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    • 6. 发明申请
    • COMBINED CHEMICAL MODIFICATION OF SPHINGOSINE-1-PHOSPHATE (S1P) AND CXCR4 SIGNALLING PATHWAYS FOR HEMATOPOIETIC STEM CELL (HSC) MOBILIZATION AND ENGRAFTMENT
    • 联合化学改性磷脂酸1-磷酸(S1P)和CXCR4信号通路用于HEMATOPOIETIC干细胞(HSC)动员和放大
    • WO2012174522A1
    • 2012-12-20
    • PCT/US2012/042934
    • 2012-06-18
    • CHILDREN'S MEDICAL CENTER CORPORATIONZON, Leonard, I.TAMPLIN, Owen, J.
    • ZON, Leonard, I.TAMPLIN, Owen, J.
    • A61K31/137A61K31/381A61K31/395A61K31/4245A61K31/662A61K38/04A61P37/06A61P43/00
    • A61K35/14A61K31/137A61K31/138A61K31/381A61K31/395A61K31/4245A61K31/662A61K35/28A61K38/04A61K45/06A61K2300/00
    • The present embodiments provide for combinations of modulators that increase hematopoietic stem cell engraftment or increase mobilization in vivo . Methods and compositions for modulating the mobilization of stem cells, particularly for promoting or increasing the mobilization of hematopoietic stem cells (HSCs) from the bone marrow to the peripheral blood are disclosed. One aspect of the invention relates to the use of a CXCR4 antagonist that act in concert with specific molar ratios of S1P receptor 1 (S1PR1) modulator agents to promote HSC mobilization. The invention also relates to methods of using these combinations of CXCR4 antagonists and S1PR1 modulator agents for enhancing the mobilization of hematopoietic stem cells when harvesting of the stem cells, for example for the treatment of diseases, disabilities or conditions whereby transplantation of such cells would be beneficial in ameliorating a symptom associated with such diseases, disabilities or conditions. Another aspect of the invention relates to the use of a CXCR4 antagonist that act in concert with different, but specific molar ratios of S1P receptor 1 (S1PR1) modulator agents to promote HSC engraftment and methods for promoting HSC engraftment in a subject in need thereof, e.g., a recipient subject of a bone marrow or HSC transplant. Methods of screening for novel agents and pharmaceutical compositions comprising these agents are also disclosed.
    • 本实施例提供了增加造血干细胞移植或增加体内动员的调节剂的组合。 公开了用于调节干细胞动员的方法和组合物,特别是用于促进或增加造血干细胞(HSC)从骨髓到外周血的动员。 本发明的一个方面涉及CXCR4拮抗剂的用途,其与S1P受体1(S1PR1)调节剂的特定摩尔比一致以促进HSC动员。 本发明还涉及使用CXCR4拮抗剂和S1PR1调节剂的这些组合的方法,用于在收获干细胞时增强造血干细胞的动员,例如用于治疗疾病,残疾或这样的细胞的移植将是 有利于改善与这种疾病,残疾或病症相关的症状。 本发明的另一方面涉及CXCR4拮抗剂的用途,所述CXCR4拮抗剂与S1P受体1(S1PR1)调节剂的不同但特异性摩尔比一致以促进HSC植入以及在有需要的受试者中促进HSC植入的方法, 例如,骨髓或HSC移植的接受者。 还公开了包含这些试剂的新型试剂和药物组合物的筛选方法。