SMAD4 Somatic Mutations in Head and Neck Carcinoma Are Associated With Tumor Progression

This report is the first study where NGS analysis based on multiplex-PCR is used to demonstrate the imminent occurrence of missense SMAD4 mutations in HNSCC cells. The gene analysis that we performed may support the identification of SMAD4 mutations as a diagnostic marker or even as a potential therapeutic target in head and neck cancer. Moreover, the analytic strategy proposed for the detection of mutations in the SMAD4 gene may be validated as a platform to assist mutation screening.
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research

Related Links:

Authors: Carofino BL, Dinshaw KM, Ho PY, Cataisson C, Michalowski AM, Ryscavage A, Alkhas A, Wong NW, Koparde V, Yuspa SH Abstract Chloride intracellular channel 4 (CLIC4) is a tumor suppressor implicated in processes including growth arrest, differentiation, and apoptosis. CLIC4 protein expression is diminished in the tumor parenchyma during progression in squamous cell carcinoma (SCC) and other neoplasms, but the underlying mechanisms have not been identified. Data from The Cancer Genome Atlas suggest this is not driven by genomic alterations. However, screening and functional assays identified miR-142-3p as a re...
Source: Oncotarget - Category: Cancer & Oncology Tags: Oncotarget Source Type: research
Publication date: Available online 9 January 2020Source: Stem Cell ReportsAuthor(s): Raghava R. Sunkara, Rahul M. Sarate, Priyanka Setia, Sanket Shah, Sanjay Gupta, Pankaj Chaturvedi, Poonam Gera, Sanjeev K. WaghmareSummaryWnt signaling is involved in the regulation of cancer stem cells (CSCs); however, the molecular mechanism involved is still obscure. SFRP1, a Wnt inhibitor, is downregulated in various human cancers; however, its role in tumor initiation and CSC regulation remains unexplored. Here, we used a skin carcinogenesis model, which showed early tumor initiation in Sfrp1−/− (Sfrp1 knockout) mice and i...
Source: Stem Cell Reports - Category: Stem Cells Source Type: research
Conclusions: Our results indicate that YAP1 overexpression is involved in HNSCC tumorigenesis and verteporfin is a potential therapeutic drug for HNSCC.
Source: Journal of Cancer - Category: Cancer & Oncology Authors: Tags: Research Paper Source Type: research
In this study, by analyzing online RNA-Seq data, we found that RHPN1-AS1 was upregulated in HNSCC tissues and that its expression level was associated with neoplasm histologic grade. High expression of RHPN1-AS1 was also confirmed in HNSCC tissues. Knockdown of RHPN1-AS1 inhibited tumor cell migration, invasion and proliferation in HNSCC. Furthermore, inhibition of RHPN1-AS1 suppressed the expression of epithelial-mesenchymal transition (EMT)-related genes (β-Catenin, Claudin-1 and Vimentin) in HNSCC cells. Collectively, our results suggest that RHPN1-AS1, acting as an oncogene, may be a potential diagnostic and thera...
Source: Journal of Cancer - Category: Cancer & Oncology Authors: Tags: Research Paper Source Type: research
ConclusionHOXB5 may be a novel therapeutic target as an oncogenic driver by regulating EGFR transcription in HNSCC.
Source: European Journal of Surgical Oncology (EJSO) - Category: Surgery Source Type: research
Authors: Guo B, Wang L, Qin X, Shen Y, Ma C Abstract A number of studies have reported the upregulation and functional roles of Jumonji domain-containing protein 6 (JMJD6) in various types of cancer. However, little is known regarding the clinical significance of JMJD6 in head and neck squamous cell carcinoma (HNSCC), particularly in terms of large-cohort data. In the present study, bioinformatics analysis was performed, using the University of California Santa Cruz Xena Browser and the Gene Expression Profiling Interactive Analysis 2 server, based on the Cancer Genome Atlas HNSCC cohort. In addition, a validation ...
Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research
Abstract Cancer stem cells (CSCs) play a key role in carcinogenesis and progression of head and neck squamous cell carcinomas (HNSCC). The most common markers indicating for CSCs are: CD44, CD24, CD133, ALDH1A1. Our objective was to evaluate the prognostic potential of CSC markers in HNSCC. The study included 49 patients treated for primary HNSCC, 11 patients with upper respiratory tract epithelial dysplasia and 12 subjects with the normal pharyngeal mucosa as a control group. The frequency and expression levels of the four CSC markers were assessed by immunohistochemistry. Univariate and multivariate analyses wer...
Source: European Journal of Pharmacology - Category: Drugs & Pharmacology Authors: Tags: Eur J Pharmacol Source Type: research
Head and neck squamous cell carcinoma (HNSCC) is among the most common cancer types. Metastasis, the main cause of death by cancer, can be promoted by an inflammatory microenvironment, which induces epithelial-mesenchymal transition (EMT) through a NF-κB-mediated stabilization of Snail. Here, we aimed to explore how microRNAs (miRs) can affect cell survival and EMT in HNSCC cells under an inflammatory microenvironment. By using a high-content screening (HCS) approach, we evaluated alterations in morphometric parameters, as well as expression/localization of Snail/Slug, in HNSCC cells primed with TNF-α. Based on...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Abstract Over the past decades, studies of phytochemicals as modifiers of radiotherapeutic efficacy have become increasingly popular to improve the treatment outcome of human malignancies. In the current comprehensive review article, radiosensitizing effects of curcumin, a yellow-colored polyphenolic constituent of turmeric, in various preclinical cancer models, both In Vitro and In Vivo, are presented. Attenuation of radioadaptation and augmentation of irradiation-induced cancer cell killing are achieved through multifaceted action of curcumin on suppression of prosurvival and antiapoptotic factors. Mos...
Source: Nutrition and Cancer - Category: Cancer & Oncology Authors: Tags: Nutr Cancer Source Type: research
Cancers, Vol. 11, Pages 1583: CD200 Induces Epithelial-to-Mesenchymal Transition in Head and Neck Squamous Cell Carcinoma via β-Catenin-Mediated Nuclear Translocation Cancers doi: 10.3390/cancers11101583 Authors: Seung-Phil Shin A-RA Goh Hyeon-Gu Kang Seok-Jun Kim Jong-Kwang Kim Kyung-Tae Kim John H Lee Yong-Soo Bae Yuh-Seog Jung Sang-Jin Lee The membrane glycoprotein CD200 binds to its receptor CD200R1 and induces tolerance, mainly in cells of the myeloid lineage; however, information regarding its role in solid tumors is limited. Here, we investigated whether CD200 expression, which is enri...
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Article Source Type: research
More News: Cancer | Cancer & Oncology | Carcinoma | Epithelial Cancer | Genetics | Head and Neck Cancer | HNSCC | Skin Cancer | Squamous Cell Carcinoma | Study