The review summarizes the results from a series of studies focusing on the role that the nucleolus plays in maturation of the IGH locus and the choice of its partner genes in leukemia-associated translocations. The role of nuclear compartmentalization and nuclear localization of translocated oncogenes in ectopic activation of their transcription is discussed.
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http://dx.doi.org/10.7868/S0026898418020040 | DOI Listing |
Genes (Basel)
December 2024
Faculty of Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, Kobe 650-0047, Japan.
Background/objectives: Actin plays a crucial role not only in the cytoplasm, but also in the nucleus, influencing various cellular behaviors, including cell migration and gene expression. Recent studies reveal that nuclear actin dynamics is altered by cellular stresses, such as DNA damage; however, the effect of heat shock on nuclear actin dynamics, particularly in the nucleolus, remains unclear. This study aims to elucidate the contribution of nucleolar actin to cellular responses under heat shock conditions.
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November 2024
Center for Pathobiochemistry and Genetics, Institute of Medical Genetics, Medical University of Vienna, 1090 Vienna, Austria.
Background/objectives: Nucleolin is a major component of the nucleolus and is involved in various aspects of ribosome biogenesis. However, it is also implicated in non-nucleolar functions such as cell cycle regulation and proliferation, linking it to various pathologic processes. The aim of this study was to use differential gene expression analysis and Weighted Gene Co-expression Network analysis (WGCNA) to identify nucleolin-related regulatory pathways and possible key genes as novel therapeutic targets for cancer, viral infections and other diseases.
View Article and Find Full Text PDFAntioxidants (Basel)
November 2024
Diagnostic Laboratory, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 546 27 Thessaloniki, Greece.
Mast cell tumors (MCTs) are common skin neoplasms in dogs. Prognostic indicators include histologic grade, clinical stage, high Ki-67 index, elevated argyrophilic nucleolus organizer regions (AgNOR) index, mutations, and recurrence after surgery. Blood serum redox status has been shown to correlate with prognostic factors in canine lymphoma and mammary tumors.
View Article and Find Full Text PDFBiochemistry
January 2025
Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States.
Dimethyladenosine transferase 1 (DIMT1) is an RNA -dimethyladenosine (mA) methyltransferase. DIMT1's role in pre-rRNA processing and ribosome biogenesis is critical for cell proliferation. Here, we investigated the minimal number of residues in a positively charged cleft on DIMT1 required for cell proliferation.
View Article and Find Full Text PDFHeliyon
December 2024
Unidad de Investigación, Hospital Universitario Nuestra Señora de Candelaria, Instituto de Investigación Sanitaria de Canarias (IISC), 38010, Santa Cruz de Tenerife, Spain.
The naphthoquinone moiety is commonly found in numerous natural cytotoxic compounds with diverse and pleiotropic modes of action (MOAs). The moiety can exist as a standalone pharmacophore or combined with other pharmacophores to enrich their MOAs. Here, we report that the synthetic fusion of naphthoquinones and oxazepines provides potent cytotoxic compounds with diverse MOAs.
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