Female nude mice (CrTac:NCr-Foxn1nu) bearing peritoneal human ES2-tdTomato/Luc tumours were divided into 3 groups, the first group served as a control using native MSCs, while the other 2 groups were treated with CDUPRT or CDUPRT-IFNb expressing MSCs to compare the co-delivery of 5FU and IFNb. The gene discussed is IFNB1; the disease is neoplasm.