Sentences with phrase «more embryonic tissue»
Embryonic stem cells are pluripotent, able to create all cell types, save more embryonic tissue.
https://www.scientificamerican.com/ Not exact matches
In addition to providing an alternative to embryonic stem cells for potential use in regenerating diseased tissues, iPS cells are being used to learn more about diseases, especially diseases driven by mutated genes.
But even more far - ranging treatments may be possible with embryonic stem cells, the blank - slate cells that give rise to all organs and tissue types and that (theoretically) can repair all forms of organic damage and disease.
They propose that normal tissue becomes primed for cancer when oncogenes are activated and tumor suppressor genes are silenced or lost, but that cancer develops only when a cell in the tissue reverts to a more primitive, embryonic state and starts dividing.
Genetic scans indicated that the cells were more similar to embryonic tissue than to the original fibroblasts.
By contrast, most embryonic and induced pluripotent stem cells are more restricted in their developmental potential, able to form embryonic cell types, but not extra-embryonic tissues.
That suggests that the cells have gone beyond pluripotency and taken on some characteristics of totipotent cells, which are even more developmentally primitive and can produce not only embryonic tissues, but also the supporting tissues such as placenta.
When normal cells are transformed into cancer cells, this epithelial tissue can take on the characteristics of embryonic tissue, known as mesenchymal tissue, which is comprised of unspecialized cells that will develop, as the embryo matures, into more specialized tissues.
The new cells, which Yamanaka called induced pluripotent stem (iPS) cells, looked and behaved like embryonic stem cells, which are prized for their ability to transform themselves into almost any kind of tissue and, perhaps, someday cure disease — a more distinct possibility now that President Barack Obama has loosened restrictions on stem cell research.
Tumors were suspected to be tissues that had been triggered to become embryonic - like again, and it is now generally accepted that tumors are indeed more «embryonic» than the tissues they are derived from, due to the re-expression of embryonic - related genes.
This finding complements previous research from the University of Edinburgh and the National Institute for Medical Research which showed that embryonic stem cells can be coaxed into this spinal cord cells; however, the Cambridge researchers showed that the in the embryo - like aggregates, the structural organization is more robust and allows for the polarised growth of the tissue.
Interestingly, this state of immune tolerance is similar to what happens during pregnancy, and, more specifically, it's been found that the body's response to a tumor is very similar to its response to embryonic tissues.
It's not known what triggers the immune system to attack the embryonic stem cells, but the scientists believe it may be a protein that begins to appear on the surface of the cells as they differentiate into more - specialized tissues.
Blastoma: Tumors formed from embryonic tissue or developing cells are known as blastomas and are more common in children than adults.
Adult stem cells were once believed to be more limited than embryonic stem cells, only giving rise to the same type of tissue from which they originated.
And in a similar way you have heart tissue that's embryonic, fetal and adult, and we don't really know which type of tissue is being developed, and that needs to be worked on more specifically.