Related Experiment Video
Updated: May 24, 2026
Single-cell Analysis of Immunophenotype and Cytokine Production in Peripheral Whole Blood via Mass Cytometry
Published on: June 26, 2018
Environmental toxin 4-nonylphenol and autoimmune diseases: using DNA microarray to examine genetic markers of
1Neuroscience Research Institute, State University of New York, College at Old Westbury, Old Westbury, USA.
Introduction:
Adverse progression of autoimmune diseases is linked to the dysregulation of cytokines. In this regard we investigated the role of 4-nonylphenol (4-NP), as a potential contributing factor in the development of immune diseases and compared it to estrogens actions since 4-NP may work via estrogen processes.
Material And Methods:
The study made cytokine level expression changes in U937 cells by microarray technology coupled to RT PCR as a validating technique.
Results:
It was determined that 4-NP significantly up-regulated proinflammatory cytokine expression (toll-like-receptor [TLR]-6, TLR-10, interleukin [IL]-1, IL-5, IL-6, IL-17C, IL-23A, IL-8RB, IL-receptor-associated-kinase [IRAK-2], tumor-necrosis-factor-receptor [TNFR]-5, and TNFR-10). Estrogen caused insignificant increases but the changes parralelled that of 4-NP. Simultaneously, 4-NP down-regulated the expression of anti-inflammatory cytokines (IL-4 and IL-10), while estrogen up-regulated them.
Conclusions:
4-Nonylphenol may initiate its toxic effects and pose a risk to autoimmunity-prone individuals by eliciting effects up to 4 times more potent than estrogen. Overall, exposure to 4-NP may contribute to autoimmune susceptibility and/or exacerbate existing autoimmune conditions by dys-regulating normal expression of cytokines.
Insights
4-Nonylphenol (4-NP) exposure significantly alters cytokine expression, increasing pro-inflammatory and decreasing anti-inflammatory cytokines. This immune dysregulation poses a risk for autoimmune diseases, potentially acting more potently than estrogen.
Area of Science:
- Immunology
- Environmental Health
- Toxicology
Background:
- Autoimmune disease progression is linked to cytokine dysregulation.
- 4-Nonylphenol (4-NP) is investigated as a potential factor in immune disease development.
- 4-NP's potential estrogenic mechanisms are explored.
Purpose of the Study:
- To investigate the role of 4-nonylphenol (4-NP) in immune disease development.
- To compare the effects of 4-NP on cytokine expression with those of estrogen.
Main Methods:
- Cytokine expression levels in U937 cells were analyzed using microarray technology.
- Reverse transcription polymerase chain reaction (RT-PCR) was employed for validating gene expression changes.
Main Results:
- 4-NP significantly upregulated pro-inflammatory cytokines (e.g., TLR-6, IL-1, IL-6, IL-17C, TNF-R5).
- Estrogen showed parallel but less significant increases in these cytokines.
- 4-NP downregulated anti-inflammatory cytokines (IL-4, IL-10), while estrogen upregulated them.
Conclusions:
- 4-Nonylphenol exhibits potent immune-disrupting effects, up to four times stronger than estrogen.
- 4-NP exposure may increase susceptibility to or exacerbate existing autoimmune conditions by altering cytokine balance.
Related Concept Videos
01:29Autoimmune Disorders
Concept and Mechanism of Autoimmune Diseases
The immune system...
01:25Inflammatory Bowel Disease III: Crohn's Disease