Primary Renal Segments
Primary Renal Segments - Related Videos
09:00
Microdissection of Primary Renal Tissue Segments and Incorporation with Novel Scaffold-free Construct Technology
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Cited by 1 •
2018
Tissue-engineered renal constructs provide a solution for the organ shortage and deleterious effects of dialysis. Here, we describe a protocol to micro dissect murine kidneys for isolation of cortico-medullary segments. These segments are implanted into scaffold-free cellular constructs, forming renal organoids.
06:32
Development of Human Renal Tubular Epithelial Cell Primary Cultures in Monolayers and Three-Dimensional Conditions
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2025
Here, we describe the protocols for obtaining primary cultures of human renal tubular epithelial cells (HRTEC) from the kidney cortex to develop monolayers and three-dimensional cultures on an extracellular matrix (3D-HRTEC).
03:21
Murine Renal Cell Isolation: A Technique to Isolate and Generate Primary Culture of Renal Tubular Epithelial Cells
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2023
In this video, we demonstrate the steps to isolate and purify renal tubular epithelial cells for a wide range of molecular biology and cell culture studies.
06:59
A Rat Orthotopic Renal Transplantation Model for Renal Allograft Rejection
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Cited by 2 •
2022
The rat orthotopic renal transplantation model contributes to investigating the mechanism of renal allograft rejection. The current model increases the recipients' survival without interference with blood supply and venous reflux of the lower body using an end-to-end anastomosis of kidney implantation and an end-to-side "tunnel" method of ureter-bladder anastomosis.
07:06
Isolation of Primary Human Proximal Tubule Epithelial Cells and Their Use in Creating a Microphysiological Model of the Renal Proximal Tubule
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Cited by 3 •
2025
We present an optimized protocol for processing whole human kidneys to isolate and culture primary renal proximal tubule epithelial cells and the application of these cells in a three-dimensional, microfluidic, microphysiological platform to recapitulate the renal proximal tubule.
FAQs
Each segment combines a characteristic epithelial cell type with specific transport proteins and permeability properties. These features determine whether a region favors active ion transport, selective exchange, or solute-driven water movement. Because the segments operate sequentially, their distinct behaviors progressively shape body fluid composition and influence the resulting urine.
Transport proteins establish which solutes an epithelial region can move, while permeability determines how readily water or other substances cross that region. Together, these properties create selective handling rather than uniform passage along the nephron. Their segment-specific distribution is therefore essential for reproducing renal regulation in experimental or engineered systems.
Sequential organization allows the output of one region to become the input for the next, creating coordinated filtration, reabsorption, and secretion. This arrangement lets different epithelial and transport properties act in combination instead of isolation. The resulting progression supports controlled changes in fluid composition and contributes to urine formation.
A useful model should preserve the functional differences between regions, including segment-specific structure, epithelial behavior, transport proteins, and permeability. Reproducing only a generic renal surface would miss the coordinated transport logic of the nephron. Models that capture these distinctions can more faithfully examine renal physiology and transport-related responses.
Kidney-on-a-chip designs can use the distinct structure and transport behavior of renal regions as separate engineering targets. Segment-specific features guide how the system represents epithelial function and solute handling. This organization enables investigators to study renal processes in a controlled model while retaining functional differences that are important for interpretation.
These models are useful when researchers need to examine renal physiology, drug-induced toxicity, or disease mechanisms in a system that reflects regional nephron behavior. Segment-specific transport and permeability provide functional readouts beyond general tissue appearance. The same design principles can also support investigation of potential regenerative therapies.
Biomimetic filtration platforms can use the differing permeability and transport properties of renal regions to model selective handling of solutes and water. Incorporating these functional distinctions makes filtration behavior more representative of nephron organization than a uniform barrier. Such platforms provide a bioengineering context for studying fluid regulation and urine-related processes.