Evidence map›Paper›PMID 25182632›Full record

ArticleBMC cancer2014

Reduced expression of p21-activated protein kinase 1 correlates with poor histological differentiation in pancreatic cancer.

Juan Han, Feng Wang, Shu-qiang Yuan, Ying Guo, Zhao-lei Zeng, Li-ren Li, Jing Yang, De-sen Wang, Mei-yuan Liu, Han Zhao and 4 more

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 17% 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, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
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  3. pPeActa biochimica et biophysica Sinica · 2022
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  14. Expression of CDKN1A/p21 and TGFBR2 in breast cancer and their prognostic significance.International journal of clinical and experimental pathology · 2015
    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

14 authors at 4 institutions in 1 country.

Juan Han
Feng Wang
Shu-qiang Yuan
Ying Guo
Zhao-lei Zeng
Li-ren Li
Jing Yang
De-sen Wang
Mei-yuan Liu
Han Zhao
Kai-yan Liu
Jian-wei Liao
Qing-feng ZouDepartment of Medical Oncology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong 510060, China. zouqingfeng123@yeah.net.
Rui-hua Xu
Sun Yat-sen University · CNSun Yat-sen University Cancer Center · CNGuangzhou Medical University · CNGuangzhou Medical University Cancer Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundP21-activated protein kinase 1 (PAK1), a main downstream effector of small Rho GTPases, is overexpressed in many malignancies. PAK1 overexpression is associated with poor prognosis in some tumor types, including breast cancer, gastric cancer, and colorectal cancer. However, the expression and clinical relevance of PAK1 expression in human pancreatic cancer remains unknown.

methodsThe present study investigated the clinical and prognostic significance of PAK1 expression in pancreatic carcinoma. We examined and scored the expression of PAK1 by immunohistochemistry in 72 primary pancreatic carcinoma samples and 20 liver metastatic samples. The relationships between PAK1 and clinicopathological parameters and prognosis in primary and metastatic pancreatic cancer were analyzed.

resultsAmong the total 92 cases, primary pancreatic cancer samples had a significantly higher rate (38/72, 52.8%) of high PAK1 expression than liver metastatic samples (5/20, 25.0%) (P=0.028). Among the 72 primary pancreatic cancer patients, high PAK1 expression was associated with younger age (P=0.038) and moderately or well differentiated tumor (P=0.007). Moreover, a positive relationship was found between high PAK1 expression and overall survival (OS) (P<0.005). Patients with high PAK1 expression had a better OS than those with low PAK1 expression. Univariate and multivariate analysis by Cox regression including PAK1 and other prognostic pathological markers demonstrated high PAK1 immunostaining as a prognostic factor for survival in pancreatic cancer patients (P<0.005).

conclusionsWe report for the first time that PAK1 is a novel prognostic marker for pathologically confirmed human pancreatic cancer. Reduced expression of PAK1 correlates with poor histological differentiation in pancreatic cancer.

Indexed as

Gene ExpressionAdultAgedAge of OnsetFemaleHumansImmunohistochemistryMaleMiddle AgedNeoplasm GradingNeoplasm MetastasisNeoplasm Stagingp21-Activated KinasesPancreatic NeoplasmsPrognosisp21-Activated KinasesPAK1 protein, human

Identifiers

PMID25182632
PMCPMC4242600
OpenAlexW2079984607

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.