Pathological Consequences of Hepatic mTORC1 Dysregulation

The mammalian target of rapamycin complex 1 (mTORC1) is a central regulator of metabolism that integrates environmental inputs, including nutrients, growth factors, and stress signals. mTORC1 activation upregulates anabolism of diverse macromolecules, such as proteins, lipids, and nucleic acids, whi...

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Main Authors: Chun-Seok Cho, Allison Ho Kowalsky, Jun Hee Lee
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Genes
Subjects:
Online Access:https://www.mdpi.com/2073-4425/11/8/896
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author Chun-Seok Cho
Allison Ho Kowalsky
Jun Hee Lee
author_facet Chun-Seok Cho
Allison Ho Kowalsky
Jun Hee Lee
author_sort Chun-Seok Cho
collection DOAJ
description The mammalian target of rapamycin complex 1 (mTORC1) is a central regulator of metabolism that integrates environmental inputs, including nutrients, growth factors, and stress signals. mTORC1 activation upregulates anabolism of diverse macromolecules, such as proteins, lipids, and nucleic acids, while downregulating autolysosomal catabolism. mTORC1 dysregulation is often found in various diseases, including cancer, cardiovascular and neurodegenerative diseases, as well as metabolic syndromes involving obesity and type II diabetes. As an essential metabolic organ, the liver requires proper regulation of mTORC1 for maintaining homeostasis and preventing pathologies. For instance, aberrant hyper- or hypoactivation of mTORC1 disrupts hepatocellular homeostasis and damages the structural and functional integrity of the tissue, leading to prominent liver injury and the development of hepatocellular carcinogenesis. Proper regulation of mTORC1 during liver diseases may be beneficial for restoring liver function and ameliorating the detrimental consequences of liver failure.
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spelling doaj.art-b9d8e521e9314d55a93239550729f0ec2023-11-20T09:10:36ZengMDPI AGGenes2073-44252020-08-0111889610.3390/genes11080896Pathological Consequences of Hepatic mTORC1 DysregulationChun-Seok Cho0Allison Ho Kowalsky1Jun Hee Lee2Department of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, MI 48109, USADepartment of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, MI 48109, USADepartment of Molecular & Integrative Physiology, University of Michigan, Ann Arbor, MI 48109, USAThe mammalian target of rapamycin complex 1 (mTORC1) is a central regulator of metabolism that integrates environmental inputs, including nutrients, growth factors, and stress signals. mTORC1 activation upregulates anabolism of diverse macromolecules, such as proteins, lipids, and nucleic acids, while downregulating autolysosomal catabolism. mTORC1 dysregulation is often found in various diseases, including cancer, cardiovascular and neurodegenerative diseases, as well as metabolic syndromes involving obesity and type II diabetes. As an essential metabolic organ, the liver requires proper regulation of mTORC1 for maintaining homeostasis and preventing pathologies. For instance, aberrant hyper- or hypoactivation of mTORC1 disrupts hepatocellular homeostasis and damages the structural and functional integrity of the tissue, leading to prominent liver injury and the development of hepatocellular carcinogenesis. Proper regulation of mTORC1 during liver diseases may be beneficial for restoring liver function and ameliorating the detrimental consequences of liver failure.https://www.mdpi.com/2073-4425/11/8/896mTORC1livermetabolism
spellingShingle Chun-Seok Cho
Allison Ho Kowalsky
Jun Hee Lee
Pathological Consequences of Hepatic mTORC1 Dysregulation
Genes
mTORC1
liver
metabolism
title Pathological Consequences of Hepatic mTORC1 Dysregulation
title_full Pathological Consequences of Hepatic mTORC1 Dysregulation
title_fullStr Pathological Consequences of Hepatic mTORC1 Dysregulation
title_full_unstemmed Pathological Consequences of Hepatic mTORC1 Dysregulation
title_short Pathological Consequences of Hepatic mTORC1 Dysregulation
title_sort pathological consequences of hepatic mtorc1 dysregulation
topic mTORC1
liver
metabolism
url https://www.mdpi.com/2073-4425/11/8/896
work_keys_str_mv AT chunseokcho pathologicalconsequencesofhepaticmtorc1dysregulation
AT allisonhokowalsky pathologicalconsequencesofhepaticmtorc1dysregulation
AT junheelee pathologicalconsequencesofhepaticmtorc1dysregulation