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Isolation of Murine Peritoneal Macrophages to Carry Out Gene Expression Analysis Upon Toll-like Receptors Stimulation
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Low Expression of Toll-like Receptor 4 Is Associated With Poor Prognosis in Bladder Cancer
Yoshito Kusuhara1, Kei Daizumoto1, Kaichi Kawai1
1Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan.
Anticancer Research
|February 4, 2019
Summary
Low Toll-like receptor 4 (TLR4) expression correlates with bladder cancer progression. Depleting TLR4 enhances tumor cell invasion and epithelial differentiation, indicating TLR4’s role in suppressing cancer advancement.
Area of Science:
- Oncology
- Immunology
- Molecular Biology
Background:
- Bladder cancer (BCa) remains a significant health concern with complex progression mechanisms.
- Toll-like receptor 4 (TLR4) is implicated in various cancers, but its specific role in BCa progression is not fully understood.
Purpose of the Study:
- To investigate the relationship between Toll-like receptor 4 (TLR4) expression and bladder cancer (BCa) progression.
- To elucidate the functional role of TLR4 in BCa cell invasiveness and differentiation.
Main Methods:
- Analysis of TLR4 expression in BCa patients using public databases and immunohistochemistry.
- Assessment of BCa cell invasive capabilities following TLR4 knockdown.
- Microarray analysis of gene expression profiles in TLR4-depleted BCa cells.
Main Results:
- TLR4 expression was inversely associated with the prognosis of invasive BCa patients.
- TLR4 depletion significantly increased the invasive potential of BCa cells.
- Gene expression profiling indicated that TLR4 depletion promotes epithelial differentiation and is low in squamous differentiation areas.
Conclusions:
- Low expression of TLR4 is correlated with advanced bladder cancer.
- TLR4 may act as a tumor suppressor in bladder cancer progression by inhibiting cell invasion and promoting differentiation.
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