Protein Polymer Technologies Inc. has granted a license for useof its genetically engineered cell attachment factor, ProNectin F,to Cellco Inc.

Cellco, with headquarters in Germantown, Md., manufacturescell culture systems for growing mammalian cells for researchand pharmaceutical applications. The license grants exclusiveuse of ProNectin F for expanding modified cells in Cellco'sproducts for ex vivo cellular therapy applications.

Protein Polymer Technologies (NASDAQ:PPTI) of San Diegomanufactures ProNectin F with multiple copies of a natural cellattachment factor in an extremely tough polymer coating thatlines the cell culture capillaries so they appear "natural" to thecells.

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