아토피피부염 환자에서 혈중 케모카인 농도와 SCORAD 점수의 상관관계
Correlation of Serum Chemokine Levels with SCORAD Index in Children with Atopic Dermatitis
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목 적 : CCL17, CCL27, CCL18은 아토피피부염에서 T 림프구를 염증 부위로 동원하는 기전에 관여하는 것으로 알려져 있다. 본 연구에서는 혈중 CCL17, CCL27, CCL18 농도와 아토피피부염 중증도 사이의 상관관계에 대하여 연구하였다. 방 법 : CCL17/CCL18/CCL27 농도, 총 IgE 농도, ECP 농도를 각각 40명의 아토피피부염 소아와 정상 대조군 소아에서 측정하여 비교하였다. CCL17/CCL18/CCL27 농도는 ELISA로 측정하였으며 각각의 검사 결과와 아토피피부염의 중증도 사이의 상관 관계를 검증하였다. 결 과 : 아토피피부염 소아에서 대조군 소아에 비해 CCL17/CCL18/CCL27 농도, 총 IgE 농도, ECP 농도가 유의하게 높았다. 정상 대조군 소아에서는 2세 미만(CCL17=205±281 pg/mL, CCL27= 999±783 pg/mL)에서 2세 이상(CCL17= 49±54 pg/mL; P<0.05, CCL27=630±820 pg/ mL; P<0.05)에 비해 CCL17과 CCL27의 농도가 높았다. 아토피피부염 소아에서 CCL17/ CCL18/ CCL27 농도는 SCORAD 점수와 유의한 양의 상관관계를 나타내었다.(r= 0.349, P<0.05; r=0.701, P<0.001; r=0.661 P< 0.001) CCL17과 CCL27의 혈중 농도와 SCORAD 점수 사이의 상관관계는 연령에 따라 차이를 나타냈으며, 2세 미만의 소아에 비해 2세 이상의 소아에서 더 강한 상관관계를 나타내었다. 결 론 : 본 연구 결과 CCL17, CCL27, CCL18의 혈중 농도가 아토피피부염의 중증도를 반영하는 객관적인 지표가 될 수 있을 것으로 생각된다.
Abstract
Purpose : CCL17, CCL27 and CCL18 have attracted significant interest with regard to understanding the mechanisms of T cell trafficking. We tested whether levels of serum CCL17, CCL27 and CCL18 would be useful markers for atopic dermatitis (AD) in children. Methods : Serum concentrations of CCL17, CCL27, CCL18, total IgE and eosinophil cationic protein (ECP) in AD (n=40) and healthy control (n=40) children were compared. The correlation between the studied parameters and activity of AD was investigated. The severity of AD was assessed according to the SCORAD (scoring atopic dermatitis) index. The serum concentrations of CCL17, CCL27 and CCL18 were measured by means of ELISA. Results : The levels of all studied parameters were significantly higher in children with AD than those of control subjects. A positive correlation was found between the levels of CCL17, CCL18 and CCL27 and the SCORAD index in AD children (P<0.05, P<0.001 and P<0.001) The correlation of CCL17 and CCL27 concentrations with severity appears to be age-dependent because a stronger correlation was found in AD children over the age of 2 years than those with younger than 2 years of age. A weaker correlation in AD children younger than 2 years may be attributed to higher concentrations of these chemokines because higher concentrations of these chemokines were detected in control subjects younger than 2 years (CCL17=205±281 pg/mL, CCL27=999±783 pg/mL) than those of older than 2 years.(CCL17=49±54 pg/mL; P= 0.012, CCL27=630±820 pg/mL; P=0.041, respectively) Conclusion : Our findings suggest that levels of serum CCL17, CCL27 and CCL18 can be used as useful markers for the severity of AD.
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