Haematopoietic stem cell mobilization is a process whereby haematopoietic stem cells are stimulated out of the bone marrow space. Before HSC can mobilize, they must be dislodged and released from the BM stem cell niche in which they reside and are retained by adhesive interactions. Accordingly, in an aspect of the present invention there is provided a method for enhancing dislodgement of HSC and their precursors and progenitors thereof from a BM stem cell binding ligand in vivo or ex vivo, said method comprising administering in vivo or ex vivo an effective amount of an antagonist of an α9 integrin or an active portion thereof and a CXCR4 antagonist or an active portion thereof to the BM stem cell niche. Once mobilized to the peripheral blood (PB) the HSC may be collected for transplant. Methods which enhance mobilization of the HSC can also improve treatments of haematological disorders.
造血干细胞动员是一种过程,通过该过程,造血干细胞被激发出骨髓空间。在HSC能够动员之前,它们必须从其所驻留并通过粘附相互作用保留的BM干细胞
基因座中
脱落并释放出来。因此,在本发明的一个方面,提供了一种增强HSC及其前体和祖细胞从BM干细胞结合
配体中在体内或体外
脱落的方法,该方法包括在体内或体外给予α9整合素或其活性部分的
拮抗剂和CXCR4
拮抗剂或其活性部分的有效量至BM干细胞
基因座。一旦动员到外周血(PB),HSC可以用于移植。增强HSC动员的方法也可以改善血液病的治疗。