According to foreign media reports, it is common for babies born without any scars when they are operated on in the womb. Thanks to their special skin quality, a team at Washington State University, led by assistant professor Ryan driskell, used a technique called single cell RNA sequencing to compare genes and cells in developing infant and adult skin. < / P > < p > they found that a protein called LEF1 plays a role in activating dermal papilla fibroblasts during skin development. These cells, located in the mastoid dermis, are described as “a layer of skin beneath the epidermis that gives the skin tension and a youthful appearance.” < / P > < p > for infants, this arrangement helps to control the formation of hair follicles, as their skin is still forming. Once the skin is fully formed, the body “repels” LEF1. That’s why adults have scars, and there are no hair follicles in the scar tissue. In other words, driskell’s team was able to reactivate dormant LEF1 in specific skin cells of adult mice. As a result, the scars on the wounds of these animals were significantly reduced, so that their regenerated skin contained hair follicles that could produce goose bumps. < / P > < p > although more work needs to be done before the results can be applied to the treatment of human wounds, this study is still attractive. “We can take advantage of the innate regenerative ability of new skin and transplant it to old skin,” driskell said. We have shown in principle that this regeneration is possible. ” Global Tech