Related Experiment Video
Updated: Jul 9, 2026

04:44
Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
Published on: June 16, 2020
Increased serum interleukin 23 in patients with systemic sclerosis
Kazuhiro Komura1, Manabu Fujimoto, Minoru Hasegawa
1Department of Dermatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
The Journal of Rheumatology
|December 19, 2007
Summary
Elevated serum levels of interleukin-23 (IL-23) are linked to systemic sclerosis (SSc). This finding suggests IL-23 may play a role in SSc development and offers a potential therapeutic target.
Area of Science:
- Immunology
- Rheumatology
- Cytokine Signaling
Background:
- Systemic sclerosis (SSc) is an autoimmune disease with complex pathogenesis.
- Interleukin-23 (IL-23) is a cytokine involved in T lymphocyte differentiation.
- The role of IL-23 in SSc is currently unknown.
Purpose of the Study:
- To investigate serum IL-23 levels in patients with SSc.
- To explore the clinical associations of IL-23 in SSc.
Main Methods:
- Enzyme-linked immunosorbent assay (ELISA) was used to measure serum IL-23.
- Study included 63 SSc patients, 15 systemic lupus erythematosus (SLE) patients, and 31 healthy controls.
- SSc patients were categorized into limited and diffuse cutaneous subtypes.
Main Results:
- Serum IL-23 levels were significantly higher in SSc patients compared to SLE patients and healthy controls.
- Elevated IL-23 correlated with longer disease duration and pulmonary fibrosis presence.
- IL-23 levels did not associate with skin sclerosis extent or pulmonary fibrosis severity.
Conclusions:
- IL-23 is implicated in the induction of SSc.
- Targeting IL-23 may represent a potential therapeutic strategy for early SSc.
- Further research is warranted to explore IL-23 blockade in SSc treatment.
Related Concept Videos
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...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
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...
Inflammatory Bowel Disease III: Crohn's Disease
Crohn’s disease is a chronic, relapsing form of inflammatory bowel disease characterized by segmental, transmural inflammation that can affect any part of the gastrointestinal tract. Its pathogenesis arises from a combination of genetic susceptibility, environmental exposures, epithelial barrier dysfunction, and immune dysregulation. Together, these factors lead to an exaggerated immune response against components of the gut microbiome.Genetic and Environmental InfluencesMultiple genetic...
