Computational Surprisal Analysis Speeds-Up Genomic Characterization of Cancer Processes

Autor: Iaakov Exman, Simcha Simon, Françoise Remacle, Nataly Kravchenko-Balasha, Raphael D. Levine
Rok vydání: 2014
Předmět:
Computer and Information Sciences
Transcription
Genetic

Carcinogenesis
Systems biology
Computation
lcsh:Medicine
Network structure
Biology
Machine learning
computer.software_genre
Databases
03 medical and health sciences
0302 clinical medicine
Software Design
Genetics
Medicine and Health Sciences
Cancer Detection and Diagnosis
Humans
lcsh:Science
030304 developmental biology
0303 health sciences
Multidisciplinary
Cell immortalization
Genome
Human

Software Tools
Surprisal analysis
business.industry
lcsh:R
Biology and Life Sciences
Computational Biology
Software Engineering
Genomics
Method of analysis
Computing Methods
Gene Expression Regulation
Neoplastic

Oncology
030220 oncology & carcinogenesis
lcsh:Q
Artificial intelligence
Information Technology
business
computer
Algorithms
Research Article
Zdroj: PLoS ONE, Vol 9, Iss 11, p e108549 (2014)
PLoS ONE
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0108549
Popis: Surprisal analysis is increasingly being applied for the examination of transcription levels in cellular processes, towards revealing inner network structures and predicting response. But to achieve its full potential, surprisal analysis should be integrated into a wider range computational tool. The purposes of this paper are to combine surprisal analysis with other important computation procedures, such as easy manipulation of the analysis results – e.g. to choose desirable result sub-sets for further inspection –, retrieval and comparison with relevant datasets from public databases, and flexible graphical displays for heuristic thinking. The whole set of computation procedures integrated into a single practical tool is what we call Computational Surprisal Analysis. This combined kind of analysis should facilitate significantly quantitative understanding of different cellular processes for researchers, including applications in proteomics and metabolomics. Beyond that, our vision is that Computational Surprisal Analysis has the potential to reach the status of a routine method of analysis for practitioners. The resolving power of Computational Surprisal Analysis is here demonstrated by its application to a variety of cellular cancer process transcription datasets, ours and from the literature. The results provide a compact biological picture of the thermodynamic significance of the leading gene expression phenotypes in every stage of the disease. For each transcript we characterize both its inherent steady state weight, its correlation with the other transcripts and its variation due to the disease. We present a dedicated website to facilitate the analysis for researchers and practitioners.
Databáze: OpenAIRE