Fig. 2From: Trophoblast differentiation, invasion and hormone secretion in a three-dimensional in vitro implantation model with rhesus monkey embryosDevelopment of rhesus blastocysts embedded in Matrigel: (a) day 0 post embedding in Matrigel; (b) day 6: outgrowths and cystic structure shown; (c) day 14: extensive branch-like outgrowths extended from dense extraembryonic mass; (d) day 19; (e) day 26; (f) day 38. Over the course of development post-embedding, trophoblastic protrusions invaded into the Matrigel environment. Scale bar = 100 μmBack to article page