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Published on: September 1, 2015
Epidermal growth factors in the kidney and relationship to hypertension
Alexander Staruschenko1, Oleg Palygin, Daria V Ilatovskaya
1Department of Physiology, Medical College of Wisconsin, 8701 Watertown Plank Rd., Milwaukee, WI 53226, USA. staruschenko@mcw.edu
Abstract:
Members of the epidermal growth factor (EGF)-family bind to ErbB (EGFR)-family receptors that play an important role in the regulation of various fundamental cell processes in many organs including the kidney. In this field, most of the research efforts are focused on the role of EGF-ErbB axis in cancer biology. However, many studies indicate that abnormal ErbB-mediated signaling pathways are critical in the development of renal and cardiovascular pathologies. The kidney is a major site of the EGF-family ligands synthesis, and it has been shown to express all four members of the ErbB receptor family. The study of kidney disease regulation by ErbB receptor ligands has expanded considerably in recent years. In vitro and in vivo studies have provided direct evidence of the role of ErbB signaling in the kidney. Recent advances in the understanding of how the proteins in the EGF-family regulate sodium transport and development of hypertension are specifically discussed here. Collectively, these results suggest that EGF-ErbB signaling pathways could be major determinants in the progress of renal lesions, including its effects on the regulation of sodium reabsorption in collecting ducts.
Insights
Epidermal growth factor (EGF) signaling through ErbB receptors is crucial for kidney function. Dysregulation of this pathway contributes to kidney disease by affecting sodium transport and hypertension.
Area of Science:
- Nephrology
- Molecular Biology
- Cardiovascular Research
Background:
- Epidermal growth factor (EGF)-family ligands bind ErbB receptors, regulating fundamental cell processes.
- While EGF-ErbB axis research often focuses on cancer, abnormal ErbB signaling is implicated in renal and cardiovascular diseases.
- The kidney synthesizes EGF-family ligands and expresses all four ErbB receptors, highlighting its significance in this signaling pathway.
Purpose of the Study:
- To review recent advances in understanding the role of EGF-ErbB signaling in kidney function and disease.
- To discuss the impact of EGF-family proteins on sodium transport and hypertension development.
- To explore the contribution of EGF-ErbB pathways to renal lesion progression.
Main Methods:
- Literature review of in vitro and in vivo studies on ErbB signaling in the kidney.
- Analysis of research on EGF-family ligands and ErbB receptors in renal pathologies.
- Focus on recent findings regarding sodium transport regulation and hypertension.
Main Results:
- ErbB signaling plays a critical role in kidney function and disease development.
- EGF-family proteins influence sodium reabsorption in kidney collecting ducts.
- Aberrant ErbB signaling contributes to the pathogenesis of renal and cardiovascular diseases.
Conclusions:
- EGF-ErbB signaling pathways are key regulators of kidney function and disease progression.
- Understanding these pathways offers insights into managing renal lesions and hypertension.
- Targeting EGF-ErbB signaling may present therapeutic opportunities for kidney diseases.
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