Erythroid Differentiation Regulator 1 Strengthens TCR Signaling by Enhancing PLCγ1 Signal Transduction Pathway

Myun Soo Kim, Dongmin Park, Sora Lee, Sunyoung Park, Kyung Eun Kim, Tae Sung Kim, Hyun Jeong Park, Daeho Cho

Research output: Contribution to journalArticlepeer-review


Erythroid differentiation regulator 1 (Erdr1) has previously been reported to control thymocyte selection via TCR signal regulation, but the effect of Erdr1 as a TCR signaling modulator was not studied in peripheral T cells. In this report, it was determined whether Erdr1 affected TCR signaling strength in CD4 T cells. Results revealed that Erdr1 significantly enhanced the anti-TCR antibody-mediated activation and proliferation of T cells while failing to activate T cells in the absence of TCR stimulation. In addition, Erdr1 amplified Ca2+ influx and the phosphorylation of PLCγ1 in CD4 T cells with the TCR stimuli. Furthermore, NFAT1 translocation into nuclei in CD4 T cells was also significantly promoted by Erdr1 in the presence of TCR stimulation. Taken together, our results indicate that Erdr1 positively modulates TCR signaling strength via enhancing the PLCγ1/Ca2+ /NFAT1 signal transduction pathway.

Original languageEnglish
Article number844
JournalInternational journal of molecular sciences
Issue number2
Publication statusPublished - 2022 Jan 1

Bibliographical note

Funding Information:
Funding: This research was supported by Korea University grants (K1823521, K1917251) and a grant to Kine Sciences.

Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.


  • Erdr1
  • PLCγ1
  • TCR signal modulation

ASJC Scopus subject areas

  • Catalysis
  • Molecular Biology
  • Spectroscopy
  • Computer Science Applications
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry


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