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Home » News

Researchers 3D-print a functioning human heart pump in the lab

News By Aditya ChandavarkarJuly 16, 20203 Mins Read
3D Printed Heart pump
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In a groundbreaking new study, researchers at the University of Minnesota have 3D printed a functioning centimeter-scale human heart pump in the lab. The discovery could have major implications for studying heart disease, the leading cause of death in the United States killing more than 600,000 people a year. The study is published and appears on the cover of Circulation Research, a publication of the American Heart Association.

In the past, researchers have tried to 3D print cardiomyocytes, or heart muscle cells, that were derived from what are called pluripotent human stem cells. Pluripotent stem cells are cells with the potential to develop into any type of cell in the body. Researchers would reprogram these stem cells to heart muscle cells and then use specialized 3D printers to print them within a three-dimensional structure, called an extracellular matrix. The problem was that scientists could never reach critical cell density for the heart muscle cells to actually function.

In this new study, University of Minnesota researchers flipped the process, and it worked.

What the team found was that for the first time ever they could achieve the goal of high cell density within less than a month to allow the cells to beat together, just like a human heart.

“After years of research, we were ready to give up and then two of my biomedical engineering Ph.D. students, Molly Kupfer and Wei-Han Lin, suggested we try printing the stem cells first,” said Ogle, who also serves as director of the University of Minnesota’s Stem Cell Institute. “We decided to give it one last try. I couldn’t believe it when we looked at the dish in the lab and saw the whole thing contracting spontaneously and synchronously and able to move fluid.”

Ogle said this is also a critical advance in heart research because this new study shows how they were able to 3D print heart muscle cells in a way that the cells could organize and work together. Because the cells were differentiating right next to each other it’s more similar to how the stem cells would grow in the body and then undergo specification to heart muscle cells.

Compared to other high-profile research in the past, Ogle said this discovery creates a structure that is like a closed sac with a fluid inlet and fluid outlet, where they can measure how a heart moves blood within the body. This makes it an invaluable tool for studying heart function.

“We now have a model to track and trace what is happening at the cell and molecular level in pump structure that begins to approximate the human heart,” Ogle said. “We can introduce disease and damage into the model and then study the effects of medicines and other therapeutics.”

The heart muscle model is about 1.5 centimeters long and was specifically designed to fit into the abdominal cavity of a mouse for further study.

“All of this seems like a simple concept, but how you achieve this is quite complex. We see the potential and think that our new discovery could have a transformative effect on heart research,” Ogle said.

 

Aditya Chandavarkar
Aditya Chandavarkar
Website
Aditya Chandavarkar is a established entrepreneur with business interests in manufacturing, innovative technology, training and consulting. Among other activities he the Co-Founder of Indian 3D Printing Network and is a subject matter expert on 3D Printing/Additive Manufacturing with good grasp of Additive Manufacturing trends in the Region including India, APAC, Middleeast and Africa.
3D printed additive manufacturing Healthcare Heart Minnesota
Aditya Chandavarkar
  • Website

Aditya Chandavarkar is a established entrepreneur with business interests in manufacturing, innovative technology, training and consulting. Among other activities he the Co-Founder of Indian 3D Printing Network and is a subject matter expert on 3D Printing/Additive Manufacturing with good grasp of Additive Manufacturing trends in the Region including India, APAC, Middleeast and Africa.

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