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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1995-10-20
pubmed:abstractText
We used an animal model system to transplant lethally-irradiated mice with one million marrow cells which had been: (1) collected from 5-fluorouracil (5-FU) treated mice; and (2) transduced with retroviruses containing a multiple drug resistance-1 (MDR-1) gene transcription unit. Following recovery from the transplant, we exposed these mice to doses of taxol ranging from 7 mg/kg to 30 mg/kg, which corresponds to doses of 68 to 268 mg/m2 in man. The median white blood cell count by 5 days after taxol (expressed as the percentage of the white blood cell count before taxol) was 83% (range 46-100%) in 11 courses of taxol in mice transplanted once with MDR-1 transduced marrow immediately after transplant, whereas the median white blood cell count by 5 days after taxol in mice not transplanted with MDR-1 marrow was 41% in nine courses of taxol (range 11-66%). This difference is statistically different at the P < 0.001 level (Wilcoxon test). One million marrow cells from the MDR-1 transplanted mice were harvested and serially transplanted through five additional cohorts of mice, and tested with taxol after each cohort. The white blood cell count (expressed as the percentage of pre-taxol white blood cell count) after each cohort ranged from 94-146% in the 29 mice transplanted with the transduced MDR-1 marrow, which had been through more than one transplant. This is statistically different from the median white blood cell count recovery after taxol in mice which have no human MDR-1 modified marrow (P < 0.001).(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:grant
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0969-7128
pubmed:author
pubmed:issnType
Print
pubmed:volume
2
pubmed:geneSymbol
MDR-1
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
279-84
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Resistance to taxol chemotherapy produced in mouse marrow cells by safety-modified retroviruses containing a human MDR-1 transcription unit.
pubmed:affiliation
Department of Hematology, University of Texas MD Anderson Cancer Center, Houston 77030, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't