Difference between revisions of "Part:BBa K1633006:Experience"
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To ensure the interference efficiency of the MOR siRNA, three siRNA sequences targeting different sites of MOR mRNA were designed and transfected into the mouse neuroblastoma cell line Neuro2A. Efficient knockdown of MOR in Neuro2A cells is observed, and the sequence with the best interfering effect was selected for further study. Not showing the best efficiency, MOR siRNA-4 finally functions just as a backup. | To ensure the interference efficiency of the MOR siRNA, three siRNA sequences targeting different sites of MOR mRNA were designed and transfected into the mouse neuroblastoma cell line Neuro2A. Efficient knockdown of MOR in Neuro2A cells is observed, and the sequence with the best interfering effect was selected for further study. Not showing the best efficiency, MOR siRNA-4 finally functions just as a backup. | ||
| − | [[File:NJU-China-parts-fig 14.png]] | + | [[File:NJU-China-parts-fig 14.png|300px]] |
Figure 14. Relative level of MOR mRNA in Neuro2A cell after transfection of MOR siRNA-4 plasmid. | Figure 14. Relative level of MOR mRNA in Neuro2A cell after transfection of MOR siRNA-4 plasmid. | ||
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Applications of BBa_K1633006
USAGE AND BIOLOGY
We package MOR siRNA into exosomes by transfecting HEK293 cells with a plasmid expressing MOR siRNA and then collect siRNA-encapsulated exosomes. When inject the modified exosomes into the bloodstream, exosome will specifically recognize acetylcholine receptors and fuse with neurons under the direction of the RVG peptide. Once inside neurons, MOR siRNA will degrade MOR mRNA by base-pairing, resulting in sharp decrease of MOR on neuron membrane. As a consequence, MOR reduction and disturbed function will result in the inhabitation of the secretion of GABA and the suppression of the dopaminergic reward pathway, which ultimately have some therapeutic effects on opioid dependence.
To ensure the interference efficiency of the MOR siRNA, three siRNA sequences targeting different sites of MOR mRNA were designed and transfected into the mouse neuroblastoma cell line Neuro2A. Efficient knockdown of MOR in Neuro2A cells is observed, and the sequence with the best interfering effect was selected for further study. Not showing the best efficiency, MOR siRNA-4 finally functions just as a backup.
Figure 14. Relative level of MOR mRNA in Neuro2A cell after transfection of MOR siRNA-4 plasmid.
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