Generating a transgenic mouse line stably expressing human MHC surface antigen from a HAC carrying multiple genomic BACs.
Generating a transgenic mouse line stably expressing human MHC surface antigen from a HAC carrying multiple genomic BACs.
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DOI:
10.1007/s00412-014-0488-3
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发表时间:
2015-03
期刊:
影响因子:
1.6
通讯作者:
Masumoto H
中科院分区:
文献类型:
--
作者:
Hasegawa Y;Ishikura T;Hasegawa T;Watanabe T;Suzuki J;Nakayama M;Okamura Y;Okazaki T;Koseki H;Ohara O;Ikeno M;Masumoto H
The human artificial chromosome (HAC) vector is a promising tool to improve the problematic suppression and position effects of transgene expression frequently seen in transgenic cells and animals produced by conventional plasmid or viral vectors. We generated transgenic mice maintaining a single HAC vector carrying two genomic bacterial artificial chromosomes (BACs) from human HLA-DR loci (DRA and DRB1). Both transgenes on the HAC in transgenic mice exhibited tissue-specific expression in kidney, liver, lung, spleen, lymph node, bone marrow, and thymus cells in RT-PCR analysis. Stable functional expression of a cell surface HLA-DR marker from both transgenes, DRA and DRB1 on the HAC, was detected by flow cytometric analysis of splenocytes and maintained through at least eight filial generations. These results indicate that the de novo HAC system can allow us to manipulate multiple BAC transgenes with coordinated expression as a surface antigen through the generation of transgenic animals. The online version of this article (doi:10.1007/s00412-014-0488-3) contains supplementary material, which is available to authorized users.
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