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Inhibitory effect of human mda-7/IL-24 on proliferation of lymphoma cell line Namalwa / 中国肿瘤生物治疗杂志
Chinese Journal of Cancer Biotherapy ; (6)2006.
Article in Chinese | WPRIM | ID: wpr-685646
ABSTRACT

Objective:

To investigate the inhibitory effects of melanoma differentiation associated gene-7(mda-7/IL- 24)on lymphoma cell line Namalwa in vitro and in vivo.

Methods:

Using RT-PCR,the expression of mda-7/IL-24 was examined in 10 malignant hematopoietic cell lines,including Namalwa,Raji,K562,NB4,U937,Ramous,CEM,KG1a, HL60,J6-1,etc.The coding region of mda-7/IL-24 was cloned from LPS-treated human peripheral blood mononuclear cells(PBMC)by RT-PCR,and the eukaryotic expression vector pTarget-IL-24 was constructed.The recombinant vector, after sequenced,was transfected into Namalwa cell line via lipofectamine reagent.The stable expression transfectants were selected by G418.The expression of mda-7/IL-24 mRNA and protein was verified by RT-PCR and Western blotting.MTT assay,colony forming assay,apoptosis detection,and tumorigenesis in nude mice were used to assess the effects of mda- 7/IL-24 on tumor proliferation,growth characteristics,colony forming,apoptosis,and tumorigenesis.

Results:

Expression of mda-7/IL-24 mRNA was not found in any of the 10 malignant hematopoietic cell lines and the expression of mda-7/IL- 24 mRNA and protein was found in Namalwa cells transfected with recombinant plasmid pTarget-IL-24.Significant de- crease in tumor cell viability was observed in Namalwa cells stably transfected with mda-7/IL-24,compared with control cells transfected with empty plasmid pTarget(P

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Cancer Biotherapy Year: 2006 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Cancer Biotherapy Year: 2006 Type: Article