Cited by 211Statistical Methods and InferenceGene expression and cancer classificationAdvanced Statistical Methods and Models

Regularized multivariate regression for identifying master predictors with application to integrative genomics study of breast cancer

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Peng, Jie, Zhu, Ji, Bergamaschi, Anna, Han, Wonshik, Noh, Dong-Young, Pollack, Jonathan R., Wang, Pei·2010·The Annals of Applied Statistics

Abstract

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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  1. WANG, P. (2004). Statistical methods for CGH array analysis. Ph.D. thesis, Stanford Univ.

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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
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
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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