Cytobine-induced killer cells promote apoptosis of human liver cancer stem cells / 中国组织工程研究
Chinese Journal of Tissue Engineering Research
;
(53): 2033-2039, 2016.
Article
in Chinese
| WPRIM
| ID: wpr-486170
ABSTRACT
BACKGROUND:
Immunotherapy with autologous immune cel s has been developed as a major adjuvant therapy for malignant tumors, but its mechanism of action has not been elucidated.OBJECTIVE:
To investigate the relationship between cytokine-induced kil er cel secretion and apoptosis in human liver cancer stem cel s.METHODS:
Human liver cancer stem cel s, HepG2 cel s, were isolated and enriched using serum-free suspension method. The peripheral blood mononuclear cel s from patients with liver cancer were induced byγ-interferon, CD3 monoclonal antibody and recombinant human interleukin-2 to form kil er cel s. Passage 1 liver cancer stem cel s were divided into control group (culture alone) and experimental group (co-culture of cytokines-induced kil er cel s and human liver cancer stem cel s). At 48 hours after culture, apoptosis in human liver cancer stem cel s was detected using flow cytometry, and expression of caspase-3 mRNA and protein was detected using RT-PCR and western blot, respectively. RESULTS ANDCONCLUSION:
The apoptotic rate in the control group was significantly lower than that in the experimental group (P<0.05). The expressions of caspase-3 at mRNA and protein levels were both higher in the experimental group than the control group (P<0.05). Experimental findings show that cytokines-induced kil er cel s can significantly promote apoptosis in human liver cancer stem cel s, and up-regulate the caspase-3 mRNA and protein expressions dramatical y.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Tissue Engineering Research
Year:
2016
Type:
Article
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