Identification of helper T cell master regulator candidates using the polar score method

H J van den Ham, L de Waal, A C Andeweg, R J de Boer

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The T helper paradigm is currently being revised from the Th1-Th2 dichotomy to a multi-state paradigm involving a number of different cell phenotypes. Transcriptional profiling using microarrays has been used to study the development of these phenotypes. There is however no clear consensus on how to approach the analysis of this data, especially in the context of cells that are triggered to expand rapidly, and massively change their gene expression pattern. We develop a method we call 'polar score' to identify genes that are related to T helper cell polarization. This method is designed to identify polarizing genes in a set where many genes change expression. To illustrate the use of this technique, we apply it to published T cell microarray data and compare it to conventional analysis methods. With the new method, we find evidence for the existence of IL9 producing T cells ('Th9 cells') that are induced by a combination of TGFβ and IL4. We identify several candidate master regulator genes for this phenotype. Furthermore, treatment with TGFβ and IL12 results in a Treg and Th17 hybrid cell phenotype.

Original languageEnglish
Pages (from-to)98-109
Number of pages12
JournalJournal of Immunological Methods
Volume361
Issue number1-2
DOIs
Publication statusPublished - 30 Sept 2010

Keywords

  • Cell Polarity
  • Computational Biology
  • Gene Expression Regulation
  • Humans
  • Interleukin-12
  • Interleukin-4
  • Interleukin-9
  • Oligonucleotide Array Sequence Analysis
  • T-Lymphocytes, Helper-Inducer
  • Transforming Growth Factor beta

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