Higher-order orchestration of hematopoiesis: is cohesin a new player?

Higher-order orchestration of hematopoiesis: is cohesin a new player?
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造血的高阶编排:粘蛋白是新玩家吗?

DOI:
10.1016/j.exphem.2012.09.010
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发表时间:
2012-12
影响因子:
2.6
通讯作者:
Pati, Debananda
Pati, Debananda
中科院分区:
医学4区
文献类型:
--
作者:
Panigrahi, Anil K.;Pati, Debananda

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造血——从单个多能造血干细胞产生不同谱系定向血细胞的过程——是由一组动态转录程序调节的复杂的细胞分化过程。细胞因子和生长因子、转录因子、染色质重塑和修饰酶被认为在造血过程中发挥关键作用,导致骨髓、淋巴、红细胞和血小板前体细胞的发育。如此复杂的流程是如何精心策划的?是否存在更高阶的造血调节?这些是造血领域一些尚未解决的问题。在这里,我们认为粘连蛋白(已知可介导姐妹染色单体之间的染色体粘连)可能在造血的协调中发挥核心作用,并作为主要的转录调节因子。
Hematopoiesis—the process that generates distinct lineage-committed blood cells from a single multipotent hematopoietic stem cell—is a complex process of cellular differentiation regulated by a set of dynamic transcriptional programs. Cytokines and growth factors, transcription factors, chromatin remodeling, and modifying enzymes have been suggested to enact critical roles during hematopoiesis, leading to the development of myeloid, lymphoid, erythroid and platelet precursors. How is such a complex process orchestrated? Is there a higher order of hematopoiesis regulation? These are some of the unresolved questions in the field of hematopoiesis. Here, we suggest that cohesin, which is known to mediate chromosomal cohesion between sister chromatids, may have a central role in the orchestration of hematopoiesis and serve as a master transcriptional regulator.
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