Effects of paraquat and capsaicin on the expression of genes related to inflammatory, immune responses and cell death in immortalized human HaCat keratinocytes

N. Paolillo, S. Piccirilli, E. Giardina, V. Rispoli, C. Colica, Steven Nisticò

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The present experiments were aimed to characterize in immortalized human HaCat keratinocytes the gene expression induced by paraquat and capsaicin, two agents known to induce cell death or to affect inflammatory and pain pathways, respectively. In particular, the following set of genes were analysed by qRealtime PCR: CXCL10,CXCL11, IL-10 (inflammatory and immune responses), TP73, BCL2, (apoptotic and anti-apoptotic genes), MMP9 (proteolysis), SOD-1, BAK-1 and CAT (peroxysomal and microsomal oxidation pathways). In this way, we were able to differentiate the two toxins since they had a different profile of gene expression. In fact, paraquata was found to activate set of genes involved in inflammatory (CXL10,CXL11 and IL-10), and cell death (BCL2, BAK-1, MMP9) pathways. Another specific site of action of paraquat was represented by an activation of the gene involved in SOD-1 transcription. On the contrary, capsaicin was found to produce only an up-regulation of BCL2, an anti-apoptotic gene and MMP9, whereas no significant changes were reported in genes involved in inflammatory and immune responses. Finally, in comparison to previous experiments carried out with TNF-α and IL-1β, we have shown that paraquat produced a similar pattern of activation of set of genes involved both in inflammation and apoptosis.

Original languageEnglish
Pages (from-to)861-868
Number of pages8
JournalInternational Journal of Immunopathology and Pharmacology
Volume24
Issue number4
Publication statusPublished - Oct 2011

Fingerprint

Paraquat
Capsaicin
Keratinocytes
Cell Death
Gene Expression
Genes
Interleukin-10
Transcriptional Activation
Interleukin-1
Transcriptome
Proteolysis
Up-Regulation
Apoptosis
Inflammation
Pain
Polymerase Chain Reaction

Keywords

  • Apoptosis
  • Capsaicin
  • Gene expression
  • Inflammation
  • Keratinocytes
  • Paraquat
  • Transcriptional response

ASJC Scopus subject areas

  • Pharmacology
  • Immunology
  • Immunology and Allergy

Cite this

Effects of paraquat and capsaicin on the expression of genes related to inflammatory, immune responses and cell death in immortalized human HaCat keratinocytes. / Paolillo, N.; Piccirilli, S.; Giardina, E.; Rispoli, V.; Colica, C.; Nisticò, Steven.

In: International Journal of Immunopathology and Pharmacology, Vol. 24, No. 4, 10.2011, p. 861-868.

Research output: Contribution to journalArticle

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