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Alternative Polyadenylation Patterns for Novel Gene Discovery and Classification in Cancer
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10.1016-j.neo.2017.04.008.pdf
Date
2017-07-01
Author
BEGIK, Oguzhan
ÖYKEN, MERVE
ALICAN, Tuna Cinkilli
Can, Tolga
Erson Bensan, Ayşe Elif
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Certain aspects of diagnosis, prognosis, and treatment of cancer patients are still important challenges to be addressed. Therefore, we propose a pipeline to uncover patterns of alternative polyadenylation (APA), a hidden complexity in cancer transcriptomes, to further accelerate efforts to discover novel cancer genes and pathways. Here, we analyzed expression data for 1045 cancer patients and found a significant shift in usage of poly(A) signals in common tumor types (breast, colon, lung, prostate, gastric, and ovarian) compared to normal tissues. Using machine-learning techniques, we further defined specific subsets of APA events to efficiently classify cancer types. Furthermore, APA patterns were associated with altered protein levels in patients, revealed by antibody-based profiling data, suggesting functional significance. Overall, our study offers a computational approach for use of APA in novel gene discovery and classification in common tumor types, with important implications in basic research, biomarker discovery, and precision medicine approaches.
Subject Keywords
3' urts
,
RNA
,
Expression
,
Cells
,
Widespread
,
Survival
URI
https://hdl.handle.net/11511/38083
Journal
NEOPLASIA
DOI
https://doi.org/10.1016/j.neo.2017.04.008
Collections
Department of Computer Engineering, Article