Author/Editor     Prosen, Lara; Hudoklin, Samo; Čemažar, Maja; Štimac, Monika; Lampreht Tratar, Urša; Ota, Maja; Ščančar, Janez; Romih, Rok; Serša, Gregor
Title     Magnetic field contributes to the cellular uptake for effective therapy with magnetofection using plasmid DNA encoding against Mcam in B16F10 melanoma in vivo
Type     članek
Publication year     2016
ISSN     1748-6963 - Nanomedicine (London, England)
Language     eng
Abstract     Aim: We explored the distribution and cellular uptake of intratumorally injected SPIONs-PAA-PEI-pDNA (magnetofection complexes), and antitumor effectiveness of magnetofection with plasmid DNA encoding short hairpin RNA (shRNA) against Mcam (pDNA anti-MCAM ). Materials & methods: Analyses were made based on the histology, ultrastructure and quantitative measurements of magnetofection complexes, and quantification of the antitumor effectiveness in B16F10 melanoma in vivo . Results: Injected magnetofection complexes were distributed around the injection site. Exposure of tumors to external magnetic field contributed to the uptake of magnetofection complexes from extracellular matrix into melanoma cells. Three consecutive magnetofections of tumors with pDNA anti-MCAM resulted in significant reduction of tumor volume. Conclusion: Magnetofection is effective for gene delivery to melanoma tumors, but requires a magnetic field for cellular uptake and antitumor effect.
Keywords     intratumoral injection
magnetofection
therapeutic plasmid DNA
intratumorski injiciranje
magnetofekcija
terapevtski plazmid DNA