Abstract | OBJECTIVE: METHODS: Semi-quantitative reverse transcriptase-polymerase chain reaction (RT-PCR)was used to examine the expression of LRP gene in AL patients and 15 normal subjects. Beta(2) microglobulin (beta(2)MG) was used as internal reference. LRP/beta(2)MG ratio >or= 0.3 was defined as LRP positive. RESULTS: The positivity percentage of LRP gene expression in newly diagnosed group was 32.4%. The first complete remission rate was 84.0% and 33.0% in LRP negative and LRP positive patients, respectively. The difference was significant (P < 0.005). The expression level of LRP mRNA and the positivity percentage of LRP in relapsed/refractory group were significantly higher than that in newly diagnosed group (P < 0.01). The expression level of LRP gene in normal subjects and long-term survival groups was very low and correlated with FAB subtypes. The mdr-1 gene was examined simultaneously in 61 AL patients. No significant correlation was found between the expression of LRP and mdr-1 gene (P > 0.5). Coexpression of LRP and mdr-1 genes in the same AL patient might result in the worst prognosis. CONCLUSION: High expression of LRP gene leads to clinical drug resistance and is an unfavorable factor to AL patients of prognosis.
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Authors | J Ren, Z Dong, X Guo, F Wang, X Du, X Zhang, F Lin, E Yao |
Journal | Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi
(Zhonghua Xue Ye Xue Za Zhi)
Vol. 21
Issue 1
Pg. 10-3
(Jan 2000)
ISSN: 0253-2727 [Print] China |
PMID | 11876952
(Publication Type: English Abstract, Journal Article)
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Chemical References |
- Neoplasm Proteins
- Vault Ribonucleoprotein Particles
- major vault protein
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Topics |
- Acute Disease
- Adolescent
- Adult
- Aged
- Drug Resistance, Neoplasm
- Female
- Gene Expression
- Genes, MDR
- Humans
- Leukemia
(drug therapy, metabolism)
- Male
- Middle Aged
- Neoplasm Proteins
(genetics)
- Reverse Transcriptase Polymerase Chain Reaction
- Vault Ribonucleoprotein Particles
(genetics)
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