Epigenetic dysregulation and disruption of gene enhancer networks are both pervasive in human cancers, and yet, their roles in keratinocyte cancers are poorly understood. Utilizing patient samples, Yao et al. (2020) provide an initial framework for understanding the underlying mechanisms by integrating enhancer and transcriptional alterations that occur during the progression of basal cell and squamous cell carcinomas.
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http://dx.doi.org/10.1016/j.jid.2020.11.008 | DOI Listing |
PLoS Pathog
January 2025
Department of Cancer and Genomic Sciences, College of Medicine and Health, University of Birmingham, Birmingham, United Kingdom.
Upon infection, human papillomavirus (HPV) manipulates host cell gene expression to create an environment that is supportive of a productive and persistent infection. The virus-induced changes to the host cell's transcriptome are thought to contribute to carcinogenesis. Here, we show by RNA-sequencing that oncogenic HPV18 episome replication in primary human foreskin keratinocytes (HFKs) drives host transcriptional changes that are consistent between multiple HFK donors.
View Article and Find Full Text PDFJ Invest Dermatol
January 2025
Department of Health Services Research University of Texas MD Anderson Cancer Center, Houston, TX, USA; Department of Dermatology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Biomedicines
January 2025
Department of Periodontal Diseases and Oral Mucosa Diseases, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland.
: Conventional treatments for cancers of the head and neck region are often associated with high recurrence rates and impaired quality of life. Photodynamic therapy (PDT) has emerged as a promising alternative, leveraging photosensitizers such as hypericin to selectively target tumour cells with minimal damage to surrounding healthy tissues. : We aimed to evaluate the efficacy and underlying mechanisms of hypericin-mediated PDT (HY-PDT) in treating head and neck cancers.
View Article and Find Full Text PDFGeorgian Med News
November 2024
4Department of Pathology, University of Virginia, Charlottesville, USA.
The toxicokinetics of nitrosamines remain a mystery to this day, though it appears that the role of nitrosamines in potentiating the generation of mutations required for the onset of skin cancer continues to be a significant concern. Nitrosamines are mutagens, genotoxic substances, and mediators of phototoxicity/carcinogenicity, whose long-term daily usage, in the context of polypharmacy, can result in the parallel appearance of heterogeneous forms of skin cancer: keratinocytic and melanocytic. But a number of clinical observations suggest that it is the nitrosamines that potentiate the multiple occurrences of skin cancer over the years, or recurrences of skin cancer localized in areas exposed to solar radiation.
View Article and Find Full Text PDFClin Pract
January 2025
Faculty of Medicine and Pharmacy, Dunarea de Jos University of Galati, 800010 Galati, Romania.
Cutaneous squamous scell carcinoma (cSCC) is a frequent non-melanoma skin cancer that originates from keratinocytes with increased prevalence. cSCC can be either in situ, as in Bowen's disease, or extended. Advanced age, accumulated sun exposure, light pigmentation, and prior skin cancer diagnosis are all significant risk factors for cSCC.
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