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Engineered Cardiac Tissue Developed to Study the Human Heart
  • USA - English


News provided by

The Mount Sinai Hospital

Feb 04, 2014, 09:00 ET

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Dr. Kevin D. Costa, Director of the Cardiovascular Cell and Tissue Engineering Laboratory at the Cardiovascular Research Center of Icahn School of Medicine at Mount Sinai.
Dr. Kevin D. Costa, Director of the Cardiovascular Cell and Tissue Engineering Laboratory at the Cardiovascular Research Center of Icahn School of Medicine at Mount Sinai.

New York, NY (PRWEB) February 04, 2014 -- When it comes to finding cures for heart disease, scientists at Icahn School of Medicine at Mount Sinai are working to their own beat. They may have developed a tissue model for the human heart that can bridge the gap between animal models and human clinical trial patients.

Mount Sinai researchers generated their engineered cardiac tissue from human embryonic stem cells with the resulting muscle having remarkable similarities to native heart muscle, including the ability to beat and contract like the human heart. This research breakthrough study was highlighted as the cover story of the February 2014 issue of The FASEB Journal.

"We hope that our human engineered cardiac tissues will serve as a platform for developing reliable models of the human heart for routine laboratory use," said lead researcher Kevin D. Costa, PhD, Associate Professor of Cardiology and Director of the Cardiovascular Cell and Tissue Engineering Laboratory at the Cardiovascular Research Center of Icahn School of Medicine at Mount Sinai.

"This could help accelerate and revolutionize cardiology research by improving the ability to efficiently discover, design, develop, and deliver new therapies for the treatment of heart disease, and by providing more efficient screening tools to identify and prevent cardiac side effects, ultimately leading to safer and more effective treatments for patients suffering from heart disease," says Dr. Costa.

The international team of researchers led by Mount Sinai created human engineered cardiac tissue, known as hECTs, within a custom bioreactor device designed to exercise the tissue and measure its contractile force throughout the culture process. Within 7-10 days, the human cardiac cells self-assembled into a three-dimensional tissue strip that beats spontaneously like natural heart muscle, and can survive a month or more for long-term experimental testing. These hECTs displayed contractile activity in a rhythmic pattern of 70 beats per minute on average, similar to the human heart.

In addition, research results show the heart tissue model responds to electrical stimulation and is able to incorporate new genetic information delivered by adenovirus gene therapy. During functional analysis, some of the responses known to occur in the natural adult human heart were also elicited in hECTs through electrical, mechanical, and pharmacological interventions, while some responses of hECTs more closely mimicked the immature or newborn human heart.

"We've come a long way in our understanding of the human heart," said Gerald Weissmann, MD, Editor-in-Chief of The FASEB Journal, "but we still lack an adequate tissue model which can be used to test promising therapies and model deadly diseases. This advance, if it proves successful over time, will beat anything that's currently available."

About the Mount Sinai Health System
The Mount Sinai Health System is an integrated health system committed to providing distinguished care, conducting transformative research, and advancing biomedical education. Structured around seven member hospital campuses and a single medical school, the Health System has an extensive ambulatory network and a range of inpatient and outpatient services—from community-based facilities to tertiary and quaternary care.

The System includes approximately 6,600 primary and specialty care physicians, 12-minority-owned free-standing ambulatory surgery centers, over 45 ambulatory practices throughout the five boroughs of New York City, Westchester, and Long Island, as well as 31 affiliated community health centers. Physicians are affiliated with the Icahn School of Medicine at Mount Sinai, which is ranked among the top 20 medical schools both in National Institutes of Health funding and by U.S. News & World Report. For more information, visit http://www.mountsinai.org/.

Find Mount Sinai on:
Facebook: http://www.facebook.com/mountsinainyc
Twitter: @mountsinainyc http://www.twitter.com/mountsinainyc
YouTube: http://www.youtube.com/mountsinainy

Lauren Woods, The Mount Sinai Hospital, +1 (212) 241-2836, [email protected]

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Video shows the beating human cardiac engineered tissue created at Icahn School of Medicine at Mount Sinai.
Video shows the beating human cardiac engineered tissue created at Icahn School of Medicine at Mount Sinai.
Video shows the beating human cardiac engineered tissue created at Icahn School of Medicine at Mount Sinai.

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