Increased poly(ADP-ribose) polymerase (PARP)-1 expression and activity are associated with inflammation but not goblet cell metaplasia in murine models of allergen-induced airway inflammation

Thomas G. Havranek, Pawandeep K. Aujla, Tracey J. Nickola, Mary C. Rose, Louis M. Scavo

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Inflammation plays a key role in lung injury and in the pathogenesis of asthma. Two murine models of allergic airway inflammationsensitization and challenge to ovalbumin (OVA) and intratracheal exposure to interleukin-13 (IL13)were used to evaluate the expression of poly(ADP-ribose) polymerase-1 (PARP-1) in allergic airway inflammation. Inflammation is prominent in OVA-induced allergic asthma, but this inflammation is greatly reduced by a PARP-1 inhibitor and almost eliminated when PARP-1 knockout mice are subjected to the OVA model. The present study temporally evaluated PARP-1 protein expression, localization, and activity, as well as inflammation and goblet cell metaplasia (GCM), in murine lungs following a single OVA challenge or IL13 exposure. Following OVA challenge PARP-1 protein expression and activity were greatly increased, being maximal at 3 to 5 days following OVA exposure and beginning to decrease by day 8. These changes correlated with the timing and degree of inflammation and GCM. In contrast, PARP-1 protein or activity did not change following single IL13 exposure, though GCM was manifested without inflammation. This study demonstrates that both PARP-1 protein and activity are increased by allergen-activated inflammatory mediators, excluding IL13, and that PARP-1 increase does not appear necessary for GCM, one of the characteristic markers of allergic airway inflammation in murine models.

Original languageEnglish (US)
Pages (from-to)381-389
Number of pages9
JournalExperimental Lung Research
Volume36
Issue number7
DOIs
StatePublished - Aug 2010
Externally publishedYes

Fingerprint

Goblet Cells
Poly(ADP-ribose) Polymerases
Metaplasia
Allergens
Ovalbumin
Inflammation
Interleukin-13
Proteins
Asthma
Poly (ADP-Ribose) Polymerase-1
Lung Injury
Knockout Mice
Lung

Keywords

  • Asthma
  • Goblet cell metaplasia
  • Inflammation
  • Interleukin-13
  • Ovalbumin
  • Poly(ADP-ribose) polymerase

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine
  • Molecular Biology
  • Clinical Biochemistry

Cite this

Increased poly(ADP-ribose) polymerase (PARP)-1 expression and activity are associated with inflammation but not goblet cell metaplasia in murine models of allergen-induced airway inflammation. / Havranek, Thomas G.; Aujla, Pawandeep K.; Nickola, Tracey J.; Rose, Mary C.; Scavo, Louis M.

In: Experimental Lung Research, Vol. 36, No. 7, 08.2010, p. 381-389.

Research output: Contribution to journalArticle

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