Evidence map›Paper›PMID 27048300›Full record

ArticleMolecular neurodegeneration2016

Inhibition of the classical pathway of the complement cascade prevents early dendritic and synaptic degeneration in glaucoma.

Pete A Williams, James R Tribble, Keating W Pepper, Stephen D Cross, B Paul Morgan, James E Morgan, Simon W M John, Gareth R Howell

Open access · goldAbstract read
In one paragraph

Article in Molecular neurodegeneration, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 120 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
120citing papers in PubMed, 1 pooled it
13.7field-weighted citation impact, top 1% 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

120 citing papers in PubMed, 1 synthesis or guideline pooled it, 176 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Neuroinflammation in glaucoma: a myriad of cellular pathways and players.Mammalian genome : official journal of the International Mammalian Genome Society · 2026
    Review
  4. Review
  5. Article
  6. Article
  7. Complement in brain and eye disease: shared mechanisms, convergent pathologies, and common therapeutic opportunities.Mammalian genome : official journal of the International Mammalian Genome Society · 2026
    Review
  8. Article
  9. Review
  10. Article
  11. Review
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  14. Article
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60 more citing papers are in PubMed but not listed here.

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

8 authors at 3 institutions in 2 countries.

Pete A WilliamsThe Jackson Laboratory, Bar Harbor, ME, 04609, USA.
James R TribbleSchool of Optometry and Vision Sciences, Cardiff University, Cardiff, CF24 4HQ, UK.
Keating W PepperThe Jackson Laboratory, Bar Harbor, ME, 04609, USA.
Stephen D CrossSchool of Optometry and Vision Sciences, Cardiff University, Cardiff, CF24 4HQ, UK.
B Paul MorganInstitute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK.
James E MorganSchool of Optometry and Vision Sciences, Cardiff University, Cardiff, CF24 4HQ, UK.
Simon W M JohnThe Jackson Laboratory, Bar Harbor, ME, 04609, USA. simon.john@jax.org.
Gareth R HowellThe Jackson Laboratory, Bar Harbor, ME, 04609, USA. gareth.howell@Jax.org.
Cardiff University · GBJackson Laboratory · USTufts University · US

Funding

Factors Determining Intraocular Pressure and Glaucoma SusceptibilityR01EY011721 · NEI · JACKSON LABORATORY · PI JOHN, SIMON W · 2002 to 2018
$12.4M
Investigating Cell Specific Roles of the Complement Cascade in GlaucomaR01EY021525 · NEI · JACKSON LABORATORY · PI HOWELL, GARETH R · 2012 to 2016
$2.5M
FACTORS DETERMINING INTRAOCULAR PRESSURER29EY011721 · NEI · JACKSON LABORATORY · PI JOHN, SIMON W · 1997 to 2001
$227k
NEI NIH HHS EY011721NEI NIH HHS EY021525NEI NIH HHS R01 EY011721NEI NIH HHS R01 EY021525NEI NIH HHS R29 EY011721
6 · The paper itself

Abstract

backgroundGlaucoma is a complex, multifactorial disease characterised by the loss of retinal ganglion cells and their axons leading to a decrease in visual function. The earliest events that damage retinal ganglion cells in glaucoma are currently unknown. Retinal ganglion cell death appears to be compartmentalised, with soma, dendrite and axon changes potentially occurring through different mechanisms. There is mounting evidence from other neurodegenerative diseases suggesting that neuronal dendrites undergo a prolonged period of atrophy, including the pruning of synapses, prior to cell loss. In addition, recent evidence has shown the role of the complement cascade in synaptic pruning in glaucoma and other diseases.

resultsUsing a genetic (DBA/2J mouse) and an inducible (rat microbead) model of glaucoma we first demonstrate that there is loss of retinal ganglion cell synapses and dendrites at time points that precede axon or soma loss. We next determine the role of complement component 1 (C1) in early synaptic loss and dendritic atrophy during glaucoma. Using a genetic knockout of C1qa (D2.C1qa (-/-) mouse) or pharmacological inhibition of C1 (in the rat bead model) we show that inhibition of C1 is sufficient to preserve dendritic and synaptic architecture.

conclusionsThis study further supports assessing the potential for complement-modulating therapeutics for the prevention of retinal ganglion cell degeneration in glaucoma.

Indexed as

AnimalsComplement C1qDendritesDisease Models, AnimalGlaucomaMiceRatsRetinal Ganglion CellsSynapsesComplement C1qC1C1qaComplementDendriteGlaucomaRetinal ganglion cellSynapse

Identifiers

PMID27048300
PMCPMC4822272
OpenAlexW2317516423

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.