Articles

  • KSBNS 2024

Article

Review Article

Exp Neurobiol 2016; 25(5): 241-251

Published online October 31, 2016

https://doi.org/10.5607/en.2016.25.5.241

© The Korean Society for Brain and Neural Sciences

Inflammation after Ischemic Stroke: The Role of Leukocytes and Glial Cells

Jong Youl Kim1, Joohyun Park1,2, Ji Young Chang1, Sa-Hyun Kim3 and Jong Eun Lee1,2*

1Department of Anatomy, Yonsei University College of Medicine, 2Bk21 Plus Project for Medical Sciences and Brain Research Institute, Yonsei University College of Medicine, Seoul 03722, 3Department of Clinical Laboratory Science, Semyung University, Jaecheon 27136, Korea

Correspondence to: *To whom correspondence should be addressed.
TEL: 82-2-2228-1646, 1659, FAX: 82-2-365-0700
e-mail: jelee@yuhs.ac

Received: September 9, 2016; Revised: October 12, 2016; Accepted: October 17, 2016

Abstract

The immune response after stroke is known to play a major role in ischemic brain pathobiology. The inflammatory signals released by immune mediators activated by brain injury sets off a complex series of biochemical and molecular events which have been increasingly recognized as a key contributor to neuronal cell death. The primary immune mediators involved are glial cells and infiltrating leukocytes, including neutrophils, monocytes and lymphocyte. After ischemic stroke, activation of glial cells and subsequent release of pro- and anti-inflammatory signals are important for modulating both neuronal cell damage and wound healing. Infiltrated leukocytes release inflammatory mediators into the site of the lesion, thereby exacerbating brain injury. This review describes how the roles of glial cells and circulating leukocytes are a double-edged sword for neuroinflammation by focusing on their detrimental and protective effects in ischemic stroke. Here, we will focus on underlying characterize of glial cells and leukocytes under inflammation after ischemic stroke.

Keywords: ischemic stroke, inflammation, glial cells, leukocytes