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Pantarhei Bioscience discovers ovarian cancer treatment

Monday, November 14, 2011 10:52 AM

Pantarhei Bioscience, a pharmaceutical company focusing on the development of  treatments in the fields of women’s health and endocrine cancer, has reported the results of an innovative treatment strategy for ovarian cancer. 

In collaboration with professor Nafis Rahman of the University of Turku (Finland) and professor Ilpo Huhtaniemi of Imperial College London, Pantarhei Bioscience is developing the Zona Pellucida protein 3 (ZP3) antigen as immunisation strategy against ZP3 positive ovarian cancer. 

“Our results in a transgenic mouse model for granulosa cell tumors show that early preventive immunisation with recombinant human (rh) ZP3 prevented ovarian tumorigenesis, and that delayed therapeutic immunisation reduced weights of existing tumors by 86 and 75% respectively”, commented professors Rahman and Huhtaniemi. “Furthermore, liver metastases were found in controls, but none following active rhZP3 immunisation. Immunisation with rhZP3 was highly effective, as demonstrated by the induction of anti-ZP3 antibodies, as well as proliferative responses to the ZP3 antigen."

Professor Herjan Coelingh Bennink, gynecologist and founder and CEO of Pantarhei Bioscience, added “after recurrence and metastasis no treatment exists for this life threatening disease with a 5-year survival rate of only 20%. Our treatment strategy opens new options for patients having ZP3 positive ovarian cancer, which we estimate to be the case in 100% of the metastasised granulosa cell carcinomas and in 70 % of the epithelial carcinomas."

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