کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8290839 | 1536368 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Protein kinase C-mediated ATP stimulation of Na+-ATPase activity in LLC-PK1 cells involves a P2Y2 and/or P2Y4 receptor
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Protein kinase C-mediated ATP stimulation of Na+-ATPase activity in LLC-PK1 cells involves a P2Y2 and/or P2Y4 receptor Protein kinase C-mediated ATP stimulation of Na+-ATPase activity in LLC-PK1 cells involves a P2Y2 and/or P2Y4 receptor](/preview/png/8290839.png)
چکیده انگلیسی
ATP-activated P2Y receptors play an important role in renal sodium excretion. The aim of this study was to evaluate the modulation of ATPase-driven sodium reabsorption in the proximal tubule by ATP or adenosine (Ado). LLC-PK1 cells, a model of porcine proximal tubule cells, were used. ATP (10-6 M) or Ado (10-6 M) specifically stimulated Na+-ATPase activity without any changes in (Na+ + K+)-ATPase activity. Our results show that the Ado effect is mediated by its conversion to ATP. Furthermore, it was observed that the effect of ATP was mimicked by UTP, ATPγS and 2-thio-UTP, an agonist of P2Y2 and P2Y4 receptors. In addition, ATP-stimulated Na+-ATPase activity involves protein kinase C (PKC). Our results indicate that ATP-induced stimulation of proximal tubule Na+-ATPase activity is mediated by a PKC-dependent P2Y2 and/or P2Y4 pathway. These findings provide new perspectives on the role of the effect of P2Y-mediated extracellular ATP on renal sodium handling.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Archives of Biochemistry and Biophysics - Volume 535, Issue 2, 15 July 2013, Pages 136-142
Journal: Archives of Biochemistry and Biophysics - Volume 535, Issue 2, 15 July 2013, Pages 136-142
نویسندگان
M. Wengert, M.C. Ribeiro, T.P. Abreu, R. Coutinho-Silva, L.R. Leão-Ferreira, A.A.S. Pinheiro, C. Caruso-Neves,