scholarly journals High-level reconstitution of respiratory burst activity in a human X- linked chronic granulomatous disease (X-CGD) cell line and correction of murine X-CGD bone marrow cells by retroviral-mediated gene transfer of human gp91phox

Blood ◽  
1996 ◽  
Vol 88 (5) ◽  
pp. 1834-1840 ◽  
Author(s):  
C Ding ◽  
A Kume ◽  
H Bjorgvinsdottir ◽  
RG Hawley ◽  
N Pech ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Gene Transfer ◽  
Respiratory Burst ◽  
Oxidase Activity ◽  
Bone Marrow Cells ◽  
Granulomatous Disease ◽  
Respiratory Burst Activity ◽  
High Level ◽  
Respiratory Burst Oxidase ◽  
Marrow Cells

Abstract The X-linked form of chronic granulomatous disease (X-CGD) results from mutations in the gene encoding gp91phox, a 91-kD membrane glycoprotein that is the larger subunit of the respiratory burst oxidase cytochrome b. In this study, a new retroviral vector for expression of human gp91phox, MSCV-h91Neo, based on murine stem cell virus vectors, was evaluated using a human X-CGD myeloid cell line (X-CGD PLB-985 cells) and murine bone marrow cells. Expression of recombinant gp91phox in transduced X-CGD PLB-985 cells was substantially improved compared with levels achieved previously using a different retroviral construct, and respiratory burst oxidase activity was fully reconstituted in the majority of clones analyzed. Expression of gp91phox transcripts was also observed in primary and secondary murine colony-forming unit- spleen derived from transduced bone marrow cells. Furthermore, respiratory burst activity was restored to granulocyte-monocyte progeny of transduced X-CGD mice bone marrow cells cultured in vitro. This observation is the first reported use of gene transfer to correct the enzymatic defect in murine CGD phagocytes and is also consistent with the high conservation of the oxidase complex among different species. Taken together, these data suggest that the MSCV-h91Neo vector may be useful for gene replacement therapy in X-linked CGD, in which high- level reconstitution of phagocyte oxidase activity may be important for full correction of phagocyte microbicidal function.

scholarly journals High-level reconstitution of respiratory burst activity in a human X- linked chronic granulomatous disease (X-CGD) cell line and correction of murine X-CGD bone marrow cells by retroviral-mediated gene transfer of human gp91phox

Blood ◽  
1996 ◽  
Vol 88 (5) ◽  
pp. 1834-1840 ◽  
Author(s):  
C Ding ◽  
A Kume ◽  
H Bjorgvinsdottir ◽  
RG Hawley ◽  
N Pech ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Gene Transfer ◽  
Respiratory Burst ◽  
Oxidase Activity ◽  
Bone Marrow Cells ◽  
Granulomatous Disease ◽  
Respiratory Burst Activity ◽  
High Level ◽  
Respiratory Burst Oxidase ◽  
Marrow Cells

The X-linked form of chronic granulomatous disease (X-CGD) results from mutations in the gene encoding gp91phox, a 91-kD membrane glycoprotein that is the larger subunit of the respiratory burst oxidase cytochrome b. In this study, a new retroviral vector for expression of human gp91phox, MSCV-h91Neo, based on murine stem cell virus vectors, was evaluated using a human X-CGD myeloid cell line (X-CGD PLB-985 cells) and murine bone marrow cells. Expression of recombinant gp91phox in transduced X-CGD PLB-985 cells was substantially improved compared with levels achieved previously using a different retroviral construct, and respiratory burst oxidase activity was fully reconstituted in the majority of clones analyzed. Expression of gp91phox transcripts was also observed in primary and secondary murine colony-forming unit- spleen derived from transduced bone marrow cells. Furthermore, respiratory burst activity was restored to granulocyte-monocyte progeny of transduced X-CGD mice bone marrow cells cultured in vitro. This observation is the first reported use of gene transfer to correct the enzymatic defect in murine CGD phagocytes and is also consistent with the high conservation of the oxidase complex among different species. Taken together, these data suggest that the MSCV-h91Neo vector may be useful for gene replacement therapy in X-linked CGD, in which high- level reconstitution of phagocyte oxidase activity may be important for full correction of phagocyte microbicidal function.

scholarly journals Retroviral-Mediated Gene Transfer of gp91phox Into Bone Marrow Cells Rescues Defect in Host Defense Against Aspergillus fumigatus in Murine X-Linked Chronic Granulomatous Disease

Blood ◽  
1997 ◽  
Vol 89 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Helga Björgvinsdóttir ◽  
Chunjin Ding ◽  
Nancy Pech ◽  
Mary A. Gifford ◽  
Ling Lin Li ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Gene Transfer ◽  
Aspergillus Fumigatus ◽  
Chronic Granulomatous Disease ◽  
Host Defense ◽  
Bone Marrow Cells ◽  
Superoxide Production ◽  
Granulomatous Disease ◽  
Wild Type ◽  
Marrow Cells

Abstract The X-linked form of chronic granulomatous disease (X-CGD), an inherited deficiency of the respiratory burst oxidase, results from mutations in the X-linked gene for gp91phox, the larger subunit of the oxidase cytochrome b. The goal of this study was to evaluate the impact of retroviral-mediated gene transfer of gp91phox on host defense against Aspergillus fumigatus in a murine model of X-CGD. Retrovirus vectors constructed using the murine stem cell virus (MSCV) backbone were used for gene transfer of the gp91phox cDNA into murine X-CGD bone marrow cells. Transduced cells were transplanted into lethally irradiated syngeneic X-CGD mice. After hematologic recovery, superoxide production, as monitored by the nitroblue tetrazolium (NBT) test, was detected in up to ≈80% of peripheral blood neutrophils for at least 28 to 35 weeks after transplantation. Neutrophil expression of recombinant gp91phox and superoxide production were significantly less than wild-type neutrophils. However, 9 of 9 mice with ≈50% to 80% NBT+ neutrophils after gene transfer did not develop lung disease after respiratory challenge with 150 to 500 A fumigatus spores, doses that produced disease in 16 of 16 control X-CGD mice. In X-CGD mice transplanted with mixtures of wild-type and X-CGD bone marrow, ≥5% wild-type neutrophils were required for protection against A fumigatus challenge. These data suggest that expression of even low levels of recombinant gp91phox can substantially improve phagocyte function in X-CGD, although correction of very small percentage of phagocytes may not be sufficient for protection against A fumigatus.

scholarly journals Retroviral-Mediated Gene Transfer of gp91phox Into Bone Marrow Cells Rescues Defect in Host Defense Against Aspergillus fumigatus in Murine X-Linked Chronic Granulomatous Disease

Blood ◽  
1997 ◽  
Vol 89 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Helga Björgvinsdóttir ◽  
Chunjin Ding ◽  
Nancy Pech ◽  
Mary A. Gifford ◽  
Ling Lin Li ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Gene Transfer ◽  
Aspergillus Fumigatus ◽  
Chronic Granulomatous Disease ◽  
Host Defense ◽  
Bone Marrow Cells ◽  
Superoxide Production ◽  
Granulomatous Disease ◽  
Wild Type ◽  
Marrow Cells

The X-linked form of chronic granulomatous disease (X-CGD), an inherited deficiency of the respiratory burst oxidase, results from mutations in the X-linked gene for gp91phox, the larger subunit of the oxidase cytochrome b. The goal of this study was to evaluate the impact of retroviral-mediated gene transfer of gp91phox on host defense against Aspergillus fumigatus in a murine model of X-CGD. Retrovirus vectors constructed using the murine stem cell virus (MSCV) backbone were used for gene transfer of the gp91phox cDNA into murine X-CGD bone marrow cells. Transduced cells were transplanted into lethally irradiated syngeneic X-CGD mice. After hematologic recovery, superoxide production, as monitored by the nitroblue tetrazolium (NBT) test, was detected in up to ≈80% of peripheral blood neutrophils for at least 28 to 35 weeks after transplantation. Neutrophil expression of recombinant gp91phox and superoxide production were significantly less than wild-type neutrophils. However, 9 of 9 mice with ≈50% to 80% NBT+ neutrophils after gene transfer did not develop lung disease after respiratory challenge with 150 to 500 A fumigatus spores, doses that produced disease in 16 of 16 control X-CGD mice. In X-CGD mice transplanted with mixtures of wild-type and X-CGD bone marrow, ≥5% wild-type neutrophils were required for protection against A fumigatus challenge. These data suggest that expression of even low levels of recombinant gp91phox can substantially improve phagocyte function in X-CGD, although correction of very small percentage of phagocytes may not be sufficient for protection against A fumigatus.

Enhancement of Adenovirus-Mediated Gene Transfer to Human Bone Marrow Cells

1998 ◽  
Vol 29 (5-6) ◽  
pp. 439-451 ◽  
Author(s):  
Tsutomu Watanabe ◽  
Linda Kelsey ◽  
Ana Ageitos ◽  
Charles Kuszynski ◽  
Kazuhiko Ino ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Gene Transfer ◽  
Bone Marrow Cells ◽  
Human Bone ◽  
Human Bone Marrow ◽  
Marrow Cells

scholarly journals Enhanced Green Fluorescent Protein as Selectable Marker of Retroviral-Mediated Gene Transfer in Immature Hematopoietic Bone Marrow Cells

Blood ◽  
1997 ◽  
Vol 90 (9) ◽  
pp. 3304-3315 ◽  
Author(s):  
Marti F.A. Bierhuizen ◽  
Yvonne Westerman ◽  
Trudi P. Visser ◽  
Wati Dimjati ◽  
Albertus W. Wognum ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Green Fluorescent Protein ◽  
Gene Transfer ◽  
Fluorescent Protein ◽  
Bone Marrow Cells ◽  
Retroviral Vector ◽  
Egfp Expression ◽  
Green Fluorescent ◽  
Marrow Cells

Abstract The further improvement of gene transfer into hematopoietic stem cells and their direct progeny will be greatly facilitated by markers that allow rapid detection and efficient selection of successfully transduced cells. For this purpose, a retroviral vector was designed and tested encoding a recombinant version of the Aequorea victoria green fluorescent protein that is enhanced for high-level expression in mammalian cells (EGFP). Murine cell lines (NIH 3T3, Rat2) and bone marrow cells transduced with this retroviral vector demonstrated a stable green fluorescence signal readily detectable by flow cytometry. Functional analysis of the retrovirally transduced bone marrow cells showed EGFP expression in in vitro clonogenic progenitors (GM-CFU), day 13 colony-forming unit-spleen (CFU-S), and in peripheral blood cells and marrow repopulating cells of transplanted mice. In conjunction with fluorescence-activated cell sorting (FACS) techniques EGFP expression could be used as a marker to select for greater than 95% pure populations of transduced cells and to phenotypically define the transduced cells using antibodies directed against specific cell-surface antigens. Detrimental effects of EGFP expression were not observed: fluorescence intensity appeared to be stable and hematopoietic cell growth was not impaired. The data show the feasibility of using EGFP as a convenient and rapid reporter to monitor retroviral-mediated gene transfer and expression in hematopoietic cells, to select for the genetically modified cells, and to track these cells and their progeny both in vitro and in vivo.

Circulating alpha-Galactosidase A Derived from Transduced Bone Marrow Cells: Relevance for Corrective Gene Transfer for Fabry Disease

1999 ◽  
Vol 10 (12) ◽  
pp. 1931-1939 ◽  
Author(s):  
Toshihiro Takenaka ◽  
Gangjian Qin ◽  
Roscoe O. Brady ◽  
Jeffrey A. Medin
Keyword(s):  
Bone Marrow ◽  
Gene Transfer ◽  
Fabry Disease ◽  
Bone Marrow Cells ◽  
Alpha Galactosidase ◽  
Marrow Cells

Variable correction of host defense following gene transfer and bone marrow transplantation in murine X-linked chronic granulomatous disease

Blood ◽  
2001 ◽  
Vol 97 (12) ◽  
pp. 3738-3745 ◽  
Author(s):  
Mary C. Dinauer ◽  
Mary A. Gifford ◽  
Nancy Pech ◽  
Ling Lin Li ◽  
Patricia Emshwiller
Keyword(s):  
Bone Marrow ◽  
Bone Marrow Transplantation ◽  
Gene Transfer ◽  
Nadph Oxidase ◽  
Host Defense ◽  
Marrow Transplantation ◽  
Oxidase Activity ◽  
Granulomatous Disease ◽  
Wild Type ◽  
Nadph Oxidase Activity

Chronic granulomatous disease (CGD) is an inherited immunodeficiency in which the absence of the phagocyte superoxide-generating nicotinamide adenine dinucleotide phosphate (NADPH) oxidase results in recurrent bacterial and fungal infections. A murine model of X-linked CGD (X-CGD) was used to explore variables influencing reconstitution of host defense following bone marrow transplantation and retroviral-mediated gene transfer. The outcomes of experimental infection with Aspergillus fumigatus, Staphylococcus aureus, orBurkholderia cepacia were compared in wild-type, X-CGD mice, and transplanted X-CGD mice that were chimeric for either wild-type neutrophils or neutrophils with partial correction of NADPH oxidase activity after retroviral-mediated gene transfer. Host defense to these pathogens was improved in X-CGD mice even with correction of a limited number of neutrophils. However, intact protection against bacterial pathogens required relatively greater numbers of oxidant-generating phagocytes compared to protection against A fumigatus. The host response also appeared to be influenced by the relative level of cellular NADPH oxidase activity, particularly forA fumigatus. These results may have implications for developing effective approaches for gene therapy of CGD.

scholarly journals Increased efficiency of retroviral-mediated gene transfer and expression in primate bone marrow progenitors after 5-fluorouracil- induced hematopoietic suppression and recovery

Blood ◽  
1991 ◽  
Vol 77 (3) ◽  
pp. 448-455
Author(s):  
R Wieder ◽  
K Cornetta ◽  
SW Kessler ◽  
WF Anderson
Keyword(s):  
Bone Marrow ◽  
Gene Transfer ◽  
Mononuclear Cells ◽  
Bone Marrow Cells ◽  
Transduction Efficiency ◽  
Bone Marrow Mononuclear Cells ◽  
Cell Content ◽  
Density Fraction ◽  
Light Density ◽  
Marrow Cells

To define conditions for improved efficiency of retroviral-mediated gene transfer and expression in primate progenitor cells, four rhesus monkeys were treated with a 200 mg/kg intravenous bolus of 5- fluorouracil (5-FU). The kinetics of hematopoietic suppression and recovery were assessed in peripheral blood, bone marrow mononuclear cells, and bone marrow cells fractionated in an albumin density gradient. Bone marrow mononuclear cells were transduced with N2, a retroviral vector carrying the bacterial neomycin phosphotransferase gene (NPT), which confers resistance to the otherwise toxic neomycin analogue, G418. Circulating colony-forming units-granulocyte-macrophage (CFU-GM) disappeared at 2 days. CFU-GM, transducible CFU-GM, CD34+ cells, and the percent of cells in cycle decreased at 3 days in unfractionated bone marrow cells and in a light density population known to be enriched for these progenitors and for stem cells. NPT activity in the light-density fraction, marginally detectable before treatment, disappeared at 3 days as well. At day 7 the CFU-GM plating efficiency, the CD34+ cell content, and the percentage of cells in cell cycle began to increase in the light-density fraction. The NPT assay became faintly positive again but the CFU-GM were not yet transducible, implying that it was an earlier progenitor population that was dividing and differentiating. By day 15, there was a marked rebound in all of the progenitors measured, and transduction efficiency assessed by G418R CFU-GM and NPT assay rebounded to several times pretreatment levels. The data suggest that CFU-GM are optimally transduced at 15 days but that earlier progenitors are more likely cycling and transducible before 5 days, a time when a gene transfer experiment would probably have the best chance to succeed.

scholarly journals Retroviral gene transfer of human adenosine deaminase in murine hematopoietic cells: effect of selectable marker sequences on long-term expression

Blood ◽  
1991 ◽  
Vol 78 (2) ◽  
pp. 310-317 ◽  
Author(s):  
JF Apperley ◽  
BD Luskey ◽  
DA Williams
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Stem Cell ◽  
Gene Transfer ◽  
Bone Marrow Cells ◽  
Selectable Marker ◽  
Retroviral Vector ◽  
G418 Selection ◽  
Marrow Cells

Retroviral-mediated gene transfer of human adenosine deaminase (hADA) provides a model system for the development of somatic gene therapy as a therapy for diseases of bone marrow-derived cells. We have previously demonstrated that hADA can be observed in all hematopoietic lineages in a minority of mice transplanted with bone marrow cells infected with a simplified retroviral vector, ZipPGK-ADA. Here we report a majority of mice (six of eight) demonstrate expression of hADA in the peripheral blood at least 6 months after transplantation with bone marrow infected with this simplified retroviral vector, which contains no selectable marker. The failure to express hADA in two of eight mice was associated with the absence of the recombinant retroviral provirus in DNA prepared from bone marrow cells of these mice apparently due to failure to efficiently infect the reconstituting hematopoietic stem cell. In an effort to preselect bone marrow stem cells containing proviral integrations, we incorporated the selectable marker neo phosphotransferase (NEO) into a retroviral vector encoding hADA, N2/ZipPGK-ADATKNEO, and used G418 selection of infected bone marrow cells before transplantation. In contrast to the simplified retroviral vector, hADA expression in these recipients was short lived (less than 8 weeks), despite the continued presence of intact provirus in DNA prepared from bone marrow of these mice. To determine whether the preselection of bone marrow using G418 was responsible for the lack of sustained hADA expression, we repeated the infection with the N2/ZipPGK- ADATKNEO vector but omitted the G418 selection step. Again, the majority of recipient mice failed to express hADA long term, although the continued presence of provirus in DNA prepared from peripheral blood cell mononuclear cells was clearly demonstrated. Finally, we demonstrate clonal fluctuation of infected stem cells, and observe a temporal correlation between cessation of expression of hADA and the emergence of a dominant stem cell clone between 14 and 20 weeks posttransplantation in one recipient. These data suggest that inclusion of a second transcriptional unit that includes neo phosphotransferase sequences in this simplified vector is associated with decreased expression of the nonselectable ADA sequences.

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