Effects of adenosine stimulation on the mRNA expression of CLCNKB in the basolateral medullary thick ascending limb of the rat kidney
| Autor: | Ruimin Gu, Lili Fan, Hongyu Sui, Peng Wu, Haiyan Luan, Mingxiao Wang |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
0301 basic medicine
Cancer Research medicine.medical_specialty Adenosine Anion Transport Proteins Primary Cell Culture Nephron Arachidonic Acids Biochemistry Kidney Tubules Proximal 03 medical and health sciences Chloride Channels Internal medicine Genetics medicine Cyclic AMP Animals RNA Messenger Molecular Biology Ion transporter Kidney CLCNKB Arachidonic Acid biology Reabsorption Kinase Nephrons Isoquinolines Molecular biology Cyclic AMP-Dependent Protein Kinases Rats Phospholipases A2 030104 developmental biology medicine.anatomical_structure Endocrinology Oncology Gene Expression Regulation Chloride channel biology.protein Loop of Henle Molecular Medicine medicine.drug Signal Transduction |
| Zdroj: | Molecular medicine reports. 14(5) |
| ISSN: | 1791-3004 |
| Popis: | Adenosine is a molecule produced by several organs within the body, including the kidneys, where it acts as an autoregulatory factor. It mediates ion transport in several nephron segments, including the proximal tubule and the thick ascending limb (TAL). Ion transport is dictated in part by anionic chloride channels, which regulate crucial kidney functions, including the reabsorption of Na+ and Cl‑, urine concentration, and establishing and maintaining the corticomedullary osmotic gradient. The present study investigated the effects of adenosine on the mRNA expression of chloride voltage‑gated channel Kb (CLCNKB), a candidate gene involved in hypertension, which encodes for the ClC‑Kb channel. Medullary thick ascending limb (mTAL) tubules were isolated from the rat kidney, and primary cultures of mTAL cells from the mTAL tubules were established. The cells were treated with adenosine and the mRNA expression of CLCNKB was detected by reverse transcription‑quantitative polymerase chain reaction. The cells were also treated with pathways inhibitors (H8 and AACOCF3), and the protein expression of cyclic adenosine 3',5'‑monophosphate (cAMP)‑protein kinase A (PKA) and phospholipase A2 (PLA2) by were analyzed by western blotting. The findings indicated that adenosine increased the mRNA expression of CLCNKB in primary cultures of medullary TAL cells, and this stimulatory effect was regulated by the cAMP‑PKA and PLA2‑arachidonic acid (AA) pathways. The present study showed that adenosine affected the mRNA expression of CLCNKB, initially through the cAMP‑PKA pathway and then the PLA2‑AA pathway. |
| Databáze: | OpenAIRE |
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