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Updated: May 8, 2026

Quantitative PCR-based Assay to Measure Sonic Hedgehog Signaling in Cellular Model of Ciliogenesis
Published on: January 31, 2025
Suppression of growth and migration by blocking the Hedgehog signaling pathway in gastric cancer cells
Runwei Yan1, Xiang Peng, Xiaogang Yuan
1Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, No.17 Yongwai street, Donghu district, Nanchang, 330006, China.
Purpose:
Previous studies have indicated that Hedgehog signaling is essential for gastric cancer development, but its precise role is still unclear. The aim of this study was to clarify the role of Hedgehog signaling in gastric cancer development.
Methods:
The expression of key Hedgehog signaling components in clinical samples of sequential gastric cancer stages was assessed by immunohistochemistry. The roles and regulatory mechanisms of Hedgehog signaling in human gastric cancer cells and normal gastric epithelial cells were investigated using multiple cell biological approaches and cDNA microarray analyses.
Results:
Hedgehog signaling was found to be abnormally activated in a ligand-independent manner during gastric cancer development. Gli1 over-expression and reduced SuFu expression were found to be typical events in gastric cancer tissues. Gli1 over-expression was found to correlate with a poorly differentiated histology, advanced clinical stage, membrane serosa infiltration and lymph node metastasis in patients with gastric cancer. Data obtained from multiple cell biological assays showed that human gastric cancer cells require active Hedgehog signaling for survival, proliferation, migration and colony formation. N-Shh treatment significantly enhanced the migration, invasion and colony formation of gastric cancer cells. Moreover, the results of cDNA microarray analyses indicated that after treatment with cyclopamine or GANT61 (inhibitors of Hedgehog signaling), differentially expressed genes in gastric cancer cells were enriched in the apoptosis and MAPK pathways. Inhibitors of the Hedgehog pathway were found to suppress gastric cancer cell growth via apoptosis induction.
Conclusions:
Our findings indicate a vital role of the activated Hedgehog signaling pathway in promoting gastric initiation and progression. The Hedgehog signaling pathway may serve as a target for gastric cancer therapy.
Insights
Hedgehog signaling is crucial for gastric cancer growth and survival. Inhibiting this pathway induces apoptosis and suppresses cancer progression, suggesting it as a therapeutic target.
Area of Science:
- Oncology
- Molecular Biology
- Cell Biology
Background:
- Hedgehog signaling is implicated in gastric cancer, but its exact role remains undefined.
- Understanding Hedgehog signaling's function is key to developing new gastric cancer treatments.
Purpose of the Study:
- To elucidate the role of Hedgehog signaling in gastric cancer development.
- To investigate the mechanisms by which Hedgehog signaling influences gastric cancer progression.
Main Methods:
- Immunohistochemistry assessed Hedgehog pathway components in clinical gastric cancer samples.
- Cell biological assays and cDNA microarray analyses explored pathway roles in gastric cancer cells.
Main Results:
- Hedgehog signaling is aberrantly activated in gastric cancer, independent of ligand.
- Gli1 overexpression and SuFu reduction correlate with advanced disease and metastasis.
- Gastric cancer cells depend on active Hedgehog signaling for proliferation and migration; inhibitors induce apoptosis.
Conclusions:
- Activated Hedgehog signaling is vital for gastric cancer initiation and progression.
- The Hedgehog pathway presents a promising therapeutic target for gastric cancer treatment.
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