Morphology and microRNA expression profiles of drug-resistant cells in hepatocellular carcinoma / 中华病理学杂志
Chinese Journal of Pathology
;
(12): 604-608, 2013.
Article
in Chinese
| WPRIM
| ID: wpr-233383
ABSTRACT
<p><b>OBJECTIVE</b>To compare morphological differences of three drug-resistant hepatocellular carcinoma (HCC) cell subclones (Huh-7/ADM, Huh-7/CBP, Huh-7/MMC) and their parental Huh-7 cell line, to analyze differential microRNA (miRNA) expression profiles in these cells and, finally to screen for the abnormal expressed miRNAs in drug-resistant HCC cells.</p><p><b>METHODS</b>Cellular morphology was observed by histology and transmission electron microscopy. MiRNA microarray was used to analyze the differential miRNA expression profiles in these cells (Huh-7, Huh-7/ADM, Huh-7/CBP, Huh-7/MMC) followed by real time quantitative PCR validation.</p><p><b>RESULTS</b>The drug-resistant cells had more intracytoplasmic organelles and were larger in size along with increased cytological pleomorphism than the parental Huh-7 cells. Compared with the parental Huh-7 cells, 32 simultaneously up-regulated and 22 down-regulated miRNAs were found in three drug-resistant cells. Up-regulation of miR-15a, miR-16, miR-27b, miR-30b, miR-146a, miR-146b-5p, miR-181a, miR-181d and miR-194 was verified by RT-qPCR.</p><p><b>CONCLUSION</b>Drug-resistant HCC cells have abnormal expressed miRNAs, which may be explored to further investigate the association of miRNA expressions with multidrugs resistance in HCC.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pathology
/
Pharmacology
/
Doxorubicin
/
Carboplatin
/
Mitomycin
/
Carcinoma, Hepatocellular
/
Drug Resistance, Multiple
/
Drug Resistance, Neoplasm
/
Oligonucleotide Array Sequence Analysis
/
Gene Expression Profiling
Limits:
Humans
Language:
Chinese
Journal:
Chinese Journal of Pathology
Year:
2013
Type:
Article
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