It is expected to realize to produce the erythrocyte outside the body
It is reported ' Reporter Yan �) A few days ago, the researchers of Beijing Red Cross Blood Center utilized the remaining white membrane floor in composition separation process of whole blood, succeed in inducing out the ripe erythrocyte outside the body, bring the new hope for producing the erythrocyte outside realizing the body. According to the introduction of the researchers of this centre, the blood center is after gathering to the whole blood, need to isolate the effective usable composition, a layer of white membranes produced after and the white membrane layer (blood among them is through being at odds with the community or the leadership from it, mainly made up of leucocyte, lymphocyte, macrophage,etc.) If entering patient's body may cause blood transfusion to react, so, in most cases discard and does not use, but include the abundant hematopoietic stem cell among them. Researcher isolate single nuclear cell in the layer from white membrane ' Among them include the hematopoietic stem cell) ,Then, utilize culture medium of cell and stimulus of the cell factor, through the cultivation of about 24 days of 3 stages outside the body, succeed in preparing the ripe erythrocyte. The size, structure and function of these erythrocytes are similar to normal erythrocyte, include adult hemoglobin, and it takes oxygen ability the same as normal erythrocyte. The researchers of this centre say, the next step, will train the erythrocyte by stiring way to train stereoscopically, hope to find out and apply to the clinical erythrocyte and produce the route.
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