China successfully cultivated a group of human lactoferrin transgenic cows
Academician Li Ning of Agricultural University of China successfully developed a batch of human lactoferrin-transgenic cows. The content of recombinant human lactoferrin in the milk of these transgenic cows is the highest in the world, and has the same natural protein as iron and antibacterial agents. active. This breakthrough has laid a solid foundation for the upcoming implementation of a major project for the cultivation of new varieties of genetically modified organisms in the country.
These transgenic cows can not only produce recombinant human lactoferrin with huge application prospects on a large scale, but also can be used for the development of new infant formula powders, functional foods, and pharmaceuticals, as well as exhibiting new characteristics such as high milk protein content and resistance to mastitis. It is a good material for cultivating new varieties of dairy cows.
Human lactoferrin is a natural protein in human breast milk. It has important functions such as iron supplementation, antibacterial, anti-cancer, and immunity enhancement. It is an indispensable functional component for growth and development of infants and young children. At present, most infant formula milk powders on the market are supplemented with lactoferrin purified from milk, but biological activity is far lower than that of human lactoferrin. Since human lactoferrin is mainly present in human breast milk, it is difficult to mass-produce it by ordinary techniques.
Academician Li Ning said that gastrointestinal health milk, formula milk powder, and anti-anemia drugs that are currently functioning as recombinant human lactoferrin are undergoing clinical trials and are expected to be completed within 2 to 3 years.
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