Abstract:
:To compare the oncosuppressive activity of integrated and episomal adeno-associated virus (AAV), two Epstein-Barr virus (EBV) derived episomal form vectors, p205 and p220, were used to generate plasmids containing episomal AAV. HeLa cells transfected with p205, p220, and the plasmids with forward (pA205-1, pA220-1) and reverse (pA205-1, pA220-2) orientation of inserted AAV DNA were designated H205, H220, HA205-1, HA220-1, HA205-1, and Ha220-2, respectively. The respective average copy numbers of pA205 and pA220 per cell are 4.9-6.9 and 4.3. The AAV-transfected HeLa cells displayed growth inhibition when compared to parental and the vector-transfected HeLa cells. Nude mice assay showed that the tumor size from HA205-1 and HA205-2 cells were 11.3 and 22.6%, and those from HA220-1 and HA220-2 cells were 54.8 and 57.3%, respectively, when compared to parental HeLa cells. HA205-1 cells containing forward AAV insert exerted more oncosuppressive effect than HA205-2 cells containing reverse AAV insert. Our data indicate that the episomal AAV can exert oncosuppressive activity as compared to the integrated AAV in HeLa cells.
journal_name
Int J Oncoljournal_title
International journal of oncologyauthors
Wu FY,Wu CY,Lin CH,Wu CHkeywords:
subject
Has Abstractpub_date
1999-07-01 00:00:00pages
101-6issue
1eissn
1019-6439issn
1791-2423journal_volume
15pub_type
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journal_title:International journal of oncology
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