Transfer of immunoglobulin G across the isolated perfused human placental lobule. 1995

J I Duncan, and S S Armstrong-Fisher, and S J Urbaniak, and D R Abramovich, and P H Whiting, and K R Page
Department of Medicine and Therapeutics, University of Aberdeen, Foresterhill, UK.

This study demonstrates that IgG transfer in vitro across the isolated perfused human placental lobule can be successfully studied by using natural forms of IgG. The transfer of anti-RhD IgG (anti-D) was measured in the presence and absence of intravenous immunoglobulin (IVIgG). When anti-D and IVIgG were present alone each crossed the placenta at about the same rate, but when both forms were present at the same time the movement of one interfered with the movement of the other. This pattern of transfer is consistent with receptor-mediated transcytosis. The interactions of IgG with trophoblastic transporters may therefore be studied without the complications that might arise from the use of conventionally labelled molecules.

UI MeSH Term Description Entries
D007074 Immunoglobulin G The major immunoglobulin isotype class in normal human serum. There are several isotype subclasses of IgG, for example, IgG1, IgG2A, and IgG2B. Gamma Globulin, 7S,IgG,IgG Antibody,Allerglobuline,IgG(T),IgG1,IgG2,IgG2A,IgG2B,IgG3,IgG4,Immunoglobulin GT,Polyglobin,7S Gamma Globulin,Antibody, IgG,GT, Immunoglobulin
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008431 Maternal-Fetal Exchange Exchange of substances between the maternal blood and the fetal blood at the PLACENTA via PLACENTAL CIRCULATION. The placental barrier excludes microbial or viral transmission. Transplacental Exposure,Exchange, Maternal-Fetal,Exposure, Transplacental,Maternal Fetal Exchange
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
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001692 Biological Transport The movement of materials (including biochemical substances and drugs) through a biological system at the cellular level. The transport can be across cell membranes and epithelial layers. It also can occur within intracellular compartments and extracellular compartments. Transport, Biological,Biologic Transport,Transport, Biologic
D016756 Immunoglobulins, Intravenous Immunoglobulin preparations used in intravenous infusion, containing primarily IMMUNOGLOBULIN G. They are used to treat a variety of diseases associated with decreased or abnormal immunoglobulin levels including pediatric AIDS; primary HYPERGAMMAGLOBULINEMIA; SCID; CYTOMEGALOVIRUS infections in transplant recipients, LYMPHOCYTIC LEUKEMIA, CHRONIC; Kawasaki syndrome, infection in neonates, and IDIOPATHIC THROMBOCYTOPENIC PURPURA. Antibodies, Intravenous,Human Intravenous Immunoglobulin,IV Immunoglobulin,IVIG,Intravenous Antibodies,Intravenous Immunoglobulin,Intravenous Immunoglobulins,Alphaglobin,Endobulin,Flebogamma DIF,Gamimmune,Gamimmune N,Gamimune,Gamimune N,Gammagard,Gammonativ,Gamunex,Globulin-N,IV Immunoglobulins,Immune Globulin Intravenous (Human),Immune Globulin, Intravenous,Immunoglobulins, Intravenous, Human,Intraglobin,Intraglobin F,Intravenous IG,Intravenous Immunoglobulins, Human,Iveegam,Modified Immune Globulin (Anti-Echovirus Antibody),Privigen,Sandoglobulin,Venimmune,Venoglobulin,Venoglobulin-I,Globulin N,Human Intravenous Immunoglobulins,Immunoglobulin, Human Intravenous,Immunoglobulin, IV,Immunoglobulin, Intravenous,Immunoglobulins, Human Intravenous,Immunoglobulins, IV,Intravenous Immune Globulin,Intravenous Immunoglobulin, Human,Venoglobulin I
D017452 Receptors, IgG Specific molecular sites on the surface of various cells, including B-lymphocytes and macrophages, that combine with IMMUNOGLOBULIN Gs. Three subclasses exist: Fc gamma RI (the CD64 antigen, a low affinity receptor), Fc gamma RII (the CD32 antigen, a high affinity receptor), and Fc gamma RIII (the CD16 antigen, a low affinity receptor). Antigens, CD16,Antigens, CD32,Antigens, CD64,CD16 Antigens,CD32 Antigens,CD64 Antigen,CD64 Antigens,Fc Gamma Receptor,Fc Receptors, gamma,Fc gamma Receptors,IgG Receptor,IgG Receptors,Leu-11 Antigen,Receptors, Fc gamma,gamma Fc Receptor,gamma Fc Receptors,CD 16 Antigens,CD 32 Antigens,CD 64 Antigens,CDw32 Antigens,Fc gamma RI,Fc gamma RII,Fc gamma RIII,Immunoglobulin G Receptor,Leu-11 Antigens,Antigen, CD64,Antigen, Leu-11,Antigens, CD 16,Antigens, CD 32,Antigens, CD 64,Antigens, CDw32,Antigens, Leu-11,Fc Receptor, gamma,Gamma Receptor, Fc,Leu 11 Antigen,Leu 11 Antigens,Receptor, Fc Gamma,Receptor, IgG,Receptor, Immunoglobulin G,Receptor, gamma Fc,Receptors, gamma Fc,gamma RI, Fc,gamma RII, Fc,gamma RIII, Fc,gamma Receptors, Fc

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