20xx年醫(yī)學(xué)專(zhuān)題—干細(xì)胞特性及最新研究進(jìn)展(精)(存儲(chǔ)版)
【正文】 s:self－leveling concrete。(3無(wú)限擴(kuò)增也就是所說(shuō)的自我更新能力．它在不同的條件下生長(zhǎng)、發(fā)育會(huì)表現(xiàn)出不同的功能狀態(tài)．其增殖速率極高,即使在體外環(huán)境中進(jìn)行培養(yǎng),也能建立起比較穩(wěn)定的細(xì)胞系．2．2成體干細(xì)胞的生物學(xué)特性隨著干細(xì)胞生物學(xué)研究的深入,某些研究者發(fā)現(xiàn)部分成體組織除能夠進(jìn)行自我更新外,還可以分化成其他組織系統(tǒng)的細(xì)胞．從而形成了跨系統(tǒng)甚至跨胚層分化發(fā)育的目的,這促進(jìn)了20世紀(jì)90年代干細(xì)胞研究的突破性進(jìn)展．在許多關(guān)于成體干細(xì)胞可塑性的研究中發(fā)現(xiàn):成體干細(xì)胞不僅能夠分化成與其相同系統(tǒng)和胚層的細(xì)胞,還能分化成不同系統(tǒng)和胚層的細(xì)胞．如中胚層起源的骨髓干細(xì)胞,可分化成平滑肌細(xì)胞、[2]心肌細(xì)胞[3]和肝細(xì)胞。細(xì)胞質(zhì)較少。干細(xì)胞療法。細(xì)胞質(zhì)內(nèi)細(xì)胞器比較少。但在ES細(xì)胞應(yīng)用時(shí),必須確認(rèn)ES細(xì)胞提供者沒(méi)有營(yíng)養(yǎng)失調(diào)癥之類(lèi)的遺傳性疾?。?0多年的骨髓移植臨床實(shí)踐已證實(shí),對(duì)成體干細(xì)胞而言,還是安全有效的。performance責(zé)任編輯:王麗萍(上接34頁(yè)Characteristics of Stem Cells and thelatest Research ProgressLIU Hui(Baicheng Medical College,Baicheng137000,ChinaAbstract:Stem cells are the seeding cells of human body,and the prime source to constitute human body’s various kinds of tissue cells．In certain conditions,It differentiate and evolve into multiple kinds of available functional cells．Stem cells are a highly breeding cell colony with multiple differentiation potential．In recent years,the study on stem cells has been extended to modern life science and medical science,this technique realized the transformation from laboratory to clinical practice．Stem cells therapy has bee a new approach to cure many diseases,it has the important theoretical significance and clinical practical value．This paper summarized the characteristics and its development and application in clinical context．Key Words:stem cells。次要因素膨脹劑摻量為10% 12%。(2可操作性．不但有體外培養(yǎng)細(xì)胞的特征,還能在不會(huì)喪失其多能性的情況下對(duì)遺傳操作進(jìn)行選擇、凍存等調(diào)控措施,并且同一個(gè)克隆過(guò)程產(chǎn)生的細(xì)胞具有一樣的特征。大都為常染色質(zhì)。臨床應(yīng)用中圖分類(lèi)號(hào):Q813文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):16733118(201203003203收稿日期:2011－12－14作者簡(jiǎn)介:劉惠(1970———,女,白城醫(yī)學(xué)高等專(zhuān)科學(xué)校講師,研究方向:組織胚胎學(xué)．干細(xì)胞從被發(fā)現(xiàn)至今,各國(guó)的科學(xué)家對(duì)其研究的熱情絲毫未減．從早期的干細(xì)
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