Down-regulation of miR-92 in human plasma is a novel marker for acute leukemia patients

MicroRNAs are a family of 19- to 25-nucleotides noncoding small RNAs that primarily function as gene regulators. Aberrant microRNA expression has been described for several human malignancies, and this new class of small regulatory RNAs has both oncogenic and tumor suppressor functions. Despite this...

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Veröffentlicht in:PloS one 2009-05, Vol.4 (5), p.e5532-e5532
Hauptverfasser: Tanaka, Masami, Oikawa, Kosuke, Takanashi, Masakatsu, Kudo, Motoshige, Ohyashiki, Junko, Ohyashiki, Kazuma, Kuroda, Masahiko
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container_issue 5
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container_title PloS one
container_volume 4
creator Tanaka, Masami
Oikawa, Kosuke
Takanashi, Masakatsu
Kudo, Motoshige
Ohyashiki, Junko
Ohyashiki, Kazuma
Kuroda, Masahiko
description MicroRNAs are a family of 19- to 25-nucleotides noncoding small RNAs that primarily function as gene regulators. Aberrant microRNA expression has been described for several human malignancies, and this new class of small regulatory RNAs has both oncogenic and tumor suppressor functions. Despite this knowledge, there is little information regarding microRNAs in plasma especially because microRNAs in plasma, if exist, were thought to be digested by RNase. Recent studies, however, have revealed that microRNAs exist and escape digestion in plasma. We performed microRNA microaray to obtain insight into microRNA deregulation in the plasma of a leukemia patient. We have revealed that microRNA-638 (miR-638) is stably present in human plasmas, and microRNA-92a (miR-92a) dramatically decreased in the plasmas of acute leukemia patients. Especially, the ratio of miR-92a/miR-638 in plasma was very useful for distinguishing leukemia patients from healthy body. The ratio of miR-92a/miR-638 in plasma has strong potential for clinical application as a novel biomarker for detection of leukemia.
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subjects Aberration
Acute leukemia
Antigens
Apoptosis
Biomarkers
Biotechnology
Blood plasma
Dendritic cells
Deregulation
Female
Gene expression
Gene Expression Regulation, Neoplastic - genetics
Gene Expression Regulation, Neoplastic - physiology
Heat shock proteins
Hematology/Acute Myeloid Leukemia
Humans
In Situ Hybridization
Leukemia
Leukemia - blood
Leukemia - genetics
Leukemia, Myeloid, Acute - blood
Leukemia, Myeloid, Acute - genetics
Lung cancer
Male
Mass spectrometry
Medical research
Melanoma
MicroRNA
MicroRNAs
MicroRNAs - blood
MicroRNAs - genetics
miRNA
Nucleotides
Oligonucleotide Array Sequence Analysis
Pathology
Pathology/Molecular Pathology
Patients
Plasma
Plasmas
Plasmas (physics)
Precursor Cell Lymphoblastic Leukemia-Lymphoma - blood
Precursor Cell Lymphoblastic Leukemia-Lymphoma - genetics
Regulators
Reverse Transcriptase Polymerase Chain Reaction
Ribonuclease
Ribonucleic acid
RNA
Scientific imaging
Tumor suppressor genes
title Down-regulation of miR-92 in human plasma is a novel marker for acute leukemia patients
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