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Related Experiment Video

Updated: Jun 25, 2026

An Immunohistopathologic Study to Profile the Folate Receptor Beta Macrophage and Vascular Immune Microenvironment in Giant Cell Arteritis

Published on: February 8, 2019

[Pathogenesis of medium- and large-vessel vasculitis].

C M Weyand¹, J J Goronzy

¹The Lowance Center for Human Immunology and Rheumatology, Emory University School of Medicine, 101 Woodruff Circle, 30322 Atlanta, GA, USA. cweyand@emory.edu

Zeitschrift Fur Rheumatologie

|February 19, 2009

Summary

Giant cell arteritis (GCA) involves abnormal immune responses in blood vessels, starting with dendritic cells (DCs). Understanding these vascular DCs offers new diagnostic and therapeutic strategies for GCA.

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Last Updated: Jun 25, 2026

An Immunohistopathologic Study to Profile the Folate Receptor Beta Macrophage and Vascular Immune Microenvironment in Giant Cell Arteritis

Published on: February 8, 2019

Mouse Models for Graft Arteriosclerosis

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Published on: May 14, 2013

Area of Science:

Immunology
Vascular Biology
Pathology

Context:

Giant cell arteritis (GCA) is a systemic vasculitis affecting large and medium arteries, often leading to severe complications like blindness and stroke.
Aortic involvement in GCA can result in dissection and aneurysm formation.
The arterial wall's specialized microenvironment plays a crucial role in GCA pathogenesis.

Purpose:

To elucidate the cellular and molecular mechanisms underlying Giant Cell Arteritis (GCA).
To present a novel disease model for GCA focusing on the role of vascular dendritic cells (DCs).
To identify key cellular players and signaling pathways for developing new diagnostic and therapeutic strategies.

Summary:

Giant cell arteritis (GCA) pathogenesis involves abnormal innate and adaptive immune responses within the arterial wall.
Vascular dendritic cells (DCs) initiate the inflammatory cascade by sensing pathogens and activating T lymphocytes.
Macrophages contribute to tissue damage and vascular remodeling, leading to intimal hyperplasia and luminal occlusion.

Impact:

Highlights the active immune monitoring role of large blood vessels.
Identifies vascular DCs as critical initiators of GCA, breaking the vessel wall's immunoprivileged state.
Suggests novel diagnostic and therapeutic targets focusing on vascular DCs and immune signaling pathways in GCA.