Evidence map›Paper›PMID 25890710›Full record

ArticleBiomaterials2015

Microtopographical features generated by photopolymerization recruit RhoA/ROCK through TRPV1 to direct cell and neurite growth.

Shufeng Li, Bradley W Tuft, Linjing Xu, Marc A Polacco, Joseph C Clarke, C Allan Guymon, Marlan R Hansen

Abstract read
In one paragraph

Article in Biomaterials, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.7field-weighted citation impact, top 11% 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

17 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Transient Receptor Potential Channels in the Healthy and Diseased Blood-Brain Barrier.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2024
    Review
  5. Article
  6. Article
  7. TRP Channels Regulation of Rho GTPases in Brain Context and Diseases.Frontiers in cell and developmental biology · 2020
    Review
  8. Article
  9. Article
  10. Photopolymerized Microfeatures Guide Adult Spiral Ganglion and Dorsal Root Ganglion Neurite Growth.Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology · 2018
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
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

7 authors at 1 institution in 2 countries.

Shufeng LiDepartment of Otolaryngology-Head and Neck Surgery, University of Iowa, Iowa City, IA 52242, USA; Department of Otolaryngology, EYE & ENT Hospital of Fudan University, Shanghai 200031, China.
Bradley W TuftDepartment of Chemical and Biochemical Engineering, University of Iowa, Iowa City, IA 52242, USA.
Linjing XuDepartment of Otolaryngology-Head and Neck Surgery, University of Iowa, Iowa City, IA 52242, USA.
Marc A PolaccoDepartment of Otolaryngology-Head and Neck Surgery, University of Iowa, Iowa City, IA 52242, USA.
Joseph C ClarkeDepartment of Otolaryngology-Head and Neck Surgery, University of Iowa, Iowa City, IA 52242, USA.
C Allan GuymonDepartment of Chemical and Biochemical Engineering, University of Iowa, Iowa City, IA 52242, USA.
Marlan R HansenDepartment of Otolaryngology-Head and Neck Surgery, University of Iowa, Iowa City, IA 52242, USA; Department of Neurosurgery, University of Iowa, Iowa City, IA 52242, USA. Electronic address: marlan-hansen@uiowa.edu.
University of Iowa · US

Funding

Reduction of Intracochlear Trauma and Fibrosis Using Dual Network, Zwitterionic Hydrogel Thin Films on Cochlear Implant SurfacesR01DC012578 · NIDCD · UNIVERSITY OF IOWA · PI Allan Guymon, Marlan R Hansen · 2013 to 2026
$6.3M
Tissue Culture CoreP30DC010362 · NIDCD · UNIVERSITY OF IOWA · PI EBERL, DANIEL F, LOGSDON, JOHN M · 2010 to 2014
$2.0M
NIDCD NIH HHS P30 DC010362NIDCD NIH HHS R01 DC012578
6 · The paper itself

Abstract

Cell processes, including growth cones, respond to biophysical cues in their microenvironment to establish functional tissue architecture and intercellular networks. The mechanisms by which cells sense and translate biophysical cues into directed growth are unknown. We used photopolymerization to fabricate methacrylate platforms with patterned microtopographical features that precisely guide neurite growth and Schwann cell alignment. Pharmacologic inhibition of the transient receptor potential cation channel subfamily V member 1 (TRPV1) or reduced expression of TRPV1 by RNAi significantly disrupts neurite guidance by these microtopographical features. Exogenous expression of TRPV1 induces alignment of NIH3T3 fibroblasts that fail to align in the absence of TRPV1, further implicating TRPV1 channels as critical mediators of cellular responses to biophysical cues. Microtopographic features increase RhoA activity in growth cones and in TRPV1-expressing NIH3T3 cells. Further, Rho-associated kinase (ROCK) phosphorylation is elevated in growth cones and neurites on micropatterned surfaces. Inhibition of RhoA/ROCK by pharmacological compounds or reduced expression of either ROCKI or ROCKII isoforms by RNAi abolishes neurite and cell alignment, confirming that RhoA/ROCK signaling mediates neurite and cell alignment to microtopographic features. These studies demonstrate that microtopographical cues recruit TRPV1 channels and downstream signaling pathways, including RhoA and ROCK, to direct neurite and cell growth.

Indexed as

LightNeuritesAnimalsMiceNIH 3T3 CellsPolymerizationrhoA GTP-Binding ProteinTRPV Cation ChannelsrhoA GTP-Binding ProteinTRPV1 protein, mouseTRPV Cation ChannelsCell signalingMicropatterningNerve guidePhotopolymerizationSpiral ganglion neuronSurface topography

Identifiers

PMID25890710
PMCPMC4405664
OpenAlexW1989264593

What OpenQuestion holds

Textmetadata
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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.