Abstract:
:Glioblastoma (GBM) is a highly aggressive brain tumor for which novel therapeutic approaches, such as immunotherapy, are urgently needed. Zoledronate (ZOL), an inhibitor of osteoclastic activity, is known to stimulate peripheral blood-derived γδT cells and sensitize tumors to γδT cell-mediated killing. To investigate the feasibility of γδT cell-based immunotherapy for patients with GBM, we focused on the killing of GBM cell lines by γδT cells and the molecular mechanisms involved in these cell-cell interactions. Peripheral blood mononuclear cells were expanded in ZOL and interleukin (IL)-2 for 14 days, and γδT cells were enriched in the expanded cells by the immunomagnetic depletion of αβT cells. Gliomas are resistant to NK cells but susceptible to lymphokine-activated killer cells and some cytotoxic T lymphocytes. When the γδT cell-mediated killing of three GBM cell lines (U87MG, U138MG and A172 cells) and an NK-sensitive leukemia cell line (K562 cells) were tested, 32% U87MG, 15% U138MG, 1% A172, and 50% K562 cells were killed at an effector:target ratio of 5:1. The γδT cell-mediated killing of all three GBM cell lines was significantly enhanced by ZOL and this ZOL-enhanced killing was blocked by an anti-T cell receptor (TcR) antibody. These results indicated that TcR γδ is crucial for the recognition of ZOL-treated GBM cells by γδT cells. Since the low level killing of GBM cells by the γδT cells was enhanced by ZOL, γδT cell-targeting therapy in combination with ZOL treatment could be effective for patients with GBM.
journal_name
J Neurooncoljournal_title
Journal of neuro-oncologyauthors
Nakazawa T,Nakamura M,Park YS,Motoyama Y,Hironaka Y,Nishimura F,Nakagawa I,Yamada S,Matsuda R,Tamura K,Sugimoto T,Takeshima Y,Marutani A,Tsujimura T,Ouji N,Ouji Y,Yoshikawa M,Nakase Hdoi
10.1007/s11060-013-1258-4subject
Has Abstractpub_date
2014-01-01 00:00:00pages
31-9issue
1eissn
0167-594Xissn
1573-7373journal_volume
116pub_type
杂志文章abstract::A 9-day-old female presented with a large infra- and supratentorial medulloblastoma was treated by surgery, irradiation and chemotherapy. The infant suffered from vomit a few days after birth. She was hospitalized shortly thereafter, when head enlargement was noted. A CT scan taken on admission disclosed a large mass ...
journal_title:Journal of neuro-oncology
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更新日期:2017-03-01 00:00:00
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pub_type: 临床试验,杂志文章
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更新日期:1990-12-01 00:00:00
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更新日期:2009-01-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2010-09-01 00:00:00
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pub_type: 杂志文章
doi:10.1007/BF00163713
更新日期:1988-11-01 00:00:00
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pub_type: 杂志文章
doi:10.1007/s11060-008-9555-z
更新日期:2008-06-01 00:00:00
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pub_type: 杂志文章
doi:10.1007/s11060-014-1510-6
更新日期:2014-09-01 00:00:00
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pub_type: 杂志文章
doi:10.1023/a:1006414717891
更新日期:2000-04-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-009-0090-3
更新日期:2010-07-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-016-2139-4
更新日期:2016-08-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章,评审
doi:10.1023/b:neon.0000024215.79178.27
更新日期:2004-05-01 00:00:00
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pub_type: 杂志文章
doi:10.1023/a:1019682400415
更新日期:2002-09-01 00:00:00
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更新日期:1991-04-01 00:00:00
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更新日期:2018-06-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/BF00151242
更新日期:1991-02-01 00:00:00
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pub_type: 杂志文章
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更新日期:2020-05-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章,评审
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pub_type: 杂志文章,评审
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pub_type: 杂志文章,随机对照试验
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更新日期:2015-09-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章
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更新日期:2015-09-01 00:00:00