Summary of Study ST002324

This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench, https://www.metabolomicsworkbench.org, where it has been assigned Project ID PR001490. The data can be accessed directly via it's Project DOI: 10.21228/M84D89 This work is supported by NIH grant, U2C- DK119886.

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This study contains a large results data set and is not available in the mwTab file. It is only available for download via FTP as data file(s) here.

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Study IDST002324
Study TitleExploration of age-dependent changes of phospholipid profiles in C. elegans depleted of tif-IA and ncl-1
Study SummaryAnalysis of phosphatidylcholines, phosphatidylethanolamines, phosphatidylinositols, phosphatidylserines and phosphatidylglycerols in young (d2), middle age (d6) and old age (d12) C. elegans as well as animals with tif-IA or ncl-1 knockdown.
Institute
University of Innsbruck
DepartmentMichael Popp Institute
Last NameKoeberle
First NameAndreas
AddressMitterweg 24, Innsbruck, Tyrol, 6020, Austria
Emailandreas.koeberle@uibk.ac.at
Phone+43 512 507 57903
Submit Date2022-10-12
Raw Data AvailableYes
Raw Data File Type(s)wiff
Analysis Type DetailLC-MS
Release Date2022-11-18
Release Version1
Andreas Koeberle Andreas Koeberle
https://dx.doi.org/10.21228/M84D89
ftp://www.metabolomicsworkbench.org/Studies/ application/zip

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Project:

Project ID:PR001490
Project DOI:doi: 10.21228/M84D89
Project Title:Reducing the metabolic burden of rRNA synthesis promotes healthy longevity
Project Summary:Ribosome biogenesis is an anabolic process driven by RNA polymerase I (Pol I)-mediated synthesis of pre-ribosomal RNA (pre-rRNA). While Pol I activity was previously linked to longevity, the underlying mechanisms were not studied beyond effects on protein translation and downstream proteostasis. Here we used multi-omics and functional tests to show that curtailment of Pol I activity preserves mitochondrial function and lowers ATP expenditure, thereby promoting longevity in Caenorhabditis elegans. Reduced pre-rRNA synthesis also improved longevity and energy homeostasis in Drosophila melanogaster and human cells, respectively. Conversely, the enhancement of pre-rRNA synthesis boosted growth and neuromuscular performance of young nematodes at the cost of accelerated metabolic decline, mitochondrial stress and premature aging. Moreover, restriction of Pol I activity extended lifespan more potently than translational repression, and retained its geroprotective effects when initiated late in life, showcasing moderation of Pol I activity as an effective longevity treatment not limited by aging.
Institute:University of Innsbruck
Department:Michael Popp Institute
Last Name:Koeberle
First Name:Andreas
Address:Mitterweg 24, Innsbruck, Tyrol, 6020, Austria
Email:andreas.koeberle@uibk.ac.at
Phone:+43 512 507 57903
Funding Source:Leibniz Association, Thüringer Aufbaubank (2019 FGR 0082), Free State of Thuringia (RegenerAging—FSU-I-03/14), Carl-Zeiss-Stiftung (IMPULS), Phospholipid Research Center (AKO-2019-070/2-1)
Contributors:Samim Sharifi, Finja Witt, André Gollowitzer, Oliver Werz, Holger Bierhoff, Maria Ermolaeva
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