Cited by 1,141MicroRNA in disease regulationCancer-related molecular mechanisms researchCancer-related Molecular Pathways

Programmed Cell Death 4 (PDCD4) Is an Important Functional Target of the MicroRNA miR-21 in Breast Cancer Cells

Open access
Frankel, Lisa B., Christoffersen, Nanna R., Jacobsen, Anders, Lindow, Morten, Krogh, Anders, Lund, Anders H.·2008·Journal of Biological Chemistry

Abstract

MicroRNAs are emerging as important regulators of cancer-related processes. The miR-21 microRNA is overexpressed in a wide variety of cancers and has been causally linked to cellular proliferation, apoptosis, and migration. Inhibition of mir-21 in MCF-7 breast cancer cells causes reduced cell growth. Using array expression analysis of MCF-7 cells depleted of miR-21, we have identified mRNA targets of mir-21 and have shown a link between miR-21 and the p53 tumor suppressor protein. We furthermore found that the tumor suppressor protein Programmed Cell Death 4 (PDCD4) is regulated by miR-21 and demonstrated that PDCD4 is a functionally important target for miR-21 in breast cancer cells.

Integrity signals

Registry

Crossref · 10.1074/jbc.m707224200

Cites

9 of 9 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Several mRNAs regulated by miR-21 and anti-miR-21 in glioma cells, including PDCD4, APAF1, FAM3C, SESN1, and GLCCI1, were also identified in an mRNA expression analysis of miR-21 knocked-down MCF7 breast carcinoma cells.

    “Several mRNAs regulated by miR-21 and anti-miR-21 in glioma cells (Fig. 3; also see Table S1 in the supplemental material) have recently been identified in an mRNA expression analysis of miR-21 knocked-down MCF7 breast carcinoma cells (14).”
  • miR-21 is upregulated in most solid tumors, including breast, colorectal and glioma.

    “It is upregulated in most solid tumors, including breast, colo-rectal and glioma [5, 10, 12].”

    From MicroRNA‐21 protects neurons from ischemic death (2010) · cites this paper as [10]

  • miR-21 has been shown to be a strong antiapoptotic factor.

    “In particular, miRNA-21 (miR-21) has been shown to be a strong antiapoptotic factor [5, 9–11].”

    From MicroRNA‐21 protects neurons from ischemic death (2010) · cites this paper as [10]

  • APAF1, BMPR2, PDCD4, and p21 are up-regulated in MCF-7 breast cancer cells with LNA-miR-21 treatment.

    “A subset of the derepressed transcripts, APAF1, BMPR2, PDCD4, and p21 were reported to be up-regulated in MCF-7 breast cancer cells with LNA-miR-21 treatment (15).”
  • Three miR-21 targets have been described: PTEN, PDCD4, and TPM1.

    “Three miR-21 targets have, thus far, been described: phosphatase and tensin homologue (PTEN), programmed cell death 4 (PDCD4) and Tropomyosin 1 (TPM1; refs.10,[14][15][16].”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Frankel, L. B., Christoffersen, N. R., Jacobsen, A., Lindow, M., Krogh, A., & Lund, A. H.
Affiliations
University of Copenhagen (DK)
Corresponding author
Lund, Anders H.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2008-01
Volume
283
Issue
2
Pages
1026-1033
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2069104846
Cited by
1,141
References
9
Citations by year
2026: 14 · 2025: 20 · 2024: 18 · 2023: 31 · 2022: 35 · 2021: 39 · 2020: 51 · 2019: 48 · 2018: 51 · 2017: 56 · 2016: 68 · 2015: 92 · 2014: 89 · 2013: 87 · 2012: 88
FWCI
28.59
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (publishedVersion)
Funders
Rigshospitalet
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer-related molecular mechanisms research
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
Keywords
PDCD4, miR-21, microRNA target regulation, breast cancer, MCF-7 cells, p53, tumor suppressor proteins, cell proliferation, gene expression profiling
MeSH terms
Base Sequence, Breast Neoplasms, Cell Division, Female, Humans, Kinetics, RNA, Neoplasm, RNA-Binding Proteins, Apoptosis, MicroRNAs, Cell Line, Tumor, Apoptosis Regulatory Proteins

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review