Rapid Nongenomic Action of Aldosterone on Protein Expressions of Hsp90(α and β) and pc-Src in Rat Kidney
Joint Authors
Eiam-Ong, Somchai
Eiam-Ong, Somchit
Sinphitukkul, Kittisak
Manotham, Krissanapong
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-01-22
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Previous in vitro studies indicated that aldosterone nongenomically phosphorylates epidermal growth factor receptor (EGFR) through activation of upstream signals, heat shock protein 90β (Hsp90β), and cytosolic (c)-Src kinase.
We demonstrated that aldosterone rapidly elevates EGFR phosphorylation in rat kidney.
There are no in vivo data regarding renal Hsp90(α and β) and phosphorylated (p)c-Src protein expressions.
The present study further investigates the expressions of these proteins.
Male Wistar rats were intraperitoneally injected with normal saline solution or aldosterone (Aldo: 150 μg/kg BW).
After 30 minutes, abundances and localizations of these proteins were determined.
Aldosterone enhanced renal Hsp90β protein abundance (P<0.001), but Hsp90α and pc-Src protein levels remained unaltered.
Expression of Hsp90(α and β) was induced prominently in the proximal convoluted tubules (PCTs).
Activation of Hsp90α was observed in vascular and outer medulla regions, whereas Hsp90β was induced in the cortex.
Immunoreactivity of pc-Src was elevated in PCT with obvious staining at the luminal membrane.
This in vivo study is the first to demonstrate that aldosterone nongenomically elevates Hsp90(α and β) protein expressions in rat kidney.
Aldosterone had no effect on pc-Src protein levels but modulated localization.
These results indicate that aldosterone regulates upstream mediators of EGFR transactivation in vivo.
American Psychological Association (APA)
Eiam-Ong, Somchit& Sinphitukkul, Kittisak& Manotham, Krissanapong& Eiam-Ong, Somchai. 2013. Rapid Nongenomic Action of Aldosterone on Protein Expressions of Hsp90(α and β) and pc-Src in Rat Kidney. BioMed Research International،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1004062
Modern Language Association (MLA)
Eiam-Ong, Somchit…[et al.]. Rapid Nongenomic Action of Aldosterone on Protein Expressions of Hsp90(α and β) and pc-Src in Rat Kidney. BioMed Research International No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-1004062
American Medical Association (AMA)
Eiam-Ong, Somchit& Sinphitukkul, Kittisak& Manotham, Krissanapong& Eiam-Ong, Somchai. Rapid Nongenomic Action of Aldosterone on Protein Expressions of Hsp90(α and β) and pc-Src in Rat Kidney. BioMed Research International. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1004062
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1004062