The interaction of innate and adaptive immune responses is extremely complex and just beginning to be understood in detail. The tendency for biomedical research to establish reproducible models, cell systems and receptor pathways, and then to focus on these systems can sometimes result in opportunity that is not appreciated. The Toll-like receptor (TLR)3 pathway as a therapeutic target falls into this category. There is an immense body of data that has been developed for more than 40 years; all of which is highly relevant to the TLR3 story and yet most of which predates the elucidation of the TLR pathways. A new recognition of TLR3, its unique properties that distinguish it from other TLR pathways, the specificity of relevant and long-available TLR agonists, and new studies of this biology utilizing modern assay methodology suggest that this target may be especially valuable as an adjunct to multiple immunotherapy strategies currently in use or in development.
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Source: Christopher F Nicodemus and Jonathan S Berek. TLR3 agonists as immunotherapeutic agents. Immunotherapy, March 2010 ,Vol. 2, No. 2, Pages 137-140 , DOI 10.2217/imt.10.8 (doi:10.2217/imt.10.8) http://www.futuremedicine.com/doi/full/10.2217/imt.10.8 (Full article)