Figure 1. Neutrophil conditioned media induces AREG expression by IECs.
Intestinal enteroids were cultured with or without neutrophil conditioned media for 6 h followed by microarray analysis. (A) Hierarchical clustering of genes that were differentially (|Fold change| > 2) expressed between the two groups (n = 2). Heat map of some differentially expressed probes between the two groups (n = 2). (B) Scatterplot displaying the log2 fold change in expression between the two groups (n = 2). (C) mRNA expression levels of AREG in the enteroids were measured by qRT-PCR and normalized to GAPDH. (D) Primary IECs from either small intestines (SB) or large intestines (LB) and treated with or without neutrophil conditioned media for 6 h, and mRNA expression level of AREG measured by qRT-PCR and normalized to GAPDH. (E) mRNA expression level of AREG in the MSIE cells treated with neutrophil conditioned media (CM) for 6 h. Data are presented as mean ± SEM of three independent experiments. CM, neutrophil conditioned media; None, media alone. *P < 0.05, **P < 0.01 Student’s t test.