ArticleCancer biomarkers : section A of Disease markers2018
Expression of protocadherin8: Function as a tumor suppressor in hypopharyngeal carcinoma.
Article in Cancer biomarkers : section A of Disease markers, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.
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Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Do Protocadherins Show Prognostic Value in the Carcinogenesis of Human Malignant Neoplasms? Systematic Review and Meta-Analysis.Asian Pacific journal of cancer prevention : APJCP · 2020Pooled it
- Article
- Protocadherin 8 (PCDH8) Inhibits Proliferation, Migration, Invasion, and Angiogenesis in Esophageal Squamous Cell Carcinoma.Medical science monitor : international medical journal of experimental and clinical research · 2020Article
- Suppressing UVRAG Induces Radiosensitivity by Triggering Lysosomal Membrane Permeabilization in Hypopharyngeal Squamous Cell Carcinoma.OncoTargets and therapy · 2020Article
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Authors and funding
4 authors.
Funding
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Abstract
Protocadherin8 (PCDH8), an integral membrane protein, was reported to be a tumor suppressor involved in tumorigenesis in cancers. We aimed to investigate the expression of PCDH8 and its clinicopathological significance in hypopharyngeal carcinoma. We also examined the possible inactivation mechanism of PCDH8. A total of 80 pairs of hypopharyngeal carcinoma tumor tissues and non-tumor tissues were investigated to examine the immunohistochemical expression of PCDH8. Prognostic value and clinicopathological significance of PCDH8 expression were examined by Kaplan-Meier and log-rank test and Cox's ones. Ten pairs of tumor tissues and non-tumor tissues were analyzed by RT-PCR and 4 pairs by Western blot respectively. Promoter methylation of PCDH8 was observed in 14 pairs of tumor tissues and non-tumor tissues by methylation-specific PCR (MSP). The expression of PCDH8 in tumor tissues was depressed immunohistochemically when compared with non-tumor tissues and was significantly lower in the advanced pathological stage. Meanwhile, the expression of PCDH8 served as an independent prognostic risk factor for overall survival of hypopharyngeal carcinoma. The mRNA and protein levels of PCDH8 in tumor tissues was also down-regulated than in non-tumor tissues. Moreover, aberrant promoter methylation of PCDH8 occurred frequently in tumor tissues, rather than in non-tumor tissues. For the first time, our study demonstrates the tumor-suppressive function of PCDH8 and its epigenetic inactivation by promoter methylation in hypopharyngeal carcinoma. It suggests that PCDH8 may serve as a useful prognostic biomarker and a potential therapeutic target for hypopharyngeal carcinoma patients.
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