Cited by 89MicroRNA in disease regulationAcute Lymphoblastic Leukemia researchCancer-related molecular mechanisms research

Discovery of new microRNAs by small RNAome deep sequencing in childhood acute lymphoblastic leukemia

Schotte, D, Moqadam, F Akbari, Lange-Turenhout, E A M, Chen, C, van IJcken, W F J, Pieters, R, den Boer, M L·2011·Leukemia

Abstract

MicroRNAs (miRNAs) relevant to acute lymphoblastic leukemia (ALL) in children are hypothesized to be largely unknown as most miRNAs have been identified in non-leukemic tissues. In order to discover these miRNAs, we applied high-throughput sequencing to pooled fractions of leukemic cells obtained from 89 pediatric cases covering seven well-defined genetic types of ALL and normal hematopoietic cells. This resulted into 78 million small RNA reads representing 554 known, 28 novel and 431 candidate novel miR genes. In all, 153 known, 16 novel and 170 candidate novel mature miRNAs and miRNA-star strands were only expressed in ALL, whereas 140 known, 2 novel and 82 candidate novel mature miRNAs and miRNA-star strands were unique to normal hematopoietic cells. Stem-loop reverse transcriptase (RT)-quantitative PCR analyses confirmed the differential expression of selected mature miRNAs in ALL types and normal cells. Expression of 14 new miRNAs inversely correlated with expression of predicted target genes (-0.49 ≤ Spearman's correlation coefficients (Rs)≤ -0.27, P ≤ 0.05); among others, low levels of novel sol-miR-23 associated with high levels of its predicted (antiapoptotic) target BCL2 (B-cell lymphoma 2) in precursor B-ALL (Rs -0.36, P = 0.007). The identification of >1000 miR genes expressed in different types of ALL forms a comprehensive repository for further functional studies that address the role of miRNAs in the biology of ALL.

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Crossref · 10.1038/leu.2011.105

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  • miR-23 is among differentially expressed miRNAs within 89 children cases with acute lymphoblastic leukemia by high throughput sequencing, and BCL2 was its anti-apoptotic target.

    “miR-23 is among the differentially expressed miRNAs within 89 children cases with acute lymphoblastic leukemia (ALL) by high throughput sequencing, and B-cell lymphoma 2 (BCL2) was its anti-apoptotic target [93].”

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Authors
Schotte, D., Moqadam, F. A., Lange-Turenhout, E. A. M., Chen, C., van IJcken, W. F. J., Pieters, R., & den Boer, M. L.
Affiliations
Erasmus MC (NL)
Venue
Leukemia
Published
2011-05-24
Volume
25
Issue
9
Pages
1389-1399
ISSN
  • 0887-6924 (ISSN-L)
  • 1476-5551
OpenAlex
W2057346914
Cited by
89
References
48
Citations by year
2026: 1 · 2025: 2 · 2024: 3 · 2023: 1 · 2022: 4 · 2021: 2 · 2020: 5 · 2019: 9 · 2018: 10 · 2017: 7 · 2016: 6 · 2015: 4 · 2014: 5 · 2013: 15 · 2012: 12
FWCI
0.81
Type
journal article
Language
en
Open access
closed
Locations
  • Leukemia (publishedVersion)
  • PubMed (publishedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (publishedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Acute Lymphoblastic Leukemia research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer-related molecular mechanisms research
Keywords
microRNA, childhood acute lymphoblastic leukemia, novel miRNA discovery, miRNA target genes, Bcl-2, B-cell precursor acute lymphoblastic leukemia, miRNA expression profiling, normal hematopoietic cells
MeSH terms
Child, Humans, RNA, Gene Library, Sequence Analysis, DNA, Computational Biology, Gene Expression Profiling, MicroRNAs, Precursor Cell Lymphoblastic Leukemia-Lymphoma, High-Throughput Nucleotide Sequencing

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