Cited by 54MicroRNA in disease regulationCancer-related Molecular PathwaysLymphoma Diagnosis and Treatment

Up-Regulated Expression of miR-23a/b Targeted the Pro-Apoptotic Fas in Radiation-Induced thymic Lymphoma

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Li, Bailong, Sun, Mingjuan, Gao, Fu, Liu, Wen, Yang, Yanyong, Liu, Hu, Cheng, Ying, Liu, Cong +1 more·2013·Cellular Physiology and Biochemistry

Abstract

BACKGROUND: MicroRNAs (miRNAs) are small, single-stranded, noncoding RNAs, which usually bind to the 3'-untranslated region of target mRNAs and are capable of inducing posttranscriptional gene regulation by blocking translation or by degrading the target mRNA. However, the expression level of miR-23 in radiation induced carcinogenesis is largely unknown. METHODS: Radiation induced thymic lymphoma model in BALB/c mice was set up. miR-23a & miR-23b miRNA levels in different tissues and cells were detected by real-time qPCR. miR-23a/b inhibitor and miR-23a/b mimics were transfected to lymphoma cells and the target of miR-23a/b was identified by microRNA target prediction and Luciferase assays. RESULTS: We found that miR-23a & miR-23b were up-regulated in radiation induced thymic lymphoma tissue samples. Cell death and apoptosis were increased by miR-23a/b inhibitor and decreased by miR-23a/b mimics in lymphoma cells. Computational analysis found a putative target site of miR-23a/b in the 3'UTR of Fas mRNA, which was verified by luciferase reporter assay. Forced over-expression of miR-23a/b decreased the level of Fas protein. Moreover, over-expression of Fas rescued the pro-proliferation effect of miR-23, indicating Fas is a direct mediator of miR-23 functions. Furthermore, contrast to miR-23a/b which was up regulated, the Fas expression level was down-regulated and inversely correlated with miR-23 in split radiation induced lymphoma tissue samples. Finally, our data also indicates that miR-23a could repress Fas much more potent than miR-23b and the additional region besides conserved seed pairing enables miR-23a's higher regulation. CONCLUSIONS: In this study, using a radiation induced thymic lymphoma model in BALB/c mice, We conclude that the expression of miR-23a/b is up-regulated in radiation-induced thymic lymphoma and it maybe a novel therapeutic target of that cancer.

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  • Unlike the functional differentiation of miR-23a/miR-23b in ovarian cancer, their expression levels are upregulated in radiation-induced thymic lymphoma model mice and share a common target gene Fas.

    “Unlike the functional differentiation of miR-23a/miR-23b in OC, their expression levels are upregulated in radiation-induced thymic lymphoma model mice and share a common target gene Fas.”
  • Treatment by inhibitors of miR-23a/miR-23b can both boost cell death and apoptosis in lymphoma cells.

    “Treatment by inhibitors of miR-23a/miR-23b can both boost cell death and apoptosis in lymphoma cells [96].”

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Authors
Li, B., Sun, M., Gao, F., Liu, W., Yang, Y., Liu, H., Cheng, Y., Liu, C., & Cai, J.
Affiliations
Second Military Medical University (CN)
Venue
Cellular Physiology and Biochemistry
Publisher
S. Karger AG
Published
2013
Volume
32
Issue
6
Pages
1729-1740
ISSN
  • 1015-8987 (ISSN-L)
  • 1421-9778
OpenAlex
W2036859638
Cited by
54
References
55
Citations by year
2026: 1 · 2025: 1 · 2024: 3 · 2023: 3 · 2022: 1 · 2021: 2 · 2020: 4 · 2019: 6 · 2018: 6 · 2017: 5 · 2016: 9 · 2015: 8 · 2014: 5
FWCI
2.58
Type
journal article
Language
en
Open access
Locations
  • Cellular Physiology and Biochemistry (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Natural Science Foundation of China (31100605, 31070761)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Lymphoma Diagnosis and Treatment
Keywords
miR-23a, miR-23b, microRNA, Fas, radiation-induced thymic lymphoma, apoptosis, 3' untranslated region, post-transcriptional regulation, radiation-induced cancer
MeSH terms
Animals, Base Sequence, Binding Sites, Lymphoma, Mice, Inbred BALB C, Radiation, Ionizing, Thymus Neoplasms, Down-Regulation, Up-Regulation, Oligonucleotides, Antisense, Sequence Alignment, Apoptosis, fas Receptor, 3' Untranslated Regions, MicroRNAs, NIH 3T3 Cells, Cell Line, Tumor, Cell Proliferation, Mice

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