Engineered heart muscle tissue from parthenogenetic heart muscle cells
The concept was first shown in mice and advantages were documented. Online publication in JOURNAL FOR CLINICAL INVESTIGATION on 22 February 2013.
Faster, easier and more reliable – this is stem cell researcher Prof. Dr. Wolfram-Hubertus Zimmermann’s vision when thinking of heart repair with artificial cardiac cells or artificial cardiac tissue. Prof. Zimmermann, Director of the Department of Pharmacology at the University Medical Center Göttingen, Germany, and member of the Heart Research Center Göttingen (HRCG) and his team found a new and almost natural way of creating artificial heart-repair material.
The use of stem cells is indispensable for the clinical introduction of artificial cardiac tissue. The quest for Jack-of-all-trades cells is on. In Germany, researchers are looking particularly intensively into the potential of non-embryonic stem cells. Until recently, non-embryonic stem cells, which can be generated by unisexual reproduction or “virgin birth” (parthenogenesis) from unfertilized oocytes received little attention. These cells are called parthenogenetic stem cells (PS cells).FIRST TIME WORLDWIDE
“We have shown for the first time that unfertilized oocytes are a promising starting material for the tissue engineering-based treatment of post-infarct heart failure” says Prof. Dr. Wolfram-Hubertus Zimmermann, senior author of the study: “What is important is that the method requires no embryos or genetic manipulations.”
Original publication: Michael Didié, Peter Christalla, Michael Rubart, Vijayakumar Muppala, Stephan Döker, Bernhard Unsöld, Thomas Rau, Thomas Eschenhagen, Alexander P Schwoerer, Heimo Ehmke, Udo Schumacher, Sigrid Fuchs, Claudia Lange, Alexander Becker, Tao Wen, John A Scherschel, Mark H Soonpaa, Tao Yang, Qiong Lin, Martin Zenke, Dong-Wook Han, Hans R. Schöler, Cornelia Ru-dolph, Doris Steinemann, Brigitte Schlegelberger, Steve Kattman, Alec Witty, Gor-don Keller, Loren J Field and Wolfram-Hubertus Zimmermann. Parthenogenetic Stem Cells for Tissue Engineered Heart Repair. J CLIN INVEST (2013) doi:10.1172/JCI66854.RESULTS IN DETAIL: WHAT CAN PARTHENOGENETIC STEM CELLS DO?
“The road to clinical application in patients with heart failure is still long, and we need to ensure that patients are not exposed to intolerable risks”, says Prof. Zim-mermann. “On the other hand, cell-based tissue repair offers an exciting perspec-tive not only for the treatment of patients with heart failure but possibly also for the treatment of patients with other life-threatening diseases.”
Prof. Zimmermann envisions biobanks containing stem cell lines for therapeutic use. Model calculations permit the conclusion that 80 to 100 different PS cells would be sufficient to achieve tissue repair without the need for additional immune suppression in a population of an estimated 100 million.UNISEXUAL REPRODUCTION (PARTHENOGENESIS)
The Heart Research Center Göttingen (HRCG) was founded in 2010 from within the research focus “Heart Failure and Regeneration” at the University Medical Center Göttingen. Basic and clinical researchers are equally represented at the HRCG, which combines the collaborative efforts of the Heart Center Göttingen at the UMG, the Max Planck Institute (MPI) for Experimental Medicine, the MPI for Biophysical Chemistry, the MPI for Dynamics and Self-Organization and the German Primate Center (DPZ). The close collaboration between clinicians and basic researchers offers the unique opportunity to translate basic research results promptly into clinical practice. This objective is pursued by researchers of the HRCG as well as by partners at the German Center for Cardiovascular Research (Deutsches Zentrum für Herzkreislaufforschung, DZHK).FURTHER INFORMATION
Stefan Weller | idw
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