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The E-Id axis specifies adaptive and innate lymphoid lineage cell fates
Masaki Miyazaki1, Kazuko Miyazaki1
1Laboratory of Immunology, Institute for Life and Medical Sciences, Kyoto University, 606-8507, Kyoto, Japan.
Adaptive immunity relies on V(D)J recombination, a process involving recombination activation gene (Rag) 1/2 proteins. This review explores how Rag gene expression guides adaptive lymphocyte lineage commitment and differentiates them from innate lymphoid cells.
Area of Science:
- Immunology
- Molecular Biology
- Developmental Biology
Background:
- The adaptive immune system protects against pathogens through T and B cells, which recognize specific antigens.
- Antigen recognition relies on immunoglobulin (Ig) and T-cell receptor (TCR) diversity generated by V(D)J DNA recombination.
- Recombination activation gene (Rag) 1/Rag2 proteins are crucial for V(D)J recombination and adaptive lymphocyte development.
Conclusions:
- Understanding the bifurcation between adaptive and innate immunity is essential for comprehending immune system function.
- Transcription factor networks precisely control lymphocyte lineage commitment.
- Stringent regulation of Rag gene expression is fundamental for establishing adaptive immunity.
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