EXPRESSION OF INTERLEUKIN-8 CORRELATES WITH THE METASTATIC POTENTIAL OF HUMAN-MELANOMA CELLS IN NUDE-MICE

被引:2
|
作者
SINGH, RK [1 ]
GUTMAN, M [1 ]
RADINSKY, R [1 ]
BUCANA, CD [1 ]
FIDLER, IJ [1 ]
机构
[1] UNIV TEXAS, MD ANDERSON CANC CTR, DEPT CELL BIOL, HOUSTON, TX 77030 USA
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D O I
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中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
We correlated the steady state transcription and protein secretion of interleukin 8 (IL-8) in 13 different human melanoma cell lines with their ability to grow and produce metastasis in nude mice. Highly metastatic cells expressed higher steady state levels of IL-8 mRNA transcripts than did low metastatic cells. In situ mRNA hybridization analyses confirmed the pattern of mRNA expression on a cellular level. Increased mRNA expression directly correlated with secretion of IL-8 protein as determined by enzyme-linked immunosorbent assay. Recombinant IL-8 stimulated the proliferation of low metastatic A375P cells in a dose-dependent manner, a stimulation that was abrogated by the use of a polyclonal antibody against IL-8. The data suggest that IL-8 can be an autocrine growth factor for human melanoma cells and that IL-8 is involved in melanoma metastasis.
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页码:3242 / 3247
页数:6
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