Reading the room: iNKT cells influence B cell responses.

Area of Science:

• Immunology
• Cellular Biology

Background:

• Invariant Natural Killer T (iNKT) cells bridge innate and adaptive immunity, regulating homeostasis and pathogen responses.
• iNKT cells interact with CD1d-expressing B cells for immune protection and regulation.
• Recent research highlights iNKT cells' role in modulating inflammatory and autoreactive B cells.

Purpose of the Study:

• To review recent advances in the cooperation between iNKT cells and B cells.
• To explore the role of iNKT and B cell interactions in autoimmunity and sterile inflammation.
• To provide insights for developing targeted clinical interventions.

Main Methods:

• Literature review of recent studies on iNKT and B cell interactions.
• Analysis of iNKT cell plasticity in response to environmental signals (iNKTreg vs. iNKT FH).
• Examination of iNKT and B cell roles in autoimmune and sterile inflammatory conditions.

Main Results:

• Environmental signals dictate iNKT cell function, influencing homeostasis or effector responses.
• iNKT cells can act as regulatory (iNKTreg) or helper (iNKT FH) cells impacting B cell populations.
• Dysregulation of iNKT-B cell interactions contributes to autoimmunity and sterile inflammation.

Conclusions:

• iNKT and B cell cooperation is crucial for immune homeostasis and response to pathogens.
• Targeting specific iNKT and B cell subsets offers potential therapeutic strategies for immune-mediated diseases.
• Further understanding of these cellular interactions will advance treatments for various indications.