Cited by 39Anesthesia and Neurotoxicity ResearchAnesthesia and Sedative AgentsBiomedical and Chemical Research

Inhaled anesthetics elicit region-specific changes in protein expression in mammalian brain

Pan, Jonathan Z., Xi, Jin, Eckenhoff, Maryellen F., Eckenhoff, Roderic G.·2008·PROTEOMICS

Abstract

Inhaled anesthetics bind specifically to many proteins in the mammalian brain. Within the subgroup of proteins whose activity is substantially modulated by anesthetic binding, it is reasonable to expect anesthetic-induced alterations in host expression level. Thus, in an attempt to define the group of functional targets for these commonly used drugs, we examined changes in protein expression after anesthetic exposure in both intact rodent brains and in neuronal cell culture. Differential in-gel electrophoresis was used to minimize variance, in order to detect small changes. Quantitative analysis shows that 5 h exposures to 1 minimum alveolar concentration (1 MAC) halothane caused changes in the expression of approximately 2% of detectable proteins, but only at 2-24 h after awakening, and only in the cortex. An equipotent concentration of isoflurane altered the expression of only approximately 1% of detectable proteins, and only in the hippocampus. Primary cortical neurons were exposed to three-fold higher concentrations of anesthetics with no evidence of cytotoxicity. Small changes in protein expression were elicited by both drugs. Despite the fact that anesthetics produce profound changes in neurobiology and behavior, we found only minor changes in brain protein expression. A pronounced degree of regional selectivity was noted, indicating an under appreciated degree of specificity for these promiscuous drugs.

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Crossref · 10.1002/pmic.200800057

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Authors
Pan, J. Z., Xi, J., Eckenhoff, M. F., & Eckenhoff, R. G.
Affiliations
University of Pennsylvania (US)
Corresponding author
Eckenhoff, Roderic G.
Venue
PROTEOMICS
Publisher
Wiley
Published
2008-07
Volume
8
Issue
14
Pages
2983-2992
ISSN
  • 1615-9853 (ISSN-L)
  • 1615-9861
OpenAlex
W1985594020
Cited by
39
References
40
Citations by year
2026: 3 · 2025: 2 · 2024: 1 · 2022: 3 · 2021: 3 · 2020: 3 · 2019: 3 · 2018: 1 · 2017: 3 · 2016: 1 · 2015: 1 · 2014: 2 · 2012: 4
FWCI
0.92
Type
journal article
Language
en
Open access
closed
Locations
  • PROTEOMICS (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • U.S. Public Health Service (51595)
  • National Institute of General Medical Sciences (P01GM055876)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Anesthesia and Neurotoxicity Research
  • Health Sciences › Medicine › Anesthesiology and Pain Medicine › Anesthesia and Sedative Agents
  • Health Sciences › Medicine › Surgery › Biomedical and Chemical Research
Keywords
inhalational anesthetics, halothane, isoflurane, brain protein expression, regional specificity, anesthetic targets, cortical neurons, hippocampus, cerebral cortex, differentially expressed proteins, anesthetic binding
MeSH terms
Animals, Cells, Cultured, Cerebral Cortex, Halothane, Hippocampus, Infusions, Intra-Arterial, Isoflurane, Male, Neurons, Protein Biosynthesis, Electrophoresis, Gel, Two-Dimensional, Rats, Sprague-Dawley, Anesthetics, Inhalation, Rats

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