Oncolytic viruses encoding reporter genes utilized for in vivo molecular imaging are useful to locate the distribution of oncolytic viruses in pre-clinical tests. Optical detection methods mainly include green fluorescent protein (GFP), enhanced GFP (eGFP), discosoma red fluorescent protein (DsRed), and bioluminescence imaging (BLI), which utilizes luciferases. Reporter-encoding oncolytic viruses, including vaccinia virus, adenovirus, herpes simplex virus and vesicular stomatitis virus, allow accurate tracking of gene expression, tumor metastases, viral infection as well as assessment of gene therapy. https://www.creative-biolabs.com/oncolytic-virus/category-reporter-encoding-oncolytic-virus-293.htm