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DUSP1 inhibits cell proliferation, metastasis and invasion and angiogenesis in gallbladder cancer

Jiliang Shen1, Senjun Zhou1, Liang Shi1

  • 1Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou 310016, China.

Oncotarget
|January 28, 2017
PubMed

Insights

Dual-specific phosphatase DUSP1 inhibits gallbladder cancer (GBC) growth and metastasis. Targeting the DUSP1-pERK-MMP2/VEGF pathway may offer new therapeutic strategies for GBC.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Dual-specificity phosphatase 1 (DUSP1/MKP1) regulates mitogen-activated protein kinase (MAPK) signaling.
  • DUSP1 plays a role in various cancers, but its function in gallbladder cancer (GBC) is largely uncharacterized.

Purpose of the Study:

  • To investigate the role and mechanism of DUSP1 in gallbladder cancer (GBC) progression.
  • To explore DUSP1 as a potential therapeutic target for GBC.

Main Methods:

  • In vitro studies using GBC cell lines (SGC996 and GBC-SD) to assess proliferation, migration, and invasion.
  • In vivo studies using a mouse xenograft model with SGC996 cells to evaluate tumor growth and metastasis.
  • Analysis of signaling pathways including DUSP1-pERK/MAPK-MMP2 and VEGF expression.

Main Results:

  • DUSP1 significantly inhibited GBC cell proliferation, migration, and invasion in vitro.
  • DUSP1 suppressed GBC tumor growth and metastasis in vivo.
  • Tumor suppression by DUSP1 was mediated through the DUSP1-pERK/MAPK-MMP2 signaling pathway.
  • DUSP1 impaired angiogenesis by suppressing VEGF expression, thereby reducing tumor metastasis.

Conclusions:

  • DUSP1 acts as a tumor suppressor in gallbladder cancer.
  • DUSP1 inhibits GBC growth and metastasis by regulating the DUSP1-pERK-MMP2/VEGF axis.
  • The DUSP1-pERK-MMP2/VEGF signaling pathway represents a potential target for novel GBC therapies and biomarkers.
Keywords:
DUSP1MMP2angiogenesisgallbladder cancermetastasis

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