Evidence map›Paper›PMID 26000554›Full record

ArticleLab on a chip2015

Passive microfluidic chamber for long-term imaging of axon guidance in response to soluble gradients.

A M Taylor, S Menon, S L Gupton

Abstract read
In one paragraph

Article in Lab on a chip, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

35 citing papers in PubMed, 67 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Neurons-on-a-Chip:Molecules and cells · 2022
    Review
  10. Lab-on-Chip Microsystems forFrontiers in bioengineering and biotechnology · 2022
    Review
  11. Unraveling Axon Guidance during Axotomy and Regeneration.International journal of molecular sciences · 2021
    Review
  12. Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Mechanistic advances in axon pathfinding.Current opinion in cell biology · 2020
    Review
  19. Article
  20. Review
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 3 institutions in 1 country.

A M TaylorUNC/NCSU Joint Department of Biomedical Engineering, UNC-Chapel Hill, Campus Box 7575, Chapel Hill NC 27599-7575, USA. amtaylor@unc.edu.
S Menon
S L Gupton
UNC Lineberger Comprehensive Cancer CenterUniversity of North Carolina at Chapel Hill · USUniversity of North Carolina Health Care · US

Funding

Interdisciplinary Engineering Career Development Center in Movement and Rehabilitation SciencesK12HD073945 · NICHD · NORTHWESTERN UNIVERSITY AT CHICAGO · PI DEWALD, JULIUS P, REINKENSMEYER, DAVID JAY · 2012 to 2021
$7.9M
A user-friendly scalable microfluidic platform for enhanced neuron-cell cultureR42MH097377 · NIMH · XONA MICROFLUIDICS, LLC · PI TAYLOR, ANNE MARION · 2016 to 2018
$2.0M
TRIM9 coordinates membrane trafficking and cytoskeletal dynamicsR01GM108970 · NIGMS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI GUPTON, STEPHANIE · 2014 to 2018
$1.6M
A user-friendly scalable microfluidic platform for enhanced neuron-cell cultureR41MH097377 · NIMH · XONA MICROFLUIDICS, LLC · PI TAYLOR, ANNE MARION · 2013 to 2014
$679k
NICHD NIH HHS K12 HD073945NICHD NIH HHS K12HD073945NIGMS NIH HHS GM108970NIGMS NIH HHS R01 GM108970NIMH NIH HHS R41 MH097377NIMH NIH HHS R41MH097377NIMH NIH HHS R42 MH097377
6 · The paper itself

Abstract

Understanding how axons are guided to target locations within the brain is of fundamental importance for neuroscience, and is a widely studied area of research. Biologists have an unmet need for reliable and easily accessible methods that generate stable, soluble molecular gradients for the investigation of axon guidance. Here we developed a microfluidic device with contiguous media-filled compartments that uses gravity-driven flow to generate a stable and highly reproducible gradient within a viewing compartment only accessible to axons. This device uses high-resistance microgrooves to both direct the growth of axons into an isolated region and to generate a stable gradient within the fluidically isolated axon viewing compartment for over 22 h. Establishing a stable gradient relies on a simple and quick pipetting procedure with no external pump or tubing. Since the axons extend into the axonal compartment through aligned microgrooves, the analysis of turning is simplified. Further, the multiple microgrooves in parallel alignment serve to increase sample sizes, improving statistical analyses. We used this method to examine growth cone turning in response to the secreted axon guidance cue netrin-1. We report the novel finding that growth cones of embryonic mouse cortical axons exhibited attractive turning in the lower concentrations of netrin-1, but were repulsed when exposed to higher concentrations. We also performed immunocytochemistry in growth cones exposed to a netrin-1 gradient within the axon viewing compartment and show that netrin receptors associated with both attraction and repulsion, DCC and UNC5H, localized to these growth cones. Together, we developed an accessible gradient chamber for higher throughput axon guidance studies and demonstrated its capabilities.

Indexed as

AnimalsAxonsCells, CulturedImmunohistochemistryMiceMice, Inbred C57BLMicrofluidic Analytical TechniquesMicroscopy, ConfocalNetrin ReceptorsNeuronsReceptors, Cell SurfaceNetrin ReceptorsReceptors, Cell Surface

Identifiers

PMID26000554
PMCPMC4485391
OpenAlexW1747968878

What OpenQuestion holds

Textmetadata
LicenceTDM
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.