The influence of SiO2 on epithelial-mesenchymal transition (EMT) in human bronchial epithelial cells / 中华劳动卫生职业病杂志
Chinese Journal of Industrial Hygiene and Occupational Diseases
;
(12): 7-10, 2011.
Artículo
en Chino
| WPRIM
| ID: wpr-293769
ABSTRACT
<p><b>OBJECTIVE</b>To investigate SiO2-induced EMT in human bronchial epithelial cells HBE in vitro.</p><p><b>METHODS</b>HBE cells were cultured and then stimulated with indicated doses of SiO2 (0, 50, 100, 200, 300 µg/ml). The morphological changes were observed by microscope. In addition, Western blot was per-formed to detect the expression of E-cad, α-SMA and Vim. The changes of migration ability were examined by wound-healing assay in vitro.</p><p><b>RESULTS</b>(1) After exposure to SiO2, HBE cells lost contact with their neighbor and displayed a spindle-shape, fibroblast-like morphology. (2) Compared with the control, the E-cad (300 µg/ml group) expression downregulated 2.98 fold (P < 0.05), and the Vim (300 µg/ml group) and α-SMA (200 µg/ml group) expression upregulated 4.46 fold and 3.55 fold (P < 0.05). There were significant differences between 100, 200, 300 µg/ml groups and the control group (P < 0.05). (3) In the test group, the percentage of wound-healing areas/wound areas were larger than those in control group (P < 0.05).</p><p><b>CONCLUSIONS</b>SiO2 could induce EMT in human bronchial epithelial cells.</p>
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Bronquios
/
Células Cultivadas
/
Células del Estroma
/
Dióxido de Silicio
/
Biología Celular
/
Células Epiteliales
/
Transición Epitelial-Mesenquimal
Límite:
Humanos
Idioma:
Chino
Revista:
Chinese Journal of Industrial Hygiene and Occupational Diseases
Año:
2011
Tipo del documento:
Artículo
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