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2014 ; 1105
(ä): 419-37
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Quantitative PCR-based measurement of nuclear and mitochondrial DNA damage and
repair in mammalian cells
#MMPMID24623245
Furda A
; Santos JH
; Meyer JN
; Van Houten B
Methods Mol Biol
2014[]; 1105
(ä): 419-37
PMID24623245
show ga
In this chapter, we describe a gene-specific quantitative PCR (QPCR)-based assay
for the measurement of DNA damage, using amplification of long DNA targets. This
assay has been used extensively to measure the integrity of both nuclear and
mitochondrial genomes exposed to different genotoxins and has proven to be
particularly valuable in identifying reactive oxygen species-mediated
mitochondrial DNA damage. QPCR can be used to quantify both the formation of DNA
damage as well as the kinetics of damage removal. One of the main strengths of
the assay is that it permits monitoring the integrity of mtDNA directly from
total cellular DNA without the need for isolating mitochondria or a separate step
of mitochondrial DNA purification. Here we discuss advantages and limitations of
using QPCR to assay DNA damage in mammalian cells. In addition, we give a
detailed protocol of the QPCR assay that helps facilitate its successful
deployment in any molecular biology laboratory.