![]() ![]() These germ layers later differentiate to form tissues and organs in the human body. ![]() These layers of cells form as an embryo develops. Other examples are cells that come from the three germ layers called the mesoderm, endoderm, and ectoderm germ layers. A popular example of pluripotent cells is embryonic stem cells. Pluripotent stem cells are the next most powerful, as they have the ability to differentiate into almost all cell types. Around four days post-fertilization, these cells start differentiating into pluripotent stem cells. A newly fertilized egg-also called a zygote-is an example of a totipotent stem cell, and these cells can generate an entire living organism. Totipotent stem cells are the most powerful, as they can differentiate into any cell in the human body. The five types of stem cells-on the basis of potential differentiation-are as follows: Stem cells are traditionally classified by their ability to differentiate into various cell types. We only talked about adult stem cells and embryonic stem cells, as those two types of stem cells are widely used in research and stem cell therapy. In a previous blog, we discussed the very basics of stem cells and their application in stem cell therapy. There are many different types of stem cells and they are the foundation for every organ and tissue. They are undifferentiated cells that can differentiate into any of the more than 200 different cell types in our body. Though common, this is a limiting classification because not every stem cell is an adult or embryonic stem cell. Stem cells can actually be classified further based on their differentiation potential.įor a quick refresher, stem cells are a naturally occurring group of cells found in both the developing and adult human body. ![]() These two types of stem cells are classified based off of their source. Learn more about different types of stem cells here.Many have heard of the two primary types of stem cells: adult stem cells and embryonic stem cells. The stem cells that stay in your body throughout your life are tissue-specific, and there is evidence that these cells change as you age, too – your skin stem cells at age 20 won’t be exactly the same as your skin stem cells at age 80. Pluripotent cells give rise to the specialized cells that make up the body’s organs and tissues. Totipotent cells are no longer present after dividing into the cells that generate the placenta and umbilical cord. Other cells are multipotent, meaning they can generate a few different cell types, generally in a specific tissue or organ.Īs the body develops and ages, the number and type of stem cells changes.
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