Endothelial cell lineages of the heart.

Endothelial cell lineages of the heart.
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DOI:
10.1007/s00441-008-0663-z
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发表时间:
2009-01
影响因子:
3.6
通讯作者:
Mikawa, Takashi
Mikawa, Takashi
中科院分区:
生物学3区
文献类型:
--
作者:
Ishii, Yasuo;Langberg, Jonathan;Rosborough, Kelley;Mikawa, Takashi

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在早期原肠胚形成期间,脊椎动物胚胎开始从中胚层产生内皮细胞(EC)。内皮细胞首先形成原始血管丛,然后分化为动脉、静脉、毛细血管和淋巴管内皮细胞。在心脏中,有五种不同的EC类型:内皮细胞、冠状动脉、静脉、毛细血管和淋巴管,它们具有不同的表型。例如,冠状动脉EC在整个心肌中建立典型的血管网络,而内皮细胞EC形成大的上皮片,而没有血管生成出芽到心肌中。冠状动脉、静脉、毛细血管和淋巴管都不与心内膜融合,也不向心室开放。目前还不清楚在哪个发育阶段,确定每种心脏EC类型的特定表型。通过跟踪心脏EC前体的迁移模式和谱系决定,EC承诺和多样性所涉及的机制被更精确地定义。
During early gastrulation, vertebrate embryos begin to produce endothelial cells (ECs) from the mesoderm. ECs first form primitive vascular plexi de novo and later differentiate into arterial, venous, capillary, and lymphatic endothelial cells. In the heart, there are five distinct EC types: endocardial, coronary arterial, venous, capillary, and lymphatic, which have distinct phenotypes. For example, coronary ECs establish a typical vessel network throughout the myocardium, while endocardial ECs form a large epithelial sheet without angiogenic sprouting into the myocardium. Neither coronary arteries, veins, capillaries, nor lymphatic vessels fuse with the endocardium or open to the heart chamber. It is still unclear during which developmental stage, a specific phenotype of each cardiac EC type is determined. By tracking the migratory patterns and lineage decisions for cardiac EC precursors, the mechanisms involved in EC commitment and diversity are more precisely defined.
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