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Prostaglandin production in arthritis
Annals of the Rheumatic Diseases
|August 1, 1978
Summary
In rheumatoid arthritis, synovial fragments produced significant prostaglandin E (PGE) while polymorphonuclear leukocytes did not. Macrophages are likely the primary source of local prostaglandin production in inflammatory joint conditions.
Area of Science:
- Rheumatology
- Immunology
- Biochemistry
Background:
- Rheumatoid arthritis involves synovial inflammation.
- Prostaglandins play a role in joint inflammation.
Purpose of the Study:
- To investigate prostaglandin E (PGE) production by different inflammatory cell populations in rheumatoid arthritis.
- To identify the primary cell source of local PGE synthesis in inflammatory arthritis.
Main Methods:
- In vitro culture of inflammatory cells from synovial effusions and synovial villi.
- Radioimmunoassay measurement of prostaglandin productive capacity.
Main Results:
- Synovial fragments demonstrated substantial PGE production.
- Polymorphonuclear leukocyte-rich populations from synovial effusions were poor PGE producers.
Conclusions:
- Macrophages are suggested as the major source of local prostaglandin formation in rheumatoid arthritis and gout.
- Understanding cellular prostaglandin sources can inform therapeutic strategies for inflammatory arthritis.