Evidence map›Paper›PMID 21831295›Full record

ArticleBMC cancer2011

Repression of human activation induced cytidine deaminase by miR-93 and miR-155.

Glen M Borchert, Nathaniel W Holton, Erik D Larson

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
3.1field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 49 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Activation-induced cytidine deaminase: in sickness and in health.Journal of cancer research and clinical oncology · 2020
    Review
  12. Article
  13. Epigenetic Priming in Immunodeficiencies.Frontiers in cell and developmental biology · 2019
    Review
  14. Review
  15. Review
  16. Article
  17. Article
  18. MicroRNAs in lupus.Autoimmunity · 2014
    Review
  19. Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Glen M BorchertSchool of Biological Sciences, Illinois State University, Normal, IL 61790-4120, USA.
Nathaniel W Holton
Erik D Larson
Illinois State University · US

Funding

The Role of Mismatch Repair Factors in Class Switch RecombinationR15CA137608 · NCI · ILLINOIS STATE UNIVERSITY · PI LARSON, ERIK · 2009 to 2009
$214k
NCI NIH HHS 01R15CA137608
6 · The paper itself

Abstract

backgroundActivation Induced cytidine Deaminase (AID) targets the immunoglobulin genes of activated B cells, where it converts cytidine to uracil to induce mutagenesis and recombination. While essential for immunoglobulin gene diversification, AID misregulation can result in genomic instability and oncogenic transformation. This is classically illustrated in Burkitt's lymphoma, which is characterized by AID-induced mutation and reciprocal translocation of the c-MYC oncogene with the IgH loci. Originally thought to be B cell-specific, AID now appears to be misexpressed in several epithelial cancers, raising the specter that AID may also participate in non-B cell carcinogenesis.

methodsThe mutagenic potential of AID argues for the existence of cellular regulators capable of repressing inappropriate AID expression. MicroRNAs (miRs) have this capacity, and we have examined the publically available human AID EST dataset for miR complementarities to the human AID 3'UTR. In this work, we have evaluated the capacity of two candidate miRs to repress human AID expression in MCF-7 breast carcinoma cells.

resultsWe have discovered moderate miR-155 and pronounced miR-93 complementary target sites encoded within the human AID mRNA. Luciferase reporter assays indicate that both miR-93 and miR-155 can interact with the 3'UTR of AID to block expression. In addition, over-expression of either miR in MCF-7 cells reduces endogenous AID protein, but not mRNA, levels. Similarly indicative of AID translational regulation, depletion of either miR in MCF-7 cells increases AID protein levels without concurrent increases in AID mRNA.

conclusionsTogether, our findings demonstrate that miR-93 and miR-155 constitutively suppress AID translation in MCF-7 cells, suggesting widespread roles for these miRs in preventing genome cytidine deaminations, mutagenesis, and oncogenic transformation. In addition, our characterization of an obscured miR-93 target site located within the AID 3'UTR supports the recent suggestion that many miR regulations have been overlooked due to the prevalence of truncated 3'UTR annotations.

Indexed as

Gene Expression Regulation, Neoplastic3' Untranslated RegionsAICDA (Activation-Induced Cytidine Deaminase)Blotting, WesternBreast NeoplasmsCell Line, TumorCytidine DeaminaseFemaleHEK293 CellsHumansMicroRNAsReverse Transcriptase Polymerase Chain ReactionRNA Interference3' Untranslated RegionsAICDA (Activation-Induced Cytidine Deaminase)Cytidine DeaminaseMicroRNAsMIRN155 microRNA, humanMIRN93 microRNA, human

Identifiers

PMID21831295
PMCPMC3163633
OpenAlexW2023861744

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.