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V-ATPase in glioma stem cells: a novel metabolic vulnerability.
J Exp Clin Cancer Res
January 2025
Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy.
Background: Glioblastoma (GBM) is a lethal brain tumor characterized by the glioma stem cell (GSC) niche. The V-ATPase proton pump has been described as a crucial factor in sustaining GSC viability and tumorigenicity. Here we studied how patients-derived GSCs rely on V-ATPase activity to sustain mitochondrial bioenergetics and cell growth.
View Article and Find Full Text PDFNME7 maintains primary cilium assembly, ciliary microtubule stability, and Hedgehog signaling.
Life Sci Alliance
April 2025
https://ror.org/0040axw97 Yunnan Key Laboratory of Cell Metabolism and Diseases, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming, China
NME7 (nucleoside diphosphate kinase 7), a lesser studied member of the non-metastatic expressed (NME) family, has been reported as a potential subunit of the γ-tubulin ring complex (γTuRC). However, its role in the cilium assembly and function remains unclear. Our research demonstrated that NME7 is located at the centrosome, including at the spindle poles during metaphase and at the basal bodies during cilium assembly.
View Article and Find Full Text PDFPellino 3 E3 ligase promotes starvation-induced autophagy to prevent hepatic steatosis.
Sci Adv
January 2025
Cellular Homeostasis and Recycling, Danish Cancer Institute, DK-2100 Copenhagen, Denmark.
Nutrient deprivation is a major trigger of autophagy, a conserved quality control and recycling process essential for cellular and tissue homeostasis. In a high-content image-based screen of the human ubiquitome, we here identify the E3 ligase Pellino 3 (PELI3) as a crucial regulator of starvation-induced autophagy. Mechanistically, PELI3 localizes to autophagic membranes, where it interacts with the ATG8 proteins through an LC3-interacting region (LIR).
View Article and Find Full Text PDFALBA3 maintains male fertility under heat stress in plants.
J Integr Plant Biol
January 2025
School of Advanced Agricultural Sciences, Peking University, Beijing, 100871, China.
Heat stress (HS) at the reproductive stage detrimentally affects crop yields and seed quality. However, the molecular mechanisms that protect reproductive processes in plants under HS remain largely unknown. Here, we report that Acetylation Lowers Binding Affinity 3 (ALBA3) is crucial for safeguarding male fertility against HS in Arabidopsis.
View Article and Find Full Text PDFLinifanib alone and in combination with metronomic chemotherapy is active on cutaneous T-cell lymphoma cells by targeting the AKT/mTOR signaling pathway.
Invest New Drugs
January 2025
Dipartimento Di Ricerca Traslazionale E Delle Nuove Tecnologie in Medicina E Chirurgia, Università Di Pisa, Via Savi 10, 56126, Pisa, Italy.
Cutaneous T-cell lymphomas (CTCLs) are a rare and heterogeneous subset of skin-localized, non-Hodgkin lymphomas. Our aim was to evaluate the in vitro antitumor activity of the multi-kinase inhibitor linifanib, either alone or in combination with metronomic vinorelbine (mVNR) or etoposide (mETO), on CTCL cells. In vitro proliferation assay and Luminex analysis showed that long-term, daily exposure of linifanib significantly inhibited the proliferation of the human CTCL cell line HH, in a concentration-dependent manner (IC = 48.
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