Selective Inhibition of IL-Gene Expression by 2Trichostatin A, a Potent Inhibitor of Mammalian Histone Deacetylase.
Year: 1996
Type: article
Abstract: During screening for inhibitors of T cell activation, we have found that trichostatin A (TSA), known as a potent inhibitor of histone deacetylase, showed selective inhibitory activity against IL-2 gene expression. From luciferase reporter experiments on human leukemic Jurkat T cells, TSA was found to inhibit the expression of the luciferase reporter gene directed by the IL-2 enhancer and promoter with a 50% inhibitory concentration value of 0.073 microM. On the other hand, TSA, at the same concentration, enhanced the expression of the luciferase reporter gene directed by the c-fos enhancer and promoter. The result of RT-PCR experiments also indicates that TSA has selective inhibitory activity against IL-2 gene expression in Jurkat cells. These results suggest that the change in chromatin structure caused by the hyperacetylation of histone might affect the regulation of IL-2 and c-fos gene expression.
Source: The Journal of Antibiotics
Institution: Kyowa Kirin (Japan)
Language: English
Subfield: Molecular Biology
Domain: Life Sciences
Open Access status: bronze
OpenAlex ID: W2104951634