The environmental obesogen bisphenol A increases macrophage self-renewal

Grace Ampem, Alexandra Junginger, Haidong Yu, Lajos Balogh, Julianna Thuróczy, Marion E. Schneider, Tamás Röszer

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Self-renewal of macrophages is important for the healthy development and replenishment of tissue-resident macrophage pools. How this mechanism is controlled by endocrine signals is still largely unexplored. Here, we show that the endocrine disruptor bisphenol A (BPA) increases macrophage self-renewal. This effect was associated with phosphorylation of extracellular signal-regulated kinase (ERK) and a slight increase in the expression of liver X receptor alpha (LXRα). We found that LXRα inhibition induced, while LXRα activation impeded, macrophage self-renewal. LXRα signaling hence may protect from excessive macrophage expansion. Self-renewing macrophages, however, had negligible LXRα expression when compared with quiescent macrophages. Accordingly, tissue-resident macrophage pools, which are dominated by quiescent macrophages, were rich in LXRα-expressing macrophages. Overall, we show that BPA increases macrophage self-renewal and that this effect, at least in part, can be inhibited by increasing LXRα expression. Since BPA is accumulated in the adipose tissue, it has the potential to increase self-renewal of adipose tissue macrophages, leading to a condition that might negatively impact adipose tissue health.

Original languageEnglish
Pages (from-to)81-96
Number of pages16
JournalCell And Tissue Research
Volume378
Issue number1
DOIs
Publication statusPublished - Oct 1 2019

Keywords

  • ERK
  • Endocrine disruptors
  • LXR
  • Obesity
  • Obesogens

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Histology
  • Cell Biology

Fingerprint Dive into the research topics of 'The environmental obesogen bisphenol A increases macrophage self-renewal'. Together they form a unique fingerprint.

  • Cite this

    Ampem, G., Junginger, A., Yu, H., Balogh, L., Thuróczy, J., Schneider, M. E., & Röszer, T. (2019). The environmental obesogen bisphenol A increases macrophage self-renewal. Cell And Tissue Research, 378(1), 81-96. https://doi.org/10.1007/s00441-019-03019-5