Clinical Data Secures EU Patent for MDR1 – A Key Multi-Drug Resistance Gene
News Jun 30, 2008
Clinical Data, Inc. has announced that the European Patent Office has granted Patent No. 1232260 to Bernried, Germany-based Epidauros Biotechnologie AG, a wholly-owned subsidiary of Clinical Data, relating to the use of a genetic variant, or biomarker, of the gene MDR1 (also known as ABCB1), which encodes P-glycoprotein (PGP).
PGP is an efflux pump expressed in the gut and kidneys but also by tumor cells, and therefore modulates the response to medications by blocking their absorption into the body or into tumors. Classes of drugs transported by PGP include chemotherapeutics, immunosuppressants, and protease inhibitors.
Genetic testing of MDR1 variation has become an increasingly important part of many drug discovery and development efforts. The particular variant covered by the patent issued to Epidauros, C3435T, is the most common variant of MDR1, occurring in approximately 50% of Caucasians and in 20% and 40% of people of African and Asian descent, respectively.
Previous work by the International Multiple Sclerosis Genetics Consortium (IMSGC) has identified 233 genetic risk variants. However, these only account for about 20% of overall disease risk, with the remaining genetic culprits proving elusive. A new study has tracked down four of these hard-to-find genes.READ MORE
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