Evidence map›Paper›PMID 28442344›Full record

ArticleBiochemical and biophysical research communications2017

miR-221 regulates CD44 in hepatocellular carcinoma through the PI3K-AKT-mTOR pathway.

Jihye Kim, Jinmai Jiang, Mohamed Badawi, Thomas D Schmittgen

Abstract read
In one paragraph

Article in Biochemical and biophysical research communications, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% 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

36 citing papers in PubMed, 1 synthesis or guideline pooled it, 60 citations in OpenAlex.

  1. Pooled it
  2. Unifying and unique roles of non-coding RNA biomarkers in liver and heart fibrosis.Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2026
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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

4 authors at 2 institutions in 1 country.

Jihye KimCollege of Pharmacy, The Ohio State University, Columbus, OH, United States.
Jinmai JiangCollege of Pharmacy, University of Florida, Gainesville, FL, United States.
Mohamed BadawiCollege of Pharmacy, The Ohio State University, Columbus, OH, United States.
Thomas D SchmittgenCollege of Pharmacy, University of Florida, Gainesville, FL, United States. Electronic address: tschmittgen@ufl.edu.
The Ohio State University · USUniversity of Florida · US

Funding

miRNA Biomarkers for Hepatocellular Carcinoma Associated with Viral HepatitisR21CA170096 · NCI · OHIO STATE UNIVERSITY · PI SCHMITTGEN, THOMAS D. · 2012 to 2013
$419k
NCI NIH HHS R21 CA170096
6 · The paper itself

Abstract

CD44 and miR-221 are upregulated in hepatocellular carcinoma (HCC) cell lines and tumors, however a connection between the two has not been identified. As the expression of miR-221 directly correlated with CD44 in HCC cells, we hypothesized that miR-221 may directly or indirectly regulate CD44 expression. Inhibition of miR-221 with antisense in Sk-Hep-1 or SNU-449 cell lines reduced CD44 protein expression while miR-221 mimic increased CD44 protein levels. miR-221 antisense did not alter the CD44 mRNA levels in Sk-Hep-1 or SNU-449 cells suggesting that regulation of CD44 protein occurs post transcriptionally. To discover miRNAs that may be involved in the miR-221 regulation of CD44, we performed miRNA profiling in SNU-449 cells treated with anti-miR-221. Several miRNAs were increased with miR-221 inhibition including miR-708-5p, a miRNA that targets CD44. As miR-221 targets several regulators of the PI3K-AKT-mTOR pathway and a link between this pathway and CD44 has been previously shown in prostate cancer, we considered miR-221 regulation of CD44 may be through this pathway. Inhibition of miR-221 reduced p-4EBP1, a downstream effector of the PI3K-AKT-mTOR pathway. Likewise, inhibiting the PI3K-AKT-mTOR pathway with the ATP-competitive mTOR inhibitor PP242 reduced CD44 protein in SNU-423 and SNU-449 cells without altering CD44 mRNA levels.

Indexed as

Carcinoma, HepatocellularCell Line, TumorGene Expression Regulation, NeoplasticHep G2 CellsHumansHyaluronan ReceptorsLiver NeoplasmsMicroRNAsPhosphatidylinositol 3-KinaseProto-Oncogene Proteins c-aktSignal TransductionTOR Serine-Threonine KinasesCD44 protein, humanHyaluronan ReceptorsMicroRNAsMIR221, humanMTOR protein, humanPhosphatidylinositol 3-KinaseProto-Oncogene Proteins c-aktTOR Serine-Threonine KinasesCancermicroRNAmiR-708-5pmTOR

Identifiers

PMID28442344
PMCPMC5565483
OpenAlexW2606503266

What OpenQuestion holds

Textmetadata
LicenceTDM
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.