- Egfr protein located on cell membrane , nuclear membrane and in the cytoplasm , characterized in both syncytiotrophoblast and cytotrophoblast
- The syncytiotrophoblast and cytotrophoblast cell of human placenta showed 5 - htia receptor and s - htjreceptor immunoreactivity , positive substance was located in cytoplasm with negative nuclei . 2
人胎盘绒毛滋养层细胞呈现5 - ht受体和5 - ht _ 3受体免疫反应性，阳性物质分布于胞质，胞核为阴性： 2
The cytotrophoblast (or layer of Langhans) is the inner layer of the trophoblast. It is interior to the syncytiotrophoblast and external to the wall of the blastocyst in a developing embryo.