Identification of genes regulated by interleukin-1beta in human endometrial stromal cells.

Abstract

Interleukin-1beta (IL-1b) is an important immune regulatory factor that in human endometrium plays a role in both menstruation and implantation in the event of pregnancy. It promotes inflammatory-like processes and also stimulates tissue remodelling. We present a cDNA microarray study documenting the major effects of IL-1beta on gene expression in stromal cells from human endometrium. Endometrial stromal cells from five normal healthy women at the mid secretory phase were cultured with or without IL-1beta at 50 and 500 pg/ml for 48 h. cDNA microarrays were used to compare the levels of gene expression in total RNA isolated from cells stimulated with IL-1beta. These cDNA arrays were produced containing 15 164 sequence-verified clones, which included genes known to be important in angiogenesis, immune modulators, apoptosis, cell signalling, extra-cellular matrix (ECM) remodelling and cell cycle regulation. Genes which were regulated by IL-1beta were identified by analysis of the microarray data using the Significance Analysis of Microarrays software package. Upregulated (n = 23) and downregulated (n = 6) different genes were observed, which changed at least 3-fold, at a false discovery rate of less than 2% (P < 0.02). Our results have identified genes regulated by IL-1beta, which are involved in leukocyte recruitment, ECM remodelling and other cellular functions. Changes in three genes, IL-8, colony-stimulating factor 2 and aldoketo reductase family 1 member 1, which were upregulated by IL-1beta, were verified using real-time PCR. Novel functions regulated by IL-1beta in endometrium, including genes involved in free radical protection, and fatty acid metabolism were also identified. These results also provide new insights into the role of IL-1beta in disorders of the endometrium, especially in implantation-related infertility and endometriosis, in which this cytokine plays a major role.

• Authors: Marco Rossi, Andrew M Sharkey, Paola Viganò, Giovina Fiore, Rob Furlong, Pasquale Florio, Guido Ambrosini, Stephen K Smith, Felice Petraglia
• Journal: Reproduction (Cambridge, England) (Reproduction) Vol. 130 Issue 5 Pg. 721-9 (Nov 2005) ISSN: 1470-1626 [Print] England
• PMID: 16264101 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Interleukin-1
• Interleukin-8
• Granulocyte-Macrophage Colony-Stimulating Factor
• Aldehyde Reductase

Topics

• Aldehyde Reductase (genetics)
• Cells, Cultured
• Endometrium (metabolism)
• Female
• Follicular Phase (physiology)
• Gene Expression Profiling
• Gene Expression Regulation
• Granulocyte-Macrophage Colony-Stimulating Factor (genetics)
• Humans
• Interleukin-1 (metabolism)
• Interleukin-8 (genetics)
• Oligonucleotide Array Sequence Analysis
• Pregnancy
• Reverse Transcriptase Polymerase Chain Reaction
• Stimulation, Chemical
• Stromal Cells (metabolism)