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Related Experiment Video

Updated: Jun 22, 2026

Small RNA Transfection in Primary Human Th17 Cells by Next Generation Electroporation

Small RNA Transfection in Primary Human Th17 Cells by Next Generation Electroporation

Published on: April 13, 2017

RORC2: the master of human Th17 cell programming.

Derya Unutmaz¹

¹Department of Microbiology, Department of Pathology, NYU School of Medicine, NY, USA. derya@mac.com

European Journal of Immunology

|June 6, 2009

Summary

The orphan nuclear receptor RORC2 acts as a master switch for T helper 17 (Th17) cell differentiation. Ectopic RORC2 expression in human T cells induces a Th17 phenotype, including IL-17 production and Treg resistance.

Area of Science:

Immunology
Molecular Biology
Cell Biology

Background:

T helper 17 (Th17) cells are recognized as a crucial effector lineage within T helper cells, alongside Th1 and Th2 cells.
While Interleukin-17 (IL-17) secretion is a hallmark of Th17 cells, their differentiation involves a complex program of chemokine receptor, cell surface molecule, and cytokine expression.
The orphan nuclear receptor ROR gamma t/RORC2 (mice/humans) is identified as the master transcription factor driving Th17 cell differentiation.

Discussion:

This study investigates the extent to which RORC2 expression alone can recapitulate the function and phenotype of human Th17 cells.
The findings demonstrate that ectopic RORC2 expression in primary human T cells induces not only IL-17 production but also a characteristic cytokine and chemokine receptor profile.
Furthermore, RORC2-programmed Th17 cells exhibit partial resistance to suppression by regulatory T cells (Tregs).

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Key Insights:

RORC2 functions as a master transcription factor, initiating broad phenotypic and functional programming during Th17 cell differentiation.
Ectopic RORC2 expression in human T cells is sufficient to induce a bona fide Th17 cell signature, including IL-17 production and specific receptor expression.
RORC2-driven Th17 cell programming confers partial resistance to Treg-mediated suppression, highlighting a key functional attribute of this lineage.

Outlook:

These findings solidify the role of RORC2 as a master switch for Th17 cell development.
Further research could explore the precise mechanisms underlying RORC2-mediated Treg resistance.
Understanding RORC2's role may offer therapeutic targets for immune-mediated diseases involving Th17 cells.