Effects of MAP kinase inhibitors on epidermal growth factor-induced neoplastic transformation of human keratinocytes

被引：17
作者：
Mizuno, H [1 ]
Cho, YY [1 ]
Ma, WY [1 ]
Bode, AM [1 ]
Dong, ZG [1 ]
机构：
[1] Univ Minnesota, Hormel Inst, Austin, MN 55912 USA
来源：
MOLECULAR CARCINOGENESIS | 2006年 / 45卷 / 01期
关键词：
EGF; cell transformation; human keratinocyte; MAP kinase;
D O I：
10.1002/mc.20160
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
We previously reported data regarding the mechanism of neoplastic transformation in JB6 CI41 mouse skin epidermal cells. However, experimental in vitro models for studying neoplastic transformation of human cells could provide further insight into the mechanisms of human cancer development. in this study, we have established a neoplastic transformation model with HaCaT cells, a human keratinocyte cell line, and showed the usefulness of this cell line for studying the mechanisms of neoplastic transformation. Epidermal growth factor (EGF) treatment induced a dose-dependent anchorage-independent cell transformation in HaCaT cells. Furthermore, PD98059, a mitogen-activated protein (MAP) kinase/ERK kinase (MEK) inhibitor, or SP600125, c-Jun N-terminal kinase (JNK) inhibitor, decreased cell growth, EGF-induced DNA synthesis and transformation. Unlike observations in the JB6 mouse epidermal cell model, SB203580, a stress-activated protein kinase-2/p38 alpha and beta (p38) inhibitor, increased EGF-induced transformation in HaCaT cells. These results suggest that extracellular-signal regulated kinase (ERK), JNK, or p38 are implicated in EGF-induced neoplastic transformation of human cells. (c) 2005 Wiley-Liss, Inc.
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页码：1 / 9
页数：9
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