PMID- 29730477 OWN - NLM STAT- MEDLINE DCOM- 20181126 LR - 20181126 IS - 1476-5586 (Electronic) IS - 1522-8002 (Print) IS - 1476-5586 (Linking) VI - 20 IP - 6 DP - 2018 Jun TI - eIF4E Phosphorylation in Prostate Cancer. PG - 563-573 LID - S1476-5586(18)30001-0 [pii] LID - 10.1016/j.neo.2018.04.003 [doi] AB - Prostate cancer (PCa) progression involves a shift from endocrine to paracrine and eventually autocrine control resulting from alterations in molecular mechanisms in the cells. Deregulation of RNA translation is crucial for tumor cells to grow and proliferate; therefore, overactivation of the translation machinery is often observed in cancer. The two most important signal transduction pathways regulating PCa progression are PI3K/Akt/mTOR and Ras/MAPK. These two pathways converge on the eukaryotic translation initiation factor 4E (eIF4E) which binds to the protein scaffold eIF4G upon mechanistic target of rapamycin (mTOR) activation and is phosphorylated by the mitogen-activated protein kinase (MAPK) interacting protein kinases (Mnk1/2). This review describes the role of eIF4E in mRNA translation initiation mediated by its binding to the methylated 5' terminal structure (m7G-cap) of many mRNAs, and the ability of many tumor cells to bypass this mechanism. Hormonal therapy and chemotherapy are two of the most prevalent therapies used in patients with advanced PCa, and studies have implicated a role for eIF4E phosphorylation in promoting resistance to both these therapies. It appears that eIF4E phosphorylation enhances the rate of translation of oncogene mRNAs to increase tumorigenicity. CI - Published by Elsevier Inc. FAU - D'Abronzo, Leandro S AU - D'Abronzo LS AD - VA Northern California Health Care System, Mather, CA; Department of Urological Surgery, University of California at Davis, Sacramento, CA. FAU - Ghosh, Paramita M AU - Ghosh PM AD - VA Northern California Health Care System, Mather, CA; Department of Urological Surgery, University of California at Davis, Sacramento, CA; Department of Biochemistry and Molecular Medicine, University of California at Davis, Sacramento, CA. Electronic address: paghosh@ucdavis.edu. LA - eng GR - I01 BX000400/BX/BLRD VA/United States GR - R01 CA133209/CA/NCI NIH HHS/United States GR - R01 CA185509/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20180504 PL - United States TA - Neoplasia JT - Neoplasia (New York, N.Y.) JID - 100886622 RN - 0 (Eukaryotic Initiation Factor-4E) RN - 0 (RNA, Messenger) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinases) SB - IM MH - Eukaryotic Initiation Factor-4E/*genetics MH - Humans MH - Male MH - Mitogen-Activated Protein Kinases/genetics MH - Phosphorylation/*genetics MH - Prostatic Neoplasms/*genetics MH - RNA, Messenger/genetics MH - Signal Transduction/genetics PMC - PMC5994774 EDAT- 2018/05/08 06:00 MHDA- 2018/11/27 06:00 PMCR- 2018/05/04 CRDT- 2018/05/07 06:00 PHST- 2018/01/18 00:00 [received] PHST- 2018/04/09 00:00 [revised] PHST- 2018/04/10 00:00 [accepted] PHST- 2018/05/08 06:00 [pubmed] PHST- 2018/11/27 06:00 [medline] PHST- 2018/05/07 06:00 [entrez] PHST- 2018/05/04 00:00 [pmc-release] AID - S1476-5586(18)30001-0 [pii] AID - 10.1016/j.neo.2018.04.003 [doi] PST - ppublish SO - Neoplasia. 2018 Jun;20(6):563-573. doi: 10.1016/j.neo.2018.04.003. Epub 2018 May 4.