Table 3

Drug delivery of OVs by liposomes, polymers, and albumin

Oncolytic virusMain NPs ingredient(s)Therapeutic efficacy
AdenovirusLiposomeDecreased production of adenovirus neutralizing antibodies (AdNAbs)
AdenovirusDOTAP/DOPEImproved antitumor effect
HSVLiposomeReady transfection into cultured cells; efficient production of infectious viruses; improved in vivo transduction efficiency
ReovirusCationic lipidPromotion of reovirus delivery to the cytoplasmic matrix
M1Soybean lecithin lipidBlocking of viral immunogenicity;
enhanced killing effect
AdenovirusAnionic lipidEnhanced transfection efficiency
Newcastle disease virusiRGD lipidSignificant lysis of tumor and endothelial cells;
significant promotion of antitumor immunity;
significant inhibition of tumor neovascularization;
reversal of the tumor suppressor microenvironment
AdenovirusHigh molecular weight PEG (20–35 kDa)Decreased liver accumulation
AdenovirusPEGElevated resistance to inactivation by Ad-specific neutralizing antibodies (NABs);
attenuation of the induction of innate antiviral immune responses
Vaccinia virusPLGAAppropriate inhibition of the growth of tumor volume
AdenovirusABPsMarkedly improved transduction efficiency of Ads
AdenovirusCDMarkedly enhanced pathological effects in a dose-dependent manner
AdenoviruspHPMAEnhanced transduction;
Prevention of hepatic sequestration of intravenously administered Ads
AAVpHPMAEnhanced protection against neutralizing antisera
AdenovirusPEIElevated transduction efficiency;
increased effectiveness of cancer cell killing
AdenovirusPEI;PEGEnhanced transduction efficiency;
improved anti-tumor effect
Measles virusPEIEnhanced oncolytic activity
AdenovirusGalactosylated polymersMinimized adverse effects
Vaccinia virusAmphiphilic polymerEffective and significant decrease in the binding of anti-VV neutralizing antibodies
AdenovirusPCDPAccumulation and efficient replication in tumor tissues;
improved anti-tumor effect
AdenovirusPEG-b-PHFImproved anti-tumor effect
AdenovirusPPCBAEnhanced pH sensitivity;
improved release of enveloped OVs in the intracellular compartment of cancer cells
AdenovirusChitosan-PEG-FADiminished immune response;
increased relative plasma circulating half-life;
decreased hepatic accumulation (378-fold)
AdenovirusPAMAMDecreased immunogenicity during circulation;
enhanced Ad circulation time
AdenovirusAlbumin-binding domain (ABD)Protection of the viral capsid to overcome pre-existing NABs
AdenovirusAlbumin-binding domain (ABD)Induction of 450-fold greater cytotoxicity in tumor cells than normal cells; decreased systemic toxicity; improved tumor targeting; NAB escape