PMID- 12956933 OWN - NLM STAT- MEDLINE DCOM- 20040210 LR - 20121115 IS - 1671-4083 (Print) IS - 1671-4083 (Linking) VI - 24 IP - 9 DP - 2003 Sep TI - Analysis of triptolide-regulated gene expression in Jurkat cells by complementary DNA microarray. PG - 864-72 AB - AIM: To investigate the global gene expression profile changes in Jurkat cells after triptolide treatment in order to find the possible triptolide targets. METHODS: Jurkat cells were treated with or without triptolide 10 microg/L for 2 h. Total RNA were isolated and used as templates for reverse transcriptional labeling of fluorescent cDNA probes. High density DNA microarray chips with a set of 13,872 human genes/Ests were used to generate the expression profile of triptolide-treated or untreated control Jurkat cells by hybridizing with fluorescent labeled probes. Array image was acquired and analyzed with array analyzing software GeneSpring. RESULTS: Triptolide significantly suppressed expression of 117 genes in Jurkat cells. Among these 117 genes, 30 % were Ests or genes without known functions, 13 % were transcription factors, 9 % were signal transduction pathway regulators, and 9 % were DNA binding proteins. Notably, the expression of mitogen-activated protein kinase kinase kinase kinase 5 (MAP kinase 5) and phosphoinositide-3-kinase (PI-3 kinase) was inhibited more than 100-fold. Moreover, the expression of genes involved in lipid transportation and metabolism was down-regulated by triptolide. CONCLUSION: High-density microarray provided an effective approach to identify drug targeting molecules. It is suggested that the widely known immune suppressive and antitumor effects of triptolide were mediated at least in part by suppression of MAP kinase and PI-3 kinase gene expression. FAU - Du, Ze-Ying AU - Du ZY AD - Department of Pharmacology, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China. FAU - Li, Xiao-Yu AU - Li XY FAU - Li, Yuan-Chao AU - Li YC FAU - Wang, Shun-You AU - Wang SY LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Acta Pharmacol Sin JT - Acta pharmacologica Sinica JID - 100956087 RN - 0 (Antineoplastic Agents, Phytogenic) RN - 0 (Diterpenes) RN - 0 (Epoxy Compounds) RN - 0 (Immunosuppressive Agents) RN - 0 (Phenanthrenes) RN - 0 (RNA, Messenger) RN - 19ALD1S53J (triptolide) RN - EC 2.7.1.- (Phosphatidylinositol 3-Kinases) RN - EC 2.7.11.25 (MAP Kinase Kinase Kinase 5) RN - EC 2.7.11.25 (MAP Kinase Kinase Kinases) RN - EC 2.7.11.25 (MAP3K5 protein, human) SB - IM MH - Antineoplastic Agents, Phytogenic/*pharmacology MH - Diterpenes/isolation & purification/*pharmacology MH - Epoxy Compounds MH - Gene Expression Regulation/*drug effects MH - Humans MH - Immunosuppressive Agents/pharmacology MH - Jurkat Cells MH - MAP Kinase Kinase Kinase 5 MH - MAP Kinase Kinase Kinases/*biosynthesis/genetics MH - Oligonucleotide Array Sequence Analysis MH - Phenanthrenes/isolation & purification/*pharmacology MH - Phosphatidylinositol 3-Kinases/*biosynthesis/genetics MH - Plants, Medicinal/chemistry MH - RNA, Messenger/genetics MH - Tripterygium/chemistry EDAT- 2003/09/06 05:00 MHDA- 2004/02/11 05:00 CRDT- 2003/09/06 05:00 PHST- 2003/09/06 05:00 [pubmed] PHST- 2004/02/11 05:00 [medline] PHST- 2003/09/06 05:00 [entrez] PST - ppublish SO - Acta Pharmacol Sin. 2003 Sep;24(9):864-72.