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Updated: Jun 7, 2025
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Analyses of Proteinuria, Renal Infiltration of Leukocytes, and Renal Deposition of Proteins in Lupus-prone MRL/lpr Mice
Published on: June 8, 2022
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Immune complex deposition promotes NK cell accumulation in the kidney
Abigail De la Cruz1,2, Marco Garcés1,3, Emiliano Larios1,3
1Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.
Plos One
|November 21, 2024
Summary
Immune complexes in lupus nephritis trigger inflammation. Natural killer (NK) cells accumulate in the kidneys, influencing T cells and worsening disease, but their depletion offers temporary relief.
Area of Science:
- Immunology
- Nephrology
- Rheumatology
Background:
- Immune complexes in systemic lupus erythematosus (SLE) kidneys trigger inflammation, potentially leading to glomerulonephritis and organ failure.
- Effector cells recognize these immune complexes via complement and Fcγ receptors.
- Previous studies documented the transcriptome of CD16-bearing NK cells in SLE kidneys.
Purpose of the Study:
- To investigate the role of Natural Killer (NK) cells in lupus nephritis.
- To determine if NK cells accumulate in the kidney during lupus nephritis.
- To understand how NK cells modulate local immune responses in the kidney.
Main Methods:
- Studied immune complex deposition in kidney vasculature.
- Analyzed NK cell accumulation in kidney tissue.
- Assessed the impact of NK cells on local T cell behavior.
- Utilized NK cell depletion models to evaluate disease amelioration.
Main Results:
- NK cells were found to accumulate in the kidney in response to immune complex deposition.
- NK cells were shown to modulate the behavior of local T cells.
- Depletion of NK cells resulted in transient amelioration of lupus nephritis symptoms.
Conclusions:
- NK cells play a significant role in the pathogenesis of lupus nephritis.
- NK cells may be a therapeutic target in lupus nephritis and other immune complex-mediated kidney diseases.
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