CN110389165A - Cd93在制备预警婴幼儿血管瘤脐血检测试剂盒及治疗药物中的应用 - Google Patents

Cd93在制备预警婴幼儿血管瘤脐血检测试剂盒及治疗药物中的应用 Download PDF

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CN110389165A
CN110389165A CN201810366299.0A CN201810366299A CN110389165A CN 110389165 A CN110389165 A CN 110389165A CN 201810366299 A CN201810366299 A CN 201810366299A CN 110389165 A CN110389165 A CN 110389165A
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Abstract

本发明公开CD93在制备预警婴幼儿血管瘤脐血检测试剂盒及治疗药物中的应用。本研究发现新生儿脐血血清CD93具有预测/预警IH发生的重要作用,系IH肿瘤血清标记物。由于IH是婴幼儿最常见的良性肿瘤,而新生儿脐血恰好在IH发病前期易于足量采集,具无创伤、家属易于接受等优势,因此,研发以CD93为预测/预警蛋白的脐血检测试剂盒或试纸,以预警IH的发生,对IH开展早监测、早发现、早治疗,尽可能降低严重IH的致畸率,减少误诊误治率,具有极为重要的临床意义和社会价值。同时,提示CD93作为跨膜蛋白,能促进血管瘤干细胞血管生成,具有抗血管生成治疗靶标的重要意义,可应用于制备相关的治疗药物及预防用药,以开展IH的早期治疗及预防。

Description

CD93在制备预警婴幼儿血管瘤脐血检测试剂盒及治疗药物中 的应用
技术领域
本发明涉及生物技术领域,尤其涉及CD93在制备预警婴幼儿血管瘤(Infantilehemangioma,IH)的脐血检测试剂盒中的应用。
背景技术
IH是最常见的婴幼儿良性肿瘤。在中国,发病率高达4-10%,流行病学研究发现女婴、早产儿与低体重儿中更常见,其中男女发病比例约为1:4。其独特的快速增殖与自然消退病程,使之成为人类观察肿瘤性血管生成的唯一天然模型。更重要的是,鉴于IH的高发病率、高侵袭性、独特的病程与流行病学表现,及不甚满意的治疗现状,探索其病因及发生发展机制成为国内外学者研究的热点和难点。
IH常于出生数周内出现,短期内迅速增殖,进展极快。60%以上瘤体位于颜面部,数周的生长就可能侵袭眼鼻口等器官,损毁患儿的容貌。除外观之外,部分病例还可伴发大面积溃疡、感染、呼吸道压迫梗阻、血小板减少等,甚至危及生命。经历一年左右的增生后,IH逐渐稳定,进入长达多年的退化期,但畸形的遗留和心理的创伤难以避免。目前,IH病因及发病机制尚未阐明,治疗缺乏特异性,其危害不容小觑,由于部分IH易与静脉畸形等表观类似的体表肿物相混淆,造成误诊误治,不但延误治疗,还给患儿带来不必要的医源性损伤。
IH发病率高,好发于面部,发病早而快,数周内迅速生长,猝不及防,给无数家庭带来延续多年,甚至终生的灾难,是中国弃婴的一个重要原因。但遗憾的是,目前尚缺乏预测IH发生的血清预警蛋白。
因此,寻找脐血预警蛋白,预测IH发生,对IH(尤其是严重IH)的早期监测、早期治疗、甚至预防IH发生,具有极为重要的临床意义和社会价值。同时,该预警蛋白的发现将为发病机制研究提供重要的线索,为开发相关药物,甚至预防用药提供新的切入点。
发明内容
本发明的第一个目的在于,提供CD93在制备预警婴幼儿血管瘤的脐血检测试剂盒中的应用。
本发明的第二个目的在于,提供CD93在制备治疗婴幼儿血管瘤药物中的应用。
本发明的第三个目的在于,提供CD93在制备预防婴幼儿血管瘤药物中的应用。
本发明的第四个目的在于,提供CD93在制备血管瘤血清标记物中的应用。
为了实现上述第一个目的,本发明提供了CD93在制备预警婴幼儿血管瘤的脐血检测试剂盒中的应用。
为了实现上述第二个目的,本发明提供了CD93在制备治疗婴幼儿血管瘤药物中的应用。
为了实现上述第三个目的,本发明提供了CD93在制备预防婴幼儿血管瘤药物中的应用。
为了实现以上第四个目的,本发明提供了CD93在制备血管瘤血清标记物中的应用。
本发明的优点在于,本研究发现新生儿脐血血清CD93具有预测/预警IH发生的重要作用,并具有很强的预测/预警价值(ROC曲线下面积达0.91,特异度达91.67%),系IH肿瘤血清标记物,以往IH研究中从未见报道,属源头创新。由于新生儿脐血恰好在IH发病前期易于足量采集,具无创伤、家属易于接受等优势,因此,研发以CD93为预测/预警蛋白的脐血检测试剂盒或试纸,广泛应用于新生儿出生阶段,以预警发病率高达4-10%,常于出生数周内出现且迅速增殖,易损毁容貌的IH的发生,对最常见的婴幼儿良性肿瘤——IH开展早监测、早发现、早治疗,尽可能降低严重IH的致畸率,减少误诊误治率,具有极为重要的临床意义和社会价值。同时,提示CD93作为跨膜蛋白,能促进血管瘤干细胞血管生成,具有抗血管生成治疗靶标的重要意义,可应用于制备相关的治疗药物及预防用药,以开展IH的早期治疗及预防。
附图说明
图1定量质谱检测结果聚类分析图。
图2样品间鉴定蛋白一致性分析。
图3为差异频次图。
图4为差异蛋白火山图分析。
图5CD93ELISA法血清学验证,提示两组血清间CD93表达水平存在显著性差异(P<0.01),实验组高于对照组。
图6ROC曲线分析,提示曲线下面积达0.9097,特异度91.67%,敏感度75%(P=0.0007),具有很强的诊断价值。
图7CD93ELISA法血清学验证重复实验,再次验证两组血清间CD93表达水平存在显著性差异(P<0.05),实验组高于对照组。
具体实施方式
以下,结合具体实施方式对本发明的技术进行详细描述。应当知道的是,以下具体实施方式仅用于帮助本领域技术人员理解本发明,而非对本发明的限制。
实施例1.新生儿脐血血清CD93具有预测/预警IH发生的重要作用
为寻找脐血预警蛋白,作如下实验标本采集和研究:
1、2014年至2016年前瞻性采集预留约1100例新生儿脐血血清标本,-80℃冰箱保存,实验过程中标本避免反复冻融。
2、每位新生儿均观察随访半年,发现IH的患儿共12例,从而将预留的血清标本分为两组:发生IH的实验组(随访阳性脐血血清)和未发生IH的对照组(随访阴性脐血血清)。
3、利用非标记定量蛋白质组学技术(Label-free quantitative proteomicstechnology)行定量质谱检测9对实验组和对照组血清样品,以获取两组间的差异蛋白。
4、聚类分析质谱检测结果,将实验组血清和对照组血清各聚成两类,绘制聚类图(图1),每类都有一些表达水平相当的蛋白。样品间鉴定蛋白一致性分析(图2a和图2b)提示一致性在80%以上,说明样品制备和分析重复性良好。两组血清蛋白差异频次符合正态分布(图3),可信度高。
5、检测对比9例实验组和9例对照组血清样品,共鉴定到517种差异蛋白,绘得差异蛋白火山图(图4),图中红色(右上角区域)及绿色(左上角区域)散点提示实验组和对照组血清间显著性定量差异蛋白(P<0.05,变化倍数>2.5倍),其中红点为增高超过2.5倍,绿点为降低超过2.5倍。红点所代表增高超过2.5倍的差异蛋白共19个,从中进行二次筛选:结合前期血管瘤组织标本基因芯片数据IPA(Ingenuity Pathway Analysis)生物信息分析结果,分析上述19个差异蛋白与血管瘤发病机制的相关性,筛选出4个增高超过2.5倍的差异蛋白。
针对这4个差异蛋白分别进一步行ELISA法血清学验证。最终检测得唯有CD93在两组间存在显著性差异(P<0.01),实验组表达水平高于对照组(图5)。受试者工作特征曲线(receiver operating characteristic curve,ROC曲线)分析提示:曲线下面积(AUC)达0.91,特异度91.67%,敏感度75%(P=0.0007),具有很强的诊断价值(图6)。并且,行重复实验,再次验证CD93在两组间存在显著性差异(P<0.05),实验组CD93表达水平高于对照组(图7)。得以重复验证的结果说明:IH患儿在尚未出现IH的刚出生阶段,其脐血血清CD93表达水平已出现增高迹象,说明脐血血清CD93具有预测/预警IH发生的功能。并且,ROC曲线AUC达0.91(AUC>0.9即具强诊断价值),特异度达91.67%说明该因子诊断价值强,预警意义高。同时,上述数据说明脐血CD93与IH的发病密切相关,系良好的肿瘤血清标记物,不但与IH的发生/发展呈伴随现象,而且可能是IH的致病因素和治疗靶标。CD93作为跨膜蛋白,提示能促进血管瘤干细胞血管生成,具有抗血管生成治疗靶标的重要意义,可应用于制备相关的治疗药物及预防用药,以开展IH的早期治疗及预防。
综上所述,本研究发现新生儿脐血血清CD93具有预测/预警IH发生的重要作用,并具有很强的预测/预警价值,系IH肿瘤血清标记物。CD93在以往血管瘤研究中未见报道,本研究属源头创新。
本研究发现新生儿脐血血清CD93具有预测/预警IH发生的重要作用,并具有很强的预测/预警价值(AUC达0.91,特异度达91.67%),因此,可利用新生儿脐血易于足量采集、无创伤、家属易于接受等优势,研发以CD93为预测/预警蛋白的脐血检测试剂盒或试纸,广泛应用于新生儿,以预警发病率高达4-10%的IH的发生,对IH(尤其是严重IH)开展早监测、早发现、早治疗,尽可能降低严重IH的致畸率,减少误诊误治率,具有极为重要的临床意义和社会价值。
以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。

Claims (4)

1.CD93在制备预警婴幼儿血管瘤的脐血检测试剂盒中的应用。
2.CD93在制备治疗婴幼儿血管瘤药物中的应用。
3.CD93在制备预防婴幼儿血管瘤药物中的应用。
4.CD93在制备血管瘤血清标记物中的应用。
CN201810366299.0A 2018-04-23 2018-04-23 Cd93在制备预警婴幼儿血管瘤脐血检测试剂盒及治疗药物中的应用 Pending CN110389165A (zh)

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PCT/CN2019/083833 WO2019206122A1 (zh) 2018-04-23 2019-04-23 Cd93在制备预警婴幼儿血管瘤脐血检测试剂盒及治疗药物中的应用
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