Cytotrophoblast
Cytotrophoblast - Related Videos
09:57
siRNA Transfection and EMSA Analyses on Freshly Isolated Human Villous Cytotrophoblasts
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Cited by 3 •
2016
This protocol describes a method for efficiently transfecting siRNA in freshly isolated human villous cytotrophoblasts using microporation and identifying DNA-protein complexes in these cells. Transfected cells can be monitored by Western blot and EMSA analyses during the 4-day culture time.
12:02
Human Primary Trophoblast Cell Culture Model to Study the Protective Effects of Melatonin Against Hypoxia/reoxygenation-induced Disruption
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Cited by 35 •
2016
This manuscript presents a unique in vitro model of immunopurified human villous cytotrophoblast cells cultured under hypoxia/reoxygenation. This model is suitable to study the protective effects of promising treatments, such as melatonin, on pregnancy complications associated with increased oxidative stress and altered placental function.
02:52
A Technique to Establish a Bacterial Infection Model in an Ex Vivo Organ Culture
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2025
This video demonstrates a method to establish an infection model in placental tissues to study infection propagation. An ex vivo placental organ culture is infected with Listeria monocytogenes, a facultative intracellular parasite. The bacteria invade extravillous trophoblasts (EVTs) to enter the placental tissue and then propagate to other cells via cell-to-cell spread.
FAQs
Proliferation maintains a supply of cells that can enter distinct developmental pathways as the placenta forms. Some cells fuse to produce syncytiotrophoblast, whereas others differentiate into extravillous trophoblast. This balance allows placental growth to proceed while generating specialized cell populations for exchange, hormone production, uterine interaction, and vascular remodeling.
Fusion into multinucleated syncytiotrophoblast contributes to the placental barrier and supports nutrient and gas exchange, hormone production, and maternal immune interactions. Extravillous trophoblast instead acquires migratory behavior and enters the uterine lining, where it remodels maternal blood vessels. These pathways therefore address different physical and physiological requirements of implantation.
Differentiation produces trophoblast populations that can perform complementary tasks at the maternal-fetal interface. Their activities help establish controlled contact with maternal tissues, regulate immune interactions, and coordinate exchange across the developing placenta. Disruption of these transitions could therefore affect implantation, vascular adaptation, or the communication required for normal placental function.
A useful investigation follows replication, differentiation, fusion, and migration as connected developmental events rather than isolated features. Researchers can examine whether cells enter the syncytiotrophoblast or extravillous trophoblast pathway and then relate those outcomes to barrier formation, uterine invasion, vascular remodeling, exchange, hormone production, and immune interactions during placental development.
Cytotrophoblast biology provides a framework for relating abnormal placental development to pregnancy disorders. Studies can focus on whether differentiation, migration into the uterine lining, or remodeling of maternal blood vessels proceeds normally. Comparing these processes with placental functions such as nutrient and gas exchange may help clarify connections to preeclampsia and fetal growth restriction.
Studies may evaluate implantation, formation of the placental barrier, maternal blood-vessel remodeling, and the regulation of nutrient and gas exchange. They can also assess hormone production and maternal immune interactions as outcomes of trophoblast development. Together, these measures connect cellular behavior with the broader performance of the placenta during pregnancy.