The potential use of Toll-like receptor (TLR) agonists and antagonists as prophylactic and/or therapeutic agents

Amani Makkouk, Alexander M Abdelnoor
Immunopharmacology and Immunotoxicology 2009, 31 (3): 331-8
Toll-like receptors (TLR) and their ligands are one of the main players in the initiation of innate immunity which precedes, and is required, for the establishment of adaptive immunity. Manipulating the immune response by using TLR agonists or antagonists might be of therapeutic and/or prophylactic value. This review covers; 1-TLR. their natural ligands and ligand - TLR signaling events, 2-TLR against and their use in clinical trials as vaccine adjuvants, and to treat allergy, cancer and infectious diseases, 3-TLR antagonists and their use in clinical trials to treat septic shock and autoimmune diseases. Potential drawbacks related to their potential use as prophylactic and/or therapeutic agents are discussed.

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