Reference Article

from Wikipedia, the free encyclopedia

Stem cell

Stem cells are primal cells found in all multi-cellular organisms.

They retain the ability to renew themselves through mitotic cell division and can differentiate into a diverse range of specialized cell types.

The three broad categories of mammalian stem cells are: embryonic stem cells, derived from blastocysts, adult stem cells, which are found in adult tissues, and cord blood stem cells, which are found in the umbilical cord.

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.

As stem cells can be grown and transformed into specialized cells with characteristics consistent with cells of various tissues such as muscles or nerves through cell culture, their use in medical therapies has been proposed.

In particular, embryonic cell lines, autologous embryonic stem cells generated through therapeutic cloning, and highly plastic adult stem cells from the umbilical cord blood or bone marrow are touted as promising candidates.

Medical researchers believe that stem cell therapy has the potential to change radically the treatment of human disease.

A number of adult stem cell therapies already exist, particularly bone marrow transplants that are used to treat leukemia.

Note: This article excerpts material from the Wikipedia article "Stem cell", which is released under the GNU Free Documentation License.

See the following related content on ScienceDaily:


Related Videos

last updated on 2014-10-02 at 5:54 am EDT

The Pros and Cons of Banking Your Baby’s Stem Cells

The Pros and Cons of Banking Your Baby’s Stem Cells

Ivanhoe (Jan. 15, 2014) Umbilical cord stem cell banking: it can be expensive and controversial, but for one family the decision to pursue cord stem cell banking saved their baby’s life. Check out the pros and cons of banking your baby’s stem cells.
Powered by NewsLook.com
Autism and Cord Blood Stem Cells: FDA Gives Green Lite for Groundbreaking Clinical Trial

Autism and Cord Blood Stem Cells: FDA Gives Green Lite for Groundbreaking Clinical Trial

MultiVu (Aug. 21, 2012) Sutter Neuroscience Institute, a recognized Center of Excellence, and CBR (Cord Blood Registry), the world's largest stem cell bank, are launching the first FDA- approved clinical trial to assess the use of a child's own cord blood stem cells to treat select patients with autism. This first-of-its-kind placebo controlled study will evaluate the ability of an infusion of cord blood stem cells to help improve language and behavior. The study is in conjunction with the Sutter Institute for Medical Research.
Powered by NewsLook.com
Stem Cell Therapy Takes Arthritis Treatment Into the Future

Stem Cell Therapy Takes Arthritis Treatment Into the Future

Reuters (Apr. 9, 2013) Doctors at Emory University in the US are testing a new stem cell therapy for people with severe arthritis. They hope that by harvesting stem cells from a patient, the potent cells will regenerate and repair areas damaged by arthritis. Ben Gruber reports.
Powered by NewsLook.com
Mice With 'MS-Like' Condition Walk After Stem Cell Treatment

Mice With 'MS-Like' Condition Walk After Stem Cell Treatment

Newsy (May 15, 2014) The mice were given human stem cells to test stem cell rejection. But instead of rejecting the human cells, the mice began to show positive reactions. Video provided by Newsy
Powered by NewsLook.com

Related Stories


Share This



Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins