0000000000140907

AUTHOR

Gabriella Aquino

showing 3 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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TLR4 expression in ex-Lichenoid lesions—oral squamous cell carcinomas and its surrounding epithelium: the role of tumor inflammatory microenvironment

2022

Toll-like receptors (TLRs) regulate innate and adaptive immune responses. Moreover, TLRs can induce a pro-survival and pro-proliferation response in tumor cells. This study aims to investigate the expression of TLR4 in the epithelium surrounding oral squamous cell carcinomas (OSCC) in relation to its inflammatory microenvironment. This study included 150 human samples: 30 normal oral control (NOC), 38 non-lichenoid epithelium surrounding OSCC (NLE-OSCC), 28 lichenoid epithelium surrounding OSCC (LE-OSCC), 30 OSCC ex-non oral lichenoid lesion (OSCC Ex-NOLL), and 24 OSCC ex-oral lichenoid lesion (OSCC Ex-OLL). TLR4 expression was investigated by immunohistochemistry and the percentage of posi…

InflammationSquamous Cell Carcinoma of Head and NeckNeoplasias bucaisBiochemistryReceptor 4 toll-likeEpitheliumToll-like receptorsToll-Like Receptor 4stomatognathic diseasestoll-like receptorsTumor microenvironmentinflammationMicroambiente tumoralHumanstoll-like receptortumor microenvironmentMouth Neoplasmshead and neck cancerTLR4Carcinoma de células escamosas de cabeça e pescoçohead and neck cancer; tumor microenvironment; inflammation; toll-like receptors; TLR4Head and neck cancerMolecular Biology
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