A analysis of antimicrobial peptide mRNA by epithelial and stromal cells. RNA was isolated as described, and the resulting cDNA was analyzed by RT-PCR for the presence of TAP, LAP, BNBD4 and DEFB5 gene transcripts as described in Materials and Methods. A representative result is shown (n = 3 epithelial, E1–3, and stromal samples, S1–3). B analysis of antimicrobial peptide mRNA expression by epithelial cells. Endometrial epithelial cells were stimulated with 1 μg/ml O55:B5 E. coli LPS for 24 h and harvested. TAP, LAP, BNBD4, DEFB5 and BBD123 mRNA was quantified as described in Materials and Methods, and the data presented as fold change relative to gene expression in control cells (n = 3) Values differ significantly from control, * P < 0.05.