What have we learned on aging from omics studies?

Semin Cell Dev Biol. 2017 Oct:70:177-189. doi: 10.1016/j.semcdb.2017.06.012. Epub 2017 Jun 16.

Abstract

Aging is a complex process. Transcriptomic studies of the last decade have identified genes and pathways that are regulated during aging in multiple species and organs. Yet, since a manifold of pathways are regulated and the amplitude of regulation is often small, reproducibility across studies is moderate and disentangling cause-consequence relationships has proven challenging. Here, we review a number of consistent findings in the light of more recent, longitudinal studies and of studies combining transcriptomics and proteomics that identified deregulation of protein biosynthetic pathways as an early event and likely driver of aging.

Keywords: Aging; Data integration; Genomics; Killifish; Lysosome; Mitochondria; Nothobranchius furzeri; Pathways; Proteasome; Protein complex; Proteomics; Proteostasis; RNAseq; Ribosome; Stoichiometry; Transcriptomics.

Publication types

  • Review
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aging / genetics*
  • Amino Acids, Branched-Chain / metabolism
  • Animals
  • Collagen / genetics
  • Collagen / metabolism
  • Electron Transport Chain Complex Proteins / genetics*
  • Electron Transport Chain Complex Proteins / metabolism
  • Gene Expression Regulation
  • Humans
  • Lysosomes / metabolism
  • MicroRNAs / genetics
  • MicroRNAs / metabolism
  • Mitochondria / metabolism
  • Mitochondria / pathology
  • Mutation
  • Proteasome Endopeptidase Complex / metabolism
  • Protein Biosynthesis*
  • Proteolysis*
  • Proteomics / methods*
  • Transcriptome*

Substances

  • Amino Acids, Branched-Chain
  • Electron Transport Chain Complex Proteins
  • MicroRNAs
  • Collagen
  • Proteasome Endopeptidase Complex