The endoderm layer destined to be primitive gut is a mosaic of earlier visceral endoderm and definitive endoderm that arises later, during gastrulation. Live imaging now reveals that in mouse embryos, ...

Definitive endoderm differentiation is crucial for generating respiratory and gastrointestinal organs including pancreas and liver. However, whether epigenetic regulation contributes to this process ...

The third type of stem cells that make up the precursors of mouse embryos has been established for the first time Stem cells that give rise to the mouse yolk sac have been isolated and cultured in the ...

Pluripotent stem cells, created from human skin or mouse ear tissue, are shown here becoming endoderm cells. The endoderm is one of the three primary germ layers that ultimately contribute to the ...

An unexpectedly versatile and regenerative stem cell in early embryos may be key to creating new effective fertility treatments, suggests a new study in mice from the University of Copenhagen. It ...

How did the gut, the skin and musculature evolve? This question concerns scientists for more than a century. Through the investigation of the embryonic development of sea anemones, a very old animal ...

How do cells turn into organs? During embryonic development, three germ layers form, known as the endoderm, the mesoderm, and the ectoderm. These germ layers give rise to different parts of the ...

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Scientists revise the current textbook knowledge about gastrulation, the formation of the basic body plan during embryonic development. Their study in mice has implications for cell replacement ...

For several years, researchers studied human embryonic stem cells (ESCs) to understand the unique features of these pluripotent cells, but on their own, they poorly resembled the complex structures ...

Summary Scientists in the Sloan Kettering Institute have combined powerful laboratory and computational techniques to analyze the earliest moments of mouse development. The results could help explain ...