8+ CD45RA+ CD62L+naive T cells; CD4+ CD45RO+, CD8+ CD45RO+ memory T cells), activated T lymphocytes (CD4+CD38 +, CD8 + CD38 + cells), and regulatory T cell ( CD4 + CD25 + Foxp3 + ). Blood samples collected at pre-and post-HAART4 weeks, 12 weeks, 24 weeks and used ELISA to detect IL-2, IFN-γ, IL-4, IL-10and IL-7 cytokine serum levels. Results The percentages of CD4 + and CD8 + naive T cells and mlemory T cells exhibited no significant differences at the baseline, 12 weeks, 24 weeks of HAART initiation between both groups, but CD4 + and CD8 + memory T cells were demonstrated a trend towards to increase while compared to baseline during HAART. The percentages of CD4 + and CD8 + activated T cells are significantly higher at the baseline while compared to normal control and demonstrated a downward trend, but between both groups showed no significant difference. The percentages of CD4 + regulatory T cell was lower in IRIS group than non-IRIS group at the baseline, 12 weeks, 24 weeks and the onset of IRIS. Th1 cytokines, IL-2 and IFN-γshowed an upward trend during HAART at the levels of IRIS group had significantly increased at 4 weeks and the onset of IRIS. Th2 cytokines, IL-4 and IL-10 showed a downward trend during HAART,and the levels of IL-10 in IRIS group had significantly decreased at 4 weeks and the onset of IRIS. IL-7 was higher than normal control at the baseline in two groups and showed a downward trend during HAART. The level of IL-7 was higher than non-IRIS group at all follow-up points. Conclusion Memory T cells appear rapid increase in the early stage of HAART and may play a significant role in the inflammatory response of IRIS. CD4 + and CD8 + naive T cells, memory T cells and activated T cells showed no significant difference between IRIS and non-IRIS group within 24 weeks after HAART started. There was a significant reduction in the frequency of regulatory T cells in IRIS group without obvious upward trend during HAART, suggesting that the immune suppression function of regulatory T cells in IRIS was impaired. IL-2 and IFN-γ significantly increased while IL-10 significantly decreased at 4 weeks post-HAART initiation and onset of IRIS in IRISgroup than non-IRIS group, suggested that IRIS was related to cytokines environment disorder. That is, a significant increase in inflammatory cytokines, while the relative lack of non-inflammatory cytokines. The level of IL-7 decreased gradually after HAART started, and it was higher in IRIS group when compared to non-IRIS group in the first 24 weeks after HAART started. Also IL-7 may play a role in the pathogenesis of IRIS.     

Increased serum IL-10 in lupus patients promotes apoptosis of T cell subsets via the caspase 8 pathway initiated by Fas signaling

We sought to investigate the expression of Fas and FasL on T cell surface and caspase 8 involvement in T cell apoptosis promoted by serum IL-10 in systemic lupus erythematosus(SLE) patients.Cells and sera were obtained from 35 SLE patients.Apoptosis of T cells in patients with SLE was increased and associated with the SLE disease activity index(SLEDAI).Elevated expression of Fas and FasL on T cell surface contributed to increased apoptosis of T cells.Increased IL-10 in the sera of SLE patients was capable of inducing Fas and FasL expression on CD4~+T cell surface,promoting apoptosis of this cell subset.Decreased IL-10 serum levels and low expression of Fas were found in 5 patients of the first follow-up group after 2-month treatment.In another group with one-year treatment,the SLEDAI declined to inactive scores.Serum IL-10 was decreased significantly,and expression of Fas and FasL on T cells was also reduced.Declined apoptosis was predominant only in CD4~+T cell subset.When sera with high level of IL-10 were used to culture PBMCs from healthy controls,activated caspase 8 was elevated in CD3~+T,CD4~+T and CD8~+T cells.The study showed that serum IL-10 induced apoptosis of T cell subsets via the caspase8 pathway initiated by Fas signaling.Increased apoptosis of T cells contributes to autoantigen burden,which is pathogenic in the development of SLE.     

尖锐湿疣患者外周血Thl/Th2及Tc1/Tc2亚群的检测及意义

Objective To investigate the role of T-helper (Th) and cytotoxic T (Tc) lymphocyte polarization in the pathogenesis of condyloma acuminatum (CA) and its correlation with recurrence. Methods Three-colour immunofluorescent flow cytometry was used to detect the proportion of CD3+ CD8-/IFN-γ+ (Th1),CD3+CD8-/IL-4+ (Th2), CD3+ CD8+/IFN-γ+ (Tel) and CD3+ CD8+/IL-4+ (Tc2) cells in the peripheral blood of CA patients and health controls. Results Compared to health controls, CA patients showed a decreased number of Thl (P < 0.01) and Tcl cells (P < 0.05), as well as a decreased Th1/Th2 and Tc1/Tc2 ratio (P <0.05). Furthermore, in 15 recurrent CA patients the ratio of Th1/Th2 was remarkably decreased (P < 0.01),while the ratio of Tc1/Tc2 had no significant change in comparison with health controls. Conclusion The decrease of Th1 and Tc1 subsets results in relative Th2 and Tc2 predominance, and this tendency is more significant in recurrent CA patients. The Th1 to Th2 and Te1 to Tc2 shifts in CA patients could be responsible for the fact that human papilloma virus (HPV) is hard to be eliminated.     

尖锐湿疣患者外周血Thl/Th2及Tc1/Tc2亚群的检测及意义

Objective To investigate the role of T-helper (Th) and cytotoxic T (Tc) lymphocyte polarization in the pathogenesis of condyloma acuminatum (CA) and its correlation with recurrence. Methods Three-colour immunofluorescent flow cytometry was used to detect the proportion of CD3+ CD8-/IFN-γ+ (Th1),CD3+CD8-/IL-4+ (Th2), CD3+ CD8+/IFN-γ+ (Tel) and CD3+ CD8+/IL-4+ (Tc2) cells in the peripheral blood of CA patients and health controls. Results Compared to health controls, CA patients showed a decreased number of Thl (P < 0.01) and Tcl cells (P < 0.05), as well as a decreased Th1/Th2 and Tc1/Tc2 ratio (P <0.05). Furthermore, in 15 recurrent CA patients the ratio of Th1/Th2 was remarkably decreased (P < 0.01),while the ratio of Tc1/Tc2 had no significant change in comparison with health controls. Conclusion The decrease of Th1 and Tc1 subsets results in relative Th2 and Tc2 predominance, and this tendency is more significant in recurrent CA patients. The Th1 to Th2 and Te1 to Tc2 shifts in CA patients could be responsible for the fact that human papilloma virus (HPV) is hard to be eliminated.     

尖锐湿疣患者外周血Thl/Th2及Tc1/Tc2亚群的检测及意义

Objective To investigate the role of T-helper (Th) and cytotoxic T (Tc) lymphocyte polarization in the pathogenesis of condyloma acuminatum (CA) and its correlation with recurrence. Methods Three-colour immunofluorescent flow cytometry was used to detect the proportion of CD3+ CD8-/IFN-γ+ (Th1),CD3+CD8-/IL-4+ (Th2), CD3+ CD8+/IFN-γ+ (Tel) and CD3+ CD8+/IL-4+ (Tc2) cells in the peripheral blood of CA patients and health controls. Results Compared to health controls, CA patients showed a decreased number of Thl (P < 0.01) and Tcl cells (P < 0.05), as well as a decreased Th1/Th2 and Tc1/Tc2 ratio (P <0.05). Furthermore, in 15 recurrent CA patients the ratio of Th1/Th2 was remarkably decreased (P < 0.01),while the ratio of Tc1/Tc2 had no significant change in comparison with health controls. Conclusion The decrease of Th1 and Tc1 subsets results in relative Th2 and Tc2 predominance, and this tendency is more significant in recurrent CA patients. The Th1 to Th2 and Te1 to Tc2 shifts in CA patients could be responsible for the fact that human papilloma virus (HPV) is hard to be eliminated.     

尖锐湿疣患者外周血Thl/Th2及Tc1/Tc2亚群的检测及意义

Objective To investigate the role of T-helper (Th) and cytotoxic T (Tc) lymphocyte polarization in the pathogenesis of condyloma acuminatum (CA) and its correlation with recurrence. Methods Three-colour immunofluorescent flow cytometry was used to detect the proportion of CD3+ CD8-/IFN-γ+ (Th1),CD3+CD8-/IL-4+ (Th2), CD3+ CD8+/IFN-γ+ (Tel) and CD3+ CD8+/IL-4+ (Tc2) cells in the peripheral blood of CA patients and health controls. Results Compared to health controls, CA patients showed a decreased number of Thl (P < 0.01) and Tcl cells (P < 0.05), as well as a decreased Th1/Th2 and Tc1/Tc2 ratio (P <0.05). Furthermore, in 15 recurrent CA patients the ratio of Th1/Th2 was remarkably decreased (P < 0.01),while the ratio of Tc1/Tc2 had no significant change in comparison with health controls. Conclusion The decrease of Th1 and Tc1 subsets results in relative Th2 and Tc2 predominance, and this tendency is more significant in recurrent CA patients. The Th1 to Th2 and Te1 to Tc2 shifts in CA patients could be responsible for the fact that human papilloma virus (HPV) is hard to be eliminated.     

尖锐湿疣患者外周血Thl/Th2及Tc1/Tc2亚群的检测及意义

Objective To investigate the role of T-helper (Th) and cytotoxic T (Tc) lymphocyte polarization in the pathogenesis of condyloma acuminatum (CA) and its correlation with recurrence. Methods Three-colour immunofluorescent flow cytometry was used to detect the proportion of CD3+ CD8-/IFN-γ+ (Th1),CD3+CD8-/IL-4+ (Th2), CD3+ CD8+/IFN-γ+ (Tel) and CD3+ CD8+/IL-4+ (Tc2) cells in the peripheral blood of CA patients and health controls. Results Compared to health controls, CA patients showed a decreased number of Thl (P < 0.01) and Tcl cells (P < 0.05), as well as a decreased Th1/Th2 and Tc1/Tc2 ratio (P <0.05). Furthermore, in 15 recurrent CA patients the ratio of Th1/Th2 was remarkably decreased (P < 0.01),while the ratio of Tc1/Tc2 had no significant change in comparison with health controls. Conclusion The decrease of Th1 and Tc1 subsets results in relative Th2 and Tc2 predominance, and this tendency is more significant in recurrent CA patients. The Th1 to Th2 and Te1 to Tc2 shifts in CA patients could be responsible for the fact that human papilloma virus (HPV) is hard to be eliminated.     

尖锐湿疣患者外周血Thl/Th2及Tc1/Tc2亚群的检测及意义

Objective To investigate the role of T-helper (Th) and cytotoxic T (Tc) lymphocyte polarization in the pathogenesis of condyloma acuminatum (CA) and its correlation with recurrence. Methods Three-colour immunofluorescent flow cytometry was used to detect the proportion of CD3+ CD8-/IFN-γ+ (Th1),CD3+CD8-/IL-4+ (Th2), CD3+ CD8+/IFN-γ+ (Tel) and CD3+ CD8+/IL-4+ (Tc2) cells in the peripheral blood of CA patients and health controls. Results Compared to health controls, CA patients showed a decreased number of Thl (P < 0.01) and Tcl cells (P < 0.05), as well as a decreased Th1/Th2 and Tc1/Tc2 ratio (P <0.05). Furthermore, in 15 recurrent CA patients the ratio of Th1/Th2 was remarkably decreased (P < 0.01),while the ratio of Tc1/Tc2 had no significant change in comparison with health controls. Conclusion The decrease of Th1 and Tc1 subsets results in relative Th2 and Tc2 predominance, and this tendency is more significant in recurrent CA patients. The Th1 to Th2 and Te1 to Tc2 shifts in CA patients could be responsible for the fact that human papilloma virus (HPV) is hard to be eliminated.     

尖锐湿疣患者外周血Thl/Th2及Tc1/Tc2亚群的检测及意义

Objective To investigate the role of T-helper (Th) and cytotoxic T (Tc) lymphocyte polarization in the pathogenesis of condyloma acuminatum (CA) and its correlation with recurrence. Methods Three-colour immunofluorescent flow cytometry was used to detect the proportion of CD3+ CD8-/IFN-γ+ (Th1),CD3+CD8-/IL-4+ (Th2), CD3+ CD8+/IFN-γ+ (Tel) and CD3+ CD8+/IL-4+ (Tc2) cells in the peripheral blood of CA patients and health controls. Results Compared to health controls, CA patients showed a decreased number of Thl (P < 0.01) and Tcl cells (P < 0.05), as well as a decreased Th1/Th2 and Tc1/Tc2 ratio (P <0.05). Furthermore, in 15 recurrent CA patients the ratio of Th1/Th2 was remarkably decreased (P < 0.01),while the ratio of Tc1/Tc2 had no significant change in comparison with health controls. Conclusion The decrease of Th1 and Tc1 subsets results in relative Th2 and Tc2 predominance, and this tendency is more significant in recurrent CA patients. The Th1 to Th2 and Te1 to Tc2 shifts in CA patients could be responsible for the fact that human papilloma virus (HPV) is hard to be eliminated.     

尖锐湿疣患者外周血Thl/Th2及Tc1/Tc2亚群的检测及意义

Objective To investigate the role of T-helper (Th) and cytotoxic T (Tc) lymphocyte polarization in the pathogenesis of condyloma acuminatum (CA) and its correlation with recurrence. Methods Three-colour immunofluorescent flow cytometry was used to detect the proportion of CD3+ CD8-/IFN-γ+ (Th1),CD3+CD8-/IL-4+ (Th2), CD3+ CD8+/IFN-γ+ (Tel) and CD3+ CD8+/IL-4+ (Tc2) cells in the peripheral blood of CA patients and health controls. Results Compared to health controls, CA patients showed a decreased number of Thl (P < 0.01) and Tcl cells (P < 0.05), as well as a decreased Th1/Th2 and Tc1/Tc2 ratio (P <0.05). Furthermore, in 15 recurrent CA patients the ratio of Th1/Th2 was remarkably decreased (P < 0.01),while the ratio of Tc1/Tc2 had no significant change in comparison with health controls. Conclusion The decrease of Th1 and Tc1 subsets results in relative Th2 and Tc2 predominance, and this tendency is more significant in recurrent CA patients. The Th1 to Th2 and Te1 to Tc2 shifts in CA patients could be responsible for the fact that human papilloma virus (HPV) is hard to be eliminated.     

尖锐湿疣患者外周血Thl/Th2及Tc1/Tc2亚群的检测及意义

Objective To investigate the role of T-helper (Th) and cytotoxic T (Tc) lymphocyte polarization in the pathogenesis of condyloma acuminatum (CA) and its correlation with recurrence. Methods Three-colour immunofluorescent flow cytometry was used to detect the proportion of CD3+ CD8-/IFN-γ+ (Th1),CD3+CD8-/IL-4+ (Th2), CD3+ CD8+/IFN-γ+ (Tel) and CD3+ CD8+/IL-4+ (Tc2) cells in the peripheral blood of CA patients and health controls. Results Compared to health controls, CA patients showed a decreased number of Thl (P < 0.01) and Tcl cells (P < 0.05), as well as a decreased Th1/Th2 and Tc1/Tc2 ratio (P <0.05). Furthermore, in 15 recurrent CA patients the ratio of Th1/Th2 was remarkably decreased (P < 0.01),while the ratio of Tc1/Tc2 had no significant change in comparison with health controls. Conclusion The decrease of Th1 and Tc1 subsets results in relative Th2 and Tc2 predominance, and this tendency is more significant in recurrent CA patients. The Th1 to Th2 and Te1 to Tc2 shifts in CA patients could be responsible for the fact that human papilloma virus (HPV) is hard to be eliminated.     

尖锐湿疣患者外周血Thl/Th2及Tc1/Tc2亚群的检测及意义

Objective To investigate the role of T-helper (Th) and cytotoxic T (Tc) lymphocyte polarization in the pathogenesis of condyloma acuminatum (CA) and its correlation with recurrence. Methods Three-colour immunofluorescent flow cytometry was used to detect the proportion of CD3+ CD8-/IFN-γ+ (Th1),CD3+CD8-/IL-4+ (Th2), CD3+ CD8+/IFN-γ+ (Tel) and CD3+ CD8+/IL-4+ (Tc2) cells in the peripheral blood of CA patients and health controls. Results Compared to health controls, CA patients showed a decreased number of Thl (P < 0.01) and Tcl cells (P < 0.05), as well as a decreased Th1/Th2 and Tc1/Tc2 ratio (P <0.05). Furthermore, in 15 recurrent CA patients the ratio of Th1/Th2 was remarkably decreased (P < 0.01),while the ratio of Tc1/Tc2 had no significant change in comparison with health controls. Conclusion The decrease of Th1 and Tc1 subsets results in relative Th2 and Tc2 predominance, and this tendency is more significant in recurrent CA patients. The Th1 to Th2 and Te1 to Tc2 shifts in CA patients could be responsible for the fact that human papilloma virus (HPV) is hard to be eliminated.     

Observation on effect of peginterferon α-2a treating lamivudine resistant chronic hepatitis B

Objective To observe the efficacy and safety of PEG-interferon α-2a(PEG-IFNα-2a)treatment on lamivudine(LAM)-resistant chronic hepatitis B (CHB)patients.Methods Eighty-one patients with lamivudine-resistant HBeAg (+) chronic hepatitis B patients were enrolled and divided into PEG-IFNα-2a treatment group(40 cases) and adefovir dipivoxil (ADV) control group (41 cases).Two groups were combined with LAM in the first 12 weeks(W).The ALT normalization rate,the HBV DNA and HBeAg negative rate,and the HBeAg seroconversion rate were observed in 12 W,24 W,48 W.Results The ALT normalization rate in 12 W,24 W of PEG-IFNα-2a group was 62.5%and 80.0%.AND it was higher than that of ADV group.The HBeAg negative rate and HBeAg seroconversion rate in 48 W of PEG-IFNα-2a group were 60% and 57.5%,which were higher than that of ADV group.The difference was statistically significant(P<0.05).Conclusion PEG-IFNα-2a treatment of lamivudine-resistant HBeAg (+) chronic hepatitis B is superior to ADV,and its security is well.