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Distinction of acute lymphoblastic leukemia from acute myeloid leukemia through microarray-based DNA methylation analysis

Distinction of acute lymphoblastic leukemia from acute myeloid leukemia through microarray-based... Patterns of DNA methylation are substantially altered in malignancies compared to normal tissue, with both genome-wide hypomethylation and regional increase of cytosine methylation at dinucleotides of cytosine and guanine, i.<?A3B2 show $132#?>e., CpG dinucleotides. While genome-wide hypomethylation renders chromosomes instable, hypermethylation of CpGs in promoter regions is generally associated with transcriptional silencing, e.<?A3B2 show $132#?>g., of tumor suppressor genes. To investigate whether disease-specific methylation profiles exist for different entities of acute leukemia, a microarray-based DNA methylation analysis simultaneously assessing 249 CpG dinucleotides originating from 57 genes was employed. Hereby, samples from precursor B-cell acute lymphoblastic leukemia (ALL) could be distinguished from cases of acute myeloid leukemia by virtue of N33, EGR4, CDC2, CCND2, or MOS hypermethylation in ALL. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annals of Hematology Springer Journals

Distinction of acute lymphoblastic leukemia from acute myeloid leukemia through microarray-based DNA methylation analysis

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References (52)

Publisher
Springer Journals
Copyright
Copyright © 2005 by Springer-Verlag
Subject
Medicine
ISSN
0939-5555
eISSN
1432-0584
DOI
10.1007/s00277-004-0969-1
pmid
15538567
Publisher site
See Article on Publisher Site

Abstract

Patterns of DNA methylation are substantially altered in malignancies compared to normal tissue, with both genome-wide hypomethylation and regional increase of cytosine methylation at dinucleotides of cytosine and guanine, i.<?A3B2 show $132#?>e., CpG dinucleotides. While genome-wide hypomethylation renders chromosomes instable, hypermethylation of CpGs in promoter regions is generally associated with transcriptional silencing, e.<?A3B2 show $132#?>g., of tumor suppressor genes. To investigate whether disease-specific methylation profiles exist for different entities of acute leukemia, a microarray-based DNA methylation analysis simultaneously assessing 249 CpG dinucleotides originating from 57 genes was employed. Hereby, samples from precursor B-cell acute lymphoblastic leukemia (ALL) could be distinguished from cases of acute myeloid leukemia by virtue of N33, EGR4, CDC2, CCND2, or MOS hypermethylation in ALL.

Journal

Annals of HematologySpringer Journals

Published: Apr 1, 2005

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