An Update on Toll-like Receptor 2, Its Function and Dimerization in Pro- and Anti-Inflammatory Processes

Area of Science:

• Immunology
• Molecular Biology
• Cellular Biology

Background:

• Inflammation is essential for survival but chronic inflammation can be fatal.
• Pattern recognition Toll-like receptors (TLRs) initiate inflammatory responses.
• Toll-like receptor 2 (TLR2) is a key pattern recognition receptor (PRR) involved in pathogen recognition.

Purpose of the Study:

• To provide an updated overview of Toll-like receptor 2 (TLR2).
• To discuss TLR2 homo- and heterodimers.
• To explore TLR2's role in health and disease, focusing on infectious and neurodegenerative conditions.

Main Methods:

• Literature review of existing studies on TLR2.
• Analysis of TLR2 homo- and heterodimerization.
• Synthesis of findings on TLR2's pro- and anti-inflammatory properties.

Main Results:

• TLR2 forms heterodimers with TLR1, TLR4, TLR6, and TLR10, enabling broad pathogen recognition.
• TLR2 exhibits both pro-inflammatory and anti-inflammatory functions.
• Recent findings link TLR2 to various infectious and neurodegenerative diseases.

Conclusions:

• TLR2 is a critical regulator of inflammatory processes with diverse roles.
• Understanding TLR2 mechanisms is crucial for developing therapeutic strategies for TLR2-associated diseases.
• Further research is needed to fully elucidate TLR2's complex functions in health and disease.