According to researchers, there is a common type of immunity cells that appear to be with hair growth in mice, and without these, the hair follicles simply do not react, even if they are fitted with the stem cells necessary to progress, and since the mechanism that triggers the hair growth in mice is similar to that of humans, this may be an important finding to better understand the motive behind some of the types of baldness.
There are many types of immune cells, and in this case, the subclass in question is the T regulatory cells, that largely reside in our lymph nodes, and their main function is to control inflammation over our body. There are also subtypes of T cells with specific functions residing in areas such as muscles or lung tissue, and although scientists have long been aware that both humans and mice contain several T cells located on the skin, they know little about their Functions
Since the T cells were located in a skin normally located near the hair follicles, a team from the University of California San Francisco decided to analyze the hypothesis that cells might have some influence in the hair growth, and found that not only are these cells involved, but they are also a crucial part of the hair growth process.
In mammals, hair follicles regenerate following a specific pattern, alternating between growth and rest phases. By analyzing the number of cells in mice during the different phases, the team discovered that the concentration of the immune cells is a lot higher during the rest phase.
“Our hair follicles are in a constant renewal: when the hair falls, a part of the hair follicle has to be formed again”, lead researcher Michael Rosenblum told in a news conference, and added: “It was thought that This process was integrally dependent on the stem cell process, but it seems that in fact, the stem cells play a key role on it”.
This finding may reveal crucial to the discovery of a real definitive cure for baldness, that affects so many people in the world.