Immunity parameters in mice of different strains

Area of Science:

• Immunology
• Comparative immunology
• Mouse models in research

Background:

• Quantitative composition and functional activity of immunocompetent cells exhibit strain-dependent variations in mice.
• Understanding these differences is crucial for interpreting immunological studies and selecting appropriate mouse models.

Purpose of the Study:

• To quantitatively assess and compare the immunocompetent cell profiles across different mouse strains.
• To identify specific immune cell populations and their functional activities that differ between mouse strains.

Main Methods:

• Analysis of T cell counts, proliferative activity, and cytokine production (IL-2, IL-10) in spleen and bone marrow.
• Assessment of antigen-specific T cell numbers and functional activity.
• Evaluation of peritoneal macrophage phagocytic activity.
• Quantification of splenic antibody-producing cells and B cell functional activity.

Main Results:

• CBA/CaLac, DBA/2, and C3H mice demonstrated higher T cell counts, spleen T cell proliferation, IL-2/IL-10 production, and antigen-specific T cell activity compared to C57Bl/6, BALB/c, and CC57W mice.
• C3H mice exhibited high phagocytic activity of peritoneal macrophages, while BALB/c and CC57W mice showed low activity.
• C57Bl/6, BALB/c, and CC57W mice had higher numbers of antibody-producing cells in the spleen than CBA/CaLac, DBA/2, C3H, A/SN, and AKR/JY mice.
• BALB/c and CC57W mice displayed lower B cell functional activity compared to CBA/CaLac and DBA/2 mice.

Conclusions:

• Significant quantitative and functional differences in immunocompetent cells exist among various mouse strains.
• These strain-specific immunological profiles necessitate careful consideration when utilizing mouse models in research.
• The study highlights distinct immune system characteristics that can influence experimental outcomes.