Autoimmune potential of perchloroethylene

Role of lipid-derived aldehydes

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Tetrachloroethene (perchloroethylene, PCE), an ubiquitous environmental contaminant, has been implicated in inducing autoimmunity/autoimmune diseases (ADs), including systemic lupus erythematosus (SLE) and scleroderma in humans. However, experimental evidence suggesting the potential of PCE in mediating autoimmunity is lacking. This study was, therefore, undertaken to explore PCE's potential in inducing/exacerbating an autoimmune response. Six-week old female MRL +/+ mice, in groups of 6 each, were treated with PCE (0.5 mg/ml) via drinking water for 12, 18 and 24 weeks and markers of autoimmunity and oxidative stress were evaluated. PCE exposure led to significant increases in serum anti-nuclear antibodies (ANA), anti-dsDNA and anti-scleroderma-70 (anti-Scl-70) antibodies at 18 weeks and, to a greater extent at 24 weeks, suggesting that PCE exposure exacerbated autoimmunity in our animal model. The increases in autoantibodies were associated with time-dependent increases in malondialdehyde (MDA)-protein adducts and their antibodies, as well as significantly decreased levels of antioxidants GSH and SOD. The splenocytes isolated from mice treated with PCE for 18 and 24 weeks showed greater Th17 cell proliferation and increased release of IL-17 in culture supernatants following stimulation with MDA-mouse serum albumin adducts, suggesting that MDA-modified proteins may act as an immunologic trigger by activating Th17 cells and contribute to PCE-mediated autoimmunity. Our studies thus provide an experimental evidence that PCE induces/exacerbates an autoimmune response and lipid-derived aldehydes (such as MDA) contribute to this response.

Original languageEnglish (US)
Pages (from-to)76-83
Number of pages8
JournalToxicology and Applied Pharmacology
Volume333
DOIs
StatePublished - Oct 15 2017

Fingerprint

Tetrachloroethylene
Aldehydes
Autoimmunity
Lipids
Malondialdehyde
Th17 Cells
Oxidative stress
Interleukin-17
Antibodies
Cell proliferation
Serum Albumin
Drinking Water
Systemic Lupus Erythematosus
Autoantibodies
Autoimmune Diseases
Anti-Idiotypic Antibodies
Animals
Proteins
Oxidative Stress
Animal Models

Keywords

  • Autoantibody
  • Autoimmunity
  • Lipid-derived aldehydes
  • Oxidative stress
  • Perchloroethylene
  • Th17 cell

ASJC Scopus subject areas

  • Toxicology
  • Pharmacology

Cite this

Autoimmune potential of perchloroethylene : Role of lipid-derived aldehydes. / Wang, Gangduo; Wang, Jianling; Ansari, Ghulam; Khan, M.

In: Toxicology and Applied Pharmacology, Vol. 333, 15.10.2017, p. 76-83.

Research output: Contribution to journalArticle

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