Where did the skin transplanted from burn patients come from?

Burn patients need a lot of skin transplantation. In the past, they took it from their intact skin, cut it into small pieces, and then transplanted it to a place without skin to let it proliferate and expand around. If it is a patient with 80% ~ 90% skin burn, it is not enough to use the remaining 10% ~ 20% skin transplantation. Therefore, in order to rescue burn patients, the problem of skin culture in vitro must be solved. That is, a complete piece of skin is taken from the patient and cultured on the culture medium, so that it can divide and reproduce, so that the skin area is continuously increased to meet the needs of skin grafting. Even if a piece of skin is only as big as a thumb nail, our scientists can expand it dozens or hundreds of times to ensure blood supply when transplanting the skin.

Now we have found this method of culturing skin in vitro, which is animal tissue culture. As a collection of tissues and cells, skin culture is not complicated, and the key is culture medium. Different tissue cultures need different media. For example, the culture medium of HeLa cells is very different from that of skin cells. Because the nutrition required by Hella cells is different from that required by skin cells.

Scientists took a small piece of skin from a burn patient and cultured it on a culture medium. A month later, it became a large piece of skin enough for doctors to transplant. It is reported that a burn surgeon saved 97% of the lives of two brothers with skin cultured in vitro. The skin cultured in vitro comes from itself, so there will be no rejection when transplanted into the body.