Kinetic proteomics identifies targeted changes in liver metabolism and the ribo-interactome by dietary sulfur amino acid restriction

Fuente: Zenodo
Guardado en:
Detalles Bibliográficos
Autores principales: Jonsson, William, Borowik, Agnieszka, Pranay, Atul, Kinter, Michael, Mirek, Emily, Levy, Jordan, Snyder, Elizabeth, Miller, Benjamin, Anthony, Tracy
Formato: Recurso digital
Lenguaje:inglés
Publicado: Zenodo 2022
Materias:
Acceso en línea:
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
_version_ 1866901305490931712
author Jonsson, William
Borowik, Agnieszka
Pranay, Atul
Kinter, Michael
Mirek, Emily
Levy, Jordan
Snyder, Elizabeth
Miller, Benjamin
Anthony, Tracy
author_facet Jonsson, William
Borowik, Agnieszka
Pranay, Atul
Kinter, Michael
Mirek, Emily
Levy, Jordan
Snyder, Elizabeth
Miller, Benjamin
Anthony, Tracy
contents <p>Dietary sulfur amino acid (SAA) restriction (SAAR) protects against diet-induced obesity, extends healthspan and coincides with an overall reduction in hepatic protein synthesis. To explore the underpinnings of SAAR-induced slowed growth and its benefits on proteostasis control, we resolved changes in hepatic mRNA and protein abundances and compared synthesis rates of 820 individual liver proteins. To achieve this, adult male mice were provided deuterium-labeled drinking water while freely consuming either a regular-fat or high fat diet that was restricted in SAA. Livers from these mice and their respective dietary controls were used to conduct transcriptomic, proteomic, and kinetic proteomic analyses. We found that remodeling of the transcriptome by SAAR was largely agnostic to dietary fat content. Shared signatures included activation of the integrated stress response alongside alterations in metabolic processes impacting lipids, fatty acids, and amino acids. Changes to the proteome correlated poorly with the transcriptome and yet, functional clustering of kinetic proteomic changes in liver during SAAR revealed that management of fatty acids and amino acids were altered to support central metabolism and redox balance. Dietary SAAR also strongly influenced the synthesis rates of ribosomal proteins and ribosome-interacting proteins regardless of dietary fat. Taken together, dietary SAAR alters the transcriptome and kinetic proteome in liver to safely manage increased fatty acid flux and energy use, and couples this with targeted changes in the ribo-interactome to support proteostasis and slowed growth.</p>
format Recurso digital
id zenodo_https___doi_org_10_5281_zenodo_7215980
institution Zenodo
language eng
publishDate 2022
publisher Zenodo
record_format zenodo
spellingShingle Kinetic proteomics identifies targeted changes in liver metabolism and the ribo-interactome by dietary sulfur amino acid restriction
Jonsson, William
Borowik, Agnieszka
Pranay, Atul
Kinter, Michael
Mirek, Emily
Levy, Jordan
Snyder, Elizabeth
Miller, Benjamin
Anthony, Tracy
healthspan
protein synthesis
transcripomics
high-fat diet
mice
proteomics
<p>Dietary sulfur amino acid (SAA) restriction (SAAR) protects against diet-induced obesity, extends healthspan and coincides with an overall reduction in hepatic protein synthesis. To explore the underpinnings of SAAR-induced slowed growth and its benefits on proteostasis control, we resolved changes in hepatic mRNA and protein abundances and compared synthesis rates of 820 individual liver proteins. To achieve this, adult male mice were provided deuterium-labeled drinking water while freely consuming either a regular-fat or high fat diet that was restricted in SAA. Livers from these mice and their respective dietary controls were used to conduct transcriptomic, proteomic, and kinetic proteomic analyses. We found that remodeling of the transcriptome by SAAR was largely agnostic to dietary fat content. Shared signatures included activation of the integrated stress response alongside alterations in metabolic processes impacting lipids, fatty acids, and amino acids. Changes to the proteome correlated poorly with the transcriptome and yet, functional clustering of kinetic proteomic changes in liver during SAAR revealed that management of fatty acids and amino acids were altered to support central metabolism and redox balance. Dietary SAAR also strongly influenced the synthesis rates of ribosomal proteins and ribosome-interacting proteins regardless of dietary fat. Taken together, dietary SAAR alters the transcriptome and kinetic proteome in liver to safely manage increased fatty acid flux and energy use, and couples this with targeted changes in the ribo-interactome to support proteostasis and slowed growth.</p>
title Kinetic proteomics identifies targeted changes in liver metabolism and the ribo-interactome by dietary sulfur amino acid restriction
topic healthspan
protein synthesis
transcripomics
high-fat diet
mice
proteomics
url https://doi.org/10.5281/zenodo.7215980