Search results for " Head and neck"

showing 10 items of 69 documents

Knockdown of hnRNPK leads to increased DNA damage after irradiation and reduces survival of tumor cells.

2017

Radiotherapy is an important treatment option in the therapy of multiple tumor entities among them head and neck squamous cell carcinoma (HNSCC). However, the success of radiotherapy is limited by the development of radiation resistances. Heterogeneous nuclear ribonucleoprotein K (hnRNPK) is a cofactor of p53 and represents a potential target for radio sensitization of tumor cells. In this study, we analyzed the impact of hnRNPK on the DNA damage response after gamma irradiation. By yH2AX foci analysis, we found that hnRNPK knockdown increases DNA damage levels in irradiated cells. Tumor cells bearing a p53 mutation showed increased damage levels and delayed repair. Knockdown of hnRNPK appl…

0301 basic medicineCancer ResearchDNA damageCell Survivalmedicine.medical_treatmentmedicine.disease_causeRadiation ToleranceHeterogeneous-Nuclear Ribonucleoprotein KHistones03 medical and health sciences0302 clinical medicineCell Line TumormedicineCarcinomaGene Knockdown TechniquesHumansMutationGene knockdownChemistrySquamous Cell Carcinoma of Head and NeckStem CellsGeneral Medicinemedicine.diseaseHead and neck squamous-cell carcinomaRadiation therapy030104 developmental biologyCell cultureHead and Neck Neoplasms030220 oncology & carcinogenesisGene Knockdown TechniquesCancer researchCarcinoma Squamous CellTumor Suppressor Protein p53DNA DamageCarcinogenesis
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Growth differentiation factor 15 as a radiation-induced marker in oral carcinoma increasing radiation resistance.

2015

Background Growth differentiation factor 15 (GDF15) is involved in tumor pathogenesis of oral squamous cell carcinoma (OSCC). The aim of this study was an investigation of the potential influence of GDF15 on radioresistance of OSCC cells in vitro. Methods Oral squamous cell carcinoma cell lines were irradiated with 0, 2, or 6 Gy, and GDF15 expression in the supernatant per survived cell colony was examined with ELISA. Non-irradiated and OSCC cell lines irradiated with 6 Gy were evaluated for GDF15 expression using immunofluorescent staining. For further investigation of GDF15 effects on radioresistance, a GDF15 knockdown model in a human OSCC cell line was established, and apoptotic activit…

0301 basic medicineCancer ResearchGrowth Differentiation Factor 15CellApoptosisEnzyme-Linked Immunosorbent AssayBiologymedicine.disease_causeReal-Time Polymerase Chain ReactionTransfectionPathology and Forensic Medicine03 medical and health sciences0302 clinical medicineRadioresistanceCell Line TumormedicineCarcinomaBiomarkers TumorHumansRNA Small InterferingMouth neoplasmSquamous Cell Carcinoma of Head and Neckmedicine.diseaseMolecular biologyNeoplasm Proteinsstomatognathic diseases030104 developmental biologymedicine.anatomical_structureOtorhinolaryngologyApoptosisCell cultureTumor progressionHead and Neck Neoplasms030220 oncology & carcinogenesisCaspasesGene Knockdown TechniquesCarcinoma Squamous CellPeriodonticsMouth NeoplasmsOral SurgeryCarcinogenesisJournal of oral pathologymedicine : official publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology
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Cetuximab, fluorouracil and cisplatin with or without docetaxel for patients with recurrent and/or metastatic squamous cell carcinoma of the head and…

2019

Abstract Background The combination of cisplatin, 5-fluorouracil (5-FU) and cetuximab (PFC) is the reference first-line treatment for recurrent/metastatic (R/M) squamous cell carcinoma of the head and neck (SCCHN). We analysed whether treatment intensification by the addition of docetaxel to PFC improved efficacy in R/M SCCHN. Methods A total of 180 patients with R/M SCCHN (1:1) were assigned to receive either cisplatin (40 mg/m2), docetaxel (40 mg/m2) and 5-FU (2000 mg/m2) at days 1 and 8 and cetuximab (400/250 mg/m2) at days 1, 8 and 15 (DPFC) or standard cisplatin (100 mg/m2) at day 1, 5-FU (1000 mg/m2) at days 1–4 and cetuximab (400/250 mg/m2) at days 1, 8 and 15 (PFC). Chemotherapy was…

0301 basic medicineOncologyAdultMaleCancer Researchmedicine.medical_specialtymedicine.medical_treatmentMedizinCetuximabDocetaxelDisease-Free SurvivalDrug Administration Schedule03 medical and health sciences0302 clinical medicineInternal medicineAntineoplastic Combined Chemotherapy ProtocolsmedicineHumansProspective StudiesAgedCisplatinChemotherapyCetuximabbusiness.industrySquamous Cell Carcinoma of Head and NeckHead and neck cancerHazard ratioMiddle AgedInterim analysismedicine.disease030104 developmental biologyOncologyDocetaxelFluorouracil030220 oncology & carcinogenesisFemaleFluorouracilCisplatinbusinessmedicine.drug
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Therapy Testing in a Spheroid-based 3D Cell Culture Model for Head and Neck Squamous Cell Carcinoma

2018

Current treatment options for advanced and recurrent head and neck squamous cell carcinoma (HNSCC) enclose radiation and chemo-radiation approaches with or without surgery. While platinum-based chemotherapy regimens currently represent the gold standard in terms of efficacy and are given in the vast majority of cases, new chemotherapy regimens, namely immunotherapy are emerging. However, the response rates and therapy resistance mechanisms for either chemo regimen are hard to predict and remain insufficiently understood. Broad variations of chemo and radiation resistance mechanisms are known to date. This study describes the development of a standardized, high-throughput in vitro assay to a…

0301 basic medicineOncologyCancer Researchmedicine.medical_specialtyGeneral Chemical Engineeringmedicine.medical_treatmentCell Culture TechniquesGeneral Biochemistry Genetics and Molecular Biology03 medical and health sciences3D cell culture0302 clinical medicineInternal medicinemedicineCarcinomaHumansPrecision MedicineChemotherapyGeneral Immunology and MicrobiologySquamous Cell Carcinoma of Head and Neckbusiness.industryGeneral NeuroscienceHead and neck cancerImmunotherapymedicine.diseaseHead and neck squamous-cell carcinoma3. Good healthRegimen030104 developmental biologyHead and Neck Neoplasms030220 oncology & carcinogenesisCarcinoma Squamous CellPersonalized medicinebusinessJournal of Visualized Experiments
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Prognostic Nutritional Index as an independent prognostic factor in locoregionally advanced squamous cell head and neck cancer.

2018

Background: Locally advanced head and neck squamous cell carcinoma (LAHNSCC) is a heterogeneous disease in which better predictive and prognostic factors are needed. Apart from TNM stage, both systemic inflammation and poor nutritional status have a negative impact on survival. Methods: We retrospectively analysed two independent cohorts of a total of 145 patients with LAHNSCC treated with induction chemotherapy followed by concurrent chemoradiotherapy at two different academic institutions. Full clinical data, including the Prognostic Nutritional Index (PNI), neutrophil to lymphocyte ratio and derived neutrophil to lymphocyte ratio, were analysed in a training cohort of 50 patients. Receiv…

0301 basic medicineOncologyCancer Researchmedicine.medical_specialtyMultivariate analysisDerived neutrophil-to-lymphocyte ratio; Head and neck squamous cell carcinoma; Inflammation-based prognostic scores; Neutrophil-to-lymphocyte ratio; Overall survival; Prognostic factors; Prognostic nutritional indexoverall survivalhead and neck squamous cell carcinomaderived neutrophil-to-lymphocyte ratio03 medical and health sciences0302 clinical medicineneutrophil-to-lymphocyte ratioInternal medicinemedicine1506Stage (cooking)Neutrophil to lymphocyte ratioOriginal ResearchUnivariate analysisbusiness.industryHead and neck cancerInduction chemotherapyprognostic factorsprognostic nutritional indexmedicine.diseaseHead and neck squamous-cell carcinomaClinical trial030104 developmental biologyOncology030220 oncology & carcinogenesisinflammation-based prognostic scoresbusinessESMO open
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Treatment challenges in and outside a network setting: Head and neck cancers.

2019

Head and neck cancer (HNC) is a rare disease that can affect different sites and is characterized by variable incidence and 5-year survival rates across Europe. Multiple factors need to be considered when choosing the most appropriate treatment for HNC patients, such as age, comorbidities, social issues, and especially whether to prefer surgery or radiation-based protocols. Given the complexity of this scenario, the creation of a highly specialized multidisciplinary team is recommended to guarantee the best oncological outcome and prevent or adequately treat any adverse effect. Data from literature suggest that the multidisciplinary team-based approach is beneficial for HNC patients and lea…

0301 basic medicinemedicine.medical_specialtySocio-culturaleSocial issuesMultidisciplinary team03 medical and health sciencesTherapeutic approach0302 clinical medicineRare DiseasesMultidisciplinary approachmedicineHumansAdverse effectIntensive care medicineHead and neck cancerReferral and ConsultationPatient Care TeamEuropean reference networks joint action of rare cancers ; Head and neck cancer ; Multidisciplinary team ; Rare diseasebusiness.industryHead and Neck NeoplasmHead and neck cancerEuropean reference networks joint action of rare cancersGeneral MedicineMultidisciplinary teammedicine.diseaseEurope030104 developmental biologyClinical researchOncologyHead and Neck Neoplasms030220 oncology & carcinogenesisEuropean reference networks joint action of rare cancerSurgerybusinessEuropean reference networks joint action of rare cancers; Head and neck cancer; Multidisciplinary team; Rare disease; Surgery; OncologyRare diseaseDelivery of Health CareRare diseaseHumanEuropean journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology
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An algorithm for oncologic scalp reconstruction.

2010

Background: Modern reconstructive surgery allows for radical resection and reconstruction of any scalp tumor. However, a significant number of patients are still not treated optimally because of incomplete reconstructive guidelines. Methods: The treatment of scalp tumors was documented in 60 patients over a 10-year period. Data regarding tumor type, size, and localization; reconstructive procedure; oncologic, functional, and aesthetic outcome; and complications were collected and analyzed retrospectively. These data were correlated to recurrence and survival rates. The findings extracted from the data were amalgamated to produce the proposed reconstructive algorithm. Results: Five reconstru…

AdultGraft RejectionMalemedicine.medical_specialtyReconstructive surgerySkin NeoplasmsEstheticsSettore MED/19 - Chirurgia PlasticaRisk AssessmentSkin Cancer Head and Neck CancerSurgical FlapsCohort StudiesYoung AdultScalp reconstructionText miningHumansMedicineTumor typeAgedRetrospective StudiesAged 80 and overWound HealingScalpbusiness.industryGraft SurvivalRetrospective cohort studyPattern recognitionSkin TransplantationMiddle AgedPlastic Surgery ProceduresTissue transferSurgeryPlanning processmedicine.anatomical_structureScalpFemaleSurgeryArtificial intelligenceRadical resectionbusinessAlgorithmAlgorithms
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High constant incidence rates of second primary cancers of the head and neck: a pooled analysis of 13 cancer registries

2010

Scanty data are available on the incidence (i.e., the absolute risk) of second cancers of the head and neck (HN) and its pattern with age. We investigated this issue using data from a multicentric study of 13 population-based cancer registries from Europe, Canada, Australia and Singapore for the years 1943-2000. A total of 99,257 patients had a first primary HN cancer (15,985 tongue, 22,378 mouth, 20,758 pharyngeal, and 40,190 laryngeal cancer), contributing to 489,855 person-years of follow-up. 1294 of the patients (1.3%) were diagnosed with second HN cancers (342 tongue, 345 mouth, 418 pharynx, and 189 larynx). Male incidence rates of first HN cancer steeply increased from 0.68/100,000 at…

AdultMaleLarynxOncologyCancer Researchmedicine.medical_specialtyPopulationArticlehead and neckTongueInternal medicineEpidemiologymedicineHumanscancerpooled analysiRegistrieseducationAgedAged 80 and overGynecologyeducation.field_of_studybusiness.industryIncidence (epidemiology)second neoplasmsHead and neck cancerPharynxCancerNeoplasms Second PrimaryMiddle Agedmedicine.diseasesecond primaryAdult ; Aged ; Aged 80 and over ; Female ; Head and Neck Neoplasms/epidemiology* ; Humans ; Incidence ; Male ; Middle Aged ; Neoplasms Second Primary/epidemiology*; Registriesmedicine.anatomical_structureOncologyageHead and Neck Neoplasmscancer registriesincidenceFemalehead and neck cancerHigh constant incidence ratebusiness
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Cytotoxic and genotoxic effects of electronic cigarette liquids on human mucosal tissue cultures of the oropharynx

2016

The popularity of electronic cigarettes (ECs) is rapidly growing and ECs are claimed to be an uncritically regarded alternative to conventional cigarettes. The mucosal tissue of the upper aerodigestive tract (UADT) is the first contact organ for xenobiotics such as liquids of ECs. The aim of this study is to investigate the bimolecular effects of e-liquids on human pharyngeal tissue cultures to evaluate whether e-liquids and their components present a risk factor for head and neck squamous cell carcinoma. Fresh tissue samples of healthy oropharyngeal mucosa were assembled into mucosal tissue cultures. Two fruit-flavored liquids (FLs), one tobacco-flavored liquid (TL) (all containing nicotin…

AdultMalePathologymedicine.medical_specialtyOropharyngeal TissueDNA damageCell SurvivalHealth Toxicology and MutagenesisOropharynxElectronic Nicotine Delivery SystemsToxicologyPathology and Forensic Medicine03 medical and health sciencesTissue cultureYoung Adult0302 clinical medicineFresh TissueRisk FactorsGermanyMedicineHumansCarcinogenMucous Membranebusiness.industryCytotoxinsSquamous Cell Carcinoma of Head and NeckGeneral Medicinemedicine.diseaseHead and neck squamous-cell carcinoma3. Good health030228 respiratory systemHead and Neck NeoplasmsToxicityCancer researchCarcinoma Squamous CellDNA fragmentationFemalebusiness030217 neurology & neurosurgeryDNA DamageMutagens
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Prophylactic chimera anterolateral thigh/vastus lateralis flap: preventing complications in high-risk head and neck reconstruction

2014

Purpose In high-risk head and neck cases treated with tumor resection and associated radical neck dissection, orocutaneous fistulas and wound breakdowns in the neck are relatively frequent and can have serious consequences, such as carotid blowout syndrome (CBS), the need for salvage reoperations, and prolonged recovery time. The authors present the application of a prophylactic chimeric anterolateral thigh (ALT) and vastus lateralis (VL) flap to prevent complications. Materials and Methods A retrospective review was performed of a historical group (96 patients) of patients with head and neck cancer treated with tumor resection, radical neck dissection, and microsurgical reconstruction of t…

AdultMaleReoperationMicrosurgerymedicine.medical_specialtyCutaneous FistulaFistulamedicine.medical_treatmentBlood Loss SurgicalSettore MED/19 - Chirurgia PlasticaSurgical FlapsCohort StudiesPostoperative ComplicationsNeck MusclesSurgical Wound DehiscencemedicineHumansProspective StudiesIntraoperative ComplicationsMuscle SkeletalProspective cohort studyAgedRetrospective StudiesSalvage Therapybusiness.industryHead and neck cancerSoft tissueNeck dissectionChemoradiotherapy AdjuvantMiddle AgedPlastic Surgery Proceduresmedicine.diseaseNeoadjuvant TherapySurgeryLaryngectomyChimera Anterolateral Thigh/Vastus Lateralis Flap Head and neck reconstructionOtorhinolaryngologyHead and Neck NeoplasmsCohortNeck DissectionFemaleSurgeryOral SurgeryCarotid Artery InjuriesSternocleidomastoid musclebusinessOral FistulaFollow-Up Studies
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