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Jørgen Frøkiær

Age-related changes in expression in renal AQPs in response to congenital, partial, unilateral ureteral obstruction in rats

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Age-related changes in expression in renal AQPs in response to congenital, partial, unilateral ureteral obstruction in rats. / Wang, Guixian; Yuan, Weitang; Kwon, Tae-Hwan; Li, Zhenzhen; Wen, Jianguo; Topcu, Sukru Oguzkan; Djurhuus, Jens Christian; Nielsen, Søren; Frøkiær, Jørgen.

In: Pediatric Nephrology, Vol. 27, No. 1, 2012, p. 83-94.

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Wang, Guixian ; Yuan, Weitang ; Kwon, Tae-Hwan ; Li, Zhenzhen ; Wen, Jianguo ; Topcu, Sukru Oguzkan ; Djurhuus, Jens Christian ; Nielsen, Søren ; Frøkiær, Jørgen. / Age-related changes in expression in renal AQPs in response to congenital, partial, unilateral ureteral obstruction in rats. In: Pediatric Nephrology. 2012 ; Vol. 27, No. 1. pp. 83-94.

Bibtex

@article{441753c5b7bd461790f3e1a1f4ce0bc2,
title = "Age-related changes in expression in renal AQPs in response to congenital, partial, unilateral ureteral obstruction in rats",
abstract = "Previously we demonstrated that neonatally induced partial unilateral ureteral obstruction (PUUO) in rats is associated with changes in the abundance of renal acid-base transporters that were paralleled by reduction in renal functions dependent on the severity and duration of obstruction. The aim of the present study was to identify whether changes in renal aquaporin abundance are age-dependent. Semiquantitative immunoblotting and immunohistochemistry were used to examine the changes in abundance of AQP1, AQP2, p-S256AQP2 (AQP2 phosphorylated at consensus site Ser(256)) and AQP3 in the kidneys of rats with neonatally induced PUUO within the first 48 h of life, and then monitored for 7 or 14 weeks. Protein abundance of AQP2 and AQP3 increased in both obstructed and non-obstructed kidneys 7 weeks after induction of neonatal PUUO (PUUO-7W). In contrast, AQP1 and AQP2 protein abundance in the obstructed kidney were reduced after 14 weeks of PUUO (PUUO-14W). Importantly, pS256-AQP2 protein abundance was reduced in obstructed kidneys of both PUUO-7W and PUUO-14W. Immunohistochemistry confirmed the persistent pS256-AQP2 downregulation in both PUUO-7W and PUUO-14W rats. The study shows that the protein abundance of AQP1, AQP2, and AQP3 in the obstructed kidney is increased in PUUO-7W, which may be a compensatory phenomenon and reduced in PUUO-14W rats suggesting a time-/age-dependent dysregulation in response to PUUO. pS256-AQP2 protein abundance is reduced consistent with obstruction-induced direct effects in the apical part of the collecting duct principal cells in response to PUUO.",
author = "Guixian Wang and Weitang Yuan and Tae-Hwan Kwon and Zhenzhen Li and Jianguo Wen and Topcu, {Sukru Oguzkan} and Djurhuus, {Jens Christian} and S{\o}ren Nielsen and J{\o}rgen Fr{\o}ki{\ae}r",
year = "2012",
doi = "10.1007/s00467-011-1878-x",
language = "English",
volume = "27",
pages = "83--94",
journal = "Pediatric Nephrology",
issn = "0931-041X",
publisher = "Springer",
number = "1",

}

RIS

TY - JOUR

T1 - Age-related changes in expression in renal AQPs in response to congenital, partial, unilateral ureteral obstruction in rats

AU - Wang, Guixian

AU - Yuan, Weitang

AU - Kwon, Tae-Hwan

AU - Li, Zhenzhen

AU - Wen, Jianguo

AU - Topcu, Sukru Oguzkan

AU - Djurhuus, Jens Christian

AU - Nielsen, Søren

AU - Frøkiær, Jørgen

PY - 2012

Y1 - 2012

N2 - Previously we demonstrated that neonatally induced partial unilateral ureteral obstruction (PUUO) in rats is associated with changes in the abundance of renal acid-base transporters that were paralleled by reduction in renal functions dependent on the severity and duration of obstruction. The aim of the present study was to identify whether changes in renal aquaporin abundance are age-dependent. Semiquantitative immunoblotting and immunohistochemistry were used to examine the changes in abundance of AQP1, AQP2, p-S256AQP2 (AQP2 phosphorylated at consensus site Ser(256)) and AQP3 in the kidneys of rats with neonatally induced PUUO within the first 48 h of life, and then monitored for 7 or 14 weeks. Protein abundance of AQP2 and AQP3 increased in both obstructed and non-obstructed kidneys 7 weeks after induction of neonatal PUUO (PUUO-7W). In contrast, AQP1 and AQP2 protein abundance in the obstructed kidney were reduced after 14 weeks of PUUO (PUUO-14W). Importantly, pS256-AQP2 protein abundance was reduced in obstructed kidneys of both PUUO-7W and PUUO-14W. Immunohistochemistry confirmed the persistent pS256-AQP2 downregulation in both PUUO-7W and PUUO-14W rats. The study shows that the protein abundance of AQP1, AQP2, and AQP3 in the obstructed kidney is increased in PUUO-7W, which may be a compensatory phenomenon and reduced in PUUO-14W rats suggesting a time-/age-dependent dysregulation in response to PUUO. pS256-AQP2 protein abundance is reduced consistent with obstruction-induced direct effects in the apical part of the collecting duct principal cells in response to PUUO.

AB - Previously we demonstrated that neonatally induced partial unilateral ureteral obstruction (PUUO) in rats is associated with changes in the abundance of renal acid-base transporters that were paralleled by reduction in renal functions dependent on the severity and duration of obstruction. The aim of the present study was to identify whether changes in renal aquaporin abundance are age-dependent. Semiquantitative immunoblotting and immunohistochemistry were used to examine the changes in abundance of AQP1, AQP2, p-S256AQP2 (AQP2 phosphorylated at consensus site Ser(256)) and AQP3 in the kidneys of rats with neonatally induced PUUO within the first 48 h of life, and then monitored for 7 or 14 weeks. Protein abundance of AQP2 and AQP3 increased in both obstructed and non-obstructed kidneys 7 weeks after induction of neonatal PUUO (PUUO-7W). In contrast, AQP1 and AQP2 protein abundance in the obstructed kidney were reduced after 14 weeks of PUUO (PUUO-14W). Importantly, pS256-AQP2 protein abundance was reduced in obstructed kidneys of both PUUO-7W and PUUO-14W. Immunohistochemistry confirmed the persistent pS256-AQP2 downregulation in both PUUO-7W and PUUO-14W rats. The study shows that the protein abundance of AQP1, AQP2, and AQP3 in the obstructed kidney is increased in PUUO-7W, which may be a compensatory phenomenon and reduced in PUUO-14W rats suggesting a time-/age-dependent dysregulation in response to PUUO. pS256-AQP2 protein abundance is reduced consistent with obstruction-induced direct effects in the apical part of the collecting duct principal cells in response to PUUO.

U2 - 10.1007/s00467-011-1878-x

DO - 10.1007/s00467-011-1878-x

M3 - Journal article

C2 - 22028046

VL - 27

SP - 83

EP - 94

JO - Pediatric Nephrology

JF - Pediatric Nephrology

SN - 0931-041X

IS - 1

ER -