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.

Modern Rheumatology
|July 22, 2008
PubMed

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.

Related Concept Videos

Drugs for Treatment of Crohn's Disease in IBD Using Biologic Agents: Anti-TNF01:24

Drugs for Treatment of Crohn's Disease in IBD Using Biologic Agents: Anti-TNF

Tumor Necrosis Factor (TNF), a proinflammatory cytokine, contributes significantly to the inflammation seen in Crohn's disease. It exists as soluble TNF and membrane-bound TNF, with actions mediated through TNF receptors (TNFR). TNFR activation leads to the release of proinflammatory cytokines, T-cell activation, collagen production, and leukocyte migration, all contributing to inflammation in Crohn's disease. Anti-TNF monoclonal antibodies, namely infliximab (Remicade), adalimumab (Humira),...
Drugs for Treatment of Crohn's Disease in IBD Using Immunomodulatory Agents01:29

Drugs for Treatment of Crohn's Disease in IBD Using Immunomodulatory Agents

Crohn's disease is an inflammatory bowel disorder marked by chronic inflammation of the GI tract. Various treatment strategies for Crohn's disease are employed, such as immunomodulatory agents, glucocorticoids, and biologics or anti-TNF therapy. Azathioprine (Imuran), a commonly used immunomodulatory drug for Crohn's disease, is converted in the body to mercaptopurine, which inhibits purine biosynthesis and cell proliferation. Both are utilized in severe cases of Inflammatory Bowel Disease...
The Extrinsic Apoptotic Pathway01:17

The Extrinsic Apoptotic Pathway

The extrinsic apoptotic pathway is initiated when extracellular death-inducing signals, such as specific cytokines, activate the death receptors expressed on the cell surface. The immune cells involved in this pathway are natural killer cells (NK cells) and cytotoxic T-lymphocytes. NK cells are critical in innate immune response, while cytotoxic T-lymphocytes are associated with adaptive immune response. These cells recognize specific receptors expressed on the altered cells and activate...
Inflammatory Response01:28

Inflammatory Response

An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Phagocytosis of Apoptotic Cells01:17

Phagocytosis of Apoptotic Cells

Cells undergoing apoptosis form apoptotic bodies that must be removed immediately to prevent inflammation, autoimmune diseases, and necrosis. Phagocytosis is carried out by professional phagocytes such as macrophages or  immature dendritic cells. Non-professional phagocytes such as  epithelial cells and fibroblasts also take part in this process; however, they are not as effective as professional phagocytes. 
Normal cells contain receptors that prevent them from being recognized by phagocytes.