慢性扁桃体炎是耳鼻咽喉科的常见病,以儿童多发,常被视为全身感染的“病灶”之一。慢性扁桃体炎的主要致病菌为厌氧菌,其与需氧菌之比约为10∶1,当机体抵抗力降低或局部黏膜受损时即可引起感染[1]。现代免疫学认为辅助性T细胞(helper T cell,Th)在调节细胞免疫和体液免疫反应中起了关键作用。慢性扁桃体炎患者的细胞免疫状态低下。匹多莫德是一种人工合成的免疫调节药,可通过免疫功能调节机制发挥抗菌和抗病毒的效果,预防和降低感染的复发[2]。2013年5月—2014年7月,笔者观察了匹多莫德对49例慢性扁桃体炎患儿血清白细胞介素4(IL-4)和干扰素-γ(IFN-γ)的影响,探讨其作用机制及临床意义,为该病的治疗提供参考。
机体免疫系统变应性炎症反应中起核心作用的Th细胞,可以通过释放一系列细胞因子,调节急性和慢性变应性炎症反应,并可依据所分泌细胞因子的不同,分为1型辅助性T细胞(type 1 helper T cells,Th1细胞)和2型辅助性T细胞(type 2 helper T cells,Th2细胞)[5]。Th1细胞的功能主要依赖IFN-γ等来实现,Th2细胞功能主要依赖IL-4等来实现[6-7]。Th1/Th2细胞之间相互制约,处于动态平衡状态,维持着机体免疫系统的正常功能,与许多免疫疾病的发生密切相关,一旦这种平衡破坏即可导致细菌、病毒等微生物感染等情况发生。Th1应答占优势时有利于减轻病情,Th2优势应答则会加重疾病[8-9]。匹多莫德能够显著下调血单核细胞IL-4等细胞因子的分泌,增加IFN-γ和IL-12等Th1型细胞因子的分泌,从而调节 Th1/Th2细胞因子平衡[10]。
CALDERONC,RIVERAL,HUTCHINSONP,et al.T-cell cytokine profiles are altered in childhood asthma exacerbation[J].,2009,14(2):264-269.
ABSTRACT Background and objective:69 Stable asthma is characterized by the production of Th2 cytokines, although Th1 cytokines may play a key role in aspects such as airway hyper-responsiveness. This study explored cytokine profiles associated with asthma exacerbation. Methods:69 Intracellular T-cell cytokine production was measured in 16 children with acute severe asthma (emergency department), after convalescence (6 weeks, 65=6513), with stable disease (after 6 months, 65=657) and in 14 age-matched hospital controls. Flow cytometry was used to identify CD4+ and CD8+ cells and to quantify intracellular T-cell production of the cytokines interferon (IFN)-γ, IL-4 and IL-13. Cytokine production was compared using analysis of variance and random-effects generalized linear models and associations were examined using Pearson's correlation. Results:69 Cytokine production was evident in CD4+ and CD8+ cells, and compared with asthmatic children, non-asthmatics had a higher percentage of IFN-γ+CD4+ cells (65=650.01). The percentage of CD8+IFN-γ+ cells was increased in the convalescent phase compared with acute (65=650.009) and stable asthma (65=650.004). IL-4+ cells were not significantly altered. IL-13 levels were higher in acute disease than in stable asthma (65=650.009 in CD4+ cells) and IFN-γ/IL-13 ratios indicated a Th2 profile during exacerbation (65=650.005 in CD4+ cells). Conclusions:69 IL-13, rather than IL-4, may play a pro-inflammatory role during acute severe asthma, whereas IFN-γ responses were associated with recovery from acute severe asthma. These results suggest that altered T-cell cytokine profiles may contribute to the pathogenesis of and recovery from asthma exacerbations.
... 慢性扁桃体炎是耳鼻咽喉科的常见病,以儿童多发,常被视为全身感染的“病灶”之一.慢性扁桃体炎的主要致病菌为厌氧菌,其与需氧菌之比约为10∶1,当机体抵抗力降低或局部黏膜受损时即可引起感染[1].现代免疫学认为辅助性T细胞(helper T cell,Th)在调节细胞免疫和体液免疫反应中起了关键作用.慢性扁桃体炎患者的细胞免疫状态低下.匹多莫德是一种人工合成的免疫调节药,可通过免疫功能调节机制发挥抗菌和抗病毒的效果,预防和降低感染的复发[2].2013年5月—2014年7月,笔者观察了匹多莫德对49例慢性扁桃体炎患儿血清白细胞介素4(IL-4)和干扰素-γ(IFN-γ)的影响,探讨其作用机制及临床意义,为该病的治疗提供参考. ...
匹多莫德对小儿支气管哮喘的临床疗效观察
1
2011
... 慢性扁桃体炎是耳鼻咽喉科的常见病,以儿童多发,常被视为全身感染的“病灶”之一.慢性扁桃体炎的主要致病菌为厌氧菌,其与需氧菌之比约为10∶1,当机体抵抗力降低或局部黏膜受损时即可引起感染[1].现代免疫学认为辅助性T细胞(helper T cell,Th)在调节细胞免疫和体液免疫反应中起了关键作用.慢性扁桃体炎患者的细胞免疫状态低下.匹多莫德是一种人工合成的免疫调节药,可通过免疫功能调节机制发挥抗菌和抗病毒的效果,预防和降低感染的复发[2].2013年5月—2014年7月,笔者观察了匹多莫德对49例慢性扁桃体炎患儿血清白细胞介素4(IL-4)和干扰素-γ(IFN-γ)的影响,探讨其作用机制及临床意义,为该病的治疗提供参考. ...