Cross-Talk Between Hypoxia-Inducible Factors in Driving the Pathology of Oral Squamous Cell Carcinoma: An Immunohistochemical Analysis of the Role of Hypoxia-Inducible Factors and Cancer-Associated Fibroblasts
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View abstract on PubMed
Summary
This summary is machine-generated.Hypoxia-inducible factors (HIFs) are elevated in oral squamous cell carcinoma (OSCC), correlating with cancer-associated fibroblasts (CAFs). This suggests hypoxia influences CAF induction in oral cancer development.
Area Of Science
- Oncology
- Molecular Biology
- Cancer Research
Background
- Tumor hypoxia, characterized by low oxygen levels, is linked to hypoxia-inducible factors (HIFs).
- The role of HIFs in oral squamous cell carcinoma (OSCC) remains debated.
- The impact of hypoxia on cancer-associated fibroblasts (CAFs) within the tumor microenvironment requires further elucidation.
Purpose Of The Study
- To compare HIF-1α and HIF-2α expression in OSCC versus normal oral tissues.
- To investigate the association between HIF-1α/HIF-2α expression and OSCC clinicopathologic features.
- To determine the relationship between HIFs and CAFs in OSCC.
Main Methods
- Immunohistochemistry was used to assess HIF-1α, HIF-2α, and α-smooth muscle actin (α-SMA) expression.
- 50 OSCC and 50 normal oral mucosal (NOM) samples were analyzed.
- Statistical analyses included ANOVA, chi-square, and Mann-Whitney U tests.
Main Results
- HIF-1α, HIF-2α, and α-SMA expression were significantly higher in OSCC than in NOM (P < 0.001).
- HIF-1α and HIF-2α expression showed a positive correlation with α-SMA, a marker for CAFs.
- No significant association was found between HIF expression and tumor histologic grading.
Conclusions
- Elevated HIF expression in OSCC supports their role in the cancer's pathogenesis.
- The correlation between HIFs and α-SMA suggests hypoxia contributes to CAF induction in oral cancer.
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