Resident memory T cells in mouse and human.

Area of Science:

• Immunology
• Cell Biology
• T Cell Biology

Background:

• Resident memory T cells (T_RM) are a distinct subset of T lymphocytes that remain in specific tissues.
• T_RM cells express markers like CD69 and/or CD103 and exhibit potent effector functions.
• These cells play crucial roles in tissue-specific immunity and inflammation.

Purpose of the Study:

• To consolidate current knowledge on resident memory T cells (T_RM).
• To elucidate the development, functional activities, and disease associations of T_RM cells.
• To provide a comprehensive understanding of T_RM in both mouse and human systems.

Main Methods:

• Review of recent scientific literature on resident memory T cells (T_RM).
• Analysis of studies investigating T_RM development and function in various tissues.
• Examination of T_RM involvement in infectious diseases, chronic inflammation, autoimmunity, and cancer immunology.

Main Results:

• T_RM cells are crucial for long-term immunity in barrier tissues (e.g., gut, skin, lungs).
• T_RM cells are implicated in non-barrier tissues in conditions like CNS disorders, liver disease, and joint inflammation.
• Recent research highlights T_RM's role in autoimmune diseases and tumor immunology.

Conclusions:

• Resident memory T cells (T_RM) are vital immune sentinels with broad implications in health and disease.
• Understanding T_RM biology is critical for developing novel therapeutic strategies.
• Further research is needed to fully harness the potential of T_RM in treating various pathologies.