德国,美因茨,2016年7月12日:来自2016年BMC Cancer杂志第16期中的一项最新技术验证性试验报道,浙江数问生物技术有限公司和BioNTech诊断公司旗下产品妈妈泰谱®(MAMMATYPER®)在乳腺癌分子分型中具有极高的判定精准度[1]。该项研究结果再一次证明,与目前临床上的常规检测手段相比,妈妈泰谱®不仅在无病生存期和总生存期预测方面占据优势[2],而且在技术层面也具有巨大的先进性。
免疫组化(IHC)和FISH/CISH是目前临床上对乳腺癌分子分型四种标记物检测的常规手段,但其实在临床很多方面特别是标记物Ki-67的判断上仍存在很多问题[3-7]。而妈妈泰谱®产品则是通过全新实时荧光定量PCR(RT-qPCR)方法检测肿瘤FFPE切片中四种标记物的mRNA表达,从而解决了上述难题。实际上,之前的研究已经证明该项技术在和IHC的比较中具有更大的临床优势[8-10]。
此次发布在BMC Cancer杂志中的研究主要从三个方面对妈妈泰谱®产品进行技术性验证,分别是试验地点,样本肿瘤细胞比例和RNA准备方法。实验分别在三个不同的地点,使用不同的RT-qPCR仪器并对包含标志物基因不同表达状态的FFPE样本进行了多项重复性对比实验。
对同一试验地点而言,使用2种不同的RT-qPCR仪器检测发现,二者对四种标志物检测的结果一致性分别是100% ERBB2, 96.9% ESR1, 97.2% PGR和98.6% MKI67。在不同的试验地点间,妈妈泰谱®对所有上述四个标记物的检测一致性均超过96%。而对一份常规的临床样本而言,即使提取RNA的稀释倍数达到了64倍,即使非肿瘤组织比例达到80%(包括原位癌),妈妈泰谱®的检测结果依然可靠稳定。
BioNTech诊断公司总经理Dr. Sierk Poetting对此评价道:“这表明即便是在不同的实验地点和其它多种不同的条件下,妈妈泰谱®试剂盒的检测结果依旧是极其稳定的。而毫无疑问,妈妈泰谱®是一项精准的、可被标准化的且又重复性极高的乳腺癌分子分型诊断产品。”
总之,通过对四种分子分型标记物的精准、定量而又重复性极高的试验判定,妈妈泰谱®可以大为提高乳腺癌患者诊断水平。
目前,数问生物应用从德国独家引进的妈妈泰谱®进行的检测服务已经全面开展,与此同时,数问生物也已经完成国际多中心技术性验证和其它辅助研究,这些研究都显示了妈妈泰谱®的巨大诊疗优势,并且可以帮助临床医生和乳腺癌患者真正达到乳腺癌的精准治疗。
参考文献:
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