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- W2036639305 abstract "Acute intermittent porphyria (AIP) is an inborn error of heme synthesis in which the third enzyme, porphobilinogen deaminase (PBGD), is deficient. The disease is characterized by recurrent attacks of acute abdominal pain often accompanied by neuropsychiatric symptoms. Current therapeutic treatment with heme is only palliative and no curative alternative exists. The present report describes the first step towards a gene therapy treatment for AIP. Mouse cDNA encoding the PBGD enzyme was cloned and four vectors containing the full-length mouse and human cDNA of the housekeeping and erythroid PBGD isoforms under the control of a cytomegalovirus promoter were constructed. The vectors, condensed to polyethylenimine, were successfully transfected to NIH 3T3 and HeLa cells as determined by enzymatic activity measurements. Thus, the PBGD activity was increased 3-10 times in NIH 3T3 cells and 95-240 times in HeLa cells. The expression was shown to be dose and time dependent, with the highest level of activity observed in HeLa cells after 72 h posttransfection. Non-viral gene transfer was also undertaken in PBGD-deficient fibroblasts established from an AIP patient. Complete normalization of the PBGD activity was accomplished after the addition of 2.5 microg DNA per well. Further addition of DNA increased the PBGD activity up to threefold the normal value. The study documents a successful gene transfer and a high degree of PBGD expression in different cell-lines, indicating a potential for future gene therapy in AIP." @default.
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- W2036639305 date "2002-01-01" @default.
- W2036639305 modified "2023-10-01" @default.
- W2036639305 title "Non-viral mediated gene transfer of porphobilinogen deaminase into mammalian cells" @default.
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- W2036639305 doi "https://doi.org/10.1080/003655102753611726" @default.
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