First Author | Kitayama M | Year | 2016 |
Journal | J Biol Chem | Volume | 291 |
Issue | 11 | Pages | 5817-31 |
PubMed ID | 26757815 | Mgi Jnum | J:231229 |
Mgi Id | MGI:5770019 | Doi | 10.1074/jbc.M115.685917 |
Citation | Kitayama M, et al. (2016) A Novel Nectin-mediated Cell Adhesion Apparatus That Is Implicated in Prolactin Receptor Signaling for Mammary Gland Development. J Biol Chem 291(11):5817-31 |
abstractText | Mammary gland development is induced by the actions of various hormones to form a structure consisting of collecting ducts and milk-secreting alveoli, which comprise two types of epithelial cells known as luminal and basal cells. These cells adhere to each other by cell adhesion apparatuses whose roles in hormone-dependent mammary gland development remain largely unknown. Here we identified a novel cell adhesion apparatus at the boundary between the luminal and basal cells in addition to desmosomes. This apparatus was formed by the trans-interaction between the cell adhesion molecules nectin-4 and nectin-1, which were expressed in the luminal and basal cells, respectively. Nectin-4 of this apparatus further cis-interacted with the prolactin receptor in the luminal cells to enhance the prolactin-induced prolactin receptor signaling for alveolar development with lactogenic differentiation. Thus, a novel nectin-mediated cell adhesion apparatus regulates the prolactin receptor signaling for mammary gland development. |