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Observation of the Effects of Different Enzyme Digestion Time and Enzyme Digestion Methods on the Extraction of Primary Renal Tubular Epithelial Cells from Sprague-Dawley Suckling Mice.
Biochemical Genetics 2024 March 14
Renal tubular epithelial cells are one of the essential functional cells in the kidney. Optimizing the isolation and culture method of primary renal tubular epithelial cells from SD mammary rats provides better experimental materials for renal tubule-related studies, which is essential for studying the pathogenesis of renal diseases, especially diabetic nephropathy and drug screening. SD rat renal tubular epithelial cells were isolated and purified by 2.5-mg/ml collagenase II or 2 mg/ml trypsin + 2.5 mg/ml collagenase II enzymatic digestion. The isolation and purification were observed at different time points (15 min, 30 min, 45 min, and 60 min) to determine the optimal extraction time for the enzymatic digestion method. After comparing the two enzymatic methods, it was determined that the trypsin + collagenase II enzymatic method was more effective. The primary renal tubular epithelial cells extracted by the trypsin + collagenase II digestion method were identified by the marker Cytokeratin 18 of renal tubular epithelial cells at 45 min of digestion with high purity. We established a simple, efficient, and reproducible method for isolation and culture of renal tubular epithelial cells in SD mammary gland rats.
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