An atlas of mouse CD4(+) T cell transcriptomes.
Michael Jt Stubbington1, Bidesh Mahata2,3, Valentine Svensson4
1European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Trust Genome Campus, Hinxton, Cambridge, CB10 1SD, UK. mstubb@ebi.ac.uk.
Biology Direct
|April 19, 2015
Summary
This study maps the gene expression of CD4(+) T cell subtypes, revealing key transcriptional regulators and alternative splicing events. The findings offer insights into T helper and regulatory T cell differentiation and function.
Area of Science:
- Immunology
- Transcriptomics
- Cell Biology
Background:
- CD4(+) T cells, including T helper (Th) and regulatory T (Treg) cells, are crucial for adaptive immunity.
- Th cells differentiate into distinct effector subtypes with specialized functions during immune responses.
- The transcriptional mechanisms governing CD4(+) T cell identity remain incompletely understood.
Purpose of the Study:
- To investigate the transcriptional landscape of distinct CD4(+) T cell populations.
- To identify genes and regulatory processes that define T helper and regulatory T cell subtypes.
- To explore the role of post-transcriptional regulation, specifically alternative splicing, in CD4(+) T cell differentiation.
Main Methods:
- Performed mRNA sequencing on murine Th1, Th2, Th17, splenic Treg, and induced Treg (iTreg) cells.
- Integrated analysis of gene expression data to identify subtype-specific gene expression patterns.
- Analyzed alternative splicing events to assess their contribution to cell differentiation.
Main Results:
- Identified numerous differentially expressed genes ('subtype upregulated') across T helper and Treg cell subtypes, including known and novel candidates.
- Revealed significant roles for alternative splicing in regulating gene expression, impacting hundreds of genes.
- Characterized the unique transcriptional profiles associated with each CD4(+) T cell subtype.
Conclusions:
- Developed a comprehensive CD4(+) T cell transcriptome atlas, serving as a valuable resource for immunological research.
- The data highlights the importance of both transcriptional and post-transcriptional regulation in defining CD4(+) T cell identity.
- An accessible online resource (www.th-express.org) has been created to facilitate data sharing and further investigation.
