摘要
目的:研究六亚甲基二乙酰胺(HMBA)诱导人粘液表皮样癌(MEC-1)细胞分化与细胞P53蛋白表达和细胞增殖周期的关系。方法:MTT比色法测定HMBA对MEC-1细胞体外生长的作用;Feulgen染色测定细胞DNA含量;ABC免疫酶染色检测P53蛋白;FCM法测定细胞增殖周期。结果:HMBA对MEC-1细胞的生长抑制作用呈剂量依赖性和时间依赖性;HMBA诱导的细胞与对照细胞比较,DNA含量减少,P53蛋白水平降低,G1期细胞数增加和S期细胞数减少。结论:HMBA对MEC-1细胞的诱导分化作用与其调节P53基因蛋白表达和细胞增殖周期有关。
Objective:To investigate the relationship
between the differentiation of the mucoepidermoid carcinoma cell line MEC 1 induced by HMBA
and the expression of P53 protein.Methods: Effects of HMBA on the growth of MEC 1 cells in
vitro were measured with MTT colorimetric assay, and the content of DNA in cells was assayed
by using Feulgen's staining. The P53 protein expression of MEC 1 cells was detected with ABC
immunohistochemistry with anti mutant P53 protein antibody, and the distribution of cells in
different differentiation phase was determined by flow cytometry.Results: HMBA inhibited the
growth of MEC 1 cells in a dose dependant and time dependant manner, and HMBA treated
MEC 1 cells were arrested in the G1 phase and had a lower content of DNA and a lower level of
P53 protein compared with the control group.Conclusion:The differentiation of MEC 1 cells
induced by HMBA may be associated with the regulation of HMBA on the P53 protein
expression and the cell differentiation cycle.
出处
《华西口腔医学杂志》
CAS
CSCD
北大核心
1999年第1期17-19,共3页
West China Journal of Stomatology
基金
国家自然科学基金
关键词
粘液表皮样癌
P53蛋白
HMBA
mucoepidermoid carcinoma\ \ HMBA\ \
P53 protein\ \ cell differentiation cycle