Oral cavity cancers have anatomically a big part of the body system and include several types of cancer. The aim of the study is to investigate the relation between XPG and XPD gene variants in the DNA repair system and oral squamous cell cancers. A total of 111 patients with a pathologic diagnosis of oral squamous cell carcinoma and a control group of 148 healthy volunteers who presented to Istanbul Faculty of Medicine, Department of Otolaryngology & Head and Neck Surgery and Dentistry Faculty were included in the study. Isolation of DNA was achieved using an Invitrogen Purelink Genomic DNA Kit. XPD alleles of Lys751Gln (rs13181) and XPG Asp1104His (rs17655) loci from genomic DNA samples were reproduced using polymerase chain reaction. A statistically significant difference in XPD genotype distribution between control and patient groups was determined (P=0.019). XPD Lys+ was significantly more common in the patient group than in the control group, and a two-fold increased risk for disease was determined. XPD Gln/Gln+ was significantly more common in the control group than in the patient group, and a two-fold decrease in risk for disease was determined (P=0.045). In the other region of the study, there was no statistically significant difference in terms of disease development between XPG genotypes. In conclusion, Lys751Gln polymorphism in the XPD gene could play a role in oral squamous cell development. It is important to increase the numbers of subjects in patient groups and healthy controls in studies to increase the possibility of determining XPD's potential as a molecular risk factor.
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Med Mol Morphol
January 2025
Faculty of Medicine, Department of Oral and Maxillofacial Surgery, Fukuoka University, Fukuoka, Japan.
To date, pagetoid spread-the proliferation of pagetoid cells in intraepidermal lesions, as observed in secondary extramammary Paget's disease-has not been reported in squamous epithelium derived from the extension of head and neck carcinomas. Herein, we report a case of pagetoid squamous cell proliferation associated with a primary intraosseous carcinoma (PIOC) arising in the periapical lesion of the maxilla, a finding not reported previously. A 60-year-old man presented with prostate adenocarcinoma and bilateral pubic bone, ilium bone, and sacral bone metastases.
View Article and Find Full Text PDFEur J Dent
January 2025
Department of Fundamental Dental Medical Science, Kulliyyah of Dentistry, International Islamic University Malaysia, Kuantan, Pahang, Malaysia.
Objective: Oral squamous cell carcinoma (OSCC) is the prevailing type of oral cancer, representing poor prognosis and elevated mortality rates. Major risk factors for OSCC include the use of tobacco products, alcohol consumption, betel quid chewing, and genetic mutation. is traditionally consumed by cancer patients to fight against tumor growth.
View Article and Find Full Text PDFEur J Med Chem
December 2024
Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, 200011, China; Digital Diagnosis and Treatment Innovation Center for Cancer, Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China. Electronic address:
Head and neck squamous cell carcinoma (HNSCC) is one of the most common malignant tumors, but clinical drug treatments are limited. The natural product diphyllin was identified as a lead compound suppressing the proliferation of HNSCC cells through phenotypic screening of natural product library. However, further developments of diphyllin as an anti-HNSCC agent were restricted by the weak bioactivity and poor metabolic stability.
View Article and Find Full Text PDFOral Oncol
January 2025
Division of Otolaryngology-Head and Neck Surgery, The George Washington University School of Medicine & Health Sciences, Washington DC, USA. Electronic address:
Background: The feasibility and outcomes of neoadjuvant doublet chemotherapy with cisplatin and docetaxel followed by surgical resection of residual disease (NAC + S) for patients with newly diagnosed, resectable p16 positive (+) oropharyngeal squamous cell carcinoma (OPSCC) has been reported from a single institution. Here, we report pathologic responses, need for adjuvant treatment and recurrence-free survival (RFS) following this treatment from a second large academic institution.
Methods: A retrospective cohort study of patients with p16 + OPSCC receiving NAC + S and risk-adjusted adjuvant treatment between January 2017 and March 2024 was performed.
Oral Oncol
January 2025
Department of Radiation Oncology, Faculty of Medicine, Baskent University, Adana, Turkey.
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