Endometriosis is a chronic inflammatory disease which is associated with aberrant chemokine expression. We have established a three-dimensional (3D) floating collagen gel culture of human endometriotic cyst stromal cells (ECSCs) as an in vitro model of early-stage ﬁbrosis formation in endometriosis. We evaluated the gene expression profiles of 3D-cultured ECSCs using a gene expression microarray. We identified and confirmed with reverse transcription-polymerase chain reaction that mRNA levels of CXCL1, CXCL2, CXCL3, CXCL8, and CCL20 in 3D-cultured ECSCs were significantly higher than in 2D-cultured ECSCs. The protein levels of CXCL1, CXCL2, CXCL8, and CCL20 in the supernatant of 3D-cultured ECSCs were significantly higher than in 2D-cultured ECSCs. It has been suggested that the 3D-culture model of ECSCs is more suitable for in vitro endometriosis research than 2D-culture. This microarray data provides a new platform to identify the candidate genes involved in the pathogenesis of endometriosis which could be masked in conventional 2D-culture.Copyright © 2020 Elsevier B.V. All rights reserved.
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