Featured Research

from universities, journals, and other organizations

One step closer to growing a tooth

Date:
July 19, 2012
Source:
Helsingin yliopisto (University of Helsinki)
Summary:
To build a tooth, a detailed recipe to instruct cells to differentiate towards proper lineages and form dental cells is needed. Researchers have now found a marker for dental stem cells. They showed that the transcription factor Sox2 is specifically expressed in stem cells of the mouse front tooth.

To build a tooth, a detailed recipe to instruct cells to differentiate towards proper lineages and form dental cells is needed. Researchers in the group of Professor Irma Thesleff at the Institute of Biotechnology in Helsinki, Finland have now found a marker for dental stem cells. They showed that the transcription factor Sox2 is specifically expressed in stem cells of the mouse front tooth.

Despite the development of new bioengineering protocols, building a tooth from stem cells remains a distant goal. Demand for it exists as loss of teeth affects oral health, quality of life, as well as one’s appearance. To build a tooth, a detailed recipe to instruct cells to differentiate towards proper lineages and form dental cells is needed. However, the study of stem cells requires their isolation and a lack of a specific marker has hindered studies so far.

Researchers in the group of Professor Irma Thesleff at the Institute of Biotechnology in Helsinki, Finland have now found a marker for dental stem cells. They showed that the transcription factor Sox2 is specifically expressed in stem cells of the mouse incisor (front tooth). The mouse incisor grows continuously throughout life and this growth is fueled by stem cells located at the base of the tooth. These cells offer an excellent model to study dental stem cells.

The researchers developed a method to record the division, movement, and specification of these cells. By tracing the descendants of genetically labeled cells, they also showed that Sox2 positive stem cells give rise to enamel-forming ameloblasts as well as other cell lineages of the tooth.

– Although human teeth don’t grow continuously, the mechanisms that control and regulate their growth are similar as in mouse teeth. Therefore, the discovery of Sox2 as a marker for dental stem cells is an important step toward developing a complete bioengineered tooth. In the future, it may be possible to grow new teeth from stem cells to replace lost ones, says researcher Emma Juuri, a co-author of the study.


Story Source:

The above story is based on materials provided by Helsingin yliopisto (University of Helsinki). Note: Materials may be edited for content and length.


Journal Reference:

  1. Emma Juuri, Kan Saito, Laura Ahtiainen, Kerstin Seidel, Mark Tummers, Konrad Hochedlinger, Ophir D. Klein, Irma Thesleff and Frederic Michon. Sox2 Stem Cells Contribute to All Epithelial Lineages of the Tooth via Sfrp5 Progenitors. Developmental Cell, July 19, 2012

Cite This Page:

Helsingin yliopisto (University of Helsinki). "One step closer to growing a tooth." ScienceDaily. ScienceDaily, 19 July 2012. <www.sciencedaily.com/releases/2012/07/120719132729.htm>.
Helsingin yliopisto (University of Helsinki). (2012, July 19). One step closer to growing a tooth. ScienceDaily. Retrieved September 19, 2014 from www.sciencedaily.com/releases/2012/07/120719132729.htm
Helsingin yliopisto (University of Helsinki). "One step closer to growing a tooth." ScienceDaily. www.sciencedaily.com/releases/2012/07/120719132729.htm (accessed September 19, 2014).

Share This



More Health & Medicine News

Friday, September 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Cost of Ebola

The Cost of Ebola

Reuters - Business Video Online (Sep. 18, 2014) As Sierra Leone prepares for a three-day "lockdown" in its latest bid to stem the spread of Ebola, Ciara Lee looks at the financial implications of fighting the largest ever outbreak of the disease. Video provided by Reuters
Powered by NewsLook.com
What HealthKit Bug Means For Your iOS Fitness Apps

What HealthKit Bug Means For Your iOS Fitness Apps

Newsy (Sep. 18, 2014) Apple has delayed the launch of the HealthKit app platform, citing a bug. Video provided by Newsy
Powered by NewsLook.com
U.S. Food Makers Surpass Calorie-Cutting Pledge

U.S. Food Makers Surpass Calorie-Cutting Pledge

Newsy (Sep. 18, 2014) Sixteen large food and beverage companies in the United States that committed to cut calories in their products far surpassed their target. Video provided by Newsy
Powered by NewsLook.com
Residents Vaccinated as Haiti Fights Cholera Epidemic

Residents Vaccinated as Haiti Fights Cholera Epidemic

AFP (Sep. 18, 2014) Haitians receive the second dose of the vaccine against cholera as part of the UN's vaccination campaign. Duration: 00:34 Video provided by AFP
Powered by NewsLook.com

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