Effective antitumor immunity against murine gliomas using dendritic cells transduced with hTERTC27 recombinant adenovirus.

Effective antitumor immunity against murine gliomas using dendritic cells transduced with hTERTC27 recombinant adenovirus.
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使用 hTERTC27 重组腺病毒转导的树突状细胞对小鼠神经胶质瘤进行有效的抗肿瘤免疫

DOI:
10.3892/or.2011.1619
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发表时间:
2012-04
期刊:
影响因子:
4.2
通讯作者:
Peng Y
Peng Y
中科院分区:
医学3区
文献类型:
--
作者:
Gong HX;He L;Li XP;Wang YD;Li Y;Huang JJ;Wang Z;Xie D;Kung HF;Peng Y

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hTERTC27是一种27 kda的hTERT c端多肽,已被证明可导致hTERT阳性的HeLa细胞凋亡并抑制小鼠黑色素瘤的生长。hTERTC27与端粒功能障碍、基因调控的细胞凋亡、细胞周期和自然杀伤细胞(NK)活化有关,但其作用机制尚不完全清楚。在这里,我们报道了用hTERTC27转导的树突状细胞(DCs)可以增加T细胞的增殖,并增加T细胞上清液中白细胞介素-2 (IL-2)和干扰素-γ (IFN-γ)的浓度。它还能在体外诱导抗原特异性细胞毒性T淋巴细胞(CTL)对抗胶质瘤细胞。此外,hTERTC27基因转导的dc在体内对胶质瘤细胞表现出非常强的细胞毒性。它能延长胶质瘤小鼠的存活时间,抑制胶质瘤小鼠的生长。这些数据表明,hTERTC27基因转导的树突状细胞在体内和体外都能有效增强对胶质瘤的免疫。
hTERTC27, a 27-kDa hTERT C-terminal polypeptide has been demonstrated to cause hTERT-positive HeLa cell apoptosis and inhibits the growth of mouse melanoma. hTERTC27 has been associated with telomere dysfunction, regulation of gene-regulated apoptosis, the cell cycle and activation of natural killer (NK) cells, but its mechanism of action is not fully understood. Here, we report that dendritic cells (DCs) transduced with hTERTC27 can increase T-cell proliferation, and augment the concentration of interleukin-2 (IL-2) and interferon-γ (IFN-γ) in the supernatants of T cells. It can also induce antigen-specific cytotoxic T lymphocytes (CTL) against glioma cells in vitro. Moreover, hTERTC27 gene-transduced DCs exhibit a very potent cytotoxicity to glioma cells in vivo. It could prolong the survival time and inhibit the growth of glioma-bearing mice. These data suggest that hTERTC27 gene-transduced DCs can efficiently enhance immunity against gliomas in vitro and in vivo.
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发表时间: 2009-08-15
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影响因子: 11.2
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发表时间: 2008-09-01
期刊: NEOPLASIA
影响因子: 4.8
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