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Sex, life, and death in MYC-driven lymphomagenesis

Chi V Dang1

  • 1Ludwig Institute for Cancer Research, New York, NY 10017, USA; The Wistar Institute, Philadelphia, PA 19104, USA.

Molecular Cell
|October 8, 2021
PubMed

Insights

Inactivating RNA helicase DDX3X relieves MYC-induced stress during tumor initiation. Subsequently, DDX3Y promotes progression in male MYC-driven lymphomas.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • MYC oncogene drives tumor initiation and progression.
  • Proteotoxic stress is a hallmark of cancer.
  • RNA helicases play critical roles in cellular processes.

Purpose of the Study:

  • To investigate the role of RNA helicase DDX3X in MYC-driven tumor initiation.
  • To explore the function of DDX3Y in the progression of MYC-driven lymphomas.

Main Methods:

  • Utilized genetic manipulation to inactivate DDX3X.
  • Analyzed gene expression and protein levels in lymphoma models.
  • Investigated the role of DDX3Y in disease progression.

Main Results:

  • Inactivation of DDX3X alleviated MYC-induced proteotoxic stress, inhibiting tumor initiation.
  • DDX3Y was found to be induced in male MYC-driven lymphomas.
  • DDX3Y expression correlated with disease progression.

Conclusions:

  • DDX3X is a potential therapeutic target for inhibiting MYC-driven tumor initiation.
  • DDX3Y is implicated in the progression of male MYC-driven lymphomas, suggesting a role in disease advancement.

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