Contents

25 August 2020
Vol 13, Issue 646

About The Cover

Cover image expansion

Online Cover This week features a Research Article reporting that mouse blastocysts prepare the uterus for implantation by stimulating uterine epithelial cells to release ATP, which triggers the endometrium to undergo decidualization, a process that is necessary for pregnancy and placental formation. The image shows a section of mouse uterus from the third day of pregnancy stained for the ATP receptor P2Y2 (green) and nuclei (red). [Image: Gu et al./Science Signaling]