ProtoKinetix's AAGP(TM) Preserves 100% Viable Stem Cells

ProtoKinetix, Inc. (OTCBB:PKTX - News) announced the latest cryopreservation results using mouse embryonic stem cells preserved at -80 degrees C for 2 days and rapidly thawed to assay for viability. PKTX is currently in discussion with several corporations and Research Institutes about the commercialization of AAGP(TM) in the application of cryopreservation of cell lines and we are pleased to report the following results:

Based on previous experiments using stem cells, concentrations of AAGP(TM) were varied to obtain the lowest and most optimal concentrations.

 i.)   control - 10% Dimethyl Sulfoxide (DMSO)           66% viability

 ii.)  1mg/ml of AAGP(TM) 1-J +10% DMSO                  89% viability

 iii.) 5mg/ml of AAGP(TM) 1-J + 10% DMSO                 96% viability

 iv.)  4.4mg/ml of AAGP(TM) 5-F + 10% DMSO              100% viability

These experiments clearly demonstrate that AAGP(TM) concentrations can be lowered while maintaining close to the full potential of the molecule with regards to cryopreservation. These results confirm a substantial benefit in the preservation of expensive cell lines and tissue, clearly meeting a need in research, industry and medicine.

About ProtoKinetix:

ProtoKinetix, Inc. is a Biotechnical Company dedicated to the development of a family of synthetic antifreeze glycoproteins (AAGP(TM)) for human and veterinary medicine and the biotechnology and cosmetic industries. Using previously published research on native antifreeze proteins and antifreeze glycoproteins as a guide, and coordinating a vast pool of world-recognized intellectual talent in a networked environment, PKTX is conducting rapid and meaningful research with a view to developing markets for this very useful family of molecules. Sign up for free automatic email news alerts at our new website at: www.protokinetix.com

The Private Securities Litigation Reform Act of 1995 provides a "safe harbor" for forward-looking statements. Some information included in this press release contains statements that are forward looking. Such forward-looking information involves significant risks and uncertainties that could affect anticipated results in the future and, accordingly, these results may differ materially from those expressed in any forward-looking statements made by or on behalf of the Company. For a description of additional risks and uncertainties, please refer to the Company's filings with the Securities and Exchange Commission.

ProtoKinetix, Inc.

Blair Henderson, 604-687-9887

Source: ProtoKinetix, Inc.