Dominguez-Sola David, Gautier Jean
Institute for Cancer Genetics, Columbia University, New York, New York 10032.
Institute for Cancer Genetics, Columbia University, New York, New York 10032 Department of Genetics and Development, Columbia University, New York, New York 10032.
Cold Spring Harb Perspect Med. 2014 Jun 2;4(6):a014423. doi: 10.1101/cshperspect.a014423.
The MYC oncogene is a multifunctional protein that is aberrantly expressed in a significant fraction of tumors from diverse tissue origins. Because of its multifunctional nature, it has been difficult to delineate the exact contributions of MYC's diverse roles to tumorigenesis. Here, we review the normal role of MYC in regulating DNA replication as well as its ability to generate DNA replication stress when overexpressed. Finally, we discuss the possible mechanisms by which replication stress induced by aberrant MYC expression could contribute to genomic instability and cancer.
MYC癌基因是一种多功能蛋白,在来自不同组织起源的很大一部分肿瘤中异常表达。由于其多功能性质,很难确定MYC的多种作用对肿瘤发生的确切贡献。在这里,我们综述了MYC在调节DNA复制中的正常作用,以及其过表达时产生DNA复制应激的能力。最后,我们讨论了异常MYC表达诱导的复制应激可能导致基因组不稳定和癌症的潜在机制。