Tertiary Lymphoid Organs at the Center Stage of Skin's Humoral Immunity
September 2025
in “
Immunological Reviews
”
TLDR The skin can independently form immune responses through special structures, offering new ways to treat skin diseases.
The study highlights the skin's ability to independently form protective immune responses through dermal tertiary lymphoid organs (TLOs), which function similarly to germinal centers in lymph nodes. These TLOs provide humoral immunity without relying on inflammatory signals, facilitated by interactions with the skin's microbiota. This discovery suggests a significant role for TLOs in skin immunity and opens new avenues for understanding and treating skin diseases by focusing on non-inflammatory host-microbiota interactions. The findings emphasize the potential for innovative skin health care solutions by leveraging these local immune responses.