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逆转录病毒介导的人腺苷脱氨酶基因转移:功能性酶在小鼠体内造血干细胞中的表达。

Retrovirus-mediated gene transfer of human adenosine deaminase: expression of functional enzyme in murine hematopoietic stem cells in vivo.

作者信息

Lim B, Williams D A, Orkin S H

机构信息

Division of Hematology-Oncology, Children's Hospital, Boston, Massachusetts.

出版信息

Mol Cell Biol. 1987 Oct;7(10):3459-65. doi: 10.1128/mcb.7.10.3459-3465.1987.

DOI:10.1128/mcb.7.10.3459-3465.1987
PMID:3683389
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC367997/
Abstract

Simplified Moloney murine leukemia virus-based recombinant retrovirus vectors have been constructed which transduce human adenosine deaminase (ADA) cDNA. ADA transcription is under the control of the constitutive promoter for the human X chromosome phosphoglycerate kinase (pgk) gene. In these simplified vectors, dominant selectable markers are not included and selection is dependent on overproduction of functional ADA enzyme. Primary murine hematopoietic cells were infected with helper-free recombinant ADA virus generated from Psi-2 packaging cells. Protein analysis revealed that human ADA enzyme was expressed in progenitor-derived hematopoietic colonies in vitro and CFU-S-derived spleen colonies in vivo. Enzyme expression was dependent on transcription from the pgk promoter. ADA expression in primary murine hematopoietic cells directed by the internal promoter was not adversely affected by the presence of the Moloney virus long terminal repeat enhancer sequence. Use of these vectors allows systematic evaluation of the effects of specific sequences in recombinant retrovirus vectors on expression in primary murine hematopoietic cells in vivo.

摘要

已构建出基于简化型莫洛尼鼠白血病病毒的重组逆转录病毒载体,其可转导人腺苷脱氨酶(ADA)cDNA。ADA转录受人类X染色体磷酸甘油酸激酶(pgk)基因组成型启动子的控制。在这些简化载体中,不包含显性选择标记,选择依赖于功能性ADA酶的过量产生。用来自Psi-2包装细胞产生的无辅助重组ADA病毒感染原代鼠造血细胞。蛋白质分析显示,人ADA酶在体外祖细胞来源的造血集落以及体内CFU-S来源的脾集落中表达。酶表达依赖于pgk启动子的转录。由内部启动子指导的原代鼠造血细胞中的ADA表达不受莫洛尼病毒长末端重复增强子序列存在的不利影响。使用这些载体能够系统评估重组逆转录病毒载体中特定序列对体内原代鼠造血细胞表达的影响。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72af/367997/172a69b4dbaf/molcellb00082-0103-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72af/367997/83a2f3091f54/molcellb00082-0100-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72af/367997/e5ec629576b5/molcellb00082-0102-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72af/367997/b927fe0b1b20/molcellb00082-0102-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72af/367997/172a69b4dbaf/molcellb00082-0103-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72af/367997/83a2f3091f54/molcellb00082-0100-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72af/367997/e5ec629576b5/molcellb00082-0102-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72af/367997/b927fe0b1b20/molcellb00082-0102-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/72af/367997/172a69b4dbaf/molcellb00082-0103-a.jpg

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