Evidence map›Paper›PMID 33607476›Full record

ArticleEuropean journal of cancer (Oxford, England : 1990)2021

Identification of laminin γ2 as a prognostic and predictive biomarker for determining response to gemcitabine-based therapy in pancreatic ductal adenocarcinoma.

Yasuyuki Okada, Satoshi Nishiwada, Kensuke Yamamura, Masayuki Sho, Hideo Baba, Tetsuji Takayama, Ajay Goel

Open access · greenAbstract read
In one paragraph

Article in European journal of cancer (Oxford, England : 1990), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 25% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 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

7 authors at 5 institutions in 2 countries.

Yasuyuki OkadaDepartment of Molecular Diagnostics and Experimental Therapeutics, Beckman Research Institute of City of Hope Comprehensive Cancer Center, Duarte, CA, USA; Department of Gastroenterology and Oncology, Tokushima University Graduate School, Tokushima, Japan.
Satoshi NishiwadaDepartment of Molecular Diagnostics and Experimental Therapeutics, Beckman Research Institute of City of Hope Comprehensive Cancer Center, Duarte, CA, USA; Department of Surgery, Nara Medical University, Nara, Japan.
Kensuke YamamuraDepartment of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan.
Masayuki ShoDepartment of Surgery, Nara Medical University, Nara, Japan.
Hideo BabaDepartment of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan.
Tetsuji TakayamaDepartment of Gastroenterology and Oncology, Tokushima University Graduate School, Tokushima, Japan.
Ajay GoelDepartment of Molecular Diagnostics and Experimental Therapeutics, Beckman Research Institute of City of Hope Comprehensive Cancer Center, Duarte, CA, USA. Electronic address: ajgoel@coh.org.
City of Hope · USKumamoto University · JPCity Of Hope National Medical Center · USNara Medical University · JPTokushima University · JP

Funding

Noncoding RNA Biomarkers for Noninvasive and Early Detection of Pancreatic CancerU01CA214254 · NCI · BECKMAN RESEARCH INSTITUTE/CITY OF HOPE · PI Ajay Goel, DANIEL D VON HOFF · 2017 to 2026
$8.9M
The Biology and Diagnosis of HNPCCR01CA072851 · NCI · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI GOEL, AJAY · 1996 to 2019
$6.6M
Aspirin and Cancer Prevention in Lynch Syndrome: From Cell to Population DataU01CA187956 · NCI · BECKMAN RESEARCH INSTITUTE/CITY OF HOPE · PI GOEL, AJAY, WODARZ, DOMINIK F · 2014 to 2018
$2.7M
MicroRNA Biomarkers for Determining Treatment Response in Colorectal CancerR01CA202797 · NCI · BECKMAN RESEARCH INSTITUTE/CITY OF HOPE · PI GOEL, AJAY · 2016 to 2020
$1.9M
NCI NIH HHS R01 CA072851NCI NIH HHS R01 CA202797NCI NIH HHS U01 CA187956NCI NIH HHS U01 CA214254
6 · The paper itself

Abstract

backgroundPancreatic ductal adenocarcinoma (PDAC) is one of the most lethal malignancies. While the extracellular matrix component plays an integral role in PDAC pathogenesis and mediating chemoresistance, its role in predicting response to chemotherapy in patients with PDAC remains unclear.

methodsWe performed a systematic biomarker discovery by analysing genome-wide transcriptomic profiling data from 423 patients (GSE71729, GSE21501 and The Cancer Genome Atlas [TCGA]) for predicting overall survival (OS). This was subsequently validated in two independent clinical cohorts of 270 patients with PDAC (training cohort, n = 121, and validation cohort, n = 149). In addition, we investigated endoscopic ultrasound-fine needle aspiration biopsy specimens from 51 patients with PDAC with an unresectable cancer for predicting therapeutic response to gemcitabine-based therapy.

resultsAfter rigorous bioinformatic analysis, we identified laminin γ2 (LAMC2) to be a significant prognostic factor in all three PDAC data sets (GSE71729: hazard ratio [HR] = 2.04, P = 0.002; GSE21501: HR = 2.17, P = 0.031; TCGA: HR = 2.57, P < 0.001). High LAMC2 expression in patients with PDAC was associated with a significantly poor OS and relapse-free survival in both the training (P < 0.001, P < 0.001) and validation cohorts (P = 0.001, P = 0.026). More importantly, LAMC2 expression robustly identified patients with PDAC and unresectable disease and those who responded to gemcitabine-based therapy (area under the curve = 0.79; 95% confidence interval [CI], 0.65-0.89). The univariate logistic regression analysis revealed that high LAMC2 expression was the only factor that predicted poor response to gemcitabine in patients with PDAC (odds ratio = 4.90; 95% CI, 1.45-16.6; P = 0.011).

conclusionWe conclude that LAMC2 is a novel prognostic and predictive biomarker for gemcitabine-based therapy in both the adjuvant and palliative setting; which could have significant impact on precision and individualised treatment of patients with PDAC.

Indexed as

AgedAntimetabolites, AntineoplasticBiomarkers, TumorCarcinoma, Pancreatic DuctalDeoxycytidineFemaleFollow-Up StudiesGemcitabineGene Expression ProfilingHumansLamininMaleNeoplasm Recurrence, LocalPancreatic NeoplasmsPrognosisRetrospective StudiesAntimetabolites, AntineoplasticBiomarkers, TumorDeoxycytidineGemcitabineLAMC2 protein, humanLamininExtracellular matrixGemcitabineLAMC2Pancreatic ductal adenocarcinomaPredictive biomarker

Identifiers

PMID33607476
PMCPMC7940597
OpenAlexW3131961342

What OpenQuestion holds

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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.