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Metzner K, Darawsha O, Wang M, Gaur N, Cheng Y, Rödiger A, Frahm C, Witte OW, Perocchi F, Axer H, Grosskreutz J, Brill MS. Age-dependent increase of cytoskeletal components in sensory axons in human skin. Front Cell Dev Biol 2022; 10:965382. [PMID: 36393849 PMCID: PMC9664158 DOI: 10.3389/fcell.2022.965382] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 10/12/2022] [Indexed: 01/24/2023] Open
Abstract
Aging is a complex process characterized by several molecular and cellular imbalances. The composition and stability of the neuronal cytoskeleton is essential for the maintenance of homeostasis, especially in long neurites. Using human skin biopsies containing sensory axons from a cohort of healthy individuals, we investigate alterations in cytoskeletal content and sensory axon caliber during aging via quantitative immunostainings. Cytoskeletal components show an increase with aging in both sexes, while elevation in axon diameter is only evident in males. Transcriptomic data from aging males illustrate various patterns in gene expression during aging. Together, the data suggest gender-specific changes during aging in peripheral sensory axons, possibly influencing cytoskeletal functionality and axonal caliber. These changes may cumulatively increase susceptibility of aged individuals to neurodegenerative diseases.
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Affiliation(s)
- Klara Metzner
- Department of Neurology, Jena University Hospital, Jena, Germany,Institute of Neuronal Cell Biology, Technical University Munich, Munich, Germany
| | - Omar Darawsha
- Institute of Neuronal Cell Biology, Technical University Munich, Munich, Germany
| | - Mengzhe Wang
- Institute of Neuronal Cell Biology, Technical University Munich, Munich, Germany
| | - Nayana Gaur
- Department of Neurology, Jena University Hospital, Jena, Germany,Laboratory Animal Centre, Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Yiming Cheng
- Helmholtz Diabetes Center (HDC), Helmholtz Center Munich, Institute for Diabetes and Obesity, Munich, Germany
| | | | - Christiane Frahm
- Department of Neurology, Jena University Hospital, Jena, Germany
| | - Otto W. Witte
- Department of Neurology, Jena University Hospital, Jena, Germany
| | - Fabiana Perocchi
- Institute of Neuronal Cell Biology, Technical University Munich, Munich, Germany,Helmholtz Diabetes Center (HDC), Helmholtz Center Munich, Institute for Diabetes and Obesity, Munich, Germany,Munich Cluster of Systems Neurology (SyNergy), Munich, Germany
| | - Hubertus Axer
- Department of Neurology, Jena University Hospital, Jena, Germany
| | - Julian Grosskreutz
- Precision Neurology of the University of Lübeck, Lübeck, Germany,PMI Cluster, University of Lübeck, Lübeck, Germany
| | - Monika S. Brill
- Institute of Neuronal Cell Biology, Technical University Munich, Munich, Germany,Munich Cluster of Systems Neurology (SyNergy), Munich, Germany,*Correspondence: Monika S. Brill,
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2
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Duly AMP, Kao FCL, Teo WS, Kavallaris M. βIII-Tubulin Gene Regulation in Health and Disease. Front Cell Dev Biol 2022; 10:851542. [PMID: 35573698 PMCID: PMC9096907 DOI: 10.3389/fcell.2022.851542] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 04/07/2022] [Indexed: 11/24/2022] Open
Abstract
Microtubule proteins form a dynamic component of the cytoskeleton, and play key roles in cellular processes, such as vesicular transport, cell motility and mitosis. Expression of microtubule proteins are often dysregulated in cancer. In particular, the microtubule protein βIII-tubulin, encoded by the TUBB3 gene, is aberrantly expressed in a range of epithelial tumours and is associated with drug resistance and aggressive disease. In normal cells, TUBB3 expression is tightly restricted, and is found almost exclusively in neuronal and testicular tissues. Understanding the mechanisms that control TUBB3 expression, both in cancer, mature and developing tissues will help to unravel the basic biology of the protein, its role in cancer, and may ultimately lead to the development of new therapeutic approaches to target this protein. This review is devoted to the transcriptional and posttranscriptional regulation of TUBB3 in normal and cancerous tissue.
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Affiliation(s)
- Alastair M. P. Duly
- Children’s Cancer Institute, Lowy Cancer Research Center, UNSW Sydney, Randwick, NSW, Australia
| | - Felicity C. L. Kao
- Children’s Cancer Institute, Lowy Cancer Research Center, UNSW Sydney, Randwick, NSW, Australia
- Australian Center for NanoMedicine, UNSW Sydney, Sydney, NSW, Australia
- School of Women and Children’s Health, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
| | - Wee Siang Teo
- Children’s Cancer Institute, Lowy Cancer Research Center, UNSW Sydney, Randwick, NSW, Australia
- Australian Center for NanoMedicine, UNSW Sydney, Sydney, NSW, Australia
| | - Maria Kavallaris
- Children’s Cancer Institute, Lowy Cancer Research Center, UNSW Sydney, Randwick, NSW, Australia
- Australian Center for NanoMedicine, UNSW Sydney, Sydney, NSW, Australia
- School of Women and Children’s Health, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
- UNSW RNA Institute, UNSW Sydney, Sydney, NSW, Australia
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3
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Salivary Glands after Prolonged Aluminum Exposure: Proteomic Approach Underlying Biochemical and Morphological Impairments in Rats. Int J Mol Sci 2022; 23:ijms23042251. [PMID: 35216367 PMCID: PMC8877476 DOI: 10.3390/ijms23042251] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/16/2022] [Accepted: 01/18/2022] [Indexed: 12/25/2022] Open
Abstract
Aluminum (Al) is one of the most abundant elements on Earth, and its high extraction rate and industrial use make human exposure very common. As Al may be a human toxicant, it is important to investigate the effects of Al exposure, mainly at low doses and for prolonged periods, by simulating human exposure. This work aimed to study the effects of low-dose exposure to chloride aluminum (AlCl3) on the oxidative biochemistry, proteomic profile, and morphology of the major salivary glands. Wistar male rats were exposed to 8.3 mg/kg/day of AlCl3 via intragastric gavage for 60 days. Then, the parotid and submandibular glands were subjected to biochemical assays, proteomic evaluation, and histological analysis. Al caused oxidative imbalance in both salivary glands. Dysregulation of protein expression, mainly of those related to cytoarchitecture, energy metabolism and glandular function, was detected in both salivary glands. Al also promoted histological alterations, such as acinar atrophy and an increase in parenchymal tissue. Prolonged exposure to Al, even at low doses, was able to modulate molecular alterations associated with morphological impairments in the salivary glands of rats. From this perspective, prolonged Al exposure may be a risk to exposed populations and their oral health.
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4
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Analysis of Astroglial Secretomic Profile in the Mecp2-Deficient Male Mouse Model of Rett Syndrome. Int J Mol Sci 2021; 22:ijms22094316. [PMID: 33919253 PMCID: PMC8122273 DOI: 10.3390/ijms22094316] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/09/2021] [Accepted: 04/16/2021] [Indexed: 02/08/2023] Open
Abstract
Mutations in the X-linked MECP2 gene are responsible for Rett syndrome (RTT), a severe neurological disorder. MECP2 is a transcriptional modulator that finely regulates the expression of many genes, specifically in the central nervous system. Several studies have functionally linked the loss of MECP2 in astrocytes to the appearance and progression of the RTT phenotype in a non-cell autonomous manner and mechanisms are still unknown. Here, we used primary astroglial cells from Mecp2-deficient (KO) pups to identify deregulated secreted proteins. Using a differential quantitative proteomic analysis, twenty-nine proteins have been identified and four were confirmed by Western blotting with new samples as significantly deregulated. To further verify the functional relevance of these proteins in RTT, we tested their effects on the dendritic morphology of primary cortical neurons from Mecp2 KO mice that are known to display shorter dendritic processes. Using Sholl analysis, we found that incubation with Lcn2 or Lgals3 for 48 h was able to significantly increase the dendritic arborization of Mecp2 KO neurons. To our knowledge, this study, through secretomic analysis, is the first to identify astroglial secreted proteins involved in the neuronal RTT phenotype in vitro, which could open new therapeutic avenues for the treatment of Rett syndrome.
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5
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Goron A, Breuillard C, Cunin V, Bourgoin-Voillard S, Seve M, Moinard C. Modulation of muscle protein synthesis by amino acids: what consequences for the secretome? A preliminary in vitro study. Amino Acids 2019; 51:1681-1688. [PMID: 31654208 DOI: 10.1007/s00726-019-02796-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 10/04/2019] [Indexed: 01/10/2023]
Abstract
The modulation by amino acids of muscle secretome is largely unknown. In this study, we investigate the effect of hyperaminoacidemia or specific amino acids (citrulline or leucine) on protein synthesis and secretome in myotubes. All conditions stimulate muscle protein synthesis, and secretome is differently modulated depending of the amino acids considered. In conclusion, the activation of protein synthesis by amino acids induces different modulations of the muscle secretome, proposing a new role of amino acids in the regulation of muscle function.
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Affiliation(s)
- Arthur Goron
- Université de Grenoble Alpes, LBFA et BEeSy, INSERM U1055, PROMETHEE Proteomic Platform, 2280 rue de la Piscine, BP 53, 38041, Grenoble, France
| | - Charlotte Breuillard
- Université de Grenoble Alpes, LBFA et BEeSy, INSERM U1055, PROMETHEE Proteomic Platform, 2280 rue de la Piscine, BP 53, 38041, Grenoble, France
| | - Valérie Cunin
- Université de Grenoble Alpes, LBFA et BEeSy, INSERM U1055, PROMETHEE Proteomic Platform, 2280 rue de la Piscine, BP 53, 38041, Grenoble, France.,CHU Grenoble Alpes, PROMETHEE Proteomic Platform, Institut de Biologie et de Pathologie, Grenoble, France
| | - Sandrine Bourgoin-Voillard
- Université de Grenoble Alpes, LBFA et BEeSy, INSERM U1055, PROMETHEE Proteomic Platform, 2280 rue de la Piscine, BP 53, 38041, Grenoble, France.,CHU Grenoble Alpes, PROMETHEE Proteomic Platform, Institut de Biologie et de Pathologie, Grenoble, France
| | - Michel Seve
- Université de Grenoble Alpes, LBFA et BEeSy, INSERM U1055, PROMETHEE Proteomic Platform, 2280 rue de la Piscine, BP 53, 38041, Grenoble, France.,CHU Grenoble Alpes, PROMETHEE Proteomic Platform, Institut de Biologie et de Pathologie, Grenoble, France
| | - Christophe Moinard
- Université de Grenoble Alpes, LBFA et BEeSy, INSERM U1055, PROMETHEE Proteomic Platform, 2280 rue de la Piscine, BP 53, 38041, Grenoble, France.
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6
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Askri D, Cunin V, Ouni S, Béal D, Rachidi W, Sakly M, Amara S, Lehmann SG, Sève M. Effects of Iron Oxide Nanoparticles (γ-Fe 2O 3) on Liver, Lung and Brain Proteomes following Sub-Acute Intranasal Exposure: A New Toxicological Assessment in Rat Model Using iTRAQ-Based Quantitative Proteomics. Int J Mol Sci 2019; 20:E5186. [PMID: 31635106 PMCID: PMC6829235 DOI: 10.3390/ijms20205186] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 10/17/2019] [Indexed: 12/20/2022] Open
Abstract
Iron Oxide Nanoparticles (IONPs) present unique properties making them one of the most used NPs in the biomedical field. Nevertheless, for many years, growing production and use of IONPs are associated with risks that can affect human and the environment. Thus, it is essential to study the effects of these nanoparticles to better understand their mechanism of action and the molecular perturbations induced in the organism. In the present study, we investigated the toxicological effects of IONPs (γ-Fe2O3) on liver, lung and brain proteomes in Wistar rats. Exposed rats received IONP solution during 7 consecutive days by intranasal instillation at a dose of 10 mg/kg body weight. An iTRAQ-based quantitative proteomics was used to study proteomic variations at the level of the three organs. Using this proteomic approach, we identified 1565; 1135 and 1161 proteins respectively in the brain, liver and lung. Amon them, we quantified 1541; 1125 and 1128 proteins respectively in the brain, liver and lung. Several proteins were dysregulated comparing treated samples to controls, particularly, proteins involved in cytoskeleton remodeling, cellular metabolism, immune system stimulation, inflammation process, response to oxidative stress, angiogenesis, and neurodegenerative diseases.
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Affiliation(s)
- Dalel Askri
- University Grenoble Alpes, PROMETHEE Proteomic Platform, BEeSy, 38000 Grenoble, France.
- LBFA Inserm U1055, PROMETHEE Proteomic Platform, 38000 Grenoble, France.
- Institut de Biologie et Pathologie, PROMETHEE Proteomic Platform, CHU Grenoble Alpes, 38000, Grenoble, France.
- Carthage University, College of Sciences of Bizerte, Unit of Research in Integrated Physiology, 7021, Bizerte, Tunisia.
| | - Valérie Cunin
- University Grenoble Alpes, PROMETHEE Proteomic Platform, BEeSy, 38000 Grenoble, France.
- LBFA Inserm U1055, PROMETHEE Proteomic Platform, 38000 Grenoble, France.
- Institut de Biologie et Pathologie, PROMETHEE Proteomic Platform, CHU Grenoble Alpes, 38000, Grenoble, France.
| | - Souhir Ouni
- Carthage University, College of Sciences of Bizerte, Unit of Research in Integrated Physiology, 7021, Bizerte, Tunisia.
| | - David Béal
- University Grenoble Alpes, SyMMES/CIBEST UMR 5819 UGA-CNRS-CEA, INAC/CEA-Grenoble LAN, 38000 Grenoble, France.
| | - Walid Rachidi
- University Grenoble Alpes, SyMMES/CIBEST UMR 5819 UGA-CNRS-CEA, INAC/CEA-Grenoble LAN, 38000 Grenoble, France.
| | - Mohsen Sakly
- Carthage University, College of Sciences of Bizerte, Unit of Research in Integrated Physiology, 7021, Bizerte, Tunisia.
| | - Salem Amara
- Carthage University, College of Sciences of Bizerte, Unit of Research in Integrated Physiology, 7021, Bizerte, Tunisia.
- Shaqra University, Faculty of Sciences and Humanities, Department of Natural and Applied Sciences in Afif, 11921 Afif, Saudi Arabia.
| | - Sylvia G Lehmann
- University Grenoble Alpes, PROMETHEE Proteomic Platform, BEeSy, 38000 Grenoble, France.
- LBFA Inserm U1055, PROMETHEE Proteomic Platform, 38000 Grenoble, France.
- Institut de Biologie et Pathologie, PROMETHEE Proteomic Platform, CHU Grenoble Alpes, 38000, Grenoble, France.
- University Grenoble Alpes, University Savoie Mont Blanc, CNRS, IRD, IFSTTAR, ISTerre, 38000 Grenoble, France.
| | - Michel Sève
- University Grenoble Alpes, PROMETHEE Proteomic Platform, BEeSy, 38000 Grenoble, France.
- LBFA Inserm U1055, PROMETHEE Proteomic Platform, 38000 Grenoble, France.
- Institut de Biologie et Pathologie, PROMETHEE Proteomic Platform, CHU Grenoble Alpes, 38000, Grenoble, France.
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7
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Askri D, Cunin V, Béal D, Berthier S, Chovelon B, Arnaud J, Rachidi W, Sakly M, Amara S, Sève M, Lehmann SG. Investigating the toxic effects induced by iron oxide nanoparticles on neuroblastoma cell line: an integrative study combining cytotoxic, genotoxic and proteomic tools. Nanotoxicology 2019; 13:1021-1040. [PMID: 31132913 DOI: 10.1080/17435390.2019.1621399] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Nanomaterials have gained much attention for their use and benefit in several fields. Iron Oxide Nanoparticles (IONPs) have been used in Biomedicine as contrast agents for imaging cancer cells. However, several studies reported the potential toxicity of those nanoparticles in different models, especially in cells. Therefore, in our present study, we investigated the effects of IONPs on the SH-SY5Y neuroblastoma cell line. We carried out cytotoxic and genotoxic studies to evaluate the phenotypic effects, and proteomic investigation to evaluate the molecular effects and the mechanisms by which this kind of NPs could induce toxicity. Our results showed that the use of three different sizes of IONPs (14, 22 and 30 nm) induced cell detachment, cell morphological changes, size, and concentration-dependent IONP internalization and cell mortality. IONPs induced slight genotoxic damage assayed by modified comet assay without affecting cell cycle, mitochondrial function, membrane integrity, intracellular calcium level, and without inducing ROS generation. All the studies were performed to compare also the effects of IONPs to the ferric iron by incubating cells with equivalent concentration of FeCl3. In all tests, the NPs exhibited more toxicity than the ferric iron. The proteomic analysis followed by gene ontology and pathway analysis evidenced the effects of IONPs on cytoskeleton, cell apoptosis, and cancer development. Our findings provided more information about IONP effects on human cells and especially on cancer cell line.
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Affiliation(s)
- Dalel Askri
- PROMETHEE Proteomic Platform, BEeSy, Grenoble Alpes University , Grenoble , France.,LBFA Inserm U1055, PROMETHEE Proteomic Platform , Grenoble , France.,CHU de Grenoble Alpes, Institut de Biologie et Pathologie , Grenoble, France.,Unit of Research in Integrated Physiology, College of Sciences of Bizerte, Carthage University , Bizerte , Tunisia
| | - Valérie Cunin
- PROMETHEE Proteomic Platform, BEeSy, Grenoble Alpes University , Grenoble , France.,LBFA Inserm U1055, PROMETHEE Proteomic Platform , Grenoble , France.,CHU de Grenoble Alpes, Institut de Biologie et Pathologie , Grenoble, France
| | - David Béal
- SyMMES/CIBEST UMR 5819 UGA-CNRS-CEA, INAC/CEA-Grenoble LAN, University Grenoble Alpes , Grenoble , France
| | - Sylvie Berthier
- Cytometry Platform, Pole Biology, University Grenoble Alpes , Grenoble , France
| | - Benoit Chovelon
- CHU de Grenoble Alpes, Institut de Biologie et Pathologie , Grenoble, France.,DPM UMR 5063, University Grenoble Alpes , Grenoble , France
| | - Josiane Arnaud
- LBFA Inserm U1055, PROMETHEE Proteomic Platform , Grenoble , France.,CHU de Grenoble Alpes, Institut de Biologie et Pathologie , Grenoble, France
| | - Walid Rachidi
- SyMMES/CIBEST UMR 5819 UGA-CNRS-CEA, INAC/CEA-Grenoble LAN, University Grenoble Alpes , Grenoble , France
| | - Mohsen Sakly
- Unit of Research in Integrated Physiology, College of Sciences of Bizerte, Carthage University , Bizerte , Tunisia
| | - Salem Amara
- Unit of Research in Integrated Physiology, College of Sciences of Bizerte, Carthage University , Bizerte , Tunisia
| | - Michel Sève
- PROMETHEE Proteomic Platform, BEeSy, Grenoble Alpes University , Grenoble , France.,LBFA Inserm U1055, PROMETHEE Proteomic Platform , Grenoble , France.,CHU de Grenoble Alpes, Institut de Biologie et Pathologie , Grenoble, France
| | - Sylvia G Lehmann
- PROMETHEE Proteomic Platform, BEeSy, Grenoble Alpes University , Grenoble , France.,LBFA Inserm U1055, PROMETHEE Proteomic Platform , Grenoble , France.,CHU de Grenoble Alpes, Institut de Biologie et Pathologie , Grenoble, France.,CNRS, IRD, IFSTTAR, ISTerre, University Grenoble Alpes , Grenoble , France.,CNRS, IRD, IFSTTAR, ISTerre, University Savoie Mont Blanc , Grenoble , France
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8
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Li Y, Hou X, Yang C, Pang Y, Li X, Jiang G, Liu Y. Photoprotection of Cerium Oxide Nanoparticles against UVA radiation-induced Senescence of Human Skin Fibroblasts due to their Antioxidant Properties. Sci Rep 2019; 9:2595. [PMID: 30796322 PMCID: PMC6385175 DOI: 10.1038/s41598-019-39486-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 12/13/2018] [Indexed: 02/08/2023] Open
Abstract
Ultraviolet (UV) irradiation, particularly ultraviolet A (UVA), stimulates reactive oxygen species (ROS) production in the epidermis and dermis, which plays a major part in the photoageing of human skin. Several studies have demonstrated that cerium oxide nanoparticles (CeO2 NP) can exhibit an antioxidant effect and free radical scavenging activity. However, the protective role of CeO2 NP in skin photoageing and the underlying mechanisms are unclear. In this study, we investigated the effects of CeO2 NP on UVA-irradiated human skin fibroblasts (HSFs) and explored the potential signalling pathway. CeO2 NP had no apparent cytotoxicity, and could reduce the production of proinflammatory cytokines, intracellular ROS, senescence-associated β-galactosidase activity, and downregulate phosphorylation of c-Jun N-terminal kinases (JNKs) after exposure to UVA radiation. Based on our findings, CeO2 NPs have great potential against UVA radiation-induced photoageing in HSFs via regulating the JNK signal-transduction pathway to inhibit oxidative stress and DNA damage.
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Affiliation(s)
- Yaxi Li
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, China
| | - Xiaoyang Hou
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, China
| | - Chunsheng Yang
- Department of Dermatology, the Affiliated Huai'an Hospital of Xuzhou Medical University, the Second People's Hospital of Huai'an, Huai'an, 223002, China
| | - Yanyu Pang
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, China
| | - Xinxin Li
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, China
| | - Guan Jiang
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, China.
| | - Yanqun Liu
- Department of Dermatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, China
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9
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Lehmann SG, Seve M, Vanwonterghem L, Michelland S, Cunin V, Coll JL, Hurbin A, Bourgoin-Voillard S. A large scale proteome analysis of the gefitinib primary resistance overcome by KDAC inhibition in KRAS mutated adenocarcinoma cells overexpressing amphiregulin. J Proteomics 2019; 195:114-124. [PMID: 30660770 DOI: 10.1016/j.jprot.2019.01.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 01/14/2019] [Indexed: 02/06/2023]
Abstract
KDAC inhibitors (KDACi) overcome gefitinib primary resistance in non-small cell lung cancer (NSCLC) including mutant-KRAS lung adenocarcinoma. To identify which proteins are involved in the restoration of this sensitivity and to provide new therapeutic targets for mutant-KRAS lung adenocarcinoma, we performed an iTRAQ quantitative proteomic analysis after subcellular fractionation of H358-NSCLC treated with gefitinib and KDACi (TSA/NAM) versus gefitinib alone. The 86 proteins found to have been significantly dysregulated between the two conditions, were mainly involved in cellular metabolism and cell transcription processes. As expected, the pathway related to histone modifications was affected by the KDACi. Pathways known for controlling tumor development and (chemo)-resistance (miRNA biogenesis/glutathione metabolism) were affected by the KDACi/gefitinib treatment. Moreover, 57 dysregulated proteins were upstream of apoptosis (such as eEF1A2 and STAT1) and hence provide potential therapeutic targets. The inhibition by siRNA of eEF1A2 expression resulted in a slight decrease in H358-NSCLC viability. In addition, eEF1A2 and STAT1 siRNA transfections suggested that both STAT1 and eEF1A2 prevent AKT phosphorylation known for enhancing gefitinib resistance in NSCLC. Therefore, altogether our data provide new insights into proteome regulations in the context of overcoming the NSCLC resistance to gefitinib through KDACi in H358 KRAS mutated and amphiregulin-overexpressing NSCLC cells.
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Affiliation(s)
- Sylvia G Lehmann
- Univ. Grenoble Alpes, LBFA and BEeSy, PROMETHEE Proteomic Platform, Grenoble, France; Inserm, U1055, PROMETHEE Proteomic Platform, Grenoble, France; CHU Grenoble Alpes, Institut de Biologie et de Pathologie, PROMETHEE Proteomic Platform, Grenoble, France; Univ. Grenoble Alpes, ISTerre, F-38000 Grenoble, France
| | - Michel Seve
- Univ. Grenoble Alpes, LBFA and BEeSy, PROMETHEE Proteomic Platform, Grenoble, France; Inserm, U1055, PROMETHEE Proteomic Platform, Grenoble, France; CHU Grenoble Alpes, Institut de Biologie et de Pathologie, PROMETHEE Proteomic Platform, Grenoble, France
| | - Laetitia Vanwonterghem
- Cancer target and experimental therapeutics, Institute for Advanced Biosciences, INSERM U1209, CNRS UMR5301, Univ. Grenoble Alpes, F-38000 Grenoble, France
| | - Sylvie Michelland
- Univ. Grenoble Alpes, LBFA and BEeSy, PROMETHEE Proteomic Platform, Grenoble, France; Inserm, U1055, PROMETHEE Proteomic Platform, Grenoble, France; CHU Grenoble Alpes, Institut de Biologie et de Pathologie, PROMETHEE Proteomic Platform, Grenoble, France
| | - Valérie Cunin
- Univ. Grenoble Alpes, LBFA and BEeSy, PROMETHEE Proteomic Platform, Grenoble, France; Inserm, U1055, PROMETHEE Proteomic Platform, Grenoble, France; CHU Grenoble Alpes, Institut de Biologie et de Pathologie, PROMETHEE Proteomic Platform, Grenoble, France
| | - Jean-Luc Coll
- Cancer target and experimental therapeutics, Institute for Advanced Biosciences, INSERM U1209, CNRS UMR5301, Univ. Grenoble Alpes, F-38000 Grenoble, France
| | - Amandine Hurbin
- Cancer target and experimental therapeutics, Institute for Advanced Biosciences, INSERM U1209, CNRS UMR5301, Univ. Grenoble Alpes, F-38000 Grenoble, France.
| | - Sandrine Bourgoin-Voillard
- Univ. Grenoble Alpes, LBFA and BEeSy, PROMETHEE Proteomic Platform, Grenoble, France; Inserm, U1055, PROMETHEE Proteomic Platform, Grenoble, France; CHU Grenoble Alpes, Institut de Biologie et de Pathologie, PROMETHEE Proteomic Platform, Grenoble, France.
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10
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Proteomic profiling of senescent human diploid fibroblasts treated with gamma-tocotrienol. Altern Ther Health Med 2018; 18:314. [PMID: 30497457 PMCID: PMC6267793 DOI: 10.1186/s12906-018-2383-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 11/22/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND Replicative senescence of human diploid fibroblasts (HDFs) has been used as a model to study mechanisms of cellular aging. Gamma-tocotrienol (γT3) is one of the members of vitamin E family which has been shown to increase proliferation of senescent HDFs. However, the modulation of protein expressions by γT3 in senescent HDFs remains to be elucidated. Therefore, this study aimed to determine the differentially expressed proteins (DEPs) in young and senescent HDFs; and in vehicle- and γT3-treated senescent HDFs using label-free quantitative proteomics. METHODS Whole proteins were extracted and digested in-gel with trypsin. Peptides were detected by Orbitrap liquid chromatography mass spectrometry. Mass spectra were identified and quantitated by MaxQuant software. The data were further filtered and analyzed statistically using Perseus software to identify DEPs. Functional annotations of DEPs were performed using Panther Classification System. RESULTS A total of 1217 proteins were identified in young and senescent cells, while 1218 proteins in vehicle- and γT3-treated senescent cells. 11 DEPs were found in young and senescent cells which included downregulation of platelet-derived growth factor (PDGF) receptor beta and upregulation of tubulin beta-2A chain protein expressions in senescent cells. 51 DEPs were identified in vehicle- and γT3-treated senescent cells which included upregulation of 70 kDa heat shock protein, triosephosphate isomerase and malate dehydrogenase protein expressions in γT3-treated senescent cells. CONCLUSIONS PDGF signaling and cytoskeletal structure may be dysregulated in senescent HDFs. The pro-proliferative effect of γT3 on senescent HDFs may be mediated through the stimulation of cellular response to stress and carbohydrate metabolism. The expressions and roles of these proteins in relation to cellular senescence are worth further investigations. Data are available via ProteomeXchange with identifier PXD009933.
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Age-Dependent Protective Effect of Selenium against UVA Irradiation in Primary Human Keratinocytes and the Associated DNA Repair Signature. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:5895439. [PMID: 29682159 PMCID: PMC5842700 DOI: 10.1155/2018/5895439] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 10/19/2017] [Accepted: 12/03/2017] [Indexed: 02/06/2023]
Abstract
Few studies have focused on the protective role of selenium (Se) against skin aging and photoaging even though selenoproteins are essential for keratinocyte function and skin development. To the best of our knowledge, the impact of Se supplementation on skin cells from elderly and young donors has not been reported. Therefore, the main objective of our study was to evaluate the effects of Se supplementation on skin keratinocytes at baseline and after exposure to ultraviolet A (UVA) irradiation. Low doses of Se (30 nM) were very potently protective against UVA-induced cytotoxicity in young keratinocytes, whereas the protection efficiency of Se in old keratinocytes required higher concentrations (240 nM). Additionally, the DNA repair ability of the old keratinocytes drastically decreased compared with that of the young keratinocytes at baseline and after the UVA exposure. The Se supplementation significantly enhanced the DNA repair of 8-oxoguanine (8oxoG) only in the keratinocytes isolated from young donors. Therefore, aged keratinocytes have an increased vulnerability to oxidative DNA damage, and the Se needs in the elderly should be considered. Strengthening DNA repair activities with Se supplementation may represent a new strategy to combat aging and skin photoaging.
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