Genetic linkage analysis of head and neck cancer in a Spanish family
ORAL DISEASES(2024)
Abstract
Objectives: To describe the genetic variants that may be associated with the development of head and neck cancer (HNC) and functionally validating the molecular implications. Materials and Methods: A prospective observational study was carried out on a family of 3 generations in which 3 members had developed HNC. Peripheral blood sample was taken in a routine procedure for exome sequencing in one relative and genotyping in the remaining twelve relatives. For the functional analysis all-trans retinoic acid (atRA) was extracted from saliva and serum and measured using ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). The presence of HPV-DNA. Results: None of the patients smoked or consumed alcohol. The presence of HPV DNA was not detected in any of the biopsied samples. A total amount of 6 members out of 13 (46.15%) carried out the same mutation of CYP26B1 (2p13.2; G>T). The mean plasma concentration of +/- 1.5992 pg/mL for the controls (p = 0.042). Conclusion: Lower levels of atRA were confirmed in the study family, which may open the way to the possible relationship between the polymorphism CYP26B1 (2p13.2; G>T) and HNC.
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Key words
all-trans retinoic acid,genetic linkage,genotyping techniques,head and neck cancer,oral squamous cell carcinoma,whole exome sequencing
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