Moderate levels of IFN-λ1 were measured in cDC supernatants, which increased upon addition of oHSV1-FLT3L-induced oncolysates from all tumor cell lines (48 h) and also using BXPC3 and ASPC1 oncolysates treated with oHSV1-FLT3L for 24 h. The gene discussed is FLT3LG; the disease is neoplasm.