Molecular signature of penumbra in acute ischemic stroke: a pilot transcriptomics study

Zurab Nadareishvili, Devon Kelley, Marie Luby, Alexis N. Simpkins, Richard Leigh, John K. Lynch, Amie W. Hsia, Richard T. Benson, Kory R. Johnson, John M. Hallenbeck, Lawrence L. Latour

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We aimed to characterize peripheral blood gene expression profile of penumbra defined as MRI perfusion–diffusion mismatch (PD MM) in peripheral blood of patients with acute ischemic stroke. We studied 23 patients. Perfusion–diffusion mismatch volume was observed to be associated and significantly correlated with the expression of 34 genes including those related to inflammation, SUMOylation, and coagulation; while lipopolysaccharide inhibition was identified to be a candidate upstream regulator of these processes (z-score −2.38, P = 0.04). Penumbral volume is correlated with a specific gene expression profile in the peripheral blood characterized by overlap of inflammatory and neuroprotective pathways that are regulated by lipopolysaccharide inhibition.

Original languageEnglish (US)
Pages (from-to)817-820
Number of pages4
JournalAnnals of Clinical and Translational Neurology
Volume6
Issue number4
DOIs
StatePublished - Apr 2019
Externally publishedYes

ASJC Scopus subject areas

  • General Neuroscience
  • Clinical Neurology

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