REGULATION OF ADHESION AND GROWTH OF FIBROSARCOMA CELLS BY NF-KAPPA-B RELA INVOLVES TRANSFORMING GROWTH-FACTOR-BETA

被引：40

作者：

PEREZ, JR ^{[1
]}

HIGGINSSOCHASKI, KA ^{[1
]}

MALTESE, JY ^{[1
]}

NARAYANAN, R ^{[1
]}

机构：

[1] HOFFMANN LA ROCHE INC, ROCHE RES CTR, DIV ONCOL, NUTLEY, NJ 07110 USA

来源：

MOLECULAR AND CELLULAR BIOLOGY | 1994年 / 14卷 / 08期

关键词：

D O I：

10.1128/MCB.14.8.5326

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：

The NF-kappa B transcription factor is a pleiotropic activator that participates in the induction of a wide variety of cellular genes. Antisense oligomer inhibition of the RelA subunit of NF-kappa B results in a block of cellular adhesion and inhibition of tumor cell growth. Investigation of the molecular basis for these effects showed that in vitro inhibition of the growth of transformed fibroblasts by RelA antisense oligonucleotides can be reversed by the parental-cell-conditioned medium. Cytokine profile analysis of these cells treated with RelA antisense oligonucleotides revealed inhibition of transforming growth factor beta 1 (TGF-beta 1) and granulocyte-macrophage colony-stimulating factor mRNA expression. Exogenous addition of purified TGF-beta 1 to the transformed fibroblasts reversed the inhibitory effects of RelA antisense oligomers on soft agar colony formation and cell adhesion to the substratum Direct inhibition of TGF-beta 1 expression by antisense phosphorothioates to TGF-beta 1 mimicked the in vitro effects of blocking cell adhesion that are elicited by antisense RelA oligomers. These results may explain the in vitro effects of RelA antisense oligomers on fibrosarcoma cell growth and adhesion.

引用

页码：5326 / 5332

页数：7

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