The effect of PKC-delta inhibitor Rottlerin on human colon cancer cell line SW1116 and its mechanism / 中华肿瘤杂志
Chinese Journal of Oncology
; (12): 564-567, 2006.
Article
en Zh
| WPRIM
| ID: wpr-236909
Biblioteca responsable:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the effect of PKC-delta inhibitor Rottlerin on human colon cancer cells and its mechanism.</p><p><b>METHODS</b>Human colon cancer cell line SW1116 cells were treated with Rottlerin. The transcriptional level of DNA methyltransferase (Dnmt)1, Dnmt3a and Dnmt3b was detected by real-time RT-PCR. Cell cycle distribution was evaluated by flow cytometry (FCM). In addition, cellular morphological changes were examined by light microscopy.</p><p><b>RESULTS</b>PKC-delta inhibitor decreased the expression of Dnmt1, Dnmt3a mRNA, up-regulated APC, p21(WAF1) and p16(INK4A) mRNA. Demonstarted by flow cytometry, Rottlerin increased the percentage of cell cycle G0/G1 phase cell numbers (P = 0.02) and decreased the percentage of cell cycle G2/M phase cell numbers (P = 0.01). Remarkable changes of cellular morphology were observed under light microscope: The volume and cytoplasm of cells treated with Rottlerin were increased. The cell contour was not very clear, and mitotic figures were less frequently seen.</p><p><b>CONCLUSION</b>PKC-delta inhibitor Rottlerin inhibites cell division and proliferation of the colon cancer SW1116 cells through regulating DNA methylation and blocking the signaling pathway of mitogen-activated protein kinase (MAPK).</p>
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Asunto principal:
Patología
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Acetofenonas
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Farmacología
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Benzopiranos
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ARN Mensajero
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Transducción de Señal
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Regulación Neoplásica de la Expresión Génica
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Ciclo Celular
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Neoplasias del Colon
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Inhibidor p16 de la Quinasa Dependiente de Ciclina
Límite:
Humans
Idioma:
Zh
Revista:
Chinese Journal of Oncology
Año:
2006
Tipo del documento:
Article