BMC Cancer:筛状和导管内前列腺癌与基因组不稳定性的增加和不同的基因组变异有关

2018-01-12 AlexYang MedSci原创

侵入性筛状和导管内恶性上皮肿瘤(CR/IDC)与前列腺病人副作用结果有关。最近,有研究人员进行了旨在确定前列腺癌中与CR/IDC相关的分子变异,并且聚焦在基因组不稳定性和体细胞数目改变上(CNA)。研究的数据来源于癌症基因组图谱项目(TCGA,N=260)和加拿大前列腺癌基因组网络(CPC-GENE, N =199)根治性前列腺癌切除术数据库,并用于确定格林森(GS)得分和CR/IDC的情况。研究

侵入性筛状和导管内恶性上皮肿瘤(CR/IDC)与前列腺病人副作用结果有关。最近,有研究人员进行了旨在确定前列腺癌中与CR/IDC相关的分子变异,并且聚焦在基因组不稳定性和体细胞数目改变上(CNA)。研究的数据来源于癌症基因组图谱项目(TCGA,N=260)和加拿大前列腺癌基因组网络(CPC-GENE, N =199)根治性前列腺癌切除术数据库,并用于确定格林森(GS)得分和CR/IDC的情况。

研究发现,CR/IDC生长在80/260(31%)TCGA和76/199 (38%) CPC-GENE案例中出现。在TCGA (2.2 倍; p =0.0003) 和CPC-GENE (1.7 倍; p =0.004) 群体中,患有CR/IDC以及≥GS7的病人具有比没有上述情况病人显著性更高的PGA。CR/IDC的生长与8p, 16q, 10q23, 13q22, 17p13, 21q22和8q24扩增的缺失相关。在TCGA数据库中,CNAs包括了总共1299个基因缺失和369个扩增,其中分别有474个和328个得到确定。其中,一些受影响的基因与侵入性前列腺癌相关,比如PTEN、BCAR1和MYC的获得。在TP53、SPOP和FOXA1中的点突变同样与CR/IDC相关,但是在CNAs中发生频率低。

最后,研究人员指出,CR/IDC的生长与基因组不稳定性的增加相关,并且聚集到了与侵入性前列腺癌相关的遗传区域。因此,CR/IDC是进行性分子肿瘤错乱的病理基础。

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    2018-01-14 kingjiang

    数据分析还是挺有意思的

    0

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    2018-01-12 有备才能无患

    侵入性筛状和导管内恶性上皮肿瘤(CR/IDC)与前列腺病人副作用结果有关

    0

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