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Lymphocyte population dynamics in experimental murine diabetes
1Department of Medicine, University of Louisville School of Medicine, Kentucky 40292.
Immunological Investigations
|November 1, 1987
Summary
Hyperglycemia in diabetic mice impedes lymphocyte proliferation but does not fully inhibit immune responses. Diabetic mice showed altered cell counts but maintained lymphocyte distribution, impacting immune cell growth.
Area of Science:
- Immunology
- Endocrinology
Background:
- Hyperglycemia is a hallmark of diabetes mellitus.
- Diabetes can affect immune cell function and distribution.
Purpose of the Study:
- To investigate the impact of hyperglycemia on lymphocyte populations and immune responses in a mouse model.
- To analyze spleen and lymph node cellularity and lymphocyte subset distribution in diabetic mice.
Main Methods:
- Alloxan monohydrate was used to induce hyperglycemia in BALB/c mice.
- Mice were immunized with a contact allergen (DNFB) or a protein antigen (horse apoferritin) or left non-immunized.
- Spleen and lymph node cells were analyzed for total cell content and lymphocyte subpopulation distribution.
Main Results:
- Diabetic mice exhibited reduced total cell content in spleen and lymph nodes compared to controls.
- Lymphocyte subpopulations (B cells, T cells, suppressor T cells) showed no significant distribution differences between diabetic and control groups.
- Diabetic mice produced more specific antibody to horse apoferritin but had decreased in situ lymphocyte proliferation following DNFB challenge.
Conclusions:
- Hyperglycemia in alloxan-induced diabetes non-specifically impedes lymphocyte proliferation and population growth.
- While immune responses are affected, they are not completely inhibited in diabetic mice.