HAIFA, Israel, April 29, 2013 (GLOBE NEWSWIRE) -- Pluristem Therapeutics Inc. (Nasdaq:PSTI) (TASE:PLTR), a leading developer of placenta-based cell therapies, announced today that independent researchers from the Queensland Lung Transplant Service at the University of Queensland, Australia demonstrated that following infusion of Pluristem's PLX (Placental eXpanded) cells in a human lung model of pulmonary arterial hypertension (PAH), blood flows were maintained and no adverse hemodynamic effects were noted. The findings were presented on April 25, 2013 at the 33rd Annual Meeting and Scientific Sessions of the International Society of Heart and Lung Transplantation ( ISHLT) in Montreal, Canada. The presentation and poster entitled "Safety of a Mesenchymal-like Adherent Stromal Cell (PLX-PAD) in a Human Model of Pulmonary Arterial Hypertension (PAH)" are available at Pluristem's website: http://www.pluristem.com/investors/ for the next 30 days. Zami Aberman, Pluristem's Chairman and CEO, stated, "We are pleased that independent researchers were able to demonstrate the safety of our PLX-PAD cells in this unique human lung model designed to bridge the gap between data obtained from animals and data needed to commence human studies. We look forward to the initiation of Phase I human studies for this important indication." On June 20, 2011 United Therapeutics and Pluristem entered into a licensing agreement pursuant to which United Therapeutics will develop, market and sell Pluristem's PLX-PAD cells for PAH. About the Study: Daniel C. Chambers MD et. al. from Prince Charles Hospital and the University of Queensland, Australia induced pulmonary hypertension in four human lungs that had been declined for transplantation. Supra-therapeutic doses of Pluristem's PLX-PAD cells were then infused over 15 minutes directly into the pulmonary artery. Pulmonary vascular resistance stabilized during and for the hour post PLX-PAD infusion without adverse hemodynamic manifestations. The authors concluded they have demonstrated the acute hemodynamic safety of supra-therapeutic doses of PLX-PAD cells in an ex vivo model of pulmonary arterial hypertension. About Pluristem Therapeutics Pluristem Therapeutics Inc. is a leading developer of placenta-based cell therapies. The Company's patented PLX (PLacental eXpanded) cells are a drug delivery platform that releases a cocktail of therapeutic proteins in response to a host of local and systemic inflammatory and ischemic diseases. PLX cells are grown using the company's proprietary 3D micro-environmental technology and are an "off-the-shelf" product that requires no tissue matching prior to administration.