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Quantitative PCR-based Assay to Measure Sonic Hedgehog Signaling in Cellular Model of Ciliogenesis
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Quantitative PCR-based Assay to Measure Sonic Hedgehog Signaling in Cellular Model of Ciliogenesis

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Sonic hedgehog pathway contributes to gastric cancer cell growth and proliferation

Jianhua Wan1, Ji Zhou2, Hailong Zhao1

  • 1State Key Laboratory of Silkworm Genome Biology, Southwest University , Chongqing, China .

Bioresearch Open Access
|May 8, 2014
PubMed

Insights

Blocking the Sonic Hedgehog (Shh) pathway with cyclopamine inhibits gastric cancer cell growth and tumor development. This study suggests targeting the Shh pathway as a potential gastric cancer treatment strategy.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Signaling Pathways

Background:

  • The Sonic Hedgehog (Shh) signaling pathway is frequently activated in gastrointestinal cancers.
  • Limited understanding exists regarding the Shh pathway's specific role in gastric cancer progression.

Purpose of the Study:

  • To investigate the effects of cyclopamine, a Shh pathway inhibitor, on gastric cancer cell growth and proliferation.
  • To evaluate the therapeutic potential of inhibiting the Shh pathway in gastric cancer models.

Main Methods:

  • Utilized gastric cancer cell lines (GAM-016, MKN-45) and primary cells.
  • Administered cyclopamine to assess its impact on cell cycle and apoptosis.
  • Conducted in vivo studies using NOD/SCID mouse xenografts to evaluate tumor growth inhibition.

Main Results:

  • Shh pathway molecules (SHH, PTCH, SMO, GLI1, GLI2) were found to be activated in gastric cancer cells.
  • Cyclopamine treatment resulted in cell cycle arrest and apoptosis, inhibiting cancer cell proliferation.
  • In vivo experiments showed significant suppression of tumor growth and development with cyclopamine.

Conclusions:

  • The Shh signaling pathway promotes gastric cancer cell proliferation and tumor development.
  • Inhibiting the Shh pathway with cyclopamine demonstrates therapeutic potential for gastric cancer treatment.
Keywords:
Sonic Hedgehogapoptosiscell cycle arrestcell proliferationcyclopamineprimary gastric cancer

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