William Netzer, PhD is a principal member of the
Greengard Lab at Rockefeller University in New York City . These studies were sponsored in part by Geron
Corporation.D.

authority nutrition

D., Geron's
president and chief executive officer.

aging gerontologists

walford findings

"The fact that Parkinson's Disease can strike one of the world's most
brilliant and inspirational leaders shows that no one is immune to this
dreaded disease.

ph specialties

Paul Greengard,
the labs director, won the 2000 Nobel Prize in Medicine for his discoveries of
the mechanisms of nerve cell communication and their relevance to Parkinson's
disease.----Geron
Corporation (Nasdaq:GERN ) announced today the publication of studies
demonstrating that hematopoietic stem cells (HSCs) derived from human
embryonic stem cells (hESCs) can establish hematopoiesis in mouse
models, leading to production of all major human blood cell types.

walford gerontological

"Dr.
Employing the principles of hematopoietic chimerism , hESC-derived HSCs
and the therapeutic cells would be differentiated from the same hESC
line.

understandings aging

Discussions of the latest research will help the public better understand
the Pope's condition and the difficulties known to be associated with
Parkinson's disease.
For more information please visit: http://www.

senescence ph

aging geriatrics

"
The successful establishment of hematopoiesis in vivo by
hESC-derived HSCs has a positive implication for inducing acceptance
of therapeutic grafts without need for long -term immunosuppression.

extension recommendations

The Foundation supports worldwide research into the cause and cure of
Parkinson's Disease through its Program in Molecular and Cellular Neuroscience
at The Rockefeller University in New York City.alzinfo.
Actual results may differ materially from the results anticipated in
these forward-looking statements.

preparing geriatrics

Progress is being made in our efforts to understand this
disease and help those who suffer from its debilitating effects.

This news release may contain forward-looking statements made
pursuant to the "safe harbor" provisions of the Private Securities
Litigation Reform Act of 1995.

preparing nutrition

The Michael Stern Parkinson's Research Foundation is a not -for-profit
corporation established exclusively for scientific and educational purposes.
"This work provides strong evidence that functional hematopoietic
stem cells can be derived from human embryonic stem cells," stated
Jane S.

further leonid

Lebkowski, Ph.

aging further

Dr.

ph preparing

NEW YORK, Due to the passing of his holiness Pope
John Paul II of Parkinson's disease, The Michael Stern Parkinson's Research
Foundation wishes to call attention to its current research efforts aimed at
discovering treatments for Parkinson 's and eventually a cure.

authority geriatrics

One of the
Foundation's scientists, William Netzer PhD, will be made available for
interviews." said Dr.
Greengard. When transplanted into immune deficient
mice, the hESC -derived HSCs survive and establish multi-lineage
hematopoiesis-producing human lymphocytes, red blood cells, and
myeloid cells.

gerontology gerontologists

Mickie Bhatia and his colleagues from the Krembil Center for
Stem Cell Biology and Regenerative Medicine at the Robarts Research
Institute in London, Ontario, Canada have now published studies in the
May issue of the Journal of Experimental Medicine showing that hESCs
can be differentiated into HSCs, the cells which produce all of the
cellular components of blood .
"We are particularly excited by the developments described in this
publication, especially considering the difficulties scientists have
had in the past establishing hematopoietic engraftment from mouse
embryonic stem cells," stated Thomas B.

gerontological gavrilov

The Latest Research Explained by Leading Scientist and The Pope's Battle With Parkinson's

Dr.

gavrilov longevity

These results document the potential of differentiated hESCs to
survive and establish functional tissue in vivo and have positive
implications for strategies to promote therapeutic graft acceptance
without use of long-term immunosuppression.

aging gerontologists

parkinsoninfo .org

Business Editors/Health Editors/Science Editors

MENLO PARK, Calif. Okarma , Ph.

walford extension

Administration of the hESC-derived HSCs may allow "education" of
the recipient's immune system to accept the therapeutic graft without
rejection."
Geron is a biopharmaceutical company developing and
commercializing three groups of products: i) therapeutic products for
oncology that target telomerase; ii) pharmaceuticals that activate
telomerase in tissues impacted by senescence, injury or degenerative
disease; and iii) cell-based therapies derived from its human
embryonic stem cell platform for applications in multiple chronic
diseases.

walford geriatrics

The Michael Stern Parkinson's
Research Foundation is the sister organization of the Fisher Center for
Alzheimer's Research Foundation (http: //www.org ) whose operations support a
global network of research scientists with a focus on the cause , care and cure
of Alzheimer's disease.D. Bhatia's studies have also elucidated
several key differences between hematopoietic stem cell populations
derived from human embryonic stem cells versus cord blood , providing a
series of benchmarks to enable the optimized production of
hESC-derived hematopoietic cells., M. "We are continuing to develop
hematopoietic chimerism approaches as one means to limit the need for
long-term immunosuppression for human embryonic stem cell-derived
grafts. Investors are cautioned that such
forward-looking statements in this press release regarding potential
applications of Geron's technologies constitute forward-looking
statements that involve risks and uncertainties , including, without
limitation, risks inherent in the development and commercialization of
potential products, need for future capital, reliance on
collaborators, and maintenance of our intellectual property rights.

findings geriatrics

, Geron's senior vice president of
regenerative medicine.

grimshaw walford

Additional information on potential
factors that could affect our results and other risks and
uncertainties are detailed from time to time in Geron's periodic
reports, including the quarterly report on Form 10-Q for the quarter
ended March 31, 2005.

specialties understandings

Geron Announces Publication of Studies Demonstrating Hematopoietic Stem Cells Differentiated From Human Embryonic Stem Cells Engraft and Establish Hematopoiesi

gerontologists gerontology