血清BAFF在ITP和AIHA患者中的表达及临床意义
发布时间:2018-07-16 13:11
【摘要】:目的:免疫性血小板减少症(Immune thrombocytopenia,ITP),是血小板被自身抗体调理并被巨噬细胞破坏的获得性器官特异性的自身免疫性疾病,是典型的B细胞介导的自身免疫性疾病。自身免疫性溶血性贫血(autoimmune hemolytic anemia,AIHA)是机体产生自身抗体结合在红细胞膜上的抗原导致红细胞寿命缩短的一组疾病。BAFF(B-cell activating factor of the TNF family)是1999年发现的肿瘤坏死因子超家族成员(TNFsF)之一,BAFF的作用具有明显的B细胞趋化性,在体外它作为B细胞增殖和分化的共刺激因子,BAFF可以结合B淋巴细胞并促进其增殖、分化、分泌免疫球蛋白,参与机体的自身免疫反应。在体内可以介导外周不成熟B细胞的存活并使其分化为成熟的B细胞。人重组或内源BAFF能够刺激T细胞分泌IFN-γ,并以IL-2依赖方式促进T细胞增生,在抗CD3抗体激活的T细胞中,BAFF能上调Bc1-2表达,表明BAFF也是激活T细胞的特异的存活因子。BAFF是B细胞成熟检查点期间的关键生存因子之一,这个阶段过多的产生BAFF能破坏B细胞的自身耐受,导致自身免疫性疾病的发生,而BAFF产生过少则会导致体液免疫缺陷,与普通变异型免疫缺陷病相关。许多自身免疫性疾病如系统性红斑狼疮、类风湿性关节炎、干燥综合征、韦格纳(氏)肉芽肿中都检测到了升高的血清可溶性BAFF水平。近年来研究发现在ITP患者中检测到升高的血清BAFF水平,但鲜有关于AIHA血清BAFF的报道。为了进一步研究血清BAFF在ITP和AIHA患者发病机制中的作用,本研究测定了ITP和AIHA患者血清可溶性BAFF的水平,以进一步明确ITP、AIHA的发病是否和BAFF存在一定的关系及治疗前后其水平的变化,并且分析血红蛋白水平、血小板水平、自身抗体水平、网织红细胞水平、Ig水平、C反应蛋白、类风湿因子、抗链球菌溶血素“O”、红细胞沉降率水平等临床指标与血清BAFF水平的相关性,初步探讨BAFF在这两种疾病中的作用,为临床诊断和治疗提供新思路。 研究对象和方法:(1)标本选自河北医科大学第二医院血液科2010年3月至2011年2月间初诊的51例ITP患者和16例AIHA患者;难治复发ITP患者24例;河北医科大学第二医院查体中心健康查体人员28例做正常对照。研究对象分为六组:①初诊ITP组:共51例,男17例,女34例,平均年龄40岁,包括4例未治疗患者。②复诊ITP组:来自上述初诊ITP组经皮质激素治疗2周后和未治疗患者共51例。③复发难治性ITP组:共24例,男10例,女14例,平均年龄35.3岁,包括复发ITP患者20例,难治性ITP患者4例。④初诊AIHA组:共16例,男6例,女10例,平均年龄47.5岁。⑤复诊AIHA组:来自上述初诊AIHA组经皮质激素治疗2周后患者共16例。⑥正常对照组:取自查体中心健康查体人员共28例,男14例,女14例,平均年龄34岁。(2)采集外周血标本,提取血清,用双抗体夹心酶联免疫吸附法(ELASA)测定血清BAFF的水平。搜集患者性别、年龄、免疫球蛋白、血红蛋白、网织红细胞、血小板数、抗核抗体、C反应蛋白、类风湿因子、抗链球菌溶血素“O”、红细胞沉降率等实验室指标。(3)所得结果运用SPSS13.0统计软件包处理,数据以(?)±s表示,采用t检验做两两比较,采用单因素方差分析(one-way ANOVA)做多样本均数比较。血清BAFF水平与各实验室指标之间的相关性通过Pearson相关分析。以α=0.05为显著性检验水准。 结果: 1正常对照组血清BAFF水平:共28例,其中男14例,女14例。血清BAFF表达水平情况,以((?)±s)表示:(1039±198)ng/L。 2初诊ITP患者血清BAFF水平:共51例,其中男17例,女34例。血清BAFF表达水平为(1363±299)ng/L。初诊ITP患者血清BAFF表达水平明显高于正常对照组,差异有统计学意义(P0.05)。 3初诊ITP患者口服皮质激素治疗后(2周)BAFF水平的变化: (1)治疗后血小板计数≥100×10~9/L:共有10例,治疗前、后BAFF水平分别为:(1425±276)ng/L、(891±107)ng/L。治疗前BAFF水平明显高于治疗后BAFF表达水平差异有统计学意义(P0.05);治疗后BAFF水平和正常对照组BAFF表达水平无显著性差异(P0.05)。 (2)治疗后100×10~9/L血小板计数50×10~9/L:共有4例,治疗前后BAFF水平分别为(1417±130)ng/L、(1156±108)ng/L。治疗前BAFF水平与治疗后BAFF水平差异无统计学意义(P0.05);治疗后BAFF水平和正常对照组BAFF表达水平无统计学意义(P0.05)。 (3)血小板计数≤50×10~9 /L:共有2例,治疗前后BAFF水平分别为:(1613±383)ng/L、(1296±189)ng/L。经过治疗后BAFF水平出现下降趋势,但是治疗前后BAFF表达水平无统计学意义(P0.05);治疗前后BAFF水平明显高于正常对照组BAFF水平且有统计学意义(P0.05)。 4初诊ITP患者静脉大剂量皮质激素治疗后(2周)BAFF水平的变化: (1)血小板计数≥100×10~9/L:共有27例,治疗前、后BAFF水平分别为:(1366±332)ng/L、(935±221)ng/L。治疗前BAFF水平明显高于治疗后BAFF表达水平差异有统计学意义(P0.05);治疗后BAFF水平和正常对照组BAFF表达水平无显著性差异(P0.05)。 (2)治疗后100×10~9/L血小板计数50×10~9/L:共有3例,治疗前后BAFF水平分别为(1517±136)ng/L、(1271±150)ng/L。治疗前BAFF水平与治疗后BAFF水平差异无统计学意义(P0.05);治疗后BAFF水平和正常对照组BAFF表达水平无统计学意义(P0.05)。 (3)血小板计数≤50×10~9 /L:共有1例,治疗前后BAFF水平分别为:1513ng/L、1306ng/L。经过治疗后BAFF水平出现下降趋势,但是BAFF表达水平仍明显高于正常对照组。 5口服皮质激素和静脉大剂量皮质激素治疗后BAFF表达水平分别为:(1008±194)ng/L,(978±230)ng/L,差异无统计学意义。 6皮质激素治疗后复发ITP患者血清BAFF水平:共20例,其中男7例,女13例。血清BAFF水平表达情况为:(1286±278)ng/L。复发ITP患者BAFF水平与初治ITP患者BAFF水平表达无统计学意义(P0.05);复发ITP患者BAFF水平明显高于正常对照组BAFF表达水平有统计学意义(P0.05)。 7难治性ITP患者血清BAFF水平:共4例,其中男3例,女1例。治疗前、后血清BAFF水平分别为(1402±299)ng/L、(1223±173)ng/L。经观察,治疗后还是出现了下降趋势,但是治疗前后BAFF表达水平无统计学意义(P0.05)。难治性ITP治疗前、后与初诊ITP患者BAFF表达水平均无统计学意义(P0.05)。 8未治疗ITP患者血清BAFF水平:共4例,其中男3例,女1例。(1169±171)ng/L,2周后BAFF表达水平为(1038±92)ng/L.与正常对照组BAFF表达水平无统计学意义(P0.05)。 9初诊AIHA患者血清BAFF水平:共16例,其中男6例,女10例。血清BAFF表达水平为(1574±286)ng/L。初诊AIHA患者BAFF表达水平明显高于正常对照组有统计学及意义(P0.05)。 10初诊AIHA患者静脉大剂量皮质激素治疗后(2周)血清BAFF水平: (1)血红蛋白计数≥110g/L:共9例,其中男3例,女6例。治疗前后后BAFF水平分别为:(1478±295)ng/L,(840±183)ng/L。治疗前BAFF水平明显高于治疗后BAFF表达水平差异有统计学意义(P0.05);治疗后BAFF水平低于正常对照组BAFF表达水平有显著性差异(P0.05)。 (2) 110g/L血红蛋白计数80g/L:共5例,男1例,女4例。治疗前后BAFF水平分别为:(1684±255)ng/L、(1052±191)ng/L。治疗前BAFF水平明显高于治疗后BAFF水平,差异有统计学意义(P0.05);治疗后BAFF水平和正常对照组BAFF表达水平无统计学意义(P0.05)。 (3)血红蛋白计数≤80g/L:共2例,均为男性。治疗前后BAFF水平分别为:(1727±276)ng/L、(1423±140)ng/L。经观察,治疗后BAFF水平出现下降趋势,但治疗前后BAFF表达水平无统计学意义(P0.05);但是治疗前后BAFF水平明显高于正常对照组BAFF水平且有统计学意义(P0.05)。 11 BAFF与患者性别、年龄、Ig水平、血红蛋白水平、血小板水平、网织红细胞水平、抗核抗体水平、C反应蛋白、类风湿因子、抗链球菌溶血素“O”、红细胞沉降率水平的相关关系:在ITP患者中,将性别、年龄、血小板计数、Ig水平、抗核抗体、C反应蛋白、类风湿因子、抗链球菌溶血素“O”、红细胞沉降率等纳入分析指标,未发现BAFF水平与各临床参数之间存在相关性。在AIHA患者中,未发现BAFF水平和患者性别、年龄、血红蛋白水平、网织红细胞水平、Ig水平、抗核抗体、C反应蛋白、类风湿因子、抗链球菌溶血素“O”、红细胞沉降率水平等之间存在相关性。 结论: 1初诊ITP组、复发难治性ITP组血清BAFF水平均高于复诊ITP组和正常对照组,初诊ITP组和复发难治性ITP组比较无显著性差异,复诊ITP组(除未治疗ITP患者外)和正常对照组比较无显著性差异。 2血清BAFF水平在难治性ITP患者治疗前后无统计学意义,但均高于正常对照组。 3经过皮质激素治疗后血小板计数小于100×10~9/L的患者治疗前后血清BAFF水平无统计学意义,但高于正常对照组。 4在ITP患者中口服皮质激素和静脉大剂量皮质激素治疗后BAFF表达水平无统计学意义。 5初诊AIHA组血清BAFF水平高于复诊AIHA组和正常对照组,复诊AIHA组和正常对照组无显著性差异。 6经过皮质激素治疗后血红蛋白计数小于80g/L的患者治疗前后血清BAFF水平无统计学意义,但高于正常对照组。经过免疫抑制以后,BAFF水平出现了不同程度的下降,上述提示血清BAFF在ITP和AIHA的发病机制中可能发挥了一定的作用。 7对ITP和AIHA患者血清BAFF浓度与患者性别、年龄、血小板水平、血红蛋白水平、网织红细胞水平、Ig水平、ANA水平、C反应蛋白、抗溶血性链球菌“O”、类风湿因子、红细胞沉降率水平等进行相关性分析,未发现与相关实验室数据存在相关性。推测不能以血小板、血红蛋白等实验室数据来判断BAFF水平,单纯BAFF水平升高并不能反应疾病的严重程度。 8血清BAFF水平检测可能为ITP和AIHA患者疾病进程、药物治疗,预后评估提供依据。
[Abstract]:BAFF ( BAFF ) is one of the key survival factors in patients with ITP and AIHA . BAFF can stimulate T cell to secrete IFN - 纬 . In order to further study the effect of BAFF on the pathogenesis of ITP and AIHA , BAFF can stimulate T cell to secrete IFN - 纬 . The correlation between clinical indexes such as erythrocyte sedimentation rate and serum BAFF level was discussed , and the role of BAFF in these two diseases was preliminarily discussed , which provided a new idea for clinical diagnosis and treatment .
Methods : ( 1 ) From March 2010 to February 2011 , the specimens were selected from 51 ITP patients and 16 AIHA patients from the Second Affiliated Hospital of Hebei Medical University from March 2010 to February 2011 . ( 3 ) The results were treated with SPSS 13.0 software . The data was expressed by ( ? ) 卤 s , and two comparisons were made with t - test . One - way ANOVA was used to compare the number of samples . The correlation between serum BAFF level and laboratory indexes was analyzed by Pearson correlation .
Results :
The serum BAFF level in normal control group was 28 cases , including 14 males and 14 females . The levels of serum BAFF were expressed as ( 卤 s ) : ( 1039 卤 198 ) ng / L .
The levels of BAFF in serum BAFF were ( 1363 卤 299 ) ng / L and ( 1363 卤 299 ) ng / L , respectively .
3 Changes in BAFF levels in patients with ITP after oral corticosteroids ( 2 weeks ) :
( 1 ) The post - treatment platelet count 鈮,
本文编号:2126493
[Abstract]:BAFF ( BAFF ) is one of the key survival factors in patients with ITP and AIHA . BAFF can stimulate T cell to secrete IFN - 纬 . In order to further study the effect of BAFF on the pathogenesis of ITP and AIHA , BAFF can stimulate T cell to secrete IFN - 纬 . The correlation between clinical indexes such as erythrocyte sedimentation rate and serum BAFF level was discussed , and the role of BAFF in these two diseases was preliminarily discussed , which provided a new idea for clinical diagnosis and treatment .
Methods : ( 1 ) From March 2010 to February 2011 , the specimens were selected from 51 ITP patients and 16 AIHA patients from the Second Affiliated Hospital of Hebei Medical University from March 2010 to February 2011 . ( 3 ) The results were treated with SPSS 13.0 software . The data was expressed by ( ? ) 卤 s , and two comparisons were made with t - test . One - way ANOVA was used to compare the number of samples . The correlation between serum BAFF level and laboratory indexes was analyzed by Pearson correlation .
Results :
The serum BAFF level in normal control group was 28 cases , including 14 males and 14 females . The levels of serum BAFF were expressed as ( 卤 s ) : ( 1039 卤 198 ) ng / L .
The levels of BAFF in serum BAFF were ( 1363 卤 299 ) ng / L and ( 1363 卤 299 ) ng / L , respectively .
3 Changes in BAFF levels in patients with ITP after oral corticosteroids ( 2 weeks ) :
( 1 ) The post - treatment platelet count 鈮,
本文编号:2126493
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