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Ran-binding protein in the microtubule-organizing center (RanBPM) is an evolutionarily conserved, nucleocytoplasmic scaffolding protein involved in various cellular processes and several signal transduction pathways. RanBPM has a crucial role in mediating disease pathology by interacting with diverse proteins to regulate their functions. Previously, we compiled diverse cellular functions of RanBPM. Since then the functions of RanBPM have increased exponentially. In this article, we have updated the functions of RanBPM through its manifold interactions that have been investigated to date, according to their roles in protein stability, transcriptional activity, cellular development, neurobiology, and the cell cycle. Our review provides a complete guide on RanBPM interactors, the physiological role of RanBPM in cellular functions, and potential applications in disease therapeutics.
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J Exp Clin Cancer Res
August 2025
Department of Cancer Biology and Genetics, College of Medicine, Arthur G. James Comprehensive Cancer Center (OSUCCC), The Ohio State Universityand, Columbus, OH, USA.
Background: RANBP9 and RANBP10, also called Scorpins, are essential components of the C-terminal to LisH (CTLH) complex, an evolutionarily conserved poorly investigated multisubunit E3 ligase. Their role in non-small cell lung cancer (NSCLC) is unknown.
Methods: In this study, first we used stable loss-of function and overexpression inducible cell lines to investigate the ability of either RANBP9 or RANBP10 to form their own functional CTLH complex.
Cell Death Dis
August 2025
Department of General Surgery, Qilu Hospital of Shandong University, Jinan, China.
Lenvatinib resistance significantly limits its clinical efficacy and application in the treatment of hepatocellular carcinoma (HCC). Mitofusin 2 (MFN2) is an important GTPase involved in mitochondrial fusion, energy balance and mitophagy. The role and regulatory mechanism of MFN2 in HCC progression and lenvatinib resistance remain unclear.
View Article and Find Full Text PDFCell Death Discov
April 2025
Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University Arthur G. James Comprehensive Cancer Center, Columbus, OH, 43210, USA.
The biological functions of the scaffold protein Ran Binding Protein 9 (RanBP9) remain elusive in macrophages or any other cell type where this protein is expressed together with its CTLH (C-terminal to LisH) complex partners. We have engineered a new mouse model, named RanBP9-TurnX, where RanBP9 fused to three copies of the HA tag (RanBP9-3xHA) can be turned into RanBP9-V5 tagged upon Cre-mediated recombination. We created this model to enable stringent biochemical studies at cell type specific level throughout the entire organism.
View Article and Find Full Text PDFThe biological functions of the scaffold protein Ran Binding Protein 9 (RanBP9) remain elusive in macrophages or any other cell type where this protein is expressed together with its CTLH (C-terminal to LisH) complex partners. We have engineered a new mouse model, named RanBP9-TurnX, where RanBP9 fused to three copies of the HA tag (RanBP9-3xHA) can be turned into RanBP9-V5 tagged upon Cre-mediated recombination. We created this model to enable stringent biochemical studies at cell type specific level throughout the entire organism.
View Article and Find Full Text PDFMol Neurobiol
October 2024
Department of Neurology, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin, 300052, China.
Iron overload is associated with brain edema in the context of intracerebral hemorrhage (ICH). Here, we investigated the role of histone deacetylase 1 (HDAC1) in mediating oxidative damage induced by iron overload after ICH. Utilizing ICH mouse models and FeCl-induced HT-22 cell models, we assessed HDAC1 expression and its impact on iron overload and oxidative damage.
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