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Eirin A, Thaler R, Glasstetter LM, Xing L, Zhu XY, Osborne AC, Mondesir R, Bhagwate AV, Lerman A, van Wijnen AJ, Lerman LO. Obesity-driven mitochondrial dysfunction in human adipose tissue-derived mesenchymal stem/stromal cells involves epigenetic changes. Cell Death Dis 2024; 15:387. [PMID: 38824145 PMCID: PMC11144257 DOI: 10.1038/s41419-024-06774-8] [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: 08/30/2023] [Revised: 05/22/2024] [Accepted: 05/24/2024] [Indexed: 06/03/2024]
Abstract
Obesity exacerbates tissue degeneration and compromises the integrity and reparative potential of mesenchymal stem/stromal cells (MSCs), but the underlying mechanisms have not been sufficiently elucidated. Mitochondria modulate the viability, plasticity, proliferative capacity, and differentiation potential of MSCs. We hypothesized that alterations in the 5-hydroxymethylcytosine (5hmC) profile of mitochondria-related genes may mediate obesity-driven dysfunction of human adipose-derived MSCs. MSCs were harvested from abdominal subcutaneous fat of obese and age/sex-matched non-obese subjects (n = 5 each). The 5hmC profile and expression of nuclear-encoded mitochondrial genes were examined by hydroxymethylated DNA immunoprecipitation sequencing (h MeDIP-seq) and mRNA-seq, respectively. MSC mitochondrial structure (electron microscopy) and function, metabolomics, proliferation, and neurogenic differentiation were evaluated in vitro, before and after epigenetic modulation. hMeDIP-seq identified 99 peaks of hyper-hydroxymethylation and 150 peaks of hypo-hydroxymethylation in nuclear-encoded mitochondrial genes from Obese- versus Non-obese-MSCs. Integrated hMeDIP-seq/mRNA-seq analysis identified a select group of overlapping (altered levels of both 5hmC and mRNA) nuclear-encoded mitochondrial genes involved in ATP production, redox activity, cell proliferation, migration, fatty acid metabolism, and neuronal development. Furthermore, Obese-MSCs exhibited decreased mitochondrial matrix density, membrane potential, and levels of fatty acid metabolites, increased superoxide production, and impaired neuronal differentiation, which improved with epigenetic modulation. Obesity elicits epigenetic changes in mitochondria-related genes in human adipose-derived MSCs, accompanied by structural and functional changes in their mitochondria and impaired fatty acid metabolism and neurogenic differentiation capacity. These observations may assist in developing novel therapies to preserve the potential of MSCs for tissue repair and regeneration in obese individuals.
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Grants
- AG062104 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- DK122734 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- R56 DK129240 NIDDK NIH HHS
- DK129240 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- R01 DK129240 NIDDK NIH HHS
- HL158691 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- DK120292 U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (NHLBI)
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Affiliation(s)
- Alfonso Eirin
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Roman Thaler
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | | | - Li Xing
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
- Department of Urology, The Affiliated Zhongda Hospital, Southeast University, Nanjing, China
| | - Xiang-Yang Zhu
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | - Andrew C Osborne
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Ronscardy Mondesir
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | - Aditya V Bhagwate
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Amir Lerman
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | | | - Lilach O Lerman
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA.
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA.
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2
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Wang Y, Jiang S, Chen X, Liu X, Li N, Nie Y, Lu G. Comparison of developmental toxicity of benzophenone-3 and its metabolite benzophenone-8 in zebrafish. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 258:106515. [PMID: 37011548 DOI: 10.1016/j.aquatox.2023.106515] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 03/28/2023] [Accepted: 03/29/2023] [Indexed: 06/19/2023]
Abstract
Benzophenone-3 (BP-3) as one of frequently used organic UV filters has been considered an emerging pollutant due to its toxicities. Benzophenone-8 (BP-8) is one of the main metabolites of BP-3 in organisms. Current reports show that BP-8 may be more toxic than BP-3. However, difference of their toxicities on embryonic development has rarely been reported. In this study, zebrafish embryos were chosen as the target organism to explore the developmental toxicities of BP-3 and BP-8. Non-targeted metabolomic analysis was performed to compare their modes of action. Results showed that BP-8 exposures led to higher bioaccumulation and lower hatching rate of zebrafish larvae than BP-3. Both BP-8 and BP-3 exposures caused behavioral abnormalities of zebrafish larvae, but no significant difference was found between them. At the metabolome level, 1 μg/L BP-3 and 1 μg/L BP-8 exposures altered neuroactive ligand-receptor interaction pathway and FoxO signaling pathway, respectively, which might be involved in the abnormal behaviors in zebrafish larvae. For higher exposure groups (30 and 300 μg/L), both BP-3 and BP-8 exposures changed metabolism of cofactors and vitamins of zebrafish larvae. Exposure of BP-3 altered the metabolism by pantothenate and CoA biosynthesis pathway, while BP-8 exposure changed riboflavin metabolism and folate biosynthesis. The above results indicated different modes of action of BP-3 and BP-8 in zebrafish embryonic development. This study sheds new light to biological hazards of BP-3 due to its metabolism in aquatic organisms.
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Affiliation(s)
- Yonghua Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China.
| | - Shengnan Jiang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Xi Chen
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Xiaodan Liu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Na Li
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Yang Nie
- Hangzhou Hydrology and Water Resources Monitoring Center, Hangzhou 310016, PR China.
| | - Guanghua Lu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
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3
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Cavestro C, Diodato D, Tiranti V, Di Meo I. Inherited Disorders of Coenzyme A Biosynthesis: Models, Mechanisms, and Treatments. Int J Mol Sci 2023; 24:ijms24065951. [PMID: 36983025 PMCID: PMC10054636 DOI: 10.3390/ijms24065951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/09/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
Coenzyme A (CoA) is a vital and ubiquitous cofactor required in a vast number of enzymatic reactions and cellular processes. To date, four rare human inborn errors of CoA biosynthesis have been described. These disorders have distinct symptoms, although all stem from variants in genes that encode enzymes involved in the same metabolic process. The first and last enzymes catalyzing the CoA biosynthetic pathway are associated with two neurological conditions, namely pantothenate kinase-associated neurodegeneration (PKAN) and COASY protein-associated neurodegeneration (CoPAN), which belong to the heterogeneous group of neurodegenerations with brain iron accumulation (NBIA), while the second and third enzymes are linked to a rapidly fatal dilated cardiomyopathy. There is still limited information about the pathogenesis of these diseases, and the knowledge gaps need to be resolved in order to develop potential therapeutic approaches. This review aims to provide a summary of CoA metabolism and functions, and a comprehensive overview of what is currently known about disorders associated with its biosynthesis, including available preclinical models, proposed pathomechanisms, and potential therapeutic approaches.
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Affiliation(s)
- Chiara Cavestro
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20126 Milan, Italy
| | - Daria Diodato
- Unit of Muscular and Neurodegenerative Disorders, Ospedale Pediatrico Bambino Gesù, 00165 Rome, Italy
| | - Valeria Tiranti
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20126 Milan, Italy
| | - Ivano Di Meo
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20126 Milan, Italy
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Baker MJ, Crameri JJ, Thorburn DR, Frazier AE, Stojanovski D. Mitochondrial biology and dysfunction in secondary mitochondrial disease. Open Biol 2022; 12:220274. [PMID: 36475414 PMCID: PMC9727669 DOI: 10.1098/rsob.220274] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Mitochondrial diseases are a broad, genetically heterogeneous class of metabolic disorders characterized by deficits in oxidative phosphorylation (OXPHOS). Primary mitochondrial disease (PMD) defines pathologies resulting from mutation of mitochondrial DNA (mtDNA) or nuclear genes affecting either mtDNA expression or the biogenesis and function of the respiratory chain. Secondary mitochondrial disease (SMD) arises due to mutation of nuclear-encoded genes independent of, or indirectly influencing OXPHOS assembly and operation. Despite instances of novel SMD increasing year-on-year, PMD is much more widely discussed in the literature. Indeed, since the implementation of next generation sequencing (NGS) techniques in 2010, many novel mitochondrial disease genes have been identified, approximately half of which are linked to SMD. This review will consolidate existing knowledge of SMDs and outline discrete categories within which to better understand the diversity of SMD phenotypes. By providing context to the biochemical and molecular pathways perturbed in SMD, we hope to further demonstrate the intricacies of SMD pathologies outside of their indirect contribution to mitochondrial energy generation.
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Affiliation(s)
- Megan J. Baker
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria 3052, Australia
| | - Jordan J. Crameri
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria 3052, Australia
| | - David R. Thorburn
- Murdoch Children's Research Institute, Royal Children's Hospital and Department of Paediatrics, University of Melbourne, Parkville, Victoria 3052, Australia,Victorian Clinical Genetics Services, Royal Children's Hospital, Parkville, Victoria 3052, Australia
| | - Ann E. Frazier
- Murdoch Children's Research Institute, Royal Children's Hospital and Department of Paediatrics, University of Melbourne, Parkville, Victoria 3052, Australia
| | - Diana Stojanovski
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria 3052, Australia
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Chatzimitakos T, Chousidis I, Leonardos D, Stalikas C, Leonardos I. In the Swim of Cannabis: Developmental Toxicity and Metabolomic Pathway Alterations of Zebrafish Larvae Exposed to THC for the Assessment of Its Potential Environmental and Human Health Impact. Molecules 2022; 27:molecules27175506. [PMID: 36080275 PMCID: PMC9458094 DOI: 10.3390/molecules27175506] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/15/2022] [Accepted: 08/15/2022] [Indexed: 11/16/2022] Open
Abstract
As the pharmacological properties and therapeutic applications of Cannabis sativa L. pace with the upsurge of interest of the scientific community in harnessing its constituent phytocannabinoids, illicit use may raise serious health issues. Tetrahydrocannabinol (THC) is one of the most well-known phytoactive constituents of cannabis and continues to garner scientific and public attention not only because of its pharmacological value but also because over-the-counter products of THC and prescription medications are becoming increasingly available from pharmacies, dispensaries, Internet, local retail stores, or by illicit means. Hence, a multidimensional approach was employed to examine the impact of THC on zebrafish larvae. The acute toxicity, expressed as LC50, was 1.54 mg/L. Adverse effects were observed on the phenotype, such as tail bending, pericardial edema, etc., even at concentrations lower than LC50, and fundamental functions of larvae (e.g., heart rate and cardiac contractility, and rhythm) were significantly affected. Behavioral changes were noticed, which were reflected in locomotor activity and sensitivity to light/dark changes. Finally, an untargeted metabolomic study was carried out to shed light on the metabolic alterations that occurred, providing substantiating evidence of the observed phenotype alterations. Overall, the potentially detrimental effects of THC on a vertebrate model are depicted.
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Affiliation(s)
- Theodoros Chatzimitakos
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece
| | - Ieremias Chousidis
- Laboratory of Zoology, Biological Applications and Technology Department, University of Ioannina, 45110 Ioannina, Greece
| | | | - Constantine Stalikas
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece
- Correspondence:
| | - Ioannis Leonardos
- Laboratory of Zoology, Biological Applications and Technology Department, University of Ioannina, 45110 Ioannina, Greece
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6
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Pro-Angiogenetic Effects of Purified Extracts from Helix aspersa during Zebrafish Development. Curr Issues Mol Biol 2022; 44:3364-3377. [PMID: 36005128 PMCID: PMC9406997 DOI: 10.3390/cimb44080232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/16/2022] [Accepted: 07/23/2022] [Indexed: 11/17/2022] Open
Abstract
Helix aspersa is a species of land snail belonging to the Helicidae family, widespread in the Mediterranean and continental area up to Northern Europe. In some areas it is appreciated as a food, but is mostly considered a parasite of gardens and cultivated fields. The mucus of Helix aspersa has found multiple applications in the cosmetic and health fields. In the present study, we investigated for the first time the angiogenetic properties of purified extracts from Helix aspersa using a transgenic zebrafish line Tg (kdrl:EGFP). The angiogenesis induced by purified snail extracts was demonstrated by their capability to increase the three well-established parameters of angiogenesis: generation of intersegmental vessels, modeling of caudal venous plexus, and formation of sub-intestinal venous plexus. The effects appeared to be mediated by the vascular endothelial growth factor (VEGF) pathway, being prevented by pretreatment of embryos with the selective VEGF receptor antagonist SU5416, and supported by the increased VEGF mRNA levels found in snail-extract-treated embryos. Insufficient vascular supply is underlined by low VEGF signaling, primarily because of its indispensable role in preventing capillary loss. Our findings might have a pharmacological impact by counteracting VEGF hypofunction and promoting angiogenesis to maintain adequate microvascular and vascular density in normal and suffering tissues and organs.
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7
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Coenzyme A precursors flow from mother to zygote and from microbiome to host. Mol Cell 2022; 82:2650-2665.e12. [PMID: 35662397 DOI: 10.1016/j.molcel.2022.05.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 02/09/2022] [Accepted: 05/05/2022] [Indexed: 01/01/2023]
Abstract
Coenzyme A (CoA) is essential for metabolism and protein acetylation. Current knowledge holds that each cell obtains CoA exclusively through biosynthesis via the canonical five-step pathway, starting with pantothenate uptake. However, recent studies have suggested the presence of additional CoA-generating mechanisms, indicating a more complex system for CoA homeostasis. Here, we uncovered pathways for CoA generation through inter-organismal flows of CoA precursors. Using traceable compounds and fruit flies with a genetic block in CoA biosynthesis, we demonstrate that progeny survive embryonal and early larval development by obtaining CoA precursors from maternal sources. Later in life, the microbiome can provide the essential CoA building blocks to the host, enabling continuation of normal development. A flow of stable, long-lasting CoA precursors between living organisms is revealed. This indicates the presence of complex strategies to maintain CoA homeostasis.
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8
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Cerebral Iron Deposition in Neurodegeneration. Biomolecules 2022; 12:biom12050714. [PMID: 35625641 PMCID: PMC9138489 DOI: 10.3390/biom12050714] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/12/2022] [Accepted: 05/13/2022] [Indexed: 02/04/2023] Open
Abstract
Disruption of cerebral iron regulation appears to have a role in aging and in the pathogenesis of various neurodegenerative disorders. Possible unfavorable impacts of iron accumulation include reactive oxygen species generation, induction of ferroptosis, and acceleration of inflammatory changes. Whole-brain iron-sensitive magnetic resonance imaging (MRI) techniques allow the examination of macroscopic patterns of brain iron deposits in vivo, while modern analytical methods ex vivo enable the determination of metal-specific content inside individual cell-types, sometimes also within specific cellular compartments. The present review summarizes the whole brain, cellular, and subcellular patterns of iron accumulation in neurodegenerative diseases of genetic and sporadic origin. We also provide an update on mechanisms, biomarkers, and effects of brain iron accumulation in these disorders, focusing on recent publications. In Parkinson’s disease, Friedreich’s disease, and several disorders within the neurodegeneration with brain iron accumulation group, there is a focal siderosis, typically in regions with the most pronounced neuropathological changes. The second group of disorders including multiple sclerosis, Alzheimer’s disease, and amyotrophic lateral sclerosis shows iron accumulation in the globus pallidus, caudate, and putamen, and in specific cortical regions. Yet, other disorders such as aceruloplasminemia, neuroferritinopathy, or Wilson disease manifest with diffuse iron accumulation in the deep gray matter in a pattern comparable to or even more extensive than that observed during normal aging. On the microscopic level, brain iron deposits are present mostly in dystrophic microglia variably accompanied by iron-laden macrophages and in astrocytes, implicating a role of inflammatory changes and blood–brain barrier disturbance in iron accumulation. Options and potential benefits of iron reducing strategies in neurodegeneration are discussed. Future research investigating whether genetic predispositions play a role in brain Fe accumulation is necessary. If confirmed, the prevention of further brain Fe uptake in individuals at risk may be key for preventing neurodegenerative disorders.
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Coenzyme a Biochemistry: From Neurodevelopment to Neurodegeneration. Brain Sci 2021; 11:brainsci11081031. [PMID: 34439650 PMCID: PMC8392065 DOI: 10.3390/brainsci11081031] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 07/29/2021] [Accepted: 07/29/2021] [Indexed: 12/21/2022] Open
Abstract
Coenzyme A (CoA) is an essential cofactor in all living organisms. It is involved in a large number of biochemical processes functioning either as an activator of molecules with carbonyl groups or as a carrier of acyl moieties. Together with its thioester derivatives, it plays a central role in cell metabolism, post-translational modification, and gene expression. Furthermore, recent studies revealed a role for CoA in the redox regulation by the S-thiolation of cysteine residues in cellular proteins. The intracellular concentration and distribution in different cellular compartments of CoA and its derivatives are controlled by several extracellular stimuli such as nutrients, hormones, metabolites, and cellular stresses. Perturbations of the biosynthesis and homeostasis of CoA and/or acyl-CoA are connected with several pathological conditions, including cancer, myopathies, and cardiomyopathies. In the most recent years, defects in genes involved in CoA production and distribution have been found in patients affected by rare forms of neurodegenerative and neurodevelopmental disorders. In this review, we will summarize the most relevant aspects of CoA cellular metabolism, their role in the pathogenesis of selected neurodevelopmental and neurodegenerative disorders, and recent advancements in the search for therapeutic approaches for such diseases.
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[Research advances in the pathogenesis and treatment of neurodegeneration with brain iron accumulation]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2021. [PMID: 34130790 PMCID: PMC8213993 DOI: 10.7499/j.issn.1008-8830.2103149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Neurodegeneration with brain iron accumulation (NBIA) is a group of rare neurogenetic degenerative diseases caused by genetic mutations and characterized by iron deposition in the central nervous system, especially in the basal ganglia, with an overall incidence rate of 2/1 000 000-3/1 000 000. Major clinical manifestations are extrapyramidal symptoms. This disease is presently classified into 14 different subtypes based on different pathogenic genes, and its pathogenesis and treatment remain unclear. This article summarizes the research advances in the pathogenesis and treatment of NBIA, so as to help pediatricians understand this disease and provide a reference for subsequent research on treatment.
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Basnet RM, Zizioli D, Muscò A, Finazzi D, Sigala S, Rossini E, Tobia C, Guerra J, Presta M, Memo M. Caffeine Inhibits Direct and Indirect Angiogenesis in Zebrafish Embryos. Int J Mol Sci 2021; 22:ijms22094856. [PMID: 34063734 PMCID: PMC8124397 DOI: 10.3390/ijms22094856] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 11/16/2022] Open
Abstract
In this study, we report the effects of caffeine on angiogenesis in zebrafish embryos both during normal development and after exposure to Fibroblast Growth Factor 2 (FGF2). As markers of angiogenesis, we measured the length and width of intersegmental vessels (ISVs), performed whole-mount in situ hybridization with fli1 and cadh5 vascular markers, and counted the number of interconnecting vessels (ICVs) in sub-intestinal venous plexus (SIVP). In addition, we measured angiogenesis after performing zebrafish yolk membrane (ZFYM) assay with microinjection of fibroblast growth factor 2 (FGF2) and perivitelline tumor xenograft assay with microinjection of tumorigenic FGF2-overexpressing endothelial (FGF2-T-MAE) cells. The results showed that caffeine treatment causes a shortening and thinning of ISVs along with a decreased expression of the vascular marker genes and a decrease in the number of ICVs in the SIVP. Caffeine was also able to block angiogenesis induced by exogenous FGF2 or FGF2-producing cells. Overall, our results are suggestive of the inhibitory effect of caffeine in both direct and indirect angiogenesis.
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Affiliation(s)
- Ram Manohar Basnet
- Unit of Pharmacology, DMMT, University of Brescia, 25123 Brescia, Italy; (R.M.B.); (A.M.); (S.S.); (E.R.)
| | - Daniela Zizioli
- Unit of Biotechnology, DMMT, University of Brescia, 25123 Brescia, Italy; (D.Z.); (D.F.)
| | - Alessia Muscò
- Unit of Pharmacology, DMMT, University of Brescia, 25123 Brescia, Italy; (R.M.B.); (A.M.); (S.S.); (E.R.)
| | - Dario Finazzi
- Unit of Biotechnology, DMMT, University of Brescia, 25123 Brescia, Italy; (D.Z.); (D.F.)
- Laboratorio Centrale Analisi Chimico-Cliniche, ASST Spedali Civili, 25123 Brescia, Italy
| | - Sandra Sigala
- Unit of Pharmacology, DMMT, University of Brescia, 25123 Brescia, Italy; (R.M.B.); (A.M.); (S.S.); (E.R.)
| | - Elisa Rossini
- Unit of Pharmacology, DMMT, University of Brescia, 25123 Brescia, Italy; (R.M.B.); (A.M.); (S.S.); (E.R.)
| | - Chiara Tobia
- Unit of Experimental Oncology and Immunology, DMMT, University of Brescia, 25123 Brescia, Italy; (C.T.); (J.G.); (M.P.)
| | - Jessica Guerra
- Unit of Experimental Oncology and Immunology, DMMT, University of Brescia, 25123 Brescia, Italy; (C.T.); (J.G.); (M.P.)
| | - Marco Presta
- Unit of Experimental Oncology and Immunology, DMMT, University of Brescia, 25123 Brescia, Italy; (C.T.); (J.G.); (M.P.)
| | - Maurizio Memo
- Unit of Pharmacology, DMMT, University of Brescia, 25123 Brescia, Italy; (R.M.B.); (A.M.); (S.S.); (E.R.)
- Correspondence:
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12
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Mignani L, Zizioli D, Borsani G, Monti E, Finazzi D. The Downregulation of c19orf12 Negatively Affects Neuronal and Musculature Development in Zebrafish Embryos. Front Cell Dev Biol 2021; 8:596069. [PMID: 33425903 PMCID: PMC7785858 DOI: 10.3389/fcell.2020.596069] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 11/30/2020] [Indexed: 11/13/2022] Open
Abstract
Mitochondrial membrane Protein Associated Neurodegeneration (MPAN) is a rare genetic disorder due to mutations in C19orf12 gene. In most cases, the disorder is transmitted as an autosomal recessive trait and the main clinical features are progressive spastic para/tetraparesis, dystonia, motor axonal neuropathy, parkinsonisms, psychiatric symptoms, and optic atrophy. Besides iron accumulation in the globus pallidus and substantia nigra, the neuropathology shows features also observed in Parkinson’s Disease brains, such as α-synuclein-positive Lewy bodies and hyperphosphorylated tau. Mutations in the gene have been found in other neurodegenerative disorders, including PD, hereditary spastic paraplegia, pallido-pyramidal syndrome, and amyotrophic lateral sclerosis. The biological function of C19orf12 gene is poorly defined. In humans, it codes for two protein isoforms: the longer one is present in mitochondria, endoplasmic reticulum, and contact regions between mitochondria and ER. Mutations in the gene appear to be linked to defects in mitochondrial activity, lipid metabolism and autophagy/mitophagy. To increase the available tools for the investigation of MPAN pathogenesis, we generated a new animal model in zebrafish embryos. The zebrafish genome contains four co-orthologs of human C19orf12. One of them, located on chromosome 18, is expressed at higher levels at early stages of development. We downregulated its expression by microinjecting embryos with a specific ATG-blocking morpholino, and we analyzed embryonal development. Most embryos showed morphological defects such as unsettled brain morphology, with smaller head and eyes, reduced yolk extension, tilted and thinner tail. The severity of the defects progressively increased and all injected embryos died within 7 days post fertilization. Appropriate controls confirmed the specificity of the observed phenotype. Changes in the expression and distribution of neural markers documented a defective neuronal development, particularly evident in the eyes, the optic tectum, the midbrain-hindbrain boundary; Rohon Beard and dorsal root ganglia neurons were also affected. Phalloidin staining evidenced a significant perturbation of musculature formation that was associated with defective locomotor behavior. These data are consistent with the clinical features of MPAN and support the validity of the model to investigate the pathogenesis of the disease and evaluate molecules with potential therapeutic effect.
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Affiliation(s)
- Luca Mignani
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Daniela Zizioli
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Giuseppe Borsani
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Eugenio Monti
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Dario Finazzi
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy.,Laboratory of Clinical Chemistry, Azienda Socio Sanitaria Territoriale (ASST) Spedali Civili di Brescia, Brescia, Italy
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Di Meo I, Cavestro C, Pedretti S, Fu T, Ligorio S, Manocchio A, Lavermicocca L, Santambrogio P, Ripamonti M, Levi S, Ayciriex S, Mitro N, Tiranti V. Neuronal Ablation of CoA Synthase Causes Motor Deficits, Iron Dyshomeostasis, and Mitochondrial Dysfunctions in a CoPAN Mouse Model. Int J Mol Sci 2020; 21:ijms21249707. [PMID: 33352696 PMCID: PMC7766928 DOI: 10.3390/ijms21249707] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 12/15/2020] [Accepted: 12/17/2020] [Indexed: 12/11/2022] Open
Abstract
COASY protein-associated neurodegeneration (CoPAN) is a rare but devastating genetic autosomal recessive disorder of inborn error of CoA metabolism, which shares with pantothenate kinase-associated neurodegeneration (PKAN) similar features, such as dystonia, parkinsonian traits, cognitive impairment, axonal neuropathy, and brain iron accumulation. These two disorders are part of the big group of neurodegenerations with brain iron accumulation (NBIA) for which no effective treatment is available at the moment. To date, the lack of a mammalian model, fully recapitulating the human disorder, has prevented the elucidation of pathogenesis and the development of therapeutic approaches. To gain new insights into the mechanisms linking CoA metabolism, iron dyshomeostasis, and neurodegeneration, we generated and characterized the first CoPAN disease mammalian model. Since CoA is a crucial metabolite, constitutive ablation of the Coasy gene is incompatible with life. On the contrary, a conditional neuronal-specific Coasy knock-out mouse model consistently developed a severe early onset neurological phenotype characterized by sensorimotor defects and dystonia-like movements, leading to premature death. For the first time, we highlighted defective brain iron homeostasis, elevation of iron, calcium, and magnesium, together with mitochondrial dysfunction. Surprisingly, total brain CoA levels were unchanged, and no signs of neurodegeneration were present.
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Affiliation(s)
- Ivano Di Meo
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20126 Milan, Italy; (C.C.); (A.M.); (L.L.)
- Correspondence: (I.D.M.); (V.T.)
| | - Chiara Cavestro
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20126 Milan, Italy; (C.C.); (A.M.); (L.L.)
| | - Silvia Pedretti
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, 20133 Milan, Italy; (S.P.); (S.L.); (N.M.)
| | - Tingting Fu
- Institut des Sciences Analytiques, Univ Lyon, CNRS, Université Claude Bernard Lyon 1, UMR 5280, 5 rue de la Doua, F-69100 Villeurbanne, France; (T.F.); (S.A.)
| | - Simona Ligorio
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, 20133 Milan, Italy; (S.P.); (S.L.); (N.M.)
| | - Antonello Manocchio
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20126 Milan, Italy; (C.C.); (A.M.); (L.L.)
| | - Lucrezia Lavermicocca
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20126 Milan, Italy; (C.C.); (A.M.); (L.L.)
| | - Paolo Santambrogio
- Division of Neuroscience, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (P.S.); (M.R.); (S.L.)
| | - Maddalena Ripamonti
- Division of Neuroscience, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (P.S.); (M.R.); (S.L.)
- Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Sonia Levi
- Division of Neuroscience, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (P.S.); (M.R.); (S.L.)
- Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Sophie Ayciriex
- Institut des Sciences Analytiques, Univ Lyon, CNRS, Université Claude Bernard Lyon 1, UMR 5280, 5 rue de la Doua, F-69100 Villeurbanne, France; (T.F.); (S.A.)
| | - Nico Mitro
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, 20133 Milan, Italy; (S.P.); (S.L.); (N.M.)
| | - Valeria Tiranti
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20126 Milan, Italy; (C.C.); (A.M.); (L.L.)
- Correspondence: (I.D.M.); (V.T.)
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Khatri D, Mignani L, Zizioli D, Ritelli M, Monti E, Finazzi D. Abnormal Vasculature Development in Zebrafish Embryos with Reduced Expression of Pantothenate Kinase 2 Gene. Bull Exp Biol Med 2020; 170:58-63. [PMID: 33237527 DOI: 10.1007/s10517-020-05004-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Indexed: 10/22/2022]
Abstract
Mutations in pank2 gene encoding pantothenate kinase 2 determine a pantothenate kinase-associated neurodegeneration, a rare disorder characterized by iron deposition in the globus pallidus. To extend our previous work, we performed microinjections of a new pank2-specific morpholino to zebrafish embryos and thoroughly analyzed vasculature development. Vessels development was severely perturbed in the head, trunk, and tail, where blood accumulation was remarkable and associated with dilation of the posterior cardinal vein. This phenotype was specific as confirmed by p53 expression analysis and injection of the same morpholino in pank2-mutant embryos. We can conclude that pank2 gene is involved in vasculature development in zebrafish embryos. The comprehension of the underlining mechanisms could be of relevance for understanding of pantothenate kinase-associated neurodegeneration.
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Affiliation(s)
- D Khatri
- Section of Biotechnology, Brescia, Italy
| | - L Mignani
- Section of Biotechnology, Brescia, Italy
| | - D Zizioli
- Section of Biotechnology, Brescia, Italy.
| | - M Ritelli
- Section of Biology and Genetics, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - E Monti
- Section of Biotechnology, Brescia, Italy
| | - D Finazzi
- Section of Biotechnology, Brescia, Italy
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15
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Hinarejos I, Machuca C, Sancho P, Espinós C. Mitochondrial Dysfunction, Oxidative Stress and Neuroinflammation in Neurodegeneration with Brain Iron Accumulation (NBIA). Antioxidants (Basel) 2020; 9:antiox9101020. [PMID: 33092153 PMCID: PMC7589120 DOI: 10.3390/antiox9101020] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/16/2020] [Accepted: 10/17/2020] [Indexed: 12/13/2022] Open
Abstract
The syndromes of neurodegeneration with brain iron accumulation (NBIA) encompass a group of invalidating and progressive rare diseases that share the abnormal accumulation of iron in the basal ganglia. The onset of NBIA disorders ranges from infancy to adulthood. Main clinical signs are related to extrapyramidal features (dystonia, parkinsonism and choreoathetosis), and neuropsychiatric abnormalities. Ten NBIA forms are widely accepted to be caused by mutations in the genes PANK2, PLA2G6, WDR45, C19ORF12, FA2H, ATP13A2, COASY, FTL1, CP, and DCAF17. Nonetheless, many patients remain without a conclusive genetic diagnosis, which shows that there must be additional as yet undiscovered NBIA genes. In line with this, isolated cases of known monogenic disorders, and also, new genetic diseases, which present with abnormal brain iron phenotypes compatible with NBIA, have been described. Several pathways are involved in NBIA syndromes: iron and lipid metabolism, mitochondrial dynamics, and autophagy. However, many neurodegenerative conditions share features such as mitochondrial dysfunction and oxidative stress, given the bioenergetics requirements of neurons. This review aims to describe the existing link between the classical ten NBIA forms by examining their connection with mitochondrial impairment as well as oxidative stress and neuroinflammation.
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Affiliation(s)
- Isabel Hinarejos
- Unit of Genetics and Genomics of Neuromuscular and Neurodegenerative Disorders, Centro de Investigación Príncipe Felipe (CIPF), 46012 Valencia, Spain; (I.H.); (C.M.); (P.S.)
- Rare Diseases Joint Units, CIPF-IIS La Fe & INCLIVA, 46012 Valencia, Spain
| | - Candela Machuca
- Unit of Genetics and Genomics of Neuromuscular and Neurodegenerative Disorders, Centro de Investigación Príncipe Felipe (CIPF), 46012 Valencia, Spain; (I.H.); (C.M.); (P.S.)
- Rare Diseases Joint Units, CIPF-IIS La Fe & INCLIVA, 46012 Valencia, Spain
- Unit of Stem Cells Therapies in Neurodegenerative Diseases, Centro de Investigación Príncipe Felipe (CIPF), 46012 Valencia, Spain
| | - Paula Sancho
- Unit of Genetics and Genomics of Neuromuscular and Neurodegenerative Disorders, Centro de Investigación Príncipe Felipe (CIPF), 46012 Valencia, Spain; (I.H.); (C.M.); (P.S.)
- Rare Diseases Joint Units, CIPF-IIS La Fe & INCLIVA, 46012 Valencia, Spain
| | - Carmen Espinós
- Unit of Genetics and Genomics of Neuromuscular and Neurodegenerative Disorders, Centro de Investigación Príncipe Felipe (CIPF), 46012 Valencia, Spain; (I.H.); (C.M.); (P.S.)
- Rare Diseases Joint Units, CIPF-IIS La Fe & INCLIVA, 46012 Valencia, Spain
- Department of Genetics, University of Valencia, 46100 Valencia, Spain
- Correspondence: ; Tel.: +34-963-289-680
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Zhao Y, Chen H, Li C, Chen S, Xiao H. Comparative Transcriptomics Reveals the Molecular Genetic Basis of Cave Adaptability in Sinocyclocheilus Fish Species. Front Ecol Evol 2020. [DOI: 10.3389/fevo.2020.589039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Cavefish evolved a series of distinct survival mechanisms for adaptation to cave habitat. Such mechanisms include loss of eyesight and pigmentation, sensitive sensory organs, unique dietary preferences, and predation behavior. Thus, it is of great interest to understand the mechanisms underlying these adaptability traits of troglobites. The teleost genus Sinocyclocheilus (Cypriniformes: Cyprinidae) is endemic to China and has more than 70 species reported (including over 30 cavefish species). High species diversity and diverse phenotypes make the Sinocyclocheilus as an outstanding model for studying speciation and adaptive evolution. In this study, we conducted a comparative transcriptomics study on the brain tissues of two Sinocyclocheilus species (surface-dwelling species – Sinocyclocheilus malacopterus and semi-cave-dwelling species – Sinocyclocheilus rhinocerous living in the same water body. A total of 425,188,768 clean reads were generated, which contributed to 102,839 Unigenes. Bioinformatic analysis revealed a total of 3,289 differentially expressed genes (DEGs) between two species Comparing to S. malacopterus, 2,598 and 691 DEGs were found to be respectively, down-regulated and up-regulated in S. rhinocerous. Furthermore, it is also found tens of DEGs related to cave adaptability such as insulin secretion regulation (MafA, MafB, MafK, BRSK, and CDK16) and troglomorphic traits formation (CEP290, nmnat1, coasy, and pqbp1) in the cave-dwelling S. rhinocerous. Interestingly, most of the DEGs were found to be down-regulated in cavefish species and this trend of DEGs expression was confirmed through qPCR experiments. This study would provide an appropriate genetic basis for future studies on the formation of troglomorphic traits and adaptability characters of troglobites, and improve our understanding of mechanisms of cave adaptation.
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17
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Bertolini F, Jørgensen MGP, Henkel C, Dufour S, Tomkiewicz J. Unravelling the changes during induced vitellogenesis in female European eel through RNA-Seq: What happens to the liver? PLoS One 2020; 15:e0236438. [PMID: 32790680 PMCID: PMC7425897 DOI: 10.1371/journal.pone.0236438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 07/06/2020] [Indexed: 11/24/2022] Open
Abstract
The life cycle of European eel (Anguilla anguilla), a catadromous species, is complex and enigmatic. In nature, during the silvering process prior to their long spawning migration, reproductive development is arrested, and they cease feeding. In studies of reproduction using hormonal induction, eels are equivalently not feed. Therefore, in female eels that undergo vitellogenesis, the liver plays different, essential roles being involved both in vitellogenins synthesis and in reallocating resources for the maintenance of vital functions, performing the transoceanic reproductive migration and completing reproductive development. The present work aimed at unravelling the major transcriptomic changes that occur in the liver during induced vitellogenesis in female eels. mRNA-Seq data from 16 animals (eight before induced vitellogenesis and eight after nine weeks of hormonal treatment) were generated and differential expression analysis was performed comparing the two groups. This analysis detected 1,328 upregulated and 1,490 downregulated transcripts. Overrepresentation analysis of the upregulated genes included biological processes related to biosynthesis, response to estrogens, mitochondrial activity and localization, while downregulated genes were enriched in processes related to morphogenesis and development of several organs and tissues, including liver and immune system. Among key genes, the upregulated ones included vitellogenin genes (VTG1 and VTG2) that are central in vitellogenesis, together with ESR1 and two novel genes not previously investigated in European eel (LMAN1 and NUPR1), which have been linked with reproduction in other species. Moreover, several upregulated genes, such as CYC1, ELOVL5, KARS and ACSS1, are involved in the management of the effect of fasting and NOTCH, VEGFA and NCOR are linked with development, autophagy and liver maintenance in other species. These results increase the understanding of the molecular changes that occur in the liver during vitellogenesis in this complex and distinctive fish species, bringing new insights on European eel reproduction and broodstock management.
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Affiliation(s)
- Francesca Bertolini
- National Institute of Aquatic Resources, Technical University of Denmark, Lyngby, Denmark
- * E-mail:
| | | | - Christiaan Henkel
- Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Oslo, Norway
| | - Sylvie Dufour
- Laboratory BOREA, Museum National d’Histoire Naturelle, CNRS, Sorbonne University, Paris, France
| | - Jonna Tomkiewicz
- National Institute of Aquatic Resources, Technical University of Denmark, Lyngby, Denmark
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Kharabsheh HA, Scott JE. CoAsy knockdown in TNBC cell lines resulted in no overt effect on cell proliferation in vitro. Biochem Biophys Res Commun 2020; 530:136-141. [PMID: 32828275 DOI: 10.1016/j.bbrc.2020.06.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 06/05/2020] [Indexed: 12/17/2022]
Abstract
Triple-negative breast cancer (TNBC) remains the most challenging breast cancer subtype to treat. CoA synthase (CoAsy) is a bifunctional enzyme, encoded by the COASY gene, which catalyzes the last two steps of CoA biosynthesis. COASY has been reported as a hit in several large RNAi library screens for cancer. Therefore, we sought to investigate the dependency of TNBC cell line proliferation on CoAsy expression. Initially, knockdown of CoAsy expression was achieved by RNAi and reduced proliferation was observed in two TNBC cell lines, HCC1806 and MDA-MB-231. To further investigate the role of CoAsy, we established stable inducible shRNA cell lines from the same TNBC cell lines as well as the normal-like breast cell line MCF10A. Three separate cell lines, each expressing one of three different shRNA constructs targeting COASY, and a non-targeted shRNA control cell line were generated from each parent cell line. The induction of COASY shRNA for 4 days resulted in >99% knockdown of CoAsy for all three COASY shRNA constructs. However, this robust knockdown of CoAsy protein expression had no detectable impact on cell growth with 4-day induction times. Even 8-day induction times resulted in no apparent impact on cell growth. There was also no effect of CoAsy knockdown on the rate of cell migration. Measurement of CoA levels in cell lysates indicated that CoAsy knockdown reduced CoA to approximately half the normal level. Thus, CoAsy knockdown showed no detectable effect on the in vitro proliferation and migration of these cell lines possibly due to the cell's ability to maintain adequate levels of CoA through some unknown mechanism.
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Affiliation(s)
- Hamzah A Kharabsheh
- Department of Pharmaceutical Sciences, Biomanufacturing Research Institute and Technology Enterprise (BRITE), North Carolina Central University, Durham, NC, USA.
| | - John E Scott
- Department of Pharmaceutical Sciences, Biomanufacturing Research Institute and Technology Enterprise (BRITE), North Carolina Central University, Durham, NC, USA.
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19
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Costanzo M, Caterino M, Cevenini A, Jung V, Chhuon C, Lipecka J, Fedele R, Guerrera IC, Ruoppolo M. Proteomics Reveals that Methylmalonyl-CoA Mutase Modulates Cell Architecture and Increases Susceptibility to Stress. Int J Mol Sci 2020; 21:ijms21144998. [PMID: 32679819 PMCID: PMC7403994 DOI: 10.3390/ijms21144998] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/10/2020] [Accepted: 07/13/2020] [Indexed: 12/12/2022] Open
Abstract
Methylmalonic acidemia (MMA) is a rare inborn error of metabolism caused by deficiency of the methylmalonyl-CoA mutase (MUT) enzyme. Downstream MUT deficiency, methylmalonic acid accumulates together with toxic metabolites from propionyl-CoA and other compounds upstream of the block in the enzyme pathway. The presentation is with life-threatening acidosis, respiratory distress, brain disturbance, hyperammonemia, and ketosis. Survivors develop poorly understood multi-organ damage, notably to the brain and kidneys. The HEK 293 cell line was engineered by CRISPR/Cas9 technology to knock out the MUT gene (MUT-KO). Shotgun label-free quantitative proteomics and bioinformatics analyses revealed potential damaging biological processes in MUT-deficient cells. MUT-KO induced alteration of cellular architecture and morphology, and ROS overproduction. We found the alteration of proteins involved in cytoskeleton and cell adhesion organization, cell trafficking, mitochondrial, and oxidative processes, as validated by the regulation of VIM, EXT2, SDC2, FN1, GLUL, and CHD1. Additionally, a cell model of MUT-rescuing was developed in order to control the specificity of MUT-KO effects. Globally, the proteomic landscape of MUT-KO suggests the cell model to have an increased susceptibility to propionate- and H2O2-induced stress through an impairment of the mitochondrial functionality and unbalances in the oxidation-reduction processes.
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Affiliation(s)
- Michele Costanzo
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy; (M.C.); (M.C.); (A.C.)
- CEINGE—Biotecnologie Avanzate s.c.ar.l., 80145 Naples, Italy;
| | - Marianna Caterino
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy; (M.C.); (M.C.); (A.C.)
- CEINGE—Biotecnologie Avanzate s.c.ar.l., 80145 Naples, Italy;
| | - Armando Cevenini
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy; (M.C.); (M.C.); (A.C.)
- CEINGE—Biotecnologie Avanzate s.c.ar.l., 80145 Naples, Italy;
| | - Vincent Jung
- Proteomics Platform Necker, Université de Paris—Structure Fédérative de Recherche Necker, Inserm US24/CNRS UMS3633, 75015 Paris, France; (V.J.); (C.C.); (J.L.)
| | - Cerina Chhuon
- Proteomics Platform Necker, Université de Paris—Structure Fédérative de Recherche Necker, Inserm US24/CNRS UMS3633, 75015 Paris, France; (V.J.); (C.C.); (J.L.)
| | - Joanna Lipecka
- Proteomics Platform Necker, Université de Paris—Structure Fédérative de Recherche Necker, Inserm US24/CNRS UMS3633, 75015 Paris, France; (V.J.); (C.C.); (J.L.)
| | - Roberta Fedele
- CEINGE—Biotecnologie Avanzate s.c.ar.l., 80145 Naples, Italy;
| | - Ida Chiara Guerrera
- Proteomics Platform Necker, Université de Paris—Structure Fédérative de Recherche Necker, Inserm US24/CNRS UMS3633, 75015 Paris, France; (V.J.); (C.C.); (J.L.)
- Correspondence: (I.C.G.); (M.R.); Tel.: +39-081-373-7850 (M.R.)
| | - Margherita Ruoppolo
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy; (M.C.); (M.C.); (A.C.)
- CEINGE—Biotecnologie Avanzate s.c.ar.l., 80145 Naples, Italy;
- Correspondence: (I.C.G.); (M.R.); Tel.: +39-081-373-7850 (M.R.)
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20
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Bagwe-Parab S, Kaur G. Molecular targets and therapeutic interventions for iron induced neurodegeneration. Brain Res Bull 2020; 156:1-9. [DOI: 10.1016/j.brainresbull.2019.12.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 12/14/2019] [Accepted: 12/17/2019] [Indexed: 01/17/2023]
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Ferrandon S, DeVecchio J, Duraes L, Chouhan H, Karagkounis G, Davenport J, Orloff M, Liska D, Kalady MF. CoA Synthase ( COASY) Mediates Radiation Resistance via PI3K Signaling in Rectal Cancer. Cancer Res 2019; 80:334-346. [PMID: 31704889 DOI: 10.1158/0008-5472.can-19-1161] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 09/11/2019] [Accepted: 11/05/2019] [Indexed: 12/18/2022]
Abstract
Neoadjuvant radiation is standard of care for locally advanced rectal cancer. Response to radiation is highly variable and directly linked with survival. However, there currently are no validated biomarkers or molecular targets to predict or improve radiation response, which would help develop personalized treatment and ideally targeted therapies. Here, we identified a novel biomarker, coenzyme A synthase (COASY), whose mRNA expression was consistently elevated in radioresistant human rectal cancers. This observation was validated in independent patient cohorts and further confirmed in colorectal cancer cell lines. Importantly, genetic overexpression and knockdown yielded radioresistant and sensitive phenotypes, respectively, in vitro and in vivo. COASY-knockdown xenografts were more vulnerable to radiation, showing delayed tumor growth, decreased proliferation, and increased apoptosis. Mechanistically, COASY protein directly interacted with the PI3K regulatory subunit PI3K-P85α, which increased AKT and mTOR phosphorylation, enhancing cell survival. Furthermore, shRNA COASY knockdown disrupted downstream PI3K pathway activation and also hindered DNA double-strand break repair, which both led to improved radiosensitivity. Collectively, this work reveals for the first time the biological relevance of COASY as a predictive rectal cancer biomarker for radiation response and offers mechanistic evidence to support COASY as a potential therapeutic target. SIGNIFICANCE: COASY is a novel radiotherapy response modulator in rectal cancer that regulates PI3K activation and DNA repair. Furthermore, COASY levels directly correlate with radiation response and serve as a predictive biomarker.
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Affiliation(s)
- Sylvain Ferrandon
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Jennifer DeVecchio
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Leonardo Duraes
- Department of Colorectal Surgery, Digestive Disease and Surgery Institute, Cleveland Clinic, Cleveland, Ohio
| | - Hanumant Chouhan
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Georgios Karagkounis
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
- Department of Colorectal Surgery, Digestive Disease and Surgery Institute, Cleveland Clinic, Cleveland, Ohio
| | - Jacqueline Davenport
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Matthew Orloff
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - David Liska
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
- Department of Colorectal Surgery, Digestive Disease and Surgery Institute, Cleveland Clinic, Cleveland, Ohio
| | - Matthew F Kalady
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio.
- Department of Colorectal Surgery, Digestive Disease and Surgery Institute, Cleveland Clinic, Cleveland, Ohio
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Wang ZB, Liu JY, Xu XJ, Mao XY, Zhang W, Zhou HH, Liu ZQ. Neurodegeneration with brain iron accumulation: Insights into the mitochondria dysregulation. Biomed Pharmacother 2019; 118:109068. [PMID: 31404774 DOI: 10.1016/j.biopha.2019.109068] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 05/31/2019] [Accepted: 05/31/2019] [Indexed: 12/16/2022] Open
Abstract
NBIA (Neurodegeneration with brain iron accumulation) is a group of inherited neurologic disorders characterized by marked genetic heterogeneity, in which iron atypical accumulates in basal ganglia resulting in brain magnetic resonance imaging changes, histopathological abnormalities, and neuropsychiatric clinical symptoms. With the rapid development of high-throughput sequencing technologies, ten candidate genes have been identified, including PANK2, PLA2G6, C19orf12, WDR45, FA2H, ATP13A2, FTL, CP, C2orf37, and COASY. They are involved in seemingly unrelated cellular pathways, such as iron homeostasis (FTL, CP), lipid metabolism (PLA2G6, C19orf12, FA2H), Coenzyme A synthesis (PANK2, COASY), and autophagy (WDR45, ATP13A2). In particular, PANK2, COASY, PLA2G6, and C19orf12 are located on mitochondria, which associate with certain subtypes of NBIA showing mitochondria dysregulation. However, the relationships among those four genes are still unclear. Therefore, this review is specifically focused on dysregulation of mitochondria in NBIA and afore-mentioned four genes, with summaries of both pathological and clinical findings.
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Affiliation(s)
- Zhi-Bin Wang
- Departments of Clinical Pharmacology and National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, PR China
| | - Jun-Yan Liu
- Department of Orthopaedics, The First Affiliated Hospital of the University of South China, Hengyang 421001, PR China
| | - Xiao-Jing Xu
- Departments of Clinical Pharmacology and National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, PR China
| | - Xiao-Yuan Mao
- Departments of Clinical Pharmacology and National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, PR China
| | - Wei Zhang
- Departments of Clinical Pharmacology and National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, PR China
| | - Hong-Hao Zhou
- Departments of Clinical Pharmacology and National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, PR China
| | - Zhao-Qian Liu
- Departments of Clinical Pharmacology and National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, PR China.
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Neurodegeneration with Brain Iron Accumulation Disorders: Valuable Models Aimed at Understanding the Pathogenesis of Iron Deposition. Pharmaceuticals (Basel) 2019; 12:ph12010027. [PMID: 30744104 PMCID: PMC6469182 DOI: 10.3390/ph12010027] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 01/25/2019] [Accepted: 01/29/2019] [Indexed: 02/07/2023] Open
Abstract
Neurodegeneration with brain iron accumulation (NBIA) is a set of neurodegenerative disorders, which includes very rare monogenetic diseases. They are heterogeneous in regard to the onset and the clinical symptoms, while the have in common a specific brain iron deposition in the region of the basal ganglia that can be visualized by radiological and histopathological examinations. Nowadays, 15 genes have been identified as causative for NBIA, of which only two code for iron-proteins, while all the other causative genes codify for proteins not involved in iron management. Thus, how iron participates to the pathogenetic mechanism of most NBIA remains unclear, essentially for the lack of experimental models that fully recapitulate the human phenotype. In this review we reported the recent data on new models of these disorders aimed at highlight the still scarce knowledge of the pathogenesis of iron deposition.
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Abstract
Two inborn errors of coenzyme A (CoA) metabolism are responsible for distinct forms of neurodegeneration with brain iron accumulation (NBIA), a heterogeneous group of neurodegenerative diseases having as a common denominator iron accumulation mainly in the inner portion of globus pallidus. Pantothenate kinase-associated neurodegeneration (PKAN), an autosomal recessive disorder with progressive impairment of movement, vision and cognition, is the most common form of NBIA and is caused by mutations in the pantothenate kinase 2 gene (PANK2), coding for a mitochondrial enzyme, which phosphorylates vitamin B5 in the first reaction of the CoA biosynthetic pathway. Another very rare but similar disorder, denominated CoPAN, is caused by mutations in coenzyme A synthase gene (COASY) coding for a bi-functional mitochondrial enzyme, which catalyzes the final steps of CoA biosynthesis. It still remains a mystery why dysfunctions in CoA synthesis lead to neurodegeneration and iron accumulation in specific brain regions, but it is now evident that CoA metabolism plays a crucial role in the normal functioning and metabolism of the nervous system.
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Affiliation(s)
- Ivano Di Meo
- Unit of Molecular Neurogenetics - Pierfranco and Luisa Mariani Centre for the Study of Mitochondrial Disorders in Children, Foundation IRCCS Neurological Institute C. Besta, Via Temolo 4, Milan 20126, Italy
| | - Miryam Carecchio
- Unit of Molecular Neurogenetics - Pierfranco and Luisa Mariani Centre for the Study of Mitochondrial Disorders in Children, Foundation IRCCS Neurological Institute C. Besta, Via Temolo 4, Milan 20126, Italy
- Department of Child Neurology, Foundation IRCCS Neurological Institute C. Besta, Via Celoria 11, Milan 20133, Italy
- Department of Medicine and Surgery, PhD Programme in Molecular and Translational Medicine, University of Milan Bicocca, Via Cadore 48, Monza 20900, Italy
| | - Valeria Tiranti
- Unit of Molecular Neurogenetics - Pierfranco and Luisa Mariani Centre for the Study of Mitochondrial Disorders in Children, Foundation IRCCS Neurological Institute C. Besta, Via Temolo 4, Milan 20126, Italy
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Iron Pathophysiology in Neurodegeneration with Brain Iron Accumulation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1173:153-177. [DOI: 10.1007/978-981-13-9589-5_9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Sharma LK, Subramanian C, Yun MK, Frank MW, White SW, Rock CO, Lee RE, Jackowski S. A therapeutic approach to pantothenate kinase associated neurodegeneration. Nat Commun 2018; 9:4399. [PMID: 30352999 PMCID: PMC6199309 DOI: 10.1038/s41467-018-06703-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 09/20/2018] [Indexed: 12/17/2022] Open
Abstract
Pantothenate kinase (PANK) is a metabolic enzyme that regulates cellular coenzyme A (CoA) levels. There are three human PANK genes, and inactivating mutations in PANK2 lead to pantothenate kinase associated neurodegeneration (PKAN). Here we performed a library screen followed by chemical optimization to produce PZ-2891, an allosteric PANK activator that crosses the blood brain barrier. PZ-2891 occupies the pantothenate pocket and engages the dimer interface to form a PANK•ATP•Mg2+•PZ-2891 complex. The binding of PZ-2891 to one protomer locks the opposite protomer in a catalytically active conformation that is refractory to acetyl-CoA inhibition. Oral administration of PZ-2891 increases CoA levels in mouse liver and brain. A knockout mouse model of brain CoA deficiency exhibited weight loss, severe locomotor impairment and early death. Knockout mice on PZ-2891 therapy gain weight, and have improved locomotor activity and life span establishing pantazines as novel therapeutics for the treatment of PKAN.
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Affiliation(s)
- Lalit Kumar Sharma
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
- Nurix, Inc, 1700 Owens Street, Suite 205, San Francisco, CA, 94158, USA
| | - Chitra Subramanian
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Mi-Kyung Yun
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Matthew W Frank
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Stephen W White
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Charles O Rock
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Richard E Lee
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA
| | - Suzanne Jackowski
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, 38105, USA.
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27
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Pagani F, Trivedi A, Khatri D, Zizioli D, Garrafa E, Mitola S, Finazzi D. Silencing of pantothenate kinase 2 reduces endothelial cell angiogenesis. Mol Med Rep 2018; 18:4739-4746. [PMID: 30221726 DOI: 10.3892/mmr.2018.9480] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 08/23/2018] [Indexed: 11/05/2022] Open
Abstract
Coenzyme A (CoA) is an essential cofactor of cellular metabolism that is involved in ~4% of cellular reactions. Its de novo production relies on five subsequent enzymatic steps, starting with the phosphorylation of vitamin B5. Pantothenate kinase 2 (PANK2) and coenzyme A synthase (COASY) catalyze the first and last steps of this pathway. Mutations in these genes lead to severe and progressive movement disorders, with neurodegeneration and iron accumulation in the basal ganglia, known as PANK2‑ and COASY protein‑associated neurodegeneration, respectively. Given the ubiquitous role of CoA in cellular metabolism, it is still not clear why patients carrying PANK2 and COASY mutations develop almost exclusively neurological symptoms. Important clues are the energetic profile of neural cells as well as the high levels of PANK2 expression in the brain; however, other features may contribute to this selective tissue vulnerability. Notably, when pank2 or coasy expression was suppressed in zebrafish evident perturbation of neuronal development was observed, as well as severe defects in vasculature formation. Supplementation of CoA to fish water prevented the appearance of the phenotype, thereby confirming the specific connection with the availability of the metabolic cofactor. The present study investigated the associations between PANK2 defects and angiogenesis in a mammalian setting, and revealed that PANK2 expression was required for normal angiogenetic properties of human umbilical vein endothelial cells.
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Affiliation(s)
- Francesca Pagani
- Section of Biotechnology, Department of Molecular and Translational Medicine, University of Brescia, I‑25123 Brescia, Italy
| | - Akansha Trivedi
- Section of Biotechnology, Department of Molecular and Translational Medicine, University of Brescia, I‑25123 Brescia, Italy
| | - Deepak Khatri
- Section of Biotechnology, Department of Molecular and Translational Medicine, University of Brescia, I‑25123 Brescia, Italy
| | - Daniela Zizioli
- Section of Biotechnology, Department of Molecular and Translational Medicine, University of Brescia, I‑25123 Brescia, Italy
| | - Emirena Garrafa
- Section of Biotechnology, Department of Molecular and Translational Medicine, University of Brescia, I‑25123 Brescia, Italy
| | - Stefania Mitola
- Section of Biotechnology, Department of Molecular and Translational Medicine, University of Brescia, I‑25123 Brescia, Italy
| | - Dario Finazzi
- Section of Biotechnology, Department of Molecular and Translational Medicine, University of Brescia, I‑25123 Brescia, Italy
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28
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Overexpression of Human Mutant PANK2 Proteins Affects Development and Motor Behavior of Zebrafish Embryos. Neuromolecular Med 2018; 21:120-131. [PMID: 30141000 DOI: 10.1007/s12017-018-8508-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Accepted: 08/17/2018] [Indexed: 02/07/2023]
Abstract
Pantothenate Kinase-Associated Neurodegeneration (PKAN) is a genetic and early-onset neurodegenerative disorder characterized by iron accumulation in the basal ganglia. It is due to mutations in Pantothenate Kinase 2 (PANK2), an enzyme that catalyzes the phosphorylation of vitamin B5, first and essential step in coenzyme A (CoA) biosynthesis. Most likely, an unbalance of the neuronal levels of this important cofactor represents the initial trigger of the neurodegenerative process, yet a complete understanding of the connection between PANK2 malfunctioning and neuronal death is lacking. Most PKAN patients carry mutations in both alleles and a loss of function mechanism is proposed to explain the pathology. When PANK2 mutants were analyzed for stability, dimerization capacity, and enzymatic activity in vitro, many of them showed properties like the wild-type form. To further explore this aspect, we overexpressed the wild-type protein, two mutant forms with reduced kinase activity and two retaining the catalytic activity in zebrafish embryos and analyzed the morpho-functional consequences. While the wild-type protein had no effects, all mutant proteins generated phenotypes that partially resembled those observed in pank2 and coasy morphants and were rescued by CoA and vitamin B5 supplementation. The overexpression of PANK2 mutant forms appears to be associated with perturbation in CoA availability, irrespective of their catalytic activity.
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Biallelic loss of function variants in COASY cause prenatal onset pontocerebellar hypoplasia, microcephaly, and arthrogryposis. Eur J Hum Genet 2018; 26:1752-1758. [PMID: 30089828 DOI: 10.1038/s41431-018-0233-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 07/09/2018] [Accepted: 07/17/2018] [Indexed: 02/04/2023] Open
Abstract
Pontocerebellar hypoplasia (PCH) is a heterogeneous neurodegenerative disorder with a prenatal onset. Using whole-exome sequencing, we identified variants in the gene Coenzyme A (CoA) synthase (COASY) gene, an enzyme essential in CoA synthesis, in four individuals from two families with PCH, prenatal onset microcephaly, and arthrogryposis. In family 1, compound heterozygous variants were identified in COASY: c.[1549_1550delAG]; [1486-3 C>G]. In family 2, all three affected siblings were homozygous for the c.1486-3 C>G variant. In both families, the variants segregated with the phenotype. RNA analysis showed that the c.1486-3 C>G variant leads to skipping of exon 7 with partial retention of intron 7, disturbing the reading frame and resulting in a premature stop codon (p.(Ala496Ilefs*20)). No CoA synthase protein was detected in patient cells by immunoblot analysis and CoA synthase activity was virtually absent. Partial CoA synthase defects were previously described as a cause of COASY Protein-Associated Neurodegeneration (CoPAN), a type of Neurodegeneration and Brain Iron Accumulation (NBIA). Here we demonstrate that near complete loss of function variants in COASY are associated with lethal PCH and arthrogryposis.
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30
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Iuso A, Wiersma M, Schüller HJ, Pode-Shakked B, Marek-Yagel D, Grigat M, Schwarzmayr T, Berutti R, Alhaddad B, Kanon B, Grzeschik NA, Okun JG, Perles Z, Salem Y, Barel O, Vardi A, Rubinshtein M, Tirosh T, Dubnov-Raz G, Messias AC, Terrile C, Barshack I, Volkov A, Avivi C, Eyal E, Mastantuono E, Kumbar M, Abudi S, Braunisch M, Strom TM, Meitinger T, Hoffmann GF, Prokisch H, Haack TB, Brundel BJ, Haas D, Sibon OC, Anikster Y. Mutations in PPCS, Encoding Phosphopantothenoylcysteine Synthetase, Cause Autosomal-Recessive Dilated Cardiomyopathy. Am J Hum Genet 2018; 102:1018-1030. [PMID: 29754768 DOI: 10.1016/j.ajhg.2018.03.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 03/22/2018] [Indexed: 01/25/2023] Open
Abstract
Coenzyme A (CoA) is an essential metabolic cofactor used by around 4% of cellular enzymes. Its role is to carry and transfer acetyl and acyl groups to other molecules. Cells can synthesize CoA de novo from vitamin B5 (pantothenate) through five consecutive enzymatic steps. Phosphopantothenoylcysteine synthetase (PPCS) catalyzes the second step of the pathway during which phosphopantothenate reacts with ATP and cysteine to form phosphopantothenoylcysteine. Inborn errors of CoA biosynthesis have been implicated in neurodegeneration with brain iron accumulation (NBIA), a group of rare neurological disorders characterized by accumulation of iron in the basal ganglia and progressive neurodegeneration. Exome sequencing in five individuals from two unrelated families presenting with dilated cardiomyopathy revealed biallelic mutations in PPCS, linking CoA synthesis with a cardiac phenotype. Studies in yeast and fruit flies confirmed the pathogenicity of identified mutations. Biochemical analysis revealed a decrease in CoA levels in fibroblasts of all affected individuals. CoA biosynthesis can occur with pantethine as a source independent from PPCS, suggesting pantethine as targeted treatment for the affected individuals still alive.
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31
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Di Meo I, Tiranti V. Classification and molecular pathogenesis of NBIA syndromes. Eur J Paediatr Neurol 2018; 22:272-284. [PMID: 29409688 DOI: 10.1016/j.ejpn.2018.01.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 12/06/2017] [Accepted: 01/08/2018] [Indexed: 12/14/2022]
Abstract
Brain iron accumulation is the hallmark of a group of seriously invalidating and progressive rare diseases collectively denominated Neurodegeneration with Brain Iron Accumulation (NBIA), characterized by movement disorder, painful dystonia, parkinsonism, mental disability and early death. Currently there is no established therapy available to slow down or reverse the progression of these conditions. Several genes have been identified as responsible for NBIA but only two encode for proteins playing a direct role in iron metabolism. The other genes encode for proteins either with various functions in lipid metabolism, lysosomal activity and autophagic processes or with still unknown roles. The different NBIA subtypes have been classified and denominated on the basis of the mutated genes and, despite genetic heterogeneity, some of them code for proteins, which share or converge on common metabolic pathways. In the last ten years, the implementation of genetic screening based on Whole Exome Sequencing has greatly accelerated gene discovery, nevertheless our knowledge of the pathogenic mechanisms underlying the NBIA syndromes is still largely incomplete.
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Affiliation(s)
- Ivano Di Meo
- Unit of Molecular Neurogenetics, Pierfranco and Luisa Mariani Centre for the Study of Mitochondrial Disorders in Children, Foundation IRCCS Neurological Institute C. Besta, Via Temolo 4, 20126, Milan, Italy
| | - Valeria Tiranti
- Unit of Molecular Neurogenetics, Pierfranco and Luisa Mariani Centre for the Study of Mitochondrial Disorders in Children, Foundation IRCCS Neurological Institute C. Besta, Via Temolo 4, 20126, Milan, Italy.
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32
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Di Meo I, Colombelli C, Srinivasan B, de Villiers M, Hamada J, Jeong SY, Fox R, Woltjer RL, Tepper PG, Lahaye LL, Rizzetto E, Harrs CH, de Boer T, van der Zwaag M, Jenko B, Čusak A, Pahor J, Kosec G, Grzeschik NA, Hayflick SJ, Tiranti V, Sibon OCM. Acetyl-4'-phosphopantetheine is stable in serum and prevents phenotypes induced by pantothenate kinase deficiency. Sci Rep 2017; 7:11260. [PMID: 28900161 PMCID: PMC5595861 DOI: 10.1038/s41598-017-11564-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 08/09/2017] [Indexed: 01/22/2023] Open
Abstract
Coenzyme A is an essential metabolite known for its central role in over one hundred cellular metabolic reactions. In cells, Coenzyme A is synthesized de novo in five enzymatic steps with vitamin B5 as the starting metabolite, phosphorylated by pantothenate kinase. Mutations in the pantothenate kinase 2 gene cause a severe form of neurodegeneration for which no treatment is available. One therapeutic strategy is to generate Coenzyme A precursors downstream of the defective step in the pathway. Here we describe the synthesis, characteristics and in vivo rescue potential of the acetyl-Coenzyme A precursor S-acetyl-4′-phosphopantetheine as a possible treatment for neurodegeneration associated with pantothenate kinase deficiency.
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Affiliation(s)
- Ivano Di Meo
- Division of Molecular Neurogenetics, IRCCS Foundation Neurological Institute "C.Besta" Via Temolo 4, 20126, Milano, Italy
| | - Cristina Colombelli
- Division of Molecular Neurogenetics, IRCCS Foundation Neurological Institute "C.Besta" Via Temolo 4, 20126, Milano, Italy
| | - Balaji Srinivasan
- Department of Cell Biology, University Medical Center Groningen, University of Groningen, Ant. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Marianne de Villiers
- Department of Biochemistry, Stellenbosch University, Stellenbosch, 7600, South Africa
| | - Jeffrey Hamada
- Departments of Molecular & Medical Genetics and Pathology, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Suh Y Jeong
- Departments of Molecular & Medical Genetics and Pathology, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Rachel Fox
- Departments of Molecular & Medical Genetics and Pathology, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Randall L Woltjer
- Departments of Molecular & Medical Genetics and Pathology, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Pieter G Tepper
- Department of Chemical and Pharmaceutical Biology, University of Groningen, Ant. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Liza L Lahaye
- Department of Cell Biology, University Medical Center Groningen, University of Groningen, Ant. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Emanuela Rizzetto
- Clinical Pathology and Medical Genetics Unit, Foundation IRCCS-Neurological Institute "Carlo Besta", Milano, Italy
| | - Clara H Harrs
- Department of Cell Biology, University Medical Center Groningen, University of Groningen, Ant. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Theo de Boer
- Analytical Biochemical Laboratory (ABL), WA Scholtenstraat 7, 9403 AJ, Assen, The Netherlands
| | - Marianne van der Zwaag
- Department of Cell Biology, University Medical Center Groningen, University of Groningen, Ant. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Branko Jenko
- Acies Bio d.o.o., Tehnološki park 21, 1000, Ljubljana, Slovenia
| | - Alen Čusak
- Acies Bio d.o.o., Tehnološki park 21, 1000, Ljubljana, Slovenia
| | - Jerca Pahor
- Acies Bio d.o.o., Tehnološki park 21, 1000, Ljubljana, Slovenia.,Laboratory of Organic and Bioorganic Chemistry, Department of Physical and Organic Chemistry, Jožef Stefan Institute, Jamova 39, 1000, Ljubljana, Slovenia
| | - Gregor Kosec
- Acies Bio d.o.o., Tehnološki park 21, 1000, Ljubljana, Slovenia
| | - Nicola A Grzeschik
- Department of Cell Biology, University Medical Center Groningen, University of Groningen, Ant. Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - Susan J Hayflick
- Departments of Molecular & Medical Genetics and Pathology, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Valeria Tiranti
- Division of Molecular Neurogenetics, IRCCS Foundation Neurological Institute "C.Besta" Via Temolo 4, 20126, Milano, Italy
| | - Ody C M Sibon
- Department of Cell Biology, University Medical Center Groningen, University of Groningen, Ant. Deusinglaan 1, 9713 AV, Groningen, The Netherlands.
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33
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Arber C, Angelova PR, Wiethoff S, Tsuchiya Y, Mazzacuva F, Preza E, Bhatia KP, Mills K, Gout I, Abramov AY, Hardy J, Duce JA, Houlden H, Wray S. iPSC-derived neuronal models of PANK2-associated neurodegeneration reveal mitochondrial dysfunction contributing to early disease. PLoS One 2017; 12:e0184104. [PMID: 28863176 PMCID: PMC5581181 DOI: 10.1371/journal.pone.0184104] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 08/17/2017] [Indexed: 01/22/2023] Open
Abstract
Mutations in PANK2 lead to neurodegeneration with brain iron accumulation. PANK2 has a role in the biosynthesis of coenzyme A (CoA) from dietary vitamin B5, but the neuropathological mechanism and reasons for iron accumulation remain unknown. In this study, atypical patient-derived fibroblasts were reprogrammed into induced pluripotent stem cells (iPSCs) and subsequently differentiated into cortical neuronal cells for studying disease mechanisms in human neurons. We observed no changes in PANK2 expression between control and patient cells, but a reduction in protein levels was apparent in patient cells. CoA homeostasis and cellular iron handling were normal, mitochondrial function was affected; displaying activated NADH-related and inhibited FADH-related respiration, resulting in increased mitochondrial membrane potential. This led to increased reactive oxygen species generation and lipid peroxidation in patient-derived neurons. These data suggest that mitochondrial deficiency is an early feature of the disease process and can be explained by altered NADH/FADH substrate supply to oxidative phosphorylation. Intriguingly, iron chelation appeared to exacerbate the mitochondrial phenotype in both control and patient neuronal cells. This raises caution for the use iron chelation therapy in general when iron accumulation is absent.
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Affiliation(s)
- Charles Arber
- Department of Molecular Neuroscience, Institute of Neurology, University College London, London, United Kingdom
| | - Plamena R. Angelova
- Department of Molecular Neuroscience, Institute of Neurology, University College London, London, United Kingdom
| | - Sarah Wiethoff
- Department of Molecular Neuroscience, Institute of Neurology, University College London, London, United Kingdom
| | - Yugo Tsuchiya
- Institute of Structural and Molecular Biology, University College London, London, United Kingdom
| | - Francesca Mazzacuva
- Centre for Translational Omics, Genetics and Genomic Medicine Programme, UCL Institute of Child Health, London, United Kingdom
| | - Elisavet Preza
- Department of Molecular Neuroscience, Institute of Neurology, University College London, London, United Kingdom
| | - Kailash P. Bhatia
- Department of Molecular Neuroscience, Institute of Neurology, University College London, London, United Kingdom
| | - Kevin Mills
- Centre for Translational Omics, Genetics and Genomic Medicine Programme, UCL Institute of Child Health, London, United Kingdom
| | - Ivan Gout
- Institute of Structural and Molecular Biology, University College London, London, United Kingdom
| | - Andrey Y. Abramov
- Department of Molecular Neuroscience, Institute of Neurology, University College London, London, United Kingdom
| | - John Hardy
- Department of Molecular Neuroscience, Institute of Neurology, University College London, London, United Kingdom
| | - James A. Duce
- School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
| | - Henry Houlden
- Department of Molecular Neuroscience, Institute of Neurology, University College London, London, United Kingdom
| | - Selina Wray
- Department of Molecular Neuroscience, Institute of Neurology, University College London, London, United Kingdom
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