Adenoviral Gene Delivery vs Lentiviral Gene Delivery
|
|
Lentivirus |
Adenovirus |
Infects many different human
cell types |
Yes |
Yes |
Infects both dividing and
non-dividing cells |
Yes |
Yes |
| Non-integrating virus |
No |
Yes |
High level of protein expression
(up to 10-20% total protein) |
No |
Yes |
Ability to accommodate long
inserts (up to 8 kb) |
No |
Yes |
| Easy to scale-up/amplify |
No |
Yes |
| Easy to get titers >10 IFU/ml |
No |
Yes |
Easy to get a multiplicity of
infection >25 copies per cell |
No |
Yes |
Permalink
December 31, 2011 at 6:59 pm
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sacB (sucrase) gene from Bacillus subtilis can replace attB gene for negative selection against incorrect recombinants and the parental donor vector following LR recombination.
attR1 –sacB—attR2
at gaacatcaaa aagtttgcaa aacaagcaac agtattaacc tttactaccg 1560
cactgctggc aggaggcgca actcaagcgt ttgcgaaaga aacgaaccaa aagccatata 1620
aggaaacata cggcatttcc catattacac gccatgatat gctgcaaatc cctgaacagc 1680
aaaaaaatga aaaatatcaa gttcctgagt tcgattcgtc cacaattaaa aatatctctt 1740
ctgcaaaagg cctggacgtt tgggacagct ggccattaca aaacgctgac ggcactgtcg 1800
caaactatca cggctaccac atcgtctttg cattagccgg agatcctaaa aatgcggatg 1860
acacatcgat ttacatgttc tatcaaaaag tcggcgaaac ttctattgac agctggaaaa 1920
acgctggccg cgtctttaaa gacagcgaca aattcgatgc aaatgattct atcctaaaag 1980
accaaacaca agaatggtca ggttcagcca catttacatc tgacggaaaa atccgtttat 2040
tctacactga tttctccggt aaacattacg gcaaacaaac actgacaact gcacaagtta 2100
acgtatcagc atcagacagc tctttgaaca tcaacggtgt agaggattat aaatcaatct 2160
ttgacggtga cggaaaaacg tatcaaaatg tacagcagtt catcgatgaa ggcaactaca 2220
gctcaggcga caaccatacg ctgagagatc ctcactacgt agaagataaa ggccacaaat 2280
acttagtatt tgaagcaaac actggaactg aagatggcta ccaaggcgaa gaatctttat 2340
ttaacaaagc atactatggc aaaagcacat cattcttccg tcaagaaagt caaaaacttc 2400
tgcaaagcga taaaaaacgc acggctgagt tagcaaacgg cgctctcggt atgattgagc 2460
taaacgatga ttacacactg aaaaaagtga tgaaaccgct gattgcatct aacacagtaa 2520
cagatgaaat tgaacgcgcg aacgtcttta aaatgaacgg caaatggtac ctgttcactg 2580
actcccgcgg atcaaaaatg acgattgacg gcattacgtc taacgatatt tacatgcttg 2640
gttatgtttc taattcttta actggcccat acaagccgct gaacaaaact ggccttgtgt 2700
taaaaatgga tcttgatcct aacgatgtaa cctttactta ctcacacttc gctgtacctc 2760
aagcgaaagg aaacaatgtc gtgattacaa gctatatgac aaacagagga ttctacgcag 2820
acaaacaatc aacgtttgcg cctagcttcc tgctgaacat caaaggcaag aaaacatctg 2880
ttgtcaaaga cagcatcctt gaacaaggac aattaacagt taacaaataa
Permalink
December 31, 2011 at 4:50 pm
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Comparison of Viral Delivery Systems
| Feature |
Adenovirus |
AAV* |
Retrovirus |
Lentivirus |
| Infects non-dividing cells |
X |
X |
|
X |
| Stable integration into host genome |
|
X |
X |
X |
| Can be pseudotyped |
|
X |
X |
X |
| Accepts large inserts |
X |
|
X |
X |
| Lack of interferon response |
|
|
X |
X |
| No issue with transcriptional silencing within genome |
N/A |
|
|
X |
| *Adeno-Associated Virus |
Permalink
December 30, 2011 at 3:00 pm
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1, PlasMapper http://wishart.biology.ualberta.ca/PlasMapper/
Permalink
December 17, 2011 at 12:34 pm
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Permalink
December 9, 2011 at 2:56 pm
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