Protein Polymer Technologies and Windamere Venture Partners Form New Company To Develop and Commercialize Unique Product for Spinal Disc Repair

    SAN DIEGO, April 25 -- Protein Polymer Technologies, Inc. (OTC Bulletin Board: PPTI) and Windamere Venture Partners today announced the formation of a new orthopedic company, Spinal Wave, Inc., to develop and commercialize an injectable protein-based formulation for the repair of Spinal discs damaged either by injury or aging. Based on Protein Polymer's proprietary tissue adhesive technology, the product under development has potential to be an effective outpatient surgical treatment for chronic low back pain.
    Low back pain is the leading cause for healthcare expenditures in the United States and the fastest growing major segment of the orthopedic industry with a current market of $2.1 billion in revenues and a growth rate of more than 25% annually, according to a February 2001 Viscogliosi Bros., LLC, Spinal Industry Analysis Series report. The leading surgical treatments for Spinal include Spinal fusions, discectomies, and laminectomies, but the market for disc replacement and nucleus repair is expected to grow more rapidly than other treatments as new products are approved over the next five years. Within the overall Spinal market, it is estimated that the potential market for treatment or replacement of Spinal discs will surpass $1 billion by 2007.
    Incorporated in Delaware, Spinal Wave has acquired a license to Protein Polymer's technology for use in Spinal and other defined orthopedic applications. Protein Polymer received approximately 33% of the founding stock in Spinal Wave, will receive royalties on the sale of products, and retains manufacturing rights. Protein Polymer also will provide Spinal Wave with a variety of contractual R&D services. Spinal Wave will be responsible for product development, clinical testing, regulatory approvals, and commercialization. Although Spinal Wave's initial focus is the repair of Spinal discs, Spinal Wave plans to develop and acquire a broader line of orthopedic products.
    Spinal Wave is headed by Mark LoGuidice, Chairman, and David Coats, President. Mr. LoGuidice was formerly President of Sofamor Danek U.S. (now a subsidiary of Medtronic, Inc.), a leading developer of orthopedic products for the Spinal. Mr. Coats, a partner at Windamere Venture Partners, was formerly the President of Forge Medical Ventures and has held management positions in various medical products companies. J. Thomas Parmeter, PPTI's President and CEO, will join LoGuidice and Coats on the Spinal Wave Board of Directors.
    Protein polymers are synthetic proteins created ``from scratch'' through chemical DNA (gene) synthesis, and produced in quantity by bacteria through large-scale fermentation. Protein Polymers are biocompatible when used or implanted in humans, but contain no human or animal components that could potentially transmit or cause disease. As a result of the synthetic design, protein polymers are capable of combining the biological functionality of natural proteins with the chemical functionality and exceptional physical properties of synthetic polymers. Because of the modular nature of the synthetic design, protein polymer components can be assembled and reassembled into a wide variety of different materials with exceptional physical properties (such as films, fibers, adhesives, and gels), while also incorporating both chemical and biological activity as part of the final protein design. PPTI pioneered the development of the technology and now holds 20 U.S. patents on the design, composition of matter, and production of protein polymers, with corresponding international applications in major markets.

    Protein Polymer Technologies, Inc. (PPTI), is a San Diego-based company focused on developing products to improve medical and surgical outcomes. From its inception in 1988, PPTI has been a pioneer in protein polymer design and synthesis, developing an extensive portfolio of proprietary biomaterials. In addition to its tissue adhesive and sealant applications, targeted products include a urethral bulking agent for the treatment of stress urinary incontinence, a dermal contouring agent for cosmetic surgery and dermatology, scaffolds for wound healing and tissue engineering, and depots for local drug delivery.

    Windamere Venture Partners is a San Diego-based venture capital firm which provides funding and management guidance to seed-stage life sciences companies. Windamere is a satellite fund of St. Paul Venture Capital, a division of St. Paul Fire and Marine, which has in excess of $1.0 billion for investment in early stage companies. Windamere's partners have extensive operating experience in creating and leading life sciences companies, typically taking active day-to-day management roles in early-stage portfolio companies. Areas of interest include emerging pharma, biotech, medical device, and healthcare internet opportunities.

This press release may contain forward-looking statements that are based on management's expectations. Actual results could differ materially from those expressed here; further, the Company is not obligated to comment specifically on those differences. Risks associated with the Company's activities include raising adequate capital to continue operations, scientific and product development uncertainties, competitive products and approaches, continuing collaborative partnership interest and funding, regulatory testing and approvals, and manufacturing scale-up. The reader is encouraged to refer to the Company's Annual Report Form 10-KSB, and recent filings with the Securities and Exchange Commission, copies of which are available from the Company, to further ascertain the risks associated with the above statements.