New steps forward in cell reprogramming

(PhysOrg.com) -- Harvard Stem Cell Institute (HSCI) researchers at Massachusetts General Hospital (MGH) have substantially improved the odds of successfully reprogramming differentiated cells into induced pluripotent stem ...

Maintaining the right niche for blood cell development

In your home, storing books on a bookshelf, tools in a tool box, and a broom in a broom cupboard makes it easy to access these items whenever you need them. Within the body, hematopoietic stem cells (HSCs) reside in their ...

A Prkci gene keeps stem cells in check

When it comes to stem cells, too much of a good thing isn't wonderful: producing too many new stem cells may lead to cancer; producing too few inhibits the repair and maintenance of the body.

X-ray illumination of supernova ejecta

(PhysOrg.com) -- Supernovae are the explosive deaths of massive stars, cataclysms that disburse into space the chemical elements produced by nuclear reactions inside the progenitor stars. Understanding chemical enrichment ...

Scientists develop new techniques to track how cells develop

Understanding how various cell types differentiate themselves during development is one of the fundamental questions in developmental biology. Using genome-editing tools, Harvard scientists are getting closer to finding answers.

The first evidence that a yellow supergiant became a supernova

A group of researchers led by Melina Bersten (Kavli IPMU) has presented evidence that the yellow supergiant (YSG) star found at the location of supernova SN 2011dh in the famous nearby galaxy M51 was indeed the SN progenitor, ...

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