Establishment of hsa-mir-122 stably transfected-HepG2 cell line and its lipid metabolism characteristics / 第二军医大学学报
Academic Journal of Second Military Medical University
;
(12): 825-829, 2010.
Article
in Chinese
| WPRIM
| ID: wpr-840540
ABSTRACT
Objective:
To establish a HepG2 cell line stably overexpressing hsa-mir-122 by transfecting the HepG2 cells with pEZX-hsa-mir-122 vectors,so as to observe the influence of miR-122 on the lipid metabolism in the liver cells.Methods:
The constructed pEZX-hsa-mir-122 and pEZX-mir-control plasmids were identified by restriction enzyme digestion and the right clones by sequencing were subjected to sequencing. And the right clones by sequencing were transfected by Lipofectamine™. The transfection efficiency was assessed by green fluorescent protein expression. The stably transfected cell lines were screened by Puromycin. The expression of miR-122 was examined by real-time PCR. The inhibitory function of miR-122 was testified by Western blotting assay. Nile red was used to observe the content of lipid in HepG2 cells stably overexpressing hsa-mir-122.Results:
HepG2 cells were successfully transfected with pEZX-hsa-mir-122 and pEZX-mir-control plasmids. The precursor miRNA sequences were integrated into the genome of HepG2 cells stably overexpressing miR-122. Compared with the control HepG2 cells, the HepG2 cells overexpressing miR-122 contained more lipid in the cytoplasm.Conclusion:
The miR-122 precursor sequence can intergrate into the genome of HepG2 cells. The increase of miR-122 level in HepG2 cells can result in abnormal metabolism of lipid.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Prognostic study
Language:
Chinese
Journal:
Academic Journal of Second Military Medical University
Year:
2010
Type:
Article
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