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Batel A, Polović M, Glumac M, Šuman O, Jadrijević S, Lozić B, Petrović M, Samardžija B, Bradshaw NJ, Skube K, Palada V, Acman M, Marinović Terzić I. SPRTN is involved in hepatocellular carcinoma development through the ER stress response. Cancer Gene Ther 2024; 31:376-386. [PMID: 38086993 DOI: 10.1038/s41417-023-00708-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 03/16/2024]
Abstract
Endoplasmic reticulum (ER) stress, prompted by the accumulation of misfolded or unfolded proteins, triggers the activation of the unfolded protein response (UPR) pathway to restore ER homeostasis. This stress response is implicated in the development of hepatocellular carcinoma (HCC). A biallelic mutation in SPRTN is currently the only known single-gene mutation implicated in the early onset of HCC. However, the exact mechanism linking SPRTN mutations to HCC remains unclear. In our study, we analyzed SPRTN and UPR in 21 human HCC tissue samples using RT-qPCR, immunoblot, and immunohistochemistry. We found alterations in the expression levels of SPRTN and UPR-related genes and proteins in HCC samples. The impact of SPRTN on the ER stress response was assessed in SPRTN-depleted HepG2 cells through RNA sequencing, pull-down assay, comet assay, and mitotic index calculation. We demonstrated that SPRTN interacts with the UPR sensor GRP78. Furthermore, we observed a decrease in SPRTN levels during ER stress, and increased sensitivity to ER stress in SPRTN-depleted cells. These findings suggest an essential role for SPRTN in the ER stress response and provide new insights into HCC pathogenesis. This newly discovered function of SPRTN could significantly enhance our understanding and treatment of HCC.
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Affiliation(s)
- Anja Batel
- Laboratory for Cancer Research, University of Split School of Medicine, Šoltanska 2, 21000, Split, Croatia
| | - Mirjana Polović
- Laboratory for Cancer Research, University of Split School of Medicine, Šoltanska 2, 21000, Split, Croatia
| | - Mateo Glumac
- Laboratory for Cancer Research, University of Split School of Medicine, Šoltanska 2, 21000, Split, Croatia
| | - Oliver Šuman
- Department of Abdominal Surgery, Merkur Clinical Hospital, Zajčeva 19, 10000, Zagreb, Croatia
| | - Stipislav Jadrijević
- Department of Abdominal Surgery, Merkur Clinical Hospital, Zajčeva 19, 10000, Zagreb, Croatia
| | - Bernarda Lozić
- Laboratory for Cancer Research, University of Split School of Medicine, Šoltanska 2, 21000, Split, Croatia
- Laboratory for Human Genetics, University Hospital Split, Spinčićeva 1, 21000, Split, Croatia
| | - Marija Petrović
- Laboratory for Human Genetics, University Hospital Split, Spinčićeva 1, 21000, Split, Croatia
| | - Bobana Samardžija
- Faculty of Biotechnology & Drug Development, University of Rijeka, Radmile Matejčić 2, 51000, Rijeka, Croatia
| | - Nicholas J Bradshaw
- Faculty of Biotechnology & Drug Development, University of Rijeka, Radmile Matejčić 2, 51000, Rijeka, Croatia
| | - Karlo Skube
- Selvita, Prilaz baruna Filipovića 29, 10000, Zagreb, Croatia
| | - Vinko Palada
- Department of Physiology, Faculty of Medicine, University of Helsinki, Haartmaninkatu 8, 00290, Helsinki, Finland
| | - Mislav Acman
- Omics solutions, trg 101. Brigade HV 1, 10000, Zagreb, Croatia
| | - Ivana Marinović Terzić
- Laboratory for Cancer Research, University of Split School of Medicine, Šoltanska 2, 21000, Split, Croatia.
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Wolf IR, Marques LF, de Almeida LF, Lázari LC, de Moraes LN, Cardoso LH, Alves CCDO, Nakajima RT, Schnepper AP, Golim MDA, Cataldi TR, Nijland JG, Pinto CM, Fioretto MN, Almeida RO, Driessen AJM, Simōes RP, Labate MV, Grotto RMT, Labate CA, Fernandes Junior A, Justulin LA, Coan RLB, Ramos É, Furtado FB, Martins C, Valente GT. Integrative Analysis of the Ethanol Tolerance of Saccharomyces cerevisiae. Int J Mol Sci 2023; 24:ijms24065646. [PMID: 36982719 PMCID: PMC10051466 DOI: 10.3390/ijms24065646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 02/25/2023] [Accepted: 03/06/2023] [Indexed: 03/18/2023] Open
Abstract
Ethanol (EtOH) alters many cellular processes in yeast. An integrated view of different EtOH-tolerant phenotypes and their long noncoding RNAs (lncRNAs) is not yet available. Here, large-scale data integration showed the core EtOH-responsive pathways, lncRNAs, and triggers of higher (HT) and lower (LT) EtOH-tolerant phenotypes. LncRNAs act in a strain-specific manner in the EtOH stress response. Network and omics analyses revealed that cells prepare for stress relief by favoring activation of life-essential systems. Therefore, longevity, peroxisomal, energy, lipid, and RNA/protein metabolisms are the core processes that drive EtOH tolerance. By integrating omics, network analysis, and several other experiments, we showed how the HT and LT phenotypes may arise: (1) the divergence occurs after cell signaling reaches the longevity and peroxisomal pathways, with CTA1 and ROS playing key roles; (2) signals reaching essential ribosomal and RNA pathways via SUI2 enhance the divergence; (3) specific lipid metabolism pathways also act on phenotype-specific profiles; (4) HTs take greater advantage of degradation and membraneless structures to cope with EtOH stress; and (5) our EtOH stress-buffering model suggests that diauxic shift drives EtOH buffering through an energy burst, mainly in HTs. Finally, critical genes, pathways, and the first models including lncRNAs to describe nuances of EtOH tolerance are reported here.
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Affiliation(s)
- Ivan Rodrigo Wolf
- Department of Bioprocess and Biotechnology, School of Agriculture, São Paulo State University (UNESP), Botucatu 18610-034, Brazil; (I.R.W.)
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, Brazil
| | - Lucas Farinazzo Marques
- Department of Bioprocess and Biotechnology, School of Agriculture, São Paulo State University (UNESP), Botucatu 18610-034, Brazil; (I.R.W.)
| | - Lauana Fogaça de Almeida
- Department of Bioprocess and Biotechnology, School of Agriculture, São Paulo State University (UNESP), Botucatu 18610-034, Brazil; (I.R.W.)
- Laboratory of Applied Biotechnology, Clinical Hospital of the Medical School, São Paulo State University (UNESP), Botucatu 18618-970, Brazil
| | - Lucas Cardoso Lázari
- Department of Bioprocess and Biotechnology, School of Agriculture, São Paulo State University (UNESP), Botucatu 18610-034, Brazil; (I.R.W.)
- Department of Parasitology, Biomedical Sciences Institute, University of São Paulo (USP), São Paulo 05508-000, Brazil
| | - Leonardo Nazário de Moraes
- Department of Bioprocess and Biotechnology, School of Agriculture, São Paulo State University (UNESP), Botucatu 18610-034, Brazil; (I.R.W.)
| | - Luiz Henrique Cardoso
- Department of Bioprocess and Biotechnology, School of Agriculture, São Paulo State University (UNESP), Botucatu 18610-034, Brazil; (I.R.W.)
| | - Camila Cristina de Oliveira Alves
- Department of Bioprocess and Biotechnology, School of Agriculture, São Paulo State University (UNESP), Botucatu 18610-034, Brazil; (I.R.W.)
| | - Rafael Takahiro Nakajima
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, Brazil
| | - Amanda Piveta Schnepper
- Department of Bioprocess and Biotechnology, School of Agriculture, São Paulo State University (UNESP), Botucatu 18610-034, Brazil; (I.R.W.)
| | - Marjorie de Assis Golim
- Laboratory of Applied Biotechnology, Clinical Hospital of the Medical School, São Paulo State University (UNESP), Botucatu 18618-970, Brazil
| | - Thais Regiani Cataldi
- Laboratório Max Feffer de Genética de Plantas, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo (USP), Piracicaba 13418-900, Brazil
| | - Jeroen G. Nijland
- Molecular Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Camila Moreira Pinto
- Department of Bioprocess and Biotechnology, School of Agriculture, São Paulo State University (UNESP), Botucatu 18610-034, Brazil; (I.R.W.)
| | - Matheus Naia Fioretto
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, Brazil
| | - Rodrigo Oliveira Almeida
- Instituto Federal de Educação, Ciência e Tecnologia do Sudeste de Minas Gerais–Campus Muriaé, Muriaé 36884-036, Brazil
| | - Arnold J. M. Driessen
- Molecular Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Rafael Plana Simōes
- Department of Bioprocess and Biotechnology, School of Agriculture, São Paulo State University (UNESP), Botucatu 18610-034, Brazil; (I.R.W.)
| | - Mônica Veneziano Labate
- Laboratório Max Feffer de Genética de Plantas, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo (USP), Piracicaba 13418-900, Brazil
| | - Rejane Maria Tommasini Grotto
- Department of Bioprocess and Biotechnology, School of Agriculture, São Paulo State University (UNESP), Botucatu 18610-034, Brazil; (I.R.W.)
- Laboratory of Applied Biotechnology, Clinical Hospital of the Medical School, São Paulo State University (UNESP), Botucatu 18618-970, Brazil
| | - Carlos Alberto Labate
- Laboratório Max Feffer de Genética de Plantas, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo (USP), Piracicaba 13418-900, Brazil
| | - Ary Fernandes Junior
- Laboratory of Bacteriology, Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, Brazil
| | - Luis Antonio Justulin
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, Brazil
| | - Rafael Luiz Buogo Coan
- Department of Biophysics and Pharmacology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, Brazil
| | - Érica Ramos
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, Brazil
| | - Fabiana Barcelos Furtado
- Laboratory of Applied Biotechnology, Clinical Hospital of the Medical School, São Paulo State University (UNESP), Botucatu 18618-970, Brazil
| | - Cesar Martins
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu 18618-689, Brazil
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Steiner UK. Senescence in Bacteria and Its Underlying Mechanisms. Front Cell Dev Biol 2021; 9:668915. [PMID: 34222238 PMCID: PMC8249858 DOI: 10.3389/fcell.2021.668915] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 05/14/2021] [Indexed: 12/11/2022] Open
Abstract
Bacteria have been thought to flee senescence by dividing into two identical daughter cells, but this notion of immortality has changed over the last two decades. Asymmetry between the resulting daughter cells after binary fission is revealed in physiological function, cell growth, and survival probabilities and is expected from theoretical understanding. Since the discovery of senescence in morphologically identical but physiologically asymmetric dividing bacteria, the mechanisms of bacteria aging have been explored across levels of biological organization. Quantitative investigations are heavily biased toward Escherichia coli and on the role of inclusion bodies—clusters of misfolded proteins. Despite intensive efforts to date, it is not evident if and how inclusion bodies, a phenotype linked to the loss of proteostasis and one of the consequences of a chain of reactions triggered by reactive oxygen species, contribute to senescence in bacteria. Recent findings in bacteria question that inclusion bodies are only deleterious, illustrated by fitness advantages of cells holding inclusion bodies under varying environmental conditions. The contributions of other hallmarks of aging, identified for metazoans, remain elusive. For instance, genomic instability appears to be age independent, epigenetic alterations might be little age specific, and other hallmarks do not play a major role in bacteria systems. What is surprising is that, on the one hand, classical senescence patterns, such as an early exponential increase in mortality followed by late age mortality plateaus, are found, but, on the other hand, identifying mechanisms that link to these patterns is challenging. Senescence patterns are sensitive to environmental conditions and to genetic background, even within species, which suggests diverse evolutionary selective forces on senescence that go beyond generalized expectations of classical evolutionary theories of aging. Given the molecular tool kits available in bacteria, the high control of experimental conditions, the high-throughput data collection using microfluidic systems, and the ease of life cell imaging of fluorescently marked transcription, translation, and proteomic dynamics, in combination with the simple demographics of growth, division, and mortality of bacteria, make the challenges surprising. The diversity of mechanisms and patterns revealed and their environmental dependencies not only present challenges but also open exciting opportunities for the discovery and deeper understanding of aging and its mechanisms, maybe beyond bacteria and aging.
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Affiliation(s)
- Ulrich Karl Steiner
- Evolutionary Demography Group, Institute of Biology, Freie Universität Berlin, Berlin, Germany
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McLoughlin HS, Moore LR, Paulson HL. Pathogenesis of SCA3 and implications for other polyglutamine diseases. Neurobiol Dis 2020; 134:104635. [PMID: 31669734 PMCID: PMC6980715 DOI: 10.1016/j.nbd.2019.104635] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 09/30/2019] [Accepted: 10/03/2019] [Indexed: 12/14/2022] Open
Abstract
Tandem repeat diseases include the neurodegenerative disorders known as polyglutamine (polyQ) diseases, caused by CAG repeat expansions in the coding regions of the respective disease genes. The nine known polyQ disease include Huntington's disease (HD), dentatorubral-pallidoluysian atrophy (DRPLA), spinal bulbar muscular atrophy (SBMA), and six spinocerebellar ataxias (SCA1, SCA2, SCA3, SCA6, SCA7, and SCA17). The underlying disease mechanism in the polyQ diseases is thought principally to reflect dominant toxic properties of the disease proteins which, when harboring a polyQ expansion, differentially interact with protein partners and are prone to aggregate. Among the polyQ diseases, SCA3 is the most common SCA, and second to HD in prevalence worldwide. Here we summarize current understanding of SCA3 disease mechanisms within the broader context of the broader polyQ disease field. We emphasize properties of the disease protein, ATXN3, and new discoveries regarding three potential pathogenic mechanisms: 1) altered protein homeostasis; 2) DNA damage and dysfunctional DNA repair; and 3) nonneuronal contributions to disease. We conclude with an overview of the therapeutic implications of recent mechanistic insights.
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Affiliation(s)
| | - Lauren R Moore
- Department of Neurology, University of Michigan, Ann Arbor, MI, USA
| | - Henry L Paulson
- Department of Neurology, University of Michigan, Ann Arbor, MI, USA.
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