Collaboration with Pfizer to Develop Automated Pathology Systems

For immediate release

LifeSpan BioSciences Announces Collaboration with Pfizer to Develop Automated Pathology Systems

SEATTLE, WA (March 03, 2005)--LifeSpan Biosciences, Inc., today announced that they have entered into an agreement with Pfizer Inc (NYSE:PFE) to develop an automated pathology system for rapid and accurate evaluation of tissue specimens in preclinical studies.

The system developed by LifeSpan will use enhanced image capture and artificial intelligence computer analysis software to evaluate stained tissue specimens for quality and tissue abnormalities. The automated system will assist pathologists, increasing their accuracy and productivity.

"We are very pleased to have Pfizer as a partner in this important project,” said Dr. Glenna Burmer, LifeSpan's chief scientific officer. "Pfizer has a long history of innovation and in adopting new technologies. We believe that through this collaboration, LifeSpan can apply its automated pathology ALIAS system to the pharmaceutical sector to help bring safe and effective therapies to market sooner." LifeSpan is currently developing a system for automated cancer recognition, and the collaboration is an extension of its capabilities in the automated pathology area.

About LifeSpan Biosciences, Inc.
LifeSpan BioSciences is a privately held molecular pathology service and development support company located in Seattle, Washington. LifeSpan, through its advanced imaging technologies, ALIAS image capture system, and its expertise in pathology, provides key information used by the pharmaceutical and biotechnology industries to select and advance promising therapeutic candidates through the drug development process. For more information, please visit LifeSpan's web site at www.lsbio.com, or contact Joseph Brown, President and CEO, at 206/464-1554.

For additional information on LifeSpan Biosciences, please visit LifeSpan's web site at www.lsbio.com

For the USA: contact Andrew Elston, Director of Marketing, via phone at 206/374-1103, or via email at Andrew.Elston@LifeSpanBiosciences.com

For Europe: contact Dietmar Bass, Director European Sales, via phone at +49 (0) 7213 841 260 or via email at Dietmar.Bass@LifeSpanBioSciences.com

For Asia: contact Sumiko Funato, Sales and Marketing Director, via phone at +81 (0) 47 308 2204 or via email at funato@LifeSpanBioSciences.com