PLX Cells to be Administered Intravenously to Humans for the First Time, Opening Potential New Fields of Applications

HAIFA, Israel I February 26, 2013 I Pluristem Therapeutics Inc. (PSTI) (TASE:PLTR), a leading developer of placenta-based cell therapies, announced today that following favorable preclinical studies, United Therapeutics Corporation intends to begin a human Phase I clinical trial in Australia using Pluristem’s PLacental eXpanded (PLX-PAD) cells in patients diagnosed with Pulmonary Arterial Hypertension (PAH) upon approval by the Australian regulatory authorities. Details of the proposed trial can be viewed at: http://www.clinicaltrials.gov/ct2/show/NCT01795950?term=United+Therapeutics+cell&rank=1

On June 20, 2011 United Therapeutics and Pluristem entered into a licensing agreement whereby United Therapeutics will develop, market and sell Pluristem’s PLX-PAD cells for PAH.

PAH is characterized by abnormally high blood pressure in the arteries of the lungs and leads to an increased workload on the right side of the heart.

In the proposed clinical trial, PLX-PAD cells will be injected intravenously (IV) into humans for the first time, opening potential new fields for PLX cells.

About United Therapeutics

United Therapeutics Corporation is a biotechnology company focused on the development and commercialization of unique products to address the unmet medical needs of patients with chronic and life-threatening conditions.

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.

Pluristem has a strong intellectual property position, company-owned GMP certified manufacturing and research facilities, strategic relationships with major research institutions and a seasoned management team. For more information, visit www.pluristem.com, the content of which is not part of this press release.

SOURCE: Pluristem Therapeutics