转基因牛,埃博拉抗体 z-bo 2020-08-19 607

　　There is a group of genetically modified cattle on a farm in South Dakota, USA. Scientists are currently using these cattle to develop antibodies against Ebola virus. The researchers hope that these cows, which look like ordinary cows, can produce enough antibody-containing plasma to treat humans infected with the Ebola virus. SAbBiotherapeutics, CEO of SAbBiotherapeutics, which breeds cattle, said: "These animals can produce high levels of human antibodies." Because these cattle are genetically modified animals, they do not produce bovine antibodies. But human antibodies. According to reports, these cows have been vaccinated against various deadly diseases such as Ebola virus, and their bodies have produced antibodies against these vaccines.

　　The idea is a bit like getting into the plasma from Ebola survivors. No one knows whether this method is really effective, but scientists have conducted experiments at Emory University Hospitals in Liberia and Atlanta to see if the blood of survivors can stimulate the patient's immune response. It is experts say that when humans and animals are infected, their bodies produce antibodies and immune cells to fight off invading bacteria. The human immune system has evolved to produce antibodies and immune cells called "T cells" that can remember previous infections and prevent secondary infections from the same bacteria. Just like

　　Su Liwen said: "We can collect 30 to 60 liters of plasma from these cows every month. This is equivalent to 500 to 1,000 plasma per cow."

　　Esearch is the next step to use this method on monkeys. It is a test. If it works, it will be tested on humans immediately.