Related Experiment Videos
Expression of connexins in the normal and obstructed developing kidney
Douglas M Silverstein1, Barbara A Thornhill, Jocelyn C Leung
1Division of Nephrology, Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, Louisiana, USA. dsilve@lsuhsc.edu
Pediatric Nephrology (Berlin, Germany)
|March 20, 2003
Summary
This study reveals that multiple connexins are present in rat kidneys and their expression changes significantly in neonatal unilateral ureteral obstruction (UUO), impacting kidney development.
Area of Science:
- Cell biology
- Developmental biology
- Nephrology
Background:
- Cell-to-cell communication is mediated by connexins, which form gap junctions and are crucial for organ development.
- Connexins are a family of proteins essential for intercellular communication and tissue homeostasis.
Purpose of the Study:
- To investigate the expression of various connexins in the rat kidney during development and in response to unilateral ureteral obstruction (UUO).
- To identify specific connexin isoforms involved in renal development and their altered expression patterns in neonatal UUO.
Main Methods:
- Reverse transcription-polymerase chain reaction (RT-PCR) was used to detect and quantify connexin mRNA expression.
- Quantitative RT-PCR was employed to determine the relative abundance of connexin transcripts.
- Neonatal and adult rat models of unilateral ureteral obstruction (UUO) were utilized to study connexin responses.
Main Results:
- Multiple connexin genes (Cx30, Cx36, Cx37, Cx40, Cx45, Cx46, and Cx50) are expressed in the rat kidney.
- Connexins Cx37, Cx45, and Cx46 show preferential expression during early renal development.
- Neonatal UUO leads to significant upregulation of Cx30, Cx37, and Cx40 mRNA levels, while adult UUO shows no change.
Conclusions:
- The rat kidney expresses a diverse array of connexins, highlighting their complex role in renal function.
- Connexin expression is dynamically regulated during kidney development and is significantly altered in neonatal UUO.
- Aberrant expression of specific connexins in neonatal UUO suggests their involvement in the pathophysiology of congenital kidney diseases.