Regularized multivariate regression for identifying master predictors with application to integrative genomics study of breast cancer
Open accessAbstract
In this paper we propose a new method remMap—REgularized Multivariate regression for identifying MAster Predictors—for fitting multivariate response regression models under the high-dimension–low-sample-size setting. remMap is motivated by investigating the regulatory relationships among different biological molecules based on multiple types of high dimensional genomic data. Particularly, we are interested in studying the influence of DNA copy number alterations on RNA transcript levels. For this purpose, we model the dependence of the RNA expression levels on DNA copy numbers through multivariate linear regressions and utilize proper regularization to deal with the high dimensionality as well as to incorporate desired network structures. Criteria for selecting the tuning parameters are also discussed. The performance of the proposed method is illustrated through extensive simulation studies. Finally, remMap is applied to a breast cancer study, in which genome wide RNA transcript levels and DNA copy numbers were measured for 172 tumor samples. We identify a trans-hub region in cytoband 17q12-q21, whose amplification influences the RNA expression levels of more than 30 unlinked genes. These findings may lead to a better understanding of breast cancer pathology.
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The same conclusion about 20q was reached with regularized multivariate regression (remMap).
“The same conclusion was reached with a regularized multivariate regression analysis method, remMap18”
From Proteogenomic characterization of human colon and rectal cancer (2014) · cites this paper as [18]
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- Authors
- Peng, J., Zhu, J., Bergamaschi, A., Han, W., Noh, D.-Y., Pollack, J. R., & Wang, P.
- Affiliations
- Seoul National University (KR)
- Venue
- The Annals of Applied Statistics
- Publisher
- Institute of Mathematical Statistics
- Published
- 2010-03-01
- Volume
- 4
- Issue
- 1
- Pages
- 53-77
- ISSN
- 1932-6157 (ISSN-L)
- 1941-7330
- OpenAlex
- W2949427672
- Cited by
- 211
- References
- 56
- Citations by year
- 2026: 2 · 2025: 8 · 2024: 9 · 2023: 7 · 2022: 8 · 2021: 19 · 2020: 18 · 2019: 16 · 2018: 16 · 2017: 10 · 2016: 18 · 2015: 14 · 2014: 13 · 2013: 17 · 2012: 16
- FWCI
- 14.46
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- The Annals of Applied Statistics (publishedVersion)
- Project Euclid (Cornell University) (submittedVersion)
- Seoul National University Open Repository (Seoul National University) (submittedVersion)
- Funders
- National Science Foundation (0806128, 0705532, 0748389)
- National Institute of General Medical Sciences
- Topics
- Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods and Inference
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene expression and cancer classification
- Physical Sciences › Mathematics › Statistics and Probability › Advanced Statistical Methods and Models
- Keywords
- multivariate regression, high-dimensional data, regularization, DNA copy number alterations, gene expression, breast cancer, regulatory networks, integrative genomics, hyperparameter optimization
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