Featured Research

from universities, journals, and other organizations

New culture dish could advance human embryonic stem cell research

Date:
June 3, 2010
Source:
University of Michigan
Summary:
A new synthetic Petri dish coating could overcome a major challenge to the advancement of human embryonic stem cell research.

A new synthetic Petri dish coating could overcome a major challenge to the advancement of human embryonic stem cell research, say University of Michigan researchers.

Related Articles


Under today's regulations, current stem cell lines have limitations in yielding human therapies because the cells have been grown on animal-based substances that don't behave in predictable ways.

"These nondefined, animal-based components create issues with the FDA (the U.S. Food and Drug Administration) and hinder clinical applications," said Joerg Lahann, associate professor of chemical engineering.

Lahann and Gary Smith, an associate professor in obstetrics and gynecology in the U-M Health System, and their co-workers built a new stem cell growth matrix that is completely synthetic and doesn't contaminate the stem cells with foreign substances that could interfere with their normal function.

A paper on the research was published online this week in Nature Biotechnology.

Today's most commonly used matrices are mouse embryonic fibroblast cells and Matrigel, which is made from mouse tumors.

"The problem is that the mouse-derived cells have batch-to-batch variability, and they secrete factors that nobody really understands. Stem cells are very sensitive to their environment," Lahann said.

The unknown factors hamper researchers' attempts to pinpoint how and under what conditions stem cells differentiate -- questions paramount to the development of future stem cell therapies.

The team tested six different polymer coatings and found that a water-soluble gel with the acronym PMEDSAH performed well when attached to the Petri dish even after 25 rounds of harvesting stem cells to grow new colonies.

"We have designed a fully synthetic, fully chemically defined hydrogel that has long-term stability and no batch-to-batch variability," Smith said. "Moreover, we have established that it can be used for long-term growth of human embryonic stem cells while maintaining all of their known normal functions.

"These include normal genetic makeup, lack of spontaneous differentiation and maintenance of pluripotency, which means they can still become any cell type of the human body. This is a perfect example of an interdisciplinary collaboration leading to information gained and future discovery of cures and improvements of human health."

Smith is also an associate professor in the departments of Molecular and Integrative Physiology and Urology, as well as director of the Reproductive Sciences Program. Lahann is also an associate professor in the departments of Materials Science and Engineering and Biomedical Engineering.

This research is funded by the National Science Foundation and the National Institutes of Health. The university is pursuing patent protection for the intellectual property and is seeking commercialization partners to help bring the technology to market.


Story Source:

The above story is based on materials provided by University of Michigan. Note: Materials may be edited for content and length.


Journal Reference:

  1. Luis G Villa-Diaz, Himabindu Nandivada, Jun Ding, Naiara C Nogueira-de-Souza, Paul H Krebsbach, K Sue O'Shea, Joerg Lahann, Gary D Smith. Synthetic polymer coatings for long-term growth of human embryonic stem cells. Nature Biotechnology, 2010; DOI: 10.1038/nbt.1631

Cite This Page:

University of Michigan. "New culture dish could advance human embryonic stem cell research." ScienceDaily. ScienceDaily, 3 June 2010. <www.sciencedaily.com/releases/2010/06/100602193425.htm>.
University of Michigan. (2010, June 3). New culture dish could advance human embryonic stem cell research. ScienceDaily. Retrieved October 24, 2014 from www.sciencedaily.com/releases/2010/06/100602193425.htm
University of Michigan. "New culture dish could advance human embryonic stem cell research." ScienceDaily. www.sciencedaily.com/releases/2010/06/100602193425.htm (accessed October 24, 2014).

Share This



More Health & Medicine News

Friday, October 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

IKEA Desk Converts From Standing to Sitting With One Button

IKEA Desk Converts From Standing to Sitting With One Button

Buzz60 (Oct. 24, 2014) — IKEA is out with a new convertible desk that can convert from a sitting desk to a standing one with just the push of a button. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com
Ebola Protective Suits Being Made in China

Ebola Protective Suits Being Made in China

AFP (Oct. 24, 2014) — A factory in China is busy making Ebola protective suits for healthcare workers and others fighting the spread of the virus. Duration: 00:38 Video provided by AFP
Powered by NewsLook.com
WHO: Millions of Ebola Vaccine Doses by 2015

WHO: Millions of Ebola Vaccine Doses by 2015

AP (Oct. 24, 2014) — The World Health Organization said on Friday that millions of doses of two experimental Ebola vaccines could be ready for use in 2015 and five more experimental vaccines would start being tested in March. (Oct. 24) Video provided by AP
Powered by NewsLook.com
Doctor in NYC Quarantined With Ebola

Doctor in NYC Quarantined With Ebola

AP (Oct. 24, 2014) — An emergency room doctor who recently returned to the city after treating Ebola patients in West Africa has tested positive for the virus. He's quarantined in a hospital. (Oct. 24) Video provided by AP
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:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

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