Novel human liver-tropic AAV variants define transferable domains that markedly enhance the human tropism of AAV7 and AAV8.
Novel human liver-tropic AAV variants define transferable domains that markedly enhance the human tropism of AAV7 and AAV8.
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DOI:
10.1016/j.omtm.2021.11.011
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发表时间:
2022-03-10
期刊:
影响因子:
--
通讯作者:
Lisowski L
中科院分区:
文献类型:
--
作者:
Cabanes-Creus M;Navarro RG;Zhu E;Baltazar G;Liao SHY;Drouyer M;Amaya AK;Scott S;Nguyen LH;Westhaus A;Hebben M;Wilson LOW;Thrasher AJ;Alexander IE;Lisowski L
Recent clinical successes have intensified interest in using adeno-associated virus (AAV) vectors for therapeutic gene delivery. The liver is a key clinical target, given its critical physiological functions and involvement in a wide range of genetic diseases. Here, we report the bioengineering of a set of next-generation AAV vectors, named AAV-SYDs (where “SYD” stands for Sydney, Australia), with increased human hepato-tropism in a liver xenograft mouse model repopulated with primary human hepatocytes. We followed a two-step process that staggered directed evolution and domain-swapping approaches. Using DNA-family shuffling, we first mapped key AAV capsid regions responsible for efficient human hepatocyte transduction in vivo. Focusing on these regions, we next applied domain-swapping strategies to identify and study key capsid residues that enhance primary human hepatocyte uptake and transgene expression. Our findings underscore the potential of AAV-SYDs as liver gene therapy vectors and provide insights into the mechanism responsible for their enhanced transduction profile. Using DNA-family shuffling and directed evolution, AAV variable regions (VRs) responsible for efficient human hepatocyte transduction in vivo were identified. Dissection of these regions via domain-swapping strategies defined key transferable domains that markedly enhanced primary human hepatocyte uptake and transgene expression of AAV7 and AAV8.
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影响因子:
46.9
作者:
Azuma, Hisaya;Paulk, Nicole;Grompe, Markus
通讯作者:
Grompe, Markus
影响因子:
14.8
作者:
通讯作者:
--
影响因子:
46.9
作者:
Nagai, T;Ibata, K;Miyawaki, A
通讯作者:
Miyawaki, A
影响因子:
12.4
作者:
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通讯作者:
Schaffer, David V.
DOI:
10.1016/j.omtm.2020.09.019
发表时间:
2020-12-11
期刊:
Molecular therapy. Methods & clinical development
影响因子:
--
作者:
Biswas M;Marsic D;Li N;Zou C;Gonzalez-Aseguinolaza G;Zolotukhin I;Kumar SRP;Rana J;Butterfield JSS;Kondratov O;de Jong YP;Herzog RW;Zolotukhin S
通讯作者:
Zolotukhin S