Evidence map›Paper›PMID 28880870›Full record

ArticlePloS one2017

C1-inactivator is upregulated in glioblastoma.

Karolina Förnvik, Aida Maddahi, Oscar Persson, Kurt Osther, Leif G Salford, Henrietta Nittby Redebrandt

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.0field-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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Systemic and local dysregulation of the complement system in glioma: a comprehensive systematic review.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
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  12. Growth pattern of experimental glioblastoma.Histology and histopathology · 2020
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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

6 authors at 2 institutions in 1 country.

Karolina FörnvikThe Rausing Laboratory, Division of Neurosurgery, Department of Clinical Sciences Lund, Lund University, Lund, Sweden.
Aida MaddahiThe Rausing Laboratory, Division of Neurosurgery, Department of Clinical Sciences Lund, Lund University, Lund, Sweden.
Oscar PerssonDepartment of Neurosurgery, Karolinska University Hospital, Stockholm, Sweden.
Kurt OstherOsther Consulting, LLC, Scottsdale, Arizona, United States of America.
Leif G SalfordThe Rausing Laboratory, Division of Neurosurgery, Department of Clinical Sciences Lund, Lund University, Lund, Sweden.
Henrietta Nittby RedebrandtThe Rausing Laboratory, Division of Neurosurgery, Department of Clinical Sciences Lund, Lund University, Lund, Sweden.ORCID http://orcid.org/0000-0003-0140-8107
Lund University · SEKarolinska University Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGlioblastoma is the most common and aggressive type of primary brain tumor in adults. A key problem is the capacity of glioma cells to inactivate the body's immune response. The complement system acts as a functional bridge between the innate and adaptive immune response. Still, the role of the complement system has almost been forgotten in glioma research. In our present study, we hypothesize that C1 inactivator (C1-IA) is upregulated in astrocytoma grade IV, and that its inhibition of the complement system has beneficial effects upon survival. METHODS AND

resultsWe have explored this hypothesis both on gene and protein levels and found an upregulation of C1-IA in human glioblastoma cells using data from a publicly available database and our own mRNA material from glioblastoma patients. Furthermore, we demonstrated the presence of C1-IA by using immunohistochemistry on glioma cells from both humans and rats in vitro. Finally, we could demonstrate a significantly increased survival in vivo in animals inoculated intracerebrally with glioma cells pre-coated with C1-IA antibodies as compared to control animals.

conclusionsOur findings indicate that overexpression of C1-IA is present in glioblastomas. This could be demonstrated both at the gene level from patients with glioblastoma, on mRNA level and with immunohistochemistry. Treatment with antibodies against C1-IA had beneficial effects on survival when tested in vivo.

Indexed as

AnimalsAstrocytomaBrain NeoplasmsCell Line, TumorComplement C1 Inhibitor ProteinFemaleGlioblastomaGliomaHumansImmunohistochemistryPregnancyRatsComplement C1 Inhibitor Protein

Identifiers

PMID28880870
PMCPMC5589086
OpenAlexW2752646661

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.