Cited by 215Neuroscience and Neural EngineeringNeuroinflammation and Neurodegeneration MechanismsTraumatic Brain Injury and Neurovascular Disturbances

The DOI matches its Crossref record; 85 of the 85 references it cites were found in a registry or an index.

In vivo two-photon microscopy reveals immediate microglial reaction to implantation of microelectrode through extension of processes

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Abstract

OBJECTIVE: Penetrating cortical neural probe technologies allow investigators to record electrical signals in the brain. Implantation of probes results in acute tissue damage, and microglia density increases around implanted devices over weeks. However, the mechanisms underlying this encapsulation are not well understood in the acute temporal domain. The objective here was to evaluate dynamic microglial response to implanted probes using two-photon microscopy. APPROACH: Using two-photon in vivo microscopy, cortical microglia ∼200 µm below the surface of the visual cortex were imaged every minute in mice with green fluorescent protein-expressing microglia. MAIN RESULTS: Following probe insertion, nearby microglia immediately extended processes toward the probe at (1.6 ± 1.3) µm min(-1) during the first 30-45 min, but showed negligible cell body movement for the first 6 h. Six hours following probe insertion, microglia at distances <130.0 µm (p = 0.5) from the probe surface exhibit morphological characteristics of transitional stage (T-stage) activation, similar to the microglial response observed with laser-induced blood-brain barrier damage. T-stage morphology and microglia directionality indexes were developed to characterize microglial response to implanted probes. Evidence suggesting vascular reorganization after probe insertion and distant vessel damage was also observed hours after probe insertion. SIGNIFICANCE: A precise temporal understanding of the cellular response to microelectrode implantation will facilitate the search for molecular cues initiating and attenuating the reactive tissue response.

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Crossref · 10.1088/1741-2560/9/6/066001

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Show all 85 references

Research works printed but not linked: 4

  1. Betz A L, 1989, Cerebrovasc. Brain Metab. Rev., 1, 133
  2. Gilgunn P J Khilwani R Kozai T D Y Weber D J Cui X T Erdos G Ozdoganlar O B Fedder G K, 2012, 25th Int. Conf. on Micro Electro Mechanical Systems (MEMS), IEEE 2012, 56
  3. Kozai T D Y, 2010, J. Neural Eng., 7
  4. Nimmerjahn A, 2012, Cold Spring Harb. Protoc.

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Metadata

Authors
Kozai, T. D. Y., Vazquez, A. L., Weaver, C. L., Kim, S.-G., & Cui, X. T.
Affiliations
University of Pittsburgh (US)
Corresponding author
  • Kozai, Takashi D Yoshida
  • Cui, X Tracy
Venue
Journal of Neural Engineering
Published
2012-10-17
Volume
9
Issue
6
Pages
066001
ISSN
  • 1741-2552 (ISSN-L)
  • 1741-2560
OpenAlex
W2050826469
Cited by
215
References
85
Citations by year
2026: 13 · 2025: 12 · 2024: 20 · 2023: 21 · 2022: 16 · 2021: 19 · 2020: 19 · 2019: 15 · 2018: 16 · 2017: 17 · 2016: 15 · 2015: 15 · 2014: 12 · 2013: 3 · 2012: 1
FWCI
4.09
Type
journal article
Language
en
Open access
Locations
  • Journal of Neural Engineering (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Institute of Neurological Disorders and Stroke (5R01NS44589, R01NS044589, R01NS062019, K01NS066131)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Clinical Neurology › Traumatic Brain Injury and Neurovascular Disturbances
Keywords
microglia, microglial activation, visual cortex, two-photon microscopy, neuroprosthetics
MeSH terms
Algorithms, Animals, Blood-Brain Barrier, Brain, Craniotomy, Data Interpretation, Statistical, Electrodes, Implanted, Image Processing, Computer-Assisted, Mice, Transgenic, Microelectrodes, Microscopy, Visual Cortex, Microglia, Photons, Green Fluorescent Proteins, Mice

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