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Related Experiment Video

Updated: Dec 31, 2025

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TGF-β induces ST2 and programs ILC2 development.

Li Wang1,2, Jun Tang1,2,3, Xia Yang1,2,4

  • 1Mucosal Immunology Section, National Institute of Dental and Craniofacial Research (NIDCR), National Institutes of Health (NIH), 30 Convent Drive, Bethesda, MD, 20892, USA.

Nature Communications
|January 9, 2020
PubMed
Summary
This summary is machine-generated.

Transforming growth factor-beta (TGF-β) signaling is crucial for the development of innate lymphoid cells type 2 (ILC2s). This pathway regulates ILC2 progenitor generation and enhances ST2 receptor expression, essential for ILC2 lineage commitment.

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Area of Science:

  • Immunology
  • Cell Biology
  • Developmental Biology

Background:

  • The molecular mechanisms governing innate lymphoid cell (ILC) development remain largely unelucidated.
  • Understanding these pathways is critical for deciphering immune system function and potential therapeutic targets.

Purpose of the Study:

  • To investigate the role of transforming growth factor-beta (TGF-β) signaling in the development of innate lymphoid cells (ILCs).
  • To identify specific ILC subsets influenced by TGF-β signaling and elucidate the underlying molecular mechanisms.

Main Methods:

  • Utilized genetic deficiency models targeting TGF-β receptor II in bone marrow progenitors.
  • Analyzed ILC subset development (ILC1, ILC2, ILC3) using flow cytometry and gene expression analysis.
  • Investigated the impact of TGF-β on ILC2 progenitor (ILC2p) and common helper-like innate lymphoid progenitor (CHILP) populations, including ST2 receptor expression.

Main Results:

  • Deficiency in TGF-β receptor II impaired the development of ILC2s, but not ILC1s or ILC3s.
  • TGF-β signaling was found to be essential for the generation and maintenance of ILC2 progenitors (ILC2p).
  • TGF-β signaling upregulated the expression of the IL-33 receptor gene (Il1rl1/ST2) in ILC2p and CHILP, partly via the MEK-dependent pathway.

Conclusions:

  • TGF-β signaling plays a critical role in programming ILC2 development from progenitor cells.
  • This pathway is specifically required for ILC2 lineage commitment and maintenance.
  • The findings reveal a novel function of TGF-β in regulating ST2 expression, a key receptor for ILC2 function.