Scientists successfully create blood from skin cells

Development could pave way for improved therapeutics for patients with immune disorders

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Researchers in Singapore have artificially generated new mouse blood and immune cells from skin cells. This is a significant first step towards the eventual goal: the engineering of new human blood cells from skin cells or other artificial sources.

One of the major challenges of regenerative medicine is to manufacture new blood and immune cells for patients in need. This development could lead to a robust source of new blood or immune cells becoming available to treat patients with immune disorders and other such diseases, or those who require blood transfusions.

While there were previous efforts to generate new mouse blood cells from skin cells, the yielded cells could last only two weeks once injected back into mice. In contrast, the artificially skin-derived blood cells in this study can last for multiple months in mice. Published in scientific journal Nature Communications, this study was led by researchers from A*STAR's Genome Institute of Singapore (GIS) and Institute of Molecular and Cell Biology (IMCB).

To date, the researchers have identified a cocktail of four factors that can convert mouse skin cells into different types of blood cells. By introducing the four factors that are normally active in blood cells into skin cells, they could artificially 'rewrite' skin cells to adopt features of blood cells.

"On the face of it, skin cells and blood cells couldn't be more different from one another. We have been interested in whether it might be possible to rewrite the identity of cells, specifically to turn skin into blood," said the study's first author Dr Cheng Hui, who initiated this project as a postdoctoral fellow at GIS.

 

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