Abstract:
:AIM:To observe the tumor inhibitory effects by transfecting IL-6 cDNA into colon cancer cell line HT-29 with retroviral vector pZIP cDNA.METHODS:Human IL-6 gene was reconstructed in retrovirus vector and transfected into incasing cells PA317 by lipofectamine mediated method, the clones of the cells transferred with hIL-6 were selected by G418,and targeted HT-29 cells were infected with the virus granules secreted from PA317 and also selected by G418.Test gene transcription and expression level by hybridization, ELISA and MTT assay,etc. Analyze tumor inhibitory effects according to the cell growth curve, plating forming rate and tumorigenicity in nude mice.RESULT:Successfully constructed and transfected recombinant expressing vectors pZIPIL-6 cDNA and got positive transfected cell lines. The colon cancer cell line (HT-29 IL-6) transfected with the hIL-6 gene by retroviral vector was estab-lished. The log proliferation period and the doubling time of this cell line was between 4 to 7 days and 2.5 days according to the direct cell count, the cell proliferation was obviously inhibited with MTT assay, the plating inhibitory rate was 50% by plating efficiency test. When HT-29 IL-6 cells were inoculated into the nude mice subcutaneously, carcinogenic activity of the solid tumor was found superior to the control group and the size of tumor was not significantly enlarged. Injection of combination virus fluid containing IL-6 gene into transplantation tumors could inhibit the growth and development of the tumor.CONCLUSION:IL-6 could inhibit the growth and proliferation of colon cancer cells by retroviral vector-mediated transduction.
journal_name
World J Gastroenteroljournal_title
World journal of gastroenterologyauthors
Xiao B,Jing B,Zhang YL,Zhou DY,Zhang WDdoi
10.3748/wjg.v6.i1.89keywords:
subject
Has Abstractpub_date
2000-02-01 00:00:00pages
89-92issue
1eissn
1007-9327issn
2219-2840journal_volume
6pub_type
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doi:10.3748/wjg.v20.i48.18338
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journal_title:World journal of gastroenterology
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doi:10.3748/wjg.v23.i20.3675
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journal_title:World journal of gastroenterology
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doi:10.3748/wjg.v22.i5.1902
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abstract::Primary rectal lymphoma is a rare presentation of gastrointestinal lymphomas. Its clinical presentation is indistinguishable from that of rectal carcinoma. Although surgical resection is often technically feasible, optimal therapy for colorectal lymphoma has not yet been identified. We report a case of primary rectal ...
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doi:10.3748/wjg.v11.i3.460
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journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
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pub_type: 杂志文章,多中心研究
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更新日期:2013-11-14 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v10.i13.1890
更新日期:2004-07-01 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
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更新日期:2014-08-21 00:00:00
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doi:10.3748/wjg.v11.i23.3628
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.15.4037
更新日期:2009-08-28 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.15.4204
更新日期:2009-09-07 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v6.i6.805
更新日期:2000-12-01 00:00:00
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pub_type: 杂志文章
doi:10.3748/wjg.v16.i4.508
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pub_type: 杂志文章
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v16.i44.5642
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pub_type: 杂志文章
doi:10.3748/wjg.v13.i47.6446
更新日期:2007-12-21 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v25.i3.308
更新日期:2019-01-21 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v23.i26.4689
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v20.i10.2641
更新日期:2014-03-14 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 社论,评审
doi:10.3748/wjg.v21.i26.7988
更新日期:2015-07-14 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v20.i38.13936
更新日期:2014-10-14 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v16.i2.275
更新日期:2010-01-14 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 社论,评审
doi:10.3748/wjg.v21.i31.9239
更新日期:2015-08-21 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v16.i30.3780
更新日期:2010-08-14 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 评论,信件
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更新日期:2015-04-07 00:00:00