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Pro-apoptotic effect of nonsteroidal anti-inflammatory drugs on synovial fibroblasts
Natsuko Kusunoki1, Ryuta Yamazaki, Shinichi Kawai
1Division of Rheumatology, Department of Internal Medicine, Toho University School of Medicine, 6-11-1 Omori-Nishi, Ota-ku, Tokyo, 143-8541, Japan.
Abstract:
Rheumatoid arthritis (RA) is a systemic inflammatory disease that mainly affects the articular synovial tissues. Although the etiology of RA has not yet been elucidated, physical and biochemical inhibition of synovial hyperplasia, which is the origin of articular destruction, may be an effective treatment for RA. Nonsteroidal anti-inflammatory drugs (NSAIDs) have long been used for the treatment of RA. The mechanism of action of NSAIDs generally involves the inhibition of cyclooxygenase (COX) at sites of inflammation. Thus, NSAIDs were not generally considered to have a so-called anti-rheumatic effect, including inhibition of progressive joint destruction and induction of remission. However, certain conventional NSAIDs and celecoxib, a selective COX-2 inhibitor, have been reported to inhibit synovial hyperplasia by inducing the apoptosis of human synovial fibroblasts. Therefore, it has been suggested that such NSAIDs may not only have an anti-inflammatory effect but also an anti-rheumatic effect. In this review, we summarize findings about the pro-apoptotic effect, in other words, anti-proliferative effect of NSAIDs on synovial fibroblasts from patients with RA.
Insights
Certain nonsteroidal anti-inflammatory drugs (NSAIDs) may offer an anti-rheumatic effect by inhibiting synovial hyperplasia. These NSAIDs induce apoptosis in synovial fibroblasts, potentially slowing joint destruction in rheumatoid arthritis (RA).
Area of Science:
- Rheumatology
- Pharmacology
Background:
- Rheumatoid arthritis (RA) is a systemic inflammatory disease impacting articular synovial tissues.
- Synovial hyperplasia is a key factor in RA-related joint destruction.
- Current treatments for RA primarily focus on inflammation management.
Purpose of the Study:
- To review the pro-apoptotic effects of NSAIDs on synovial fibroblasts in RA patients.
- To explore the potential anti-rheumatic properties of NSAIDs beyond anti-inflammatory action.
Main Methods:
- Literature review summarizing existing research on NSAIDs and synovial fibroblasts.
- Analysis of studies investigating NSAID-induced apoptosis in human synovial fibroblasts from RA patients.
Main Results:
- Certain conventional NSAIDs and celecoxib (a COX-2 inhibitor) have demonstrated the ability to inhibit synovial hyperplasia.
- These NSAIDs induce apoptosis (programmed cell death) in human synovial fibroblasts.
- This pro-apoptotic effect suggests a potential mechanism for an anti-rheumatic effect.
Conclusions:
- NSAIDs may possess an anti-rheumatic effect by inhibiting synovial hyperplasia through apoptosis induction.
- This finding challenges the traditional view of NSAIDs as solely anti-inflammatory agents in RA treatment.
- Further research into NSAIDs' anti-rheumatic potential is warranted for RA management.
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