Evidence map›Paper›PMID 26236150›Full record

ArticleMolecular vision2015

Astrocytes in the optic nerve head express putative mechanosensitive channels.

Hee Joo Choi, Daniel Sun, Tatjana C Jakobs

Open access · greenAbstract read
In one paragraph

Article in Molecular vision, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

90 citing papers in PubMed, 110 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Pericytes in the optic nerve head.Progress in retinal and eye research · 2025
    Review
  14. Article
  15. Considerations and implications of currentFrontiers in cell and developmental biology · 2025
    Review
  16. Article
  17. Review
  18. Mechanobiology in the eye.npj biological physics and mechanics · 2025
    Review
  19. Review
  20. Article

30 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

3 authors at 2 institutions in 1 country.

Hee Joo ChoiDepartment of Ophthalmology, Harvard Medical School, Massachusetts Eye and Ear Infirmary, Boston, MA.
Daniel SunDepartment of Ophthalmology, Harvard Medical School, Massachusetts Eye and Ear Infirmary, Boston, MA.
Tatjana C JakobsDepartment of Ophthalmology, Harvard Medical School, Massachusetts Eye and Ear Infirmary, Boston, MA.
Harvard University · USMassachusetts Eye and Ear Infirmary · US

Funding

Cell Biology of Astrocytes in the Optic Nerve HeadR01EY019703 · NEI · MASSACHUSETTS EYE AND EAR INFIRMARY · PI Tatjana Claudia Jakobs · 2009 to 2026
$6.2M
The Induction of Reactivity in Optic Nerve AstrocytesR01EY022092 · NEI · MASSACHUSETTS EYE AND EAR INFIRMARY · PI MASLAND, RICHARD HARRY · 2013 to 2015
$1.2M
NEI NIH HHS R01 EY019703NEI NIH HHS R01EY019703NEI NIH HHS R01 EY022092NEI NIH HHS R01EY022092
6 · The paper itself

Abstract

purposeTo establish whether optic nerve head astrocytes express candidate molecules to sense tissue stretch.

methodsWe used conventional PCR, quantitative PCR, and single-cell reverse transcription PCR (RT-PCR) to assess the expression of various members of the transient receptor potential (TRP) channel family and of the recently characterized mechanosensitive channels Piezo1 and 2 in optic nerve head tissue and in single, isolated astrocytes.

resultsMost TRP subfamilies (TRPC, TRPM, TRPV, TRPA, and TRPP) and Piezo1 and 2 were expressed in the optic nerve head of the mouse. Quantitative real-time PCR analysis showed that TRPC1, TRPM7, TRPV2, TRPP2, and Piezo1 are the dominant isoforms in each subfamily. Single-cell RT-PCR revealed that many TRP isoforms, TRPC1-2, TRPC6, TRPV2, TRPV4, TRPM2, TRPM4, TRPM6-7, TRPP1-2, and Piezo1-2, are expressed in astrocytes of the optic nerve head, and that most astrocytes express TRPC1 and TRPP1-2. Comparisons of the TRPP and Piezo expression levels between different tissue regions showed that Piezo2 expression was higher in the optic nerve head and the optic nerve proper than in the brain and the corpus callosum. TRPP2 also showed higher expression in the optic nerve head.

conclusionsAstrocytes in the optic nerve head express multiple putative mechanosensitive channels, in particular the recently identified channels Piezo1 and 2. The expression of putative mechanosensitive channels in these cells may contribute to their responsiveness to traumatic or glaucomatous injury.

Indexed as

AnimalsAstrocytesDisease Models, AnimalFemaleGlaucomaIntraocular PressureIon ChannelsMaleMiceMice, Inbred C57BLMice, Inbred DBAMice, TransgenicOptic DiskOptic Nerve InjuriesRNA, MessengerSingle-Cell AnalysisIon ChannelsPiezo1 protein, mousePiezo2 protein, mouseRNA, MessengerTransient Receptor Potential Channels

Identifiers

PMID26236150
PMCPMC4502055
OpenAlexW1612493531

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.