Medical research

New blood: Tracing the beginnings of hematopoietic stem cells

Hematopoietic stem cells (HSCs) give rise to all other blood cell types, but their development and how their fate is determined has long remained a mystery. In a paper published online this week in Nature, researchers at ...

Medical research

Key to aging immune system is discovered

There's a good reason people over 60 are not donor candidates for bone marrow transplantation. The immune system ages and weakens with time, making the elderly prone to life-threatening infection and other maladies, and a ...

Medical research

Opening-up the stem cell niche

For many years scientists have been trying to unravel mechanisms that guide function and differentiation of blood stem cells, those cells that generate all blood cells including our immune system. The study of human blood ...

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