Stem cell technique makes sperm in a dish

Scientists in China have finally succeeded in creating functioning sperm from mice in the laboratory. To accomplish this feat, the researchers coaxed mouse embryonic stem cells to turn into functional sperm-like cells, which ...

Discovered: How to unlock inaccessible genes

An international team of biologists has discovered how specialized enzymes remodel the extremely condensed genetic material in the nucleus of cells in order to control which genes can be used. The discovery will be published ...

How to detect and preserve human stem cells in the lab

Human stem cells that are capable of becoming any other kind of cell in the body have previously only been acquired and cultivated with difficulty. Scientists at the Max Delbrück Center for Molecular Medicine (MDC) in the ...

Role model stem cells: How immune cells can self-renew

When our organs age or wear out, their renewal usually depends on a few stem cells in the tissue, because the vast majority of differentiated cells have lost their ability to divide and generate new cells. A German-French ...

Genetic traffic signal orchestrates early embryonic development

You are the product of metamorphosis. During the third week of your embryonic existence, fateful genetic choices were made that began to transform a tiny ball of identical stem cells into a complex organism of flesh and blood, ...

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