Evidence map›Paper›PMID 29893470›Full record

ArticleJournal of cellular and molecular medicine2018

CIP2A facilitates the G1/S cell cycle transition via B-Myb in human papillomavirus 16 oncoprotein E6-expressing cells.

Yonghao Tian, Hanxiang Chen, Lijun Qiao, Wenhao Zhang, Jingyi Zheng, Weiming Zhao, Jason J Chen, Weifang Zhang

Open access · goldAbstract read
In one paragraph

Article in Journal of cellular and molecular medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.0field-weighted citation impact, top 20% 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

14 citing papers in PubMed, 18 citations in OpenAlex.

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  13. Presence and activity of HPV in primary lung cancer.Journal of cancer research and clinical oncology · 2018
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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

8 authors at 2 institutions in 2 countries.

Yonghao TianDepartment of Orthopedic Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China.
Hanxiang ChenDepartment of Microbiology and Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China.
Lijun QiaoCancer Research Center, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China.
Wenhao ZhangDepartment of Microbiology and Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China.
Jingyi ZhengDepartment of Microbiology and Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China.
Weiming ZhaoDepartment of Microbiology and Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China.ORCID 0000-0001-6894-8859
Jason J ChenCancer Research Center, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China.
Weifang ZhangDepartment of Microbiology and Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China.ORCID 0000-0003-4675-656X
Shandong University · CNQilu Hospital of Shandong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Infection with high-risk human papillomaviruses (HR-HPVs, including HPV-16, HPV-18, HPV-31) plays a central aetiologic role in the development of cervical carcinoma. The transforming properties of HR-HPVs mainly reside in viral oncoproteins E6 and E7. E6 protein degrades the tumour suppressor p53 and abrogates cell cycle checkpoints. Cancerous inhibitor of protein phosphatase 2A (CIP2A) is an oncoprotein that is involved in the carcinogenesis of many human malignancies. Our previous data showed that CIP2A was overexpressed in cervical cancer. However, the regulation of CIP2A by HPV-16E6 remains to be elucidated. In this study, we demonstrated that HPV-16E6 significantly up-regulated CIP2A mRNA and protein expression in a p53-degradation-dependent manner. Knockdown of CIP2A by siRNA inhibited viability and DNA synthesis and caused G1 cell cycle arrest of 16E6-expressing cells. Knockdown of CIP2A resulted in a significant reduction in the expression of cyclin-dependent kinase 1 (Cdk1) and Cdk2. Although CIP2A has been reported to stabilize c-Myc by inhibiting PP2A-mediated dephosphorylation of c-Myc, we have presented evidence that the regulation of Cdk1 and Cdk2 by CIP2A is dependent on transcription factor B-Myb rather than c-Myc. Taken together, our study reveals the role of CIP2A in abrogating the G1 checkpoint in HPV-16E6-expressing cells and helps in understanding the molecular basis of HPV-induced oncogenesis.

Indexed as

AutoantigensCDC2 Protein KinaseCell Cycle ProteinsCell SurvivalCyclin-Dependent Kinase 2ForeskinG1 Phase Cell Cycle CheckpointsGene Expression RegulationHost-Pathogen InteractionsHuman papillomavirus 16HumansIntracellular Signaling Peptides and ProteinsKeratinocytesMaleMembrane ProteinsOncogene Proteins, ViralAutoantigensCDC2 Protein KinaseCDK1 protein, humanCDK2 protein, humanCell Cycle ProteinsCIP2A protein, humanCyclin-Dependent Kinase 2E6 protein, Human papillomavirus type 16Intracellular Signaling Peptides and ProteinsMembrane ProteinsMYBL2 protein, humanOncogene Proteins, ViralRepressor ProteinsRNA, MessengerRNA, Small InterferingTrans-ActivatorsTumor Suppressor Protein p53B-MybCdk1CIP2AE6 oncoproteinG1/S transitionhuman papillomavirus

Identifiers

PMID29893470
PMCPMC6111863
OpenAlexW2808128396

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.