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Molecular routes to metastatic dissemination are critical determinants of aggressive cancers. Through in vivo CRISPR-Cas9 genome editing, we generated somatic mosaic genetically engineered models that faithfully recapitulate metastatic renal tumors. Disruption of 9p21 locus is an evolutionary driver to systemic disease through the rapid acquisition of complex karyotypes in cancer cells. Cross-species analysis revealed that recurrent patterns of copy number variations, including 21q loss and dysregulation of the interferon pathway, are major drivers of metastatic potential. In vitro and in vivo genomic engineering, leveraging loss-of-function studies, along with a model of partial trisomy of chromosome 21q, demonstrated a dosage-dependent effect of the interferon receptor genes cluster as an adaptive mechanism to deleterious chromosomal instability in metastatic progression. This work provides critical knowledge on drivers of renal cell carcinoma progression and defines the primary role of interferon signaling in constraining the propagation of aneuploid clones in cancer evolution.
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http://dx.doi.org/10.1038/s43018-023-00584-1 | DOI Listing |
Hepatology
September 2025
Department of Pathology, Department of Molecular Biology, Moores Cancer Center, University of California San Diego, La Jolla, CA 92037, USA.
Background And Aims: So far, there is no effective mechanism-based therapeutic agent tailored for liver tumors. Immune checkpoint inhibitors (ICIs) have demonstrated limited efficacy in liver cancer, often associated with severe adverse effects. Although poly-inosinic:cytidylic acid (polyIC) has shown an adjuvant effect when combined with anti-PD-L1 antibody (αPD-L1) in treating liver tumors in animal models, its systemic toxicity limits its clinical utility.
View Article and Find Full Text PDFInt J Nanomedicine
September 2025
Department of Infectious Diseases, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People's Republic of China.
The STING pathway has emerged as a therapeutic target in tumor immunotherapy due to its ability to induce interferon responses, enhance antigen presentation and activate T cells. Despite its therapeutic potential, STING pathway-based tumor immunotherapy has been limited by challenges in poor cellular delivery, rapid degradation of STING agonists, and potential systemic toxicity. Recently, advancements in nanotechnology have tried to overcome these limitations by providing platforms for more accurate and efficient targeted delivery of agonists, more moderate sustained STING pathway activation, and more efficient immune presentation and anti-tumor immune response.
View Article and Find Full Text PDFFront Cell Infect Microbiol
September 2025
Universidad Autónoma de Nuevo León, Servicio y Departamento de Inmunología, Facultad de Medicina, Monterrey, NL, Mexico.
Natural killer (NK) cells are innate lymphocytes with cytotoxic activity against tumors and viruses. The pandemic of the coronavirus disease 2019 (COVID-19) has increased the investigation of their role in disease severity. However, their functional status and modulators remain controversial.
View Article and Find Full Text PDFCell Physiol Biochem
September 2025
Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Biochemistry, 10117 Berlin, Germany.
Background/aims: The ubiquitin-like protein ISG15 and its covalent conjugation to substrates (ISGylation) represent a critical interferon (IFN)-induced antiviral mechanism. USP18 is an ISG15-specific isopeptidase and a key negative regulator of type I IFN signaling. While inactivation of USP18's catalytic activity enhances ISGylation and promotes viral resistance, its role in modulating inflammation and cardiac function during CVB3-induced myocarditis remains unclear.
View Article and Find Full Text PDFNat Immunol
September 2025
Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
CD4 T follicular helper (T) cells support tailored B cell responses against multiple classes of pathogens. To reveal how diverse T phenotypes are established, we profiled mouse T cells in response to viral, helminth and bacterial infection. We identified a core T signature that is distinct from CD4 T follicular regulatory and effector cells and identified pathogen-specific transcriptional modules that shape T function.
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