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Wound healing without scar tissue

10.01.2017

Scar tissue is made up of cells that are different from normal skin cells. It contains the most myofibroblasts, and they help the formation of scar tissue. It does not have fat cells or hair follicles, which is why it looks so different from normal skin.

Scientists already knew how to stimulate the growth of hair follicles in scar tissue, and successfully performed such an operation on mice. But a new study has shown something surprising - the presence of hair follicles caused the appearance of bone morphogenetic proteins in the skin, with the help of which myofibroblasts can turn into adipocytes, fat cells that are present in normal skin. This means that both in mice and in laboratory-grown human skin, scar tissue simply does not develop. Until recently, scientists believed that myofibroblasts could not transform into other types of cells.

"The secret is to repair the hair follicles first," says study author Dr. George Kotsarellis. - "After that, the fat itself regenerates in response to signals from them."

These results could have a huge impact on the future of medicine, perhaps even a therapy that will make scars disappear altogether.

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Chinese researchers are preparing to implement innovative robotic systems and platforms to operate the National XNUMXm Aperture Spherical Radio Telescope (FAST), which is nicknamed the "Chinese Sky Eye" and is considered the world's largest single-disk radio telescope.

The joint efforts of the Guizhou Radio Astronomy Observatory and ten other scientific organizations, including the National Astronomical Observatory of the Chinese Academy of Sciences and the Harbin Institute of Technology, are aimed at developing robotic maintenance systems for the telescope.

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