Identification of helper T cell master regulator candidates using the polar score method.
J Immunol Methods
; 361(1-2): 98-109, 2010 Sep 30.
Article
de En
| MEDLINE
| ID: mdl-20688073
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 TGFß and IL4. We identify several candidate master regulator genes for this phenotype. Furthermore, treatment with TGFß and IL12 results in a Treg and Th17 hybrid cell phenotype.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Régulation de l'expression des gènes
/
Polarité de la cellule
/
Lymphocytes T auxiliaires
/
Biologie informatique
/
Séquençage par oligonucléotides en batterie
Type d'étude:
Diagnostic_studies
/
Prognostic_studies
Limites:
Humans
Langue:
En
Journal:
J Immunol Methods
Année:
2010
Type de document:
Article
Pays d'affiliation:
Pays-Bas