mRNA-to-protein translation in hypoxia

Abstract Cells respond to hypoxia by shifting cellular processes from general housekeeping functions to activating specialized hypoxia-response pathways. Oxygen plays an important role in generating ATP to maintain a productive rate of protein synthesis in normoxia. In hypoxia, the rate of the canon...

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Main Authors: Nancy T. Chee, Ines Lohse, Shaun P. Brothers
Format: Article
Language:English
Published: BMC 2019-03-01
Series:Molecular Cancer
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12943-019-0968-4
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author Nancy T. Chee
Ines Lohse
Shaun P. Brothers
author_facet Nancy T. Chee
Ines Lohse
Shaun P. Brothers
author_sort Nancy T. Chee
collection DOAJ
description Abstract Cells respond to hypoxia by shifting cellular processes from general housekeeping functions to activating specialized hypoxia-response pathways. Oxygen plays an important role in generating ATP to maintain a productive rate of protein synthesis in normoxia. In hypoxia, the rate of the canonical protein synthesis pathway is significantly slowed and impaired due to limited ATP availability, necessitating an alternative mechanism to mediate protein synthesis and facilitate adaptation. Hypoxia adaptation is largely mediated by hypoxia-inducible factors (HIFs). While HIFs are well known for their transcriptional functions, they also play imperative roles in translation to mediate hypoxic protein synthesis. Such adaptations to hypoxia are often hyperactive in solid tumors, contributing to the expression of cancer hallmarks, including treatment resistance. The current literature on protein synthesis in hypoxia is reviewed here, inclusive of hypoxia-specific mRNA selection to translation termination. Current HIF targeting therapies are also discussed as are the opportunities involved with targeting hypoxia specific protein synthesis pathways.
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spelling doaj.art-b09c36362915423fa936bc15a22f29462022-12-21T21:03:53ZengBMCMolecular Cancer1476-45982019-03-0118111310.1186/s12943-019-0968-4mRNA-to-protein translation in hypoxiaNancy T. Chee0Ines Lohse1Shaun P. Brothers2Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of MedicineDepartment of Psychiatry and Behavioral Sciences, University of Miami Miller School of MedicineDepartment of Psychiatry and Behavioral Sciences, University of Miami Miller School of MedicineAbstract Cells respond to hypoxia by shifting cellular processes from general housekeeping functions to activating specialized hypoxia-response pathways. Oxygen plays an important role in generating ATP to maintain a productive rate of protein synthesis in normoxia. In hypoxia, the rate of the canonical protein synthesis pathway is significantly slowed and impaired due to limited ATP availability, necessitating an alternative mechanism to mediate protein synthesis and facilitate adaptation. Hypoxia adaptation is largely mediated by hypoxia-inducible factors (HIFs). While HIFs are well known for their transcriptional functions, they also play imperative roles in translation to mediate hypoxic protein synthesis. Such adaptations to hypoxia are often hyperactive in solid tumors, contributing to the expression of cancer hallmarks, including treatment resistance. The current literature on protein synthesis in hypoxia is reviewed here, inclusive of hypoxia-specific mRNA selection to translation termination. Current HIF targeting therapies are also discussed as are the opportunities involved with targeting hypoxia specific protein synthesis pathways.http://link.springer.com/article/10.1186/s12943-019-0968-4HypoxiamRNA-to-protein translationHIFHypoxia-inducible factorCancerHIF inhibitors
spellingShingle Nancy T. Chee
Ines Lohse
Shaun P. Brothers
mRNA-to-protein translation in hypoxia
Molecular Cancer
Hypoxia
mRNA-to-protein translation
HIF
Hypoxia-inducible factor
Cancer
HIF inhibitors
title mRNA-to-protein translation in hypoxia
title_full mRNA-to-protein translation in hypoxia
title_fullStr mRNA-to-protein translation in hypoxia
title_full_unstemmed mRNA-to-protein translation in hypoxia
title_short mRNA-to-protein translation in hypoxia
title_sort mrna to protein translation in hypoxia
topic Hypoxia
mRNA-to-protein translation
HIF
Hypoxia-inducible factor
Cancer
HIF inhibitors
url http://link.springer.com/article/10.1186/s12943-019-0968-4
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AT ineslohse mrnatoproteintranslationinhypoxia
AT shaunpbrothers mrnatoproteintranslationinhypoxia