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Mengr A, Strnadová V, Strnad Š, Vrkoslav V, Pelantová H, Kuzma M, Comptdaer T, Železná B, Kuneš J, Galas MC, Pačesová A, Maletínská L. Feeding High-Fat Diet Accelerates Development of Peripheral and Central Insulin Resistance and Inflammation and Worsens AD-like Pathology in APP/PS1 Mice. Nutrients 2023; 15:3690. [PMID: 37686722 PMCID: PMC10490051 DOI: 10.3390/nu15173690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/15/2023] [Accepted: 08/16/2023] [Indexed: 09/10/2023] Open
Abstract
Alzheimer's disease (AD) is a progressive brain disorder characterized by extracellular amyloid-β (Aβ) plaques, intracellular neurofibrillary tangles formed by hyperphosphorylated Tau protein and neuroinflammation. Previous research has shown that obesity and type 2 diabetes mellitus, underlined by insulin resistance (IR), are risk factors for neurodegenerative disorders. In this study, obesity-induced peripheral and central IR and inflammation were studied in relation to AD-like pathology in the brains and periphery of APP/PS1 mice, a model of Aβ pathology, fed a high-fat diet (HFD). APP/PS1 mice and their wild-type controls fed either a standard diet or HFD were characterized at the ages of 3, 6 and 10 months by metabolic parameters related to obesity via mass spectroscopy, nuclear magnetic resonance, immunoblotting and immunohistochemistry to quantify how obesity affected AD pathology. The HFD induced substantial peripheral IR leading to central IR. APP/PS1-fed HFD mice had more pronounced IR, glucose intolerance and liver steatosis than their WT controls. The HFD worsened Aβ pathology in the hippocampi of APP/PS1 mice and significantly supported both peripheral and central inflammation. This study reveals a deleterious effect of obesity-related mild peripheral inflammation and prediabetes on the development of Aβ and Tau pathology and neuroinflammation in APP/PS1 mice.
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Affiliation(s)
- Anna Mengr
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, Prague 6, 166 10 Prague, Czech Republic; (A.M.); (V.S.); (Š.S.); (V.V.); (B.Ž.); (J.K.)
| | - Veronika Strnadová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, Prague 6, 166 10 Prague, Czech Republic; (A.M.); (V.S.); (Š.S.); (V.V.); (B.Ž.); (J.K.)
| | - Štěpán Strnad
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, Prague 6, 166 10 Prague, Czech Republic; (A.M.); (V.S.); (Š.S.); (V.V.); (B.Ž.); (J.K.)
| | - Vladimír Vrkoslav
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, Prague 6, 166 10 Prague, Czech Republic; (A.M.); (V.S.); (Š.S.); (V.V.); (B.Ž.); (J.K.)
| | - Helena Pelantová
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, Prague 4, 142 20 Prague, Czech Republic; (H.P.); (M.K.)
| | - Marek Kuzma
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, Prague 4, 142 20 Prague, Czech Republic; (H.P.); (M.K.)
| | - Thomas Comptdaer
- University of Lille, Inserm, CHU Lille, CNRS, LilNCog-Lille Neuroscience & Cognition, F-59000 Lille, France; (T.C.); (M.-C.G.)
| | - Blanka Železná
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, Prague 6, 166 10 Prague, Czech Republic; (A.M.); (V.S.); (Š.S.); (V.V.); (B.Ž.); (J.K.)
| | - Jaroslav Kuneš
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, Prague 6, 166 10 Prague, Czech Republic; (A.M.); (V.S.); (Š.S.); (V.V.); (B.Ž.); (J.K.)
- Institute of Physiology of the Czech Academy of Sciences, Vídeňská 1083, Prague 4, 142 20 Prague, Czech Republic
| | - Marie-Christine Galas
- University of Lille, Inserm, CHU Lille, CNRS, LilNCog-Lille Neuroscience & Cognition, F-59000 Lille, France; (T.C.); (M.-C.G.)
| | - Andrea Pačesová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, Prague 6, 166 10 Prague, Czech Republic; (A.M.); (V.S.); (Š.S.); (V.V.); (B.Ž.); (J.K.)
| | - Lenka Maletínská
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, Prague 6, 166 10 Prague, Czech Republic; (A.M.); (V.S.); (Š.S.); (V.V.); (B.Ž.); (J.K.)
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Gonzalez-Morena JM, Escudeiro-Lopes S, Ferreira-Mendes JM, Jakoube P, Cutano V, Vinaixa-Forner J, Kralova Viziova P, Hartmanova A, Sedlacek R, Machado S, Malcekova B, Keckesova Z. LACTB induces cancer cell death through the activation of the intrinsic caspase-independent pathway in breast cancer. Apoptosis 2023; 28:186-198. [PMID: 36282364 PMCID: PMC9950249 DOI: 10.1007/s10495-022-01775-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/17/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND LACTB was recently identified as a mitochondrial tumour suppressor that negatively affects cancer cell proliferation by inducing cell death and/or differentiation, depending on the cell type and tissue. However, the detailed mechanism underlying the LACTB-induced cancer cell death is largely unknown. METHODS We used cell-based, either in 2D or 3D conditions, and in vivo experiments to understand the LACTB mechanisms. In this regard, protein array followed by an enrichment analysis, cell proliferation assays using different compounds, western blot analysis, flow cytometry and immunofluorescence were performed. Differences between quantitative variables following normal distribution were valuated using Student t test for paired or no-paired samples according to the experiment. For in vivo experiments differences in tumour growth were analyzed by 2-way ANOVA. RESULTS We show, that LACTB expression leads to cell cycle arrest in G1 phase and increase of DNA oxidation that leads to activation of intrinsic caspase-independent cell death pathway. This is achieved by an increase of mitochondrial reactive oxygen species since early time points of LACTB induction. CONCLUSION Our work provides a deeper mechanistic insight into LACTB-mediated cancer-cell death and shows the dynamics of the cellular responses a particular tumor suppressive stimulus might evoke under different genetic landscapes.
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Affiliation(s)
- Juan M Gonzalez-Morena
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Sara Escudeiro-Lopes
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic
- Department of Cell Biology, Faculty of Science, Charles University, Prague, Czech Republic
| | | | - Pavel Jakoube
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic
- Department of Cell Biology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Valentina Cutano
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Judith Vinaixa-Forner
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Petra Kralova Viziova
- The Czech Center for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czech Republic
| | - Andrea Hartmanova
- The Czech Center for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czech Republic
| | - Radislav Sedlacek
- The Czech Center for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vestec, Czech Republic
| | - Susana Machado
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Beata Malcekova
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Zuzana Keckesova
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic.
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