The long-term goal of this project is to determine if fetal exposure to ethanol leads to immune impairment, and if so, the nature and extent of the immune deficiency. The approach uses female mice fed a liquid diet containing ethanol at various doses. Offspring of these mothers will be compared to offspring of control (chow-fed, liquid diet-fed, and isocaloric control-fed) animals. Mice at various ages from late fetal to 8-week old will be subjected to a variety of in vitro and in vivo immunological tests to assess competence of T cells, B cells, natural killer cells and phagocytic cells. If immune defects are found, further experimentation will be done to pinpoint the critical period of fetal development and minimum dose for alcohol-induced damage. Another question to be addressed is whether severity of immune dysfunction correlates with """"""""classical"""""""" fetal alcohol syndrome anomalies such as craniofacial and brain defects. Off spring of alcohol-fed mothers will be tested several weeks after birth as well as in the late fetal and neonatal period to determine how long-lasting immune deficiencies are. Mice of inbred strains which differ in activity of alcohol-metabolizing enzymes, will be used to study the role of genetics in susceptibility to immune deficiency caused by maternal alcoholism. If this study demonstrates a high incidence of immune deficiency as a result of maternal alcohol consumption, there are obvious health-related implications. This study should increase our over-all understanding of risk to the fetus from maternal alcoholism. In addition, a correlation between classical fetal alcohol syndrome features and immune deficiency in expermental animals might alert the medical community to the advisability of examining FAS patients for immune deficiency as well as other currently recognized health risks associated with the syndrome.

Agency
National Institute of Health (NIH)
Institute
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
Type
Research Project (R01)
Project #
5R01AA007010-03
Application #
3110515
Study Section
Alcohol Biomedical Research Review Committee (ALCB)
Project Start
1986-08-01
Project End
1989-07-31
Budget Start
1988-08-01
Budget End
1989-07-31
Support Year
3
Fiscal Year
1988
Total Cost
Indirect Cost
Name
Montana State University Bozeman
Department
Type
Schools of Arts and Sciences
DUNS #
City
Bozeman
State
MT
Country
United States
Zip Code
59717
Zhou, J; Shao, H; Cox, N R et al. (1998) Gangliosides enhance apoptosis of thymocytes. Cell Immunol 183:90-8
Ewald, S J; Shao, H (1993) Ethanol increases apoptotic cell death of thymocytes in vitro. Alcohol Clin Exp Res 17:359-65
Bray, L A; Shao, H; Ewald, S J (1993) Effect of ethanol on development of fetal mouse thymocytes in organ culture. Cell Immunol 151:12-23
Wooten, M W; Seibenhener, M L; Soh, Y et al. (1992) Characterization and differential expression of protein kinase C isoforms in PC12 cells. Differentiation parallels an increase in PKC beta II. FEBS Lett 298:74-8
Ewald, S J; Huang, C; Bray, L (1991) Effect of prenatal alcohol exposure on lymphocyte populations in mice. Adv Exp Med Biol 288:237-44
Wooten, M W; Ewald, S J (1991) Alcohols synergize with NGF to induce early differentiation of PC12 cells. Brain Res 550:333-9
Ewald, S J; Huang, C (1990) Lymphocyte populations and immune responses in mice prenatally exposed to ethanol. Prog Clin Biol Res 325:191-200
Ewald, S J (1989) T lymphocyte populations in fetal alcohol syndrome. Alcohol Clin Exp Res 13:485-9
Ewald, S J; Walden, S M (1988) Flow cytometric and histological analysis of mouse thymus in fetal alcohol syndrome. J Leukoc Biol 44:434-40
Ewald, S J; Frost, W W (1987) Effect of prenatal exposure to ethanol on development of the thymus. Thymus 9:211-5