Navigation Links
SU physicist develops model for studying tissue pattern formation during embryonic development
Date:9/25/2013

A team of scientists, including M. Lisa Manning, assistant professor of physics in Syracuse University's College of Arts and Sciences, has developed a model for studying tissuespecifically how it organizes into organs and layers during embryonic development.

Their findings are the subject of a Sept. 25th article in the journal Interface (Royal Society Publishing, 2013) and may have major implications for the study of tissue pattern formation and malformation.

Central to their work was the question of whether embryonic tissue behaves more like a solid or a liquidand why.

"We found that embryonic tissue was viscoelastic, meaning that it behaved like a liquid, if you pushed on it slowly, but like a solid, if you pushed on it quickly," says Manning, who co-wrote the article with Eva-Maria Schoetz, assistant professor of biology and physics at the University of California, San Diego; and Marcos Lanio and Jared Talbot, both researchers in Princeton University's Lewis-Sigler Institute for Integrative Genomics. "A mixture of cornstarch and water also behaves that way."

Manning and her team found that viscoelasticity was the result of "glassy dynamics" in cells, caused by overcrowding. They discovered that cells within embryonic tissue were packed so tightly that they rarely movedand when they did so, they expended considerable energy to squeeze past their neighbors.

She compares this behavior to riding on a subway. "If you're on a subway train that's not very crowded, it's easy to move toward the exit and get off the train," says Manning, an expert in theoretical soft condensed matter and biological physics. "But as more people get on the train, it takes longer to pick your way past them and exit. Sometimes, if the train is jam-packed, you miss your stop completely because you can't move at all."

Experimental and simulation data from Manning's experiment, in which two "droplets" of tissue join together, in a fluid-like manner, to form a single tissue.

Using state-of-the-art imaging and image analysis techniques, Manning and her team saw that each cell was crowded by what she calls a "cage of neighbors." A simple active-matter model, which they created, has enabled them to reproduce data and make predictions about how certain changes and mutations affect embryonic development.

"This is exciting because if cells slow down or generate more sticky molecules, the tissue can turn into a solid," says Manning, adding that such alterations can trigger malformations or congenital disease. "Our results provide a framework for understanding these changes."

Manning's work is rooted in that of another Princeton scientist, the late Malcolm Steinberg, who suggested more than 50 years ago that different types of embryonic tissue behave like immiscible liquids, such as oil and water. "[This liquid-like behavior] helps tissue separate into layers and form structures, including organs," says Manning, who joined SU's faculty in 2011, after serving as a postdoctoral fellow in the Princeton Center for Theoretical Science. "This type of work is fun because it involves knowledge from lots of disciplines, from soft-matter physics and materials science to cell and developmental biology."


'/>"/>

Contact: Keith Kobland
kkobland@syr.edu
315-443-9038
Syracuse University
Source:Eurekalert

Related medicine news :

1. Prominent Cedars-Sinai medical physicist receives highest honor from distinguished association
2. York physicists offer novel insight into experimental cancer treatment
3. UT Arlington physicists tool has potential for brain mapping
4. Seeing is believing: Biologists and physicists produce revealing images of cell organization, behavior
5. UCSC physicist Alexander Sher named Pew Scholar in the Biomedical Sciences
6. Inventor and InventHelp Client Develops Medical Accessory to Aid in Elderly Mobility (MMB-2107)
7. PeopleKeys Develops HR Filtering Tools in Response to Fewer Jobs, Increased Competition in Health Care
8. UPNA develops a method that automatically delimits areas of the brain in medical images
9. McKenzie Management Develops New Tool To Measure Hidden Revenue Potential
10. InventHelp® Client Develops Better Medical Valve (DVR-579)
11. Inventor and InventHelp Client Develops Improved Packaging Design for Bottles (SAH-240)
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/28/2017)... , ... April 28, 2017 , ... ... been previously exposed to more adverse experiences than children in the general population. ... such as abuse, neglect or other family challenges. While no fault of their ...
(Date:4/28/2017)... ... April 28, 2017 , ... Early detection and ... drug safety and minimize the cost of development. In this webinar, sponsored by ... cell lines and for cardiac toxicity using induced pluripotent stem cells (iPSCs). , ...
(Date:4/28/2017)... ... ... Hawkins, Pastor and Overseer at The House of Yahweh in Abilene, Texas, has published a ... does not. Yisrayl says with so many titles and names for the Creator, it’s ... with a little Scripture, backed with a lot of research, the truth is undeniable. ...
(Date:4/28/2017)... ... April 28, 2017 , ... Intellitec Solutions announced the ... implement a Microsoft Dynamics GP solution that integrates to their PointClickCare EHR software ... in long-term care, Brooke Grove now has the capability to achieve its goal ...
(Date:4/28/2017)... ... ... Rob Lowe is a popular actor that has been in many different ... purpose as the host of the “Informed” series. The program focuses on many important ... series focuses on thyroid cancer. , Although thyroid cancer is an uncommon type of ...
Breaking Medicine News(10 mins):
(Date:4/19/2017)... , April 19, 2017 Cardiology devices segment ... projected period The Cardiology Devices segment is likely ... US$ 15 Mn in 2018 over 2017. By the end ... market valuation close to US$ 700 Mn, expanding at a ... segment dominated the Asia Pacific reprocessed ...
(Date:4/19/2017)... DALLAS , April 19, 2017  Vanderbilt University ... first patients in Nashville , Tennesse ... Lower Esophageal Sphincter Stimulation for GERD (LESS GERD) trial. ... to provide long-term reflux control by restoring normal function ... nearly 65 million people in the United ...
(Date:4/19/2017)... HANOVER, N.J. , April 19, 2017 /PRNewswire/ ... conducted by the National Heart, Lung, and Blood ... (NIH) demonstrating that 58% of patients with treatment-naïve ... six months when treated with eltrombopag at the ... 1 . The study evaluated three sequential treatment ...
Breaking Medicine Technology: