Shikonin inhibits the proliferation of human airway smooth muscle cells / 南方医科大学学报
Journal of Southern Medical University
; (12): 805-807, 2008.
Article
in Chinese
| WPRIM (Western Pacific)
| ID: wpr-280092
Responsible library:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To study the inhibitory effect of shikonin on the proliferation of human airway smooth muscle cells (HASMCs) in vitro.</p><p><b>METHODS</b>HASMCs from the trachea were obtained by primary culture of the tissue explants and adherent culture. The HASMCs were exposed to shikonin at 0 (control group), 0.5, 1, 2, 5, 10, 20, and 40 micromol/L for 12, 24, and 48 h, after which the cell proliferation was assessed by 3-(4,5-carboxymethoxypheny1)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) colorimetric assay. Flow cytometry was used for cell cycle analysis of the HASMCs exposed to shikonin at 40, 20, 10, 5 micromol/L and 0 micromol/L (control group) for 24 h. Immunocytochemistry with SP method was performed to detect the expression of proliferating cell nuclear antigen (PCNA) in the HASMCs treated with shikonin at 20 micromol/L and 0 micromol/L (control group) for 24 h.</p><p><b>RESULTS</b>Shikonin at the concentrations of 20 and 40 micromol/L significantly inhibited the proliferation of the cells (P<0.05), and the effect was especially obvious after 48 h of cell exposure, with inhibition rates of 30.1% and 42.9%, respectively. No significant difference was found between the two concentrations for their cell growth inhibition effects (P>0.05). Shikonin at the concentrations of 20 and 40 micromol/L caused significant cell cycle arrest in G(0)/G(1) phase (P<0.05), the effect of which, however, was not concentration-dependent (P>0.05). Shikohin at 20 micromol/L significantly down-regulated the expression of PCNA in the cells (P<0.05).</p><p><b>CONCLUSION</b>Shikonin can inhibit the proliferation of HASMCs in vitro.</p>
Full text:
Available
Database:
WPRIM (Western Pacific)
Main subject:
Pharmacology
/
Trachea
/
Immunohistochemistry
/
Cell Cycle
/
Cells, Cultured
/
Naphthoquinones
/
Proliferating Cell Nuclear Antigen
/
Cell Biology
/
Cell Proliferation
/
Dose-Response Relationship, Drug
Limits:
Humans
Language:
Chinese
Journal:
Journal of Southern Medical University
Year:
2008
Document type:
Article