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Constitutive DUSP2 expression enhances lymphoid cell proliferation by activating CDK1 and promotes lymphomagenesis

  • Yu Qian
  • , Jutatip Panaampon
  • , Bjoern Chapuy
  • , Xueyan Zhang
  • , Xiujuan Zhao
  • , Zhe Wang
  • , Pengfei Zhang
  • , Tongchai Payungwong
  • , Aretina Zhang
  • , Qiang Ke
  • , Jing Zhong
  • , Ping Yuan
  • , Lei Zhang
  • , Min Hong
  • , Il Kyu Choi
  • , Jiankun Guan
  • , Dinis Pedro Calado
  • , Scott Rodig
  • , Olga Pozdnyakova
  • , Klaus Rajewsky
  • Susana A. Godinho, Siwanon Jirawatnotai, Hao Wu, Margaret A. Shipp, Stephanie K. Dougan, Baochun Zhang
  • Dana-Farber Cancer Institute
  • Harvard Medical School
  • Charité-Universitätsmedizin Berlin
  • The First Affiliated Hospital of Guangzhou Medical University
  • Tianjin Medical University
  • Children's Hospital
  • Siriraj Hospital
  • Hangzhou Normal University
  • First Affiliated Hospital of University of South China
  • The First Affiliated Hospital of Zhengzhou University
  • Shanxi Dayi Hospital
  • First Affiliated Hospital of Kunming Medical University
  • The Francis Crick Institute
  • King's College London
  • Brigham and Women's Hospital
  • Max Delbrueck Center for Molecular Medicine and Charité- Universiätsmedizin Berlin
  • Barts and The London School of Medicine and Dentistry

Research output: Contribution to journalArticlepeer-review

Abstract

DUSP2 is known as a nuclear dual-specificity phosphatase, highly restricted to immune cells. Its expression is induced by antigenic and mitogenic stimuli and has been implicated in immune cell differentiation and functions. However, its role in immune cell mitotic proliferation and hematologic malignancies has not been rigorously examined. Here, we show DUSP2 is highly expressed in human B-cell, T cell, and other hematologic malignancies. Ablating DUSP2 expression in lymphoma cell lines decreases growth and viability. In mice, transgenic Dusp2 expression promotes B-cell and T cell proliferation, and malignant transformation. Mechanistically, DUSP2 promotes cell cycle progression by activating CDK1 through dephosphorylation at inhibitory Tyr15 and Thr14, which is mediated not by its own phosphatase activity, but instead by a structural motif that recruits CDC25 phosphatases. This work reveals an unexpected oncogenic role for DUSP2 in lymphoid malignancies and the function of a structural motif, which represents an appealing target site for therapeutic intervention.

Original languageEnglish
Article number117652
JournalCell Reports
Volume45
Issue number7
DOIs
Publication statusPublished - 28 Jul 2026

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • CDC25
  • CDK1
  • DUSP2, PAC-1
  • cell cycle
  • hematologic malignancies
  • immune cell
  • lymphomagenesis

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