https://scholars.lib.ntu.edu.tw/handle/123456789/160564
標題: | Cytotoxic T Lymphocytes Generated by Short-Term in Vitro Tcr Stimulation in the Presence of Il-4 Are Therapeutically Effective against B16 Melanoma | 作者: | Chang, Mei-Ling Chen, Yi-Ting Su, Yu-Chia Kung, John T. |
關鍵字: | MONOCLONAL-ANTIBODY;METASTATIC MELANOMA;ANTIGEN RECEPTOR;TRANSGENIC MICE;CELL TOLERANCE;IFN-GAMMA | 公開日期: | 2003 | 卷: | v.10 | 期: | n.6 | 起(迄)頁: | 644-650 | 來源出版物: | JOURNAL OF BIOMEDICAL SCIENCE | 摘要: | P14 TCR transgenic CD8+ T cells (LCMV gp33-specific) were activated by antigen in the presence of either IL-2 or IL-2+ IL-4 to generate effector cytotoxic T lymphocytes (CTLs). The therapeutic effectiveness of such IL-2 - or IL-2 + IL-4- grown CTLs was tested in mice that had received intravenous inoculations of B16.gp33 melanoma cells 7 days previously. Administration of P14 CTLs activated by antigen + IL-2 + IL- 4 was significantly more effective at reducing melanoma colony formation in the lung than those grown in the presence of antigen + IL-2. Highly significant improvement in survival was observed with 80% of B16.gp33- inoculated mice showing long-term survival after therapy with 10 x 10(6 ) antigen + IL-2 + IL-4-activated P14 CTLs. Similar therapeutic effectiveness of antigen + IL-2 + IL-4-activated P14 CTLs against subcutaneously inoculated B16.gp33 melanoma cells was also found. There was significant reduction in P14 CD8+ T cells in the peripheral blood of B 16 .gp33-inoculated mice than in mice that did not receive B16. gp33 melanoma cells, indicating possible homing of P14 CD8+ T cells to the site of tumor growth or antigen-induced apoptotic cell death. These results may have implications in tumor therapy using CTLs grown ex vivo, especially during early stages of tumor formation. They also support the concept that the therapeutic effectiveness of CTLs can be governed by the cytokine context in which they are activated . Copyright (C) 2003 National Science Council, ROC and S. Karger AG, Basel. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/96914 |
顯示於: | 免疫學研究所 |
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