期刊
CANCER RESEARCH
卷 66, 期 18, 页码 8994-9001出版社
AMER ASSOC CANCER RESEARCH
DOI: 10.1158/0008-5472.CAN-06-1999
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MCT-1 is an oncogene that was initially identified in a human T cell lymphoma and has been shown to induce cell proliferation as well as activate survival-related pathways. MCT-1 contains the PUA domain, a recently described RNA-binding domain that is found in several tRNA and rRNA modification enzymes. Here, we established that MCT-1 protein interacts with the cap complex through its PUA domain and recruits the density-regulated protein (DENR/DRP), containing the SU11 translation initiation domain. Through the use of microarray analysis on polysome-associated mRNAs, we showed that up-regulation of MCT-1 was able to modulate the translation profiles of BCL2L2, TFDP1, MRE11A, cyclin D1, and E2F1 mRNAs, despite equivalent levels of mRNAs in the cytoplasm. Our data establish a role for MCT-1 in translational regulation, and support a linkage between translational control and onco-genesis.
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