Interactions between the microbiota and innate and innate-like lymphocytes

Area of Science:

• Immunology
• Microbiology
• Microbiome research

Background:

• The microbiota plays a vital role in host defense and immune homeostasis.
• Innate and innate-like lymphocytes are key immune cells residing in tissues.
• These lymphocytes exhibit rapid responses to microbial stimuli.

Purpose of the Study:

• To review the critical role of innate and innate-like lymphocytes in host-microbe interactions.
• To elucidate the mechanisms by which these lymphocytes communicate with the microbiome.
• To highlight the impact of lymphocytes on microbial communities and immune regulation.

Main Methods:

• Literature review of studies on innate lymphoid cells (ILCs), NK cells, NKT cells, MAIT cells, and γδ T cells.
• Analysis of research on lymphocyte-microbiota crosstalk.
• Synthesis of findings on immune homeostasis and microbial modulation.

Main Results:

• Innate and innate-like lymphocytes are strategically positioned to sense microbial signals.
• These cells actively shape the microbiota composition through their effector functions.
• Lymphocyte activity is essential for maintaining the segregation of commensal microbes.
• Microbiota composition influences the development and function of innate and innate-like lymphocytes.

Conclusions:

• Innate and innate-like lymphocytes are indispensable mediators of the host-microbiome axis.
• Their crosstalk with the microbiota is fundamental for immune homeostasis and barrier integrity.
• Understanding this interaction opens avenues for therapeutic interventions in immune-mediated diseases.