Abstract
Dual Oxidases (DUOX) 1 and 2 are efficiently expressed in thyroid, gut, lung and immune system. The function and the regulation of these enzymes in mammals are still largely unknown. We report here that DUOX 1 and 2 are expressed in human neuroblastoma SK-N-BE cells as well as in a human oligodendrocyte cell line (MO3-13) and in rat brain and they are induced by platelet derived growth factor (PDGF). The levels of DUOX 1 and 2 proteins and mRNAs are induced by reactive oxygen species (ROS) produced by the membrane NADPH oxidase. As to the mechanism, we find that PDGF stimulates membrane NADPH oxidase to produce ROS, which stabilize DUOX1 and 2 mRNAs and increases the levels of the proteins. Silencing of gp91 phox (NOX2), or of the other membrane subunit of NADPH oxidase, p22 phox, blocks PDGF induction of DUOX1 and 2. These data unravel a novel mechanism of regulation of DUOX enzymes by ROS and identify a circuitry linking NADPH oxidase activity to DUOX1 and 2 levels in neuroblastoma cells.
| Original language | English |
|---|---|
| Article number | e34405 |
| Journal | PLoS One |
| Volume | 7 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Apr 16 2012 |
Fingerprint
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Biochemistry, Genetics and Molecular Biology(all)
- Medicine(all)
Cite this
Reactive oxygen species regulate the levels of dual oxidase (duox1-2) in human neuroblastoma cells. / Damiano, Simona; Fusco, Roberta; Morano, Annalisa; de Mizio, Mariarosaria; Paternò, Roberto; de Rosa, Antonella; Spinelli, Rosa; Amente, Stefano; Frunzio, Rodolfo; Mondola, Paolo; Miot, Francoise; Laccetti, Paolo; Santillo, Mariarosaria; Avvedimento, Enrico Vittorio.
In: PLoS One, Vol. 7, No. 4, e34405, 16.04.2012.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Reactive oxygen species regulate the levels of dual oxidase (duox1-2) in human neuroblastoma cells
AU - Damiano, Simona
AU - Fusco, Roberta
AU - Morano, Annalisa
AU - de Mizio, Mariarosaria
AU - Paternò, Roberto
AU - de Rosa, Antonella
AU - Spinelli, Rosa
AU - Amente, Stefano
AU - Frunzio, Rodolfo
AU - Mondola, Paolo
AU - Miot, Francoise
AU - Laccetti, Paolo
AU - Santillo, Mariarosaria
AU - Avvedimento, Enrico Vittorio
PY - 2012/4/16
Y1 - 2012/4/16
N2 - Dual Oxidases (DUOX) 1 and 2 are efficiently expressed in thyroid, gut, lung and immune system. The function and the regulation of these enzymes in mammals are still largely unknown. We report here that DUOX 1 and 2 are expressed in human neuroblastoma SK-N-BE cells as well as in a human oligodendrocyte cell line (MO3-13) and in rat brain and they are induced by platelet derived growth factor (PDGF). The levels of DUOX 1 and 2 proteins and mRNAs are induced by reactive oxygen species (ROS) produced by the membrane NADPH oxidase. As to the mechanism, we find that PDGF stimulates membrane NADPH oxidase to produce ROS, which stabilize DUOX1 and 2 mRNAs and increases the levels of the proteins. Silencing of gp91 phox (NOX2), or of the other membrane subunit of NADPH oxidase, p22 phox, blocks PDGF induction of DUOX1 and 2. These data unravel a novel mechanism of regulation of DUOX enzymes by ROS and identify a circuitry linking NADPH oxidase activity to DUOX1 and 2 levels in neuroblastoma cells.
AB - Dual Oxidases (DUOX) 1 and 2 are efficiently expressed in thyroid, gut, lung and immune system. The function and the regulation of these enzymes in mammals are still largely unknown. We report here that DUOX 1 and 2 are expressed in human neuroblastoma SK-N-BE cells as well as in a human oligodendrocyte cell line (MO3-13) and in rat brain and they are induced by platelet derived growth factor (PDGF). The levels of DUOX 1 and 2 proteins and mRNAs are induced by reactive oxygen species (ROS) produced by the membrane NADPH oxidase. As to the mechanism, we find that PDGF stimulates membrane NADPH oxidase to produce ROS, which stabilize DUOX1 and 2 mRNAs and increases the levels of the proteins. Silencing of gp91 phox (NOX2), or of the other membrane subunit of NADPH oxidase, p22 phox, blocks PDGF induction of DUOX1 and 2. These data unravel a novel mechanism of regulation of DUOX enzymes by ROS and identify a circuitry linking NADPH oxidase activity to DUOX1 and 2 levels in neuroblastoma cells.
UR - http://www.scopus.com/inward/record.url?scp=84859837004&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84859837004&partnerID=8YFLogxK
U2 - 10.1371/journal.pone.0034405
DO - 10.1371/journal.pone.0034405
M3 - Article
VL - 7
JO - PLoS One
JF - PLoS One
SN - 1932-6203
IS - 4
M1 - e34405
ER -