Quantification of PARP activity in human tissues: Ex vivo assays in blood cells and immunohistochemistry in human biopsies

Eszter M. Horvath, Zsuzsanna K. Zsengellér, Csaba Szabo

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Scopus citations


Poly(ADP-ribosyl)ation of proteins is a posttranslational modification mediated by poly(ADP-ribose) polymerases (PARPs) that use NAD+ as substrate to form the negatively charged polymer of poly(ADP-ribose) (PAR). After DNA damage, PARP-1 is responsible for approximately 90% of the total cellular PARylation activity. Numerous studies showed activation of PARP-1 in various conditions associated with oxidative and nitrosative stress, such as ischemia-reperfusion injury, diabetes mellitus, and inflammation, and also proved the beneficial effects of PARP inhibitors. Several pharmacological inhibitors of PARP moved toward clinical testing for a variety of indications, including cardioprotection and malignant tumors, and in late 2014, olaparib became the first PARP inhibitor approved for human use for the therapy of ovarian cancer. These advances necessitate the detection of PARP activation in human tissues. In the present chapter, we review specific methods used to detect PARP activation in human circulating leukocytes and in human tissue sections.

Original languageEnglish (US)
Title of host publicationMethods in Molecular Biology
PublisherHumana Press Inc.
Number of pages8
StatePublished - 2017
Externally publishedYes

Publication series

NameMethods in Molecular Biology
ISSN (Print)1064-3745


  • Biopsy
  • Circulating leukocytes
  • DAB
  • Immunohistochemistry
  • PARP
  • Poly(ADP-ribose)

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics


Dive into the research topics of 'Quantification of PARP activity in human tissues: Ex vivo assays in blood cells and immunohistochemistry in human biopsies'. Together they form a unique fingerprint.

Cite this