CAFs-derived TIAM1 Promotes OSCC Cell Growth and Metastasis by Regulating ZEB2
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View abstract on PubMed
Summary
This summary is machine-generated.Cancer-associated fibroblasts (CAFs) promote oral squamous cell carcinoma (OSCC) growth and metastasis. CAFs secrete TIAM1, which upregulates ZEB2, driving OSCC progression and offering a potential therapeutic target.
Area Of Science
- Oncology
- Cell Biology
- Cancer Research
Background
- Cancer-associated fibroblasts (CAFs) are key players in the tumor microenvironment, influencing tumorigenesis and progression.
- The specific mechanisms by which CAFs regulate oral squamous cell carcinoma (OSCC) remain incompletely understood.
- Understanding CAF-OSCC interactions is crucial for developing effective cancer therapies.
Purpose Of The Study
- To elucidate the regulatory role of CAFs in oral squamous cell carcinoma (OSCC) development.
- To investigate the involvement of T-Lymphoma Invasion and Metastasis 1 (TIAM1) and zinc finger E-box-binding homeobox 2 (ZEB2) in CAF-mediated OSCC progression.
- To evaluate the therapeutic potential of targeting the CAF-TIAM1-ZEB2 axis in OSCC.
Main Methods
- OSCC cells were cultured with CAF-conditioned medium (CAF-CM) to assess proliferation, migration, and invasion.
- Protein and mRNA levels of TIAM1, ZEB2, E-cadherin, and N-cadherin were analyzed using Western blot and RT-qPCR.
- In vivo studies involved subcutaneous inoculation of OSCC cells with or without TIAM1-silencing CAFs in nude mice.
Main Results
- CAFs significantly enhanced OSCC cell proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT).
- TIAM1 and ZEB2 were upregulated in OSCC patients and cells; TIAM1 was highly expressed in CAFs.
- TIAM1 knockdown in CAFs partially abrogated CAF-driven OSCC promotion, suggesting TIAM1 secretion by CAFs.
Conclusions
- TIAM1 secreted by CAFs promotes OSCC growth and metastasis, potentially by upregulating ZEB2 expression.
- The TIAM1-ZEB2 pathway is a critical mediator of CAF influence on OSCC malignant behaviors.
- Targeting TIAM1 secreted by CAFs represents a promising therapeutic strategy for oral squamous cell carcinoma.
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