Based on gene expression analysis, TLR8 (Toll like receptor 8) was identified as a potential drug target. Well start by using the Human Protein Atlas (www.proteinatlas.org) to check the tissues where TLR8 is expressed. Search TLR8, and go to the Tissue page. In which tissue is TLR8 RNA expression highest? In which tissues is TLR8 protein expression highest? What implications might this have on the drug development process? Using the information in the Pathology page: In which other cancer types is TLR8 protein expressed?.