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Alteration of Cx37, Cx40, Cx43, Cx45, Panx1, and Renin Expression Patterns in Postnatal Kidneys of Dab1-/- (yotari) Mice
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Alteration of Cx37, Cx40, Cx43, Cx45, Panx1, and Renin Expression Patterns in Postnatal Kidneys of Dab1-/- (yotari) Mice
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Alteration of Cx37, Cx40, Cx43, Cx45, Panx1, and Renin Expression Patterns in Postnatal Kidneys of Dab1-/- (yotari) Mice
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Journal Article
Alteration of Cx37, Cx40, Cx43, Cx45, Panx1, and Renin Expression Patterns in Postnatal Kidneys of Dab1-/- (yotari) Mice
2021
Overview
Numerous evidence corroborates roles of gap junctions/hemichannels in proper kidney development. We analyzed how Dab1 gene functional silencing influences expression and localization of Cx37, Cx40, Cx43, Cx45, Panx1 and renin in postnatal kidneys of yotari mice, by using immunohistochemistry and electron microscopy. Dab1 Δ102/221 might lead to the activation of c-Src tyrosine kinase, causing the upregulation of Cx43 in the medulla of yotari mice. The expression of renin was more prominent in yotari mice (p < 0.001). Renin granules were unusually present inside the vascular walls of glomeruli capillaries, in proximal and distal convoluted tubules and in the medulla. Disfunction of Cx40 is likely responsible for increased atypically positioned renin cells which release renin in an uncontrolled fashion, but this doesn’t rule out simultaneous involvement of other Cxs, such as Cx45 which was significantly increased in the yotari cortex. The decreased Cx37 expression in yotari medulla might contribute to hypertension reduction provoked by high renin expression. These findings imply the relevance of Cxs/Panx1 as markers of impaired kidney function (high renin) in yotari mice and that they have a role in the preservation of intercellular signaling and implicate connexopathies as the cause of premature death of yotari mice.
Publisher
MDPI AG,MDPI
Subject
/ Cx37
/ Cx37 ; Cx40 ; Cx43 ; Cx45 ; Pnx1 ; renin ; yotari ; kidney
/ Cx40
/ Cx43
/ Cx45
/ Gap Junction alpha-4 Protein
/ Gap Junction alpha-5 Protein
/ Gene Expression Regulation, Developmental
/ kidney
/ Kidney Glomerulus - growth & development
/ Kidney Glomerulus - metabolism
/ Kidney Glomerulus - pathology
/ Kidney Medulla - growth & development
/ Kidney Tubules - growth & development
/ Mice
/ Nerve Tissue Proteins - deficiency
/ Nerve Tissue Proteins - genetics
/ Nerve Tissue Proteins - metabolism
/ Pnx1
/ renin
/ yotari
