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Related Experiment Video

Updated: Jun 24, 2026

Induction and Micro-CT Imaging of Cerebral Cavernous Malformations in Mouse Model
05:12

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Published on: September 4, 2017

Immune response in human cerebral cavernous malformations.

Changbin Shi1, Robert Shenkar, Hongyan Du

  • 1Division of Neurosurgery, NorthShore University HealthSystem, Evanston, IL 60201, USA.

Stroke
|March 17, 2009
PubMed
Summary
This summary is machine-generated.

Cerebral cavernous malformations (CCM) show an antigen-directed, oligoclonal immunoglobulin G (IgG) immune response within lesions, irrespective of clinical activity. This immune response may contribute to CCM pathogenesis.

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Area of Science:

  • Neuroimmunology
  • Vascular Malformations
  • Immunogenetics

Background:

  • Preliminary findings suggested B and plasma cells and IgG oligoclonality in cerebral cavernous malformations (CCM).
  • Immune cell infiltration and immunoglobulin (Ig) characteristics in CCM require systematic investigation.

Purpose of the Study:

  • To correlate immune cell infiltration in excised CCM lesions with clinical activity.
  • To investigate antigen-triggered immune responses, including IgG clonality, in CCM.

Main Methods:

  • Examined immune cell infiltration (plasma, B, T cells, HLA-DR, macrophages) in 23 excised CCM lesions.
  • Assessed Ig isotypes and IgG mRNA clonality using spectratyping, cloning, and sequencing.

Main Results:

  • Immune cell infiltration varied widely and did not correlate with bleeding or growth.
  • B lymphocytes were associated with venous anomaly; T cells with solitary lesions and younger subjects.
  • Oligoclonal IgG mRNA was detected in CCM lesions but not peripheral blood, indicating an antigen-specific response.

Conclusions:

  • An antigen-directed, oligoclonal IgG immune response exists in CCM lesions, independent of clinical activity.
  • Further studies are needed to confirm immune response differences in younger patients and growing lesions.
  • The role of this oligoclonal immune response in CCM pathogenicity requires investigation in animal models.