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Related Experiment Videos

Ferritin immune complex deposits in the choroid plexus.

P Lampert, R Garrett, A Lampert

    Acta Neuropathologica
    |May 16, 1977
    PubMed
    Summary

    Mice developed kidney and choroid plexus immune complex deposits after ferritin injections. These findings suggest potential blood-spinal fluid barrier disruption in humans with similar immune deposits.

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    Area of Science:

    • Immunopathology
    • Nephrology
    • Neuroimmunology

    Background:

    • Immune complex deposition in the choroid plexus is observed in autoimmune diseases and viral infections.
    • The choroid plexus plays a crucial role in maintaining the blood-cerebrospinal fluid barrier.
    • Ferritin is an iron-storage protein that can elicit an immune response.

    Purpose of the Study:

    • To investigate the effects of repeated ferritin administration on the kidneys and choroid plexus in mice.
    • To characterize the nature and location of immune deposits formed in response to ferritin.
    • To explore the potential implications for the blood-spinal fluid barrier.

    Main Methods:

    • Mice were injected intraperitoneally with ferritin twice weekly for over 4 weeks.
    • Kidney and choroid plexus tissues were examined using immunofluorescence and electron microscopy.
    • Deposition of ferritin, immunoglobulin G (IgG), and third complement component (C3) was assessed.

    Main Results:

    • Proteinuria developed in mice, indicating kidney damage.
    • Ferritin-antiferritin antibody complexes were deposited in renal glomeruli.
    • Ferritin, IgG, and C3 deposits accumulated in the choroid plexus's perivascular, extracellular space.

    Conclusions:

    • Experimental ferritin administration in mice leads to immune complex glomerulonephritis and choroid plexus deposition.
    • These findings corroborate previous observations of immune complex deposition in the choroid plexus.
    • The study discusses the potential relevance of these findings to human choroid plexus deposits and blood-spinal fluid barrier integrity.

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