急性白血病患兒sIL-3和sEPO的檢測與意義
【摘要】 目的 探討急性白血病患兒血清白介素-3(sIL-3)、血清促紅細(xì)胞生成素(sEPO)水平的變化及其在白血病治療中的價值。方法 采用雙抗體夾心酶聯(lián)免疫吸附法檢測sIL-3,放射免疫分析法測定sEPO。結(jié)果 (1)sIL-3:ALL初治組為(195.83±108.25)pg/ml,AML初治組為(503.18±193.01)pg/ml,正常對照組為(192.50±93.25)pg/ml。ALL初治組與正常對照組比較差異無顯著性(P>0.05),AML初治組顯著高于正常組(P<0.01)和ALL初治組(P<0.01);4周化療骨髓完全緩解組ALL為(184.64±75.92)pg/ml,與初治組無差別(P>0.05)。骨髓完全緩解組AML為(441.25±54.52)pg/ml,與初治組無差別(P>0.05);ALL長期緩解組為(175.77±91.56)pg/ml,與4周緩解組及正常對照組比較均無差異(P>0.05)。(2)sFPO:初治組ALL(24例)為(42.47±26.47)mIU/ml,AML(11例)為(24.30±13.06)mIU/ml,正常對照組為(10.33±2.62)mIU/ml。ALL、AML顯著高于正常對照組(P<0.01,P<0.05),ALL顯著高于AML(P<0.05);4周化療骨髓完全緩解組ALL(14例)為(22.59±13.33)mIU/ml,AML(5例)為(22.85±12.66)mIU/ml,仍高于正常對照組(P<0.05);ALL組低于初治時水平(P<0.05),AML與初治時無差異(P>0.05);長期緩解組ALL(13例)為(12.77±4.33)mIU/ml,低于第四周緩解組(P>0.05),與正常對照組無差異(P<0.05)。sEPO與血紅蛋白(Hb)之間呈顯著負(fù)相關(guān)關(guān)系(P<0.01,n=54,不包括長期緩解組)。(3)sIL-3和sEPO之間及兩者與骨髓紅細(xì)胞計數(shù)無顯著相關(guān)關(guān)系。結(jié)論 sIL-3很可能參與了AML的發(fā)病過程,ALL的發(fā)病不是通過sIL-3水平增高導(dǎo)致的;小兒急性白血病時EPO生成和代償正常,白血病貧血不是EPO缺乏導(dǎo)致;IL-3對EPO生成無顯著影響。因而急性白血病患兒使用sIL-3時一定要慎重,而使用EPO治療效果可能有限。
, 百拇醫(yī)藥
關(guān)鍵詞 白細(xì)胞介素-3 血清促紅細(xì)胞生成素 急性白血病 貧血 治療
【文獻(xiàn)標(biāo)識碼】 A 【文章編號】 1680-6115(2003)10-0865-03
Meaningfulness of serum interleukin-3and serum erythropoietin
in acute leukemic children
Zhao Xiaoqing,Liu Yufeng
Children’s Hospital of Fudan University,Shanghai200032.
【Abstract】 Objective To study serum interleukin-3(sIL-3)and serum erythropoietin(sEPO)and their possible therapeutic efficacy in acute leukemic children.Methods The values of sIL-3were measured by sandwich ELISA and sEPOwere determined by radioimmunoassay.Results (1)sIL-3levels in ALL before therapy group were(195.83±108.25)pg/ml,in AML were(503.18±193.01)pg/ml,and healthy control were(192.50±93.25)pg/ml.There were no significant differences between ALLand healthy control(P>0.05).AMLwere significantly higher than that of healthycontrol(P<0.01)and ALL(P<0.01);complete remission(CR)group after4weeks ofchemotherapy in ALL were(184.64±75.92)pg/ml,AML were(441.25±54.52)pg/ml,both were no significant differences with that of before therapy group,respectively(P>0.05);the CR group of long time in ALLwas(175.77±91.56)pg/ml,which was no differences with that of healthy group and CR group after4weeks of chemotherapy(P>0.05).(2)sEPO levels in ALL before therapy were(42.47±26.47)mIU/ml,in AML were(24.30±13.06)mIU/ml,and healthy control were(10.33±2.62)mIU/ml.ALL and AML were significantly higher than that of healthy control respectively(P<0.01,P<0.05),ALL were higher than that of AML(P<0.05);CR group after4weeks of chemotherapy in ALL were(22.59±13.33)mIU/ml,AML were(22.85±12.66)mIU/ml,both were still higher than that of healthy control(P<0.05).ALL werelower than before therapy group(P<0.05),AML was no differences with that of before therapy group(P>0.05);CR group of long time in ALLwere(12.77±4.33)mIU/ml were lower than CR group after4weeks of therapy(P>0.05),and no differences with that of healthy control(P<0.05).sEPO was significantly negative associated with Hb(P<0.01,n=54,not including the CR group of long time).(3)There were no correlations between sIL-3and sEPO,and neither between each of them and nucleated eryˉthrocytes counts of bone marrow.Conclusion sIL-3is probably one ofthe main causes of AML,and ALL is not caused by the increased sIL-3;Anemia of acute leukemic children is not caused by inadequate erythropoietin producˉtion;treatment of acute leukemic anemia with sIL-3should be taken with caution,and treatment with rHuEPO might be of limited efficacy.
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Key words serum interleukin-3 serum erythropoietin acute leukemia anemia therapy
白血病是嚴(yán)重威脅兒童生命的惡性腫瘤。在急性白血病化療前后,但作為多能干細(xì)胞刺激因子的白細(xì)胞介素-3(interleukin-3,IL-3)及反映體內(nèi)紅細(xì)胞生成能力的血清促紅細(xì)胞生成素(serum erythropoietin,sEPO)的變化及其二者關(guān)系探討較少。我們對急性白血病患兒血清IL-3(sIL-3)和sEPO進行了檢測,現(xiàn)報告如下。
1 對象與方法
1.1 對象與分組 選擇2000年9月~2001年7月在鄭州大學(xué)第一附屬醫(yī)院兒科收治的急性白血病患兒48例,男28例,女20例,平均年齡7.19歲。包括急性淋巴細(xì)胞白血病(ALL)組:L 1型30例,L 2 型7例。入院前未經(jīng)治療者(下稱初治組)24例,其中入院后接受化療并在4周內(nèi)骨髓完全緩解者14例,已完全緩解6個月~3年者(長期緩解組)13例。急性髓性白血病(AML)組:M 1 型4例,M 2 型7例,入院前均未經(jīng)治療,其中入院后接受化療并經(jīng)4周化療骨髓完全緩解者5例。同時選20例同齡健康兒童作為正常對照組。
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1.2 方法
1.2.1 診治方法 ALL患兒參考1998年全國小兒血液病學(xué)術(shù)會議上提出的《小兒急性淋巴細(xì)胞白血病診療建議(第二次修訂草案)》標(biāo)準(zhǔn)診治:誘導(dǎo)緩解期接受激素誘導(dǎo)1周,VDLP方案治療1個月;AML患兒采用2000年全國小兒血液病學(xué)術(shù)會議上提出的《兒童急性髓系白血病診療建議》標(biāo)準(zhǔn)診治。
1.2.2 標(biāo)本采集 取初治、完全緩解及正常兒童清晨空腹非抗凝血4ml,靜置2h后,2500rpm離心20min,收集血清標(biāo)本-70℃凍存。
1.2.3 測定方法 血清IL-3測定采用雙抗夾心ELISA法,試劑為晶美生物工程有限公司進口分裝產(chǎn)品;sEPO測定采用放射免疫分析法,試劑為北京華英生物技術(shù)研究所產(chǎn)品。實驗均按說明書進行操作。
1.3 統(tǒng)計學(xué)方法 應(yīng)用統(tǒng)計學(xué)分析軟件包SPSS10.0進行統(tǒng)計學(xué)分析,統(tǒng)計方法采用t檢驗,方差分析等。
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2 結(jié)果
2.1 sIL-3 ALL初治組與正常對照組比較差異無顯著性(P>0.05),AML初治組顯著高于正常組(P<0.01)及ALL初治組(P<0.01);4周化療骨髓完全緩解組ALL與初治組比較差異無顯著性(P>0.05),AML與初治組比較亦差異無顯著性(P>0.05);ALL長期緩解組與4周化療緩解組及正常對照組比較差異無顯著性(P>0.05),見表1。
2.2 sEPO 初治組ALL、AML顯著高于正常對照組(P<0.01,P<0.05),ALL顯著高于AML(P<0.05);4周化療完全緩解組均仍高于正常對照組(P<0.05);ALL組低于初治時水平(P<0.05),AML與初治時無差異(P>0.05);長期緩解組ALL低于4周緩解組(P>0.05),與正常對照組無差異(P<0.05),見表2。
sEPO與血紅蛋白(Hb)之間呈顯著負(fù)相關(guān)關(guān)系(P<0.01,n=54)。見圖1。
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sIL-3和sEPO之間及二者與骨髓紅細(xì)胞計數(shù)之間無顯著相關(guān)關(guān)系。
表1 各組sIL-3水平比較 (略)
表2 各組sEPO水平比較 (略)
圖1 促紅細(xì)胞生成素與血紅蛋白相關(guān)性(略)
3 討論
IL-3又稱多能干細(xì)胞刺激因子,是造血生長因子家族成員中的一份子。IL-3由激活的T淋巴細(xì)胞、自然殺傷細(xì)胞、肥大細(xì)胞、嗜酸性粒細(xì)胞分泌,具有調(diào)節(jié)多能造血干細(xì)胞定向分化和增殖的功能 [1] ,對多種細(xì)胞分化成熟起促進作用,如紅細(xì)胞、中性粒細(xì)胞、巨核細(xì)胞、肥大細(xì)胞、巨噬細(xì)胞、嗜酸性粒細(xì)胞等。目前重組人IL-3(rhIL-3)初步試用于臨床,主要用于骨髓增生異常綜合征、再生障礙性貧血、惡性腫瘤化療后骨髓抑制及自體骨髓移植后造血恢復(fù)等,并取得一定效果,而rhIL-3在白血病的治療上存在著爭議。Munoz L研究發(fā)現(xiàn)IL-3受體α鏈廣泛表達(dá)在AML及B細(xì)胞ALL細(xì)胞表面,而在正常淋巴祖細(xì)胞則缺乏此受體表達(dá) [2] 。我們發(fā)現(xiàn)IL-3在ALL緩解前后與正常對照組無差別,表明ALL的發(fā)病機制不是通過血液中IL-3的增高,但也有可能通過IL-3受體的高表達(dá)參與刺激白血病細(xì)胞增殖。IL-3在AML中顯著增高,表明AML時IL-3在體內(nèi)表達(dá)紊亂。已證明IL-3不僅促進多能干細(xì)胞增殖,也是AML細(xì)胞增殖的有效刺激物 [3] ,但很少使白血病細(xì)胞最終分化成熟 [4] ,所以增高的IL-3可能刺激白血病細(xì)胞的增殖從而參與了AML的發(fā)病。我們的結(jié)果與Elbaz O的研究一致 [5] 。因此提示急性白血病患兒使用sIL-3時一定要慎重。本研究AML4周化療緩解后IL-3仍增高,可能和觀察的時間短及病例數(shù)少有關(guān),理論上長期緩解的患兒IL-3應(yīng)該逐漸向正常水平恢復(fù)。具體機制尚需進一步探討。
, 百拇醫(yī)藥
sEPO是紅系造血的主要調(diào)節(jié)因子,對紅系有特異性作用。Dowd [6] 等對24例急性白血病患兒(ALL22例,AML2例)隨訪4個月,同時測定sEPO及Hb水平,發(fā)現(xiàn)logEPO與Hb之間存在顯著負(fù)相關(guān)關(guān)系(P<0.01,n=100),與Corazˉza[7] 等的報道一致。而Rokicka-Piotrowicz [8] 等則認(rèn)為急性白血病sEPO顯著增高,但與Hb的增高不成比率。我們的結(jié)果顯示ALL、AML患兒未經(jīng)治療時sEPO均顯著增高,治療后逐漸下降,sEPO與Hb呈顯著負(fù)相關(guān)關(guān)系。表明急性白血病時EPO對貧血的負(fù)反饋機制是完整的,因此提示急性白血病貧血不是由于機體EPO產(chǎn)生不足導(dǎo)致,而可能主要是骨髓紅系造血受抑制所致。
白細(xì)胞介素-3是多能干細(xì)胞刺激因子,具有調(diào)節(jié)多能造血干細(xì)胞定向分化和增殖的功能,能促進紅系細(xì)胞生成,sEPO也與紅細(xì)胞生成密切相關(guān)。而本文對白血病患兒研究未發(fā)現(xiàn)二者與白血病患者骨髓紅細(xì)胞生成有顯著相關(guān) 性,且sIL-3、sEPO也無相關(guān)。提示白血病貧血不是由于sEPO、sIL-3缺乏導(dǎo)致。二者在白血病治療中的作用可能有限。
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參考文獻(xiàn)
1 董永綏.兒科免疫學(xué).武漢:湖北科學(xué)技術(shù)出版社,1998,23.
2 Munoz L,Nomdedeu JF,Lopez O,et al.Interleukin-3receptor alpha chain(CD123)is widely expressed in hematologic malignancies.Haematologica,2001,86(12):1261-1269.
3 Guan Y,Hogge DE.Proliferative status of primitive hematopoietic proˉgenitors from patients with acute myelogenous leukemia(AML).Leukemia,2000,14(12):2135-2141.
, 百拇醫(yī)藥 4 Salem M,Delwel R,Mahmoud LA,et al.Maturation of human acute myeloid leukaemia in vitro:the response to five recombinant haematopoiˉetic factors in a serum-free system.Br J Haematol,1989,71(3):363-370.
5 Elbaz O,Shaltout A.Implication of Granulocyte-Macrophage Colony Stimulating Factor(GM-CSF)and Interleukin-3(IL-3)in Children with Acute Myeloid Leukaemia(AML);Malignancy.Hematol,2001,5(5):383-388.
6 Dowd MD,Morgan ER,Langman CB,et al.Serum erythropoietin levels in children with leukemia.Med Pediatr Oncol,1997,28(4):259-267.
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7 Corazza F,Beguin Y,Bergmann P,et al.Anemia in children with cancer is associated with decreased erythropoietic activity and not with inadeˉquate erythropoietin production.Blood,1998,92(5):1793-1798.
8 Rokicka-Piotrowicz M,Paszkowska M,Kuratowska Z.Anemia and eryˉthropoietin level in some hematologymalignancies.Pol ArchMed Wewn,1994,92(5):409-416.
作者單位:1 200032 復(fù)旦大學(xué)上海醫(yī)學(xué)院兒科醫(yī)院
2 450052 鄭州大學(xué)第一附屬醫(yī)院兒科
(收稿日期:2003-06-29)
(編輯 小川), http://www.www.srpcoatings.com(趙曉晴 劉玉峰)
, 百拇醫(yī)藥
關(guān)鍵詞 白細(xì)胞介素-3 血清促紅細(xì)胞生成素 急性白血病 貧血 治療
【文獻(xiàn)標(biāo)識碼】 A 【文章編號】 1680-6115(2003)10-0865-03
Meaningfulness of serum interleukin-3and serum erythropoietin
in acute leukemic children
Zhao Xiaoqing,Liu Yufeng
Children’s Hospital of Fudan University,Shanghai200032.
【Abstract】 Objective To study serum interleukin-3(sIL-3)and serum erythropoietin(sEPO)and their possible therapeutic efficacy in acute leukemic children.Methods The values of sIL-3were measured by sandwich ELISA and sEPOwere determined by radioimmunoassay.Results (1)sIL-3levels in ALL before therapy group were(195.83±108.25)pg/ml,in AML were(503.18±193.01)pg/ml,and healthy control were(192.50±93.25)pg/ml.There were no significant differences between ALLand healthy control(P>0.05).AMLwere significantly higher than that of healthycontrol(P<0.01)and ALL(P<0.01);complete remission(CR)group after4weeks ofchemotherapy in ALL were(184.64±75.92)pg/ml,AML were(441.25±54.52)pg/ml,both were no significant differences with that of before therapy group,respectively(P>0.05);the CR group of long time in ALLwas(175.77±91.56)pg/ml,which was no differences with that of healthy group and CR group after4weeks of chemotherapy(P>0.05).(2)sEPO levels in ALL before therapy were(42.47±26.47)mIU/ml,in AML were(24.30±13.06)mIU/ml,and healthy control were(10.33±2.62)mIU/ml.ALL and AML were significantly higher than that of healthy control respectively(P<0.01,P<0.05),ALL were higher than that of AML(P<0.05);CR group after4weeks of chemotherapy in ALL were(22.59±13.33)mIU/ml,AML were(22.85±12.66)mIU/ml,both were still higher than that of healthy control(P<0.05).ALL werelower than before therapy group(P<0.05),AML was no differences with that of before therapy group(P>0.05);CR group of long time in ALLwere(12.77±4.33)mIU/ml were lower than CR group after4weeks of therapy(P>0.05),and no differences with that of healthy control(P<0.05).sEPO was significantly negative associated with Hb(P<0.01,n=54,not including the CR group of long time).(3)There were no correlations between sIL-3and sEPO,and neither between each of them and nucleated eryˉthrocytes counts of bone marrow.Conclusion sIL-3is probably one ofthe main causes of AML,and ALL is not caused by the increased sIL-3;Anemia of acute leukemic children is not caused by inadequate erythropoietin producˉtion;treatment of acute leukemic anemia with sIL-3should be taken with caution,and treatment with rHuEPO might be of limited efficacy.
, http://www.www.srpcoatings.com
Key words serum interleukin-3 serum erythropoietin acute leukemia anemia therapy
白血病是嚴(yán)重威脅兒童生命的惡性腫瘤。在急性白血病化療前后,但作為多能干細(xì)胞刺激因子的白細(xì)胞介素-3(interleukin-3,IL-3)及反映體內(nèi)紅細(xì)胞生成能力的血清促紅細(xì)胞生成素(serum erythropoietin,sEPO)的變化及其二者關(guān)系探討較少。我們對急性白血病患兒血清IL-3(sIL-3)和sEPO進行了檢測,現(xiàn)報告如下。
1 對象與方法
1.1 對象與分組 選擇2000年9月~2001年7月在鄭州大學(xué)第一附屬醫(yī)院兒科收治的急性白血病患兒48例,男28例,女20例,平均年齡7.19歲。包括急性淋巴細(xì)胞白血病(ALL)組:L 1型30例,L 2 型7例。入院前未經(jīng)治療者(下稱初治組)24例,其中入院后接受化療并在4周內(nèi)骨髓完全緩解者14例,已完全緩解6個月~3年者(長期緩解組)13例。急性髓性白血病(AML)組:M 1 型4例,M 2 型7例,入院前均未經(jīng)治療,其中入院后接受化療并經(jīng)4周化療骨髓完全緩解者5例。同時選20例同齡健康兒童作為正常對照組。
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1.2 方法
1.2.1 診治方法 ALL患兒參考1998年全國小兒血液病學(xué)術(shù)會議上提出的《小兒急性淋巴細(xì)胞白血病診療建議(第二次修訂草案)》標(biāo)準(zhǔn)診治:誘導(dǎo)緩解期接受激素誘導(dǎo)1周,VDLP方案治療1個月;AML患兒采用2000年全國小兒血液病學(xué)術(shù)會議上提出的《兒童急性髓系白血病診療建議》標(biāo)準(zhǔn)診治。
1.2.2 標(biāo)本采集 取初治、完全緩解及正常兒童清晨空腹非抗凝血4ml,靜置2h后,2500rpm離心20min,收集血清標(biāo)本-70℃凍存。
1.2.3 測定方法 血清IL-3測定采用雙抗夾心ELISA法,試劑為晶美生物工程有限公司進口分裝產(chǎn)品;sEPO測定采用放射免疫分析法,試劑為北京華英生物技術(shù)研究所產(chǎn)品。實驗均按說明書進行操作。
1.3 統(tǒng)計學(xué)方法 應(yīng)用統(tǒng)計學(xué)分析軟件包SPSS10.0進行統(tǒng)計學(xué)分析,統(tǒng)計方法采用t檢驗,方差分析等。
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2 結(jié)果
2.1 sIL-3 ALL初治組與正常對照組比較差異無顯著性(P>0.05),AML初治組顯著高于正常組(P<0.01)及ALL初治組(P<0.01);4周化療骨髓完全緩解組ALL與初治組比較差異無顯著性(P>0.05),AML與初治組比較亦差異無顯著性(P>0.05);ALL長期緩解組與4周化療緩解組及正常對照組比較差異無顯著性(P>0.05),見表1。
2.2 sEPO 初治組ALL、AML顯著高于正常對照組(P<0.01,P<0.05),ALL顯著高于AML(P<0.05);4周化療完全緩解組均仍高于正常對照組(P<0.05);ALL組低于初治時水平(P<0.05),AML與初治時無差異(P>0.05);長期緩解組ALL低于4周緩解組(P>0.05),與正常對照組無差異(P<0.05),見表2。
sEPO與血紅蛋白(Hb)之間呈顯著負(fù)相關(guān)關(guān)系(P<0.01,n=54)。見圖1。
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sIL-3和sEPO之間及二者與骨髓紅細(xì)胞計數(shù)之間無顯著相關(guān)關(guān)系。
表1 各組sIL-3水平比較 (略)
表2 各組sEPO水平比較 (略)
圖1 促紅細(xì)胞生成素與血紅蛋白相關(guān)性(略)
3 討論
IL-3又稱多能干細(xì)胞刺激因子,是造血生長因子家族成員中的一份子。IL-3由激活的T淋巴細(xì)胞、自然殺傷細(xì)胞、肥大細(xì)胞、嗜酸性粒細(xì)胞分泌,具有調(diào)節(jié)多能造血干細(xì)胞定向分化和增殖的功能 [1] ,對多種細(xì)胞分化成熟起促進作用,如紅細(xì)胞、中性粒細(xì)胞、巨核細(xì)胞、肥大細(xì)胞、巨噬細(xì)胞、嗜酸性粒細(xì)胞等。目前重組人IL-3(rhIL-3)初步試用于臨床,主要用于骨髓增生異常綜合征、再生障礙性貧血、惡性腫瘤化療后骨髓抑制及自體骨髓移植后造血恢復(fù)等,并取得一定效果,而rhIL-3在白血病的治療上存在著爭議。Munoz L研究發(fā)現(xiàn)IL-3受體α鏈廣泛表達(dá)在AML及B細(xì)胞ALL細(xì)胞表面,而在正常淋巴祖細(xì)胞則缺乏此受體表達(dá) [2] 。我們發(fā)現(xiàn)IL-3在ALL緩解前后與正常對照組無差別,表明ALL的發(fā)病機制不是通過血液中IL-3的增高,但也有可能通過IL-3受體的高表達(dá)參與刺激白血病細(xì)胞增殖。IL-3在AML中顯著增高,表明AML時IL-3在體內(nèi)表達(dá)紊亂。已證明IL-3不僅促進多能干細(xì)胞增殖,也是AML細(xì)胞增殖的有效刺激物 [3] ,但很少使白血病細(xì)胞最終分化成熟 [4] ,所以增高的IL-3可能刺激白血病細(xì)胞的增殖從而參與了AML的發(fā)病。我們的結(jié)果與Elbaz O的研究一致 [5] 。因此提示急性白血病患兒使用sIL-3時一定要慎重。本研究AML4周化療緩解后IL-3仍增高,可能和觀察的時間短及病例數(shù)少有關(guān),理論上長期緩解的患兒IL-3應(yīng)該逐漸向正常水平恢復(fù)。具體機制尚需進一步探討。
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sEPO是紅系造血的主要調(diào)節(jié)因子,對紅系有特異性作用。Dowd [6] 等對24例急性白血病患兒(ALL22例,AML2例)隨訪4個月,同時測定sEPO及Hb水平,發(fā)現(xiàn)logEPO與Hb之間存在顯著負(fù)相關(guān)關(guān)系(P<0.01,n=100),與Corazˉza[7] 等的報道一致。而Rokicka-Piotrowicz [8] 等則認(rèn)為急性白血病sEPO顯著增高,但與Hb的增高不成比率。我們的結(jié)果顯示ALL、AML患兒未經(jīng)治療時sEPO均顯著增高,治療后逐漸下降,sEPO與Hb呈顯著負(fù)相關(guān)關(guān)系。表明急性白血病時EPO對貧血的負(fù)反饋機制是完整的,因此提示急性白血病貧血不是由于機體EPO產(chǎn)生不足導(dǎo)致,而可能主要是骨髓紅系造血受抑制所致。
白細(xì)胞介素-3是多能干細(xì)胞刺激因子,具有調(diào)節(jié)多能造血干細(xì)胞定向分化和增殖的功能,能促進紅系細(xì)胞生成,sEPO也與紅細(xì)胞生成密切相關(guān)。而本文對白血病患兒研究未發(fā)現(xiàn)二者與白血病患者骨髓紅細(xì)胞生成有顯著相關(guān) 性,且sIL-3、sEPO也無相關(guān)。提示白血病貧血不是由于sEPO、sIL-3缺乏導(dǎo)致。二者在白血病治療中的作用可能有限。
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參考文獻(xiàn)
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3 Guan Y,Hogge DE.Proliferative status of primitive hematopoietic proˉgenitors from patients with acute myelogenous leukemia(AML).Leukemia,2000,14(12):2135-2141.
, 百拇醫(yī)藥 4 Salem M,Delwel R,Mahmoud LA,et al.Maturation of human acute myeloid leukaemia in vitro:the response to five recombinant haematopoiˉetic factors in a serum-free system.Br J Haematol,1989,71(3):363-370.
5 Elbaz O,Shaltout A.Implication of Granulocyte-Macrophage Colony Stimulating Factor(GM-CSF)and Interleukin-3(IL-3)in Children with Acute Myeloid Leukaemia(AML);Malignancy.Hematol,2001,5(5):383-388.
6 Dowd MD,Morgan ER,Langman CB,et al.Serum erythropoietin levels in children with leukemia.Med Pediatr Oncol,1997,28(4):259-267.
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7 Corazza F,Beguin Y,Bergmann P,et al.Anemia in children with cancer is associated with decreased erythropoietic activity and not with inadeˉquate erythropoietin production.Blood,1998,92(5):1793-1798.
8 Rokicka-Piotrowicz M,Paszkowska M,Kuratowska Z.Anemia and eryˉthropoietin level in some hematologymalignancies.Pol ArchMed Wewn,1994,92(5):409-416.
作者單位:1 200032 復(fù)旦大學(xué)上海醫(yī)學(xué)院兒科醫(yī)院
2 450052 鄭州大學(xué)第一附屬醫(yī)院兒科
(收稿日期:2003-06-29)
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