Argentina produces cloned cattle with human genes

Introduction: three cloned cattle with human genes were born in pampas grassland of Argentina recently The bioengineering experiment carried out by Argentine scientists has broad prospects for biopharmaceuticals In the middle and late September, Clara, Dulce and MANSA calves were successively born in a manor in Buenos Aires Province They are the copies of Pampa (pampas), the first cloned cow in Argentina There is only one difference These three calves are transgenic cloned cattle Their cells contain human growth hormone gene A large amount of pharmaceutical proteins can be extracted from their lotions to treat children with dwarfism The synthesis of human protein has been started more than 20 years ago, but the production is very low using bacteria and cell culture According to the prediction of scientists, in six years, the demand of the world's biotechnology products will greatly exceed the production capacity The production capacity of cell culture is limited, so new methods must be found And cattle can provide vast production capacity Conservatively, a transgenic cow contains at least one gram of medicinal protein per liter of milk, and can produce 15 grams per day, about half a kilogram a month It is estimated that a transgenic cow can meet the domestic demand for human growth hormone in Argentina The experiment was carried out by biosidus of Argentina, with the participation of experts from Buenos Aires University, National Science and Technology Commission and National Institute of agriculture and animal husbandry technology Biosidus has exported human growth hormone to 30 countries, but these products are produced by bacterial culture The successful test of transgenic cloned cattle will greatly increase their production capacity If all goes well, six months later, the three calves will be stimulated by hormones to produce milk, according to the scientists who conducted the experiment, in order to confirm that the human gene implanted in the bovine embryo cells does have a role Two years later, when they are ready to produce milk, they can produce medicinal hormones Figure: five cloned cattle with one template, three of which are transgenic cattle with human genes.