PHENOTYPIC ANALYSIS OF MICE DEFICIENT FOR Ly6C1/Ly6C2
Morimoto, Junko Tokushima University Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Matsumoto, Minoru Tokushima University Tokushima University Educator and Researcher Directory
Miyazawa, Ryuichiro Tokushima University Tokushima University Educator and Researcher Directory
Oya, Takeshi Tokushima University Tokushima University Educator and Researcher Directory
Tsuneyama, Koichi Tokushima University Tokushima University Educator and Researcher Directory KAKEN Search Researchers
Ly6C comprises two homologous components of Ly6C1 and Ly6C2, and the expression of either of the Ly6C molecules defines unique functional subsets of monocytes. Ly6C is also expressed by other immune cell types, including Aire-expressing medullary thymic epithelial cells. Because the role of Ly6C expression in determining the functional subsets remains unclear, we generated mice deficient for both Ly6C1 and Ly6C2 with CRISPR-Cas9–mediated deletion. Mice deficient for Ly6C1/Ly6C2 showed no major alterations in the subsets and function of monocyte and other immune cells, including the cells involved in the dextran sulfate sodium salt–induced colitis model. By generating the mice deficient for Ly6C1 alone, we have also investigated the expression pattern of Ly6C1 and Ly6C2 in immune cells. Except for medullary thymic epithelial cells and CD4 single-positive T cells, immune cells predominantly expressed Ly6C2. Thus, despite the importance as a marker with a unique differential expression pattern, the Ly6C molecules have no major impact on determining the functional subsets and maintaining immune homeostasis.
The American Association of Immunologists
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Institute of Advanced Medical Sciences