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Inborn errors of immunity (IEIs) reveal critical factors for T-cell memory generation and maintenance. Studying these defects offers insights into T-cell memory development and potential clinical benefits.

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Area of Science:

  • Immunology
  • Genetics
  • Cell Biology

Background:

  • T-cell memory is crucial for adaptive immunity but its intricate mechanisms remain incompletely understood.
  • Inborn errors of immunity (IEIs) provide valuable human models to dissect T-cell memory generation and maintenance pathways.
  • Recent discoveries highlight monogenic disorders affecting T-cell memory, primarily studied in peripheral blood populations.

Approach:

  • This review inventories key IEIs and their corresponding mouse models linked to T-cell memory defects.
  • Focus is placed on the nuclear factor kappa B (NF-κB) signaling pathway, including CARMIL2, CD28, and OX-40.
  • Other critical factors examined include IKZF1 (IKAROS) and STAT3-dependent IL-6 signaling involving ZNF341.

Key Points:

  • Defects in NF-κB signaling, CARMIL2, CD28, and OX-40 impact T-cell memory.
  • IKZF1 and ZNF341-mediated IL-6 signaling are vital for T-cell memory generation.
  • Somatic reversion mosaicism in memory T cells underscores the importance of these genetic factors.

Conclusions:

  • Understanding IEIs associated with T-cell memory defects illuminates fundamental immunological processes.
  • These insights may lead to improved diagnostic approaches for IEIs.
  • Further investigation into T-cell memory subsets could aid in diagnosing various immune disorders.