Progesterone mediates nongenomic signaling in Xenopus oocyte meiosis by activating a PLA2 activity that requires two membrane receptors ABDH2 and mPRß.
Secretion and fibrillogenesis of collagen-I are separately controlled molecular pathways in the fibroblast, where surprisingly endocytic recycling is required for fibril formation and is increased in fibrotic fibroblasts.