Nature

Self-organized amniogenesis by human pluripotent stem cells in a biomimetic implantation-like niche

Figure 1: hPSCs form squamous cysts with amnion-like morphology in an implantation-like niche. Figure 2: Development of squamous cysts from hPSCs on a synthetic, soft artificial matrix. We next ...
Business Insider

BioStem Technologies® to Debut American Amnion™ at the 2025 Desert Foot Multi-Disciplinary Limb Salvage and Wound Care Conference

POMPANO BEACH, Fla., Dec. 10, 2025 (GLOBE NEWSWIRE) -- BioStem Technologies, Inc. (OTC: BSEM), a leading MedTech company specializing in placental-derived biologics for advanced wound care, today ...
EurekAlert!

New stem cell model sheds light on human amniotic sac development

Microscopy image of a PGA at day 8 showing the early tissues supporting the embryo, including the amniotic sac and the yolk sac-like structures, surrounded by (extra-embryonic) mesoderm tissue.
insider.si.edu

Concerning the origin and development of the chorion, amnion and yolk sac--the great importance of the corona radiata cells, by Frank A. Stahl

"The present publication is the fourth of a series of five researches concerning the histology and physiology of the early ovum; 2 to 7-8th week."--p. [2] siris_sil_243108 ...