1
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Choi HY, Zhu Y, Zhao X, Mehta S, Hernandez JC, Lee JJ, Kou Y, Machida R, Giacca M, Del Sal G, Ray R, Eoh H, Tahara SM, Chen L, Tsukamoto H, Machida K. NOTCH localizes to mitochondria through the TBC1D15-FIS1 interaction and is stabilized via blockade of E3 ligase and CDK8 recruitment to reprogram tumor-initiating cells. Exp Mol Med 2024; 56:461-477. [PMID: 38409448 PMCID: PMC10907578 DOI: 10.1038/s12276-024-01174-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 08/28/2023] [Accepted: 12/06/2023] [Indexed: 02/28/2024] Open
Abstract
The P53-destabilizing TBC1D15-NOTCH protein interaction promotes self-renewal of tumor-initiating stem-like cells (TICs); however, the mechanisms governing the regulation of this pathway have not been fully elucidated. Here, we show that TBC1D15 stabilizes NOTCH and c-JUN through blockade of E3 ligase and CDK8 recruitment to phosphodegron sequences. Chromatin immunoprecipitation (ChIP-seq) analysis was performed to determine whether TBC1D15-dependent NOTCH1 binding occurs in TICs or non-TICs. The TIC population was isolated to evaluate TBC1D15-dependent NOTCH1 stabilization mechanisms. The tumor incidence in hepatocyte-specific triple knockout (Alb::CreERT2;Tbc1d15Flox/Flox;Notch1Flox/Flox;Notch2Flox/Flox;HCV-NS5A) Transgenic (Tg) mice and wild-type mice was compared after being fed an alcohol-containing Western diet (WD) for 12 months. The NOTCH1-TBC1D15-FIS1 interaction resulted in recruitment of mitochondria to the perinuclear region. TBC1D15 bound to full-length NUMB and to NUMB isoform 5, which lacks three Ser phosphorylation sites, and relocalized NUMB5 to mitochondria. TBC1D15 binding to NOTCH1 blocked CDK8- and CDK19-mediated phosphorylation of the NOTCH1 PEST phosphodegron to block FBW7 recruitment to Thr-2512 of NOTCH1. ChIP-seq analysis revealed that TBC1D15 and NOTCH1 regulated the expression of genes involved in mitochondrial metabolism-related pathways required for the maintenance of TICs. TBC1D15 inhibited CDK8-mediated phosphorylation to stabilize NOTCH1 and protect it from degradation The NUMB-binding oncoprotein TBC1D15 rescued NOTCH1 from NUMB-mediated ubiquitin-dependent degradation and recruited NOTCH1 to the mitochondrial outer membrane for the generation and expansion of liver TICs. A NOTCH-TBC1D15 inhibitor was found to inhibit NOTCH-dependent pathways and exhibited potent therapeutic effects in PDX mouse models. This unique targeting of the NOTCH-TBC1D15 interaction not only normalized the perinuclear localization of mitochondria but also promoted potent cytotoxic effects against TICs to eradicate patient-derived xenografts through NOTCH-dependent pathways.
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Affiliation(s)
- Hye Yeon Choi
- Departments of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, USA
| | - Yicheng Zhu
- Departments of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, USA
| | - Xuyao Zhao
- Departments of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, USA
| | - Simran Mehta
- Departments of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, USA
| | - Juan Carlos Hernandez
- Departments of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, USA
| | - Jae-Jin Lee
- Departments of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, USA
| | - Yi Kou
- Viterbi School of Engineering, University of Southern California, Los Angeles, CA, USA
| | - Risa Machida
- Departments of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, USA
| | - Mauro Giacca
- International Centre for Genetic Engineering and Biotechnology, Trieste, Italy
| | - Giannino Del Sal
- Department of Life Sciences, University of Trieste, 34127, Trieste, Italy
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Area Science Park-Padriciano, Trieste, Italy
- IFOM ETS, The AIRC Institute of Molecular Oncology, Milan, Italy
| | - Ratna Ray
- Saint Louis University, School of Medicine, St Louis, MO, USA
| | - Hyungjin Eoh
- Departments of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, USA
| | - Stanley M Tahara
- Departments of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, USA
| | - Lin Chen
- Viterbi School of Engineering, University of Southern California, Los Angeles, CA, USA
| | - Hidekazu Tsukamoto
- Department of Pathology, University of Southern California, Los Angeles, CA, USA
- Southern California Research Center for ALPD and Cirrhosis, Los Angeles, CA, USA
| | - Keigo Machida
- Departments of Molecular Microbiology and Immunology, University of Southern California, Los Angeles, CA, USA.
- Southern California Research Center for ALPD and Cirrhosis, Los Angeles, CA, USA.
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2
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Mosteiro L, Nguyen TTT, Hankeova S, Alvarez-Sierra D, Reichelt M, Vandriel SM, Lai Z, Choudhury FK, Sangaraju D, Kamath BM, Scherl A, Pujol-Borrell R, Piskol R, Siebel CW. Notch signaling in thyrocytes is essential for adult thyroid function and mammalian homeostasis. Nat Metab 2023; 5:2094-2110. [PMID: 38123718 DOI: 10.1038/s42255-023-00937-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 10/31/2023] [Indexed: 12/23/2023]
Abstract
The thyroid functions as an apex endocrine organ that controls growth, differentiation and metabolism1, and thyroid diseases comprise the most common endocrine disorders2. Nevertheless, high-resolution views of the cellular composition and signals that govern the thyroid have been lacking3,4. Here, we show that Notch signalling controls homeostasis and thermoregulation in adult mammals through a mitochondria-based mechanism in a subset of thyrocytes. We discover two thyrocyte subtypes in mouse and human thyroids, identified in single-cell analyses by different levels of metabolic activity and Notch signalling. Therapeutic antibody blockade of Notch in adult mice inhibits a thyrocyte-specific transcriptional program and induces thyrocyte defects due to decreased mitochondrial activity and ROS production. Thus, disrupting Notch signalling in adult mice causes hypothyroidism, characterized by reduced levels of circulating thyroid hormone and dysregulation of whole-body thermoregulation. Inducible genetic deletion of Notch1 and 2 in thyrocytes phenocopies this antibody-induced hypothyroidism, establishing a direct role for Notch in adult murine thyrocytes. We confirm that hypothyroidism is enriched in children with Alagille syndrome, a genetic disorder marked by Notch mutations, suggesting that these findings translate to humans.
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Grants
- NA Genentech (Genentech, Inc.)
- NA Genentech (Genentech, Inc.)
- NA Genentech (Genentech, Inc.)
- NA Genentech (Genentech, Inc.)
- NA Genentech (Genentech, Inc.)
- NA Genentech (Genentech, Inc.)
- NA Genentech (Genentech, Inc.)
- NA Genentech (Genentech, Inc.)
- NA Genentech (Genentech, Inc.)
- NA Genentech (Genentech, Inc.)
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Affiliation(s)
- Lluc Mosteiro
- Department of Discovery Oncology, Genentech, South San Francisco, CA, USA.
| | - Thi Thu Thao Nguyen
- Department of Oncology Bioinformatics, Genentech, South San Francisco, CA, USA
| | - Simona Hankeova
- Department of Discovery Oncology, Genentech, South San Francisco, CA, USA
| | - Daniel Alvarez-Sierra
- Translational Immunology Group, Vall d'Hebron Institut de Recerca (VHIR), Campus Vall Hebron, Barcelona, Spain
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Mike Reichelt
- Department of Research Pathology, Genentech, South San Francisco, CA, USA
| | - Shannon M Vandriel
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Zijuan Lai
- Department of Drug Metabolism and Pharmacokinetics, Genentech, South San Francisco, CA, USA
| | - Feroza K Choudhury
- Department of Drug Metabolism and Pharmacokinetics, Genentech, South San Francisco, CA, USA
| | - Dewakar Sangaraju
- Department of Drug Metabolism and Pharmacokinetics, Genentech, South San Francisco, CA, USA
| | - Binita M Kamath
- Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Alexis Scherl
- Department of Research Pathology, Genentech, South San Francisco, CA, USA
| | - Ricardo Pujol-Borrell
- Translational Immunology Group, Vall d'Hebron Institut de Recerca (VHIR), Campus Vall Hebron, Barcelona, Spain
- Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Bellaterra, Spain
- Vall Hebron Institute of Oncology (VHIO), Campus Vall Hebron, Barcelona, Spain
| | - Robert Piskol
- Department of Oncology Bioinformatics, Genentech, South San Francisco, CA, USA
| | - Christian W Siebel
- Department of Discovery Oncology, Genentech, South San Francisco, CA, USA.
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3
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Farleigh K, Ascanio A, Farleigh ME, Schield DR, Card DC, Leal M, Castoe TA, Jezkova T, Rodríguez-Robles JA. Signals of differential introgression in the genome of natural hybrids of Caribbean anoles. Mol Ecol 2023; 32:6000-6017. [PMID: 37861454 DOI: 10.1111/mec.17170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 08/30/2023] [Accepted: 10/03/2023] [Indexed: 10/21/2023]
Abstract
Hybridization facilitates recombination between divergent genetic lineages and can be shaped by both neutral and selective processes. Upon hybridization, loci with no net fitness effects introgress randomly from parental species into the genomes of hybrid individuals. Conversely, alleles from one parental species at some loci may provide a selective advantage to hybrids, resulting in patterns of introgression that do not conform to random expectations. We investigated genomic patterns of differential introgression in natural hybrids of two species of Caribbean anoles, Anolis pulchellus and A. krugi in Puerto Rico. Hybrids exhibit A. pulchellus phenotypes but possess A. krugi mitochondrial DNA, originated from multiple, independent hybridization events, and appear to have replaced pure A. pulchellus across a large area in western Puerto Rico. Combining genome-wide SNP datasets with bioinformatic methods to identify signals of differential introgression in hybrids, we demonstrate that the genomes of hybrids are dominated by pulchellus-derived alleles and show only 10%-20% A. krugi ancestry. The majority of A. krugi loci in hybrids exhibit a signal of non-random differential introgression and include loci linked to genes involved in development and immune function. Three of these genes (delta like canonical notch ligand 1, jagged1 and notch receptor 1) affect cell differentiation and growth and interact with mitochondrial function. Our results suggest that differential non-random introgression for a subset of loci may be driven by selection favouring the inheritance of compatible mitochondrial and nuclear-encoded genes in hybrids.
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Affiliation(s)
- Keaka Farleigh
- Department of Biology, Miami University, Oxford, Ohio, USA
| | | | | | - Drew R Schield
- Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, Colorado, USA
| | - Daren C Card
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts, USA
- Museum of Comparative Zoology, Harvard University, Cambridge, Massachusetts, USA
| | - Manuel Leal
- Division of Biological Sciences, University of Missouri, Columbia, Missouri, USA
| | - Todd A Castoe
- Department of Biology, University of Texas, Arlington, Arlington, Texas, USA
| | - Tereza Jezkova
- Department of Biology, Miami University, Oxford, Ohio, USA
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4
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Dellaqua TT, Franchi FF, Dos Santos PH, Giroto AB, Nunes SG, de Lima VAV, Guilherme VB, Fontes PK, Sudano MJ, de Souza Castilho AC. Molecular phenotypes of bovine blastocyst derived from in vitro-matured oocyte supplemented with PAPP-A. Vet Res Commun 2023; 47:1263-1272. [PMID: 36653723 DOI: 10.1007/s11259-023-10072-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 01/10/2023] [Indexed: 01/20/2023]
Abstract
Insulin-like growth factor-1 (IGF-1) regulates cellular lipid content, whereas pregnancy-associated plasma protein-A (PAPP-A) increases IGF-1 bioavailability. Using in vitro-matured cumulus-oocyte complexes, we aimed to evaluate the impact of PAPP-A on the blastocyst lipid content, embryo cryotolerance and embryonic transcriptional profile. We determined that PAPP-A did not affect the lipid content of oocytes, blastocysts, or blastocyst yield (P > 0.05). However, PAPP-A modulated the embryo transcriptional profiles by downregulating PPARGC1A and AKR1B1, which are related to lipid metabolism; CASP9, a pro-apoptotic gene; and IFN-τ, a marker of embryo quality (P < 0.05). Furthermore, the use of PAPP-A improved blastocyst re-expansion in the first 3 h of culture after vitrification (P < 0.05). Although PAPP-A did not affect the blastocyst lipid content or embryo production, we suggest that embryonic transcriptional modulation could contribute to maintain the balance in embryo lipid metabolism. Furthermore, PAPP-A's approach seems to control key intracellular pathways that improve post-cryopreservation development of blastocysts.
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Affiliation(s)
- Thaisy Tino Dellaqua
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, Botucatu, SP, Brazil
| | - Fernanda Fagali Franchi
- Department of Biophysics and Pharmacology, Institute of Biosciences, São Paulo State University, Botucatu, SP, Brazil
- Reproductive and Developmental Biology Laboratory, Department of Veterinary Medicine and Animal Science, University of Milan, Milan, Italy
| | - Priscila Helena Dos Santos
- Department of Biophysics and Pharmacology, Institute of Biosciences, São Paulo State University, Botucatu, SP, Brazil
| | | | - Sarah Gomes Nunes
- Department of Biophysics and Pharmacology, Institute of Biosciences, São Paulo State University, Botucatu, SP, Brazil
| | | | | | - Patrícia Kubo Fontes
- Department of Biophysics and Pharmacology, Institute of Biosciences, São Paulo State University, Botucatu, SP, Brazil
| | - Mateus José Sudano
- Center of Natural and Human Sciences, Federal University of ABC, Santo André, SP, Brazil
- Center of Biological and Health Sciences, Federal University of São Carlos, São Carlos, SP, Brazil
| | - Anthony César de Souza Castilho
- University of Western São Paulo, Presidente Prudente, SP, Brazil.
- University of Western São Paulo (UNOESTE) - Campus II, Rodovia Raposo Tavares, km 572, Presidente Prudente, SP, Brasil.
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5
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Mo D, Liu C, Chen Y, Cheng X, Shen J, Zhao L, Zhang J. The mitochondrial ribosomal protein mRpL4 regulates Notch signaling. EMBO Rep 2023; 24:e55764. [PMID: 37009823 PMCID: PMC10240210 DOI: 10.15252/embr.202255764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 03/07/2023] [Accepted: 03/18/2023] [Indexed: 04/04/2023] Open
Abstract
Mitochondrial ribosomal proteins (MRPs) assemble as specialized ribosome to synthesize mtDNA-encoded proteins, which are essential for mitochondrial bioenergetic and metabolic processes. MRPs are required for fundamental cellular activities during animal development, but their roles beyond mitochondrial protein translation are poorly understood. Here, we report a conserved role of the mitochondrial ribosomal protein L4 (mRpL4) in Notch signaling. Genetic analyses demonstrate that mRpL4 is required in the Notch signal-receiving cells to permit target gene transcription during Drosophila wing development. We find that mRpL4 physically and genetically interacts with the WD40 repeat protein wap and activates the transcription of Notch signaling targets. We show that human mRpL4 is capable of replacing fly mRpL4 during wing development. Furthermore, knockout of mRpL4 in zebrafish leads to downregulated expression of Notch signaling components. Thus, we have discovered a previously unknown function of mRpL4 during animal development.
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Affiliation(s)
- Dongqing Mo
- Department of Plant Biosecurity and MOA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant ProtectionChina Agricultural UniversityBeijingChina
| | - Chenglin Liu
- Institute of Evolution & Marine BiodiversityOcean University of ChinaQingdaoChina
- College of FisheriesOcean University of ChinaQingdaoChina
- Key Laboratory of Mariculture (OUC)Ministry of EducationQingdaoChina
| | - Yao Chen
- Department of Plant Biosecurity and MOA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant ProtectionChina Agricultural UniversityBeijingChina
| | - Xinkai Cheng
- Institute of Evolution & Marine BiodiversityOcean University of ChinaQingdaoChina
- College of FisheriesOcean University of ChinaQingdaoChina
- Key Laboratory of Mariculture (OUC)Ministry of EducationQingdaoChina
| | - Jie Shen
- Department of Plant Biosecurity and MOA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant ProtectionChina Agricultural UniversityBeijingChina
| | - Long Zhao
- Institute of Evolution & Marine BiodiversityOcean University of ChinaQingdaoChina
- College of FisheriesOcean University of ChinaQingdaoChina
- Key Laboratory of Mariculture (OUC)Ministry of EducationQingdaoChina
| | - Junzheng Zhang
- Department of Plant Biosecurity and MOA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant ProtectionChina Agricultural UniversityBeijingChina
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6
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Biochemical Mechanisms beyond Glycosphingolipid Accumulation in Fabry Disease: Might They Provide Additional Therapeutic Treatments? J Clin Med 2023; 12:jcm12052063. [PMID: 36902850 PMCID: PMC10004377 DOI: 10.3390/jcm12052063] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 02/27/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Fabry disease is a rare X-linked disease characterized by deficient expression and activity of alpha-galactosidase A (α-GalA) with consequent lysosomal accumulation of glycosphingolipid in various organs. Currently, enzyme replacement therapy is the cornerstone of the treatment of all Fabry patients, although in the long-term it fails to completely halt the disease's progression. This suggests on one hand that the adverse outcomes cannot be justified only by the lysosomal accumulation of glycosphingolipids and on the other that additional therapies targeted at specific secondary mechanisms might contribute to halt the progression of cardiac, cerebrovascular, and renal disease that occur in Fabry patients. Several studies reported how secondary biochemical processes beyond Gb3 and lyso-Gb3 accumulation-such as oxidative stress, compromised energy metabolism, altered membrane lipid, disturbed cellular trafficking, and impaired autophagy-might exacerbate Fabry disease adverse outcomes. This review aims to summarize the current knowledge of these pathogenetic intracellular mechanisms in Fabry disease, which might suggest novel additional strategies for its treatment.
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7
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Wang L, Lai S, Zou H, Zhou X, Wan Q, Luo Y, Wu Q, Wan L, Liu J, Huang H. Ischemic preconditioning/ischemic postconditioning alleviates anoxia/reoxygenation injury via the Notch1/Hes1/VDAC1 axis. J Biochem Mol Toxicol 2022; 36:e23199. [PMID: 35975741 DOI: 10.1002/jbt.23199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 07/06/2022] [Accepted: 08/05/2022] [Indexed: 11/07/2022]
Abstract
Ischemic preconditioning (IPC), and ischemic postconditioning (IPost) have a significant protective effect on myocardial ischemia/reperfusion (MI/R) injury by alleviating oxidative stress and mitochondrial disturbances, although the underlying molecular mechanisms are unclear. The study was to demonstrate that cardioprotection against anoxia/reoxygenation (A/R) injury is transduced via the Notch1/Hes1/VDAC1 signaling pathway. Using mass spectrometry and tandem affinity purification (TAP), to screen for differentially expressed proteins associated with Hes1, followed by standard bioinformatics analysis. The co-immunoprecipitation (Co-IP) assay confirmed an interaction between Hes1 and VDAC1 proteins. H9c2 cells were transfected with Hes1 adenoviral N-terminal TAP vector (AD-NTAP/Hes1) and Hes1-short hairpin RNA adenoviral vector (AD-Hes1-shRNA) to establish A/R injury, IPC, and IPost models, respectively. The expression of Hes1 and VDAC1 proteins were measured by western blot analysis, while the levels of reactive oxygen species (ROS), mitochondrial membrane potential (ΔΨm), and apoptosis were evaluated by flow cytometry. AD-NTAP/Hes1 can activate the exogenous protein expression of Hes1, thus decreasing creatine phosphokinase (CPK) and lactate dehydrogenase (LDH) activity and promoting cell viability. The study found that VDAC1 was a potential target protein for Hes1 and the overexpression of Hes1 protein expression downregulated protein expression levels of VDAC1, reduced ROS production, stabilized ΔΨm, and inhibited apoptosis in H9c2 cells. Additionally, downregulation of Hes1 protein expression also upregulated VDAC1 protein expression, increased ROS production, imbalanced ΔΨm, promoted cell apoptosis, and attenuated the cardioprotection afforded by IPC and IPost. The Notch1/Hes1 signaling pathway activated by IPC/IPost can directly downregulate the protein expression of VDAC1 and consequently relieve A/R injury.
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Affiliation(s)
- Lijun Wang
- Department of Cardiac Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Department of Cardiac Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | | | - Huaxi Zou
- Department of Cardiac Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Department of Cardiac Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xueliang Zhou
- Department of Cardiac Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Qing Wan
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Yong Luo
- Central Laboratory, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, Jiangxi, China
| | - Qicai Wu
- Department of Cardiac Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Li Wan
- Department of Cardiac Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Jichun Liu
- Department of Cardiac Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Department of Cardiac Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Huang Huang
- Department of Cardiac Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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8
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Notch Signaling and Cross-Talk in Hypoxia: A Candidate Pathway for High-Altitude Adaptation. Life (Basel) 2022; 12:life12030437. [PMID: 35330188 PMCID: PMC8954738 DOI: 10.3390/life12030437] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/11/2022] [Accepted: 03/11/2022] [Indexed: 12/17/2022] Open
Abstract
Hypoxia triggers complex inter- and intracellular signals that regulate tissue oxygen (O2) homeostasis, adjusting convective O2 delivery and utilization (i.e., metabolism). Human populations have been exposed to high-altitude hypoxia for thousands of years and, in doing so, have undergone natural selection of multiple gene regions supporting adaptive traits. Some of the strongest selection signals identified in highland populations emanate from hypoxia-inducible factor (HIF) pathway genes. The HIF pathway is a master regulator of the cellular hypoxic response, but it is not the only regulatory pathway under positive selection. For instance, regions linked to the highly conserved Notch signaling pathway are also top targets, and this pathway is likely to play essential roles that confer hypoxia tolerance. Here, we explored the importance of the Notch pathway in mediating the cellular hypoxic response. We assessed transcriptional regulation of the Notch pathway, including close cross-talk with HIF signaling, and its involvement in the mediation of angiogenesis, cellular metabolism, inflammation, and oxidative stress, relating these functions to generational hypoxia adaptation.
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9
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Tang D, Liu X, Chen J. Mitoquinone intravitreal injection ameliorates retinal ischemia-reperfusion injury in rats involving SIRT1/Notch1/NADPH axis. Drug Dev Res 2022; 83:800-810. [PMID: 35014081 DOI: 10.1002/ddr.21911] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/14/2021] [Accepted: 01/03/2022] [Indexed: 12/22/2022]
Abstract
Retinal ischemia-reperfusion injury (RIRI) is an important pathological process of many ocular diseases. Mitoquinone (MitoQ), a mitochondrial targeted antioxidant, is a potential compound for therapeutic development of RIRI. This study observed the effect of MitoQ on RIRI, and further explored its possible molecular mechanism. Temporary increase in intraocular pressure was used to establish rat model of RIRI to observe the effect of MitoQ treatment on retinal function, pathological injury, oxidative stress, inflammation and apoptosis. Immunohistochemistry and Western blot were used to detect expressions of cleaved caspase 3, B cell leukemia/lymphoma 2 associated X (Bax), nicotinamide adenine dinucleotide phosphate oxidase (NOX1), NOX4, cleaved-Notch 1, hairy and enhancer of split 1 (Hes1), and sirtuin 1 (SIRT 1) in retina were detected by immunohistochemistry and Western blot. MitoQ treatment significantly improved retinal function and pathological injury, inhibited the over-production of reactive oxygen species, increased the expression of superoxide dismutase 1 (SOD 1), suppressed the releases of inflammatory cytokines, and inhibited retinal cells apoptosis. MitoQ also down-regulated the expressions of cleaved caspase 3, Bax, NOX 1, NOX 4, cleaved-Notch 1, and Hes 1, increased the expression of SIRT 1 protein and its activity. These effects were significantly reversed by SIRT1 inhibitor EX527. Our data suggests that MitoQ, as a potentially effective drug for improving RIRI, may act through the SIRT1/Notch1/NADPH signal axis.
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Affiliation(s)
- Dongyong Tang
- Department of Ophthalmology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xin Liu
- Department of Ophthalmology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jun Chen
- Department of Traditional Chinese Medicine Surgery, Clinical College, Jiangxi University of Chinese Medicine, Nanchang, China
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10
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El-Sawaf ES, Saleh S, Abdallah DM, Ahmed KA, El-Abhar HS. Vitamin D and rosuvastatin obliterate peripheral neuropathy in a type-2 diabetes model through modulating Notch1, Wnt-10α, TGF-β and NRF-1 crosstalk. Life Sci 2021; 279:119697. [PMID: 34102194 DOI: 10.1016/j.lfs.2021.119697] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 05/29/2021] [Accepted: 05/30/2021] [Indexed: 11/28/2022]
Abstract
AIMS Vitamin D and rosuvastatin are well-known drugs that mediate beneficial effects in treating type-2 diabetes (T2D) complications; however, their anti-neuropathic potential is debatable. Hence, our study investigates their neurotherapeutic potential and the possible underlying mechanisms using a T2D-associated neuropathy rat model. MAIN METHODS Diabetic peripheral neuropathy (DPN) was induced with 8 weeks of administration of a high fat fructose diet followed by a single i.p. injection of streptozotocin (35 mg/kg). Six weeks later, DPN developed and rats were divided into five groups; viz., control, untreated DPN, DPN treated with vitamin D (cholecalciferol, 3500 IU/kg/week), DPN treated with rosuvastatin (10 mg/kg/day), or DPN treated with combination vitamin D and rosuvastatin. We determined their anti-neuropathic effects on small nerves (tail flick test); large nerves (electrophysiological and histological examination); neuronal inflammation (TNF-α and IL-18); apoptosis (caspase-3 activity and Bcl-2); mitochondrial function (NRF-1, TFAM, mtDNA, and ATP); and NICD1, Wnt-10α/β-catenin, and TGF-β/Smad-7 pathways. KEY FINDINGS Two-month treatment with vitamin D and/or rosuvastatin regenerated neuronal function and architecture and abated neuronal inflammation and apoptosis. This was verified by the inhibition of the neuronal content of TNF-α, IL-18, and caspase-3 activity, while augmenting Bcl-2 content in the sciatic nerve. These treatments inhibited the protein expressions of NICD1, Wnt-10α, β-catenin, and TGF-β; increased the sciatic nerve content of Smad-7; and enhanced mitochondrial biogenesis and function. SIGNIFICANCE Vitamin D and/or rosuvastatin alleviated diabetes-induced neuropathy by suppressing Notch1 and Wnt-10α/β-catenin; modulating TGF-β/Smad-7 signaling pathways; and enhancing mitochondrial function, which lessened neuronal degeneration, demyelination, and fibrosis.
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Affiliation(s)
- Engie S El-Sawaf
- Pharmacology, Toxicology, and Biochemistry Department, Faculty of Pharmacy, Future University in Egypt, Cairo, Egypt
| | - Samira Saleh
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
| | - Dalaal M Abdallah
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Kawkab A Ahmed
- Pathology Department, Faculty of Veterinary Medicine, Cairo University, Cairo, Egypt
| | - Hanan S El-Abhar
- Pharmacology, Toxicology, and Biochemistry Department, Faculty of Pharmacy, Future University in Egypt, Cairo, Egypt; Pharmacology and Toxicology Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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11
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Nguyen TL, Nokin MJ, Terés S, Tomé M, Bodineau C, Galmar O, Pasquet JM, Rousseau B, van Liempd S, Falcon-Perez JM, Richard E, Muzotte E, Rezvani HR, Priault M, Bouchecareilh M, Redonnet-Vernhet I, Calvo J, Uzan B, Pflumio F, Fuentes P, Toribio ML, Khatib AM, Soubeyran P, Murdoch PDS, Durán RV. Downregulation of Glutamine Synthetase, not glutaminolysis, is responsible for glutamine addiction in Notch1-driven acute lymphoblastic leukemia. Mol Oncol 2021; 15:1412-1431. [PMID: 33314742 PMCID: PMC8096784 DOI: 10.1002/1878-0261.12877] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 10/21/2020] [Accepted: 12/09/2020] [Indexed: 01/03/2023] Open
Abstract
The cellular receptor Notch1 is a central regulator of T-cell development, and as a consequence, Notch1 pathway appears upregulated in > 65% of the cases of T-cell acute lymphoblastic leukemia (T-ALL). However, strategies targeting Notch1 signaling render only modest results in the clinic due to treatment resistance and severe side effects. While many investigations reported the different aspects of tumor cell growth and leukemia progression controlled by Notch1, less is known regarding the modifications of cellular metabolism induced by Notch1 upregulation in T-ALL. Previously, glutaminolysis inhibition has been proposed to synergize with anti-Notch therapies in T-ALL models. In this work, we report that Notch1 upregulation in T-ALL induced a change in the metabolism of the important amino acid glutamine, preventing glutamine synthesis through the downregulation of glutamine synthetase (GS). Downregulation of GS was responsible for glutamine addiction in Notch1-driven T-ALL both in vitro and in vivo. Our results also confirmed an increase in glutaminolysis mediated by Notch1. Increased glutaminolysis resulted in the activation of the mammalian target of rapamycin complex 1 (mTORC1) pathway, a central controller of cell growth. However, glutaminolysis did not play any role in Notch1-induced glutamine addiction. Finally, the combined treatment targeting mTORC1 and limiting glutamine availability had a synergistic effect to induce apoptosis and to prevent Notch1-driven leukemia progression. Our results placed glutamine limitation and mTORC1 inhibition as a potential therapy against Notch1-driven leukemia.
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Affiliation(s)
- Tra Ly Nguyen
- Institut Européen de Chimie et Biologie, INSERM U1218, Université de Bordeaux, Pessac, France
| | - Marie-Julie Nokin
- Institut Européen de Chimie et Biologie, INSERM U1218, Université de Bordeaux, Pessac, France
| | - Silvia Terés
- Institut Européen de Chimie et Biologie, INSERM U1218, Université de Bordeaux, Pessac, France
| | - Mercedes Tomé
- Centro Andaluz de Biología Molecular y Medicina Regenerativa - CABIMER, Consejo Superior de Investigaciones Científicas, Universidad de Sevilla, Universidad Pablo de Olavide, Seville, Spain.,Angiogenesis and Cancer Microenvironment Laboratory INSERM U1029, Université de Bordeaux, Pessac, France
| | - Clément Bodineau
- Institut Européen de Chimie et Biologie, INSERM U1218, Université de Bordeaux, Pessac, France.,Centro Andaluz de Biología Molecular y Medicina Regenerativa - CABIMER, Consejo Superior de Investigaciones Científicas, Universidad de Sevilla, Universidad Pablo de Olavide, Seville, Spain
| | - Oriane Galmar
- Institut Européen de Chimie et Biologie, INSERM U1218, Université de Bordeaux, Pessac, France
| | | | - Benoit Rousseau
- Service Commun des Animaleries, University of Bordeaux, France
| | - Sebastian van Liempd
- Exosomes Laboratory and Platform of Metabolomics, CIC bioGUNE, CIBERehd, Derio, Spain
| | - Juan Manuel Falcon-Perez
- Exosomes Laboratory and Platform of Metabolomics, CIC bioGUNE, CIBERehd, Derio, Spain.,IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
| | - Elodie Richard
- Institut Bergonié, INSERM U1218, University of Bordeaux, France
| | | | | | - Muriel Priault
- Institut de Biochimie et Génétique Cellulaires, CNRS UMR 5095, Université de Bordeaux, France
| | - Marion Bouchecareilh
- Bordeaux Research in Translational Oncology, INSERM U1053, Université de Bordeaux, France
| | - Isabelle Redonnet-Vernhet
- Maladies Héréditaires du Métabolisme, Laboratoire de Biochimie, Hôpital Pellegrin, CHU Bordeaux, France
| | - Julien Calvo
- UMR967, Inserm, CEA, Université Paris 7, Université Paris 11, Fontenay-aux-Roses, France
| | - Benjamin Uzan
- UMR967, Inserm, CEA, Université Paris 7, Université Paris 11, Fontenay-aux-Roses, France
| | - Françoise Pflumio
- UMR967, Inserm, CEA, Université Paris 7, Université Paris 11, Fontenay-aux-Roses, France
| | - Patricia Fuentes
- Centro de Biología Molecular "Severo Ochoa", Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Spain
| | - Maria L Toribio
- Centro de Biología Molecular "Severo Ochoa", Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Spain
| | - Abdel-Majid Khatib
- Angiogenesis and Cancer Microenvironment Laboratory INSERM U1029, Université de Bordeaux, Pessac, France
| | | | - Piedad Del Socorro Murdoch
- Centro Andaluz de Biología Molecular y Medicina Regenerativa - CABIMER, Consejo Superior de Investigaciones Científicas, Universidad de Sevilla, Universidad Pablo de Olavide, Seville, Spain.,Departamento de Bioquímica Vegetal y Biología Molecular, Universidad de Sevilla, Spain
| | - Raúl V Durán
- Institut Européen de Chimie et Biologie, INSERM U1218, Université de Bordeaux, Pessac, France.,Centro Andaluz de Biología Molecular y Medicina Regenerativa - CABIMER, Consejo Superior de Investigaciones Científicas, Universidad de Sevilla, Universidad Pablo de Olavide, Seville, Spain
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12
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Leem JH, Kim HC. Mitochondria disease due to humidifier disinfectants: diagnostic criteria and its evidences. Environ Anal Health Toxicol 2020; 35:e2020007. [PMID: 32693559 PMCID: PMC7374188 DOI: 10.5620/eaht.e2020007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 05/13/2020] [Indexed: 12/15/2022] Open
Abstract
Humidifier disinfectant damages caused by the misuse of humidifier disinfects, such as polyhexamethylene guanidine (PHMG), resulted in chemical disasters in South Korea in 2011. About four million people were exposed to humidifier disinfectants (HDs) in the 17 years between 1994 and 2011. Although fatal lung damage was initially reported, investigations into the victims’ injuries revealed that the damage was not limited to the lungs, but that systemic damage was also confirmed. Considering the spread of HD from the lungs to the whole body, the toxic effects of PHMG from reactive oxygen species (ROS), NOTCH signaling pathways, and mitochondrial dysfunction resulted in endothelial damage in the lungs, blood vessels, liver, kidneys, bone marrow, nerves, and muscles. The main toxic mechanisms involved in HD damage may be the NOTCH pathway and mitochondrial damage. There are many case reports which include neurologic disorders (ADHD, depression, posttraumatic stress disorder), muscular disorder (exercise intolerance, myalgia), energy metabolism disorder (chronic fatigue syndrome), and immunologic disorder (rheumatoid arthritis) in HDs victims. These case reports involve multi-system involvement in HDs victims. Further well-designed study is needed to clarify whether mitochondrial dysfunction is associated with multi-organs involvement in HDs victims.
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Affiliation(s)
- Jong Han Leem
- Department of Occupational and Environmental Medicine, Inha University, Incheon, Korea
| | - Hwan-Cheol Kim
- Department of Occupational and Environmental Medicine, Inha University, Incheon, Korea
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13
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Altered Sphingolipids Metabolism Damaged Mitochondrial Functions: Lessons Learned From Gaucher and Fabry Diseases. J Clin Med 2020; 9:jcm9041116. [PMID: 32295103 PMCID: PMC7230936 DOI: 10.3390/jcm9041116] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 04/08/2020] [Accepted: 04/10/2020] [Indexed: 12/20/2022] Open
Abstract
Sphingolipids represent a class of bioactive lipids that modulate the biophysical properties of biological membranes and play a critical role in cell signal transduction. Multiple studies have demonstrated that sphingolipids control crucial cellular functions such as the cell cycle, senescence, autophagy, apoptosis, cell migration, and inflammation. Sphingolipid metabolism is highly compartmentalized within the subcellular locations. However, the majority of steps of sphingolipids metabolism occur in lysosomes. Altered sphingolipid metabolism with an accumulation of undigested substrates in lysosomes due to lysosomal enzyme deficiency is linked to lysosomal storage disorders (LSD). Trapping of sphingolipids and their metabolites in the lysosomes inhibits lipid recycling, which has a direct effect on the lipid composition of cellular membranes, including the inner mitochondrial membrane. Additionally, lysosomes are not only the house of digestive enzymes, but are also responsible for trafficking organelles, sensing nutrients, and repairing mitochondria. However, lysosomal abnormalities lead to alteration of autophagy and disturb the energy balance and mitochondrial function. In this review, an overview of mitochondrial function in cells with altered sphingolipid metabolism will be discussed focusing on the two most common sphingolipid disorders, Gaucher and Fabry diseases. The review highlights the status of mitochondrial energy metabolism and the regulation of mitochondria-autophagy-lysosome crosstalk.
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14
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Liu X, Zhu X, Zhu G, Wang C, Gao R, Ma J. Effects of Different Ligands in the Notch Signaling Pathway on the Proliferation and Transdifferentiation of Primary Type II Alveolar Epithelial Cells. Front Pediatr 2020; 8:452. [PMID: 32850559 PMCID: PMC7424003 DOI: 10.3389/fped.2020.00452] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 06/29/2020] [Indexed: 01/08/2023] Open
Abstract
Background: Transdifferentiation of type II alveolar epithelial cells (AECII) into type I alveolar epithelial cells (AECI) is involved in neonatal respiratory distress syndrome (NRDS). Different ligands of the Notch pathway could have different effects on AECII transdifferentiation. Objective: To investigate the effects of Dlk1 and Jagged1 on the proliferation and transdifferentiation of AECII. Methods: Fetal AECIIs (19 days of gestation) were divided: control group, Dlk1 group, rhNF-κB group. Proliferation was tested using the MTT assay. Expression of surfactant protein C (SP-C) and aquaporin 5 (AQP5) was examined by immunofluorescence. mRNA and protein levels of SP-C, AQP5, Nortch1, Dlk1, Jagged1, and Hes1 were examined by RT-PCR and western blot. Results: In response to Dlk1, cell number and proliferation were increased (P < 0.05), and mRNA and protein levels of SP-C, Dlk1, Notch1, and Hes1 were up-regulated, while AQP and Jagged1 were decreased. In response to rhNF-κB, the cell number and proliferation were reduced, and mRNA and protein levels of Jagged1 and Notch1 were up-regulated, while Dlk1, and SP-C were downregulated. In the Dlk1 group, SP-C, and AQP5 expression patterns suggested that the cells were still transdifferentiating by 96 h, while in the rhNF-κB group, most cells had transdifferentiated by 72 h and were close to apoptosis by 96 h. Conclusion: These results suggest that Dlk1 promoted proliferation of AECIIs and inhibited cell transdifferentiation, while Jagged1 treatment inhibited proliferation of AECIIs and promoted transdifferentiation to AECIs. These results provide some clue for the eventual management of NDRS.
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Affiliation(s)
- Xiuxiang Liu
- Department of Neonatology, Binzhou Medical University Hospital, Binzhou, China
| | - Xiaoxi Zhu
- Department of Neonatology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - Guoqing Zhu
- Department of Pediatrics, Binzhou People's Hospital, Binzhou, China
| | - Chaoyun Wang
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, China
| | - Ruiwei Gao
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - Jinshuai Ma
- Department of Neonatology, Binzhou Medical University Hospital, Binzhou, China
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15
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Kim SA, Jang EH, Mun JY, Choi H. Propionic acid induces mitochondrial dysfunction and affects gene expression for mitochondria biogenesis and neuronal differentiation in SH-SY5Y cell line. Neurotoxicology 2019; 75:116-122. [PMID: 31526819 DOI: 10.1016/j.neuro.2019.09.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 08/27/2019] [Accepted: 09/12/2019] [Indexed: 12/20/2022]
Abstract
Studies in animal models have shown that the short-chain fatty acid, propionic acid (PPA), interferes with mitochondrial metabolism leading to mitochondrial dysfunction and behavioral abnormalities. The aim of this study was to investigate the effects of PPA on mitochondrial function and gene expression in neuronal cells. SH-SY5Y cells and normal human neural progenitor (NHNP) cells were exposed to 1, 5 mM PPA for 4 or 24 h and we found that the mitochondrial potential measured in SH-SY5Y cells decreased in a dose-dependent manner after PPA treatment. Electron microscopy analysis revealed that the size of the mitochondria was significantly reduced following PPA treatment. A dose-dependent increase in the mitochondrial DNA copy number was observed in the PPA-treated cells. The expression of the mitochondrial biogenesis-related proteins PGC-1α, TFAM, SIRT3, and COX4 was significantly increased after PPA treatment. Transcriptome analysis revealed that mRNA expression in the notch signaling-related genes ASCL1 and LFNG changed after PPA treatment and the positive correlated protein expression changes were also observed. These results revealed that PPA treatment may affect neurodevelopment by altering mitochondrial function and notch signaling-related gene expression.
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Affiliation(s)
- Soon Ae Kim
- Department of Pharmacology, School of Medicine, Eulji University, Daejeon, Republic of Korea.
| | - Eun Hye Jang
- Department of Pharmacology, School of Medicine, Eulji University, Daejeon, Republic of Korea
| | - Ji Young Mun
- Neural Circuits Research Group, Korea Brain Research Institute, Daegu, Republic of Korea
| | - Hyosun Choi
- Neural Circuits Research Group, Korea Brain Research Institute, Daegu, Republic of Korea; BK21 Plus Program, Department of Senior Healthcare, Graduate School, Eulji University, Daejeon, Republic of Korea
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16
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Nutritional Preconditioning of Apigenin Alleviates Myocardial Ischemia/Reperfusion Injury via the Mitochondrial Pathway Mediated by Notch1/Hes1. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:7973098. [PMID: 31015891 PMCID: PMC6446095 DOI: 10.1155/2019/7973098] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 12/01/2018] [Accepted: 01/27/2019] [Indexed: 01/08/2023]
Abstract
Apigenin (Api), a natural flavone found in high amounts in several herbs, has shown potent cardioprotective effects in clinical studies, although the underlying mechanisms are not clear. We hypothesized that Api protects the myocardium from simulated ischemia/reperfusion (SI/R) injury via nutritional preconditioning (NPC). Rats fed with Api-containing food showed improvement in cardiac functions; lactate dehydrogenase (LDH) and creatine phosphokinase (CPK) activities; infarct size; apoptosis rates; malondialdehyde (MDA) levels; caspase-3, superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and catalase (CAT) activities; and ferric reducing antioxidant power (FRAP) compared to those fed standard chow following SI/R injury. In addition, Api pretreatment significantly improved the viability, decreased the LDH activity and intracellular reactive oxygen species (ROS) generation, alleviated the loss of mitochondrial membrane potential (MMP), prevented the opening of the mitochondrial permeability transition pore (mPTP), and decreased the caspase-3 activity, cytochrome c (Cyt C) release, and apoptosis induced by SI/R in primary cardiomyocytes. Mechanistically, Api upregulated Hes1 expression and was functionally neutralized by the Notch1 γ-secretase inhibitor GSI, as well as the mPTP opener atractyloside (Atr). Taken together, Api protected the myocardium against SI/R injury via the mitochondrial pathway mediated by the Notch1/Hes1 signaling pathway.
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17
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A cold-water soluble polysaccharide isolated from Grifola frondosa induces the apoptosis of HepG2 cells through mitochondrial passway. Int J Biol Macromol 2019; 125:1232-1241. [DOI: 10.1016/j.ijbiomac.2018.09.098] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 09/14/2018] [Accepted: 09/16/2018] [Indexed: 12/21/2022]
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18
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Lotti LV, Vespa S, Pantalone MR, Perconti S, Esposito DL, Visone R, Veronese A, Paties CT, Sanna M, Verginelli F, Nauclér CS, Mariani-Costantini R. A Developmental Perspective on Paragangliar Tumorigenesis. Cancers (Basel) 2019; 11:cancers11030273. [PMID: 30813557 PMCID: PMC6468609 DOI: 10.3390/cancers11030273] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 02/20/2019] [Accepted: 02/21/2019] [Indexed: 12/13/2022] Open
Abstract
In this review, we propose that paraganglioma is a fundamentally organized, albeit aberrant, tissue composed of neoplastic vascular and neural cell types that share a common origin from a multipotent mesenchymal-like stem/progenitor cell. This view is consistent with the pseudohypoxic footprint implicated in the molecular pathogenesis of the disease, is in harmony with the neural crest origin of the paraganglia, and is strongly supported by the physiological model of carotid body hyperplasia. Our immunomorphological and molecular studies of head and neck paragangliomas demonstrate in all cases relationships between the vascular and the neural tumor compartments, that share mesenchymal and immature vasculo-neural markers, conserved in derived cell cultures. This immature, multipotent phenotype is supported by constitutive amplification of NOTCH signaling genes and by loss of the microRNA-200s and -34s, which control NOTCH1, ZEB1, and PDGFRA in head and neck paraganglioma cells. Importantly, the neuroepithelial component is distinguished by extreme mitochondrial alterations, associated with collapse of the ΔΨm. Finally, our xenograft models of head and neck paraganglioma demonstrate that mesenchymal-like cells first give rise to a vasculo-angiogenic network, and then self-organize into neuroepithelial-like clusters, a process inhibited by treatment with imatinib.
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Affiliation(s)
- Lavinia Vittoria Lotti
- Department of Experimental Medicine, "La Sapienza" University, Viale Regina Elena 324, 00161 Rome, Italy.
| | - Simone Vespa
- Center of Sciences on Aging and Translational Medicine (CeSI-MeT), "G. d'Annunzio" University, Via Luigi Polacchi 11, 66100 Chieti, Italy.
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University, Via dei Vestini 31, 66100 Chieti, Italy.
| | - Mattia Russel Pantalone
- Department of Medicine (Solna), Division of Microbial Pathogenesis, BioClinicum, Karolinska Institutet, 17164 Stockholm, Sweden.
| | - Silvia Perconti
- Center of Sciences on Aging and Translational Medicine (CeSI-MeT), "G. d'Annunzio" University, Via Luigi Polacchi 11, 66100 Chieti, Italy.
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University, Via dei Vestini 31, 66100 Chieti, Italy.
| | - Diana Liberata Esposito
- Center of Sciences on Aging and Translational Medicine (CeSI-MeT), "G. d'Annunzio" University, Via Luigi Polacchi 11, 66100 Chieti, Italy.
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University, Via dei Vestini 31, 66100 Chieti, Italy.
| | - Rosa Visone
- Center of Sciences on Aging and Translational Medicine (CeSI-MeT), "G. d'Annunzio" University, Via Luigi Polacchi 11, 66100 Chieti, Italy.
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University, Via dei Vestini 31, 66100 Chieti, Italy.
| | - Angelo Veronese
- Department of Medicine and Aging Sciences, "G. d'Annunzio" University, Via Luigi Polacchi 11, 66100 Chieti, Italy.
| | - Carlo Terenzio Paties
- Department of Oncology-Hematology, Service of Anatomic Pathology, "Guglielmo da Saliceto" Hospital, Via Taverna 49, 29100 Piacenza, Italy.
| | - Mario Sanna
- Skull Base Unit, "Gruppo Otologico" Piacenza-Roma, Via Antonio Emmanueli, 42, 29121 Piacenza, Italy.
| | - Fabio Verginelli
- Department of Pharmacy, "G. d'Annunzio" University, Via dei Vestini 31, 66100 Chieti, Italy.
| | - Cecilia Soderberg Nauclér
- Department of Medicine (Solna), Division of Microbial Pathogenesis, BioClinicum, Karolinska Institutet, 17164 Stockholm, Sweden.
| | - Renato Mariani-Costantini
- Center of Sciences on Aging and Translational Medicine (CeSI-MeT), "G. d'Annunzio" University, Via Luigi Polacchi 11, 66100 Chieti, Italy.
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University, Via dei Vestini 31, 66100 Chieti, Italy.
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19
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Paine MRL, Liu J, Huang D, Ellis SR, Trede D, Kobarg JH, Heeren RMA, Fernández FM, MacDonald TJ. Three-Dimensional Mass Spectrometry Imaging Identifies Lipid Markers of Medulloblastoma Metastasis. Sci Rep 2019; 9:2205. [PMID: 30778099 PMCID: PMC6379434 DOI: 10.1038/s41598-018-38257-0] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 12/18/2018] [Indexed: 12/11/2022] Open
Abstract
Treatment for medulloblastoma (MB) — the most common malignant pediatric brain tumor — includes prophylactic radiation administered to the entire brain and spine due to the high incidence of metastasis to the central nervous system. However, the majority of long-term survivors are left with permanent and debilitating neurocognitive impairments as a result of this therapy, while the remaining 30–40% of patients relapse with terminal metastatic disease. Development of more effective targeted therapies has been hindered by our lack of understanding of the underlying mechanisms regulating the metastatic process in this disease. To understand the mechanism by which MB metastasis occurs, three-dimensional matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) experiments were performed on whole brains from a mouse model of human medulloblastoma. Analyzing the tumor and surrounding normal brain in its entirety enabled the detection of low abundance, spatially-heterogeneous lipids associated with tumor development. Boundaries of metastasizing and non-metastasizing primary tumors were readily defined, leading to the identification of lipids associated with medulloblastoma metastasis, including phosphatidic acids, phosphatidylethanolamines, phosphatidylserines, and phosphoinositides. These lipids provide a greater insight into the metastatic process and may ultimately lead to the discovery of biomarkers and novel targets for the diagnosis and treatment of metastasizing MB in humans.
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Affiliation(s)
- Martin R L Paine
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA.,Maastricht Multimodal Molecular Imaging Institute, Division of Imaging Mass Spectrometry, Maastricht University, Maastricht, 6229ER, The Netherlands
| | - Jingbo Liu
- Aflac Cancer and Blood Disorders Center, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Danning Huang
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Shane R Ellis
- Maastricht Multimodal Molecular Imaging Institute, Division of Imaging Mass Spectrometry, Maastricht University, Maastricht, 6229ER, The Netherlands
| | | | | | - Ron M A Heeren
- Maastricht Multimodal Molecular Imaging Institute, Division of Imaging Mass Spectrometry, Maastricht University, Maastricht, 6229ER, The Netherlands.
| | - Facundo M Fernández
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA. .,Integrated Cancer Research Center, Georgia Institute of Technology, Atlanta, GA, 30332, USA. .,Institute of Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
| | - Tobey J MacDonald
- Aflac Cancer and Blood Disorders Center, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, 30322, USA.
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20
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Fan Y, Yang Q, Yang Y, Gao Z, Ma Y, Zhang L, Liang W, Ding G. Sirt6 Suppresses High Glucose-Induced Mitochondrial Dysfunction and Apoptosis in Podocytes through AMPK Activation. Int J Biol Sci 2019; 15:701-713. [PMID: 30745856 PMCID: PMC6367578 DOI: 10.7150/ijbs.29323] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Accepted: 12/21/2018] [Indexed: 12/11/2022] Open
Abstract
Previous studies have shown that mitochondrial dysfunction plays an important role in high- glucose(HG)-induced podocyte injury and thus contributes to the progression of diabetic nephropathy(DN). The histone deacetylase Sirtuin6 (Sirt6) has been revealed to have an essential role in the regulation of mitochondrial function in skeletal muscle and cardiomyocytes. However, its specific role in mitochondrial homeostasis in podocytes is undetermined. Here, we aimeds to explore the physiological function of Sirt6 in podocyte mitochondria and apoptosis under HG conditions and explore the possible mechanism. Herein, we observed that Sirt6-WT-1 colocalization was suppressed in the glomeruli of patients with DN. In addition, diabetic mice exhibited reduced Sirt6 expression and AMP kinase (AMPK) dephosphorylation accompanied by mitochondrial morphological abnormalities. In vitro, podocytes exposed to HG presented with mitochondrial morphological alterations and podocyte apoptosis accompanied by Sirt6 and p-AMPK downregulation. In addition, HG promoted a decrease in mitochondrial number and an increase in mitochondrial superoxide production as well as a decreased mitochondrial membrane potential. ROS production was also increased in HG-treated podocytes. Conversely, all these mitochondrial defects induced by HG were significantly alleviated by Sirt6 plasmid transfection. Sirt6 overexpression simultaneously alleviated HG-induced podocyte apoptosis and oxidative stress, as well as increased AMPK phosphorylation. Increased levels of H3K9ac and H3K56ac induced by HG were attenuated in podocytes transfected with Sirt6 plasmids. Therefore, these results elucidated that Sirt6 protects mitochondria of podocytes and exerts anti-apoptotic effects via activating AMPK pathway. The present findings provide key insights into the pivotal role of mitochondria regulation by SIRT6 in its protective effects on podocytes.
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Affiliation(s)
- Yanqin Fan
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Qian Yang
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yingjie Yang
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Zhao Gao
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yiqiong Ma
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Lu Zhang
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Wei Liang
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Guohua Ding
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
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21
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Zhou X, Wu X, Xu Q, Zhu R, Xu H, Li Y, Liu S, Huang H, Xu X, Wan L, Wu Q, Liu J. Notch1 provides myocardial protection by improving mitochondrial quality control. J Cell Physiol 2018; 234:11835-11841. [PMID: 30515819 DOI: 10.1002/jcp.27892] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 11/08/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Xue‐Liang Zhou
- Department of Cardiac Surgery The First Affiliated Hospital, Nanchang University Nanchang China
| | - Xia Wu
- Department of Cardiac Surgery The First Affiliated Hospital, Nanchang University Nanchang China
| | - Qi‐Rong Xu
- Department of Cardiac Surgery The First Affiliated Hospital, Nanchang University Nanchang China
| | - Rong‐Rong Zhu
- Department of Obstetrics and Gynecology Jiangxi Province Hospital of Integrated Traditional Chinese and Western Medicine Nanchang China
| | - Hua Xu
- Department of Cardiac Surgery The First Affiliated Hospital, Nanchang University Nanchang China
| | - Yun‐Yun Li
- Department of Cardiac Surgery The First Affiliated Hospital, Nanchang University Nanchang China
| | - Sheng Liu
- Department of Cardiac Surgery The First Affiliated Hospital, Nanchang University Nanchang China
| | - Huang Huang
- Department of Cardiac Surgery The First Affiliated Hospital, Nanchang University Nanchang China
| | - Xinping Xu
- Department of Cardiac Surgery The First Affiliated Hospital, Nanchang University Nanchang China
| | - Li Wan
- Department of Cardiac Surgery The First Affiliated Hospital, Nanchang University Nanchang China
| | - Qi‐Cai Wu
- Department of Cardiac Surgery The First Affiliated Hospital, Nanchang University Nanchang China
| | - Ji‐Chun Liu
- Department of Cardiac Surgery The First Affiliated Hospital, Nanchang University Nanchang China
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22
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Hossain F, Sorrentino C, Ucar DA, Peng Y, Matossian M, Wyczechowska D, Crabtree J, Zabaleta J, Morello S, Del Valle L, Burow M, Collins-Burow B, Pannuti A, Minter LM, Golde TE, Osborne BA, Miele L. Notch Signaling Regulates Mitochondrial Metabolism and NF-κB Activity in Triple-Negative Breast Cancer Cells via IKKα-Dependent Non-canonical Pathways. Front Oncol 2018; 8:575. [PMID: 30564555 PMCID: PMC6289043 DOI: 10.3389/fonc.2018.00575] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Accepted: 11/15/2018] [Indexed: 12/21/2022] Open
Abstract
Triple negative breast cancer (TNBC) patients have high risk of recurrence and metastasis, and current treatment options remain limited. Cancer stem-like cells (CSCs) have been linked to cancer initiation, progression and chemotherapy resistance. Notch signaling is a key pathway regulating TNBC CSC survival. Treatment of TNBC with PI3K or mTORC1/2 inhibitors results in drug-resistant, Notch-dependent CSC. However, downstream mechanisms and potentially druggable Notch effectors in TNBC CSCs are largely unknown. We studied the role of the AKT pathway and mitochondrial metabolism downstream of Notch signaling in TNBC CSC from cell lines representative of different TNBC molecular subtypes as well as a novel patient-derived model. We demonstrate that exposure of TNBC cells to recombinant Notch ligand Jagged1 leads to rapid AKT phosphorylation in a Notch1-dependent but RBP-Jκ independent fashion. This requires mTOR and IKKα. Jagged1 also stimulates mitochondrial respiration and fermentation in an AKT- and IKK-dependent fashion. Notch1 co-localizes with mitochondria in TNBC cells. Pharmacological inhibition of Notch cleavage by gamma secretase inhibitor PF-03084014 in combination with AKT inhibitor MK-2206 or IKK-targeted NF-κB inhibitor Bay11-7082 blocks secondary mammosphere formation from sorted CD90hi or CD44+CD24low (CSCs) cells. A TNBC patient-derived model gave comparable results. Besides mitochondrial oxidative metabolism, Jagged1 also triggers nuclear, NF-κB-dependent transcription of anti-apoptotic gene cIAP-2. This requires recruitment of Notch1, IKKα and NF-κB to the cIAP-2 promoter. Our observations support a model where Jagged1 triggers IKKα-dependent, mitochondrial and nuclear Notch1 signals that stimulate AKT phosphorylation, oxidative metabolism and transcription of survival genes in PTEN wild-type TNBC cells. These data suggest that combination treatments targeting the intersection of the Notch, AKT and NF-κB pathways have potential therapeutic applications against CSCs in TNBC cases with Notch1 and wild-type PTEN expression.
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Affiliation(s)
- Fokhrul Hossain
- Louisiana State University Health Sciences Center, Stanley S. Scott Cancer Center, New Orleans, LA, United States.,Department of Genetics, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Claudia Sorrentino
- Louisiana State University Health Sciences Center, Stanley S. Scott Cancer Center, New Orleans, LA, United States.,Department of Pharmacy, University of Salerno, Salerno, Italy
| | - Deniz A Ucar
- Louisiana State University Health Sciences Center, Stanley S. Scott Cancer Center, New Orleans, LA, United States.,Department of Genetics, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Yin Peng
- Department of Pathology, The Shenzhen University School of Medicine, Shenzhen, China
| | - Margarite Matossian
- Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Dorota Wyczechowska
- Louisiana State University Health Sciences Center, Stanley S. Scott Cancer Center, New Orleans, LA, United States
| | - Judy Crabtree
- Department of Genetics, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Jovanny Zabaleta
- Louisiana State University Health Sciences Center, Stanley S. Scott Cancer Center, New Orleans, LA, United States
| | - Silvana Morello
- Department of Pharmacy, University of Salerno, Salerno, Italy
| | - Luis Del Valle
- Louisiana State University Health Sciences Center, Stanley S. Scott Cancer Center, New Orleans, LA, United States
| | - Matthew Burow
- Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Bridgette Collins-Burow
- Department of Medicine, Tulane University School of Medicine, New Orleans, LA, United States
| | - Antonio Pannuti
- Louisiana State University Health Sciences Center, Stanley S. Scott Cancer Center, New Orleans, LA, United States
| | - Lisa M Minter
- Department of Veterinary and Animal Sciences, University of Massachusetts at Amherst, Amherst, MA, United States
| | - Todd E Golde
- Department of Neuroscience, McKnight Brain Institute, University of Florida at Gainesville, Gainesville, FL, United States
| | - Barbara A Osborne
- Department of Veterinary and Animal Sciences, University of Massachusetts at Amherst, Amherst, MA, United States
| | - Lucio Miele
- Louisiana State University Health Sciences Center, Stanley S. Scott Cancer Center, New Orleans, LA, United States.,Department of Genetics, Louisiana State University Health Sciences Center, New Orleans, LA, United States
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23
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Zhao Z, Zhao Y, Ying-Chun L, Zhao L, Zhang W, Yang JG. Protective role of microRNA-374 against myocardial ischemia-reperfusion injury in mice following thoracic epidural anesthesia by downregulating dystrobrevin alpha-mediated Notch1 axis. J Cell Physiol 2018; 234:10726-10740. [PMID: 30565678 DOI: 10.1002/jcp.27745] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 10/22/2018] [Indexed: 12/20/2022]
Abstract
Ischemia-reperfusion (I/R) injury often leads to myocardial apoptosis and necrosis. Studies have demonstrated the role microRNAs (miRs) played in myocardial I/R injury. Thus, we established a myocardial I/R injury model and a thoracic epidural anesthesia (TEA) model in mice to explore whether microRNA-374 (miR-374) affects myocardial I/R injury. We collected myocardial tissues to evaluate whether TEA exerts a protection effect on myocardial tissues. In addition, the levels of miR-374, dystrobrevin alpha (DTNA), and the statue of the Notch1 axis were detected. Subsequently, cardiomyocytes extracted from TEA mice were treated to regulate their levels of miR-374 and DTNA. After that, cell viability, cell cycle distribution, and apoptosis of cardiomyocytes were assessed. This was followed by the detection of the myocardial infarction area. The mice models of myocardial I/R injury were associated with poorly expressed miR-374 and highly expressed DTNA. TEA was found to protect myocardial tissues against myocardial I/R injury by elevating miR-374 and reducing DTNA. Dual-luciferase reporter assay validated that DTNA was the target gene of miR-374. Cardiomyocytes with overexpressed miR-374 were shown to have downregulated DTNA levels and blocked Notch1 axis. Overexpressed miR-374 was also found to promote the viability and inhibit the apoptosis of cardiomyocytes, as well as to increase the number of cells arrested in the S phase. In accordance with this, the myocardial infarction area was decreased with the upregulated miR-347 and downregulated DTNA. Collectively, these results demonstrated that, by inhibiting the activity of DTNA-mediated Notch1 axis, miR-374 could protect against myocardial I/R injury in mice after TEA.
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Affiliation(s)
- Zheng Zhao
- Department of Cardiology, Cangzhou Central Hospital, Cangzhou, China
| | - Yun Zhao
- Department of Cardiology, Cangzhou People's Hospital, Cangzhou, China
| | - Li Ying-Chun
- Department of Gynaecology, Cangzhou Central Hospital, Cangzhou, China
| | - Lei Zhao
- Department of Cardiology, Cangzhou Central Hospital, Cangzhou, China
| | - Wei Zhang
- Department of Cardiology, Cangzhou Central Hospital, Cangzhou, China
| | - Jian-Guo Yang
- Department of Cardiology, Cangzhou Central Hospital, Cangzhou, China
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24
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Lee SY, Long F. Notch signaling suppresses glucose metabolism in mesenchymal progenitors to restrict osteoblast differentiation. J Clin Invest 2018; 128:5573-5586. [PMID: 30284985 DOI: 10.1172/jci96221] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 10/02/2018] [Indexed: 01/02/2023] Open
Abstract
Notch signaling critically controls cell fate decisions in mammals, both during embryogenesis and in adults. In the skeleton, Notch suppresses osteoblast differentiation and sustains bone marrow mesenchymal progenitors during postnatal life. Stabilizing mutations of Notch2 cause Hajdu-Cheney syndrome, which is characterized by early-onset osteoporosis in humans, but the mechanism whereby Notch inhibits bone accretion is not fully understood. Here, we report that activation of Notch signaling by either Jagged1 or the Notch2 intracellular domain suppresses glucose metabolism and osteoblast differentiation in primary cultures of bone marrow mesenchymal progenitors. Importantly, deletion of Notch2 in the limb mesenchyme increases both glycolysis and bone formation in the long bones of postnatal mice, whereas pharmacological reduction of glycolysis abrogates excessive bone formation. Mechanistically, Notch reduces the expression of glycolytic and mitochondrial complex I genes, resulting in a decrease in mitochondrial respiration, superoxide production, and AMPK activity. Forced activation of AMPK restores glycolysis in the face of Notch signaling. Thus, suppression of glucose metabolism contributes to the mechanism, whereby Notch restricts osteoblastogenesis from bone marrow mesenchymal progenitors.
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Affiliation(s)
| | - Fanxin Long
- Department of Orthopaedic Surgery, and.,Department of Developmental Biology, Washington University School of Medicine, St. Louis, Missouri, USA
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25
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Chen YN, Dai JJ, Wu CF, Zhang SS, Sun LW, Zhang DF. Apoptosis and developmental capacity of vitrified parthenogenetic pig blastocysts. Anim Reprod Sci 2018; 198:137-144. [PMID: 30279027 DOI: 10.1016/j.anireprosci.2018.09.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 08/21/2018] [Accepted: 09/18/2018] [Indexed: 12/13/2022]
Abstract
This study was conducted to evaluate whether the poor developmental capacity of pig embryos after vitrification was related to the occurrence of apoptosis. Parthenogenetic blastocysts were used as the research material. The blastocoel recovery rate, mitochondrial membrane potential (ΔΨm), amount of early apoptosis, activities of several caspases, and relative abundance of mRNA of apoptosis-related genes involved in mitochondria and death receptor apoptotic pathways were detected before or after vitrification. The results indicate that the blastocoel recovery rate (31.0%) and total cells (31.8) of vitrified blastocysts were less than those of fresh blastocysts (100% and 38.2, P < 0.05). The ΔΨm of vitrified blastocysts was 0.46, which was less than that of fresh blastocysts (1.02, P < 0.05). The rate of apoptotic cells in vitrified blastocysts (8.1%) after TUNEL (TdT-mediated dUTP Nick-End Labeling) assay was markedly greater than that in fresh blastocysts (3.9%, P < 0.05). The pan-caspase, caspase-3, caspase-8 and caspase-9 activities of vitrified blastocysts (20.7, 20.6, 17.6 and 19.9) were markedly greater than those of fresh blastocysts (7.4, 6.5, 5.5 and 6.3, P < 0.05). The real-time PCR results indicated that relative abundance of caspase-8 and TNF-α mRNA from death receptor apoptotic pathway and caspase-9 for the mitochondrial apoptotic pathway genes in the vitrified group were greater than those in the fresh group P < 0.05). The relative abundance of Bcl-2 and SOD-1 mRNA for the mitochondrial pathway genes in the vitrified group was less than those in the fresh group (P < 0.05). In conclusion, the poor developmental capacity of vitrified parthenogenetic pig blastocysts was closely related with apoptosis. Both mitochondria and death receptor-mediated apoptotic pathways participated the occurrence of this apoptosis.
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Affiliation(s)
- Ya-Ning Chen
- Institute of Animal Science and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China; Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai, China
| | - Jian-Jun Dai
- Institute of Animal Science and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China; Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai, China; Shanghai Engineering Research Center of Breeding Pig, Shanghai, China.
| | - Cai-Feng Wu
- Institute of Animal Science and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China; Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai, China; Shanghai Engineering Research Center of Breeding Pig, Shanghai, China
| | - Shu-Shan Zhang
- Institute of Animal Science and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China; Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai, China; Shanghai Engineering Research Center of Breeding Pig, Shanghai, China
| | - Ling-Wei Sun
- Institute of Animal Science and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China; Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai, China; Shanghai Engineering Research Center of Breeding Pig, Shanghai, China
| | - De-Fu Zhang
- Institute of Animal Science and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China; Division of Animal Genetic Engineering, Shanghai Municipal Key Laboratory of Agri-Genetics and Breeding, Shanghai, China; Shanghai Engineering Research Center of Breeding Pig, Shanghai, China.
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26
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Ozay EI, Sherman HL, Mello V, Trombley G, Lerman A, Tew GN, Yadava N, Minter LM. Rotenone Treatment Reveals a Role for Electron Transport Complex I in the Subcellular Localization of Key Transcriptional Regulators During T Helper Cell Differentiation. Front Immunol 2018; 9:1284. [PMID: 29930555 PMCID: PMC5999735 DOI: 10.3389/fimmu.2018.01284] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 05/22/2018] [Indexed: 01/19/2023] Open
Abstract
Recent advances in our understanding of tumor cell mitochondrial metabolism suggest it may be an attractive therapeutic target. Mitochondria are central hubs of metabolism that provide energy during the differentiation and maintenance of immune cell phenotypes. Mitochondrial membranes harbor several enzyme complexes that are involved in the process of oxidative phosphorylation, which takes place during energy production. Data suggest that, among these enzyme complexes, deficiencies in electron transport complex I may differentially affect immune responses and may contribute to the pathophysiology of several immunological conditions. Once activated by T cell receptor signaling, along with co-stimulation through CD28, CD4 T cells utilize mitochondrial energy to differentiate into distinct T helper (Th) subsets. T cell signaling activates Notch1, which is cleaved from the plasma membrane to generate its intracellular form (N1ICD). In the presence of specific cytokines, Notch1 regulates gene transcription related to cell fate to modulate CD4 Th type 1, Th2, Th17, and induced regulatory T cell (iTreg) differentiation. The process of differentiating into any of these subsets requires metabolic energy, provided by the mitochondria. We hypothesized that the requirement for mitochondrial metabolism varies between different Th subsets and may intersect with Notch1 signaling. We used the organic pesticide rotenone, a well-described complex I inhibitor, to assess how compromised mitochondrial integrity impacts CD4 T cell differentiation into Th1, Th2, Th17, and iTreg cells. We also investigated how Notch1 localization and downstream transcriptional capabilities regulation may be altered in each subset following rotenone treatment. Our data suggest that mitochondrial integrity impacts each of these Th subsets differently, through its influence on Notch1 subcellular localization. Our work further supports the notion that altered immune responses can result from complex I inhibition. Therefore, understanding how mitochondrial inhibitors affect immune responses may help to inform therapeutic approaches to cancer treatment.
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Affiliation(s)
- Emrah Ilker Ozay
- Molecular and Cellular Biology Graduate Program, University of Massachusetts Amherst, Amherst, MA, United States
| | - Heather L Sherman
- Molecular and Cellular Biology Graduate Program, University of Massachusetts Amherst, Amherst, MA, United States
| | - Victoria Mello
- Department of Veterinary and Animal Sciences, University of Massachusetts Amherst, Amherst, MA, United States
| | - Grace Trombley
- Department of Biochemistry and Molecular Biology, University of Massachusetts Amherst, Amherst, MA, United States
| | - Adam Lerman
- Department of Microbiology, University of Massachusetts Amherst, Amherst, MA, United States
| | - Gregory N Tew
- Molecular and Cellular Biology Graduate Program, University of Massachusetts Amherst, Amherst, MA, United States.,Department of Veterinary and Animal Sciences, University of Massachusetts Amherst, Amherst, MA, United States.,Department of Polymer Science and Engineering, University of Massachusetts Amherst, Amherst, MA, United States
| | - Nagendra Yadava
- Molecular and Cellular Biology Graduate Program, University of Massachusetts Amherst, Amherst, MA, United States.,Department of Biology, University of Massachusetts Amherst, Amherst, MA, United States.,Pioneer Valley Life Sciences Institute, Springfield, MA, United States
| | - Lisa M Minter
- Molecular and Cellular Biology Graduate Program, University of Massachusetts Amherst, Amherst, MA, United States.,Department of Veterinary and Animal Sciences, University of Massachusetts Amherst, Amherst, MA, United States
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27
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Dunphy MPS, Harding JJ, Venneti S, Zhang H, Burnazi EM, Bromberg J, Omuro AM, Hsieh JJ, Mellinghoff IK, Staton K, Pressl C, Beattie BJ, Zanzonico PB, Gerecitano JF, Kelsen DP, Weber W, Lyashchenko SK, Kung HF, Lewis JS. In Vivo PET Assay of Tumor Glutamine Flux and Metabolism: In-Human Trial of 18F-(2S,4R)-4-Fluoroglutamine. Radiology 2018; 287:667-675. [PMID: 29388903 DOI: 10.1148/radiol.2017162610] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Purpose To assess the clinical safety, pharmacokinetics, and tumor imaging characteristics of fluorine 18-(2S,4R)-4-fluoroglutamine (FGln), a glutamine analog radiologic imaging agent. Materials and Methods This study was approved by the institutional review board and conducted under a U.S. Food and Drug Administration-approved Investigational New Drug application in accordance with the Helsinki Declaration and the Health Insurance Portability and Accountability Act. All patients provided written informed consent. Between January 2013 and October 2016, 25 adult patients with cancer received an intravenous bolus of FGln tracer (mean, 244 MBq ± 118, <100 μg) followed by positron emission tomography (PET) and blood radioassays. Patient data were summarized with descriptive statistics. FGln biodistribution and plasma amino acid levels in nonfasting patients (n = 13) were compared with those from patients who fasted at least 8 hours before injection (n = 12) by using nonparametric one-way analysis of variance with Bonferroni correction. Tumor FGln avidity versus fluorodeoxyglucose (FDG) avidity in patients with paired PET scans (n = 15) was evaluated with the Fisher exact test. P < .05 was considered indicative of a statistically significant difference. Results FGln PET depicted tumors of different cancer types (breast, pancreas, renal, neuroendocrine, lung, colon, lymphoma, bile duct, or glioma) in 17 of the 25 patients, predominantly clinically aggressive tumors with genetic mutations implicated in abnormal glutamine metabolism. Acute fasting had no significant effect on FGln biodistribution and plasma amino acid levels. FGln-avid tumors were uniformly FDG-avid but not vice versa (P = .07). Patients experienced no adverse effects. Conclusion Preliminary human FGln PET trial results provide clinical validation of abnormal glutamine metabolism as a potential tumor biomarker for targeted radiotracer imaging in several different cancer types. © RSNA, 2018 Online supplemental material is available for this article. Clinical trial registration no. NCT01697930.
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Affiliation(s)
- Mark P S Dunphy
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
| | - James J Harding
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
| | - Sriram Venneti
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
| | - Hanwen Zhang
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
| | - Eva M Burnazi
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
| | - Jacqueline Bromberg
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
| | - Antonio M Omuro
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
| | - James J Hsieh
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
| | - Ingo K Mellinghoff
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
| | - Kevin Staton
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
| | - Christina Pressl
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
| | - Bradley J Beattie
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
| | - Pat B Zanzonico
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
| | - John F Gerecitano
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
| | - David P Kelsen
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
| | - Wolfgang Weber
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
| | - Serge K Lyashchenko
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
| | - Hank F Kung
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
| | - Jason S Lewis
- From the Department of Radiology (M.P.S.D., W.W., J.S.L.), Department of Medicine (J.J.H., J.B., A.M.O., J.J.H., I.K.M., J.F.G., D.P.K.), Radiochemistry and Molecular Imaging Probe Core (H.Z., E.M.B., S.K.L., J.S.L.), and Department of Medical Physics (B.J.B., P.B.Z.), Memorial Sloan-Kettering Cancer Center, 1275 York Ave, Room S113E, New York, NY 10065; Molecular Pharmacology and Chemistry Program, Sloan Kettering Institute, New York, NY (H.Z., K.S., J.S.L.); Department of Radiology, Weill-Cornell Medical College, New York, NY (M.P.S.D., W.W., J.S.L.); Laboratory of Neural Systems, the Rockefeller University, New York, NY (C.P.); Department of Pathology, University of Michigan, Ann Arbor, Mich (S.V.); and Departments of Radiology and Pharmacology, University of Pennsylvania, Philadelphia, Pa (H.F.K.)
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He W, Liu Y, Tian X. Rosuvastatin Improves Neurite Outgrowth of Cortical Neurons against Oxygen-Glucose Deprivation via Notch1-mediated Mitochondrial Biogenesis and Functional Improvement. Front Cell Neurosci 2018; 12:6. [PMID: 29387001 PMCID: PMC5776084 DOI: 10.3389/fncel.2018.00006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 01/05/2018] [Indexed: 11/26/2022] Open
Abstract
Neurogenesis, especially neurite outgrowth is an essential element of neuroplasticity after cerebral ischemic injury. Mitochondria may supply ATP to power fundamental developmental processes including neuroplasticity. Although rosuvastatin (RSV) displays a potential protective effect against cerebral ischemia, it remains unknown whether it modulates mitochondrial biogenesis and function during neurite outgrowth. Here, the oxygen-glucose deprivation (OGD) model was used to induce ischemic injury. We demonstrate that RSV treatment significantly increases neurite outgrowth in cortical neurons after OGD-induced damage. Moreover, we show that RSV reduces the generation of reactive oxygen species (ROS), protects mitochondrial function, and elevates the ATP levels in cortical neurons injured by OGD. In addition, we found that, under these conditions, RSV treatment increases the mitochondrial DNA (mtDNA) content and the mRNA levels of mitochondrial transcription factor A (TFAM) and nuclear respiratory factor 1 (NRF-1). Furthermore, blocking Notch1, which is expressed in primary cortical neurons, reverses the RSV-dependent induction of mitochondrial biogenesis and function under OGD conditions. Collectively, these results suggest that RSV could restore neurite outgrowth in cortical neurons damaged by OGD in vitro, by preserving mitochondrial function and improving mitochondrial biogenesis, possibly through the Notch1 pathway.
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Affiliation(s)
- Weiliang He
- Department of Neurology, Hebei General Hospital, Shijiazhuang, China
| | - Yingping Liu
- Department of Cardiology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Xiaochao Tian
- Department of Cardiology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
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Wu KH, Xiao QR, Yang Y, Xu JL, Zhang F, Liu CM, Zhang ZM, Lu YQ, Huang NP. MicroRNA-34a modulates the Notch signaling pathway in mice with congenital heart disease and its role in heart development. J Mol Cell Cardiol 2017; 114:300-308. [PMID: 29175286 DOI: 10.1016/j.yjmcc.2017.11.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 11/03/2017] [Accepted: 11/20/2017] [Indexed: 12/11/2022]
Abstract
The objective of the study was to elucidate the mechanism by which microRNA-34a (miR-34a) influences heart development and participates in the pathogenesis of congenital heart disease (CHD) by targeting NOTCH-1 through the Notch signaling pathway. Forty D7 pregnant mice were recruited for the purposes of the study and served as the CHD (n=20, successfully established as CHD model) and normal (n=20) groups. The positive expression of the NOTCH-1 protein was evaluated by means of immunohistochemistry. Embryonic endocardial cells (ECCs) were assigned into the normal, blank, negative control (NC), miR-34a mimics, miR-34a inhibitors, miR-34a inhibitors+siRNA-NOTCH-1, siRNA-NOTCH-1, miR-34a mimics+NOTCH-1 OE and miR-34a mimics+crispr/cas9 (mutant NOTCH-1) groups. The expressions of miR-34a, NOTCH-1, Jagged1, Hes1, Hey2 and Csx in cardiac tissues and ECCs were determined by both RT-qPCR and western blotting methods. MTT assay and flow cytometry were conducted for cell proliferation and apoptosis measurement. A dual luciferase reporter assay was applied to demonstrate that NOTCH-1 was the target gene of miR-34a. In comparison to the normal group, the expressions of miR-34a, Jagged1, Hes1 and Hey2 displayed up-regulated levels, while the expressions of NOTCH-1 and Csx were down-regulated in the CHD group. Compared with the blank and NC groups, the miR-34a mimics and siRNA-NOTCH-1 groups displayed reduced expressions of NOTCH-1 and Csx as well as a decreased proliferation rate, higher miR-34a, Jagged1, Hes1 and Hey2 expressions and an increased rate of apoptosis; while an reverse trend was observed in the miR-34a inhibitors group. The expressions of MiR-34a recorded increased levels in the miR-34a mimics+NOTCH-1 OE and miR-34a mimics+crispr/cas9 (mutant NOTCH-1) groups, however no changes in the expressions of NOTCH-1, Jagged1, Hes1, Hey2, Csx, as well as cell proliferation and apoptosis were observed when compared to the blank and NC groups. The results of our study demonstrated that miR-34a increases the risk of CHD through its downregulation of NOTCH-1 by modulating the Notch signaling pathway.
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Affiliation(s)
- Kai-Hong Wu
- Cardiovascular Center, Children's Hospital of Nanjing Medical University, Nanjing 210036, PR China.
| | - Qian-Ru Xiao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, PR China
| | - Yu Yang
- Cardiovascular Center, Children's Hospital of Nanjing Medical University, Nanjing 210036, PR China
| | - Jia-Li Xu
- Cardiovascular Center, Children's Hospital of Nanjing Medical University, Nanjing 210036, PR China
| | - Feng Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, PR China
| | - Chao-Ming Liu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, PR China
| | - Zhao-Ming Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, PR China
| | - Ying-Qi Lu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, PR China
| | - Ning-Ping Huang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, PR China.
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30
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Liu WB, Xie F, Sun HQ, Meng M, Zhu ZY. Anti-tumor effect of polysaccharide from Hirsutella sinensis on human non-small cell lung cancer and nude mice through intrinsic mitochondrial pathway. Int J Biol Macromol 2017; 99:258-264. [PMID: 28235606 DOI: 10.1016/j.ijbiomac.2017.02.071] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 02/07/2017] [Accepted: 02/19/2017] [Indexed: 01/16/2023]
Abstract
Our previous works had proved the structural properties of Hirsutella sinensis polysaccharide-III(HSP-III). Herein, its anti-tumor effect on lung cancer correlated with mitochondrial apoptosis pathway was investigated. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay showed that HSP-III induces the apoptosis of H1299 cells; however the proliferation viability of normal lung epithelial cells is not affected. HSP-III treatment collapses the H1299 cell mitochondrial membrane potential, and western blot analysis of cytochrome C, Bax, caspase-3 and caspase-9 further indicates that apoptotic effects induced by HSP-III is through the mitochondrial pathway. Furthermore, we found the apoptotic effects of HSP-III are triggered by Reactive oxygen species (ROS) generation. Blue native Polyacrylamide Gel-Electrophoresis (PAGE) showed the expressions of mitochondrial respiratory chain complexes I-V were also decreased. Taken together, anti-tumor effect of HSP-III is through intrinsic mitochondrial apoptosis mechanism pathway and involving ROS increasing. Finally, in vivo nude mice experiment, HSP-III attenuated the growth of tumor compared with control. In contrast, N-acetyl-l-cysteine (NAC) could restore the cell apoptosis effects induced by HSP-III. These findings suggest that HSP-III induce apoptosis of H1299 cells and attenuated growth of nude mice tumor in vivo through the intrinsic mitochondrial pathway and stimulating ROS. HSP-III could be a composition for lung cancer treatment.
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Affiliation(s)
- Wen-Bin Liu
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Fei Xie
- School of Medicine, Yunnan University, Kunming 650091, PR China
| | - Hui-Qing Sun
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Meng Meng
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, PR China
| | - Zhen-Yuan Zhu
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, PR China.
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Slaninova V, Krafcikova M, Perez-Gomez R, Steffal P, Trantirek L, Bray SJ, Krejci A. Notch stimulates growth by direct regulation of genes involved in the control of glycolysis and the tricarboxylic acid cycle. Open Biol 2016; 6:150155. [PMID: 26887408 PMCID: PMC4772804 DOI: 10.1098/rsob.150155] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Glycolytic shift is a characteristic feature of rapidly proliferating cells, such as cells during development and during immune response or cancer cells, as well as of stem cells. It results in increased glycolysis uncoupled from mitochondrial respiration, also known as the Warburg effect. Notch signalling is active in contexts where cells undergo glycolytic shift. We decided to test whether metabolic genes are direct transcriptional targets of Notch signalling and whether upregulation of metabolic genes can help Notch to induce tissue growth under physiological conditions and in conditions of Notch-induced hyperplasia. We show that genes mediating cellular metabolic changes towards the Warburg effect are direct transcriptional targets of Notch signalling. They include genes encoding proteins involved in glucose uptake, glycolysis, lactate to pyruvate conversion and repression of the tricarboxylic acid cycle. The direct transcriptional upregulation of metabolic genes is PI3K/Akt independent and occurs not only in cells with overactivated Notch but also in cells with endogenous levels of Notch signalling and in vivo. Even a short pulse of Notch activity is able to elicit long-lasting metabolic changes resembling the Warburg effect. Loss of Notch signalling in Drosophila wing discs as well as in human microvascular cells leads to downregulation of glycolytic genes. Notch-driven tissue overgrowth can be rescued by downregulation of genes for glucose metabolism. Notch activity is able to support growth of wing during nutrient-deprivation conditions, independent of the growth of the rest of the body. Notch is active in situations that involve metabolic reprogramming, and the direct regulation of metabolic genes may be a common mechanism that helps Notch to exert its effects in target tissues.
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Affiliation(s)
- Vera Slaninova
- Faculty of Science, University of South Bohemia, Branisovska 31, 37005 Ceske Budejovice, Czech Republic Institute of Entomology, Biology Centre, Czech Academy of Sciences, 37005 Ceske Budejovice, Czech Republic
| | - Michaela Krafcikova
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Raquel Perez-Gomez
- Faculty of Science, University of South Bohemia, Branisovska 31, 37005 Ceske Budejovice, Czech Republic
| | - Pavel Steffal
- Faculty of Science, University of South Bohemia, Branisovska 31, 37005 Ceske Budejovice, Czech Republic
| | - Lukas Trantirek
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - Sarah J Bray
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge CB2 3DY, UK
| | - Alena Krejci
- Faculty of Science, University of South Bohemia, Branisovska 31, 37005 Ceske Budejovice, Czech Republic Institute of Entomology, Biology Centre, Czech Academy of Sciences, 37005 Ceske Budejovice, Czech Republic
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32
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Manerba M, Di Ianni L, Govoni M, Roberti M, Recanatini M, Di Stefano G. Lactate dehydrogenase inhibitors can reverse inflammation induced changes in colon cancer cells. Eur J Pharm Sci 2016; 96:37-44. [PMID: 27622920 DOI: 10.1016/j.ejps.2016.09.014] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 09/08/2016] [Accepted: 09/09/2016] [Indexed: 11/17/2022]
Abstract
The inflammatory microenvironment is an essential component of neoplastic lesions and can significantly impact on tumor progression. Besides facilitating invasive growth, inflammatory cytokines were also found to reprogram cancer cell metabolism and to induce aerobic glycolysis. Previous studies did not consider the possible contribution played in these changes by lactate dehydrogenase (LDH). The A isoform of LDH (LDH-A) is the master regulator of aerobic glycolysis; it actively reduces pyruvate and causes enhanced lactate levels in tumor tissues. In cancer cells, lactate was recently found to directly increase migration ability; moreover, when released in the microenvironment, it can facilitate matrix remodeling. In this paper, we illustrate that treatment of human colon adenocarcinoma cells with TNF-α and IL-17, two pro-inflammatory cytokines, modifies LDH activity, causing a shift toward the A isoform which results in increased lactate production. At the same time, the two cytokines appeared to induce features of epithelial-mesenchymal transition in the treated cells, such as reduction of E-cadherin levels and increased secretion of metalloproteinases. Noteworthy, oxamate and galloflavin, two inhibitors of LDH activity which reduce lactate production in cells, were found to relieve the inflammation-induced effects. These results suggest LDH-A and/or lactate as common elements at the cross-road between cancer cell metabolism, tumor progression and inflammation. At present, LDH inhibitors suitable for clinical use are actively searched as possible anti-proliferative agents; our data lead to hypothesize for these compounds a wider potential in anticancer treatment.
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Affiliation(s)
- Marcella Manerba
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Italy
| | - Lorenza Di Ianni
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Italy
| | - Marzia Govoni
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Italy
| | - Marinella Roberti
- Department of Pharmacy and Biotechnology (FABIT), University of Bologna, Italy
| | - Maurizio Recanatini
- Department of Pharmacy and Biotechnology (FABIT), University of Bologna, Italy
| | - Giuseppina Di Stefano
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Italy.
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Pei H, Du J, Song X, He L, Zhang Y, Li X, Qiu C, Zhang Y, Hou J, Feng J, Gao E, Li D, Yang Y. Melatonin prevents adverse myocardial infarction remodeling via Notch1/Mfn2 pathway. Free Radic Biol Med 2016; 97:408-417. [PMID: 27387769 DOI: 10.1016/j.freeradbiomed.2016.06.015] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 06/04/2016] [Accepted: 06/16/2016] [Indexed: 01/17/2023]
Abstract
Mitochondrial dysfunction is linked with myocardial infarction (MI), a disorder in which Notch1 has attracted increasing attention. However, the involvement of Notch1 in mitochondrial impairment after an MI is poorly understood, as is the role of mitochondrial fusion-associated protein 2 (Mfn2). Moreover, whether melatonin potentiates the Notch1/Mfn2 pathway in post-MI cardiac damage remains unclear. In our study, small interfering RNAs against Notch1 or Mfn2 and Jagged1 peptide were delivered via intramyocardial injection. At 3 days after these treatments, MI was induced by ligation of the anterior descending branch. We found that this ablation of Notch1 or Mfn2 aggravated post-MI injury, including worsened mitochondrial damage and increased generation of reactive oxygen species (ROS). In contrast, Jagged1 improved mitochondrial structure and function, decreased ROS production and attenuated post-MI injury. Interestingly, though Mfn2 expression was mildly regulated by Notch1 signaling in myocardium, Mfn2 deficiency nearly eliminated the cardioprotection by Jagged1, as evidenced by suppressed cardiac function, aggravated myocardial fibrosis, increased cell apoptosis, worsened mitochondrial impairment and enhanced oxidative stress. These observations revealed that Mfn2 plays an indispensable role in protection against MI-induced injury by Notch1. The mechanism might involve disrupting a damaging cycle of mitochondrial damage and ROS generation. Furthermore, melatonin activated Notch1 signaling and increased Mfn2 expression were reversed by luzindole, a nonselective antagonist of the melatonin receptor. Notably, melatonin attenuated post-MI injury in normal mice, but not in mice deficient in Notch1 or Mfn2. These results demonstrate that melatonin attenuates post-MI injury via the Notch1/Mfn2 pathway in a receptor-dependent manner.
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Affiliation(s)
- Haifeng Pei
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China; Third Military Medical University, Chongqing 400042, China
| | - Jin Du
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China
| | - Xiaofeng Song
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China
| | - Lei He
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China
| | - Yufei Zhang
- Department of Medical Genetics and Developmental Biology, School of Basic Medicine, Fourth Military Medical University, Xi'an 710032, China
| | - Xiuchuan Li
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China
| | - Chenming Qiu
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China
| | - Yangyang Zhang
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Juanni Hou
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China
| | - Juan Feng
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China
| | - Erhe Gao
- Center of Translational Medicine, Temple University School of Medicine, Philadelphia, PA 19140, USA
| | - De Li
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China
| | - Yongjian Yang
- Department of Cardiology, Chengdu Military General Hospital, Chengdu 610083, China; Third Military Medical University, Chongqing 400042, China.
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Yang H, Sun W, Quan N, Wang L, Chu D, Cates C, Liu Q, Zheng Y, Li J. Cardioprotective actions of Notch1 against myocardial infarction via LKB1-dependent AMPK signaling pathway. Biochem Pharmacol 2016; 108:47-57. [PMID: 27015742 DOI: 10.1016/j.bcp.2016.03.019] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 03/21/2016] [Indexed: 12/31/2022]
Abstract
AMP-activated protein kinase (AMPK) signaling pathway plays a pivotal role in intracellular adaptation to energy stress during myocardial ischemia. Notch1 signaling in the adult myocardium is also activated in response to ischemic stress. However, the relationship between Notch1 and AMPK signaling pathways during ischemia remains unclear. We hypothesize that Notch1 as an adaptive signaling pathway protects the heart from ischemic injury via modulating the cardioprotective AMPK signaling pathway. C57BL/6J mice were subjected to an in vivo ligation of left anterior descending coronary artery and the hearts from C57BL/6J mice were subjected to an ex vivo globe ischemia and reperfusion in the Langendorff perfusion system. The Notch1 signaling was activated during myocardial ischemia. A Notch1 γ-secretase inhibitor, dibenzazepine (DBZ), was intraperitoneally injected into mice to inhibit Notch1 signaling pathway by ischemia. The inhibition of Notch1 signaling by DBZ significantly augmented cardiac dysfunctions caused by myocardial infarction. Intriguingly, DBZ treatment also significantly blunted the activation of AMPK signaling pathway. The immunoprecipitation experiments demonstrated that an interaction between Notch1 and liver kinase beta1 (LKB1) modulated AMPK activation during myocardial ischemia. Furthermore, a ligand of Notch1 Jagged1 can significantly reduce cardiac damage caused by ischemia via activation of AMPK signaling pathway and modulation of glucose oxidation and fatty acid oxidation during ischemia and reperfusion. But Jagged1 did not have any cardioprotections on AMPK kinase dead transgenic hearts. Taken together, the results indicate that the cardioprotective effect of Notch1 against ischemic damage is mediated by AMPK signaling via an interaction with upstream LKB1.
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Affiliation(s)
- Hui Yang
- Department of Pathology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China; Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, United States
| | - Wanqing Sun
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, United States; The First Affiliated Hospital, Jilin University, Changchun 130012, China
| | - Nanhu Quan
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, United States; The First Affiliated Hospital, Jilin University, Changchun 130012, China
| | - Lin Wang
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, United States; The First Affiliated Hospital, Jilin University, Changchun 130012, China
| | - Dongyang Chu
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, United States
| | - Courtney Cates
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, United States
| | - Quan Liu
- The First Affiliated Hospital, Jilin University, Changchun 130012, China
| | - Yang Zheng
- The First Affiliated Hospital, Jilin University, Changchun 130012, China
| | - Ji Li
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, United States.
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Bottoni P, Isgrò MA, Scatena R. The epithelial-mesenchymal transition in cancer: a potential critical topic for translational proteomic research. Expert Rev Proteomics 2015; 13:115-33. [PMID: 26567562 DOI: 10.1586/14789450.2016.1112742] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The epithelial-mesenchymal transition (EMT) is a morphogenetic process that results in a loss of epithelial characteristics and the acquisition of a mesenchymal phenotype. First described in embryogenesis, the EMT has been recently implicated in carcinogenesis and tumor progression. In addition, recent evidence has shown that stem-like cancer cells present the hallmarks of the EMT. Some of the molecular mechanisms related to the interrelationships between cancer pathophysiology and the EMT are well-defined. Nevertheless, the precise molecular mechanism by which epithelial cancer cells acquire the mesenchymal phenotype remains largely unknown. This review focuses on various proteomic strategies with the goal of better understanding the physiological and pathological mechanisms of the EMT process.
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Affiliation(s)
- Patrizia Bottoni
- a Institute of Biochemistry and Clinical Biochemistry , School of Medicine - Catholic University , Rome , Italy
| | - Maria Antonietta Isgrò
- b Department of Diagnostic and Molecular Medicine , Catholic University of the Sacred Heart , Rome , Italy
| | - Roberto Scatena
- a Institute of Biochemistry and Clinical Biochemistry , School of Medicine - Catholic University , Rome , Italy
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36
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Kahlert UD, Cheng M, Koch K, Marchionni L, Fan X, Raabe EH, Maciaczyk J, Glunde K, Eberhart CG. Alterations in cellular metabolome after pharmacological inhibition of Notch in glioblastoma cells. Int J Cancer 2015; 138:1246-55. [PMID: 26422827 DOI: 10.1002/ijc.29873] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Revised: 09/04/2015] [Accepted: 09/17/2015] [Indexed: 12/18/2022]
Abstract
Notch signaling can promote tumorigenesis in the nervous system and plays important roles in stem-like cancer cells. However, little is known about how Notch inhibition might alter tumor metabolism, particularly in lesions arising in the brain. The gamma-secretase inhibitor MRK003 was used to treat glioblastoma neurospheres, and they were subdivided into sensitive and insensitive groups in terms of canonical Notch target response. Global metabolomes were then examined using proton magnetic resonance spectroscopy, and changes in intracellular concentration of various metabolites identified which correlate with Notch inhibition. Reductions in glutamate were verified by oxidation-based colorimetric assays. Interestingly, the alkylating chemotherapeutic agent temozolomide, the mTOR-inhibitor MLN0128, and the WNT inhibitor LGK974 did not reduce glutamate levels, suggesting that changes to this metabolite might reflect specific downstream effects of Notch blockade in gliomas rather than general sequelae of tumor growth inhibition. Global and targeted expression analyses revealed that multiple genes important in glutamate homeostasis, including glutaminase, are dysregulated after Notch inhibition. Treatment with an allosteric inhibitor of glutaminase, compound 968, could slow glioblastoma growth, and Notch inhibition may act at least in part by regulating glutaminase and glutamate.
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Affiliation(s)
- Ulf D Kahlert
- Department of Pathology, Division of Neuropathology, Johns Hopkins Hospital, Baltimore, MD.,Department of Neurosurgery, University Medical Center, Forschungsgebaeude Pathologie, Düsseldorf, Germany
| | - Menglin Cheng
- Division of Cancer Imaging Research, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Hospital, Baltimore, MD
| | - Katharina Koch
- Department of Neurosurgery, University Medical Center, Forschungsgebaeude Pathologie, Düsseldorf, Germany
| | - Luigi Marchionni
- Department of Oncology, Johns Hopkins Hospital, Baltimore, MD.,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Xing Fan
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI.,Department of Cell and Developmental Biology, University of Michigan, Ann Arbor, MI
| | - Eric H Raabe
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD.,Department of Pediatric Oncology, Johns Hopkins Hospital, Baltimore, MD
| | - Jarek Maciaczyk
- Department of Neurosurgery, University Medical Center, Forschungsgebaeude Pathologie, Düsseldorf, Germany
| | - Kristine Glunde
- Division of Cancer Imaging Research, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Hospital, Baltimore, MD.,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Charles G Eberhart
- Department of Pathology, Division of Neuropathology, Johns Hopkins Hospital, Baltimore, MD
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Abstract
Vitiligo is an acquired depigmenting disorder that affects 0.5% to 2% of the world population. Three different forms are classified according to the distribution of lesions; namely non-segmental, segmental and mixed vitiligo. Vitiligo is associated with polymorphisms in genes involved in the immune response and in melanogenesis. However, environmental factors are required for the development of manifest disease. In general, the diagnosis is clinical and no laboratory tests or biopsies are required. Metabolic alterations are central to current concepts in pathophysiology. They induce an increased generation of reactive oxygen species and susceptibility to mild exogenous stimuli in the epidermis. This produces a senescent phenotype of skin cells, leads to the release of innate immune molecules, which trigger autoimmunity, and ultimately causes dysfunction and death of melanocytes. Clinical management aims to halt depigmentation, and to either repigment or depigment the skin, depending on the extent of disease. New therapeutic approaches include stimulation of melanocyte differentiation and proliferation through α-melanocyte-stimulating hormone analogues and through epidermal stem cell engineering. Several questions remain unsolved, including the connection between melanocyte depletion and stem cell exhaustion, the underlying degenerative mechanisms and the biological mediators of cell death. Overall, vitiligo is an excellent model for studying degenerative and autoimmune processes and for testing novel approaches in regenerative medicine. For an illustrated summary of this Primer, visit: http://go.nature.com/vIhFSC.
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Affiliation(s)
- Mauro Picardo
- Cutaneous Physiopathology, San Gallicano Dermatologic Institute, IFO IRCCS, via Elio Chianesi 53, 00144 Rome, Italy
| | - Maria L Dell'Anna
- Cutaneous Physiopathology, San Gallicano Dermatologic Institute, IFO IRCCS, via Elio Chianesi 53, 00144 Rome, Italy
| | - Khaled Ezzedine
- Service de Dermatologie et Dermatologie Pédiatrique, Centre de référence pour les maladies rares de la peau, INSERM 1035, Université de Bordeaux, Bordeaux, France
| | - Iltefat Hamzavi
- Multicultural Dermatology Center, Department of Dermatology, Henry Ford Hospital Detroit, Michigan, USA
| | - John E Harris
- Division of Dermatology, Department of Medicine, University of Massachusetts Medical School, Worcester, USA
| | | | - Alain Taieb
- Service de Dermatologie et Dermatologie Pédiatrique, Centre de référence pour les maladies rares de la peau, INSERM 1035, Université de Bordeaux, Bordeaux, France
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Mils V, Bosch S, Roy J, Bel-Vialar S, Belenguer P, Pituello F, Miquel MC. Mitochondrial reshaping accompanies neural differentiation in the developing spinal cord. PLoS One 2015; 10:e0128130. [PMID: 26020522 PMCID: PMC4447341 DOI: 10.1371/journal.pone.0128130] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 04/22/2015] [Indexed: 11/19/2022] Open
Abstract
Mitochondria, long known as the cell powerhouses, also regulate redox signaling and arbitrate cell survival. The organelles are now appreciated to exert additional critical roles in cell state transition from a pluripotent to a differentiated state through balancing glycolytic and respiratory metabolism. These metabolic adaptations were recently shown to be concomitant with mitochondrial morphology changes and are thus possibly regulated by contingencies of mitochondrial dynamics. In this context, we examined, for the first time, mitochondrial network plasticity during the transition from proliferating neural progenitors to post-mitotic differentiating neurons. We found that mitochondria underwent morphological reshaping in the developing neural tube of chick and mouse embryos. In the proliferating population, mitochondria in the mitotic cells lying at the apical side were very small and round, while they appeared thick and short in interphase cells. In differentiating neurons, mitochondria were reorganized into a thin, dense network. This reshaping of the mitochondrial network was not specific of a subtype of progenitors or neurons, suggesting that this is a general event accompanying neurogenesis in the spinal cord. Our data shed new light on the various changes occurring in the mitochondrial network during neurogenesis and suggest that mitochondrial dynamics could play a role in the neurogenic process.
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Affiliation(s)
- Valérie Mils
- Universités de Toulouse, Centre de Biologie du Développement, CNRS UMR5547, Université Paul Sabatier, Toulouse, France
| | - Stéphanie Bosch
- Universités de Toulouse, Centre de Biologie du Développement, CNRS UMR5547, Université Paul Sabatier, Toulouse, France
| | - Julie Roy
- Universités de Toulouse, Centre de Biologie du Développement, CNRS UMR5547, Université Paul Sabatier, Toulouse, France
| | - Sophie Bel-Vialar
- Universités de Toulouse, Centre de Biologie du Développement, CNRS UMR5547, Université Paul Sabatier, Toulouse, France
| | - Pascale Belenguer
- Universités de Toulouse, Centre de Biologie du Développement, CNRS UMR5547, Université Paul Sabatier, Toulouse, France
| | - Fabienne Pituello
- Universités de Toulouse, Centre de Biologie du Développement, CNRS UMR5547, Université Paul Sabatier, Toulouse, France
| | - Marie-Christine Miquel
- Universités de Toulouse, Centre de Biologie du Développement, CNRS UMR5547, Université Paul Sabatier, Toulouse, France
- UPMC Université Pierre et Marie Curie, Sorbonne Universités, Paris, France
- * E-mail:
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39
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Mitochondrial dependency in progression of acute myeloid leukemia. Mitochondrion 2015; 21:41-8. [PMID: 25640960 DOI: 10.1016/j.mito.2015.01.006] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 10/23/2014] [Accepted: 01/21/2015] [Indexed: 11/20/2022]
Abstract
Acute myeloid leukemia (AML) is a clonal hematopoietic malignant disorder which arises due to dysregulated differentiation, uncontrolled growth and inhibition of apoptosis leading to the accumulation of immature myeloid progenitor in the bone marrow. The heterogeneity of the disease at the molecular and cytogenetic level has led to the identification of several alteration of biological and clinical significance. One of the alterations which have gained attention in recent times is the altered energy and metabolic dependency of cancer originally proposed by Warburg. Mitochondria are important cell organelles regulating cellular energetic level, metabolism and apoptosis which in turn can affect cell proliferation and differentiation, the major manifestations of diseases like AML. In recent times the importance of mitochondrial generated ATP and mitochondrial localized metabolic pathways has been shown to play important role in the progression of AML. These studies have also demonstrated the clinical significance of mitochondrial targets for its effectiveness in combating relapsed or refractory AML. Here we review the importance of the mitochondrial dependency for the progression of AML and the emergence of the mitochondrial molecular targets which holds therapeutic importance.
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40
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Franco C, Hess S. Recent proteomic advances in developmental, regeneration, and cancer governing signaling pathways. Proteomics 2014; 15:1014-25. [PMID: 25316175 DOI: 10.1002/pmic.201400368] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 09/16/2014] [Accepted: 10/09/2014] [Indexed: 12/12/2022]
Abstract
Embryonic development, adult tissue repair, and cancer share a number of common regulating pathways. The basic processes that govern the events that induce mesenchymal properties in epithelial cells-a process known as epithelial-mesenchymal transition-are central for embryonic development, and can be resumed in adults either during wound healing or tissue regeneration. A misregulation of these pathways is involved in pathological situations, such as tissue fibrosis and cancer. Proteomic approaches have emerged as promising tools to better understand the signaling pathways that govern these complex biological processes. This review focuses on the recent proteomic-based contributions to better understand the modulation of transforming growth factor-beta (TGF-β), wingless-type MMTV integration site family (Wnt), Notch and Receptor tyrosine kinase (RTK) signaling pathways. New advances include the description of new protein interactions, the formation of new protein complexes or the description on how some PTMs are regulating these pathways. Understanding protein interactions and the tempo-spatial modulation of these pathways might lead us to interesting research quests in cancer, embryonic development or even on improving adult tissue regeneration capabilities.
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Affiliation(s)
- Catarina Franco
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Oeiras, Portugal
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Rostama B, Peterson SM, Vary CPH, Liaw L. Notch signal integration in the vasculature during remodeling. Vascul Pharmacol 2014; 63:97-104. [PMID: 25464152 PMCID: PMC4304902 DOI: 10.1016/j.vph.2014.10.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 10/06/2014] [Accepted: 10/10/2014] [Indexed: 02/06/2023]
Abstract
Notch signaling plays many important roles in homeostasis and remodeling in the vessel wall, and serves a critical role in the communication between endothelial cells and smooth muscle cells. Within blood vessels, Notch signaling integrates with multiple pathways by mechanisms including direct protein–protein interaction, cooperative or synergistic regulation of signal cascades, and co-regulation of transcriptional targets. After establishment of the mature blood vessel, the spectrum and intensity of Notch signaling change during phases of active remodeling or disease progression. These changes can be mediated by regulation via microRNAs and protein stability or signaling, and corresponding changes in complementary signaling pathways. Notch also affects endothelial cells on a system level by regulating key metabolic components. This review will outline the most recent findings of Notch activity in blood vessels, with a focus on how Notch signals integrate with other molecular signaling pathways controlling vascular phenotype.
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Affiliation(s)
- Bahman Rostama
- Center for Molecular Medicine, Maine Medical Center Research Institute, USA
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42
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Kasahara A, Scorrano L. Mitochondria: from cell death executioners to regulators of cell differentiation. Trends Cell Biol 2014; 24:761-70. [PMID: 25189346 DOI: 10.1016/j.tcb.2014.08.005] [Citation(s) in RCA: 308] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 07/23/2014] [Accepted: 08/14/2014] [Indexed: 01/12/2023]
Abstract
Most, if not all mitochondrial functions, including adenosine-5'-triphosphate (ATP) production and regulation of apoptosis and Ca(2+) homeostasis, are inextricably linked to mitochondrial morphology and dynamics, a process controlled by a family of GTP-dependent dynamin related 'mitochondria-shaping' proteins. Mitochondrial fusion and fission directly influence mitochondrial metabolism, apoptotic and necrotic cell death, autophagy, muscular atrophy and cell migration. In this review, we discuss the recent evidence indicating that mitochondrial dynamics influence complex signaling pathways, affect gene expression and define cell differentiation. These findings extend the importance of mitochondria to developmental biology, far beyond their mere bioenergetic role.
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Affiliation(s)
- Atsuko Kasahara
- Department of Pathology and Immunology, University of Geneva, 1211 Geneva, Switzerland
| | - Luca Scorrano
- Department of Biology, University of Padua, 35121 Padua, Italy; Dulbecco-Telethon Institute, Venetian Institute of Molecular Medicine, 35129 Padua, Italy.
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