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学科主题: 临床医学
题名:
A novel, rapid strategy to form dendritomas from human dendritic cells and hepatocellular carcinoma cell line HCCLM3 cells using mature dendritic cells derived from human peripheral blood CD14+monocytes within 48 hours of in vitro culture
作者: Guan, Xin1; Peng, Ji-Run1; Yuan, Lan3; Wang, Hui2; Wei, Yu-Hua1; Leng, Xi-Sheng1
刊名: WORLD JOURNAL OF GASTROENTEROLOGY
发表日期: 2004-12-15
卷: 10, 期:24, 页:3564-3568
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Gastroenterology & Hepatology
研究领域[WOS]: Gastroenterology & Hepatology
英文摘要:

AIM: Dendritomas formed by fusing cancer cells to dendritic cells have already been applied to clinical treatment trial of several types of cancers. Dendritic cells for the fusion in most trials and experiments were from blood monocytes in standard 7-d protocol culture, which requires 5-7 d of culture with granulocyte-macrophage-colony-stimulating factor (GM-CSF) and interleukin-4 (IL-4), followed by 2-3 d of activation with a combination of proinflammatory mediators such as tumor necrosis factor alpha (TNF alpha), interleukin-1 beta (IL-1 beta), interleukin-6 (IL-6) and prostaglandin E(2) (PGE(2)). One study showed that mature monocyte-derived dendritic cells could be obtained within 48 h of in vitro culture with the same protocol as standard 7-d culture and referred to as FastDCs. Here we aimed to fuse human hepatocellular carcinoma cell line HCCLM3 cells with mature monocyte-derived dendritic cells within 48 h of in vitro culture (FastDC).

METHODS: HCCLM3 cells were cultured in RPMI 1640 with 150 mL/L fetal calf serum (FCS). CD14+monocytes from healthy human peripheral blood were purified with MACS CD14 isolation kit and cultured in six-well plates in fresh complete DC medium containing RPMI-1640, 20 mL/L heat inactivated human AB serum, 2 mmol/L L-glutamine, 100 mu g/mL gentamicin, 1 000 U/mL GM-CSF and 500 U/mL IL-4 for 24 h, then proinflammatory mediators such as TNF alpha (1 000 U/mL), IL-1 beta (10 ng/mL), IL-6 (10 ng/mL) and PGE(2) (1 mu g/mL) were supplemented for another 24 h, and thus mature FastDCs were generated. HCCLM3 cells and FastDCs were labeled with red fluorescent dye PKH26-GL and green fluorescent dye PKH67-GL respectively. After the red fluorescent-stained HCCLM3 cells were irradiated with 50 Gy, FastDCs and irradiated HCCLM3 cells were fused in 500 mL/L polyethylene glycol(PEG)+ 100 mL/L dimethyl sulfoxide (DMSO) to generate novel dendritomas. The FastDCs and novel dendritomas were immunostained with anti-CD80, anti-CD86, anti-CD83, anti-HLA-DR mAbs and analyzed by fluorescence-activated cell sorting (FACS). Novel dendritomas were nucleus-stained with Hoechst 33258 and analyzed by confocal laser scanning microscopy.

RESULTS: Mature FastDCs with highly expressed surface markers CD80, CD86, CD83 and HLA-DR were generated within 48 h in vitro. Novel dendritomas with dual red-green fluorescence were constructed fast and successfully, and FACS analysis showed that the fusion efficiency was 24.27% and the novel dendritomas expressed the same activation markers as FastDCs. Confocal laser scanning microscopy analysis showed representative images of dendritomas.

CONCLUSION: Dendritomas can be formed fast with mature FastDCs from healthy human peripheral blood monocytes (PBMC) by incubation with GM-CSF and IL-4 for 24 h and by activation with proinflammatory mediators for an additional period of 24 h. Owing to shorter time required for in vitro DCs development, the generation of these novel dendritomas reduced labor and cost. This rapid method for formation of dendritomas may represent a new strategy for immunotherapy of hepatocellular carcinoma.

语种: 英语
项目资助者: Key Program Foundation for Clinical Subject of the Ministry of Public Health, China
WOS记录号: WOS:000208099900005
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/66802
Appears in Collections:北京大学第二临床医学院_肝胆外科_期刊论文

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作者单位: 1.Peking Univ Peoples Hosp, Ctr Hepatobiliary Surg, Beijing 100044, Peoples R China
2.Peking Univ Peoples Hosp, Dept Hematol, Beijing 100044, Peoples R China
3.Peking Univ, Med & Pharmaceut Anal Ctr, Beijing 100083, Peoples R China

Recommended Citation:
Guan, Xin,Peng, Ji-Run,Yuan, Lan,et al. A novel, rapid strategy to form dendritomas from human dendritic cells and hepatocellular carcinoma cell line HCCLM3 cells using mature dendritic cells derived from human peripheral blood CD14+monocytes within 48 hours of in vitro culture[J]. WORLD JOURNAL OF GASTROENTEROLOGY,2004,10(24):3564-3568.
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