New tools to study the origin of embryonic stem cells

Researchers at Karolinska Institutet have identified cell surface markers specific for the very earliest stem cells in the human embryo. These cells are thought to possess great potential for replacing damaged tissue but ...

Unearthing King Tet: Key protein influences stem cell fate

Take a skin cell from a patient with Type 1 diabetes. Strip out everything that made it a skin cell, then reprogram it to grow into a colony of pancreatic beta cells. Implant these into your patient and voilĂ ! She's producing ...

Understanding X-chromosome silencing in humans

Researchers have discovered new insights into how one of the two X-chromosomes is silenced during the development of female human embryos and also in lab-grown stem cells. X-chromosome silencing is essential for proper development ...

Embryonic development in slow motion

Roe deer are among the few mammals whose embryos go into a particularly long period of dormancy. Using modern molecular methods, ETH Zurich researchers have shown for the first time exactly what happens to the embryo during ...

SKorea seeks jail for disgraced cloning scientist

(AP) -- Prosecutors demanded a four-year prison term Monday for a South Korean scientist disgraced in a cloning scandal that shook the international scientific community and led to his trial on fraud and other charges.

How plants put down roots

In the beginning is the fertilized egg cell. Following numerous cell divisions, it then develops into a complex organism with different organs and tissues. The largely unexplained process whereby the cells simply "know" the ...

Flexible adult stem cells, right there in your eye

In the future, patients in need of perfectly matched neural stem cells may not need to look any further than their own eyes. Researchers reporting in the January issue of Cell Stem Cell, a Cell Press publication, have identified ...

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