Evidence map›Paper›PMID 27798689›Full record

ArticlePloS one2016

Clinical Significance of Tissue Factor Pathway Inhibitor 2, a Serum Biomarker Candidate for Ovarian Clear Cell Carcinoma.

Noriaki Arakawa, Hiroshi Kobayashi, Naohiro Yonemoto, Yusuke Masuishi, Yoko Ino, Hiroshi Shigetomi, Naoto Furukawa, Norihisa Ohtake, Yohei Miyagi, Fumiki Hirahara and 2 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 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

12 authors at 6 institutions in 1 country.

Noriaki ArakawaDepartment of Medical Life Science, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Kanagawa, Japan.
Hiroshi KobayashiDepartment of Obstetrics and Gynecology, Nara Medical University, Nara, Japan.
Naohiro YonemotoDepartment of Biostatistics, Center for Novel and Explanatory Clinical Trials (Y-NEXT), Yokohama City University, Yokohama, Kanagawa, Japan.
Yusuke MasuishiDepartment of Medical Life Science, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Kanagawa, Japan.
Yoko InoDepartment of Medical Life Science, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Kanagawa, Japan.
Hiroshi ShigetomiDepartment of Obstetrics and Gynecology, Nara Medical University, Nara, Japan.
Naoto FurukawaDepartment of Obstetrics and Gynecology, Nara Medical University, Nara, Japan.
Norihisa OhtakeBioscience Division, Reagent Development Department, Tosoh Corporation, Ayase, Kanagawa, Japan.
Yohei MiyagiResearch Institute, Kanagawa Cancer Center, Yokohama, Kanagawa, Japan.
Fumiki HiraharaYokohama City University Hospital, Department of Obstetrics and Gynecology, Yokohama, Kanagawa, Japan.
Hisashi HiranoDepartment of Medical Life Science, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Kanagawa, Japan.
Etsuko MiyagiYokohama City University Hospital, Department of Obstetrics and Gynecology, Yokohama, Kanagawa, Japan.
Nara Medical University · JPYokohama City University Medical Center · JPYokohama City University · JPYokohama City University Hospital · JPKanagawa Cancer CenterTosoh (Japan) · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is currently no reliable serum biomarker for ovarian clear cell carcinoma (CCC), a highly lethal histological subtype of epithelial ovarian cancer (EOC). Previously, using a proteome-based approach, we identified tissue factor pathway inhibitor 2 (TFPI2) as a candidate serum biomarker for CCC. In this study, we sought to evaluate the clinical diagnostic performance of TFPI2 in preoperative prediction of CCC.

methodsSerum TFPI2 levels were measured in serum samples from a retrospective training set consisting of patients with benign and borderline ovarian tumors, EOC subtypes, and uterine diseases. Via receiver operating characteristic (ROC) analyses, we compared the diagnostic performance of TFPI2 with that of CA125 in discrimination of patients with ovarian CCC from other patient groups. The observed diagnostic performances were examined in a prospective validation set.

resultsThe 268-patient training set included 29 patients with ovarian CCC. Unlike CA125, which was also elevated in patients with endometriosis and several EOC subtypes, serum TFPI2 levels were specifically elevated only in ovarian CCC patients, consistent with the mRNA expression pattern in tumor tissues. The area under the ROC curve (AUC) of serum TFPI2 was obviously higher than that of CA125 for discrimination of CCC from other ovarian diseases (AUC = 0.891 versus 0.595). Applying a cut-off value of 280 pg/mL, TFPI2 could distinguish early-stage (FIGO I and II) CCC from endometriosis with 72.2% sensitivity, 93.3% specificity, and 88.8% accuracy. Similar results were confirmed in an independent 156-patient prospective validation set.

conclusionsTFPI2 is a useful serum biomarker for preoperative clinical diagnosis of CCC.

Indexed as

Biomarkers, TumorAdenocarcinoma, Clear CellAdultAgedAged, 80 and overAge FactorsCA-125 AntigenCarcinoma, Ovarian EpithelialFemaleGenital Diseases, FemaleGlycoproteinsHumansMenstrual CycleMiddle AgedNeoplasm GradingNeoplasms, Glandular and EpithelialBiomarkers, TumorCA-125 AntigenGlycoproteinstissue-factor-pathway inhibitor 2

Identifiers

PMID27798689
PMCPMC5087914
OpenAlexW2543003712

What OpenQuestion holds

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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.