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Researchers Create Largest Map of Human Metabolism



May 7, 2013

The University of Virginia School of Medicine is participating with researchers from around the world to create the largest computer model of human metabolism to date.

Researchers believe the highly-detailed computer model will lead to a better understanding of cancer, obesity, diabetes, heart disease and many of other conditions.

The model, called Recon 2, details thousands of metabolic functions that occur within humans’ cells. By understanding these functions, their interactions and how they influence cellular activity, scientists can get the big picture of the microscopic cellular universe.

“Metabolism is central to much of our body’s function, and this model captures thousands of different metabolic processes,” explained Jason Papin, PhD, a researcher at the University of Virginia School of Medicine involved in the project. “We start with the human genome. This modeling effort is a way to functionalize the genome, a way to make value out of that sequence information. With the genome, you have a parts list, the components. What this model does is take the functions associated with those components and put them together in a mathematical way so that you can start to predict how it will behave.”

Recon 2 is by far the most complete computer representation of metabolism yet, incorporating several previous models and more than a thousand papers. It represents a collaborative effort of a substantial percentage of the top metabolism researchers from around the globe.

By bringing together so much of science’s understanding of metabolism, the researchers believe they have created a way to better understand the metabolic mistakes that cause disease, and the ability to speed future breakthroughs to battle those diseases.

“The idea would be that if a patient’s tumor becomes resistant to existing therapies, these models of metabolism can help point to new therapies or new pathways that we can target with drugs to help stop growth,” Papin said. “Cancer growth is a function of metabolism. Metabolism is there to help it grow. And we’re hoping this modeling effort will help us know how to inhibit some of those key processes.”

The researchers describe the model in a paper in the May issue of the journal Nature Biotechnology.

They have made the model freely available online, which can be viewed Viewed Here .

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