{"id":3941,"date":"2022-11-08T11:15:18","date_gmt":"2022-11-08T16:15:18","guid":{"rendered":"https:\/\/ridha.wpenginepowered.com\/?p=3941"},"modified":"2022-11-08T11:15:21","modified_gmt":"2022-11-08T16:15:21","slug":"lights-on-stem-cells-human-animal-and-botanical-2","status":"publish","type":"post","link":"https:\/\/ridhacosmetiques.com\/en\/lights-on-stem-cells-human-animal-and-botanical-2\/","title":{"rendered":"Lights on stem cells : human, animal and botanical"},"content":{"rendered":"\n

By Dannica Abate, trainer at Ridha Cosmetiques<\/strong><\/p>\n\n\n\n

At a time when scientific advances in genetics are raising passions and many opinions, two words, let\u2019s face it, are commonplace in the ears of estheticians: Stem Cells.<\/strong><\/p>\n\n\n\n

What is a stem cell?<\/strong><\/p>\n\n\n\n

Stem cells are the first cells to work for the development of a human, animal or plant organism. They have the incredible ability to multiply and self-regulate indefinitely in a healthy environment; creating blood, bones and various tissues. However, their work does not stop once the growth is over. Living beings must be in constant regeneration in order to maintain optimal functioning. Because some specialized cells do not have the ability to renew or divide, stem cells come into play once again. They reconstitute cells that have been depleted or altered. They could therefore be called mother cells, essential to the process of cellular regeneration.<\/p>\n\n\n\n

There are 4 types of stem cells (SC):<\/strong><\/p>\n\n\n\n

Unipotent SCs<\/strong> (uni\/one, potent\/potency) give birth to cells identical to themselves, i.e. SC keratinocytes that produce only keratinocytes while having the ability to self-renew constantly.<\/p>\n\n\n\n

Multipotent SCs<\/strong> (multi\/many, potent\/potency) can produce multiple cell models from the same cell lineage. For example, hematopoietic SCs (blood) can generate red blood cells, white blood cells and platelets, but cannot develop muscle cells.<\/p>\n\n\n\n

Pluripotent SCs<\/strong> (pluri\/multiple, potent\/potency) are active primarily during embryonic life. At this stage, they can multiply in almost every cell in the body. They do not, however, have the power to form a whole being alone.<\/p>\n\n\n\n

Totipotent SCs<\/strong> (toti\/all, potent\/potency), also from the embryonic stage, have the capacity to generate any cell of the human body, i.e. a complete individual. They are therefore more plastic than pluripotent. Once the different tissues are made, these cells specialize themselves; we are now talking about differentiated cells.<\/p>\n\n\n\n

Stem cells and cosmetics<\/strong><\/p>\n\n\n\n

Their biological functions now brightened up, how do SCs help us to accomplish our esthetician work: to change the skin of our clients? It is important to mention that SCs can only really ensure their longevity in a healthy environment. However, the now famous enemies of the skin, stress, pollution, sun, tobacco, alcohol, inadequate food (and so on!) alter their initial programming. The goal of the use of SC in cosmetics is therefore simple: to maintain the functions and maximize the life of our SC by protecting their habitat called \u201cniche\u201d. In concrete terms, this allows us to achieve the following objectives:<\/p>\n\n\n\n