Evidence map›Paper›PMID 28306189›Full record

ArticleMolecular oncology2017

MAP4K4 is a novel MAPK/ERK pathway regulator required for lung adenocarcinoma maintenance.

Xuan Gao, Guangming Chen, Chenxi Gao, Dennis Han Zhang, Shih-Fan Kuan, Laura P Stabile, Guoxiang Liu, Jing Hu

Open access · goldAbstract read
In one paragraph

Article in Molecular oncology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

38 citing papers in PubMed, 62 citations in OpenAlex.

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  8. NInternational journal of biological sciences · 2025
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  19. [Establishment and Preliminary Analysis of Lung Cancer Cell Line A549 with StableSichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2022
    Article
  20. Article
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 3 institutions in 2 countries.

Xuan GaoDepartment of Respiratory Medicine, Southwest Hospital, Third Military Medical University, Chongqing, China.
Guangming ChenDepartment of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, PA, USA.
Chenxi GaoDepartment of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, PA, USA.
Dennis Han ZhangUniversity of Pittsburgh Dietrich School of Arts and Sciences, PA, USA.
Shih-Fan KuanDepartment of Pathology, University of Pittsburgh School of Medicine, PA, USA.
Laura P StabileDepartment of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, PA, USA.
Guoxiang LiuDepartment of Respiratory Medicine, Southwest Hospital, Third Military Medical University, Chongqing, China.
Jing HuDepartment of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, PA, USA.
University of Pittsburgh · USUPMC Hillman Cancer Center · USArmy Medical University · CN

Funding

HDAC2 in HDAC inhibitor-based therapy for CRCR01CA166197 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI HU, JING · 2012 to 2016
$1.5M
HDAC2 in OncogenesisR21CA175202 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI HU, JING · 2014 to 2015
$368k
NCI NIH HHS R01 CA166197NCI NIH HHS R21 CA175202
6 · The paper itself

Abstract

About 76% of patients with lung adenocarcinoma harbor activating mutations in the receptor tyrosine kinase (RTK)/RAS/RAF pathways, leading to aberrant activation of the mitogen-activated protein kinase (MAPK) pathways particularly the MAPK/ERK pathway. However, many lung adenocarcinomas lacking these genomic mutations also display significant MAPK pathway activation, suggesting that additional MAPK pathway alterations remain undetected. This study has identified serine/threonine kinase mitogen-activated protein 4 kinase 4 (MAP4K4) as a novel positive regulator of MAPK/ERK signaling in lung adenocarcinoma. The results showed that MAP4K4 was drastically elevated in lung adenocarcinoma independently of KRAS or EGFR mutation status. Knockdown of MAP4K4 inhibited proliferation, anchorage-independent growth and migration of lung adenocarcinoma cells, and also inhibited human lung adenocarcinoma xenograft growth and metastasis. Mechanistically, we found that MAP4K4 activated ERK through inhibiting protein phosphatase 2 activity. Our results further showed that downregulation of MAP4K4 prevented ERK reactivation in EGFR inhibitor erlotinib-treated lung adenocarcinoma cells. Together, our findings identify MAP4K4 as a novel MAPK/ERK pathway regulator in lung adenocarcinoma that is required for lung adenocarcinoma maintenance.

Indexed as

AdenocarcinomaAdenocarcinoma of LungAnimalsCell MovementCell ProliferationDown-RegulationErbB ReceptorsErlotinib HydrochlorideGene Knockdown TechniquesHumansIntracellular Signaling Peptides and ProteinsLung NeoplasmsMiceMice, NudeMitogen-Activated Protein Kinase KinasesProtein Kinase InhibitorsEGFR protein, humanErbB ReceptorsErlotinib HydrochlorideIntracellular Signaling Peptides and ProteinsKRAS protein, humanMAP4K4 protein, humanMitogen-Activated Protein Kinase KinasesProtein Kinase InhibitorsProtein Phosphatase 2Protein Serine-Threonine KinasesProto-Oncogene Proteins p21(ras)cell signalingEGFRERKlung adenocarcinomaMAP4K4

Identifiers

PMID28306189
PMCPMC5467491
OpenAlexW2596425928

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

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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.