Evidence map›Paper›PMID 12189523›Full record

ArticleCancer gene therapy2002

Hematoprotection and enrichment of transduced cells in vivo after gene transfer of MGMT(P140K) into hematopoietic stem cells.

Michael Jansen, Ursula R Sorg, Susanne Ragg, Michael Flasshove, Siegfried Seeber, David A Williams, Thomas Moritz

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Cancer gene therapy, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.6field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 56 citations in OpenAlex.

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  6. Temozolomide - Just a Radiosensitizer?Frontiers in oncology · 2022
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  17. Gene therapy with drug resistance genes.Cancer gene therapy · 2006
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Michael JansenDepartment of Internal Medicine (Cancer Research), West German Cancer Center, University of Essen Medical School, Essen, Germany.
Ursula R Sorg
Susanne Ragg
Michael Flasshove
Siegfried Seeber
David A Williams
Thomas Moritz
West German Heart and Vascular Center Essen · DEHoward Hughes Medical Institute · USIndiana University – Purdue University Indianapolis · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The overexpression of mutant forms of O(6)-methylguanine-DNA-methyltransferase (MGMT), resistant to the MGMT inhibitor O(6)-benzylguanine (BG), protects hematopoietic cells from the toxicity of combined BG plus O(6)-alkylating agent chemotherapy. To evaluate the feasibility of this approach for clinically relevant O(6)-alkylating agents, combined therapy with BG and two chloroethylnitrosourea-type drugs, ACNU or BCNU, or the triazene derivative temozolomide (TMZ) was investigated in a murine bone marrow transplant model allowing transgenic expression of the highly BG-resistant MGMT(P140K) mutant. Whereas 20/20 control animals transplanted with nontransduced cells died of progressive myelosuppression during therapy, nearly all animals transplanted with MGMT(P140K)-transduced cells survived treatment with BG/ACNU (12/15), BG/TMZ (10/10), or BG/BCNU (5/5). In surviving animals, hematological parameters improved during chemotherapy and pretreatment levels were reestablished during or shortly after therapy. All animals showed enrichment of transgenic granulocytes (range: 15- to 101-fold) and lymphocytes (range: 16- to 55-fold) in peripheral blood, bone marrow, and spleen. No significant differences were observed between individual treatment groups. Serial transplants demonstrated protection in secondary recipients and confirmed the transduction of transplantable stem cells. Thus, these data demonstrate efficient protection from hematotoxicity and substantial enrichment of transgenic cells following MGMT(P140K) gene transfer and treatment with different O(6)-alkylating drugs.

Indexed as

Transduction, GeneticAnimalsAntineoplastic Agents, AlkylatingB-LymphocytesBone Marrow TransplantationDNA RepairDrug Resistance, NeoplasmEnzyme InhibitorsFemaleFluorouracilGenetic VectorsGranulocytesGreen Fluorescent ProteinsHematopoietic Stem CellsHumansInterleukin-6Antineoplastic Agents, AlkylatingEnzyme InhibitorsFluorouracilGreen Fluorescent ProteinsInterleukin-6Luminescent ProteinsO(6)-Methylguanine-DNA Methyltransferase

Identifiers

PMID12189523
OpenAlexW2031371983

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.