Induction of dendritic cells with multidrug resistance from K562/MDR1 cells / 浙江大学学报·医学版
Journal of Zhejiang University. Medical sciences
;
(6): 489-494, 2011.
Article
in Chinese
| WPRIM
| ID: wpr-247225
ABSTRACT
<p><b>OBJECTIVE</b>To induce the differentiation of K562/MDR1 cells into dendritic cells (DC) with multidrug resistance property.</p><p><b>METHODS</b>K562/MDR1 cells and K562 cells were cultured in the presence of GM-CSF and IL-4 to generate DC and matured by TNF-α. On d14 K562/MDR1-DC and K562-DC cells were harvested and the expressions of CD1a, CD83, CD80, CD86, HLA-ABC and HLA-DR were assessed by flow cytometry (FCM). The antigen presentation function of K562/MDR1-DC and K562-DC was determined by allogenic mixed lymphocyte reaction (Allo-MLR). The expression of P-glycoprotein and the intracellular accumulation of daunorubicin (DNR) were detected by FCM. The sensitivity of K562/MDR1-DC and K562-DC cell to vincristine, adriamycin was measured using MTT assay.</p><p><b>RESULTS</b>Both K562/MDR1 and K562 cells were differentiated into dendritic cells in the presence of cytokine cocktails, showing the morphologic and immunophenotypic characteristics of DC. K562/MDR1-DC more markedly enhanced proliferation of allogeneic lymphocytes in MLR than K562-DC. High level expression of P-glycoprotein and efflux of DNR were demonstrated in K562/MDR1-DC. K562/MDR1-DC showed multidrug resistance property, with higher IC(50) to VCR and ADM than that of K562-DCs.</p><p><b>CONCLUSION</b>K562/MDR1 cells can be differentiated into DC with the presence of cytokines, the induced K562/MDR1-DC cells express high level of P-glycoprotein and acquire the multidrug resistance property.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pharmacology
/
Dendritic Cells
/
Transfection
/
Cell Differentiation
/
Granulocyte-Macrophage Colony-Stimulating Factor
/
Interleukin-4
/
Tumor Necrosis Factor-alpha
/
ATP Binding Cassette Transporter, Subfamily B, Member 1
/
Drug Resistance, Multiple
/
K562 Cells
Limits:
Humans
Language:
Chinese
Journal:
Journal of Zhejiang University. Medical sciences
Year:
2011
Type:
Article
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