A CTLA-4 Antagonizing DNA Aptamer with Antitumor Effect.

A CTLA-4 Antagonizing DNA Aptamer with Antitumor Effect.
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CTLA-4拮抗DNA适体具有抗肿瘤作用。

DOI:
10.1016/j.omtn.2017.08.006
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发表时间:
2017-09-15
期刊:
Molecular therapy. Nucleic acids
影响因子:
--
通讯作者:
Yang PC
Yang PC
中科院分区:
其他
文献类型:
--
作者:
Huang BT;Lai WY;Chang YC;Wang JW;Yeh SD;Lin EP;Yang PC

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细胞毒性T淋巴细胞抗原-4(CTLA-4)阻断剂的成功翻译彻底改变了癌症免疫治疗的概念。尽管单克隆抗体治疗仍然是临床实践中的主流,但适体是包含抗体模拟功能的合成寡核苷酸。在这里,我们报告了一种新的高亲和力CTLA-4拮抗DNA适配体(解离常数,11.84 nM),aptCTLA-4,这是通过基于细胞的SELEX和高通量测序鉴定。aptCTLA-4在血清中相对稳定,在细胞和动物模型中促进淋巴细胞增殖并抑制肿瘤生长。我们的研究证明了功能性CTLA-4靶向适体的开发管道,并表明aptCTLA-4的翻译潜力。
The successful translation of cytotoxic T lymphocyte antigen-4 (CTLA-4) blockade has revolutionized the concept of cancer immunotherapy. Although monoclonal antibody therapeutics remain the mainstream in clinical practice, aptamers are synthetic oligonucleotides that encompass antibody-mimicking functions. Here, we report a novel high-affinity CTLA-4-antagonizing DNA aptamer (dissociation constant, 11.84 nM), aptCTLA-4, which was identified by cell-based SELEX and high-throughput sequencing. aptCTLA-4 is relatively stable in serum, promotes lymphocyte proliferation, and inhibits tumor growth in cell and animal models. Our study demonstrates the developmental pipeline of a functional CTLA-4-targeting aptamer and suggests a translational potential for aptCTLA-4.
DOI: 10.1111/gtc.12352
发表时间: 2016-05-01
期刊: GENES TO CELLS
影响因子: 2.1
作者:
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