Tag Archives: testis
Vitellogenin (VTG) is an estrogen-dependent, females-specific yolk precursor protein naturally synthesized during the reproductive period in the liver of oviparous vertebrates. Released in blood, VTG is taken from the growing oocytes by micropinocytosis and used as nourishment
Gonad development requires the integration of multiple cell types of various origins. Testis development in particular depends on the crucial step of vascular endothelial cell migration from the mesonephros (the embryonic kidney) into the neighboring gonad tissue.