Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
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Τρίτη 30 Μαΐου 2017

Genome-wide Analysis of STAT3-Mediated Transcription during Early Human Th17 Cell Differentiation

Publication date: 30 May 2017
Source:Cell Reports, Volume 19, Issue 9
Author(s): Subhash K. Tripathi, Zhi Chen, Antti Larjo, Kartiek Kanduri, Kari Nousiainen, Tarmo Äijo, Isis Ricaño-Ponce, Barbara Hrdlickova, Soile Tuomela, Essi Laajala, Verna Salo, Vinod Kumar, Cisca Wijmenga, Harri Lähdesmäki, Riitta Lahesmaa
The development of therapeutic strategies to combat immune-associated diseases requires the molecular mechanisms of human Th17 cell differentiation to be fully identified and understood. To investigate transcriptional control of Th17 cell differentiation, we used primary human CD4+ T cells in small interfering RNA (siRNA)-mediated gene silencing and chromatin immunoprecipitation followed by massive parallel sequencing (ChIP-seq) to identify both the early direct and indirect targets of STAT3. The integrated dataset presented in this study confirms that STAT3 is critical for transcriptional regulation of early human Th17 cell differentiation. Additionally, we found that a number of SNPs from loci associated with immune-mediated disorders were located at sites where STAT3 binds to induce Th17 cell specification. Importantly, introduction of such SNPs alters STAT3 binding in DNA affinity precipitation assays. Overall, our study provides important insights for modulating Th17-mediated pathogenic immune responses in humans.

Graphical abstract

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Teaser

Tripathi et al. show that STAT3 is critical for transcriptional regulation of early human Th17 cell differentiation. A number of SNPs from loci associated with immune-mediated disorders occur at STAT3-binding sites. Introduction of such SNPs alters STAT3 binding in DNA affinity precipitation assays.


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