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Expression of TJ6 during pregnancy
J A Kang1, B A McBey, V Angkachatchai
1Department of Microbiology and Immunology, Finch University of Health Sciences, Chicago Medical School, IL 60064, USA.
American Journal of Reproductive Immunology (New York, N.Y. : 1989)
|November 5, 1997
Summary
The study found that TJ6 protein is expressed in placenta-associated cells throughout pregnancy. Its messenger RNA (mRNA) expression is not affected by genetic differences or immune deficiencies, suggesting a consistent role in pregnancy.
Area of Science:
- Immunology
- Reproductive Biology
- Molecular Biology
Background:
- Fetal-specific immune suppression is crucial during pregnancy.
- Regulation of uterine natural killer (uNK) cells in the decidua is vital for successful gestation.
- TJ6 is a molecule hypothesized to play a role in these processes.
Purpose of the Study:
- To investigate the expression and regulation of TJ6 during pregnancy.
- To understand the potential function of TJ6 in the context of maternal-fetal immune interactions.
Main Methods:
- TJ6 expression was examined in syngeneic, allogeneic, and mutant mice.
- Immunoblotting was used to detect TJ6 protein in placenta-associated mononuclear cells.
- Ribonuclease protection assay was employed to study TJ6 mRNA expression in various mouse models, including immune-deficient strains.
Main Results:
- TJ6 protein (70-72 kDa) was detected in most placenta-associated mononuclear cells across all pregnancy stages.
- TJ6 mRNA expression was observed in both syngeneic and allogeneic pregnancies.
- Expression of TJ6 mRNA remained consistent in immune-deficient mice (scid/scid and scid/scid.bg/bg).
Conclusions:
- Genetic disparities between mother and fetus do not significantly alter TJ6 mRNA expression.
- The absence of T and B lymphocytes does not impact TJ6 mRNA levels.
- Loss of natural killer (NK) cell lytic function does not affect TJ6 mRNA expression, indicating TJ6 regulation is independent of these immune components.
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