The Annals of Applied Statistics

Bayesian hierarchical modeling for signaling pathway inference from single cell interventional data

Ruiyan Luo and Hongyu Zhao

Full-text: Open access

Abstract

Recent technological advances have made it possible to simultaneously measure multiple protein activities at the single cell level. With such data collected under different stimulatory or inhibitory conditions, it is possible to infer the causal relationships among proteins from single cell interventional data. In this article we propose a Bayesian hierarchical modeling framework to infer the signaling pathway based on the posterior distributions of parameters in the model. Under this framework, we consider network sparsity and model the existence of an association between two proteins both at the overall level across all experiments and at each individual experimental level. This allows us to infer the pairs of proteins that are associated with each other and their causal relationships. We also explicitly consider both intrinsic noise and measurement error. Markov chain Monte Carlo is implemented for statistical inference. We demonstrate that this hierarchical modeling can effectively pool information from different interventional experiments through simulation studies and real data analysis.

Article information

Source
Ann. Appl. Stat., Volume 5, Number 2A (2011), 725-745.

Dates
First available in Project Euclid: 13 July 2011

Permanent link to this document
https://projecteuclid.org/euclid.aoas/1310562203

Digital Object Identifier
doi:10.1214/10-AOAS425

Mathematical Reviews number (MathSciNet)
MR2840173

Zentralblatt MATH identifier
1223.62014

Keywords
Bayesian network dependency network Gaussian graphical model hierarchical model interventional data Markov chain Monte Carlo mixture distribution single cell measurements signaling pathway

Citation

Luo, Ruiyan; Zhao, Hongyu. Bayesian hierarchical modeling for signaling pathway inference from single cell interventional data. Ann. Appl. Stat. 5 (2011), no. 2A, 725--745. doi:10.1214/10-AOAS425. https://projecteuclid.org/euclid.aoas/1310562203


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Supplemental materials

  • Supplementary material: Additional descriptions and results of hierarchical models. Materials include description and simulation results of the hierarchical model (mHM) with varying variances of intrinsic noises (σ_{ik}^I)^2, MCMC algorithm for the hierarchical model (HM), direction inference for the restricted hierarchical model (RHM), and additional figures of posterior inference and networks.