ABSTRACT
Purpose
To improve gene transducibility mediated by adenovirus (Ad) in cancer cells and further enhance anti-tumor effects by co-delivery.
Methods
Calcium-induced phase change method was used to prepare the complex of anionic liposomes and adenovirus (AL/Ad5). Gene expression was qualitatively detected by X-gal staining and quantitatively detected by ELISA. Taking adenovirus-mediated stromal cell-derived factor-1α (Ad5-SDF1α) as therapeutic gene and carmustine (BCNU) as chemotherapeutic agent, a co-delivering system of AL/Ad5-SDF1α/BCNU was prepared and administered to tumor-bearing mice by intratumor injection.
Results
Enhanced LacZ gene transduction was obtained in B16 and Lewis lung carcinoma cells in vitro and in vivo. Complexes of AL/Ad5-SDF1α improved SDF1α gene expression and led to accumulation of dendritic cells among the murine B16 melanoma cells in vivo. This co-delivery system of AL/Ad5-SDF1α/BCNU could significantly suppress tumor growth and prolong survival of tumor-bearing mice.
Conclusions
Through the co-delivering system, AL/Ad5-SDF1α could synergize with BCNU to improve the antitumor effect. It may be a promising strategy for solid tumor therapy.
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Abbreviations
- Ad5-SDF1α:
-
adenovirus-mediated stromal cell-derived factor-1α
- Ad-SOD:
-
adenovirus-mediated superoxide dismutases
- AL:
-
anionic liposomes
- AL/Ad5:
-
complexes of anionic liposomes and adenovirus
- AL/Ad5-SDF1α/BCNU:
-
complexes of adenovirus and carmustine (BCNU) co-delivered by aninoic liposomes
- BCNU:
-
carmustine [1, 3-bis(2-chloroethyl)-1-nitrosourea]
- CAR:
-
coxsackie-adenovirus receptor
- DCs:
-
dendritic cells
- ELISA:
-
enzyme-linked immunosorbent assay
- LacZ:
-
β-galactosidase gene Z
- LLC:
-
Lewis lung carcinoma
- MOI:
-
multiplicity of infection
- Pfu:
-
plaque-forming unit
- Q-PCR:
-
quantitative-PCR
- RGD:
-
arginine-glycine-aspartate
- X-gal:
-
5-bromo-4-chloro-3-indolyl β-D-galactopyranoside
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ACKNOWLEDGMENTS & DISCLOSURES
We are thankful for the financial support of the National Natural and Science Foundation of China (No. 30973657) and the National Science and Technology Major Project of China (No. 2009ZX09310-002).
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Zhong, Z., Wan, Y., Shi, S. et al. Co-delivery of Adenovirus and Carmustine by Anionic Liposomes with Synergistic Anti-tumor Effects. Pharm Res 29, 145–157 (2012). https://doi.org/10.1007/s11095-011-0521-7
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DOI: https://doi.org/10.1007/s11095-011-0521-7