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Updated: Sep 14, 2026

The bm12 Inducible Model of Systemic Lupus Erythematosus (SLE) in C57BL/6 Mice
Published on: November 1, 2015
Abstract:
Recent investigations in systemic lupus erythematosus (SLE) have disclosed the presence of paramyxo-virus-like nucleocapsids in the cytoplasm of renal endothelial cells of patients with this disease. Elaborate techniques have failed to demonstrate conclusively that these are indeed viruses. Concomitantly, there is increasing evidence that SLE patients have defective cell-mediated-immunity. A 3-year-old child with SLE exhibited clinical evidence of defective cellular immunity. At postmortem, paramyxoviruslike tubular structures were demonstrated in her kidneys. Additional findings included the presence of intracytoplasmic viral particles consistent morphologically with herpes simplex virus in neurons from the lateral geniculate body and numerous "nuclear bodies" in neurons and glial cells. A dysplastic thymus gland demonstrated virtual absence of lymphocytes and was devoid of Hassall corpuscles, unlike the thymus usually seen in SLE.
Insights
Systemic lupus erythematosus (SLE) may involve paramyxovirus-like structures and defective immunity. A child with SLE showed these findings, along with herpes simplex virus particles and thymic dysplasia, suggesting potential viral links in autoimmune disease.
Area of Science:
- Immunology
- Virology
- Pathology
Background:
- Systemic lupus erythematosus (SLE) investigations reveal paramyxovirus-like nucleocapsids in renal endothelial cells.
- SLE is associated with increasing evidence of defective cell-mediated immunity.
- Previous studies have faced challenges in definitively identifying these structures as viruses.
Purpose of the Study:
- To investigate the presence of viral-like structures and immune defects in a pediatric case of SLE.
- To correlate clinical findings of immune deficiency with postmortem pathological observations.
Main Methods:
- Clinical evaluation of a 3-year-old child with SLE and evidence of defective cellular immunity.
- Postmortem examination of renal, neural, and thymic tissues.
- Morphological analysis of intracytoplasmic structures and cellular components.
Main Results:
- Paramyxovirus-like tubular structures were identified in the kidneys of the SLE patient.
- Intracytoplasmic viral particles resembling herpes simplex virus were found in neurons.
- The patient's thymus gland showed lymphocyte depletion and absence of Hassall corpuscles, indicative of thymic dysplasia.
Conclusions:
- The findings suggest a potential association between viral-like particles, thymic dysplasia, and immune deficiency in SLE.
- Further research is warranted to explore the role of viruses in the pathogenesis of SLE.
- The observed 'nuclear bodies' may also be significant in the context of SLE pathology.
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