and developed a method of making a large number of cells is the basis of the red blood cells from iPS cells, make red blood cells from there.

University of Tokyo and Kyoto University Center for iPS Cell Research how to prepare a large number of cells is the basis of the red blood cells induced pluripotent stem cells of the person to be in a variety of cells and tissues of the body from (iPS cells) , make red blood cells from there team , such as to develop , I announced to the U.S. science journal dated 5 .
According to the team , oxygen-carrying red blood cells in the blood is collected in a blood donation , as well as blood disorders such as aplastic anemia of incurable diseases and leukemia , and is used for transfusion to patients undergoing surgery , but the future from such as declining birthrate and aging population there is a possibility of a shortage . Cells underlying have achievements and leading to stable supply of red blood cells to proliferate almost indefinitely . The team succeeds even embryonic stem (ES) cells capable of similar to iPS cells .
After having incorporated genes and the two " cMYC " and " BCLXL " in iPS cells , and enhance the work by using the compound , the team can be cells from which the red blood cells .
The cells began to change into the red blood cells continued to proliferate for more than six months , and stops the action of two genes then . The cells were found to be partially circulates in the body and has the ability to carry oxygen , when administered to mice , it is the red blood cells mature .
The need for blood donation sorry you will no longer do this will be put to practical use ?
If you want to know about iPS cells again , books under Nantes I How is it .


体のさまざまな細胞や組織になるヒトの人工多能性幹細胞（ｉＰＳ細胞）から赤血球のもとになる細胞を大量に作製し、そこから赤血球を作る方法を京都大ｉＰＳ細胞研究所や東京大などのチームが開発し、５日付の米科学誌に発表した。
　チームによると、血液中で酸素を運ぶ赤血球は献血で集められ、白血病や難病の再生不良性貧血などの血液疾患のほか、手術を受ける患者への輸血に用いられるが、少子高齢化などから今後不足する可能性がある。もとになる細胞はほぼ無限に増殖するため赤血球の安定供給につながる成果としている。チームは、ｉＰＳ細胞と同様の能力を持つ胚性幹細胞（ＥＳ細胞）でも成功した。
　チームはｉＰＳ細胞に２つの遺伝子「ｃＭＹＣ」と「ＢＣＬＸＬ」を組み込んだ上、化合物を使って働きを強めると、赤血球のもとになる細胞ができた。
　この細胞は６カ月以上増殖を続け、その後２つの遺伝子の働きをストップさせると赤血球へと変化を始めた。この細胞は酸素を運ぶ機能を持ち、マウスに投与すると一部が体内で循環し、成熟した赤血球になっていることが分かった。
　これが実用化されると献血の必要性がなくなるんでしょうかね？
　改めてiPS細胞について知りたい方は、下の書籍なんてどうですかね。