Using genetically modified plants or animals to produce pharmaceuticals
This new application of genetic engineering takes genes, primarily of human and animal origin, and introduces them into plants or farm animals to inexpensively produce medically important substances. The premise is using plants as efficient chemical factories for producing antibodies, vaccines, blood proteins, and other therapeutically valuable proteins.
The first drugs produced by transgenic animals has been approved in the EU in August 2006. Antithrombin is a substance that blocks blood clotting and can be extracted from the milk of genetically modified goats.