Intrinsic cartilage-forming potential of dermomyotomal cells requires ectodermal signals for the development of the scapula blade

Intrinsic cartilage-forming potential of dermomyotomal cells requires ectodermal signals for the development of the scapula blade
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真皮肌细胞的内在软骨形成潜力需要外胚层信号来发育肩胛骨

DOI:
10.1007/s00429-004-0415-0
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发表时间:
2004
期刊:
Anatomy and Embryology
影响因子:
--
通讯作者:
Ruijin Huang
Ruijin Huang
中科院分区:
--
文献类型:
--
作者:
F. Ehehalt;Baigang Wang;B. Christ;K. Patel;Ruijin Huang

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鸟类的肩胛骨有双重起源。头侧部分来源于前肢区的体侧板,而尾侧部分,肩胛骨,来源于颈胸过渡区的皮肌节。因此,这些皮肌切开器除了具有众所周知的生肌、血管生成和皮肤生成潜力外,还具有形成软骨的能力。因此肩胛骨是皮肌节软骨形成的衍生物。虽然指导硬骨瘤软骨形成的机制已开始被理解,但对皮肌瘤软骨形成知之甚少。在这里,我们解决的机制,控制dermomyotomal细胞成为软骨细胞。背侧上皮体节的一半从肩胛骨形成水平异位移植到颈部水平后,移植的组织保留形成软骨的能力,这表明在轴旁中胚层的前向后区域化过程中,必须指定dermomyotomal软骨形成的潜力。此外,我们表明,需要来自外胚层的信号,允许dermomyotome细胞表达与软骨形成谱系相关的标志物。
The avian scapula has a dual origin. The cranial part derives from the somatopleure of the forelimb field, while the caudal part, the scapula blade, originates from the dermomyotomes of the cervicothoracic transition zone. Thus, these dermomyotomes have, in addition to the well-known myogenic, angiogenic, and dermogenic potential, the ability to form cartilage. The scapula blade is therefore a derivative of dermomyotomal chondrogenesis. Although the mechanisms that direct the sclerotomal chondrogenesis are beginning to be understood, little is known about dermomyotomal chondrogenesis. Here, we address the mechanisms that control dermomyotomal cells to become chondrocytes. After heterotopic transplantation of dorsal epithelial somite halves from the scapula-forming level to the cervical level, the grafted tissue retains the capability to form cartilage, indicating that the dermomyotomal chondrogenic potential must be specified during anterior-to-posterior regionalisation of the paraxial mesoderm. Furthermore, we show that signals from the ectoderm are required, allowing dermomyotome cells to express markers associated with the chondrogenic lineage.
Hox 基因和体细胞中胚层的整体模式。
DOI: --
发表时间: 2000
影响因子: --
作者:
Burke,AC
通讯作者: Burke,AC
Hox 基因和形态学特征:脊椎动物中胚层的轴向与横向模式。
DOI: 10.1242/dev.127.19.4265
发表时间: 2000
期刊: Development (Cambridge, England)
影响因子: --
作者:
Nowicki,JL;Burke,AC
通讯作者: Burke,AC
鸟类肩胛骨的双重起源和节段组织。
DOI: 10.1242/dev.127.17.3789
发表时间: 2000
期刊: Development (Cambridge, England)
影响因子: --
作者:
Huang,R;Zhi,Q;Patel,K;Wilting,J;Christ,B
通讯作者: Christ,B