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Protection of bone marrow transplant recipients from lethal doses of methotrexate by the generation of methotrexate-resistant bone marrow

To develop a highly efficient means for generating methotrexate resistant (MTXr) hematopoietic cells in vivo, a recombinant retroviral genome was constructed that encodes a MTXr dihydrofolate reductase (DHFRr). Cell lines producing high titers of virus capable of transmitting the DHFR gene were gene...

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Detalles Bibliográficos
Formato: Texto
Lenguaje:English
Publicado: The Rockefeller University Press 1987
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2188648/
https://www.ncbi.nlm.nih.gov/pubmed/3298524
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description To develop a highly efficient means for generating methotrexate resistant (MTXr) hematopoietic cells in vivo, a recombinant retroviral genome was constructed that encodes a MTXr dihydrofolate reductase (DHFRr). Cell lines producing high titers of virus capable of transmitting the DHFR gene were generated and used to infect mammalian cells in vitro. Analysis of infected fibroblasts indicated that the DHFRr gene was transmitted intact and conferred a high level of MTXr upon cells. Based on these findings, DHFRr-containing virus was used to infect murine bone marrow cells in vitro. Following infection, the transduced cells were introduced into lethally irradiated recipients via bone marrow transplantation techniques. The presence of the proviral sequences in cells of the spleen and bone marrow of engrafted recipients was associated with significantly increased survival of mice treated with otherwise lethal doses of MTX.
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spelling pubmed-21886482008-04-17 Protection of bone marrow transplant recipients from lethal doses of methotrexate by the generation of methotrexate-resistant bone marrow J Exp Med Articles To develop a highly efficient means for generating methotrexate resistant (MTXr) hematopoietic cells in vivo, a recombinant retroviral genome was constructed that encodes a MTXr dihydrofolate reductase (DHFRr). Cell lines producing high titers of virus capable of transmitting the DHFR gene were generated and used to infect mammalian cells in vitro. Analysis of infected fibroblasts indicated that the DHFRr gene was transmitted intact and conferred a high level of MTXr upon cells. Based on these findings, DHFRr-containing virus was used to infect murine bone marrow cells in vitro. Following infection, the transduced cells were introduced into lethally irradiated recipients via bone marrow transplantation techniques. The presence of the proviral sequences in cells of the spleen and bone marrow of engrafted recipients was associated with significantly increased survival of mice treated with otherwise lethal doses of MTX. The Rockefeller University Press 1987-07-01 /pmc/articles/PMC2188648/ /pubmed/3298524 Text en This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/).
spellingShingle Articles
Protection of bone marrow transplant recipients from lethal doses of methotrexate by the generation of methotrexate-resistant bone marrow
title Protection of bone marrow transplant recipients from lethal doses of methotrexate by the generation of methotrexate-resistant bone marrow
title_full Protection of bone marrow transplant recipients from lethal doses of methotrexate by the generation of methotrexate-resistant bone marrow
title_fullStr Protection of bone marrow transplant recipients from lethal doses of methotrexate by the generation of methotrexate-resistant bone marrow
title_full_unstemmed Protection of bone marrow transplant recipients from lethal doses of methotrexate by the generation of methotrexate-resistant bone marrow
title_short Protection of bone marrow transplant recipients from lethal doses of methotrexate by the generation of methotrexate-resistant bone marrow
title_sort protection of bone marrow transplant recipients from lethal doses of methotrexate by the generation of methotrexate-resistant bone marrow
topic Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2188648/
https://www.ncbi.nlm.nih.gov/pubmed/3298524