Enter the matrix: factorization uncovers knowledge from omics

GL Stein-O'Brien, R Arora, AC Culhane, AV Favorov… - Trends in Genetics, 2018 - cell.com
Omics data contain signals from the molecular, physical, and kinetic inter-and intracellular
interactions that control biological systems. Matrix factorization (MF) techniques can reveal …

Perturbation-response genes reveal signaling footprints in cancer gene expression

M Schubert, B Klinger, M Klünemann, A Sieber… - Nature …, 2018 - nature.com
Aberrant cell signaling can cause cancer and other diseases and is a focal point of drug
research. A common approach is to infer signaling activity of pathways from gene …

Aging-like spontaneous epigenetic silencing facilitates Wnt activation, stemness, and BrafV600E-induced tumorigenesis

Y Tao, B Kang, DA Petkovich, YR Bhandari, J In… - Cancer cell, 2019 - cell.com
We addressed the precursor role of aging-like spontaneous promoter DNA hypermethylation
in initiating tumorigenesis. Using mouse colon-derived organoids, we show that promoter …

Consistency and overfitting of multi-omics methods on experimental data

SD McCabe, DY Lin, MI Love - Briefings in bioinformatics, 2020 - academic.oup.com
Abstract Knowledge on the relationship between different biological modalities (RNA,
chromatin, etc.) can help further our understanding of the processes through which …

Functional genomics uncover the biology behind the responsiveness of head and neck squamous cell cancer patients to cetuximab

P Bossi, C Bergamini, M Siano, M Cossu Rocca… - Clinical Cancer …, 2016 - AACR
Purpose: To identify the tumor portrait of the minority of head and neck squamous cell
carcinoma (HNSCC) patients with recurrent–metastatic (RM) disease who upon treatment …

PatternMarkers & GWCoGAPS for novel data-driven biomarkers via whole transcriptome NMF

GL Stein-O'Brien, JL Carey, WS Lee… - …, 2017 - academic.oup.com
Abstract Summary Non-negative Matrix Factorization (NMF) algorithms associate gene
expression with biological processes (eg time-course dynamics or disease subtypes) …

Cleaved NOTCH1 expression pattern in head and neck squamous cell carcinoma is associated with NOTCH1 mutation, HPV status, and high-risk features

EM Rettig, CH Chung, JA Bishop, JD Howard… - Cancer prevention …, 2015 - AACR
The Notch pathway is frequently altered in head and neck squamous cell carcinomas
(HNSCC); however, the clinical significance of NOTCH1 dysregulation is poorly understood …

Integrated time course omics analysis distinguishes immediate therapeutic response from acquired resistance

G Stein-O'Brien, LT Kagohara, S Li, M Thakar… - Genome medicine, 2018 - Springer
Background Targeted therapies specifically act by blocking the activity of proteins that are
encoded by genes critical for tumorigenesis. However, most cancers acquire resistance and …

Variation of human neural stem cells generating organizer states in vitro before committing to cortical excitatory or inhibitory neuronal fates

N Micali, SK Kim, M Diaz-Bustamante, G Stein-O'Brien… - Cell reports, 2020 - cell.com
Better understanding of the progression of neural stem cells (NSCs) in the developing
cerebral cortex is important for modeling neurogenesis and defining the pathogenesis of …

Learning dysregulated pathways in cancers from differential variability analysis

B Afsari, D German, EJ Fertig - Cancer informatics, 2014 - journals.sagepub.com
Analysis of gene sets can implicate activity in signaling pathways that is responsible for
cancer initiation and progression, but is not discernible from the analysis of individual genes …