Navigation Links
Model may offer better understanding of embryonic development
Date:3/9/2010

WEST LAFAYETTE, Ind. - A mathematical model developed at Purdue University can predict complex signaling patterns that could help scientists determine how stem cells in an embryo later become specific tissues, knowledge that could be used to understand and treat developmental disorders and some diseases.

During embryonic development, proteins attach to cell receptors and start a cascade of reactions. Understanding those reactions is difficult, however, because feedback signals go back out to the proteins or other molecules along the cascade, constantly changing the reaction pattern. The outcomes of those reactions and the feedback mechanisms - or inputs - are known because they can be observed, but how the inputs lead to the outputs isn't understood.

"We want to understand how stem cells become tissue-specific so that we can manipulate that process to create cells that could be used to treat injuries and diseases," said David Umulis, a Purdue assistant professor of agricultural and biological engineering. "Using a model approach, we can simulate these complex signaling patterns to get a better handle on the process."

Umulis created a model that predicted accurate outcomes when different feedback mechanisms were inserted. His results were published in the current issue of the journal Developmental Cell.

"Fruit fly embryos are a fantastic system to peer into early development since input/output relationships are easy to observe. You have a mutation and an output, but we don't typically know what happens in the middle," he said. "Realistic model embryos proved an additional tool that can be used to aid in that understanding. Models can link that cause and effect."

The study looked at fruit fly, or drosophila, embryos during very early development to decipher what controls the differentiation of these stem cells at their proper locations. During the process, cells take on identities that later specify tissue types in the adult organism. Before directional cues dictate development, the stem cells are capable of becoming many different tissues. Using models to analyze the dynamic signals the cells are receiving may help to better understand how to control similar cells in a laboratory setting.

Umulis said his model is a sort of template to allow researchers to test a number of hypotheses before conducting actual experiments. The information garnered from realistic 3-D models can guide the process and facilitate rapid discovery.

Umulis' next step is to count the number of molecules needed to initiate specific cell responses during embryonic development. The National Institutes of Health and Purdue University funded his work.


'/>"/>

Contact: Brian Wallheimer
bwallhei@purdue.edu
765-496-2050
Purdue University
Source:Eurekalert

Related biology news :

1. Novel 3-D cell culture model shows selective tumor uptake of nanoparticles
2. A new kind of rat model
3. JILA finds flaw in model describing DNA elasticity
4. Smithsonian researchers develop models to assess wetland health
5. Prediction of RNA pseudoknots using heuristic modeling with mapping and sequential folding
6. Simulating kernel production influences maize model accuracy
7. MIT model could improve some drugs effectiveness
8. Model for the assembly of advanced, single-molecule-based electronic components developed at Pitt
9. Improving detection of nuclear smuggling goal of computer model of mechanical engineer
10. New chimeric mouse model for human liver diseases, drug testing
11. Study finds first-ever genetic animal model of autism
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/13/2016)... January 13, 2016 ... addition of the  "India Biometrics Authentication ... Forecast (2015-2020)"  report to their ... has announced the addition of the  ... - Estimation & Forecast (2015-2020)" ...
(Date:1/11/2016)... 11, 2016  higi, the leading retail and ... locations, web and mobile, today announced it has ... existing investors. --> ... further innovate higi,s health platform – its network ... – including expanding services and programs to retail ...
(Date:1/8/2016)... January 8, 2016 NXTD ), ... WorldVentures ® , a privately held leading direct seller ... Inc. 5000 fastest-growing company announced that on December ... $2 million in Nxt-ID to develop a proprietary new ... Wocket ® , a unique smart wallet that serves ...
Breaking Biology News(10 mins):
(Date:2/11/2016)... Miami (PRWEB) , ... February 11, 2016 , ... ... opening of its new stem cell treatment clinic in Quito, Ecuador. The new ... orthopedic and trauma applications to patients from around the world. , The ...
(Date:2/10/2016)... WASHINGTON , Feb.10, 2016 ASAE is ... and Association Management Companies (AMC) the option of joining ... flat annual fee determined by staff size, every employee ... to join ASAE and reap all available member benefits.   ... CAE. "Our new organizational membership options will allow organizations ...
(Date:2/10/2016)... ... February 10, 2016 , ... Benchmark Research, a fully-integrated ... of two long-standing principal investigators (PI) to the roles of Chief Medical Officer, ... , Dr. Laurence Chu, a Benchmark Research PI in the Austin office, will ...
(Date:2/10/2016)... ... 10, 2016 , ... Curoverse announced today that the open-source, ... capabilities for managing and processing genomic and health data at petabyte scale. ... and analyzing genomic data,” said Adam Berrey chief executive officer at Curoverse. “Microsoft ...
Breaking Biology Technology: