Evidence map›Paper›PMID 18521080›Full record

ArticleOncogene2008

MiR-221 controls CDKN1C/p57 and CDKN1B/p27 expression in human hepatocellular carcinoma.

F Fornari, L Gramantieri, M Ferracin, A Veronese, S Sabbioni, G A Calin, G L Grazi, C Giovannini, C M Croce, L Bolondi and 1 more

Abstract read
PubMed Publisher
In one paragraph

Article in Oncogene, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 330 papers.

0numbers the graph read from it
0cells of the map it votes in
330citing papers in PubMed
19.6field-weighted citation impact, top 1% 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

330 citing papers in PubMed, 639 citations in OpenAlex.

  1. Review
  2. Methylation marks breast cancer metastasis: The roles of mThe Journal of biological chemistry · 2026
    Review
  3. Article
  4. Review
  5. Current issues in molecular biology · 2026
    Article
  6. Review
  7. Review
  8. Review
  9. Review
  10. Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. MicroRNA in cancer therapy: breakthroughs and challenges in early clinical applications.Journal of experimental & clinical cancer research : CR · 2025
    Review
  19. Review
  20. Review

270 more citing papers are in PubMed but not listed here.

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

11 authors at 3 institutions in 2 countries.

F Fornari1Dipartimento di Medicina Interna e Gastroenterologia e Centro di Ricerca Biomedica Applicata, Università di Bologna, Policlinico S Orsola, Bologna, Italy.
L Gramantieri
M Ferracin
A Veronese
S Sabbioni
G A Calin
G L Grazi
C Giovannini
C M Croce
L Bolondi
M Negrini
University of Bologna · ITUniversity of Ferrara · ITThe Ohio State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The identification of target mRNAs is a key step for assessing the role of aberrantly expressed microRNAs in human cancer. MiR-221 is upregulated in human hepatocellular carcinoma (HCC) as well as in other malignancies. One proven target of miR-221 is CDKN1B/p27, whose downregulation affects HCC prognosis. Here, we proved that the cyclin-dependent kinase inhibitor (CDKI) CDKN1C/p57 is also a direct target of miR-221. Indeed, downregulation of both CDKN1B/p27 and CDKN1C/p57 occurs in response to miR-221 transfection into HCC-derived cells and a significant upregulation of both CDKN1B/p27 and CDKN1C/p57 occurs in response to antimiR-221 transfection. A direct interaction of miR-221 with a target site on the 3' UTR of CDKN1C/p57 mRNA was also demonstrated. By controlling these two CDKIs, upregulation of miR-221 can promote growth of HCC cells by increasing the number of cells in S-phase. To assess the relevance of these studies in primary tumors, matched HCC and cirrhosis samples were assayed for miR-221, for CDKN1B/p27 and CDKN1C/p57 expression. MiR-221 was upregulated in 71% of HCCs, whereas CDKN1B/p27 and CDKN1C/p57 proteins were downregulated in 77% of cases. A significant inverse correlation between miR-221 and both CDKN1B/p27 and CDKN1C/p57 was found in HCCs. In conclusion, we suggest that miR-221 has an oncogenic function in hepatocarcinogenesis by targeting CDKN1B/p27 and CDKN1C/p57, hence promoting proliferation by controlling cell-cycle inhibitors. These findings establish a basis toward the development of therapeutic strategies aimed at blocking miR-221 in HCC.

Indexed as

Gene Expression Regulation, Neoplastic3' Untranslated RegionsAgedAged, 80 and overCarcinoma, HepatocellularCell CycleCell Line, TumorCell ProliferationCyclin-Dependent Kinase Inhibitor p27Cyclin-Dependent Kinase Inhibitor p57FemaleHumansIntracellular Signaling Peptides and ProteinsLiver NeoplasmsMaleMicroRNAs3' Untranslated RegionsCDKN1B protein, humanCDKN1C protein, humanCyclin-Dependent Kinase Inhibitor p27Cyclin-Dependent Kinase Inhibitor p57Intracellular Signaling Peptides and ProteinsMicroRNAsMIR221, human

Identifiers

PMID18521080
OpenAlexW2015018301

What OpenQuestion holds

Textmetadata
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.