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2017 ; 3
(ä): 6
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On the performance of de novo pathway enrichment
#MMPMID28649433
Batra R
; Alcaraz N
; Gitzhofer K
; Pauling J
; Ditzel HJ
; Hellmuth M
; Baumbach J
; List M
NPJ Syst Biol Appl
2017[]; 3
(ä): 6
PMID28649433
show ga
De novo pathway enrichment is a powerful approach to discover previously
uncharacterized molecular mechanisms in addition to already known pathways. To
achieve this, condition-specific functional modules are extracted from large
interaction networks. Here, we give an overview of the state of the art and
present the first framework for assessing the performance of existing methods. We
identified 19 tools and selected seven representative candidates for a
comparative analysis with more than 12,000 runs, spanning different biological
networks, molecular profiles, and parameters. Our results show that none of the
methods consistently outperforms the others. To mitigate this issue for
biomedical researchers, we provide guidelines to choose the appropriate tool for
a given dataset. Moreover, our framework is the first attempt for a quantitative
evaluation of de novo methods, which will allow the bioinformatics community to
objectively compare future tools against the state of the art.