Browsing by Subject "Tongue cancer"
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High relative density of lymphatic vessels predicts poor survival in tongue squamous cell carcinoma (2016)Tongue cancer has a poor prognosis due to its early metastasis via lymphatic vessels. The present study aimed at evaluating lymphatic vessel density, relative density of lymphatic vessel, and diameter of lymphatic vessels and its predictive role in tongue cancer. Paraffin-embedded tongue and lymph node specimens (n = 113) were stained immunohistochemically with a polyclonal antibody von Willebrand factor, recognizing blood and lymphatic endothelium and with a monoclonal antibody podoplanin, recognizing lymphatic endothelium. The relative density of lymphatic vessels was counted by dividing the mean number of lymphatic vessels per microscopic field (podoplanin) by the mean number of all vessels (vWf) per microscopic field. The high relative density of lymphatic vessels (aeyen80 %) was associated with poor prognosis in tongue cancer. The relative density of lymphatic vessels predicted poor prognosis in the group of primary tumor size T1-T2 and in the group of non-metastatic cancer. The lymphatic vessel density and diameter of lymphatic vessels were not associated with tongue cancer survival. The relative density of lymphatic vessels might have clinically relevant prognostic impact. Further studies with increased number of patients are needed.
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(2018)Objectives: No prognostic or predictive biomarkers for oral squamous cell carcinoma (OSCC) exist. We aimed to discover novel proteins, altered in OSCC, to be further investigated as potential biomarkers, and to improve understanding about pathways involved in OSCC. Materials and Methods: Proteomic signatures of seven paired healthy and OSCC tissue samples were identified using ultra-definition quantitative mass spectrometry, then analysed and compared using Anova, principal component analysis, hierarchical clustering and OPLS-DA modelling. A selection of significant proteins that were also altered in the serum from a previous study (PMID: 28632724) were validated immunohistochemically on an independent cohort (n = 66) to confirm immunopositivity and location within tumour tissue. Ingenuity Pathways Analysis was employed to identify altered pathways. Results: Of 829 proteins quantified, 257 were significant and 72 were able to classify healthy vs OSCC using OPLS-DA modelling. We identified 19 proteins not previously known to be upregulated in OSCC, including prosaposin and alpha-taxilin. KIAA1217 and NDRG1 were upregulated in stage IVa compared with stage I tumours. Altered pathways included calcium signalling, cellular movement, haematological system development and function, and immune cell trafficking, and involved NF-kappa B and MAPK networks. Conclusions: We found a set of proteins reliably separating OSCC tumour from healthy tissue, and multiple proteins differing between stage I and stage IVa OSCC. These potential biomarkers can be studied and validated in larger cohorts.
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(2019)PurposeLate-stage OTSCC is associated with poor overall survival (OS). Non-curative treatment approach aims to improve quality of life and prolong survival of patients deemed incurable. The purpose of this study was to investigate the used non-curative treatment modalities for OTSSC and patient survival.MethodsAll patients diagnosed with OTSCC and treated with non-curative intent at the HUS Helsinki University Hospital (Helsinki, Finland) during the 12-year period of 2005-2016 were included. Survival analysis after the non-curative treatment decision was conducted using the Kaplan-Meier method in this population-based study.ResultsEighty-two patients were identified. A non-curative treatment decision was made at presentation without any previous treatment in 26 patients (7% of all patients diagnosed with OTSCC during the study period). Palliative radiotherapy was administered to 24% of all patients. The average survival time after the non-curative treatment decision was 3.7months (median 2 and range 0-26).ConclusionsDue to the short mean survival time after decision for treatment with non-curative intent, and the notable symptom burden in this patient population, a prompt initiation of all non-curative measures is warranted.
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(Helsingin yliopisto, 2021)Oral tongue squamous cell carcinoma (OTSCC) is one of the most common types of oral cancer. OTSCC usually occurs in males between the ages of 60-70, but recently there has been an increase in OTSCC patients under the age of 40. Commonly known risk factors for tongue cancer are heavy smoking and excessive alcohol consumption. The aim of our study was to find a correlation between gender and prevalence of diagnosis in OTSCC patients, and to observe if OTSCC has become more common in younger patients during recent years. In this study, we studied oral tongue squamous cell carcinoma cases found in the data pool of the pathological department of the University of Helsinki central hospital Q-Pati during the years 1975-2018. We recorded only the gender, date of birth and age at the time of diagnosis. For the statistical analysis, we divided our patients in age-groups of ≤40 years, 40-59 years and ≥60 years. The data was then analyzed using R-studio. From the data, we calculated the incidence rate ratio (IRR) and p-value using the Poisson analysis method. The results show that the rate of diagnosed OTSCC patients has generally increased in all age groups. For female patients the biggest increase was observed in patients ≥60 years old and in male patients 40-59 years old. In both genders we could observe a statistically significant increase in younger patients.
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(2018)Total glossectomy remains a controversial procedure as it often leads to notorious sequalae in swallowing and speaking functions. Disease entities indicating total glossectomy tend to have poor prognosis. We evaluated whether this type of surgery can be concidered justified based on our national series. We reviewed all total and subtotal glossectomies with laryngeal preservation performed in Finland between 2005 and 2014 in terms of overall survival (OS), disease-specific survival (DSS), locoregional control (LRC), and functional outcome as assessed by gastric tube or tracheostomy dependence and ability to produce intelligible speech. Of the 29 eligible patients, 15 had undergone total and 14 subtotal glossectomy with curative intent. In eight patients, total/subtotal glossectomy was performed as salvage procedure after the previous treatment. One-year estimates for OS, DSS, and LRC were 48, 59, and 66%, and corresponding 3-year estimates were 31, 46, and 46%, respectively. The gastrostomy and tracheostomy dependence rates at 1 year after operation were 77 and 15%, respectively. Fifty-nine percent of the patients were assessed to be able to communicate verbally. As in most other published studies, we found unsatisfactory survival figures after subtotal or total glossectomy and most patients remained dependent on gastrostomy tube. This surgery is, however, presumably the best and often only chance for cure in a selective patient population, and according to our opinion, it is indicated as a primary or salvage treatment provided that the reconstruction is planned optimally to guarantee a reasonable quality of life after surgery.
