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BACKGROUND Cutaneous squamous cell carcinoma (cSCC) is the second most widespread cancer in humans and its incidence is rising. Novel therapy with better efficacy is needed for clinical treatment of cSCC. Many studies have shown the importance of DNA repair pathways during the development of cancer. A key nucleotide excision repair (NER) protein, xeroderma pigmentosum group D (XPD), is responsible for the excision of a large variety of bulky DNA lesions. MATERIAL AND METHODS To explore the role of XPD in A431 cells, we overexpressed XPD in A431 cells and performed MTT assay, flow cytometry, and Western blot analysis to examine cell proliferation, cell apoptosis, and genes expression. RESULTS We found that the overexpression of XPD suppressed cell viability, induced cell cycle arrest at G1 phase, and promoted cell apoptosis. Additionally, XPD blocked the expression of c-myc, cdc25A, and cdk2, and improved the levels of HIPK2 and p53. CONCLUSIONS These results provide new evidence to reveal the role of XPD in cSCC A431 cells and suggest that XPD may serve as an anti-oncogene during cSCC development.
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http://dx.doi.org/10.12659/msm.905319 | DOI Listing |
J Skin Cancer
August 2025
Department of Dermatology, University Medical Center Mannheim, Heidelberg University, Mannheim, Baden-Württemberg, Germany.
Corticotropin-releasing hormone (CRH) regulates immunological and cellular processes. Recently, CRH is expressed in skin cancers, where its expression appears to correlate with the degree of malignancy. This study correlates CRH expression in melanoma metastases with patient survival and compares the intensity of CRH expression in melanoma to that in less aggressive skin cancer entities.
View Article and Find Full Text PDFDrug Metab Rev
September 2025
Department of Chemistry, Faculty of Science, Sri Chandrasekharendra Saraswathi Viswa Mahavidyalaya (Deemed to be University) (SCSVMV), Kanchipuram, India.
This comprehensive review explores the therapeutic promise of cyclodextrin-grafted magnetite (FeO) nanocarriers in anticancer applications, focusing on their design, drug delivery mechanisms, biological stability, and therapeutic performance. Systems integrating cyclodextrins (cds) with FeO nanoparticles (FeO-cd-drug) have been developed for delivery of key anticancer agents such as docetaxel, irinotecan, paclitaxel, and doxorubicin across 11 cancer cell types. Results demonstrate up to 60% reduced cancer cell viability when using magnetite nanoparticle (FeO-np)-cds-docetaxel/irinotecan/doxorubicin systems compared to the pristine drug.
View Article and Find Full Text PDFColloids Surf B Biointerfaces
December 2025
Department of Biological and Chemical Physics of Polymers, Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygina ul. 4, Moscow 119334, Russian Federation; Academic Department of Technology and Chemistry of Innovative Materials, Plekhanov University of Economics, Stremyanny
The study explores novel electrospun poly(3-hydroxybutyrate) (PHB) systems for pheophorbide derivative (PheoD) photosensitizers delivery in anticancer photodynamic therapy (PDT). The photophysical properties of PheoD within PHB matrix and the resulting impact on polymer morphology (SEM, AFM), supramolecular structure (XRD, EPR), mechanical behavior, in vitro release, cytotoxicity assay on A431 cells, and antimicrobial properties were investigated. It was shown, that the difference in the PheoD's radical does not affect PHB's semicrystalline nature and amorphous region's structure but causes significant changes in the morphological characteristics of the surface.
View Article and Find Full Text PDFPlants (Basel)
August 2025
Department of Biomedical Sciences, Chung Shan Medical University, Taichung City 402, Taiwan.
Carnivorous plants have garnered attention as sources of pharmacologically active compounds, yet their floral tissues remain largely underexplored. In this study, we investigated the bioactive properties of flower extracts prepared using water, methanol, ethanol, and acetone. Among these, the ethanol extract exhibited the highest total phenolic content (18.
View Article and Find Full Text PDFFront Immunol
August 2025
College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, Hubei, China.
Introduction: B7-H6, a tumor-specific immune checkpoint molecule within the B7 family, represents a promising therapeutic target due to its selective overexpression in malignancies and negligible expression in normal tissues.
Method: Here, we developed bispecific antibodies (BsAbs) targeting B7-H6 to redirect T and NK cells against solid tumors. Through phage display, 15 high-affinity B7-H6 monoclonal antibodies were generated.