Comparative study of stromal cell lines derived from embryonic, fetal, and postnatal mouse blood-forming tissues. 2002

Pierre Charbord, and Robert Oostendorp, and Wenxin Pang, and Olivier Hérault, and Frederic Noel, and Takashi Tsuji, and Elaine Dzierzak, and Bruno Péault
Inserm U506, Hopital Paul Brousse, Villejuif, France. pcharbord@noos.fr

OBJECTIVE To better understand the differentiation of stromal cells of the hematopoietic microenvironment, we set out to characterize stromal cells from the different developmental sites of hematopoiesis in the mouse (30 bone marrow, 7 spleen, 3 embryonic and 15 fetal liver, 6 yolk sac, and 6 aorta-gonad-mesonephros lines) for expression of 22 cytoskeletal, membrane, and extracellular matrix proteins. METHODS Western blotting, immunofluorescence, and flow cytometry were used. Statistical methods included principal components analysis and analysis of variance. RESULTS Stromal cells from 11 dpc mouse embryos express mesenchymal and vascular smooth muscle cell (VSMC) markers. Principal components analysis on the 70 stromal cell lines isolated from different anatomic sites and developmental stages allows classification of stromal lines along a mesenchymal to VSMC differentiation pathway. Stromal cells do not express endothelial and hematopoietic differentiation membrane antigens, but they do express integrin alpha(5), alpha(6), and beta(1) subunits, vascular cell adhesion molecule-1, CD44, stem cell antigen-1, Thy-1, CD34, and endoglin. The intensity of expression of certain markers differs between lines according to the anatomic site of origin. CONCLUSIONS This study indicates that stromal cells, whatever their anatomic site of origin, follow a VSMC differentiation pathway, suggesting a blood-forming tissue-specific differentiation of mesenchymal stem cells. Differential quantitative expression of distinct sets of markers appears to be correlated with the anatomic sites of origin of the stromal cells.

UI MeSH Term Description Entries
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
D002454 Cell Differentiation Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs. Differentiation, Cell,Cell Differentiations,Differentiations, Cell
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D004622 Embryo, Mammalian The entity of a developing mammal (MAMMALS), generally from the cleavage of a ZYGOTE to the end of embryonic differentiation of basic structures. For the human embryo, this represents the first two months of intrauterine development preceding the stages of the FETUS. Embryonic Structures, Mammalian,Mammalian Embryo,Mammalian Embryo Structures,Mammalian Embryonic Structures,Embryo Structure, Mammalian,Embryo Structures, Mammalian,Embryonic Structure, Mammalian,Embryos, Mammalian,Mammalian Embryo Structure,Mammalian Embryonic Structure,Mammalian Embryos,Structure, Mammalian Embryo,Structure, Mammalian Embryonic,Structures, Mammalian Embryo,Structures, Mammalian Embryonic
D005260 Female Females
D005314 Embryonic and Fetal Development Morphological and physiological development of EMBRYOS or FETUSES. Embryo and Fetal Development,Prenatal Programming,Programming, Prenatal
D005333 Fetus The unborn young of a viviparous mammal, in the postembryonic period, after the major structures have been outlined. In humans, the unborn young from the end of the eighth week after CONCEPTION until BIRTH, as distinguished from the earlier EMBRYO, MAMMALIAN. Fetal Structures,Fetal Tissue,Fetuses,Mummified Fetus,Retained Fetus,Fetal Structure,Fetal Tissues,Fetus, Mummified,Fetus, Retained,Structure, Fetal,Structures, Fetal,Tissue, Fetal,Tissues, Fetal
D005434 Flow Cytometry Technique using an instrument system for making, processing, and displaying one or more measurements on individual cells obtained from a cell suspension. Cells are usually stained with one or more fluorescent dyes specific to cell components of interest, e.g., DNA, and fluorescence of each cell is measured as it rapidly transverses the excitation beam (laser or mercury arc lamp). Fluorescence provides a quantitative measure of various biochemical and biophysical properties of the cell, as well as a basis for cell sorting. Other measurable optical parameters include light absorption and light scattering, the latter being applicable to the measurement of cell size, shape, density, granularity, and stain uptake. Cytofluorometry, Flow,Cytometry, Flow,Flow Microfluorimetry,Fluorescence-Activated Cell Sorting,Microfluorometry, Flow,Cell Sorting, Fluorescence-Activated,Cell Sortings, Fluorescence-Activated,Cytofluorometries, Flow,Cytometries, Flow,Flow Cytofluorometries,Flow Cytofluorometry,Flow Cytometries,Flow Microfluorometries,Flow Microfluorometry,Fluorescence Activated Cell Sorting,Fluorescence-Activated Cell Sortings,Microfluorimetry, Flow,Microfluorometries, Flow,Sorting, Fluorescence-Activated Cell,Sortings, Fluorescence-Activated Cell
D005865 Gestational Age The age of the conceptus, beginning from the time of FERTILIZATION. In clinical obstetrics, the gestational age is often estimated from the onset of the last MENSTRUATION which is about 2 weeks before OVULATION and fertilization. It is also estimated to begin from fertilization, estrus, coitus, or artificial insemination. Embryologic Age,Fetal Maturity, Chronologic,Chronologic Fetal Maturity,Fetal Age,Maturity, Chronologic Fetal,Age, Embryologic,Age, Fetal,Age, Gestational,Ages, Embryologic,Ages, Fetal,Ages, Gestational,Embryologic Ages,Fetal Ages,Gestational Ages
D000375 Aging The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time. Senescence,Aging, Biological,Biological Aging

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