NewslettersMesenchymal Cell News Graded BMP Signaling within Intestinal Crypt Architecture Directs Self-Organization of the Wnt-Secreting Stem Cell Niche By lbeveridge - April 11, 2023 0 Investigators showed that mRNA and chromatin profiles of abundant CD81− PDGFRAlo mouse stromal cells resembled those of trophocytes and that both populations provide crucial canonical Wnt ligands. [Cell Stem Cell] AbstractGraphical Abstract