A427, HepG2, and CAOV3 were labeled with luciferase (Genechem, GV633) as previously described (10). Generation of Engineered Cells Expressing Membrane-Bound Protein OX40L (“type”:”entrez-nucleotide”,”attrs”:”text”:”NM_003326.5″,”term_id”:”1519311410″,”term_text”:”NM_003326.5″NM_003326.5) and 4-1BBL