Evidence map›Paper›PMID 23029420›Full record

ArticlePloS one2012

Proteins with altered levels in plasma from glioblastoma patients as revealed by iTRAQ-based quantitative proteomic analysis.

Poonam Gautam, Sudha C Nair, Manoj Kumar Gupta, Rakesh Sharma, Ravindra Varma Polisetty, Megha S Uppin, Challa Sundaram, Aneel K Puligopu, Praveen Ankathi, Aniruddh K Purohit and 3 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 2 pooled it
4.2field-weighted citation impact, top 5% 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

46 citing papers in PubMed, 2 syntheses or guidelines pooled it, 88 citations in OpenAlex.

  1. Pooled it
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  4. Profiler: an open web platform for multi-omics analysis.Bioinformatics (Oxford, England) · 2026
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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

13 authors at 3 institutions in 1 country.

Poonam GautamCentre for Cellular and Molecular Biology (CSIR), Hyderabad, India.
Sudha C Nair
Manoj Kumar Gupta
Rakesh Sharma
Ravindra Varma Polisetty
Megha S Uppin
Challa Sundaram
Aneel K Puligopu
Praveen Ankathi
Aniruddh K Purohit
Giriraj R Chandak
H C Harsha
Ravi Sirdeshmukh
Centre for Cellular and Molecular Biology · INNizam's Institute of Medical Sciences · INInstitute of Bioinformatics · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Glioblastomas (GBMs) are the most common and lethal primary tumors of the central nervous system with high level of recurrence despite aggressive therapy. Tumor-associated proteins/peptides may appear in the plasma of these patients as a result of disruption of the blood-brain barrier in them, raising the scope for development of plasma-based tests for diagnosis and monitoring the disease. With this objective, we analyzed the levels of proteins present in the plasma from GBM patients using an iTRAQ based LC-MS/MS approach. Analysis with pooled plasma specimens from the patient and healthy control samples revealed high confidence identification of 296 proteins, of which 61 exhibited a fold-change ≥1.5 in the patient group. Forty-eight of them contained signal sequence. A majority have been reported in the differentially expressed transcript or protein profile of GBM tissues; 6 have been previously studied as plasma biomarkers for GBM and 16 for other types of cancers. Altered levels of three representative proteins-ferritin light chain (FTL), S100A9, and carnosinase 1 (CNDP1)-were verified by ELISA in a test set of ten individual plasma specimens. FTL is an inflammation marker also implicated in cancer, S100A9 is an important member of the Ca(2+) signaling cascade reported to be altered in GBM tissue, and CNDP1 has been reported for its role in the regulation of the levels of carnosine, implicated as a potential drug for GBM. These and other proteins in the dataset may form useful starting points for further clinical investigations for the development of plasma-based biomarker panels for GBM.

Indexed as

Gene Expression Regulation, NeoplasticApoferritinsBiomarkers, TumorBrain NeoplasmsCalciumCalgranulin BCarnosineChromatography, LiquidDipeptidasesEnzyme-Linked Immunosorbent AssayFemaleGlioblastomaHumansMaleMiddle AgedNeoplasm ProteinsApoferritinsBiomarkers, TumorCalciumCalgranulin BCarnosineCNDP1 protein, humanDipeptidasesFTL protein, humanNeoplasm Proteins

Identifiers

PMID23029420
PMCPMC3461020
OpenAlexW2030392052

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.