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dUev1a modulates TNF-JNK mediated tumor progression and cell death in Drosophila

Xianjue Ma1, Lixia Yang, Yang Yang

  • 1Department of Interventional Radiology, Shanghai 10th People's Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Science and Technology, Tongji University, Shanghai 200092, China.

Developmental Biology
|June 4, 2013
PubMed

Insights

Loss of dUev1a suppresses tumor growth and invasion by modulating the TNF-JNK pathway. This study identifies dUev1a as a key regulator in JNK signaling, impacting cell death and tumor progression in metazoans.

Area of Science:

  • Cell Biology
  • Oncology
  • Genetics

Background:

  • Loss of cell polarity and oncogenic Ras signaling drive JNK-dependent tumor growth and invasion.
  • Identifying genes that modulate tumor progression is crucial for understanding cancer development.

Purpose of the Study:

  • To identify novel genes involved in JNK-mediated tumor progression using a genetic screen in Drosophila.
  • To elucidate the role of dUev1a, an ortholog of mammalian Uev1, in JNK signaling pathways.

Main Methods:

  • Conducted a genetic screen in Drosophila to identify suppressors of lgl(-/-)/Ras(V12) induced tumor growth.
  • Utilized Drosophila models to investigate the function of dUev1a in JNK-mediated cell invasion and death.
  • Examined the interaction of dUev1a with other signaling components like Bendless and dTRAF2.

Main Results:

  • Loss of dUev1a significantly suppressed JNK-mediated tumor growth and invasion induced by lgl(-/-)/Ras(V12).
  • dUev1a deficiency also suppressed JNK-mediated cell invasion and cell death triggered by the TNF ortholog Eiger.
  • dUev1a was found to cooperate with Bendless in activating JNK signaling via dTRAF2.

Conclusions:

  • dUev1a is an essential component of the evolutionarily conserved TNF-JNK signaling pathway.
  • dUev1a plays a critical role in modulating tumor progression and cell death in metazoans.
  • Targeting dUev1a or related pathways could offer new therapeutic strategies for cancer treatment.
Keywords:
Cell deathJNKTNFTumor invasiondUev1a

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