Related Experiment Video

Updated: Jun 12, 2026

Isolation and Culture of Primary Synovial Macrophages and Fibroblasts from Murine Arthritis Tissue
09:18

Isolation and Culture of Primary Synovial Macrophages and Fibroblasts from Murine Arthritis Tissue

Published on: February 24, 2023

Cell-cell interactions in rheumatoid arthritis synovium

David A Fox1, Alison Gizinski, Rachel Morgan

  • 1Division of Rheumatology and Rheumatic Diseases Research Core Center, 3918 Taubman Center, 1500 East Medical Center Drive, The University of Michigan, Ann Arbor, MI 48109, USA. dfox@umich.edu <dfox@umich.edu>

Rheumatic Diseases Clinics of North America
|June 1, 2010
PubMed

Insights

Identifying specific cell interactions in rheumatoid arthritis synovium is key for developing targeted therapies. This research highlights pathways crucial for joint inflammation, offering potential new treatment targets.

Area of Science:

  • Immunology
  • Rheumatology
  • Cell Biology

Background:

  • Rheumatoid arthritis (RA) pathogenesis involves complex cellular and molecular interactions within synovial tissue.
  • Current targeted therapies for RA are informed by understanding these interactions.
  • Need exists for treatments with greater specificity to joint inflammation, minimizing impact on systemic immunity.

Purpose of the Study:

  • To identify and evaluate specific cell-cell interaction pathways in rheumatoid arthritis synovium.
  • To explore these pathways as potential targets for novel, safer therapeutic strategies.
  • To differentiate pathways critical for joint inflammation from those vital for systemic infection defense.

Main Methods:

  • Review and analysis of existing literature on cellular interactions in RA synovium.
  • Highlighting key cell-cell interaction pathways implicated in joint inflammation.
  • Evaluating the specificity of these pathways for synovial inflammation versus systemic immunity.

Main Results:

  • Selected cell-cell interactions within the rheumatoid arthritis synovium have been identified.
  • These interactions play a significant role in the inflammatory processes of the joint.
  • Some pathways show potential for targeted therapeutic intervention due to their specificity.

Conclusions:

  • Understanding specific cell-cell interactions in RA synovium is crucial for advancing treatment.
  • Targeting these identified pathways could lead to more effective and safer therapies for rheumatoid arthritis.
  • Further investigation into these highlighted interactions is warranted for clinical application.

Related Concept Videos

T Cell Types and Functions01:24

T Cell Types and Functions

When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
The JAK-STAT Signaling Pathway01:20

The JAK-STAT Signaling Pathway

Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as  SH2...
Cell Adhesion Molecules - Types and Functions01:20

Cell Adhesion Molecules - Types and Functions

Cell adhesion molecules (CAMs) are pivotal to multicellularity and the coordinated functioning of tissues and organ systems. They enable physical interactions between cells and provide mechanical strength to tissues. They also function as receptors for signal transmission across the plasma membrane. The CAMs are broadly classified into four families - integrins, cadherins, selectins, and immunoglobulin-like CAMs (IgCAMs).
CAM Families
The Integrin family of proteins is primarily  involved in a...
Overview of Cell-Matrix Interactions01:24

Overview of Cell-Matrix Interactions

The extracellular matrix or ECM holds cells together to form a tissue and allows the cells within the tissue to communicate. ECM comprises proteins such as fibronectin, collagen, laminin, etc. The most abundant protein in this space is collagen. Collagen fibers are interwoven with carbohydrate-containing protein molecules called proteoglycans. ECM allows cell migration and provides a structural scaffold at cell adhesion that anchors the cell when the extracellular matrix proteins interact with...
Structural Joints: Synovial Joints01:16

Structural Joints: Synovial Joints

Synovial joints are the most common type of joint in the body. A key structural characteristic for a synovial joint is the presence of a joint cavity. This fluid-filled space is where the articulating surfaces of the bones contact each other. Also, unlike fibrous or cartilaginous joints, the articulating bone surfaces at a synovial joint are not directly connected to each other with fibrous connective tissue or cartilage. This gives the bones of a synovial joint the ability to move smoothly...
Rheumatic Heart Disease I: Introduction01:23

Rheumatic Heart Disease I: Introduction

Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...