Evidence map›Paper›PMID 25961580›Full record

ArticlePloS one2015

Shikonin Suppresses Skin Carcinogenesis via Inhibiting Cell Proliferation.

Wenjuan Li, Chunjing Zhang, Amy Ren, Teena Li, Rong Jin, Guohong Li, Xin Gu, Runhua Shi, Yunfeng Zhao

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.6field-weighted citation impact, top 36% 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

17 citing papers in PubMed, 30 citations in OpenAlex.

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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

9 authors at 1 institution in 1 country.

Wenjuan LiDepartment of Pharmacology, Toxicology & Neuroscience, LSU Health Sciences Center in Shreveport, Shreveport, Louisiana, United States of America.
Chunjing ZhangDepartment of Pharmacology, Toxicology & Neuroscience, LSU Health Sciences Center in Shreveport, Shreveport, Louisiana, United States of America.
Amy RenDepartment of Pharmacology, Toxicology & Neuroscience, LSU Health Sciences Center in Shreveport, Shreveport, Louisiana, United States of America.
Teena LiDepartment of Pharmacology, Toxicology & Neuroscience, LSU Health Sciences Center in Shreveport, Shreveport, Louisiana, United States of America.
Rong JinDepartment of Neurosurgery, LSU Health Sciences Center in Shreveport, Shreveport, Louisiana, United States of America.
Guohong LiDepartment of Neurosurgery, LSU Health Sciences Center in Shreveport, Shreveport, Louisiana, United States of America.
Xin GuDepartment of Pathology, LSU Health Sciences Center in Shreveport, Shreveport, Louisiana, United States of America.
Runhua ShiFeist-Weiller Cancer Center, LSU Health Sciences Center in Shreveport, Shreveport, Louisiana, United States of America.
Yunfeng ZhaoDepartment of Pharmacology, Toxicology & Neuroscience, LSU Health Sciences Center in Shreveport, Shreveport, Louisiana, United States of America.
Louisiana State University Health Sciences Center Shreveport · US

Funding

The Role of CD147 in Ischemic Inflammation and Brain InjuryR01NS088719 · NINDS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI LI, GUOHONG · 2014 to 2018
$1.7M
PKM2 inhibition and redox regulation in chemopreventionR03CA167689 · NCI · LOUISIANA STATE UNIV HSC SHREVEPORT · PI ZHAO, YUNFENG · 2012 to 2013
$140k
NCI NIH HHS 1R03CA167689NCI NIH HHS R03 CA167689NINDS NIH HHS R01 NS088719
6 · The paper itself

Abstract

The M2 isoform of pyruvate kinase M2 (PKM2) has been shown to be up-regulated in human skin cancers. To test whether PKM2 may be a target for chemoprevention, shikonin, a natural product from the root of Lithospermum erythrorhizon and a specific inhibitor of PKM2, was used in a chemically-induced mouse skin carcinogenesis study. The results revealed that shikonin treatment suppressed skin tumor formation. Morphological examinations and immunohistochemical staining of the skin epidermal tissues suggested that shikonin inhibited cell proliferation without inducing apoptosis. Although shikonin alone suppressed PKM2 activity, it did not suppress tumor promoter-induced PKM2 activation in the skin epidermal tissues at the end of the skin carcinogenesis study. To reveal the potential chemopreventive mechanism of shikonin, an antibody microarray analysis was performed, and the results showed that the transcription factor ATF2 and its downstream target Cdk4 were up-regulated by chemical carcinogen treatment; whereas these up-regulations were suppressed by shikonin. In a promotable skin cell model, the nuclear levels of ATF2 were increased during tumor promotion, whereas this increase was inhibited by shikonin. Furthermore, knockdown of ATF2 decreased the expression levels of Cdk4 and Fra-1 (a key subunit of the activator protein 1. In summary, these results suggest that shikonin, rather than inhibiting PKM2 in vivo, suppresses the ATF2 pathway in skin carcinogenesis.

Indexed as

Gene Expression Regulation, Neoplastic9,10-Dimethyl-1,2-benzanthraceneActivating Transcription Factor 2AnimalsAntineoplastic Agents, PhytogenicApoptosisCarcinogensCarrier ProteinsCell LineCell ProliferationCell Transformation, NeoplasticCyclin-Dependent Kinase 4EpidermisEpithelial CellsFemaleFos-Related Antigen 19,10-Dimethyl-1,2-benzanthraceneActivating Transcription Factor 2Antineoplastic Agents, PhytogenicAtf2 protein, mouseCarcinogensCarrier ProteinsCdk4 protein, mouseCyclin-Dependent Kinase 4Fos-Related Antigen 1Membrane ProteinsNaphthoquinonesProto-Oncogene Proteins c-fosPyridinesshikoninThyroid Hormone-Binding ProteinsThyroid Hormonestris(2-pyridylmethyl)amine

Identifiers

PMID25961580
PMCPMC4427333
OpenAlexW995030439

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.