Diagnostic Significance of Downregulated circMORC3 as a Molecular Biomarker of Hypopharyngeal Squamous Cell Carcinoma: A Pilot Study

Source: Cancer Management and Research - Category: Cancer & Oncology Tags: Cancer Management and Research Source Type: research

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This study aimed to evaluate the presence and prognostic value of tumor-infiltrating T cells in the tumor epithelium in advanced stage, HPV-negative head and neck squamous cell carcinoma (HNSCC) patients treated with primary chemoradiotherapy using digital pathology.MethodsPre-treatment biopsies from 80 oropharyngeal, 52 hypopharyngeal, and 29 laryngeal cancer patients were collected in a tissue microarray (TMA) and  immunohistochemically stained for T-cell markers CD3, CD4, CD8, FoxP3, and PD1, and for immune checkpoint PD-L1. For each marker, the number of positive tumor-infiltrating lymphocytes (TILs) per mm2 ...
Source: Cancer Immunology, Immunotherapy - Category: Cancer & Oncology Source Type: research
AbstractObjectiveTo clarify the prognostic role of human papilloma virus (HPV) status among patients with hypopharyngeal carcinoma.MethodsSurveillance, Epidemiology and End Results (SEER) HPV head and neck cancer database has been accessed and cases with hypopharyngeal squamous cell carcinoma with known HPV status were retrieved. Kaplan –Meier survival estimates were used to evaluate the impact of HPV status on overall survival outcomes of included patients and multivariable cox regression analysis was used to assess the impact of HPV status on overall and head and neck cancer-specific survival.ResultsA total of 1157...
Source: Clinical and Translational Oncology - Category: Cancer & Oncology Source Type: research
ConclusionsPCE as IC was feasible, with promising efficacy and no effect on compliance with subsequent CRT in unresectable LA ‐SCCHN.
Source: Cancer Medicine - Category: Cancer & Oncology Authors: Tags: ORIGINAL RESEARCH Source Type: research
AbstractWe performed a prospective trial to assess the clinical benefit of a tailored gene set built on a next-generation sequencing (NGS) platform in patients with recurrent or metastatic head and neck squamous cell carcinoma (HNSCC). Archived tumor tissue obtained from patients with recurrent or metastatic HNSCC was analyzed for variants by a tailored Comprehensive Cancer Gene set of 40 genes (CCG-40) performed on a NGS platform. These data were provided to clinicians to inform treatment decisions. The primary endpoint was clinical benefit (disease control) that resulted from selection and administration of a targeted th...
Source: Medical Oncology - Category: Cancer & Oncology Source Type: research
CONCLUSIONS: There was no observed difference in the time to development of DM between the HPV-/unknown and HPV+ HNSCC groups. However, the HPV+ HNSCC group showed a higher rate of DM to the lung compared to the HPV-/unknown -HNSCC group (p = 0.002). PMID: 31846962 [PubMed - as supplied by publisher]
Source: Oncology - Category: Cancer & Oncology Authors: Tags: Oncology Source Type: research
Abstract The highest number (35.1% of global incident cases) of new oropharyngeal (OP) and hypopharyngeal (HP) cancer cases was reported in South-Central Asia. The highest incidence of HP cancer in India was reported in East Khasi Hills District of Meghalaya, Aizawl District of Mizoram, and Kamrup Urban District of Assam. HP and OP cancer showed the highest mortality rate, worst prognoses and the highest rate of nodal metastases and distant metastases. Thus, research is required to detect specific biomarkers for early prevention and diagnosis for these cancers. Oral microbiome signatures in saliva are considered a...
Source: Archives of Microbiology - Category: Microbiology Authors: Tags: Arch Microbiol Source Type: research
Conclusion.Compared with SCCHN, SmCCHN carries a worse survival and is more likely to present with more advanced stage.Implications for Practice.Small cell carcinoma of the head and neck (SmCCHN) is a rare subtype of head and neck cancer. In this Surveillance, Epidemiology, and End Results (SEER) data analysis, the characteristics and survival of SmCCHN are compared with those of the common squamous cell carcinoma of the head and neck. Results show that SmCCHN carries a worse prognosis and tends to present at a more advanced stage; SmCCHN also is ten times more likely to originate from the salivary glands. These findings m...
Source: The Oncologist - Category: Cancer & Oncology Authors: Tags: Head and Neck Cancers Source Type: research
ConclusionIn summary, our deactivation model of MALAT1 disentangled the active function of it as a regulator of gene expression governing the hallmarks of laryngeal and hypopharyngeal cancer. Blocking this long non-coding RNA may restrain the development of laryngeal cancer.
Source: European Archives of Oto-Rhino-Laryngology - Category: ENT & OMF Source Type: research
In this study, we found that 3-phosphoinositide-dependent protein kinase 1 (PDK1 or PDPK1) was overexpressed in HSCC. The overexpression was positively correlated lymph node metastasis, clinical stage, and distant metastasis and indicated poor outcome. Loss and gain-of-function revealed that PDK1 increased cell proliferation, migration and invasion in vitro as well as tumor growth and metastasis in vivo. Mechanically, PDK1 induced epithelial-mesenchymal transition and promoted metastasis by activating the Notch1 signaling pathway. We further illustrated that PDK1 bound with the Notch1 intracellular domain, thereby inhibiti...
Source: Experimental Cell Research - Category: Cytology Authors: Tags: Exp Cell Res Source Type: research
This study aimed to test the role of Cx43 protein on Bcl-2 expression, tumor progression and response to taxane-based treatment in HNSCC. Human papillomavirus (HPV) negative HNSCC cell lines were tested for paclitaxel sensitivity through measuring apoptosis induction, cell viability and changes in Cx43 and Bcl-2 levels using flow cytometry, cell viability assay, immunocytochemistry and western blot. Inhibition of Cx43 expression using siRNA increased Bcl-2 protein levels in SCC25 (tongue squamous cell carcinoma) cells, while forced Cx43 expression reduced Bcl-2 levels and supported paclitaxel cytotoxicity in FaDu (hypophar...
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Article Source Type: research
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