Do maternal cells trigger or perpetuate autoimmune diseases in children?
Author Information
Author(s): Stevens Anne M
Primary Institution: Department of Pediatrics, University of Washington, Children's Hospital and Regional Medical Center
Hypothesis
Is persistent maternal microchimerism (MMc) normal in infancy?
Conclusion
Maternal microchimerism is commonly present in tissues and blood of patients with autoimmune disease and can persist into adulthood.
Supporting Evidence
- Maternal cells were detected in 40% of infants with SCID.
- Graft-versus-host disease (GVHD) developed in 76% of SCID patients with detectable MMc.
- Maternal DNA was found in 24–100% of cord blood samples.
- Maternal cells can persist into adulthood, detected in 55% of subjects aged 9 to 49 years.
- MMc levels were found to be higher in tissues than in blood.
Takeaway
Moms can pass some of their cells to their babies, and these cells can stick around for a long time, sometimes even causing health issues later on.
Methodology
The study involved detecting maternal cells in infants with severe combined immunodeficiency (SCID) and analyzing their presence in various tissues.
Potential Biases
Potential bias in the selection of patients and the interpretation of results related to autoimmune diseases.
Limitations
The study primarily focused on SCID patients, which may not represent the general population.
Participant Demographics
Infants with severe combined immunodeficiency (SCID) and healthy individuals.
Statistical Information
P-Value
0.001
Statistical Significance
p = 0.001
Digital Object Identifier (DOI)
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