July 23, 2008

KBP’s Geneware product to be used in HPV vaccine development

Second-generation HPV vaccine to be produced in tobacco plants

OWENSBORO , Ky. – The University of Louisville’s James Graham Brown Cancer Center has licensed technology for a second-generation vaccine against the human papillomavirus (HPV) to Advanced Cancer Therapeutics (ACT), a Louisville-based private company dedicated to bringing new anti-cancer therapies to market.

The vaccine, to be produced in tobacco plants, targets the HPV L2 protein.  Vaccines currently on the market have a different target, the L1 protein.  Second generation vaccines, based on the L2 protein, may provide broader immune protection against a greater number of the more than 200 strains of HPV at a lower cost than current vaccines.

The intellectual property, licensed to ACT through UofL’s Office of Technology Transfer, is based on research by associate professor Kenneth Palmer, professor A. Bennett Jenson and their colleagues.  Palmer conducts research at the Owensboro Cancer Research Program (OCRP), a joint venture that Owensboro Medical Health System established with UofL in February 2006.  OCRP is housed on the second floor of the Mitchell Memorial Cancer Center .

“We hope that the technology we are using to manufacture this vaccine will yield a product at a cost that will facilitate its use in resource-poor areas of the world where vaccines against HPV are most needed,” said Palmer.

“The human papillomavirus is the leading cause of cervical cancer and is increasingly being implicated in other cancers, such as those of the head and neck. As we learn more about the virus, it is becoming even more important to be able to protect people from preventable cancers by vaccinating them against this disease,” said Jenson.

In order to bring the vaccine to market quickly, ACT has also licensed exclusive rights to GENEWARE®, a technology owned by Owensboro-based Kentucky BioProcessing, LLC (KBP).  GENEWARE® uses an engineered tobacco mosaic virus to carry the L2 protein into the tobacco plant, where the plant’s natural growth reproduces the protein in larger quantities, producing the vaccine’s key ingredient in a cost-effective manner.

The current vaccine, Gardasil®, costs approximately $350 for the three-dose series.  According to the World Health Organization, about 80 percent of the world’s 500,000 annual cases of cervical cancer occur in developing countries, where neither routine screening nor the vaccine is available or affordable.

“Licensing these technologies together is extremely exciting,” said ACT President and CEO Randy Riggs. “We are committed to moving as quickly as possible in the further progression of this vaccine toward use in humans and are proud to be doing it with know-how developed right here in Kentucky.”

“Joining forces on this exciting project allows ACT, KBP and the Brown Cancer Center to leverage the business, scientific and intellectual property capabilities of three Kentucky-based entities to develop a solution to a very serious world health concern,” said Hugh Haydon, chairman for KBP. “We are proud to be part of this collaboration.”

About Kentucky BioProcessing, LLC (KPB)

KBP (www.kbpllc.com) is located in Owensboro , Kentucky and is a world leader in the expression, extraction, purification and commercial scale production of proteins and other products from plants. KBP offers clients and collaborators access to controlled plant growth facilities along with bench, pilot and full scale processing facilities capable of production under cGMP conditions. In addition to its own capabilities KBP is able to leverage the experienced staff and facilities of the Owensboro Cancer Research Program and provides linkages to the considerable plant made product expertise of the Owensboro area agriculture community and to other services offered throughout the region designed to support research, development and growth of a plant made product business cluster. 

About Geneware

The GENEWARE® system is owned by KBP and is widely recognized as one of the world’s most potent, robust and effective plant-based gene expression systems and uses a specifically altered tobacco mosaic virus as a vehicle to carry a target protein. Once this altered virus is introduced into a host  plant, the natural growth of the plant causes the protein to be reproduced in larger quantities.  Expression of antigens in plant systems offers the potential for products of appropriately-folded viral antigens under cost-effective and favorable agricultural scale conditions.

About Advanced Cancer Therapeutics (ACT)

ACT is a for-profit private company dedicated to advancing novel therapeutics for the prevention and treatment of cancer. ACT has successfully established a unique and innovative business model with the University of Louisville 's James Graham Brown Cancer Center (Brown Cancer Center ) whereby ACT is able to obtain exclusive worldwide licenses to novel cancer therapeutics discovered at Brown Cancer Center under preset business terms. ACT then fast-tracks these discoveries, including the selection process for partnership, commercialization and manufacture, to the pharmaceutical industry, and ultimately to the patients who need them. Led by Dr. Don Miller, the Brown Cancer Center employs over fifty leading scientists focused on the discovery and advancement of breakthrough cancer therapeutics for patients suffering from cancer. For more information, please visit: http://www.advancedcancertherapeutics.com.

About UofL’s James Graham Brown Cancer Center

The James Graham Brown Cancer Center is a key component of the University of Louisville 's Health Sciences Center and UofL Health Care. As the region's leading academic, research, and teaching medical center, our patients benefit from the latest medical advances, often long before they become available in non-teaching settings. The Brown Cancer Center is affiliated with the Kentucky Cancer Program and the National Cancer Institute. It is the only cancer center in the region to use a unified approach to cancer care, with multidisciplinary teams of physicians working together to guide patients through diagnosis, treatment and recovery.  For more information, please visit: http://www.browncancercenter.org.

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More on KBP

Owensboro scientists are hoping to use tobacco to fight cervical cancer. Click here to read WFIE’s report.