The Antidiabetic Agent Sodium Tungstate Induces Abnormal Glycogen Accumulation in Renal Proximal Tubules from Diabetic IRS2-Knockout Mice
Joint Authors
Bertinat, Romina
Silva, Pamela
Gatica, Rodrigo
Oliveira, Joana Moitinho
Nualart, Francisco
Gomis, Ramón
Yáñez, Alejandro J.
Westermeier, Francisco
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-05-29
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The kidney is an insulin-sensitive organ involved in glucose homeostasis.
One major effect of insulin is to induce glycogen storage in the liver and muscle.
However, no significant glycogen stores are detected in normal kidneys, but diabetic subjects present a characteristic renal histopathological feature resulting from extensive glycogen deposition mostly in nonproximal tubules.
The mechanism of renal glycogen accumulation is yet poorly understood.
Here, we studied in situ glycogen accumulation in the kidney from diabetic IRS2-knockout mice and the effect of the insulin-mimetic agent sodium tungstate (NaW).
IRS2-knockout mice displayed hyperglycemia and hyperinsulinemia.
NaW only normalized glycemia.
There was no evident morphological difference between kidneys from untreated wild-type (WT), NaW-treated WT, and untreated IRS2-knockout mice.
However, NaW-treated IRS2-knockout mice showed tubular alterations resembling clear cells in the cortex, but not in the outer medulla, that were correlated with glycogen accumulation.
Immunohistochemical detection of the gluconeogenic enzyme phosphoenolpyruvate carboxykinase, mostly expressed by renal proximal tubules, showed that altered tubules were of proximal origin.
Our preliminary study suggests that IRS2 differentially regulates glycogen accumulation in renal tubules and that NaW treatment in the context of IRS2 ablation induces abnormal glycogen accumulation in cortical proximal tubules.
American Psychological Association (APA)
Bertinat, Romina& Westermeier, Francisco& Silva, Pamela& Gatica, Rodrigo& Oliveira, Joana Moitinho& Nualart, Francisco…[et al.]. 2018. The Antidiabetic Agent Sodium Tungstate Induces Abnormal Glycogen Accumulation in Renal Proximal Tubules from Diabetic IRS2-Knockout Mice. Journal of Diabetes Research،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1183696
Modern Language Association (MLA)
Bertinat, Romina…[et al.]. The Antidiabetic Agent Sodium Tungstate Induces Abnormal Glycogen Accumulation in Renal Proximal Tubules from Diabetic IRS2-Knockout Mice. Journal of Diabetes Research No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1183696
American Medical Association (AMA)
Bertinat, Romina& Westermeier, Francisco& Silva, Pamela& Gatica, Rodrigo& Oliveira, Joana Moitinho& Nualart, Francisco…[et al.]. The Antidiabetic Agent Sodium Tungstate Induces Abnormal Glycogen Accumulation in Renal Proximal Tubules from Diabetic IRS2-Knockout Mice. Journal of Diabetes Research. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1183696
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1183696