Genetic variation in the upstream region of ERG and prostate cancer.

Genetic variation in the upstream region of ERG and prostate cancer.
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DOI:
10.1007/s10552-009-9305-3
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发表时间:
2009-09
影响因子:
2.3
通讯作者:
Wiklund, Fredrik
Wiklund, Fredrik
中科院分区:
医学4区
文献类型:
--
作者:
Lindstrom, Sara;Adami, Hans-Olov;Balter, Katarina;Xu, Jianfeng;Zheng, S. Lilly;Sun, Jielin;Stattin, Par;Gronberg, Henrik;Wiklund, Fredrik

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相当一部分前列腺癌存在雄激素调节的 TMPRSS2 和 ERG 之间的基因融合,ERG 是前列腺癌中最常过度表达的原癌基因之一。在这里,我们研究了 ERG 上游的遗传性遗传变异是否会改变前列腺癌风险和生存率。我们对来自瑞典一项基于人群的病例对照研究 (CAPS) 的 2,760 例前列腺癌病例和 1,647 例对照组的 21 个单倍型标记 SNP (htSNP) 进行了基因分型,这些单倍型标记 SNP 覆盖 123 kb 的 5'UTR DNA,包括 ERG 的外显子 3。测试了个体 SNP 和单倍型与前列腺癌风险和生存的关联。一种单倍型“CTCGTATG”位于 ERG 上游 100 kb,与致死性前列腺癌相关(HR,1.36;95% CI,1.2–1.9,p = 0.006)。 rs2836626 变异“T”等位基因的携带者被诊断为较高的 TNM 分期 (p = 0.009),并且前列腺癌特异性死亡的风险增加 (HR = 1.3; 95% CI, 1.1–1.7, p = 0.009)。然而,在调整多次测试后,这种关联并没有保持统计显着性。我们发现 ERG 变异与前列腺癌风险之间总体上没有关联。 ERG 上游的遗传变异可能会改变前列腺癌分期并最终改变前列腺癌特异性死亡,但它不太可能在前列腺癌的发展中发挥作用。
A considerable fraction of prostate cancers harbor a gene fusion between the androgen-regulated TMPRSS2 and ERG, one of the most frequently over-expressed proto-oncogenes in prostate cancer. Here, we investigated if inherited genetic variation upstream of ERG alters prostate cancer risk and survival. We genotyped 21 haplotype tagging SNPs (htSNPs) covering 123 kb of 5′UTR DNA including exon 3 of ERG in 2,760 incident prostate cancer cases and 1,647 controls from a population-based Swedish case–control study (CAPS). Individual SNPs and haplotypes were tested for association with prostate cancer risk and survival. One haplotype—′CTCGTATG′ located 100 kb upstream of ERG—was associated with lethal prostate cancer (HR, 1.36; 95% CI, 1.2–1.9, p = 0.006). Carriers of the variant ‘T’ allele of rs2836626 were diagnosed with higher TNM-stage (p = 0.009) and had an increased risk of prostate cancer-specific death (HR = 1.3; 95% CI, 1.1–1.7, p = 0.009). However, this association did not remain statistically significant after adjusting for multiple testing. We found overall no association between ERG variation and prostate cancer risk. Genetic variation upstream of ERG may alter prostate cancer stage and ultimately prostate cancer-specific death but it is unlikely that it plays a role in prostate cancer development.
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