Abstract
To clarify whether expression of the programmed cell death 5 (PDCD5) gene in leukemic cells is abnormal, real-time quantitative reverse transcription polymerase chain reaction (RQ-RT-PCR) was used to examine its expression in marrow cells from leukemia patients. We found lower PDCD5 in both AML and CML marrow cells than in normal donor marrow cells. A negative correlation was found between relative levels of PDCD5 and BCR/ABL expression in all CML patients and in CML patients in the advanced phase. Treatment with the ABL tyrosine kinase inhibitor Imatinib mesylate increased PDCD5 expression in K562 and MEG-01 cells. These findings suggest that abnormal expression of PDCD5 in leukemia may be involved in the pathomechanism of AML and CML.
Publication types
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Comparative Study
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Research Support, Non-U.S. Gov't
MeSH terms
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Adult
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Apoptosis Regulatory Proteins / biosynthesis*
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Apoptosis Regulatory Proteins / genetics
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Benzamides
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Bone Marrow Cells / metabolism
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Bone Marrow Cells / pathology
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Female
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Fusion Proteins, bcr-abl / antagonists & inhibitors
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Fusion Proteins, bcr-abl / biosynthesis
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Fusion Proteins, bcr-abl / genetics
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Gene Expression Regulation, Leukemic* / drug effects
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Humans
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Imatinib Mesylate
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K562 Cells
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Leukemia, Myelogenous, Chronic, BCR-ABL Positive / drug therapy
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Leukemia, Myelogenous, Chronic, BCR-ABL Positive / genetics
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Leukemia, Myelogenous, Chronic, BCR-ABL Positive / metabolism*
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Leukemia, Myelogenous, Chronic, BCR-ABL Positive / pathology
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Leukemia, Myeloid, Acute / drug therapy
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Leukemia, Myeloid, Acute / genetics
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Leukemia, Myeloid, Acute / metabolism*
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Leukemia, Myeloid, Acute / pathology
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Male
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Neoplasm Proteins / biosynthesis*
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Neoplasm Proteins / genetics
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Piperazines / administration & dosage
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Piperazines / pharmacology
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Protein Kinase Inhibitors / administration & dosage
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Protein Kinase Inhibitors / pharmacology
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Pyrimidines / administration & dosage
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Pyrimidines / pharmacology
Substances
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Apoptosis Regulatory Proteins
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Benzamides
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Neoplasm Proteins
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PDCD5 protein, human
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Piperazines
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Protein Kinase Inhibitors
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Pyrimidines
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Imatinib Mesylate
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Fusion Proteins, bcr-abl