Human N-myc downstream-regulated gene 1 (NDRG1) is a metastasis suppressor gene with several potential functions, including cell differentiation, cell cycle regulation and response to hormones, nickel and stress. The purpose of this study was to investigate the immunoexpression of NDRG1 in oral and oropharyngeal squamous cell carcinomas searching for its role in the clinical course of these tumors. We investigated immunohistochemical expression of NDRG1 protein in 412 tissue microarray cores of tumor samples from 103 patients with oral and oropharyngeal squamous cell carcinomas and in 110 paraffin-embedded surgical margin sections. The results showed NDRG1 up-regulation in 101/103 (98.1 %) tumor samples, but no expression in any normal tissue sample. Western blot assays confirmed the immunohistochemical findings, suggesting that lower levels of NDRG1 are associated with a high mortality rate. NDRG1 overexpression was related to long-term specific survival (HR = 0.38; p = 0.009), whereas the presence of lymph-node metastasis showed the opposite association with survival (HR = 2.45; p = 0.013). Our findings reinforce the idea that NDRG1 plays a metastasis suppressor role in oral and oropharyngeal squamous cell carcinomas and may be a useful marker for these tumors.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s11033-012-1889-0 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Epidemiological trends in head and neck cancer in Nara Prefecture, Japan, from 2000-2021: The impact of the COVID-19 pandemic.
Auris Nasus Larynx
January 2025
Department of Otolaryngology-Head and Neck Surgery, Nara Medical University.
Objective: Epidemiological surveys were conducted in Nara Prefecture, Japan, to determine the prevalence of head and neck cancer in the region since 1986.
Methods: This study examined the dynamics of visits to 18 medical institutions treating head and neck cancer in Nara Prefecture from 2000 to 2021.
Results: A total of 8,605 patients were registered, with 4,788 being male and 3,787 female.
Morphology of the Soft Palate Tonsil Mucosa of Collared Peccary (Pecari tajacu, Linnaeus, 1758).
Anat Histol Embryol
January 2025
Laboratório de Morfologia e Atividade Física, São Paulo State University, Rio Claro, São Paulo, Brazil.
Collared Peccary (Pecari tajacu, Linnaeus, 1758) is a mammalian Tayassuidae species from tropical to semi-arid areas. The morphological features of the oral cavity in this species were identified and described. Tonsils are secondary lymphoid organs essential for contact with antigens due to food and air intake.
View Article and Find Full Text PDFPharyngeal airway dimensions and adipose distribution in the minipig.
J Oral Biol Craniofac Res
December 2024
Department of Orthodontics, University of Washington, Seattle, USA.
Objective: To evaluate the pharyngeal airway dimensions and regional pharyngeal adipose distribution in the young adult minipig model.
Materials And Methods: Eight 7-8-months-old Yucatan minipigs, half male and female, were sedated and placed prone to scan the pharyngeal region. Magnetic resonance imaging (MRI) was performed using dynamic turbo-field echo (TFE)-sequence with respiratory gating and adipose-weighted sequence.
Lemierre's Syndrome in a 16-Year-Old Man Associated with Resolution of Marked Widespread St Elevation and a Normal Troponin Level.
Eur J Case Rep Intern Med
December 2024
Respiratory Department, Barnsley District General Hospital, Barnsley, UK.
Unlabelled: A 16-year-old man presented to the Accident and Emergence services with a 10-day history of shortness of breath, sore throat, vomiting, diarrhoea, poor oral intake, chest pain, jaundice, diplopia and reduced urine output. He was initially treated for sepsis, however, subsequent imaging and blood cultures confirmed the diagnosis of Lemierre's syndrome (LS). LS, also known as necrobacillosis or post-pharyngitis anaerobic septicaemia is comprised of a triad of metastatic septic emboli secondary to pharyngitis, bacteraemia, and internal jugular vein thrombophlebitis.
View Article and Find Full Text PDFCarcinogenetic mechanisms employed by the oral microbiome: a narrative review.
Am J Med Sci
January 2025
University of Arizona College of Medicine - Tucson, AZ, USA; Medical Scientist Training MD-PhD Program, University of Arizona College of Medicine Tucson, AZ, USA. Electronic address:
Cancers of the oral cavity, lip, salivary gland, and oropharynx cause substantial global disease burden. While tobacco-use and alcohol use are highly associated with oral cancers, the rising incidence of disease in patients who do not use tobacco or alcohol points to additional carcinogenic risk factors. Chronic inflammation, disruption of the oral microbiome, and dysbiosis are becoming more widely implicated in the pathogenesis of oral cancer.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!