Evidence map›Paper›PMID 20693879›Full record

ArticleAnesthesiology2010

Sevoflurane binds and allosterically blocks integrin lymphocyte function-associated antigen-1.

Koichi Yuki, Nathan S Astrof, Clay Bracken, Sulpicio G Soriano, Motomu Shimaoka

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Anesthesiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.5field-weighted citation impact, top 8% 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

30 citing papers in PubMed, 66 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Review
  5. Review
  6. Review
  7. The effect of anesthetics on toll like receptor 9.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020
    Article
  8. Article
  9. Translational perioperative and pain medicine · 2020
    Article
  10. Volatile anesthetics isoflurane and sevoflurane directly target and attenuate Toll-like receptor 4 system.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2019
    Article
  11. The volatile anesthetic sevoflurane reduces neutrophil apoptosisFASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2019
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Review
  20. Sepsis pathophysiology and anesthetic consideration.Cardiovascular & hematological disorders drug targets · 2015
    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

5 authors at 1 institution in 1 country.

Koichi YukiDepartment of Anesthesiology, Perioperative and Pain Medicine, Children's Hospital Boston, and Department of Anaesthesia, Harvard Medical School, Boston, Massachusetts 02115, USA.
Nathan S Astrof
Clay Bracken
Sulpicio G Soriano
Motomu Shimaoka
Harvard University · US

Funding

STRUCTURE OF INTEGRINS AND YWTD BETA PROPELLER DOMAINSP01HL048675 · NHLBI · IMMUNE DISEASE INSTITUTE, INC. · PI SPRINGER, TIMOTHY A · 1992 to 2009
$20.9M
Integrin-targeted siRNA delivery for therapeutic gene silencing in blood cancersR01CA139444 · NCI · IMMUNE DISEASE INSTITUTE, INC. · PI SPRINGER, TIMOTHY A · 2010 to 2014
$2.1M
Integrin LFA-1 antagonistsR01AI063421 · NIAID · IMMUNE DISEASE INSTITUTE, INC. · PI SHIMAOKA, MOTOMU · 2005 to 2009
$2.1M
Acquisition of a 500 MHz NMR SpectrometerS10RR023694 · NCRR · WEILL MEDICAL COLL OF CORNELL UNIV · PI BRACKEN, WILLIAM C · 2007 to 2007
$500k
NCI NIH HHS CA139444NCI NIH HHS R01 CA139444NCRR NIH HHS S10 RR023694NHLBI NIH HHS HL048675NHLBI NIH HHS P01 HL048675NIAID NIH HHS AI063421NIAID NIH HHS R01 AI063421
6 · The paper itself

Abstract

backgroundVolatile anesthetics have been shown to modify immune cell functions via several mechanisms, some of which have been only partially elucidated. We demonstrated that isoflurane inhibits primary leukocyte integrin lymphocyte function-associated antigen-1 (LFA-1) by binding to the allosteric cavity critical for conformational activation to its high-affinity form. It remains to be determined whether the allosteric inhibition of LFA-1 by isoflurane can be generalized to other anesthetics such as sevoflurane.

methodsThe effects of sevoflurane on the ability of LFA-1 to bind to its counter-ligand, intercellular adhesion molecule-1, was studied in leukocytes by flow cytometry. To examine whether sevoflurane acts directly on LFA-1, we measured ligand-binding using beads coated with purified LFA-1 protein. To distinguish between competitive versus allosteric inhibition, we analyzed the effects of sevoflurane on both wild-type and mutant-locked high-affinity LFA-1. One-way analysis of variance was employed for statistical analysis of the data. Nuclear magnetic resonance spectroscopy was used to identify sevoflurane binding site(s).

resultsSevoflurane at clinically relevant concentrations inhibited the ligand-binding function of LFA-1 in leukocytes as well as in cell-free assays (P<0.05). Sevoflurane blocked wild-type but not locked high-affinity LFA-1, thereby demonstrating an allosteric mode of inhibition. Nuclear magnetic resonance spectroscopy revealed that sevoflurane bound to the allosteric cavity, to which LFA-1 allosteric antagonists and isoflurane also bind.

conclusionsThis study suggests that sevoflurane also blocks the activation-dependent conformational changes of LFA-1 to the high-affinity form. The allosteric mode of action exemplified by sevoflurane and isoflurane via LFA-1 might represent one of the underlying mechanisms of anesthetic-mediated immunomodulation.

Indexed as

Allosteric SiteAnesthetics, InhalationHumansJurkat CellsLymphocyte Function-Associated Antigen-1Methyl EthersProtein BindingSevofluraneAnesthetics, InhalationLymphocyte Function-Associated Antigen-1Methyl EthersSevoflurane

Identifiers

PMID20693879
PMCPMC5209785
OpenAlexW2017112676

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.