Mechanisms of ultraviolet B irradiation-induced injuries in 16HBE cells / 南方医科大学学报
Journal of Southern Medical University
; (12): 57-60, 2011.
Article
in Zh
| WPRIM
| ID: wpr-267673
Responsible library:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the biological effects of ultraviolet B (UVB) irradiation on human bronchial epithelial cells (16HBE cells) and explore the possible mechanism.</p><p><b>METHODS</b>The survival rates of 16HBE cells were detected by MTT assay at 12 h after UVB irradiation at different doses (0, 10, 30, 50, 70, and 100 J/m(2)) or at 50 J/m(2) for different durations (2, 4, 8, 12, and 24 h). The DNA ladder was detected by agarose gel electrophoresis, the cell cycle changes were analyzed by flow cytometry, and the expression of nuclear factor-κB (NF-κB)/p65 protein was assayed by Western blotting following the exposures.</p><p><b>RESULTS</b>UVB irradiation of the cells resulted in lowered cell survival rates, DNA fragmentation, S phase arrest and up-regulation of NF-κB/p65 protein expression.</p><p><b>CONCLUSIONS</b>UVB irradiation can induce growth inhibition and apoptosis of 16HBE cells, in which process NF-κB protein may play a key role.</p>
Full text:
1
Index:
WPRIM
Main subject:
Radiation Effects
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Ultraviolet Rays
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Bronchi
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Cell Line
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Cell Survival
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NF-kappa B
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Apoptosis
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Cell Biology
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Endothelial Cells
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Metabolism
Limits:
Humans
Language:
Zh
Journal:
Journal of Southern Medical University
Year:
2011
Type:
Article