Cloned cattle with various human antibodies were born in Japan

Introduction: four cattle with multiple human antibodies in their blood have been successfully cloned by researcher fukuzuka ichimo of the medical Exploration Institute of Kirin Beer Company, Japan, which is helpful for the development of new drugs Kirin Beer Co and Japan's ornithogawa University cooperated in 1997 to extract chromosomal fragments from human body and implant them into mouse nucleus, and successfully cloned mice with a human antibody in haemorrhagic serum, the Japanese current affairs news agency reported Monday On this basis, the researchers have developed artificial chromosomes containing a variety of human antibody genes, which are implanted into the fibroblast nucleus of bovine embryos, then the cells are used to cultivate cloned embryos, and then implanted into the bovine uterus Results 4 cows were born successfully Because the serum and milk of cloned cattle contain many kinds of human antibodies, they can effectively deal with many kinds of infections and human immune system diseases At the same time, they can also be used to develop drugs to kill Staphylococcus aureus and Enterococcus vancomycin At present, mouse serum containing one kind of human antibody has been used in the production of anticancer drugs If multiple human antibodies can be extracted from cloned cattle, it will change the current situation that only multiple antibodies can be extracted from human serum, so that the antibody production will be greatly improved (author:) share to feed Weibo share to: