[Expressions of homing-related adhesion molecules in hematopoietic stem/progenitor cells derived from human placenta, umbilical cord arterial and venous blood]. 2006

Rui Su, and Dai-Xiong Chen, and Ning Fang, and Qi Chen, and Fang-Ze Gong
Department of Hemotology, Affiliated Hospital of Zunyi Medical College, Key Laboratory of Cell Engineering of Guizhou Province, Zunyi 563003, China.

The aim of this study was to evaluate the homing capabilities of hematopoietic stem/progenitor cells (HSPCs) derived from human placenta tissues (PT). Single cell suspension of human PT was prepared by mechanical method. The expression levels of homing-related adhesion molecules (HRAM) including CD11a, CD49d, CD44, CD49e, CD62L and CD54 on CD34(+) cells and the percentages of CD34(+) cells and their subpopulations in nucleated cells (NC) from fresh human PT, umbilical cord arterial blood (UCAB) and umbilical cord venous blood (UCVB) were detected by using flow cytometry. The results showed that the percentage of CD34(+) cells and CD34(+)CD38(-) cells in placenta were higher than those in UCAB and UCVB. There were no significant difference in percentage of HSPC between UCAB and UCVB. Placenta-derived CD34(+) cells strongly expressed CD11a, CD49d, CD44, CD49e and CD54, among which expression levels of CD49e and CD54 on placenta-derived CD34(+) cells were significantly higher than those on UCAB and UCVB-derived CD34(+) cells. While the percentage of CD34(+)CD62L(+) cells in placenta was only lower than that in UCVB. It is concluded that human placenta is rich in HSPC. Moreover, the expression levels of most HRAM in CD34(+) cells from PT are higher than those from UCAB and UCVB or are close to them. It suggested that HSPCs derived from PT might have stronger homing capabilities than those from UCB.

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
D005312 Fetal Blood Blood of the fetus. Exchange of nutrients and waste between the fetal and maternal blood occurs via the PLACENTA. The cord blood is blood contained in the umbilical vessels (UMBILICAL CORD) at the time of delivery. Cord Blood,Umbilical Cord Blood,Blood, Cord,Blood, Fetal,Blood, Umbilical Cord,Bloods, Cord,Bloods, Fetal,Bloods, Umbilical Cord,Cord Blood, Umbilical,Cord Bloods,Cord Bloods, Umbilical,Fetal Bloods,Umbilical Cord Bloods
D006412 Hematopoietic Stem Cells Progenitor cells from which all blood cells derived. They are found primarily in the bone marrow and also in small numbers in the peripheral blood. Colony-Forming Units, Hematopoietic,Progenitor Cells, Hematopoietic,Stem Cells, Hematopoietic,Hematopoietic Progenitor Cells,Cell, Hematopoietic Progenitor,Cell, Hematopoietic Stem,Cells, Hematopoietic Progenitor,Cells, Hematopoietic Stem,Colony Forming Units, Hematopoietic,Colony-Forming Unit, Hematopoietic,Hematopoietic Colony-Forming Unit,Hematopoietic Colony-Forming Units,Hematopoietic Progenitor Cell,Hematopoietic Stem Cell,Progenitor Cell, Hematopoietic,Stem Cell, Hematopoietic,Unit, Hematopoietic Colony-Forming,Units, Hematopoietic Colony-Forming
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D015815 Cell Adhesion Molecules Surface ligands, usually glycoproteins, that mediate cell-to-cell adhesion. Their functions include the assembly and interconnection of various vertebrate systems, as well as maintenance of tissue integration, wound healing, morphogenic movements, cellular migrations, and metastasis. Cell Adhesion Molecule,Intercellular Adhesion Molecule,Intercellular Adhesion Molecules,Leukocyte Adhesion Molecule,Leukocyte Adhesion Molecules,Saccharide-Mediated Cell Adhesion Molecules,Saccharide Mediated Cell Adhesion Molecules,Adhesion Molecule, Cell,Adhesion Molecule, Intercellular,Adhesion Molecule, Leukocyte,Adhesion Molecules, Cell,Adhesion Molecules, Intercellular,Adhesion Molecules, Leukocyte,Molecule, Cell Adhesion,Molecule, Intercellular Adhesion,Molecule, Leukocyte Adhesion,Molecules, Cell Adhesion,Molecules, Intercellular Adhesion,Molecules, Leukocyte Adhesion
D018799 Intercellular Adhesion Molecule-1 A cell-surface ligand involved in leukocyte adhesion and inflammation. Its production is induced by gamma-interferon and it is required for neutrophil migration into inflamed tissue. Antigens, CD54,CD54 Antigens,ICAM-1,CD54 Antigen,Antigen, CD54,Intercellular Adhesion Molecule 1
D018952 Antigens, CD34 Glycoproteins found on immature hematopoietic cells and endothelial cells. They are the only molecules to date whose expression within the blood system is restricted to a small number of progenitor cells in the bone marrow. CD34 Antigens,CD34 Antigen,Antigen, CD34
D018960 Hyaluronan Receptors Acidic sulfated integral membrane glycoproteins expressed in several alternatively spliced and variable glycosylated forms on a wide variety of cell types including mature T-cells, B-cells, medullary THYMOCYTES; GRANULOCYTES; MACROPHAGES; erythrocytes, and fibroblasts. Their interaction with HYALURONIC ACID mediates binding of lymphocytes to high endothelial VENULES. Antigens, CD44,CD44 Antigens,Hyaluronan-Binding Protein,Receptors, Hyaluronan,CD44 Antigen,Chondroitin Sulfate Proteoglycan 8,Hyaluronan Receptor,Hyaluronic Acid Binding Protein,Antigen, CD44,Hyaluronan Binding Protein,Receptor, Hyaluronan
D039482 Integrin alpha5 This integrin alpha subunit combines with INTEGRIN BETA1 to form a receptor (INTEGRIN ALPHA5BETA1) that binds FIBRONECTIN and LAMININ. It undergoes posttranslational cleavage into a heavy and a light chain that are connected by disulfide bonds. Antigens, CD49e,CD49e Antigens,CD49e Antigen,Integrin alphaF,Platelet Glycoprotein Ic,VLA-5 alpha Chain,alpha(5) Integrin,alpha5 Integrin,Antigen, CD49e,Glycoprotein Ic, Platelet,Ic, Platelet Glycoprotein,Integrin, alpha5,VLA 5 alpha Chain,alpha Chain, VLA-5,alpha5, Integrin,alphaF, Integrin

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