Platelet-derived growth factor-A and its receptor are expressed in separate, but adjacent cell layers of the mouse embryo.

Platelet-derived growth factor-A and its receptor are expressed in separate, but adjacent cell layers of the mouse embryo.
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血小板衍生生长因子-A 及其受体在小鼠胚胎的独立但相邻的细胞层中表达。

DOI:
10.1242/dev.115.4.1045
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发表时间:
1992
期刊:
影响因子:
4.6
通讯作者:
P. Lonai
P. Lonai
中科院分区:
生物学2区
文献类型:
--
作者:
A. Orr;P. Lonai

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小鼠血小板衍生生长因子A(PDGF-A)的局部发育表达与其受体(Pdgfra)的表达进行了比较。我们的原位杂交研究包括原始条纹胚胎的胚层,早期轴结构(皮节,肌节,硬结,底板),皮肤及其衍生物(毛发和乳腺),发育前肢,鳃弓和各种感觉器官(耳泡,嗅觉上皮和眼睛)。我们报告说,PDGF-A和Pdgfra表达在单独的,但在这些结构中相邻的细胞层,在大多数情况下,配体表达在上皮细胞,而在间充质中的受体。这种定位对应于跨细胞层的发育相互作用的经典实验证据。我们认为PDGF-A和Pdgfra以及其他相关系统的时空调节代表了受体-配体相互作用的空间调节模型。
The localized developmental expression of murine platelet-derived growth factor A (PDGF-A) was compared to that of its receptor (Pdgfra). Our in situ hybridization study included germ layers of primitive streak embryos, early axial structures (dermatome, myotome, sclerotome, floor plate), the skin and some of its derivatives (hair and mammary gland), the developing forelimb, the branchial arches and various sense organs (otic vesicle, olfactory epithelium and the eye). We report that PDGF-A and Pdgfra are expressed in separate, but adjacent cell layers in these structures and that in most, the ligand is expressed in the epithelium, whereas the receptor in the mesenchyme. This localization corresponds to classical experimental evidence for developmental interactions across cell layers. We suggest that the spatio-temporal regulation of PDGF-A and Pdgfra, and other related systems, represents one model for the spatial regulation of receptor-ligand interactions.
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