Autocrine Communication 2 Cell Line 2 Cell Movement 2 Female 2 Gene Knockdown Techniques 2 Humans 2 Phagocytes 2 Pregnancy 2 Pregnancy Trimester, First 2 Protein Kinases 2 Receptors, Pituitary Adenylate Cyclase-Activating Polypeptide 2 Signal Transduction 2 Trophoblasts 2 Vasoactive Intestinal Peptide 2 autocrine effect 2 cell line 2 cell motion 2 cytology 2 female 2 first trimester pregnancy 2 gene knockdown 2 genetics 2 human 2 hypophysis adenylate cyclase activating polypeptide receptor 2 metabolism 2 phagocyte 2 pregnancy 2 protein kinase 2 signal transduction 2 trophoblast 2