支原体肺炎患儿肺泡灌洗液中TNF-α、IL-6、IL-10水平检测及意义

Levels of TNF-α, IL-6 and IL-10 in bronchoalveolar lavage fluid in children with Mycoplasma pneumoniae pneumonia

摘要:

目的：探讨肺炎支原体肺炎（MPP）患儿支气管肺泡灌洗液（BALF）中细胞因子TNF-α、IL-6、IL-10的水平及其临床意义。方法：采用双抗体夹心ELISA法对45例MPP急性期患儿、30例MPP恢复期患儿和20例无肺部病变的对照组患儿BALF中TNF-α、IL-6、IL-10的水平进行测定。结果：MPP患儿急性期BALF中TNF-α、IL-6、IL-10水平高于对照组，差异有统计学意义（P＜0.05）；恢复期TNF-α、IL-6水平较急性期明显下降，与对照组相比无统计学意义（P＞0.05），恢复期IL-10水平仍持续升高，与急性期相比其水平无明显改变（P＞0.05）。结论：急性期MPP患儿BALF中TNF-α、IL-6、IL-10等细胞因子水平增高，这些细胞因子可能参与了MPP的发病。

Abstract:

OBJECTIVE: To study the levels and roles of cytokines TNF-α, IL-6 and IL-10 in bronchoalveolar lavage fluid (BALF) in children with Mycoplasma pneumoniae pneumonia (MPP). METHODS: The levels of TNF-α, IL-6 and IL-10 in BALF were measured using ELISA in children with MPP at acute stage (n=45) and at remission stage (n=30). Twenty children without lung lesions severed as the control group. RESULTS: The TNF-α, IL-6 and IL-10 levels in BALF were higher in children with MPP at acute stage than those in the control group (P<0.05). The levels of TNF-α and IL-6 in BALF at remission stage were reduced to the levels similar to the control group and were significantly lower than those at the acute stage in children with MPP. However, the levels of IL-10 in BALF remained at higher levels at remission stage in children with MPP. CONCLUSIONS: The levels of TNF-α, IL-6 and IL-10 in BALF increase in children with MPP at acute stage, suggesting that the cytokines may be involved in the pathogenesis of MPP.