AI Article Synopsis
- A 39-year-old Japanese man with xeroderma pigmentosum (XP) group D suffered from severe solar sensitivity and developed various skin cancers since childhood.
- His skin showed a decreased minimum erythema dose to UV radiation, and DNA synthesis levels in his fibroblasts were significantly reduced compared to normal.
- Whole-exome sequencing revealed a specific mutation in the ERCC2 gene, and tests confirmed that this mutation is responsible for his XP-D diagnosis, indicating a link between the mutation and his skin sensitivity and lesions.
Article Abstract
A case of xeroderma pigmentosum (XP) group D in a 39-year-old Japanese man is reported. The patient had suffered from moderate to severe solar sensitivity and freckle-like pigmented macules in sun-exposed areas since 6 years of age, and developed skin malignancies such as squamous cell carcinoma, actinic keratosis, Bowen's disease and basal cell carcinoma. The minimal erythema dose for ultraviolet (UV) radiation was decreased with a delayed peak reaction. The level of unscheduled DNA synthesis of fibroblasts from the patient was 70% of normal, while they expressed POLH, a gene product responsible for the XP variant. Whole-exome sequencing indicated that the patient harbored a homozygous mutation of c.1802G>T, p.Arg601Leu in ERCC2. A genetic complementation test was carried out by host cell reactivation assay, which showed that the patient's fibroblasts recovered only when they were transfected with XPD cDNA, confirming the diagnosis of XP-D. Arg601Leu mutation in ERCC2 may be related to mild UV radiation sensitivity and moderate skin lesions.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/1346-8138.15617 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
De novo KCNB1 missense variant causing developmental and epileptic encephalopathy: Two case reports.
Medicine (Baltimore)
January 2025
Epilepsy Center, Children's Hospital Affiliated to Shandong University, Jinan, China.
Rationale: Developmental and epileptic encephalopathy (DEE) defines a group of severe and heterogeneous neurodevelopmental disorders. The voltage-gated potassium channel subfamily 2 voltage-gated potassium channel α subunit encoded by the KCNB1 gene is essential for neuronal excitability. Previous studies have shown that KCNB1 variants can cause DEE.
View Article and Find Full Text PDFComputational Analysis of Missense Mutations: Insight into Protein Structure and Interaction Dynamics.
ACS Chem Neurosci
January 2025
Laboratory for Innovative Drugs (Lab4IND), Computational Drug Design Center (HITMER), Bahçeşehir University, 34734 İstanbul, Türkiye.
is implicated in a range of conditions, including autism spectrum disorder, intellectual disability, seizures, autosomal recessive nonsyndromic intellectual disability, heterotaxy, and ciliary dysfunction. In order to understand the molecular mechanisms underlying these conditions, we focused on the structural and dynamic activity consequences of mutations within this gene. In this study, whole exome sequencing identified the c.
View Article and Find Full Text PDFGenetic variations and clinical significance in young-onset nasopharyngeal cancer: Analysis of EBV interaction with cellular receptor variants and viral glycoproteins.
Heliyon
January 2025
Faculty of Medicine, University of Surabaya, Surabaya, 60292, Indonesia.
Nasopharyngeal cancer (NPC), although rare in young individuals worldwide, is significantly influenced by the Epstein-Barr virus (EBV). Considering EBV's widespread prevalence, understanding its role in NPC's future occurrence, disease progression, clinical symptoms, metastatic tendencies, and prognosis is crucial. In this study, we extensively analyzed two young patients with NPC, who displayed distinct clinical features.
View Article and Find Full Text PDFSevere neonatal hypotonia due to variant affecting function of ZnT5 zinc transporter.
JIMD Rep
January 2025
The Morris Kahn Laboratory of Human Genetics, Faculty of Health Sciences Ben Gurion University Beer-Sheva Israel.
The tightly-regulated spatial and temporal distribution of zinc ion concentrations within cellular compartments is controlled by two groups of Zn transporters: the 14-member ZIP/SLC39 family, facilitating Zn influx into the cytoplasm from the extracellular space or intracellular organelles; and the 10-member ZnT/SLC30 family, mobilizing Zn in the opposite direction. Genetic aberrations in most zinc transporters cause human syndromes. Notably, previous studies demonstrated osteopenia and male-specific cardiac death in mice lacking the ZnT5/ zinc transporter, and suggested association of two homozygous frameshift variants with perinatal mortality in humans, due to hydrops fetalis and hypertrophic cardiomyopathy.
View Article and Find Full Text PDFReturn of Clinically Actionable Pharmacogenetic Results From Molecular Tumor Board DNA Sequencing Data: Workflow and Estimated Costs.
Clin Pharmacol Ther
January 2025
Division of Clinical Pharmacology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA.
Pharmacogenetic testing can prevent severe toxicities from several oncology drug therapies; it also has the potential to improve the outcomes from supportive care drugs. Paired tumor and germline sequencing is increasingly common in oncology practice; these include sequencing of pharmacogenes, but the germline pharmacogenetic variants are rarely included in the clinical reports, despite many being clinically actionable. We established an informatics workflow to evaluate the clinical sequencing results for pharmacogenetic variants.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!