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Microdissection of Primary Renal Tissue Segments and Incorporation with Novel Scaffold-free Construct Technology
Published on: March 27, 2018
CX3CR1+ interstitial dendritic cells form a contiguous network throughout the entire kidney
T J Soos1, T N Sims, L Barisoni
1Division of Nephrology, New York University School of Medicine, New York, New York 10016, USA. soost01@med.nyu.edu
Kidney International
|June 9, 2006
Summary
Kidney dendritic cells (DCs) form an extensive network, constantly surveying the renal tissue. These CX3CR1+ DCs are immature and phagocytic, indicating a lack of immune privilege in the kidney parenchyma.
Area of Science:
- Immunology
- Nephrology
- Cell Biology
Background:
- Dendritic cells (DCs) are crucial for immune responses in nonlymphoid organs.
- The precise distribution and characteristics of DCs within the kidney remain largely uncharacterized.
Purpose of the Study:
- To delineate the anatomical distribution and cellular phenotype of resident dendritic cells in the normal kidney.
- To understand the immune surveillance capabilities of kidney-resident DCs.
Main Methods:
- Utilized CX3CR1GFP/+ mice for visualizing dendritic cells.
- Employed laser-scanning confocal and intravital microscopy to study DC distribution and behavior.
- Performed flow cytometry to analyze the phenotype of renal dendritic cells.
Main Results:
- Identified an extensive, contiguous network of stellate-shaped CX3CR1+ DCs throughout the kidney's interstitial and mesangial spaces.
- Observed stationary interstitial DCs with probing dendrites, indicating active tissue surveillance.
- Characterized renal DCs as CD11c+, F4/80+, MHC class II high, FcR high, with immature costimulatory molecules and competent phagocytosis.
Conclusions:
- The normal kidney parenchyma is extensively patrolled by resident CX3CR1+ dendritic cells.
- These findings suggest limited immunological privilege within the kidney due to constant DC surveillance.
- Renal CX3CR1+ DCs represent a significant component of the kidney's mononuclear phagocyte system, poised to respond to environmental cues.
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