0000000000140909

AUTHOR

Pantaleo Bufo

showing 5 related works from this author

TLR4 down-regulation identifies high risk HPV infection and integration in head and neck squamous cell carcinomas

2015

TLRs are main actors of the innate immune response against HPV. There are very few studies on the role of TLRs mediated HPV clearance in Head and Neck oncology. Our aim was to evaluate whether TLR4 expression identifies HPV infection and/or HR-HPV integration status in oral and oropharyngeal cancers. By immunohistochemistry we assessed TLR4 levels in OSCC/OPSCC. To detect viral integration or episomic status In situ hybridization for HPV-DNA and Pyro-sequencing techniques have been performed. The relationship between TLR4 expression with HPV infection status has been investigated. ISH HPV positive samples have reported lower levels of TLR4 intensity than negative samples (p = .002). There w…

Oncology0301 basic medicineAdultMalemedicine.medical_specialtyVirus IntegrationCellDown-RegulationIn situ hybridizationBiologyAlphapapillomavirusGeneral Biochemistry Genetics and Molecular Biology03 medical and health sciencesRetrospective StudieInternal medicineCarcinomamedicineHumansVirus IntegrationIn Situ HybridizationRetrospective StudiesAgedAged 80 and overInnate immune systemGeneral Immunology and MicrobiologyHead and Neck NeoplasmAlphapapillomaviruExpression indexHPV infectionvirus diseasesMiddle Agedmedicine.diseasefemale genital diseases and pregnancy complicationsToll-Like Receptor 4medicine.anatomical_structure030104 developmental biologyHead and Neck NeoplasmsImmunologyDNA ViralCarcinoma Squamous CellImmunohistochemistryFemaleHuman
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Evaluation of a combined triple method to detect causative HPV in oral and oropharyngeal squamous cell carcinomas: p16 Immunohistochemistry, Consensu…

2012

Abstract Background Recent emerging evidences identify Human Papillomavirus (HPV) related Head and Neck squamous cell carcinomas (HN-SCCs) as a separate subgroup among Head and Neck Cancers with different epidemiology, histopathological characteristics, therapeutic response to chemo-radiation treatment and clinical outcome. However, there is not a worldwide consensus on the methods to be used in clinical practice. The endpoint of this study was to demonstrate the reliability of a triple method which combines evaluation of: 1. p16 protein expression by immunohistochemistry (p16-IHC); 2. HPV-DNA genotyping by consensus HPV-DNA PCR methods (Consensus PCR); and 3 viral integration into the host…

OncologyHuman papillomavirusHPVCancer Researchmedicine.medical_specialtyPathologyMethylation-Specific PCREpidemiologySettore MED/50 - Scienze Tecniche Mediche ApplicateBisulfite sequencingConsensus PCRIn situ hybridizationSettore MED/08 - Anatomia Patologicalcsh:RC254-282lcsh:Infectious and parasitic diseasesHPV-DNA; in situ hybridationSettore MED/28 - Malattie OdontostomatologicheInternal medicinemedicineDNA consensus PCRlcsh:RC109-216p16-IHCin situ hybridationGenotypingHN-SCCOPSCCbusiness.industryHead and neck cancerEpigeneticHPV-DNAHead and neck squamous cell carcinomalcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogensmedicine.diseaseImmunohistochemistryHead and neck squamous-cell carcinomastomatognathic diseasesInfectious DiseasesReal-time polymerase chain reactionOncologyImmunohistochemistryOSCCbusinessResearch ArticleIHCInfectious Agents and Cancer
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DOUBLE DEMONSTRATION OF ONCOGENIC HIGH RISK HUMAN PAPILLOMA VIRUS DNA AND HPV-E7 PROTEIN IN ORAL CANCERS

2011

Oncogenic HPVs are necessarily involved in cervical cancer but their role in oral carcinogenesis is debated. To detect HPV in oral cancer, 38 cases of formalin fixed-paraffin embedded OSCC were studied by both DNA genotyping (MY09/11 L1 consensus primers in combination with GP5-GP6 primer pair followed by sequencing) and immunohistochemistry (monoclonal Abs against capsid protein and HPV-E7 protein, K1H8 DAKO and clone 8C9 INVITROGEN, respectively). HPV-16 tonsil cancer was used as positive control. The overall prevalence of HPV infection in OSCCs was 10.5%. Amplification of DNA samples showed single HPV DNA infection in 3 cases (HPV16; HPV53; HPV70) and double infection in one case of chee…

AdultMaleHPVPapillomavirus E7 ProteinsImmunologyBiologymedicine.disease_causeVirusoral carcinogenesisSettore MED/28 - Malattie Odontostomatologicheoncogenic proteinsmedicineImmunology and AllergyHumansGenotypingPapillomaviridaeAgedNeoplasm StagingPharmacologyCervical cancerAged 80 and overE-7Papillomavirus InfectionsHPV infectionCancervirus diseasesMiddle Agedmedicine.diseaseHPV oral cancerVirologyfemale genital diseases and pregnancy complicationsstomatognathic diseasesCancer cellDNA ViralCarcinoma Squamous CellE-7; HPV; oncogenic proteins; oral carcinogenesis; OSCC;FemaleMouth NeoplasmsOSCCPrimer (molecular biology)Carcinogenesis
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Heterogeneity of KRAS, NRAS, BRAF and PIK3CA mutations in metastatic colorectal cancer and potential effects on therapy in the CAPRI GOIM trial

2015

Background: Evidence suggests that metastatic colorectal carcinoma (mCRC) has a high level of intratumor heterogeneity. We carried out a quantitative assessment of tumor heterogeneity for KRAS, NRAS, BRAF and PIK3CA mutations, in order to assess potential clinical implications. Patients and methods: Tumor samples (n = 182) from the CAPRI-GOIM trial of first-line cetuximab + FOLFIRI in KRAS exon-2 wild-type mCRC patients were assessed by next-generation sequencing that allows quantitative assessment of mutant genes. Mutant allelic frequency was normalized for the neoplastic cell content and, assuming that somatic mutations usually affect one allele, the Heterogeneity Score (HS) was calculate…

OncologyNeuroblastoma RAS viral oncogene homologOrganoplatinum CompoundsColorectal cancerSettore MED/06 - Oncologia MedicaLeucovorinCetuximabCetuximab; Colorectal cancer; Mutations; Next-generation sequencing; Tumor heterogeneity; Antineoplastic Combined Chemotherapy Protocols; Camptothecin; Carcinoma; Cetuximab; Class I Phosphatidylinositol 3-Kinases; Colorectal Neoplasms; Drug Resistance Neoplasm; Fluorouracil; GTP Phosphohydrolases; Gene Frequency; High-Throughput Nucleotide Sequencing; Humans; Leucovorin; Membrane Proteins; Mutation; Organoplatinum Compounds; Phosphatidylinositol 3-Kinases; Proto-Oncogene Proteins B-raf; Proto-Oncogene Proteins p21(ras); Treatment Outcome; Hematology; OncologyColorectal Neoplasmmedicine.disease_causeGTP PhosphohydrolasesGTP PhosphohydrolasePhosphatidylinositol 3-KinasesGene FrequencyAntineoplastic Combined Chemotherapy ProtocolsMembrane ProteinClass I Phosphatidylinositol 3-KinasecolorectalCetuximabHigh-Throughput Nucleotide SequencingHematologyTreatment OutcomeOncologyFOLFIRIKRASFluorouracilColorectal Neoplasmsmedicine.drugHumanProto-Oncogene Proteins B-rafmedicine.medical_specialtyTumor heterogeneityClass I Phosphatidylinositol 3-KinasesProto-Oncogene Proteins p21(ras)Internal medicinemedicinecancerHumansneoplasmsAllele frequencyAntineoplastic Combined Chemotherapy ProtocolSettore MED/08 - ANATOMIA PATOLOGICAbusiness.industryCarcinomaOrganoplatinum CompoundMembrane ProteinsCancermedicine.diseaseColorectal cancerdigestive system diseasesDrug Resistance NeoplasmMutationCancer researchNext-generation sequencingNeoplastic cellCamptothecinPhosphatidylinositol 3-Kinasebusiness
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Lack of association between celiac disease and dental enamel hypoplasia in a case-control study from an Italian central region

2007

Abstract Background A close correlation between celiac disease (CD) and oral lesions has been reported. The aim of this case-control study was to assess prevalence of enamel hypoplasia, recurrent aphthous stomatitis (RAS), dermatitis herpetiformis and atrophic glossitis in an Italian cohort of patients with CD. Methods Fifty patients with CD and fifty healthy subjects (age range: 3–25 years), matched for age, gender and geographical area, were evaluated by a single trained examiner. Diagnosis of oral diseases was based on typical medical history and clinical features. Histopathological analysis was performed when needed. Adequate univariate statistical analysis was performed. Results Enamel…

Dental Enamel Hypoplasiamedicine.medical_specialtyPathologylcsh:Specialties of internal medicineCase StudyGlossitisDentistry(all)business.industryClinical NeurologyCase-control studyEnamel hypoplasiamedicine.diseaseRecurrent aphthous stomatitisDermatologyOtorhinolaryngologylcsh:RC581-951Dermatitis herpetiformisceliac disease dental enamel hypoplasiaCohortmedicineOral and maxillofacial surgeryNeurology (clinical)businessGeneral DentistryHead & Face Medicine
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