Modeling peroxidase-oxidase interactions

William M Schaffer, T. V. Bronnikova

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Reactive oxygen species (ROS) and peroxidase-oxidase (PO) reactions are Janus-faced contributors to cellular metabolism. At low concentrations, reactive oxygen species serve as signaling molecules; at high concentrations, as destroyers of proteins, lipids and DNA. Correspondingly, PO reactions are both sources and consumers of ROS. In the present paper, we study a well-tested model of the PO reaction based on horseradish peroxidase chemistry. Our principal predictions are these: 1. Under hypoxia, the PO reaction can emit pulses of hydrogen peroxide at apparently arbitrarily long intervals. 2. For a wide range of input rates, continuing infusions of ROS are transduced into bounded dynamics. 3. The response to ROS input is hysteretic. 4. With sufficient input, regulatory capacity is exceeded and hydrogen peroxide, but not superoxide, accumulates. These results are discussed with regard to the episodic nature of neuro developmental and neurodegenerative diseases that have been linked to oxidative stress and to downstream interactions that may result in positive feedback and pathology of increasing severity.

Original languageEnglish (US)
Title of host publicationASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, DSCC 2011
Pages537-544
Number of pages8
Volume2
DOIs
StatePublished - 2011
EventASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, DSCC 2011 - Arlington, VA, United States
Duration: Oct 31 2011Nov 2 2011

Other

OtherASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, DSCC 2011
CountryUnited States
CityArlington, VA
Period10/31/1111/2/11

Fingerprint

Peroxidase
Reactive Oxygen Species
Oxidoreductases
Oxygen
Hydrogen peroxide
Hydrogen Peroxide
Neurodegenerative diseases
Oxidative stress
Pathology
Horseradish Peroxidase
Metabolism
Superoxides
Lipids
DNA
Proteins
Feedback
Molecules

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Control and Systems Engineering

Cite this

Schaffer, W. M., & Bronnikova, T. V. (2011). Modeling peroxidase-oxidase interactions. In ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, DSCC 2011 (Vol. 2, pp. 537-544) https://doi.org/10.1115/DSCC2011-5946

Modeling peroxidase-oxidase interactions. / Schaffer, William M; Bronnikova, T. V.

ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, DSCC 2011. Vol. 2 2011. p. 537-544.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Schaffer, WM & Bronnikova, TV 2011, Modeling peroxidase-oxidase interactions. in ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, DSCC 2011. vol. 2, pp. 537-544, ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, DSCC 2011, Arlington, VA, United States, 10/31/11. https://doi.org/10.1115/DSCC2011-5946
Schaffer WM, Bronnikova TV. Modeling peroxidase-oxidase interactions. In ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, DSCC 2011. Vol. 2. 2011. p. 537-544 https://doi.org/10.1115/DSCC2011-5946
Schaffer, William M ; Bronnikova, T. V. / Modeling peroxidase-oxidase interactions. ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, DSCC 2011. Vol. 2 2011. pp. 537-544
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