Related Experiment Video
Updated: Jul 9, 2026

Stereological and Flow Cytometry Characterization of Leukocyte Subpopulations in Models of Transient or Permanent Cerebral Ischemia
Published on: December 28, 2014
Characteristics of two different immune infiltrating pyroptosis subtypes in ischemic stroke
Yilei Xiao1, Zhen Wang2, Yexin Xin1
1Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng, 252000, Shangdong, China.
Background:
Ischemic stroke (IS) is a serious health hazard and identified as the second leading cause of mortality around the world. However, the role of pyroptosis in the immune microenvironment regulation in IS is still unclear. Here, our study aims to elucidate the effect of pyroptosis on immune microenvironment in IS.
Methods:
The regulation mode of pyroptosis in IS was systematically evaluated, and its effects on immune microenvironment were explored, including infiltration of immune cells, immune response gene sets, and human leukocyte antigen (HLA) gene. The genes and drugs related to pyroptosis phenotype were also identified. An MCAO rat model was constructed, and the mRNA expression levels in the classifier model were validated by qRT-PCR.
Results:
The separator is composed of 11 pyroptosis genes, out of which 10 genes could distinguish between ischemic stroke and control samples. CHMP2A, CHMP4A, and NAIP genes are significantly related to immune infiltrating cells, immune response gene sets, and HLA. However, two different pyroptosis subtypes mediated by 10 pyroptosis genes were identified, which were different in immune cell abundance, HLA genes, and immune response gene sets. Furthermore, 199 genes associated with pyroptosis phenotype was identified along with the analysis of biological functions.
Conclusion:
These findings reveal the potential mechanism of pyroptosis in the immune microenvironment of IS, indicating that pyroptosis functions as a vital component in the complexity and diversity of the immune microenvironment in patients with IS.
Related Concept Videos
Stroke: Introduction and Types
Ischemic Stroke l: Introduction
Ischemic Stroke ll: Pathophysiology
Hemorrhagic Stroke ll: Pathophysiology
Transient Ischemic Attack l: Introduction
Encephalitis ll: Pathophysiology

