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  1. Artikel ; Online: Effects of Triheptanoin on Mitochondrial Respiration and Glycolysis in Cultured Fibroblasts from Neutral Lipid Storage Disease Type M (NLSD-M) Patients.

    Noguera, Nelida Inés / Tavian, Daniela / Angelini, Corrado / Cortese, Francesca / Filosto, Massimiliano / Garibaldi, Matteo / Missaglia, Sara / Smigliani, Ariela / Zaza, Alessandra / Pennisi, Elena Maria

    Biomolecules

    2023  Band 13, Heft 3

    Abstract: Neutral lipid storage disease type M (NLSD-M) is an ultra-rare, autosomal recessive disorder that causes severe skeletal and cardiac muscle damage and lipid accumulation in all body tissues. In this hereditary pathology, the defective action of the ... ...

    Abstract Neutral lipid storage disease type M (NLSD-M) is an ultra-rare, autosomal recessive disorder that causes severe skeletal and cardiac muscle damage and lipid accumulation in all body tissues. In this hereditary pathology, the defective action of the adipose triglyceride lipase (ATGL) enzyme induces the enlargement of cytoplasmic lipid droplets and reduction in the detachment of mono- (MG) and diglycerides (DG). Although the pathogenesis of muscle fiber necrosis is unknown, some studies have shown alterations in cellular energy production, probably because MG and DG, the substrates of Krebs cycle, are less available. No tests have been tried with medium-chain fatty acid molecules to evaluate the anaplerotic effect in NLSD cells. In this study, we evaluated the in vitro effect of triheptanoin (Dojolvi
    Mesh-Begriff(e) Humans ; Lipase/metabolism ; Triglycerides ; Glycolysis ; Fibroblasts/metabolism
    Chemische Substanzen triheptanoin (2P6O7CFW5K) ; Lipase (EC 3.1.1.3) ; Triglycerides
    Sprache Englisch
    Erscheinungsdatum 2023-03-01
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2701262-1
    ISSN 2218-273X ; 2218-273X
    ISSN (online) 2218-273X
    ISSN 2218-273X
    DOI 10.3390/biom13030452
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel ; Online: MCL1 regulates AML cells metabolism via direct interaction with HK2. Metabolic signature at onset predicts overall survival in AMLs' patients.

    Catalano, Gianfranco / Zaza, Alessandra / Banella, Cristina / Pelosi, Elvira / Castelli, Germana / de Marinis, Elisabetta / Smigliani, Ariela / Travaglini, Serena / Ottone, Tiziana / Divona, Mariadomenica / Del Principe, Maria Ilaria / Buccisano, Francesco / Maurillo, Luca / Ammatuna, Emanuele / Testa, Ugo / Nervi, Clara / Venditti, Adriano / Voso, Maria Teresa / Noguera, Nelida Ines

    Leukemia

    2023  Band 37, Heft 8, Seite(n) 1600–1610

    Abstract: We characterize the metabolic background in distinct Acute Myeloid Leukemias (AMLs), by comparing the metabolism of primary AML blasts isolated at diagnosis with that of normal hematopoietic maturing progenitors, using the Seahorse XF Agilent. Leukemic ... ...

    Abstract We characterize the metabolic background in distinct Acute Myeloid Leukemias (AMLs), by comparing the metabolism of primary AML blasts isolated at diagnosis with that of normal hematopoietic maturing progenitors, using the Seahorse XF Agilent. Leukemic cells feature lower spare respiratory (SRC) and glycolytic capacities as compared to hematopoietic precursors (i.e. day 7, promyelocytes). According with Proton Leak (PL) values, AML blasts can be grouped in two well defined populations. The AML group with blasts presenting high PL or high basal OXPHOS plus high SRC levels had shorter overall survival time and significantly overexpressed myeloid cell leukemia 1 (MCL1) protein. We demonstrate that MCL1 directly binds to Hexokinase 2 (HK2) on the outer mitochondrial membrane (OMM). Overall, these results suggest that high PL and high SRC plus high basal OXPHOS levels at disease onset, arguably with the concourse of MCL1/HK2 action, are significantly linked with shorter overall survival time in AML. Our data describe a new function for MCL1 protein in AMLs' cells: by forming a complex with HK2, MCL1 co-localizes to VDAC on the OMM, thus inducing glycolysis and OXPHOS, ultimately conferring metabolic plasticity and promoting resistance to therapy.
    Mesh-Begriff(e) Humans ; Hexokinase ; Leukemia, Myeloid, Acute ; Myeloid Cell Leukemia Sequence 1 Protein/metabolism
    Chemische Substanzen Hexokinase (EC 2.7.1.1) ; MCL1 protein, human ; Myeloid Cell Leukemia Sequence 1 Protein ; HK2 protein, human (EC 2.7.1.1)
    Sprache Englisch
    Erscheinungsdatum 2023-06-22
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 807030-1
    ISSN 1476-5551 ; 0887-6924
    ISSN (online) 1476-5551
    ISSN 0887-6924
    DOI 10.1038/s41375-023-01946-5
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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