Cited by 81T-cell and B-cell ImmunologyDevelopmental Biology and Gene RegulationGenomics and Chromatin Dynamics

GATA-3 Dose-Dependent Checkpoints in Early T Cell Commitment

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Scripture-Adams, Deirdre D, Damle, Sagar S, Li, Long, Elihu, Koorosh J, Qin, Shuyang, Arias, Alexandra M, Butler, Robert R, Champhekar, Ameya +2 more·2014·The Journal of Immunology

Abstract

GATA-3 expression is crucial for T cell development and peaks during commitment to the T cell lineage, midway through the CD4−CD8− (double-negative [DN]) stages 1–3. We used RNA interference and conditional deletion to reduce GATA-3 protein acutely at specific points during T cell differentiation in vitro. Even moderate GATA-3 reduction killed DN1 cells, delayed progression to the DN2 stage, skewed DN2 gene regulation, and blocked appearance of the DN3 phenotype. Although a Bcl-2 transgene rescued DN1 survival and improved DN2 cell generation, it did not restore DN3 differentiation. Gene expression analyses (quantitative PCR, RNA sequencing) showed that GATA-3–deficient DN2 cells quickly upregulated genes, including Spi1 (PU.1) and Bcl11a, and downregulated genes, including Cpa3, Ets1, Zfpm1, Bcl11b, Il9r, and Il17rb with gene-specific kinetics and dose dependencies. These targets could mediate two distinct roles played by GATA-3 in lineage commitment, as revealed by removing wild-type or GATA-3–deficient early T lineage cells from environmental Notch signals. GATA-3 worked as a potent repressor of B cell potential even at low expression levels, so that only full deletion of GATA-3 enabled pro–T cells to reveal B cell potential. The ability of GATA-3 to block B cell development did not require T lineage commitment factor Bcl11b. In prethymic multipotent precursors, however, titration of GATA-3 activity using tamoxifen-inducible GATA-3 showed that GATA-3 inhibits B and myeloid developmental alternatives at different threshold doses. Furthermore, differential impacts of a GATA-3 obligate repressor construct imply that B and myeloid development are inhibited through distinct transcriptional mechanisms. Thus, the pattern of GATA-3 expression sequentially produces B lineage exclusion, T lineage progression, and myeloid-lineage exclusion for commitment.

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Crossref · 10.4049/jimmunol.1301663

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  • The earliest fetal thymocytes are different from later waves of developing thymocytes in their abilities to generate particular classes of TCRγδ cells and in their extremely fast differentiation kinetics, both in vivo and in fetal thymic organ culture or stromal coculture systems.

    “It has long been recognized that the earliest fetal thymocytes are different from later waves of developing thymocytes in terms of their abilities to generate particular classes of TCRγδ cells (134) and in terms of their extremely fast differentiation kinetics, both in vivo and in fetal thymic organ culture or stromal coculture systems (104, 133, 135).”

    From Mechanisms of Action of Hematopoietic Transcription Factor PU.1 in Initiation of T-Cell Development (2019) · cites this paper as [104]

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  • The best current candidates for this silencing activity include GATA-3, TCF-1 or LEF-1, and especially Runx1, probably working in a dose-dependent combination, although the mechanism through which they finally achieve the ability to repress PU.1 has not yet been reported.

    “The best current candidates for this silencing activity include GATA-3 (104, 105), TCF-1 or LEF-1 (37), and especially Runx1 (80, 150–152), probably working in a dose-dependent combination, although the mechanism through which they finally achieve the ability to repress PU.1 has not yet been reported.”

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  1. [3]Hendriks RW Nawijn MC Engel JD van Doorninck H Grosveld F Karis A Expression of the transcription factor GATA-3 is required for the development of the earliest T cell progenitors and correlates with stages of cellular proliferation in the thymus. European journal of immunology 1999 29 1912 1918 10382753

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Authors
Scripture-Adams, D. D., Damle, S. S., Li, L., Elihu, K. J., Qin, S., Arias, A. M., Butler, R. R., Champhekar, A., Zhang, J. A., & Rothenberg, E. V.
Affiliations
California Institute of Technology (US)
Corresponding author
Rothenberg, Ellen V
Venue
The Journal of Immunology
Published
2014-10-01
Volume
193
Issue
7
Pages
3470-3491
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W1823105344
Cited by
81
References
57
Citations by year
2026: 4 · 2025: 3 · 2024: 6 · 2023: 4 · 2022: 6 · 2021: 8 · 2020: 9 · 2019: 12 · 2018: 8 · 2017: 5 · 2016: 9 · 2015: 5 · 2014: 1 · 2013: 1
FWCI
3.05
Type
journal article
Language
en
Open access
Locations
  • The Journal of Immunology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
Funders
  • National Cancer Institute (R01CA98925, R01CA90233, R01CA090233, RC2CA148278, R01CA098925)
  • National Institute of Allergy and Infectious Diseases (R01AI95943, R01AI095943)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (5T32HD07257, T32HD007257)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
Keywords
GATA3, T cell development, T cell lineage commitment, double-negative thymocytes, BCL11B, Bcl-2, Notch signaling, transcriptional repression, PU.1, BCL11A, conditional gene deletion
MeSH terms
Animals, Cell Line, Repressor Proteins, Tamoxifen, Signal Transduction, Up-Regulation, Antineoplastic Agents, Hormonal, Proto-Oncogene Proteins c-bcl-2, Myeloid Cells, Tumor Suppressor Proteins, GATA3 Transcription Factor, Mice, Receptors, Notch, Precursor Cells, T-Lymphoid

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