ROS networks: designs, aging, Parkinson's disease and precision therapies

Alexey N. Kolodkin*, Raju Prasad Sharma, Anna Maria Colangelo, Andrew Ignatenko, Francesca Martorana, Danyel Jennen, Jacco J. Bried, Nathan Brady, Matteo Barberis, Thierry D. G. A. Mondeel, Michele Papa, Vikas Kumar, Bernhard Peters, Alexander Skupin, Lilia Alberghina, Rudi Balling, Hans Westerhoff*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

How the network around ROS protects against oxidative stress and Parkinson's disease (PD), and how processes at the minutes timescale cause disease and aging after decades, remains enigmatic. Challenging whether the ROS network is as complex as it seems, we built a fairly comprehensive version thereof which we disentangled into a hierarchy of only five simpler subnetworks each delivering one type of robustness. The comprehensive dynamic model described in vitro data sets from two independent laboratories. Notwithstanding its five-fold robustness, it exhibited a relatively sudden breakdown, after some 80 years of virtually steady performance: it predicted aging. PD-related conditions such as lack of DJ-1 protein or increased alpha-synuclein accelerated the collapse, while antioxidants or caffeine retarded it. Introducing a new concept (aging-time-control coefficient), we found that as many as 25 out of 57 molecular processes controlled aging. We identified new targets for "life-extending interventions": mitochondrial synthesis, KEAP1 degradation, and p62 metabolism.

Original languageEnglish
Article number34
Number of pages20
JournalNPJ systems biology and applications
Volume6
Issue number1
DOIs
Publication statusPublished - 26 Oct 2020

Keywords

  • OXIDATIVE STRESS-RESPONSE
  • NF-KAPPA-B
  • MITOCHONDRIAL RESPIRATION
  • PINK1
  • PROTEIN
  • PHOSPHORYLATION
  • ACTIVATION
  • EXPRESSION
  • UBIQUITIN
  • PATHWAY

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