Trophoblast Organoids with Physiological Polarity Model Placental Structure and Function
Overview
Affiliations
Human trophoblast organoids (TOs) are a three-dimensional ex vivo culture model that can be used to study various aspects of placental development, physiology and pathology. However, standard culturing of TOs does not recapitulate the cellular orientation of chorionic villi in vivo given that the multi-nucleated syncytiotrophoblast (STB) develops largely within the inner facing surfaces of these organoids (STBin). Here, we developed a method to culture TOs under conditions that recapitulate the cellular orientation of chorionic villi in vivo. We show that culturing STBin TOs in suspension with gentle agitation leads to the development of TOs containing the STB on the outer surface (STBout). Using membrane capacitance measurements, we determined that the outermost surface of STBout organoids contain large syncytia comprising >50 nuclei, whereas STBin organoids contain small syncytia (<10 nuclei) and mononuclear cells. The growth of TOs under conditions that mimic the cellular orientation of chorionic villi in vivo thus allows for the study of a variety of aspects of placental biology under physiological conditions.
A transcriptomic comparison of in vitro models of the human placenta.
Lapehn S, Nair S, Firsick E, MacDonald J, Thoreson C, Litch J Placenta. 2024; 159:52-61.
PMID: 39637677 PMC: 11857522. DOI: 10.1016/j.placenta.2024.11.007.
Autophagy in reproduction and pregnancy-associated diseases.
Singh A, Perez M, Kirsanov O, Padilla-Banks E, Guardia C iScience. 2024; 27(12):111268.
PMID: 39628569 PMC: 11613427. DOI: 10.1016/j.isci.2024.111268.
Cinkornpumin J, Kwon S, Prandstetter A, Maxian T, Sirois J, Goldberg J bioRxiv. 2024; .
PMID: 39314437 PMC: 11419009. DOI: 10.1101/2024.09.10.612343.
Abady M, Jeong J, Kwon H, Assiri A, Cho J, Saadeldin I Front Pharmacol. 2024; 15:1412188.
PMID: 38948466 PMC: 11211546. DOI: 10.3389/fphar.2024.1412188.
Current strategies using 3D organoids to establish maternal-embryonic interaction.
Saadeldin I, Ehab S, Noreldin A, Swelum A, Bang S, Kim H J Vet Sci. 2024; 25(3):e40.
PMID: 38834510 PMC: 11156602. DOI: 10.4142/jvs.24004.