Multiomics analyses reveal dynamic bioenergetic pathways and functional remodeling of the heart during intermittent fasting

© 2023, Arumugam, Alli-Shaik et al..

Intermittent fasting (IF) has been shown to reduce cardiovascular risk factors in both animals and humans, and can protect the heart against ischemic injury in models of myocardial infarction. However, the underlying molecular mechanisms behind these effects remain unclear. To shed light on the molecular and cellular adaptations of the heart to IF, we conducted comprehensive system-wide analyses of the proteome, phosphoproteome, and transcriptome, followed by functional analysis. Using advanced mass spectrometry, we profiled the proteome and phosphoproteome of heart tissues obtained from mice that were maintained on daily 12- or 16 hr fasting, every-other-day fasting, or ad libitum control feeding regimens for 6 months. We also performed RNA sequencing to evaluate whether the observed molecular responses to IF occur at the transcriptional or post-transcriptional levels. Our analyses revealed that IF significantly affected pathways that regulate cyclic GMP signaling, lipid and amino acid metabolism, cell adhesion, cell death, and inflammation. Furthermore, we found that the impact of IF on different metabolic processes varied depending on the length of the fasting regimen. Short IF regimens showed a higher correlation of pathway alteration, while longer IF regimens had an inverse correlation of metabolic processes such as fatty acid oxidation and immune processes. Additionally, functional echocardiographic analyses demonstrated that IF enhances stress-induced cardiac performance. Our systematic multi-omics study provides a molecular framework for understanding how IF impacts the heart's function and its vulnerability to injury and disease.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:12

Enthalten in:

eLife - 12(2023) vom: 28. Sept.

Sprache:

Englisch

Beteiligte Personen:

Arumugam, Thiruma V [VerfasserIn]
Alli-Shaik, Asfa [VerfasserIn]
Liehn, Elisa A [VerfasserIn]
Selvaraji, Sharmelee [VerfasserIn]
Poh, Luting [VerfasserIn]
Rajeev, Vismitha [VerfasserIn]
Cho, Yoonsuk [VerfasserIn]
Cho, Yongeun [VerfasserIn]
Kim, Jongho [VerfasserIn]
Kim, Joonki [VerfasserIn]
Swa, Hannah L F [VerfasserIn]
Hao, David Tan Zhi [VerfasserIn]
Rattanasopa, Chutima [VerfasserIn]
Fann, David Yang-Wei [VerfasserIn]
Mayan, David Castano [VerfasserIn]
Ng, Gavin Yong-Quan [VerfasserIn]
Baik, Sang-Ha [VerfasserIn]
Mallilankaraman, Karthik [VerfasserIn]
Gelderblom, Mathias [VerfasserIn]
Drummond, Grant R [VerfasserIn]
Sobey, Christopher G [VerfasserIn]
Kennedy, Brian K [VerfasserIn]
Singaraja, Roshni R [VerfasserIn]
Mattson, Mark P [VerfasserIn]
Jo, Dong-Gyu [VerfasserIn]
Gunaratne, Jayantha [VerfasserIn]

Links:

Volltext

Themen:

Heart
Intermittent fasting
Journal Article
Medicine
Metabolism
Mouse
Phosphoproteomics
Proteome
Proteomics
RNA sequencing
Regenerative medicine
Research Support, Non-U.S. Gov't
Stem cells

Anmerkungen:

Date Completed 02.10.2023

Date Revised 03.10.2023

published: Electronic

Citation Status MEDLINE

doi:

10.7554/eLife.89214

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM362653755