Isolation and characterization of trophoblasts from enzymatic explants of human term placenta. 2017

Tamara D Kolokoltsova, and Irina N Saburina, and Irina M Zurina, and Anastasia A Gorkun, and Nastasia V Kosheleva, and Vadim S Repin, and Rimma A Poltavtseva, and Gennady T Sukhikh
Laboratory of Cell Biology and Developmental Pathology, FSBSI "Institute of General Pathology and Pathophysiology", 8, Baltiyskaya st., Moscow, 125315, Russian Federation.

In the present study, we describe a new method of isolation and culture of human villous and extravillous trophoblasts from term placenta. The cultivation of trypsinized placental villous tissue explants, followed by the isolation of cells from outgrowth islets allows for obtaining a cytotrophoblast subpopulation that is free from contamination by other cell types. Compared to other methods, our protocol is mild, simple and effective, does not request costly reagents and provides isolation of the mononuclear cytotrophoblast cell populations free from contamination by other types of placental cells. The isolated cells proliferated and formed a pleomorphic monolayer, where cells fused into a small number of binuclear or polynuclear syncytiotrophoblasts. Isolated cytotrophoblast cells expressed the specific epithelial intermediate filament cytokeratin 7 (CK7), the epithelium-specific cell-cell adhesion molecule E-cadherin and were CD9-, CD45- and vimentin-negative. Cyto- and syncytiotrophoblasts obtained by this method can be used as a model or tool for the fundamental research of differentiation and function of human placental cells, and can provide a new understanding of drug distribution in placenta. Their combination with other in vitro cell models can be useful for studying a variety of other aspects concerning placental functions, which will provide new knowledge for understanding immunology, endocrinology and development of placenta.

UI MeSH Term Description Entries
D010920 Placenta A highly vascularized mammalian fetal-maternal organ and major site of transport of oxygen, nutrients, and fetal waste products. It includes a fetal portion (CHORIONIC VILLI) derived from TROPHOBLASTS and a maternal portion (DECIDUA) derived from the uterine ENDOMETRIUM. The placenta produces an array of steroid, protein and peptide hormones (PLACENTAL HORMONES). Placentoma, Normal,Placentome,Placentas,Placentomes
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D002469 Cell Separation Techniques for separating distinct populations of cells. Cell Isolation,Cell Segregation,Isolation, Cell,Cell Isolations,Cell Segregations,Cell Separations,Isolations, Cell,Segregation, Cell,Segregations, Cell,Separation, Cell,Separations, Cell
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014327 Trophoblasts Cells lining the outside of the BLASTOCYST. After binding to the ENDOMETRIUM, trophoblasts develop into two distinct layers, an inner layer of mononuclear cytotrophoblasts and an outer layer of continuous multinuclear cytoplasm, the syncytiotrophoblasts, which form the early fetal-maternal interface (PLACENTA). Cytotrophoblasts,Syncytiotrophoblasts,Trophoblast,Cytotrophoblast,Syncytiotrophoblast
D014357 Trypsin A serine endopeptidase that is formed from TRYPSINOGEN in the pancreas. It is converted into its active form by ENTEROPEPTIDASE in the small intestine. It catalyzes hydrolysis of the carboxyl group of either arginine or lysine. EC 3.4.21.4. Tripcellim,Trypure,beta-Trypsin,beta Trypsin
D015820 Cadherins Calcium-dependent cell adhesion proteins. They are important in the formation of ADHERENS JUNCTIONS between cells. Cadherins are classified by their distinct immunological and tissue specificities, either by letters (E- for epithelial, N- for neural, and P- for placental cadherins) or by numbers (cadherin-12 or N-cadherin 2 for brain-cadherin). Cadherins promote cell adhesion via a homophilic mechanism as in the construction of tissues and of the whole animal body. Cadherin,E-Cadherins,Epithelial-Cadherin,Liver Cell Adhesion Molecules,N-Cadherins,Neural Cadherin,P-Cadherins,Uvomorulin,Cadherin-1,Cadherin-2,Cadherin-3,E-Cadherin,Epithelial-Cadherins,Liver Cell Adhesion Molecule,N-Cadherin,Neural Cadherins,P-Cadherin,Placental Cadherins,Cadherin 1,Cadherin 2,Cadherin 3,Cadherin, Neural,Cadherins, Neural,Cadherins, Placental,E Cadherin,E Cadherins,Epithelial Cadherin,Epithelial Cadherins,N Cadherin,N Cadherins,P Cadherin,P Cadherins
D053552 Keratin-7 A type II keratin found associated with KERATIN-19 in ductal epithelia and gastrointestinal epithelia. Cytokeratin 7,Cytokeratin-7,Keratin 7,Keratin CK7

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