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Updated: Jun 5, 2025
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In vitro Cell Migration and Invasion Assays
Published on: June 1, 2014
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Integrin α1 upregulation by TF:FVIIa complex promotes cervical cancer migration through PAR2-dependent MEK1/2
Nagarajan Paranitharan1, Shivangi Kataria1, Vijaya Anand Arumugam2
1Department of Biotechnology, Bharathiar University, Coimbatore, India.
Biochemical and Biophysical Research Communications
|December 10, 2024
Summary
The tissue factor (TF):FVIIa complex activates protease-activated receptor 2 (PAR2) signaling, increasing integrin α1 expression and promoting cervical cancer cell migration. This TF:FVIIa:PAR2 pathway offers potential therapeutic targets for cancer treatment.
Area of Science:
- Oncology
- Molecular Biology
- Cell Biology
Background:
- Tissue factor (TF) and protease-activated receptor 2 (PAR2) are implicated in cancer progression.
- Integrins are crucial for cancer cell adhesion and migration.
Purpose of the Study:
- To investigate the crosstalk between the TF:FVIIa complex, PAR2 signaling, and integrin α1 expression in cervical cancer.
- To elucidate the role of this pathway in cancer cell migration.
Main Methods:
- Analysis of The Cancer Genome Atlas (TCGA) data for gene correlations.
- Western blotting and RT-PCR to assess protein and gene expression.
- Functional cell migration assays and pathway inhibition studies.
Main Results:
- Positive correlation found between integrin α1 (ITGA1) and both TF and PAR2 genes in reproductive cancers.
- TF:FVIIa complex transactivates PAR2, leading to MEK1/2 phosphorylation and increased integrin α1 expression.
- Inhibition of PAR2 or MEK1/2 reduced FVIIa-induced integrin α1 expression; blocking integrin α1 inhibited cell migration.
Conclusions:
- A novel signaling pathway involving TF:FVIIa:PAR2 axis modulating integrin α1 in cervical cancer cells was identified.
- This pathway significantly enhances cancer cell migration.
- Targeting the TF:FVIIa:PAR2 axis or downstream integrins may offer new therapeutic strategies for cancer.
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