2013
DOI: 10.1373/clinchem.2012.193409
|View full text |Cite
|
Sign up to set email alerts
|

Multiplex Picoliter-Droplet Digital PCR for Quantitative Assessment of DNA Integrity in Clinical Samples

Abstract: BACKGROUND: Assessment of DNA integrity and quantity remains a bottleneck for high-throughput molecular genotyping technologies, including nextgeneration sequencing. In particular, DNA extracted from paraffin-embedded tissues, a major potential source of tumor DNA, varies widely in quality, leading to unpredictable sequencing data. We describe a picoliter droplet-based digital PCR method that enables simultaneous detection of DNA integrity and the quantity of amplifiable DNA.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

3
78
0
2

Year Published

2015
2015
2023
2023

Publication Types

Select...
5
3

Relationship

1
7

Authors

Journals

citations
Cited by 94 publications
(83 citation statements)
references
References 30 publications
(20 reference statements)
3
78
0
2
Order By: Relevance
“…Sequence artifacts in FFPE DNA are observed more frequently as the number of input DNA templates decreases (53 ). The fewer amplifiable templates that are used in molecular analysis, the more chance that DNA templates with lesions leading to subsequent sequencing errors will be de- (30 ). The PCR success rate of FFPE DNA is strongly correlated with the size of the amplicon (49,54 ), confirming the benefit of designing shorter amplicons.…”
Section: Using Short Ampliconsmentioning
confidence: 84%
See 1 more Smart Citation
“…Sequence artifacts in FFPE DNA are observed more frequently as the number of input DNA templates decreases (53 ). The fewer amplifiable templates that are used in molecular analysis, the more chance that DNA templates with lesions leading to subsequent sequencing errors will be de- (30 ). The PCR success rate of FFPE DNA is strongly correlated with the size of the amplicon (49,54 ), confirming the benefit of designing shorter amplicons.…”
Section: Using Short Ampliconsmentioning
confidence: 84%
“…Compared to DNA from fresh formalin-fixed tissues, the PCR success rate of DNA from older formalin-fixed tissues was shown to be decreased (29 ), indicating that DNA fragmentation may continuously occur during storage. Fragmentation damage in FFPE DNA directly influences the amount of templates available for PCR amplification (30 ). Thus, the same quantity of FFPE DNA from different samples may contain significantly different amounts of amplifiable templates, depending on the degree of fragmentation damage (6 ).…”
Section: Dna Fragmentationmentioning
confidence: 99%
“…The theoretical fraction of positive droplets was estimated as previously described (27,28), and a Poisson distribution of genomic DNA was expected in the droplets.…”
Section: Determination Of the Amount Of Amplifiable Dnamentioning
confidence: 99%
“…In ddPCR, individual DNA fragments are compartmentalized into more than a million droplets, which are then amplified in parallel. By using this system, the detection of one KRAS mutant among 200,000 KRAS wild-types has been demonstrated for genomic DNA from tumor cell lines (25), and this technologic advantage in highly sensitive mutation detection has been adopted in clinical research as well (26)(27)(28)(29)(30).…”
Section: Introductionmentioning
confidence: 99%
“…Elle permet à la fois de réali-ser plus efficacement les tests réalisés aujourd'hui par des méthodes telles que la qPCR, mais également de réaliser des expériences au-delà des capacités des procédures conventionnelles. Il est cependant à noter que de nouvelles procédures, plus sensibles que les procédures conventionnelles, basées sur la PCR quantitative spécifique d'allèles, ont été récemment développées pour l'analyse d'ADN libre tumoral circulant [23,24] et validées dans le cadre d'études cliniques [19]. Ainsi, la dPCR est particulièremente pertinente pour la détection et la quantification de marqueurs minoritaires, incluant les sousclones rares au sein de la tumeur ou de l'ADN libre circulant.…”
Section: Caractérisation Des Altérations Génétiquesunclassified