Metabolic correction of congenital erythropoietic porphyria by retrovirus-mediated gene transfer into Epstein-Barr virus-transformed B-cell lines. 1995

F Moreau-Gaudry, and F Mazurier, and M Bensidhoum, and C Ged, and H de Verneuil
Laboratoire de Biochimie Médicale et Biologie Moléculaire, Université de Bordeaux II, France.

Congenital erythropoietic porphyria (CEP) is an inherited metabolic disorder resulting from the accumulation of porphyrins because of defective uroporphyrinogen III synthase (UROIIIS). This autosomal recessive disorder is phenotypically heterogeneous with respect to the age of onset and the severity of the symptoms. Different exonic point mutations in the UROIIIS gene have been identified, providing phenotype-genotype correlations in this disease. Severe cases may be treated by bone marrow transplantation and are potential candidates for somatic gene therapy. Epstein-Barr virus-transformed B-cell lines from patients with CEP provide a model system for the disease. We have used retrovirus-mediated expression of UROIIIS to restore enzymatic activity in a B-cell line from a patient. We have also demonstrated the metabolic correction of the disease, ie, porphyrin accumulation into the deficient transduced cells was reduced to the normal level. These data show the potential of gene therapy for this disease.

UI MeSH Term Description Entries
D011166 Porphyrins A group of compounds containing the porphin structure, four pyrrole rings connected by methine bridges in a cyclic configuration to which a variety of side chains are attached. The nature of the side chain is indicated by a prefix, as uroporphyrin, hematoporphyrin, etc. The porphyrins, in combination with iron, form the heme component in biologically significant compounds such as hemoglobin and myoglobin. Porphyrin
D002461 Cell Line, Transformed Eukaryotic cell line obtained in a quiescent or stationary phase which undergoes conversion to a state of unregulated growth in culture, resembling an in vitro tumor. It occurs spontaneously or through interaction with viruses, oncogenes, radiation, or drugs/chemicals. Transformed Cell Line,Cell Lines, Transformed,Transformed Cell Lines
D004854 Herpesvirus 4, Human The type species of LYMPHOCRYPTOVIRUS, subfamily GAMMAHERPESVIRINAE, infecting B-cells in humans. It is thought to be the causative agent of INFECTIOUS MONONUCLEOSIS and is strongly associated with oral hairy leukoplakia (LEUKOPLAKIA, HAIRY;), BURKITT LYMPHOMA; and other malignancies. Burkitt Herpesvirus,Burkitt Lymphoma Virus,E-B Virus,EBV,Epstein-Barr Virus,Human Herpesvirus 4,Infectious Mononucleosis Virus,Burkitt's Lymphoma Virus,HHV-4,Herpesvirus 4 (gamma), Human,Burkitts Lymphoma Virus,E B Virus,E-B Viruses,Epstein Barr Virus,Herpesvirus, Burkitt,Infectious Mononucleosis Viruses,Lymphoma Virus, Burkitt,Mononucleosis Virus, Infectious,Mononucleosis Viruses, Infectious
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001402 B-Lymphocytes Lymphoid cells concerned with humoral immunity. They are short-lived cells resembling bursa-derived lymphocytes of birds in their production of immunoglobulin upon appropriate stimulation. B-Cells, Lymphocyte,B-Lymphocyte,Bursa-Dependent Lymphocytes,B Cells, Lymphocyte,B Lymphocyte,B Lymphocytes,B-Cell, Lymphocyte,Bursa Dependent Lymphocytes,Bursa-Dependent Lymphocyte,Lymphocyte B-Cell,Lymphocyte B-Cells,Lymphocyte, Bursa-Dependent,Lymphocytes, Bursa-Dependent
D012190 Retroviridae Family of RNA viruses that infects birds and mammals and encodes the enzyme reverse transcriptase. The family contains seven genera: DELTARETROVIRUS; LENTIVIRUS; RETROVIRUSES TYPE B, MAMMALIAN; ALPHARETROVIRUS; GAMMARETROVIRUS; RETROVIRUSES TYPE D; and SPUMAVIRUS. A key feature of retrovirus biology is the synthesis of a DNA copy of the genome which is integrated into cellular DNA. After integration it is sometimes not expressed but maintained in a latent state (PROVIRUSES). Leukemogenic Viruses,Leukoviruses,Oncornaviruses,Oncovirinae,Oncoviruses,Oncoviruses, Type C,RNA Tumor Viruses,Retroviruses,Type C Oncoviruses,C Oncovirus, Type,C Oncoviruses, Type,Leukemogenic Virus,Leukovirus,Oncornavirus,Oncovirus,Oncovirus, Type C,RNA Tumor Virus,Retrovirus,Tumor Virus, RNA,Tumor Viruses, RNA,Type C Oncovirus,Virus, Leukemogenic,Virus, RNA Tumor,Viruses, Leukemogenic,Viruses, RNA Tumor
D014576 Uroporphyrinogen III Synthetase An enzyme that catalyzes the cyclization of hydroxymethylbilane to yield UROPORPHYRINOGEN III and water. It is the fourth enzyme in the 8-enzyme biosynthetic pathway of HEME, and is encoded by UROS gene. Mutations of UROS gene result in CONGENITAL ERYTHROPOIETIC PORPHYRIA. Cosynthase,Uroporphyrinogen III Cosynthetase,Uroporphyrinogen Isomerase,Uroporphyrinogen-III Synthase,Cosynthetase, Uroporphyrinogen III,Isomerase, Uroporphyrinogen,Synthase, Uroporphyrinogen-III,Synthetase, Uroporphyrinogen III,Uroporphyrinogen III Synthase
D015316 Genetic Therapy Techniques and strategies which include the use of coding sequences and other conventional or radical means to transform or modify cells for the purpose of treating or reversing disease conditions. Gene Therapy,Somatic Gene Therapy,DNA Therapy,Gene Therapy, Somatic,Genetic Therapy, Gametic,Genetic Therapy, Somatic,Therapy, DNA,Therapy, Gene,Therapy, Somatic Gene,Gametic Genetic Therapies,Gametic Genetic Therapy,Genetic Therapies,Genetic Therapies, Gametic,Genetic Therapies, Somatic,Somatic Genetic Therapies,Somatic Genetic Therapy,Therapies, Gametic Genetic,Therapies, Genetic,Therapies, Somatic Genetic,Therapy, Gametic Genetic,Therapy, Genetic,Therapy, Somatic Genetic
D017092 Porphyria, Erythropoietic An autosomal recessive porphyria that is due to a deficiency of UROPORPHYRINOGEN III SYNTHASE in the BONE MARROW; also known as congenital erythropoietic porphyria. This disease is characterized by SPLENOMEGALY; ANEMIA; photosensitivity; cutaneous lesions; accumulation of hydroxymethylbilane; and increased excretion of UROPORPHYRINS and COPROPORPHYRINS. Deficiency of Uroporphyrinogen III Synthase,Erythropoietic Porphyria,Gunther's Disease,Porphyria, Erythropoietic, Congenital,Uroporphyrinogen III Synthase, Deficiency of,Congenital Erythropoietic Porphyria,Gunther Disease,Porphyria, Congenital Erythropoietic,UROS Deficiency,Congenital Erythropoietic Porphyrias,Erythropoietic Porphyria, Congenital,Erythropoietic Porphyrias,Erythropoietic Porphyrias, Congenital,Gunthers Disease,Porphyrias, Congenital Erythropoietic,Porphyrias, Erythropoietic
D018014 Gene Transfer Techniques The introduction of functional (usually cloned) GENES into cells. A variety of techniques and naturally occurring processes are used for the gene transfer such as cell hybridization, LIPOSOMES or microcell-mediated gene transfer, ELECTROPORATION, chromosome-mediated gene transfer, TRANSFECTION, and GENETIC TRANSDUCTION. Gene transfer may result in genetically transformed cells and individual organisms. Gene Delivery Systems,Gene Transfer Technique,Transgenesis,Delivery System, Gene,Delivery Systems, Gene,Gene Delivery System,Technique, Gene Transfer,Techniques, Gene Transfer,Transfer Technique, Gene,Transfer Techniques, Gene

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