Fig. 2From: Recent advances of engineered oncolytic viruses-based combination therapy for liver cancerGene therapy strategies of mesenchymal stem cells loaded with oncolytic adenovirus carrying target genes regulated by a tetracycline system. MSCs loaded with OVs carrying target genes are injected into the tail vein, and viral replication is regulated by a tetracycline system, which can be a useful strategy for the treatment of liver cancer in vivoBack to article page