Scientists find optimal age of stem cells

Biophysicists from the Moscow Institute of Physics and Technology and Vladimirsky Moscow Regional Clinical Research Institute have determined the optimal age of reprogrammed stem cells suitable for restoring heart tissue. ...

Lipid metabolism controls brain development

Neural stem cells are not only responsible for early brain development—they remain active for an entire lifetime. They divide and continually generate new nerve cells and enable the brain to constantly adapt to new demands. ...

Genetic self-activation maintains plant stem cells

Branching allows plants to occupy space in three dimensions, an innovation considered essential for their adaption. Stem cells are key to this process because they promote the establishment of new growth axes. But where do ...

Snake stem cells used to create venom-producing organoids

Organoids have become an important tool for studying many disease processes and testing potential drugs. Now, they are being used in a surprising and unexpected way: for the production of snake venom. On January 23 in the ...

Programmable nests for cells

Using DNA, small silica particles, and carbon nanotubes, researchers of Karlsruhe Institute of Technology (KIT) have developed novel programmable nanocomposites that can be tailored to various applications and programmed ...

page 1 from 21

Stem cell

Stem cells are cells found in most, if not all, multi-cellular organisms. They are characterized by the ability to renew themselves through mitotic cell division and differentiating into a diverse range of specialized cell types. Research in the stem cell field grew out of findings by Canadian scientists Ernest A. McCulloch and James E. Till in the 1960s. The two broad types of mammalian stem cells are: embryonic stem cells that are isolated from the inner cell mass of blastocysts, and adult stem cells that are found in adult tissues. In a developing embryo, stem cells can differentiate into all of the specialized embryonic tissues. In adult organisms, stem cells and progenitor cells act as a repair system for the body, replenishing specialized cells, but also maintain the normal turnover of regenerative organs, such as blood, skin or intestinal tissues.

Stem cells can now be grown and transformed into specialized cells with characteristics consistent with cells of various tissues such as muscles or nerves through cell culture. Highly plastic adult stem cells from a variety of sources, including umbilical cord blood and bone marrow, are routinely used in medical therapies. Embryonic cell lines and autologous embryonic stem cells generated through therapeutic cloning have also been proposed as promising candidates for future therapies.

This text uses material from Wikipedia, licensed under CC BY-SA