{"title":"脐带血来源的干细胞和祖细胞的体外扩增。","authors":"M A Moore, I Hoskins","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>Cord blood-derived CD34+ cells have proved superior to adult marrow or elicited peripheral blood in ex vivo cell and progenitor expansion. In addition, cord blood-derived cells with a phenotype and function of early stem cells (e.g., long-term culture-initiating cells) can be expanded in vitro in the presence of a combination of cytokines by 15- to 20-fold over 7-14 days. These observations suggest that ex vivo expansion of cord blood CD34+ cells will permit improved engraftment of adults and will prove effective in retroviral-mediated gene transfection of early stem cell populations.</p>","PeriodicalId":75604,"journal":{"name":"Blood cells","volume":"20 2-3","pages":"468-79; discussion 479-81"},"PeriodicalIF":0.0000,"publicationDate":"1994-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ex vivo expansion of cord blood-derived stem cells and progenitors.\",\"authors\":\"M A Moore, I Hoskins\",\"doi\":\"\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Cord blood-derived CD34+ cells have proved superior to adult marrow or elicited peripheral blood in ex vivo cell and progenitor expansion. In addition, cord blood-derived cells with a phenotype and function of early stem cells (e.g., long-term culture-initiating cells) can be expanded in vitro in the presence of a combination of cytokines by 15- to 20-fold over 7-14 days. These observations suggest that ex vivo expansion of cord blood CD34+ cells will permit improved engraftment of adults and will prove effective in retroviral-mediated gene transfection of early stem cell populations.</p>\",\"PeriodicalId\":75604,\"journal\":{\"name\":\"Blood cells\",\"volume\":\"20 2-3\",\"pages\":\"468-79; discussion 479-81\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1994-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Blood cells\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Blood cells","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Ex vivo expansion of cord blood-derived stem cells and progenitors.
Cord blood-derived CD34+ cells have proved superior to adult marrow or elicited peripheral blood in ex vivo cell and progenitor expansion. In addition, cord blood-derived cells with a phenotype and function of early stem cells (e.g., long-term culture-initiating cells) can be expanded in vitro in the presence of a combination of cytokines by 15- to 20-fold over 7-14 days. These observations suggest that ex vivo expansion of cord blood CD34+ cells will permit improved engraftment of adults and will prove effective in retroviral-mediated gene transfection of early stem cell populations.
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