唐會濤+郝國平

摘要:目的 探討兒童急性淋巴細胞白血病(ALL)患者初步診斷時和化療完全緩解(CR)后血清中IL-2、IL-10水平的變化。方法 收集確診為ALL且經過化療獲得完全緩解的患兒30例及健康兒童20例,采用流式細胞術(FCM)測量初診組、完全緩解組(CR)、健康對照組血清中IL-2、IL-10的水平,比較化療前后這兩種細胞因子含量的變化,并分別與健康對照組做對比。結果 初診組患兒IL-2水平( 3.59±1.18)pg/ml與正常對照組兒童IL-2水平(6.22±2.03)pg/ml相比較明顯下降( P<0.001),初診組IL-10的水平(15.88±4.73)pg/ml與正常兒童IL-10的水平( 5.69±3.44 )pg/ml相比較則顯著升高(P<0.001)。隨著化療的進行IL-2水平( 4.78±1.57 )pg/ml明顯上升,(P=0.005),IL-10水平( 8.14±2.82 )pg/ml顯著下降( P<0.001),都未達到正常兒童水平(P= 0.034和P=0.036)。但是差異均有統計學意義(P<0.05)。結論 細胞因子IL-2和IL-10可能在兒童ALL的發生、發展過程中發揮了免疫調節功能,其含量的變化在一定程度上能夠反應兒童ALL患兒體內的免疫功能狀態的好壞。
關鍵詞:兒童;急性淋巴細胞白血病;IL-2IL-10;流式細胞術
Abstract:Objective To investigate the children with acute lymphoblastic leukemia(ALL)patients at initial diagnosis and chemotherapy complete remission(CR)after IL-2 in serum,the change of IL-10 level.Methods Diagnosed with ALL after chemotherapy and 20 cases of complete remission in 30 cases of children and healthy children by flow cytometry(FCM)measurement diagnosis group,complete remission group(CR),healthy control group serum IL-2,IL-10 level changes of these two cytokines were compared before and after chemotherapy,and compared with the healthy control group respectively.Results The level of IL-2(3.59±1.18) pg/ml in the newly diagnosed group was significantly lower than that in the normal control group (6.22±2.03) pg/ml(P<0.001).The level of IL-10 in the first visit group(15.88±4.73)pg/ml was significantly higher than that of the normal children (5.69±3.44),IL-10(P<0.001),compared with the normal children.With chemotherapy were IL-2 level (4.78±1.57)pg/ml significantly increased(P=0.005),IL-10(8.14±2.82)pg/ml decreased significantly(P<0.001),has not reached the level of normal children(P= 0.034 and P=0.036).But the differences were statistically significant(P<0.05).Conclusion The cytokines IL-2 and IL-10 may play an immunoregulatory function in the development and progression of ALL in children.The changes of their contents can reflect the immune function in children with ALL.
Key words:Children;Acute lymphoblastic leukemia;IL-2IL-10;Flow cytometry
近年來,有許多關于白血病患者體內細胞因子變化的研究,但大多數實驗的對象以成人為主,也有部分實驗的對象包括成人和兒童,并且兒童的平均年齡偏大,很少完全以兒童為主要對象的實驗研究。兒童急性白血病尤其是低年齡段的患者數量呈逐年增加趨勢,且兒童免疫功能尚未完善,因此,了解兒童免疫功能狀態十分必要。兒童急性淋巴細胞白血病(ALL)是兒童惡性腫瘤中最常見的疾病,以骨髓中白血病細胞克隆性增生為主,抑制了正常造血細胞的產生,并侵犯其他組織和器官,從而使患兒表現出貧血、出血、感染、骨痛、關節浸潤等一系列臨床癥狀,且起病急,病情進展快,病程短,易復發,給家庭帶來了巨大的經濟負擔。目前白血病的發病機理尚不十分明確,可能與染色體異常、化工燃料、病毒感染、輻射、遺傳易感性等因素相關。有研究[1]證實細胞因子的分泌和調節異常能使腫瘤細胞逃脫機體的免疫監視,細胞因子的網絡失衡可能為急性白血病的發病提供機會[2]。……