Related Experiment Video

Updated: Jul 8, 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

Cells of the synovium in rheumatoid arthritis. Macrophages

Raimund W Kinne1, Bruno Stuhlmüller, Gerd-R Burmester

  • 1Experimental Rheumatology Unit, Department of Orthopedics, University Clinic, Jena, Klosterlausnitzer Str, 81, D-07607 Eisenberg, Germany. raimund.w.kinne@med.uni-jena.de

Arthritis Research & Therapy
|January 8, 2008
PubMed

Insights

Macrophages amplify rheumatoid arthritis by releasing mediators. Targeting these activated cells offers a strategy to reduce tissue damage while sparing other cells, aiding disease management.

Area of Science:

  • Immunology
  • Rheumatology
  • Cell Biology

Background:

  • Rheumatoid arthritis (RA) involves macrophage-derived mediators that amplify disease locally and systemically.
  • Activated macrophages are key drivers of irreversible joint damage in RA.

Purpose of the Study:

  • To explore strategies for selectively targeting activated macrophages in rheumatoid arthritis.
  • To leverage understanding of macrophage activation pathways for therapeutic benefit.

Main Methods:

  • Analysis of macrophage-derived mediators in rheumatoid arthritis.
  • Development of targeted agents based on macrophage activation features.

Main Results:

  • Macrophages act as central amplifiers of rheumatoid arthritis pathogenesis.
  • Targeting activated macrophages can mitigate irreversible tissue destruction.
  • Selective targeting spares other cell populations, reducing off-target effects.

Conclusions:

  • Macrophages are critical targets for managing rheumatoid arthritis.
  • Selective macrophage-targeting strategies offer a promising therapeutic approach for RA.
  • This approach minimizes damage to non-involved cells, improving treatment safety.

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...
Chronic Inflammation: Introduction01:12

Chronic Inflammation: Introduction

Chronic inflammation is a prolonged, dysregulated immune response that persists for weeks to years when the inciting stimulus is difficult to eradicate or when self‑antigens drive ongoing reactivity. Morphologically, it is defined by mononuclear cell infiltration, progressive tissue destruction, and concurrent attempts at healing via angiogenesis and fibrosis. Compared with acute inflammation, edema is less prominent while cellular infiltration predominates; triggers include persistent...
Inflammation01:38

Inflammation

Overview
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...
Immune Surveillance by NK Cells and Phagocytes01:25

Immune Surveillance by NK Cells and Phagocytes

Immune surveillance is an integral part of the innate immune system, involving the continuous monitoring of peripheral tissues to detect and respond to pathogens, infected cells, or cancerous cells. This surveillance is conducted primarily by natural killer (NK) cells and phagocytes, which employ distinct but complementary mechanisms to identify and eliminate threats.
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
Cells of the Innate Immune Response01:28

Cells of the Innate Immune Response

The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...