1
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Deng J, Wang D, Shi Y, Lin L, Gao W, Sun Y, Song X, Li Y, Li J. Mitochondrial unfolded protein response mechanism and its cardiovascular protective effects. Biomed Pharmacother 2024; 177:116989. [PMID: 38959609 DOI: 10.1016/j.biopha.2024.116989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 06/12/2024] [Accepted: 06/15/2024] [Indexed: 07/05/2024] Open
Abstract
The mitochondrial unfolded protein response (UPRmt) is a cytoprotective response in response to cellular stress that is activated in response to mitochondrial stress to maintain intra-protein homeostasis, thereby protecting the cell from a variety of stimuli. The activation of this response has been linked to cardiovascular diseases. Here, we reviewed the current understanding of UPRmt and discussed its specific molecular mechanism, mainly in mammals, as well as addressing its protective role against cardiovascular diseases, so as to provide direction for further research on UPRmt and therapies targeting cardiovascular diseases in the future.
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Affiliation(s)
- Jinlan Deng
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Danyang Wang
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yanmei Shi
- Department of Cardiology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Lin Lin
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Weihan Gao
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yu Sun
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xiayinan Song
- Chinese University of Traditional Chinese Medicine,Beijing University of Chinese Medicine, Chaoyang, China
| | - Yunlun Li
- Department of Cardiology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Jie Li
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China.
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2
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Carneiro FS, Katashima CK, Dodge JD, Cintra DE, Pauli JR, Da Silva ASR, Ropelle ER. Tissue-specific roles of mitochondrial unfolded protein response during obesity. Obes Rev 2024:e13791. [PMID: 38880974 DOI: 10.1111/obr.13791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 03/20/2024] [Accepted: 06/02/2024] [Indexed: 06/18/2024]
Abstract
Obesity is a worldwide multifactorial disease caused by an imbalance in energy metabolism, increasing adiposity, weight gain, and promoting related diseases such as diabetes, cardiovascular diseases, neurodegeneration, and cancer. Recent findings have reported that metabolic stress related to obesity induces a mitochondrial stress response called mitochondrial unfolded protein response (UPRmt), a quality control pathway that occurs in a nuclear DNA-mitochondria crosstalk, causing transduction of chaperones and proteases under stress conditions. The duality of UPRmt signaling, with both beneficial and detrimental effects, acts in different contexts depending on the tissue, cell type, and physiological states, affecting the mitochondrial function and efficiency and the metabolism homeostasis during obesity, which remains not fully clarified. Therefore, this review discusses the most recent findings regarding UPRmt signaling during obesity, bringing an overview of UPRmt across different metabolic tissues.
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Affiliation(s)
- Fernanda S Carneiro
- Laboratory of Molecular Biology of Exercise (LaBMEx), Faculty of Applied Sciences, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Carlos K Katashima
- Laboratory of Molecular Biology of Exercise (LaBMEx), Faculty of Applied Sciences, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Joshua D Dodge
- Department of Biology, The University of Texas at Arlington (UTA), Arlington, Texas, USA
| | - Dennys E Cintra
- Laboratory of Nutritional Genomic, School of Applied Sciences, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - José Rodrigo Pauli
- Laboratory of Molecular Biology of Exercise (LaBMEx), Faculty of Applied Sciences, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
- Obesity and Comorbidities Research Center (OCRC), University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Adelino S R Da Silva
- Postgraduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Eduardo R Ropelle
- Laboratory of Molecular Biology of Exercise (LaBMEx), Faculty of Applied Sciences, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil
- Obesity and Comorbidities Research Center (OCRC), University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
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3
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Song C, Hou Y, Li T, Liu Y, Wang XA, Qu W, Li L. Lon1 Inactivation Downregulates Autophagic Flux and Brassinosteroid Biogenesis, Modulating Mitochondrial Proportion and Seed Development in Arabidopsis. Int J Mol Sci 2024; 25:5425. [PMID: 38791463 PMCID: PMC11121791 DOI: 10.3390/ijms25105425] [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: 04/02/2024] [Revised: 05/11/2024] [Accepted: 05/14/2024] [Indexed: 05/26/2024] Open
Abstract
Mitochondrial protein homeostasis is crucially regulated by protein degradation processes involving both mitochondrial proteases and cytosolic autophagy. However, it remains unclear how plant cells regulate autophagy in the scenario of lacking a major mitochondrial Lon1 protease. In this study, we observed a notable downregulation of core autophagy proteins in Arabidopsis Lon1 knockout mutant lon1-1 and lon1-2, supporting the alterations in the relative proportions of mitochondrial and vacuolar proteins over total proteins in the plant cells. To delve deeper into understanding the roles of the mitochondrial protease Lon1 and autophagy in maintaining mitochondrial protein homeostasis and plant development, we generated the lon1-2atg5-1 double mutant by incorporating the loss-of-function mutation of the autophagy core protein ATG5, known as atg5-1. The double mutant exhibited a blend of phenotypes, characterized by short plants and early senescence, mirroring those observed in the individual single mutants. Accordingly, distinct transcriptome alterations were evident in each of the single mutants, while the double mutant displayed a unique amalgamation of transcriptional responses. Heightened severity, particularly evident in reduced seed numbers and abnormal embryo development, was observed in the double mutant. Notably, aberrations in protein storage vacuoles (PSVs) and oil bodies were evident in the single and double mutants. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses of genes concurrently downregulated in lon1-2, atg5-1, and lon1-2atg5-1 unveiled a significant suppression of genes associated with brassinosteroid (BR) biosynthesis and homeostasis. This downregulation likely contributes to the observed abnormalities in seed and embryo development in the mutants.
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Affiliation(s)
| | | | | | | | | | | | - Lei Li
- Frontiers Science Center for Cell Responses, Department of Plant Biology and Ecology, College of Life Sciences, Nankai University, Tianjin 300071, China; (C.S.); (Y.H.); (T.L.); (Y.L.); (X.-A.W.); (W.Q.)
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4
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Kunová N, Ondrovičová G, Bauer JA, Krajčovičová V, Pinkas M, Stojkovičová B, Havalová H, Lukáčová V, Kohútová L, Košťan J, Martináková L, Baráth P, Nováček J, Zoll S, Kereϊche S, Kutejová E, Pevala V. Polyphosphate and tyrosine phosphorylation in the N-terminal domain of the human mitochondrial Lon protease disrupts its functions. Sci Rep 2024; 14:9923. [PMID: 38688959 PMCID: PMC11061198 DOI: 10.1038/s41598-024-60030-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 04/18/2024] [Indexed: 05/02/2024] Open
Abstract
Phosphorylation plays a crucial role in the regulation of many fundamental cellular processes. Phosphorylation levels are increased in many cancer cells where they may promote changes in mitochondrial homeostasis. Proteomic studies on various types of cancer identified 17 phosphorylation sites within the human ATP-dependent protease Lon, which degrades misfolded, unassembled and oxidatively damaged proteins in mitochondria. Most of these sites were found in Lon's N-terminal (NTD) and ATPase domains, though little is known about the effects on their function. By combining the biochemical and cryo-electron microscopy studies, we show the effect of Tyr186 and Tyr394 phosphorylations in Lon's NTD, which greatly reduce all Lon activities without affecting its ability to bind substrates or perturbing its tertiary structure. A substantial reduction in Lon's activities is also observed in the presence of polyphosphate, whose amount significantly increases in cancer cells. Our study thus provides an insight into the possible fine-tuning of Lon activities in human diseases, which highlights Lon's importance in maintaining proteostasis in mitochondria.
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Grants
- 894 Grant No. 1825144Y Grantová Agentura České Republiky
- 894 Grant No. 1825144Y Grantová Agentura České Republiky
- 894 Grant No. 1825144Y Grantová Agentura České Republiky
- StruBioMol, ITMS: 305011X666 Interreg
- StruBioMol, ITMS: 305011X666 Interreg
- StruBioMol, ITMS: 305011X666 Interreg
- StruBioMol, ITMS: 305011X666 Interreg
- StruBioMol, ITMS: 305011X666 Interreg
- UP CIISB (No. CZ.02.1.01/0.0/0.0/18_046/0015974) European Regional Development Fund, European Union
- UP CIISB (No. CZ.02.1.01/0.0/0.0/18_046/0015974) European Regional Development Fund, European Union
- BIOMEDIRES - II. stage, ITMS: 313011W428 European Regional Development Fund
- APVV-15-0375, APVV-19-0298 Agentúra na Podporu Výskumu a Vývoja
- APVV-15-0375, APVV-19-0298 Agentúra na Podporu Výskumu a Vývoja
- 2/0069/23 Vedecká Grantová Agentúra MŠVVaŠ SR a SAV
- 2/0069/23 Vedecká Grantová Agentúra MŠVVaŠ SR a SAV
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Affiliation(s)
- Nina Kunová
- Department of Biochemistry and Protein Structure, Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská Cesta 21, 845 51, Bratislava, Slovakia
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Gabriela Ondrovičová
- Department of Biochemistry and Protein Structure, Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská Cesta 21, 845 51, Bratislava, Slovakia
| | - Jacob A Bauer
- Department of Biochemistry and Protein Structure, Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská Cesta 21, 845 51, Bratislava, Slovakia
| | - Veronika Krajčovičová
- Department of Biochemistry and Protein Structure, Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská Cesta 21, 845 51, Bratislava, Slovakia
- Laboratory of Clinical and Molecular Genetics, National Institute of Children's Diseases, Limbová 1, 833 40, Bratislava, Slovakia
| | - Matyáš Pinkas
- CEITEC, Masaryk University in Brno, Brno, Czech Republic
| | - Barbora Stojkovičová
- Department of Biochemistry and Protein Structure, Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská Cesta 21, 845 51, Bratislava, Slovakia
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Henrieta Havalová
- Department of Biochemistry and Protein Structure, Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská Cesta 21, 845 51, Bratislava, Slovakia
| | | | - Lenka Kohútová
- Institute of Chemistry, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Július Košťan
- Department of Structural and Computational Biology, Max Perutz Labs, University of Vienna, Campus Vienna, Biocenter 5, 1030, Vienna, Austria
| | - Lucia Martináková
- Department of Biochemistry and Protein Structure, Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská Cesta 21, 845 51, Bratislava, Slovakia
| | - Peter Baráth
- Medirex Group Academy, Nitra, Slovakia
- Institute of Chemistry, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Jiří Nováček
- CEITEC, Masaryk University in Brno, Brno, Czech Republic
| | - Sebastian Zoll
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo Namesti 542/2, 16000, Prague, Czech Republic
| | - Sami Kereϊche
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo Namesti 542/2, 16000, Prague, Czech Republic.
| | - Eva Kutejová
- Department of Biochemistry and Protein Structure, Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská Cesta 21, 845 51, Bratislava, Slovakia.
| | - Vladimír Pevala
- Department of Biochemistry and Protein Structure, Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská Cesta 21, 845 51, Bratislava, Slovakia.
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5
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Calabrese C, Nolte H, Pitman MR, Ganesan R, Lampe P, Laboy R, Ripa R, Fischer J, Polara R, Panda SK, Chipurupalli S, Gutierrez S, Thomas D, Pitson SM, Antebi A, Robinson N. Mitochondrial translocation of TFEB regulates complex I and inflammation. EMBO Rep 2024; 25:704-724. [PMID: 38263327 PMCID: PMC10897448 DOI: 10.1038/s44319-024-00058-0] [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: 03/03/2023] [Revised: 12/06/2023] [Accepted: 12/22/2023] [Indexed: 01/25/2024] Open
Abstract
TFEB is a master regulator of autophagy, lysosome biogenesis, mitochondrial metabolism, and immunity that works primarily through transcription controlled by cytosol-to-nuclear translocation. Emerging data indicate additional regulatory interactions at the surface of organelles such as lysosomes. Here we show that TFEB has a non-transcriptional role in mitochondria, regulating the electron transport chain complex I to down-modulate inflammation. Proteomics analysis reveals extensive TFEB co-immunoprecipitation with several mitochondrial proteins, whose interactions are disrupted upon infection with S. Typhimurium. High resolution confocal microscopy and biochemistry confirms TFEB localization in the mitochondrial matrix. TFEB translocation depends on a conserved N-terminal TOMM20-binding motif and is enhanced by mTOR inhibition. Within the mitochondria, TFEB and protease LONP1 antagonistically co-regulate complex I, reactive oxygen species and the inflammatory response. Consequently, during infection, lack of TFEB specifically in the mitochondria exacerbates the expression of pro-inflammatory cytokines, contributing to innate immune pathogenesis.
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Affiliation(s)
- Chiara Calabrese
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
- Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - Hendrik Nolte
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
- Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - Melissa R Pitman
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia
| | - Raja Ganesan
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia
| | - Philipp Lampe
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Raymond Laboy
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
- Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - Roberto Ripa
- Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - Julia Fischer
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
- Centre for Molecular Medicine Cologne, Cologne, Germany
| | - Ruhi Polara
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia
| | - Sameer Kumar Panda
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Sandhya Chipurupalli
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia
| | - Saray Gutierrez
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Daniel Thomas
- Adelaide Medical School, University of Adelaide, Adelaide, Australia
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Stuart M Pitson
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia
| | - Adam Antebi
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany.
- Max Planck Institute for Biology of Ageing, Cologne, Germany.
- Adelaide Medical School, University of Adelaide, Adelaide, Australia.
| | - Nirmal Robinson
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany.
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia.
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6
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Li J, Xu P, Chen S. Research progress on mitochondria regulating tumor immunity. Zhejiang Da Xue Xue Bao Yi Xue Ban 2024; 53:1-14. [PMID: 38229501 PMCID: PMC10945498 DOI: 10.3724/zdxbyxb-2023-0484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 12/01/2023] [Indexed: 01/18/2024]
Abstract
Tumor cells adapt their metabolism to meet the demands for energy and biosynthesis. Mitochondria, pivotal organelles in the metabolic reprogramming of tumor cells, contribute to tumorigenesis and cancer progression significantly through various dysfunctions in both tumor and immune cells. Alterations in mitochondrial dynamics and metabolic signaling pathways exert crucial regulatory influence on the activation, proliferation, and differentiation of immune cells. The tumor microenvironment orchestrates the activation and functionality of tumor-infiltrating immune cells by reprogramming mitochondrial metabolism and inducing shifts in mitochondrial dynamics, thereby facilitating the establishment of a tumor immunosuppressive microenvironment. Stress-induced leakage of mitochondrial DNA contributes multifaceted regulatory effects on anti-tumor immune responses and the immunosuppressive microenvironment by activating multiple natural immune signals, including cGAS-STING, TLR9, and NLRP3. Moreover, mitochondrial DNA-mediated immunogenic cell death emerges as a promising avenue for anti-tumor immunotherapy. Additionally, mitochondrial reactive oxygen species, a crucial factor in tumorigenesis, drives the formation of tumor immunosuppressive microenvironment by changing the composition of immune cells within the tumor microenvironment. This review focuses on the intrinsic relationship between mitochondrial biology and anti-tumor immune responses from multiple angles. We explore the core role of mitochondria in the dynamic interplay between the tumor and the host to facilitate the development of targeted mitochondrial strategies for anti-tumor immunotherapy.
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Affiliation(s)
- Jing Li
- College of Life and Environmental Science, Wenzhou University, Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, Wenzhou 325035, Zhejiang Province, China.
| | - Pinglong Xu
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, China.
- Key Laboratory of Biosystem Homeostasis and Protection, Ministry of Education, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Zhejiang University, Hangzhou 310058, China.
- Institute of Intelligent Medicine, Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311200, China.
- Cancer Center, Zhejiang University, Hangzhou 310058, China.
| | - Shasha Chen
- College of Life and Environmental Science, Wenzhou University, Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, Wenzhou 325035, Zhejiang Province, China.
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7
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Mitochondrial Lon-induced mitophagy benefits hypoxic resistance via Ca 2+-dependent FUNDC1 phosphorylation at the ER-mitochondria interface. Cell Death Dis 2023; 14:199. [PMID: 36927870 PMCID: PMC10020552 DOI: 10.1038/s41419-023-05723-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 02/18/2023] [Accepted: 03/03/2023] [Indexed: 03/18/2023]
Abstract
During hypoxia, FUNDC1 acts as a mitophagy receptor and accumulates at the ER (endoplasmic reticulum)-mitochondria contact sites (EMC), also called mitochondria-associated membranes (MAM). In mitophagy, the ULK1 complex phosphorylates FUNDC1(S17) at the EMC site. However, how mitochondria sense the stress and send the signal from the inside to the outside of mitochondria to trigger mitophagy is still unclear. Mitochondrial Lon was reported to be localized at the EMC under stress although the function remained unknown. In this study, we explored the mechanism of how mitochondrial sensors of hypoxia trigger and stabilize the FUNDC1-ULK1 complex by Lon in the EMC for cell survival and cancer progression. We demonstrated that Lon is accumulated in the EMC and associated with FUNDC1-ULK1 complex to induce mitophagy via chaperone activity under hypoxia. Intriguingly, we found that Lon-induced mitophagy is through binding with mitochondrial Na+/Ca2+ exchanger (NCLX) to promote FUNDC1-ULK1-mediated mitophagy at the EMC site in vitro and in vivo. Accordingly, our findings highlight a novel mechanism responsible for mitophagy initiation under hypoxia by chaperone Lon in mitochondria through the interaction with FUNDC1-ULK1 complex at the EMC site. These findings provide a direct correlation between Lon and mitophagy on cell survival and cancer progression.
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8
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Lee D, Hong JH. Activated PyK2 and Its Associated Molecules Transduce Cellular Signaling from the Cancerous Milieu for Cancer Metastasis. Int J Mol Sci 2022; 23:ijms232415475. [PMID: 36555115 PMCID: PMC9779422 DOI: 10.3390/ijms232415475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/28/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022] Open
Abstract
PyK2 is a member of the proline-rich tyrosine kinase and focal adhesion kinase families and is ubiquitously expressed. PyK2 is mainly activated by stimuli, such as activated Src kinases and intracellular acidic pH. The mechanism of PyK2 activation in cancer cells has been addressed extensively. The up-regulation of PyK2 through overexpression and enhanced phosphorylation is a key feature of tumorigenesis and cancer migration. In this review, we summarized the cancer milieu, including acidification and cancer-associated molecules, such as chemical reagents, interactive proteins, chemokine-related molecules, calcium channels/transporters, and oxidative molecules that affect the fate of PyK2. The inhibition of PyK2 leads to a beneficial strategy to attenuate cancer cell development, including metastasis. Thus, we highlighted the effect of PyK2 on various cancer cell types and the distribution of molecules that affect PyK2 activation. In particular, we underlined the relationship between PyK2 and cancer metastasis and its potential to treat cancer cells.
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9
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Zanini G, Selleri V, De Gaetano A, Gibellini L, Malerba M, Mattioli AV, Nasi M, Apostolova N, Pinti M. Differential Expression of Lonp1 Isoforms in Cancer Cells. Cells 2022; 11:cells11233940. [PMID: 36497197 PMCID: PMC9739308 DOI: 10.3390/cells11233940] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 11/26/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022] Open
Abstract
Lonp1 is a mitochondrial protease that degrades oxidized and damaged proteins, assists protein folding, and contributes to the maintenance of mitochondrial DNA. A higher expression of LonP1 has been associated with higher tumour aggressiveness. Besides the full-length isoform (ISO1), we identified two other isoforms of Lonp1 in humans, resulting from alternative splicing: Isoform-2 (ISO2) lacking aa 42-105 and isoform-3 (ISO3) lacking aa 1-196. An inspection of the public database TSVdb showed that ISO1 was upregulated in lung, bladder, prostate, and breast cancer, ISO2 in all the cancers analysed (including rectum, colon, cervical, bladder, prostate, breast, head, and neck), ISO3 did not show significant changes between cancer and normal tissue. We overexpressed ISO1, ISO2, and ISO3 in SW620 cells and found that the ISO1 isoform was exclusively mitochondrial, ISO2 was present in the organelle and in the cytoplasm, and ISO3 was exclusively cytoplasmatic. The overexpression of ISO1 and, at a letter extent, of ISO2 enhanced basal, ATP-linked, and maximal respiration without altering the mitochondria number or network, mtDNA amount. or mitochondrial dynamics. A higher extracellular acidification rate was observed in ISO1 and ISO2, overexpressing cells, suggesting an increase in glycolysis. Cells overexpressing the different isoforms did not show a difference in the proliferation rate but showed a great increase in anchorage-independent growth. ISO1 and ISO2, but not ISO3, determined an upregulation of EMT-related proteins, which appeared unrelated to higher mitochondrial ROS production, nor due to the activation of the MEK ERK pathway, but rather to global metabolic reprogramming of cells.
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Affiliation(s)
- Giada Zanini
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Valentina Selleri
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
- National Institute for Cardiovascular Research (INRC), 40126 Bologna, Italy
| | - Anna De Gaetano
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Lara Gibellini
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia, 41124 Modena, Italy
| | - Mara Malerba
- Department of Surgical, Medical, Dental and Morphological Sciences, University of Modena and Reggio Emilia, 41124 Modena, Italy
| | - Anna Vittoria Mattioli
- National Institute for Cardiovascular Research (INRC), 40126 Bologna, Italy
- Department of Surgical, Medical, Dental and Morphological Sciences, University of Modena and Reggio Emilia, 41124 Modena, Italy
| | - Milena Nasi
- Department of Surgical, Medical, Dental and Morphological Sciences, University of Modena and Reggio Emilia, 41124 Modena, Italy
| | - Nadezda Apostolova
- Department of Pharmacology, University of Valencia, 46010 Valencia, Spain
- FISABIO—Hospital Universitario Dr. Peset, 46017 Valencia, Spain
| | - Marcello Pinti
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy
- Correspondence: ; Tel.: +39-059-205-5386
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10
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Steens JA, Salazar CRP, Staals RH. The diverse arsenal of type III CRISPR-Cas-associated CARF and SAVED effectors. Biochem Soc Trans 2022; 50:1353-1364. [PMID: 36282000 PMCID: PMC9704534 DOI: 10.1042/bst20220289] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/28/2022] [Accepted: 10/10/2022] [Indexed: 09/14/2023]
Abstract
Type III CRISPR-Cas systems make use of a multi-subunit effector complex to target foreign (m)RNA transcripts complementary to the guide/CRISPR RNA (crRNA). Base-pairing of the target RNA with specialized regions in the crRNA not only triggers target RNA cleavage, but also activates the characteristic Cas10 subunit and sets in motion a variety of catalytic activities that starts with the production of cyclic oligoadenylate (cOA) second messenger molecules. These messenger molecules can activate an extensive arsenal of ancillary effector proteins carrying the appropriate sensory domain. Notably, the CARF and SAVED effector proteins have been responsible for renewed interest in type III CRISPR-Cas due to the extraordinary diversity of defenses against invading genetic elements. Whereas only a handful of CARF and SAVED proteins have been studied so far, many of them seem to provoke abortive infection, aimed to kill the host and provide population-wide immunity. A defining feature of these effector proteins is the variety of in silico-predicted catalytic domains they are fused to. In this mini-review, we discuss all currently characterized type III-associated CARF and SAVED effector proteins, highlight a few examples of predicted CARF and SAVED proteins with interesting predicted catalytic activities, and speculate how they could contribute to type III immunity.
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Affiliation(s)
- Jurre A. Steens
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands
| | | | - Raymond H.J. Staals
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands
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11
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Marszalek J, Craig EA. Interaction of client—the scaffold on which FeS clusters are build—with J-domain protein Hsc20 and its evolving Hsp70 partners. Front Mol Biosci 2022; 9:1034453. [PMID: 36310602 PMCID: PMC9596805 DOI: 10.3389/fmolb.2022.1034453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 09/26/2022] [Indexed: 12/04/2022] Open
Abstract
In cells molecular chaperone systems consisting of Hsp70 and its obligatory J-domain protein (JDP) co-chaperones transiently interact with a myriad of client proteins—with JDPs typically recruiting their partner Hsp70 to interact with particular clients. The fundamentals of this cyclical interactions between JDP/Hsp70 systems and clients are well established. Much less is known about other aspects of JDP/Hsp70 system function, including how such systems evolved over time. Here we discuss the JDP/Hsp70 system involved in the biogenesis of iron-sulfur (FeS) clusters. Interaction between the client protein, the scaffold on which clusters are built, and its specialized JDP Hsc20 has stayed constant. However, the system’s Hsp70 has changed at least twice. In some species Hsc20’s Hsp70 partner interacts only with the scaffold, in others it has many JDP partners in addition to Hsc20 and interacts with many client proteins. Analysis of this switching of Hsp70 partners has provided insight into the insulation of JDP/Hsp70 systems from one another that can occur when more than one Hsp70 is present in a cellular compartment, as well as how competition among JDPs is balanced when an Hsp70 partner is shared amongst a number of JDPs. Of particularly broad relevance, even though the scaffold’s interactions with Hsc20 and Hsp70 are functionally critical for the biogenesis of FeS cluster-containing proteins, it is the modulation of the Hsc20-Hsp70 interaction per se that allows Hsc20 to function with such different Hsp70 partners.
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Affiliation(s)
- Jaroslaw Marszalek
- Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland
- *Correspondence: Jaroslaw Marszalek, ; Elizabeth A. Craig,
| | - Elizabeth A. Craig
- Department of Biochemistry, University of Wisconsin—Madison, Madison, WI, United States
- *Correspondence: Jaroslaw Marszalek, ; Elizabeth A. Craig,
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12
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Kuo CL, Ponneri Babuharisankar A, Lin YC, Lien HW, Lo YK, Chou HY, Tangeda V, Cheng LC, Cheng AN, Lee AYL. Mitochondrial oxidative stress in the tumor microenvironment and cancer immunoescape: foe or friend? J Biomed Sci 2022; 29:74. [PMID: 36154922 PMCID: PMC9511749 DOI: 10.1186/s12929-022-00859-2] [Citation(s) in RCA: 68] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 09/19/2022] [Indexed: 12/07/2022] Open
Abstract
The major concept of "oxidative stress" is an excess elevated level of reactive oxygen species (ROS) which are generated from vigorous metabolism and consumption of oxygen. The precise harmonization of oxidative stresses between mitochondria and other organelles in the cell is absolutely vital to cell survival. Under oxidative stress, ROS produced from mitochondria and are the major mediator for tumorigenesis in different aspects, such as proliferation, migration/invasion, angiogenesis, inflammation, and immunoescape to allow cancer cells to adapt to the rigorous environment. Accordingly, the dynamic balance of oxidative stresses not only orchestrate complex cell signaling events in cancer cells but also affect other components in the tumor microenvironment (TME). Immune cells, such as M2 macrophages, dendritic cells, and T cells are the major components of the immunosuppressive TME from the ROS-induced inflammation. Based on this notion, numerous strategies to mitigate oxidative stresses in tumors have been tested for cancer prevention or therapies; however, these manipulations are devised from different sources and mechanisms without established effectiveness. Herein, we integrate current progress regarding the impact of mitochondrial ROS in the TME, not only in cancer cells but also in immune cells, and discuss the combination of emerging ROS-modulating strategies with immunotherapies to achieve antitumor effects.
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Affiliation(s)
- Cheng-Liang Kuo
- National Institute of Cancer Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli, 35053, Taiwan
| | - Ananth Ponneri Babuharisankar
- National Institute of Cancer Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli, 35053, Taiwan.,Joint PhD Program in Molecular Medicine, NHRI & NCU, Zhunan, Miaoli, 35053, Taiwan
| | - Ying-Chen Lin
- National Institute of Cancer Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli, 35053, Taiwan
| | - Hui-Wen Lien
- National Institute of Cancer Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli, 35053, Taiwan
| | - Yu Kang Lo
- National Institute of Cancer Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli, 35053, Taiwan
| | - Han-Yu Chou
- National Institute of Cancer Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli, 35053, Taiwan
| | - Vidhya Tangeda
- National Institute of Cancer Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli, 35053, Taiwan.,Joint PhD Program in Molecular Medicine, NHRI & NCU, Zhunan, Miaoli, 35053, Taiwan
| | - Li-Chun Cheng
- Liver Research Center, Linkou Chang Gung Memorial Hospital, Taoyuan, 333, Taiwan
| | - An Ning Cheng
- Genomics Research Center, Academia Sinica, Taipei, 115, Taiwan
| | - Alan Yueh-Luen Lee
- National Institute of Cancer Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli, 35053, Taiwan. .,Joint PhD Program in Molecular Medicine, NHRI & NCU, Zhunan, Miaoli, 35053, Taiwan. .,Department of Life Sciences, College of Health Sciences and Technology, National Central University, Zhongli, Taoyuan, 32001, Taiwan. .,Graduate Institute of Biomedical Sciences, China Medical University, Taichung, 40402, Taiwan. .,Department of Biotechnology, College of Life Science, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.
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13
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The Role of Mitochondrial Quality Control in Anthracycline-Induced Cardiotoxicity: From Bench to Bedside. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:3659278. [PMID: 36187332 PMCID: PMC9519345 DOI: 10.1155/2022/3659278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 09/06/2022] [Indexed: 11/18/2022]
Abstract
Cardiotoxicity is the major side effect of anthracyclines (doxorubicin, daunorubicin, epirubicin, and idarubicin), though being the most commonly used chemotherapy drugs and the mainstay of therapy in solid and hematological neoplasms. Advances in the field of cardio-oncology have expanded our understanding of the molecular mechanisms underlying anthracycline-induced cardiotoxicity (AIC). AIC has a complex pathogenesis that includes a variety of aspects such as oxidative stress, autophagy, and inflammation. Emerging evidence has strongly suggested that the loss of mitochondrial quality control (MQC) plays an important role in the progression of AIC. Mitochondria are vital organelles in the cardiomyocytes that serve as the key regulators of reactive oxygen species (ROS) production, energy metabolism, cell death, and calcium buffering. However, as mitochondria are susceptible to damage, the MQC system, including mitochondrial dynamics (fusion/fission), mitophagy, mitochondrial biogenesis, and mitochondrial protein quality control, appears to be crucial in maintaining mitochondrial homeostasis. In this review, we summarize current evidence on the role of MQC in the pathogenesis of AIC and highlight the therapeutic potential of restoring the cardiomyocyte MQC system in the prevention and intervention of AIC.
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14
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Evidence for mitochondrial Lonp1 expression in the nucleus. Sci Rep 2022; 12:10877. [PMID: 35760833 PMCID: PMC9237102 DOI: 10.1038/s41598-022-14860-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 06/14/2022] [Indexed: 11/08/2022] Open
Abstract
The coordinated communication between the mitochondria and nucleus is essential for cellular activities. Nonetheless, the pathways involved in this crosstalk are scarcely understood. The protease Lonp1 was previously believed to be exclusively located in the mitochondria, with an important role in mitochondrial morphology, mtDNA maintenance, and cellular metabolism, in both normal and neoplastic cells. However, we recently detected Lonp1 in the nuclear, where as much as 22% of all cellular Lonp1 can be found. Nuclear localization is detectable under all conditions, but the amount is dependent on a response to heat shock (HS). Lonp1 in the nucleus interacts with heat shock factor 1 (HSF1) and modulates the HS response. These findings reveal a novel extramitochondrial function for Lonp1 in response to stress.
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15
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Markov AV, Ilyina AA, Salomatina OV, Sen’kova AV, Okhina AA, Rogachev AD, Salakhutdinov NF, Zenkova MA. Novel Soloxolone Amides as Potent Anti-Glioblastoma Candidates: Design, Synthesis, In Silico Analysis and Biological Activities In Vitro and In Vivo. Pharmaceuticals (Basel) 2022; 15:ph15050603. [PMID: 35631429 PMCID: PMC9145754 DOI: 10.3390/ph15050603] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 01/27/2023] Open
Abstract
The modification of natural or semisynthetic triterpenoids with amines can be explored as a promising strategy for improving their pharmacological properties. Here, we report the design and synthesis of 11 novel amide derivatives of soloxolone methyl (SM), a cyano enone-bearing derivative of 18βH-glycyrrhetinic acid. Analysis of their bioactivities in vitro and in silico revealed their high toxicity against a panel of tumor cells (average IC50(24 h) = 3.7 µM) and showed that the formation of amide moieties at the C-30 position of soloxolone did not enhance the cytotoxicity of derivatives toward tumor cells compared to SM, though it can impart an ability to pass across the blood–brain barrier. Further HPLC–MS/MS and mechanistic studies verified significant brain accumulation of hit compound 12 (soloxolone tryptamide) in a murine model and showed its high anti-glioblastoma potential. It was found that 12 induced ROS-dependent and autophagy-independent death of U87 and U118 glioblastoma cells via mitochondrial apoptosis and effectively blocked their clonogenicity, motility and capacity to form vessel-like structures. Further in vivo study demonstrated that intraperitoneal injection of 12 at a dosage of 20 mg/kg effectively inhibited the growth of U87 glioblastoma in a mouse xenograft model, reducing the proliferative potential of the tumor and leading to a depletion of collagen content and normalization of blood vessels in tumor tissue. The obtained results clearly demonstrate that 12 can be considered as a promising leading compound for drug development in glioblastoma treatment.
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Affiliation(s)
- Andrey V. Markov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.A.I.); (O.V.S.); (A.V.S.); (M.A.Z.)
- Correspondence: ; Tel.: +7-383-363-51-61
| | - Anna A. Ilyina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.A.I.); (O.V.S.); (A.V.S.); (M.A.Z.)
- Faculty of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia; (A.A.O.); (A.D.R.)
| | - Oksana V. Salomatina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.A.I.); (O.V.S.); (A.V.S.); (M.A.Z.)
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia;
| | - Aleksandra V. Sen’kova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.A.I.); (O.V.S.); (A.V.S.); (M.A.Z.)
| | - Alina A. Okhina
- Faculty of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia; (A.A.O.); (A.D.R.)
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia;
| | - Artem D. Rogachev
- Faculty of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia; (A.A.O.); (A.D.R.)
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia;
| | - Nariman F. Salakhutdinov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia;
| | - Marina A. Zenkova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.A.I.); (O.V.S.); (A.V.S.); (M.A.Z.)
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16
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Taouktsi E, Kyriakou E, Smyrniotis S, Borbolis F, Bondi L, Avgeris S, Trigazis E, Rigas S, Voutsinas GE, Syntichaki P. Organismal and Cellular Stress Responses upon Disruption of Mitochondrial Lonp1 Protease. Cells 2022; 11:cells11081363. [PMID: 35456042 PMCID: PMC9025075 DOI: 10.3390/cells11081363] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/09/2022] [Accepted: 04/14/2022] [Indexed: 02/01/2023] Open
Abstract
Cells engage complex surveillance mechanisms to maintain mitochondrial function and protein homeostasis. LonP1 protease is a key component of mitochondrial quality control and has been implicated in human malignancies and other pathological disorders. Here, we employed two experimental systems, the worm Caenorhabditis elegans and human cancer cells, to investigate and compare the effects of LONP-1/LonP1 deficiency at the molecular, cellular, and organismal levels. Deletion of the lonp-1 gene in worms disturbed mitochondrial function, provoked reactive oxygen species accumulation, and impaired normal processes, such as growth, behavior, and lifespan. The viability of lonp-1 mutants was dependent on the activity of the ATFS-1 transcription factor, and loss of LONP-1 evoked retrograde signaling that involved both the mitochondrial and cytoplasmic unfolded protein response (UPRmt and UPRcyt) pathways and ensuing diverse organismal stress responses. Exposure of worms to triterpenoid CDDO-Me, an inhibitor of human LonP1, stimulated only UPRcyt responses. In cancer cells, CDDO-Me induced key components of the integrated stress response (ISR), the UPRmt and UPRcyt pathways, and the redox machinery. However, genetic knockdown of LonP1 revealed a genotype-specific cellular response and induced apoptosis similar to CDDO-Me treatment. Overall, the mitochondrial dysfunction ensued by disruption of LonP1 elicits adaptive cytoprotective mechanisms that can inhibit cancer cell survival but diversely modulate organismal stress response and aging.
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Affiliation(s)
- Eirini Taouktsi
- Laboratory of Molecular Genetics of Aging, Biomedical Research Foundation of the Academy of Athens, Center of Basic Research, 11527 Athens, Greece; (E.T.); (E.K.); (F.B.); (L.B.); (E.T.)
- Department of Biotechnology, Agricultural University of Athens, 11855 Athens, Greece;
| | - Eleni Kyriakou
- Laboratory of Molecular Genetics of Aging, Biomedical Research Foundation of the Academy of Athens, Center of Basic Research, 11527 Athens, Greece; (E.T.); (E.K.); (F.B.); (L.B.); (E.T.)
| | - Stefanos Smyrniotis
- Laboratory of Molecular Carcinogenesis and Rare Disease Genetics, Institute of Biosciences and Applications, National Center for Scientific Research “Demokritos”, 15341 Athens, Greece; (S.S.); (S.A.)
| | - Fivos Borbolis
- Laboratory of Molecular Genetics of Aging, Biomedical Research Foundation of the Academy of Athens, Center of Basic Research, 11527 Athens, Greece; (E.T.); (E.K.); (F.B.); (L.B.); (E.T.)
| | - Labrina Bondi
- Laboratory of Molecular Genetics of Aging, Biomedical Research Foundation of the Academy of Athens, Center of Basic Research, 11527 Athens, Greece; (E.T.); (E.K.); (F.B.); (L.B.); (E.T.)
- Laboratory of Molecular Carcinogenesis and Rare Disease Genetics, Institute of Biosciences and Applications, National Center for Scientific Research “Demokritos”, 15341 Athens, Greece; (S.S.); (S.A.)
| | - Socratis Avgeris
- Laboratory of Molecular Carcinogenesis and Rare Disease Genetics, Institute of Biosciences and Applications, National Center for Scientific Research “Demokritos”, 15341 Athens, Greece; (S.S.); (S.A.)
| | - Efstathios Trigazis
- Laboratory of Molecular Genetics of Aging, Biomedical Research Foundation of the Academy of Athens, Center of Basic Research, 11527 Athens, Greece; (E.T.); (E.K.); (F.B.); (L.B.); (E.T.)
| | - Stamatis Rigas
- Department of Biotechnology, Agricultural University of Athens, 11855 Athens, Greece;
| | - Gerassimos E. Voutsinas
- Laboratory of Molecular Carcinogenesis and Rare Disease Genetics, Institute of Biosciences and Applications, National Center for Scientific Research “Demokritos”, 15341 Athens, Greece; (S.S.); (S.A.)
- Correspondence: (G.E.V.); (P.S.); Tel.: +30-21-0650-3579 (G.E.V.); +30-21-0659-7474 (P.S.)
| | - Popi Syntichaki
- Laboratory of Molecular Genetics of Aging, Biomedical Research Foundation of the Academy of Athens, Center of Basic Research, 11527 Athens, Greece; (E.T.); (E.K.); (F.B.); (L.B.); (E.T.)
- Correspondence: (G.E.V.); (P.S.); Tel.: +30-21-0650-3579 (G.E.V.); +30-21-0659-7474 (P.S.)
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17
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Xiang X, Bao R, Wu Y, Luo Y. Targeting Mitochondrial Proteases for Therapy of Acute Myeloid Leukemia. Br J Pharmacol 2022; 179:3268-3282. [PMID: 35352341 DOI: 10.1111/bph.15844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 03/10/2022] [Accepted: 03/17/2022] [Indexed: 02/05/2023] Open
Abstract
Targeting cancer metabolism has emerged as an attractive approach to improve therapeutic regimens in acute myeloid leukemia (AML). Mitochondrial proteases are closely related to cancer metabolism, but their biological functions have not been well characterized in AML. According to different catogory, we comprehensively reviewed the role of mitochondrial proteases in AML. This review highlights some 'powerful' mitochondrial protease targets, including their biological function, chemical modulators, and applicative prospect in AML.
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Affiliation(s)
- Xinrong Xiang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Department of Hematology and Hematology Research Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Rui Bao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yu Wu
- Department of Hematology and Hematology Research Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Youfu Luo
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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18
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Lon upregulation contributes to cisplatin resistance by triggering NCLX-mediated mitochondrial Ca 2+ release in cancer cells. Cell Death Dis 2022; 13:241. [PMID: 35296653 PMCID: PMC8927349 DOI: 10.1038/s41419-022-04668-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 02/10/2022] [Accepted: 02/16/2022] [Indexed: 11/16/2022]
Abstract
Mitochondria are the major organelles in sensing cellular stress and inducing the response for cell survival. Mitochondrial Lon has been identified as an important stress protein involved in regulating proliferation, metastasis, and apoptosis in cancer cells. However, the mechanism of retrograde signaling by Lon on mitochondrial DNA (mtDNA) damage remains to be elucidated. Here we report the role of Lon in the response to cisplatin-induced mtDNA damage and oxidative stress, which confers cancer cells on cisplatin resistance via modulating calcium levels in mitochondria and cytosol. First, we found that cisplatin treatment on oral cancer cells caused oxidative damage of mtDNA and induced Lon expression. Lon overexpression in cancer cells decreased while Lon knockdown sensitized the cytotoxicity towards cisplatin treatment. We further identified that cisplatin-induced Lon activates the PYK2-SRC-STAT3 pathway to stimulate Bcl-2 and IL-6 expression, leading to the cytotoxicity resistance to cisplatin. Intriguingly, we found that activation of this pathway is through an increase of intracellular calcium (Ca2+) via NCLX, a mitochondrial Na+/Ca2+ exchanger. We then verified that NCLX expression is dependent on Lon levels; Lon interacts with and activates NCLX activity. NCLX inhibition increased the level of mitochondrial calcium and sensitized the cytotoxicity to cisplatin in vitro and in vivo. In summary, mitochondrial Lon-induced cisplatin resistance is mediated by calcium release into cytosol through NCLX, which activates calcium-dependent PYK2-SRC-STAT3-IL-6 pathway. Thus, our work uncovers the novel retrograde signaling by mitochondrial Lon on resistance to cisplatin-induced mtDNA stress, indicating the potential use of Lon and NCLX inhibitors for better clinical outcomes in chemoresistant cancer patients.
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19
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Liu J, Peng X, Yang S, Li X, Huang M, Wei S, Zhang S, He G, Zheng H, Fan Q, Yang L, Li H. Extracellular vesicle PD-L1 in reshaping tumor immune microenvironment: biological function and potential therapy strategies. Cell Commun Signal 2022; 20:14. [PMID: 35090497 PMCID: PMC8796536 DOI: 10.1186/s12964-021-00816-w] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 12/02/2021] [Indexed: 02/08/2023] Open
Abstract
Programmed cell death 1 ligand 1 (PD-L1) is the ligand for programmed death protein-1 (PD-1), is associated with immunosuppression. Signaling via PD-1/PD-L1 will transmits negative regulatory signals to T cells, inducing T-cell inhibition, reducing CD8+ T-cell proliferation, or promoting T-cell apoptosis, which effectively reduces the immune response and leads to large-scale tumor growth. Accordingly, many antibody preparations targeting PD-1 or PD-L1 have been designed to block the binding of these two proteins and restore T-cell proliferation and cytotoxicity of T cells. However, these drugs are ineffective in clinical practice. Recently, numerous of studies have shown that, in addition to the surface of tumor cells, PD-L1 is also found on the surface of extracellular vesicles secreted by these cells. Extracellular vesicle PD-L1 can also interact with PD-1 on the surface of T cells, leading to immunosuppression, and has been proposed as a potential mechanism underlying PD-1/PD-L1-targeted drug resistance. Therefore, it is important to explore the production, regulation and tumor immunosuppression of PD-L1 on the surface of tumor cells and extracellular vesicles, as well as the potential clinical application of extracellular vesicle PD-L1 as tumor biomarkers and therapeutic targets. Video Abstract
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20
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Sheng X, Liu C, Yan G, Li G, Liu J, Yang Y, Li S, Li Z, Zhou J, Zhen X, Zhang Y, Diao Z, Hu Y, Fu C, Yao B, Li C, Cao Y, Lu B, Yang Z, Qin Y, Sun H, Ding L. The mitochondrial protease LONP1 maintains oocyte development and survival by suppressing nuclear translocation of AIFM1 in mammals. EBioMedicine 2022; 75:103790. [PMID: 34974310 PMCID: PMC8733232 DOI: 10.1016/j.ebiom.2021.103790] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 11/26/2022] Open
Abstract
Background Oogenesis is a fundamental process of human reproduction, and mitochondria play crucial roles in oocyte competence. Mitochondrial ATP-dependent Lon protease 1 (LONP1) functions as a critical protein in maintaining mitochondrial and cellular homeostasis in somatic cells. However, the essential role of LONP1 in maintaining mammalian oogenesis is far from elucidated. Methods Using conditional oocyte Lonp1-knockout mice, RNA sequencing (RNA-seq) and coimmunoprecipitation/liquid chromatography–mass spectrometry (Co-IP/LC–MS) technology, we analysed the functions of LONP1 in mammalian oogenesis. Findings Conditional knockout of Lonp1 in mouse oocytes in both the primordial and growing follicle stages impairs follicular development and causes progressive oocyte death, ovarian reserve loss, and infertility. LONP1 directly interacts with apoptosis inducing factor mitochondria-associated 1 (AIFM1), and LONP1 ablation leads to the translocation of AIFM1 from the cytoplasm to the nucleus, causing apoptosis in mouse oocytes. In addition, women with pathogenic variants of LONP1 lack large antral follicles (>10 mm) in the ovaries, are infertile and present premature ovarian insufficiency. Interpretation We demonstrated the function of LONP1 in regulating oocyte development and survival, and in-depth analysis of LONP1 will be crucial for elucidating the mechanisms underlying premature ovarian insufficiency. Funding This work was supported by grants from the National Key Research and Development Program of China (2018YFC1004701), the National Nature Science Foundation of China (82001629, 81871128, 81571391, 81401166, 82030040), the Jiangsu Province Social Development Project (BE2018602), the Jiangsu Provincial Medical Youth Talent (QNRC2016006), the Youth Program of the Natural Science Foundation of Jiangsu Province (BK20200116) and Jiangsu Province Postdoctoral Research Funding (2021K277B).
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Affiliation(s)
- Xiaoqiang Sheng
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, Jiangsu 210008, China; Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, Jiangsu 210008, China
| | - Chuanming Liu
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, Jiangsu 210008, China; Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, Jiangsu 210008, China
| | - Guijun Yan
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, Jiangsu 210008, China; Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, Jiangsu 210008, China
| | - Guangyu Li
- Center for Reproductive Medicine, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, The Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Shandong University, Jinan, Shangdong 250021, China
| | - Jingyu Liu
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, Jiangsu 210008, China; Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, Jiangsu 210008, China
| | - Yanjun Yang
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, China
| | - Shiyuan Li
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, Jiangsu 210008, China; Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, Jiangsu 210008, China
| | - Zhongxun Li
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, Jiangsu 210008, China; Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, Jiangsu 210008, China
| | - Jidong Zhou
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, Jiangsu 210008, China; Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, Jiangsu 210008, China
| | - Xin Zhen
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, Jiangsu 210008, China; Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, Jiangsu 210008, China
| | - Yang Zhang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, Jiangsu 210008, China; Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, Jiangsu 210008, China
| | - Zhenyu Diao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, Jiangsu 210008, China; Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, Jiangsu 210008, China
| | - Yali Hu
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, Jiangsu 210008, China; Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, Jiangsu 210008, China
| | - Chuanhai Fu
- School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - Bin Yao
- The Reproductive Medical Center, Nanjing Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu 210002, China
| | - Chaojun Li
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University & Model Animal Research Center, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Yu Cao
- Institute of Precision Medicine, The Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200125, China; Department of Orthopaedics, Shanghai Key Laboratory of Orthopaedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Bin Lu
- Protein Quality Control and Diseases Laboratory, Attardi Institute of Mitochondrial Biomedicine, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Zhongzhou Yang
- State Key Laboratory of Pharmaceutical Biotechnology and MOE Key Laboratory of Model Animal for Disease Study, Model Animal Research Center, Nanjing University Medical School, Nanjing, Jiangsu 210093 China
| | - Yingying Qin
- Center for Reproductive Medicine, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, The Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Shandong University, Jinan, Shangdong 250021, China.
| | - Haixiang Sun
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, Jiangsu 210008, China; Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, Jiangsu 210008, China.
| | - Lijun Ding
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Rd., Nanjing, Jiangsu 210008, China; Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, Jiangsu 210008, China; Clinical Center for Stem Cell Research, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, China; State Key Laboratory of Analytic Chemistry for Life Science, Nanjing University, Nanjing, Jiangsu 210093, China.
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21
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Zou Y, Bozhkov PV. Chlamydomonas proteases: classification, phylogeny, and molecular mechanisms. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:7680-7693. [PMID: 34468747 PMCID: PMC8643629 DOI: 10.1093/jxb/erab383] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 08/13/2021] [Indexed: 05/08/2023]
Abstract
Proteases can regulate myriad biochemical pathways by digesting or processing target proteins. While up to 3% of eukaryotic genes encode proteases, only a tiny fraction of proteases are mechanistically understood. Furthermore, most of the current knowledge about proteases is derived from studies of a few model organisms, including Arabidopsis thaliana in the case of plants. Proteases in other plant model systems are largely unexplored territory, limiting our mechanistic comprehension of post-translational regulation in plants and hampering integrated understanding of how proteolysis evolved. We argue that the unicellular green alga Chlamydomonas reinhardtii has a number of technical and biological advantages for systematic studies of proteases, including reduced complexity of many protease families and ease of cell phenotyping. With this end in view, we share a genome-wide inventory of proteolytic enzymes in Chlamydomonas, compare the protease degradomes of Chlamydomonas and Arabidopsis, and consider the phylogenetic relatedness of Chlamydomonas proteases to major taxonomic groups. Finally, we summarize the current knowledge of the biochemical regulation and physiological roles of proteases in this algal model. We anticipate that our survey will promote and streamline future research on Chlamydomonas proteases, generating new insights into proteolytic mechanisms and the evolution of digestive and limited proteolysis.
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Affiliation(s)
- Yong Zou
- Department of Molecular Sciences, Uppsala BioCenter, Swedish University of Agricultural Sciences and Linnean Center for Plant Biology, Uppsala, Sweden
| | - Peter V Bozhkov
- Department of Molecular Sciences, Uppsala BioCenter, Swedish University of Agricultural Sciences and Linnean Center for Plant Biology, Uppsala, Sweden
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22
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Sharma P, Gayen D. Plant protease as regulator and signaling molecule for enhancing environmental stress-tolerance. PLANT CELL REPORTS 2021; 40:2081-2095. [PMID: 34173047 DOI: 10.1007/s00299-021-02739-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/16/2021] [Indexed: 06/13/2023]
Abstract
Proteases are ubiquitous in prokaryotes and eukaryotes. Plant proteases are key regulators of various physiological processes, including protein homeostasis, organelle development, senescence, seed germination, protein processing, environmental stress response, and programmed cell death. Proteases are involved in the breakdown of peptide bonds resulting in irreversible posttranslational modification of the protein. Proteases act as signaling molecules that specifically regulate cellular function by cleaving and triggering receptor molecules. Peptides derived from proteolysis regulate ROS signaling under oxidative stress in the plant. It degrades misfolded and abnormal proteins into amino acids to repair the cell damage and regulates the biological process in response to environmental stress. Proteases modulate the biogenesis of phytohormones which control plant growth, development, and environmental stresses. Protein homeostasis, the overall balance between protein synthesis and proteolysis, is required for plant growth and development. Abiotic and biotic stresses are major factors that negatively impact cellular survivability, biomass production, and reduced crop yield potentials. Therefore, the identification of various stress-responsive proteases and their molecular functions may elucidate valuable information for the development of stress-resilient crops with higher yield potentials. However, the understanding of molecular mechanisms of plant protease remains unexplored. This review provides an overview of proteases related to development, signaling, and growth regulation to acclimatize environmental stress in plants.
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Affiliation(s)
- Punam Sharma
- Department of Biochemistry, Central University of Rajasthan, Ajmer, 305817, Rajasthan, India
| | - Dipak Gayen
- Department of Biochemistry, Central University of Rajasthan, Ajmer, 305817, Rajasthan, India.
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23
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D'Ippólito S, Rey-Burusco MF, Feingold SE, Guevara MG. Role of proteases in the response of plants to drought. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 168:1-9. [PMID: 34607206 DOI: 10.1016/j.plaphy.2021.09.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 08/02/2021] [Accepted: 09/28/2021] [Indexed: 05/25/2023]
Abstract
Plants are sessile organisms that, to survive they develop response mechanisms under water deficit conditions. Plant proteases play an essential role in a diversity of biological processes, among them tolerance to drought stress. Proteolysis is a critical regulator of stomatal development. Plant proteases are involved in the crosstalk among phytohormones and adjustment of stomatal aperture. Plant proteases are also related to the increment in reactive oxygen species (ROS) production detected in the plant biochemical response to drought. Plant proteases mitigate this process by degrading damaged, denatured, and aggregated proteins, remobilizing amino acids, and generating molecules involved in signal transductions. Although many roles for proteases have been proposed, molecular bases that regulate these mechanisms remain unknown. In this review, we summarize the current knowledge on the participation of proteases in the signaling pathways of plants in response to water deficit and their relationship with plant stress tolerance.
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Affiliation(s)
- Sebastián D'Ippólito
- Biological Research Institute, National Council of Scientific and Technique Research (CONICET), University of Mar del Plata, Mar del Plata (UNMDP), Argentina
| | - María Florencia Rey-Burusco
- Agrobiotechnology Laboratory, National Institute of Agrotechnology (INTA) EEA - Balcarce, Route 226, Km 73.5. DC 276, (7620), Balcarce, Argentina
| | - Sergio Enrique Feingold
- Agrobiotechnology Laboratory, National Institute of Agrotechnology (INTA) EEA - Balcarce, Route 226, Km 73.5. DC 276, (7620), Balcarce, Argentina
| | - María Gabriela Guevara
- Biological Research Institute, National Council of Scientific and Technique Research (CONICET), University of Mar del Plata, Mar del Plata (UNMDP), Argentina.
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24
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Demasi M, Augusto O, Bechara EJH, Bicev RN, Cerqueira FM, da Cunha FM, Denicola A, Gomes F, Miyamoto S, Netto LES, Randall LM, Stevani CV, Thomson L. Oxidative Modification of Proteins: From Damage to Catalysis, Signaling, and Beyond. Antioxid Redox Signal 2021; 35:1016-1080. [PMID: 33726509 DOI: 10.1089/ars.2020.8176] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Significance: The systematic investigation of oxidative modification of proteins by reactive oxygen species started in 1980. Later, it was shown that reactive nitrogen species could also modify proteins. Some protein oxidative modifications promote loss of protein function, cleavage or aggregation, and some result in proteo-toxicity and cellular homeostasis disruption. Recent Advances: Previously, protein oxidation was associated exclusively to damage. However, not all oxidative modifications are necessarily associated with damage, as with Met and Cys protein residue oxidation. In these cases, redox state changes can alter protein structure, catalytic function, and signaling processes in response to metabolic and/or environmental alterations. This review aims to integrate the present knowledge on redox modifications of proteins with their fate and role in redox signaling and human pathological conditions. Critical Issues: It is hypothesized that protein oxidation participates in the development and progression of many pathological conditions. However, no quantitative data have been correlated with specific oxidized proteins or the progression or severity of pathological conditions. Hence, the comprehension of the mechanisms underlying these modifications, their importance in human pathologies, and the fate of the modified proteins is of clinical relevance. Future Directions: We discuss new tools to cope with protein oxidation and suggest new approaches for integrating knowledge about protein oxidation and redox processes with human pathophysiological conditions. Antioxid. Redox Signal. 35, 1016-1080.
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Affiliation(s)
- Marilene Demasi
- Laboratório de Bioquímica e Biofísica, Instituto Butantan, São Paulo, Brazil
| | - Ohara Augusto
- Departamento de Bioquímica and Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Etelvino J H Bechara
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Renata N Bicev
- Departamento de Bioquímica, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Fernanda M Cerqueira
- CENTD, Centre of Excellence in New Target Discovery, Instituto Butantan, São Paulo, Brazil
| | - Fernanda M da Cunha
- Departamento de Bioquímica, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Ana Denicola
- Laboratorios Fisicoquímica Biológica-Enzimología, Facultad de Ciencias, Instituto de Química Biológica, Universidad de la República, Montevideo, Uruguay
| | - Fernando Gomes
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | - Sayuri Miyamoto
- Departamento de Bioquímica and Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Luis E S Netto
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | - Lía M Randall
- Laboratorios Fisicoquímica Biológica-Enzimología, Facultad de Ciencias, Instituto de Química Biológica, Universidad de la República, Montevideo, Uruguay
| | - Cassius V Stevani
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Leonor Thomson
- Laboratorios Fisicoquímica Biológica-Enzimología, Facultad de Ciencias, Instituto de Química Biológica, Universidad de la República, Montevideo, Uruguay
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25
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Coscia F, Löwe J. Cryo-EM structure of the full-length Lon protease from Thermus thermophilus. FEBS Lett 2021; 595:2691-2700. [PMID: 34591981 PMCID: PMC8835725 DOI: 10.1002/1873-3468.14199] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/24/2021] [Accepted: 09/24/2021] [Indexed: 11/30/2022]
Abstract
In bacteria, Lon is a large hexameric ATP‐dependent protease that targets misfolded and also folded substrates, some of which are involved in cell division and survival of cellular stress. The N‐terminal domain of Lon facilitates substrate recognition, but how the domains confer such activity has remained unclear. Here, we report the full‐length structure of Lon protease from Thermus thermophilus at 3.9 Å resolution in a substrate‐engaged state. The six N‐terminal domains are arranged in three pairs, stabilized by coiled‐coil segments and forming an additional channel for substrate sensing and entry into the AAA+ ring. Sequence conservation analysis and proteolysis assays confirm that this architecture is required for the degradation of both folded and unfolded substrates in bacteria.
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Affiliation(s)
- Francesca Coscia
- MRC Laboratory of Molecular Biology, Cambridge Biomedical Campus, Cambridge, UK
| | - Jan Löwe
- MRC Laboratory of Molecular Biology, Cambridge Biomedical Campus, Cambridge, UK
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26
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Cheng AN, Cheng LC, Kuo CL, Lo YK, Chou HY, Chen CH, Wang YH, Chuang TH, Cheng SJ, Lee AYL. Mitochondrial Lon-induced mtDNA leakage contributes to PD-L1-mediated immunoescape via STING-IFN signaling and extracellular vesicles. J Immunother Cancer 2021; 8:jitc-2020-001372. [PMID: 33268351 PMCID: PMC7713199 DOI: 10.1136/jitc-2020-001372] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/05/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Mitochondrial Lon is a chaperone and DNA-binding protein that functions in protein quality control and stress response pathways. The level of Lon regulates mitochondrial DNA (mtDNA) metabolism and the production of mitochondrial reactive oxygen species (ROS). However, there is little information in detail on how mitochondrial Lon regulates ROS-dependent cancer immunoescape through mtDNA metabolism in the tumor microenvironment (TME). METHODS We explored the understanding of the intricate interplay between mitochondria and the innate immune response in the inflammatory TME. RESULTS We found that oxidized mtDNA is released into the cytosol when Lon is overexpressed and then it induces interferon (IFN) signaling via cGAS-STING-TBK1, which upregulates PD-L1 and IDO-1 expression to inhibit T-cell activation. Unexpectedly, upregulation of Lon also induces the secretion of extracellular vehicles (EVs), which carry mtDNA and PD-L1. Lon-induced EVs further induce the production of IFN and IL-6 from macrophages, which attenuates T-cell immunity in the TME. CONCLUSIONS The levels of mtDNA and PD-L1 in EVs in patients with oral cancer function as a potential diagnostic biomarker for anti-PD-L1 immunotherapy. Our studies provide an insight into the immunosuppression on mitochondrial stress and suggest a therapeutic synergy between anti-inflammation therapy and immunotherapy in cancer.
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Affiliation(s)
- An Ning Cheng
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Miaoli, Taiwan
| | - Li-Chun Cheng
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Miaoli, Taiwan
| | - Cheng-Liang Kuo
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Miaoli, Taiwan
| | - Yu Kang Lo
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Miaoli, Taiwan
| | - Han-Yu Chou
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Miaoli, Taiwan
| | - Chung-Hsing Chen
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Miaoli, Taiwan
| | - Yi-Hao Wang
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Miaoli, Taiwan
| | - Tsung-Hsien Chuang
- Immunology Research Center, National Health Research Institutes, Zhunan, Miaoli, Taiwan
| | - Shih-Jung Cheng
- School of Dentistry, National Taiwan University, Taipei, Taiwan.,Department of Dentistry, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Alan Yueh-Luen Lee
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Miaoli, Taiwan .,Department of Biotechnology, College of Life Science, Kaohsiung Medical University, Kaohsiung, Taiwan.,Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
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27
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Matsushima Y, Takahashi K, Yue S, Fujiyoshi Y, Yoshioka H, Aihara M, Setoyama D, Uchiumi T, Fukuchi S, Kang D. Mitochondrial Lon protease is a gatekeeper for proteins newly imported into the matrix. Commun Biol 2021; 4:974. [PMID: 34400774 PMCID: PMC8368198 DOI: 10.1038/s42003-021-02498-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 07/30/2021] [Indexed: 12/29/2022] Open
Abstract
Human ATP-dependent Lon protease (LONP1) forms homohexameric, ring-shaped complexes. Depletion of LONP1 causes aggregation of a broad range of proteins in the mitochondrial matrix and decreases the levels of their soluble forms. The ATP hydrolysis activity, but not protease activity, of LONP1 is critical for its chaperone-like anti-aggregation activity. LONP1 forms a complex with the import machinery and an incoming protein, and protein aggregation is linked with matrix protein import. LONP1 also contributes to the degradation of imported, aberrant, unprocessed proteins using its protease activity. Taken together, our results show that LONP1 functions as a gatekeeper for specific proteins imported into the mitochondrial matrix. Yuichi Matsushima et al. revealed that Human ATP-dependent Lon protease (LONP1), a mitochondrial protease with unfolding activity, serves as a gatekeeper for several mitochondrial matrix entering proteins: supporting the folding of required proteins and degrading the aberrant ones.
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Affiliation(s)
- Yuichi Matsushima
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Kazuya Takahashi
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Song Yue
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yuki Fujiyoshi
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Hideaki Yoshioka
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Masamune Aihara
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Daiki Setoyama
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Takeshi Uchiumi
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Satoshi Fukuchi
- Department of Life Science and Informatics, Maebashi Institute of Technology, Maebashi, Gunma, Japan
| | - Dongchon Kang
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
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28
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Silva-Pinheiro P, Pardo-Hernández C, Reyes A, Tilokani L, Mishra A, Cerutti R, Li S, Rozsivalova DH, Valenzuela S, Dogan SA, Peter B, Fernández-Silva P, Trifunovic A, Prudent J, Minczuk M, Bindoff L, Macao B, Zeviani M, Falkenberg M, Viscomi C. DNA polymerase gamma mutations that impair holoenzyme stability cause catalytic subunit depletion. Nucleic Acids Res 2021; 49:5230-5248. [PMID: 33956154 PMCID: PMC8136776 DOI: 10.1093/nar/gkab282] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 03/29/2021] [Accepted: 04/08/2021] [Indexed: 01/31/2023] Open
Abstract
Mutations in POLG, encoding POLγA, the catalytic subunit of the mitochondrial DNA polymerase, cause a spectrum of disorders characterized by mtDNA instability. However, the molecular pathogenesis of POLG-related diseases is poorly understood and efficient treatments are missing. Here, we generate the PolgA449T/A449T mouse model, which reproduces the A467T change, the most common human recessive mutation of POLG. We show that the mouse A449T mutation impairs DNA binding and mtDNA synthesis activities of POLγ, leading to a stalling phenotype. Most importantly, the A449T mutation also strongly impairs interactions with POLγB, the accessory subunit of the POLγ holoenzyme. This allows the free POLγA to become a substrate for LONP1 protease degradation, leading to dramatically reduced levels of POLγA in A449T mouse tissues. Therefore, in addition to its role as a processivity factor, POLγB acts to stabilize POLγA and to prevent LONP1-dependent degradation. Notably, we validated this mechanism for other disease-associated mutations affecting the interaction between the two POLγ subunits. We suggest that targeting POLγA turnover can be exploited as a target for the development of future therapies.
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Affiliation(s)
- Pedro Silva-Pinheiro
- MRC/University of Cambridge Mitochondrial Biology Unit, Hills Road, CB2 0XY Cambridge, UK
| | - Carlos Pardo-Hernández
- Department of Medical Biochemistry and Cell Biology, University of Gothenburg, Medicinaregatan 9A P.O. Box 440, SE405 30 Gothenburg, Sweden
| | - Aurelio Reyes
- MRC/University of Cambridge Mitochondrial Biology Unit, Hills Road, CB2 0XY Cambridge, UK
| | - Lisa Tilokani
- MRC/University of Cambridge Mitochondrial Biology Unit, Hills Road, CB2 0XY Cambridge, UK
| | - Anup Mishra
- Department of Medical Biochemistry and Cell Biology, University of Gothenburg, Medicinaregatan 9A P.O. Box 440, SE405 30 Gothenburg, Sweden
| | - Raffaele Cerutti
- Department of Neurosciences, University of Padova, via Giustiniani, 2-35128 Padova, Italy
| | - Shuaifeng Li
- Center for Cancer Biology, Life Science of Institution, Zhejiang University, Hangzhou 310058, China
| | - Dieu-Hien Rozsivalova
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine (CMMC), University of Cologne, Joseph-Stelzmann-Strasse 26, 50931 Cologne, Germany
| | - Sebastian Valenzuela
- Department of Medical Biochemistry and Cell Biology, University of Gothenburg, Medicinaregatan 9A P.O. Box 440, SE405 30 Gothenburg, Sweden
| | - Sukru A Dogan
- Department of Molecular Biology and Genetics, Center for Life Sciences and Technologies, Bogazici University, 34342 Istanbul, Turkey
| | - Bradley Peter
- Department of Medical Biochemistry and Cell Biology, University of Gothenburg, Medicinaregatan 9A P.O. Box 440, SE405 30 Gothenburg, Sweden
| | - Patricio Fernández-Silva
- Biochemistry and Molecular and Cell Biology Department, University of Zaragoza, C/ Pedro Cerbuna s/n 50.009-Zaragoza, and Biocomputation and Complex Systems Physics Institute (BIFI), C/ Mariano Esquillor, 50.018-Zaragoza, Spain
| | - Aleksandra Trifunovic
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine (CMMC), University of Cologne, Joseph-Stelzmann-Strasse 26, 50931 Cologne, Germany
| | - Julien Prudent
- MRC/University of Cambridge Mitochondrial Biology Unit, Hills Road, CB2 0XY Cambridge, UK
| | - Michal Minczuk
- MRC/University of Cambridge Mitochondrial Biology Unit, Hills Road, CB2 0XY Cambridge, UK
| | - Laurence Bindoff
- Department of Clinical Medicine, University of Bergen, 5007 Bergen, Norway
- Neuro-SysMed, Department of Neurology, Haukeland University Hospital, Jonas Lies vei 65, 5021 Bergen, Norway
| | - Bertil Macao
- Department of Medical Biochemistry and Cell Biology, University of Gothenburg, Medicinaregatan 9A P.O. Box 440, SE405 30 Gothenburg, Sweden
| | - Massimo Zeviani
- Department of Neurosciences, University of Padova, via Giustiniani, 2-35128 Padova, Italy
- Venetian Institute of Molecular Medicine, via Orus 2-35128 Padova, Italy
| | - Maria Falkenberg
- Department of Medical Biochemistry and Cell Biology, University of Gothenburg, Medicinaregatan 9A P.O. Box 440, SE405 30 Gothenburg, Sweden
| | - Carlo Viscomi
- Department of Biomedical Sciences, University of Padova, via Ugo Bassi 58/B-35131 Padova, Italy
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29
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Ferri A, Yan X, Kuang J, Granata C, Oliveira RSF, Hedges CP, Lima-Silva AE, Billaut F, Bishop DJ. Fifteen days of moderate normobaric hypoxia does not affect mitochondrial function, and related genes and proteins, in healthy men. Eur J Appl Physiol 2021; 121:2323-2336. [PMID: 33988746 DOI: 10.1007/s00421-021-04706-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 04/28/2021] [Indexed: 11/28/2022]
Abstract
PURPOSE To investigate within the one study potential molecular and cellular changes associated with mitochondrial biogenesis following 15 days of exposure to moderate hypoxia. METHODS Eight males underwent a muscle biopsy before and after 15 days of hypoxia exposure (FiO2 = 0.140-0.154; ~ 2500-3200 m) in a hypoxic hotel. Mitochondrial respiration, citrate synthase (CS) activity, and the content of genes and proteins associated with mitochondrial biogenesis were investigated. RESULTS Our main findings were the absence of significant changes in the mean values of CS activity, mitochondrial respiration in permeabilised fibers, or the content of genes and proteins associated with mitochondrial biogenesis, after 15 days of moderate normobaric hypoxia. CONCLUSION Our data provide evidence that 15 days of moderate normobaric hypoxia have negligible influence on skeletal muscle mitochondrial content and function, or genes and proteins content associated with mitochondrial biogenesis, in young recreationally active males. However, the increase in mitochondrial protease LON content after hypoxia exposure suggests the possibility of adaptations to optimise respiratory chain function under conditions of reduced O2 availability.
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Affiliation(s)
- Alessandra Ferri
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
| | - Xu Yan
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
| | - Jujiao Kuang
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
| | - Cesare Granata
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia.,Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, VIC, Australia
| | | | | | - Adriano E Lima-Silva
- Human Performance Research Group, Federal University of Technology-Parana (UTFPR), Curitiba, Brazil
| | - Francois Billaut
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia.,Département de Kinésiologie, Université Laval, Québec, Canada
| | - David J Bishop
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia.
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30
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Kingsley LJ, He X, McNeill M, Nelson J, Nikulin V, Ma Z, Lu W, Zhou VW, Manuia M, Kreusch A, Gao MY, Witmer D, Vaillancourt MT, Lu M, Greenblatt S, Lee C, Vashisht A, Bender S, Spraggon G, Michellys PY, Jia Y, Haling JR, Lelais G. Structure-Based Design of Selective LONP1 Inhibitors for Probing In Vitro Biology. J Med Chem 2021; 64:4857-4869. [PMID: 33821636 DOI: 10.1021/acs.jmedchem.0c02152] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
LONP1 is an AAA+ protease that maintains mitochondrial homeostasis by removing damaged or misfolded proteins. Elevated activity and expression of LONP1 promotes cancer cell proliferation and resistance to apoptosis-inducing reagents. Despite the importance of LONP1 in human biology and disease, very few LONP1 inhibitors have been described in the literature. Herein, we report the development of selective boronic acid-based LONP1 inhibitors using structure-based drug design as well as the first structures of human LONP1 bound to various inhibitors. Our efforts led to several nanomolar LONP1 inhibitors with little to no activity against the 20S proteasome that serve as tool compounds to investigate LONP1 biology.
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Affiliation(s)
- Laura J Kingsley
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Xiaohui He
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Matthew McNeill
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - John Nelson
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Victor Nikulin
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Zhiwei Ma
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Wenshuo Lu
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Vicki W Zhou
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Mari Manuia
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Andreas Kreusch
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Mu-Yun Gao
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Darbi Witmer
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Mei-Ting Vaillancourt
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Min Lu
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Sarah Greenblatt
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Christian Lee
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Ajay Vashisht
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Steven Bender
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Glen Spraggon
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Pierre-Yves Michellys
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Yong Jia
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Jacob R Haling
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
| | - Gérald Lelais
- Genomics Institute of the Novartis Research Foundation, 10675 John J. Hopkins Dr., San Diego, California 92121, United States
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Zhan R, Guo W, Gao X, Liu X, Xu K, Tang B. Real-time in situ monitoring of Lon and Caspase-3 for assessing the state of cardiomyocytes under hypoxic conditions via a novel Au-Se fluorescent nanoprobe. Biosens Bioelectron 2021; 176:112965. [PMID: 33421759 DOI: 10.1016/j.bios.2021.112965] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 12/23/2020] [Accepted: 12/30/2020] [Indexed: 12/22/2022]
Abstract
Myocardial dysfunction caused by cardiomyocyte apoptosis under ischemic and hypoxic conditions is the pathological basis of most cardiovascular diseases. Current diagnosis of myocardial dysfunction still focuses on the symptomatic stage, usually after the occurrence of the irreversible remodelling and functional impairment. Thus, early stage identification of the apoptotic cardiomyocytes induced by hypoxia is highly significant for preventing the onset and delaying the progression of myocardial dysfunction. Herein, a novel Au-Se nanoprobe with strong anti-interference capability was developed for simultaneous real-time in situ monitoring the expression of Lon protease (Lon) and Caspase-3 with high-fidelity in living cardiomyocytes. As Lon upregulation plays a major role in the initiation of hypoxia-induced apoptosis and Caspase-3 is a marker protein for apoptosis, the nanoprobe has been successfully applied for imaging the activation of Lon-Caspase-3 apoptotic signalling pathway and assessing the state of cardiomyocytes under hypoxic conditions. Furthermore, combining with mitochondrial H2O2 probe-MitoPY1, the nanoprobe was also used to confirm the synergistic effect of Lon and ROS on hypoxia-induced apoptosis of cardiomyocytes and evaluate the function of ROS scavenger on attenuating such apoptosis. This work proposed a promising strategy for early diagnosis, prevention and treatment of hypoxic-ischemic myocardial dysfunction.
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Affiliation(s)
- Renhui Zhan
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, PR China; Medicine & Pharmacy Research Center, Binzhou Medical University, Shandong, Yantai, 264003, PR China
| | - Wenfei Guo
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, PR China
| | - Xiaonan Gao
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, PR China
| | - Xiaojun Liu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, PR China
| | - Kehua Xu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, PR China.
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, PR China
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Comparative Proteome Research in a Zebrafish Model for Vanishing White Matter Disease. Int J Mol Sci 2021; 22:ijms22052707. [PMID: 33800130 PMCID: PMC7962458 DOI: 10.3390/ijms22052707] [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: 02/17/2021] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 01/30/2023] Open
Abstract
Vanishing white matter (VWM) disease is a genetic leukodystrophy leading to severe neurological disease and early death. VWM is caused by bi-allelic mutations in any of the five genes encoding the subunits of the eukaryotic translation factor 2B (EIF2B). Previous studies have attempted to investigate the molecular mechanism of VWN by constructing models for each subunit of EIF2B that causes VWM disease. The underlying molecular mechanisms of the way in which mutations in EIF2B3 result in VWM are largely unknown. Based on our recent results, we generated an eif2b3 knockout (eif2b3-/-) zebrafish model and performed quantitative proteomic analysis between the wild-type (WT) and eif2b3-/- zebrafish, and identified 25 differentially expressed proteins. Four proteins were significantly upregulated, and 21 proteins were significantly downregulated in eif2b3-/- zebrafish compared to WT. Lon protease and the neutral amino acid transporter SLC1A4 were significantly increased in eif2b3-/- zebrafish, and crystallin proteins were significantly decreased. The differential expression of proteins was confirmed by the evaluation of mRNA levels in eif2b3-/- zebrafish, using whole-mount in situ hybridization analysis. This study identified proteins which candidates as key regulators of the progression of VWN disease, using quantitative proteomic analysis in the first EIF2B3 animal model of VWN disease.
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Zhou H, Ren J, Toan S, Mui D. Role of mitochondrial quality surveillance in myocardial infarction: From bench to bedside. Ageing Res Rev 2021; 66:101250. [PMID: 33388396 DOI: 10.1016/j.arr.2020.101250] [Citation(s) in RCA: 135] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 12/10/2020] [Accepted: 12/22/2020] [Indexed: 12/17/2022]
Abstract
Myocardial infarction (MI) is the irreversible death of cardiomyocyte secondary to prolonged lack of oxygen or fresh blood supply. Historically considered as merely cardiomyocyte powerhouse that manufactures ATP and other metabolites, mitochondrion is recently being identified as a signal regulator that is implicated in the crosstalk and signal integration of cardiomyocyte contraction, metabolism, inflammation, and death. Mitochondria quality surveillance is an integrated network system modifying mitochondrial structure and function through the coordination of various processes including mitochondrial fission, fusion, biogenesis, bioenergetics, proteostasis, and degradation via mitophagy. Mitochondrial fission favors the elimination of depolarized mitochondria through mitophagy, whereas mitochondrial fusion preserves the mitochondrial network upon stress through integration of two or more small mitochondria into an interconnected phenotype. Mitochondrial biogenesis represents a regenerative program to replace old and damaged mitochondria with new and healthy ones. Mitochondrial bioenergetics is regulated by a metabolic switch between glucose and fatty acid usage, depending on oxygen availability. To maintain the diversity and function of mitochondrial proteins, a specialized protein quality control machinery regulates protein dynamics and function through the activity of chaperones and proteases, and induction of the mitochondrial unfolded protein response. In this review, we provide an overview of the molecular mechanisms governing mitochondrial quality surveillance and highlight the most recent preclinical and clinical therapeutic approaches to restore mitochondrial fitness during both MI and post-MI heart failure.
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Affiliation(s)
- Hao Zhou
- Department of Cardiology, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing 100853, China.
| | - Jun Ren
- Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, WY 82071, USA
| | - Sam Toan
- Department of Chemical Engineering, University of Minnesota-Duluth, Duluth, MN 55812, USA
| | - David Mui
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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Maneix L, Sweeney MA, Lee S, Iakova P, Moree SE, Sahin E, Lulla P, Yellapragada SV, Tsai FTF, Catic A. The Mitochondrial Protease LonP1 Promotes Proteasome Inhibitor Resistance in Multiple Myeloma. Cancers (Basel) 2021; 13:843. [PMID: 33671345 PMCID: PMC7922145 DOI: 10.3390/cancers13040843] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/30/2021] [Accepted: 02/11/2021] [Indexed: 12/02/2022] Open
Abstract
Multiple myeloma and its precursor plasma cell dyscrasias affect 3% of the elderly population in the US. Proteasome inhibitors are an essential part of several standard drug combinations used to treat this incurable cancer. These drugs interfere with the main pathway of protein degradation and lead to the accumulation of damaged proteins inside cells. Despite promising initial responses, multiple myeloma cells eventually become drug resistant in most patients. The biology behind relapsed/refractory multiple myeloma is complex and poorly understood. Several studies provide evidence that in addition to the proteasome, mitochondrial proteases can also contribute to protein quality control outside of mitochondria. We therefore hypothesized that mitochondrial proteases might counterbalance protein degradation in cancer cells treated with proteasome inhibitors. Using clinical and experimental data, we found that overexpression of the mitochondrial matrix protease LonP1 (Lon Peptidase 1) reduces the efficacy of proteasome inhibitors. Some proteasome inhibitors partially crossinhibit LonP1. However, we show that the resistance effect of LonP1 also occurs when using drugs that do not block this protease, suggesting that LonP1 can compensate for loss of proteasome activity. These results indicate that targeting both the proteasome and mitochondrial proteases such as LonP1 could be beneficial for treatment of multiple myeloma.
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Affiliation(s)
- Laure Maneix
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA; (L.M.); (M.A.S.); (P.I.); (S.E.M.); (F.T.F.T.)
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA;
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX 77030, USA
- Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX 77030, USA;
| | - Melanie A. Sweeney
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA; (L.M.); (M.A.S.); (P.I.); (S.E.M.); (F.T.F.T.)
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA;
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX 77030, USA
- Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX 77030, USA;
| | - Sukyeong Lee
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA;
| | - Polina Iakova
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA; (L.M.); (M.A.S.); (P.I.); (S.E.M.); (F.T.F.T.)
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA;
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Shannon E. Moree
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA; (L.M.); (M.A.S.); (P.I.); (S.E.M.); (F.T.F.T.)
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA;
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX 77030, USA
- Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX 77030, USA;
| | - Ergun Sahin
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA;
| | - Premal Lulla
- Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX 77030, USA;
- Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA;
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Sarvari V. Yellapragada
- Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA;
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
- Michael E. DeBakey VA Medical Center, Houston, TX 77030, USA
| | - Francis T. F. Tsai
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA; (L.M.); (M.A.S.); (P.I.); (S.E.M.); (F.T.F.T.)
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX 77030, USA;
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Andre Catic
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA; (L.M.); (M.A.S.); (P.I.); (S.E.M.); (F.T.F.T.)
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA;
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX 77030, USA
- Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX 77030, USA;
- Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
- Michael E. DeBakey VA Medical Center, Houston, TX 77030, USA
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LONP1 and mtHSP70 cooperate to promote mitochondrial protein folding. Nat Commun 2021; 12:265. [PMID: 33431889 PMCID: PMC7801493 DOI: 10.1038/s41467-020-20597-z] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 12/10/2020] [Indexed: 01/23/2023] Open
Abstract
Most mitochondrial precursor polypeptides are imported from the cytosol into the mitochondrion, where they must efficiently undergo folding. Mitochondrial precursors are imported as unfolded polypeptides. For proteins of the mitochondrial matrix and inner membrane, two separate chaperone systems, HSP60 and mitochondrial HSP70 (mtHSP70), facilitate protein folding. We show that LONP1, an AAA+ protease of the mitochondrial matrix, works with the mtHSP70 chaperone system to promote mitochondrial protein folding. Inhibition of LONP1 results in aggregation of a protein subset similar to that caused by knockdown of DNAJA3, a co-chaperone of mtHSP70. LONP1 is required for DNAJA3 and mtHSP70 solubility, and its ATPase, but not its protease activity, is required for this function. In vitro, LONP1 shows an intrinsic chaperone-like activity and collaborates with mtHSP70 to stabilize a folding intermediate of OXA1L. Our results identify LONP1 as a critical factor in the mtHSP70 folding pathway and demonstrate its proposed chaperone activity. Most mitochondrial proteins are imported from the cytosol and must fold in the mitochondria. Here, the authors show that the mitochondrial protease LONP1 plays a critical role in the mtHSP70 chaperone system independently of its protease activity.
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36
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Dang Y, Wei Y, Wang Y, Liu S, Julia C, Zhang SH. Cleavage of PrePL by Lon promotes growth and pathogenesis in Magnaporthe oryzae. Environ Microbiol 2020; 23:4881-4895. [PMID: 33225564 DOI: 10.1111/1462-2920.15335] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 10/30/2020] [Accepted: 11/19/2020] [Indexed: 11/28/2022]
Abstract
ATP-dependent Lon proteases function in bacterial pathogenesis by regulating the expression of the Type III secretion system; however, little is known about how Lon proteases regulate fungal pathogenesis. We previously investigated Lon-binding proteins involved in fungal pathogenesis that interact with PrePL, the smallest Magnaporthe oryzae Lon-binding protein. Here, we show that Lon cleaves PrePL and produces Pc, an extracellular 11-kDa isoform with catalase and peroxidase activity. The ΔPrePL loss-of-function strain showed stronger sporulation and accelerated disease development, suggesting a temporally specific negative regulatory mechanism controlled by PrePL in disease progression. Neither the truncated Pc, nor the full-length PrePL missing the Lon cleavage site complemented the ΔPrePL phenotype, suggesting that full-length PrePL and Pc both function in fungal development. PrePL targeted to the mitochondria undergoes hydrolysis by Lon to produce Pc, which accumulates in the fungal apoplast. Importantly, recombinant Pc induced plant defence responses and cell death after being infiltrated into selected plant leaves, indicating that it functions as an avirulence factor. This work thus reveals a novel pathogenic factor in the fungal Lon-mediated pathway. Additionally, our results provide new insight into the functions of a full-length protein and its cleaved isoform in fungal pathogenesis.
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Affiliation(s)
- Yuejia Dang
- College of Plant Sciences, Jilin University, Changchun, 130062, China
| | - Yi Wei
- College of Plant Sciences, Jilin University, Changchun, 130062, China.,College of Plant Protection, Shenyang Agricultural University, Shenyang, 110866, China
| | - Yanyan Wang
- College of Plant Sciences, Jilin University, Changchun, 130062, China
| | - Shaoshuai Liu
- College of Plant Sciences, Jilin University, Changchun, 130062, China.,Institute of Phytopathology, Centre for BioSystems, Land Use and Nutrition, Justus Liebig University, Giessen, Heinrich Buff-Ring 26-32, D-35392, Germany
| | - Chekanova Julia
- College of Plant Protection, Shenyang Agricultural University, Shenyang, 110866, China
| | - Shi-Hong Zhang
- College of Plant Sciences, Jilin University, Changchun, 130062, China.,College of Plant Protection, Shenyang Agricultural University, Shenyang, 110866, China
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37
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Skeletal Phenotypes Due to Abnormalities in Mitochondrial Protein Homeostasis and Import. Int J Mol Sci 2020; 21:ijms21218327. [PMID: 33171986 PMCID: PMC7664180 DOI: 10.3390/ijms21218327] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/28/2020] [Accepted: 11/03/2020] [Indexed: 12/19/2022] Open
Abstract
Mitochondrial disease represents a collection of rare genetic disorders caused by mitochondrial dysfunction. These disorders can be quite complex and heterogeneous, and it is recognized that mitochondrial disease can affect any tissue at any age. The reasons for this variability are not well understood. In this review, we develop and expand a subset of mitochondrial diseases including predominantly skeletal phenotypes. Understanding how impairment ofdiverse mitochondrial functions leads to a skeletal phenotype will help diagnose and treat patients with mitochondrial disease and provide additional insight into the growing list of human pathologies associated with mitochondrial dysfunction. The underlying disease genes encode factors involved in various aspects of mitochondrial protein homeostasis, including proteases and chaperones, mitochondrial protein import machinery, mediators of inner mitochondrial membrane lipid homeostasis, and aminoacylation of mitochondrial tRNAs required for translation. We further discuss a complex of frequently associated phenotypes (short stature, cataracts, and cardiomyopathy) potentially explained by alterations to steroidogenesis, a process regulated by mitochondria. Together, these observations provide novel insight into the consequences of impaired mitochondrial protein homeostasis.
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38
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Venkatesh S, Baljinnyam E, Tong M, Kashihara T, Yan L, Liu T, Li H, Xie LH, Nakamura M, Oka SI, Suzuki CK, Fraidenraich D, Sadoshima J. Proteomic analysis of mitochondrial biogenesis in cardiomyocytes differentiated from human induced pluripotent stem cells. Am J Physiol Regul Integr Comp Physiol 2020; 320:R547-R562. [PMID: 33112656 DOI: 10.1152/ajpregu.00207.2020] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Mitochondria play key roles in the differentiation and maturation of human cardiomyocytes (CMs). As human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) hold potential in the treatment of heart diseases, we sought to identify key mitochondrial pathways and regulators, which may provide targets for improving cardiac differentiation and maturation. Proteomic analysis was performed on enriched mitochondrial protein extracts isolated from hiPSC-CMs differentiated from dermal fibroblasts (dFCM) and cardiac fibroblasts (cFCM) at time points between 12 and 115 days of differentiation, and from adult and neonatal mouse hearts. Mitochondrial proteins with a twofold change at time points up to 120 days relative to 12 days were subjected to ingenuity pathway analysis (IPA). The highest upregulation was in metabolic pathways for fatty acid oxidation (FAO), the tricarboxylic acid (TCA) cycle, oxidative phosphorylation (OXPHOS), and branched chain amino acid (BCAA) degradation. The top upstream regulators predicted to be activated were peroxisome proliferator-activated receptor γ coactivator 1 α (PGC1-α), the insulin receptor (IR), and the retinoblastoma protein (Rb1) transcriptional repressor. IPA and immunoblotting showed upregulation of the mitochondrial LonP1 protease-a regulator of mitochondrial proteostasis, energetics, and metabolism. LonP1 knockdown increased FAO in neonatal rat ventricular cardiomyocytes (nRVMs). Our results support the notion that LonP1 upregulation negatively regulates FAO in cardiomyocytes to calibrate the flux between glucose and fatty acid oxidation. We discuss potential mechanisms by which IR, Rb1, and LonP1 regulate the metabolic shift from glycolysis to OXPHOS and FAO. These newly identified factors and pathways may help in optimizing the maturation of iPSC-CMs.
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Affiliation(s)
- Sundararajan Venkatesh
- Department of Microbiology, Biochemistry and Molecular Genetics, Rutgers University-New Jersey Medical School, Newark, New Jersey
| | - Erdene Baljinnyam
- Department of Cell Biology and Molecular Medicine, Rutgers University-New Jersey Medical School, Newark, New Jersey
| | - Mingming Tong
- Department of Cell Biology and Molecular Medicine, Rutgers University-New Jersey Medical School, Newark, New Jersey
| | - Toshihide Kashihara
- Department of Cell Biology and Molecular Medicine, Rutgers University-New Jersey Medical School, Newark, New Jersey
| | - Lin Yan
- Center for Advanced Proteomics Research and Department of Microbiology, Biochemistry and Molecular Genetics, Cancer Center, Rutgers University-New Jersey Medical School, Newark, New Jersey
| | - Tong Liu
- Center for Advanced Proteomics Research and Department of Microbiology, Biochemistry and Molecular Genetics, Cancer Center, Rutgers University-New Jersey Medical School, Newark, New Jersey
| | - Hong Li
- Center for Advanced Proteomics Research and Department of Microbiology, Biochemistry and Molecular Genetics, Cancer Center, Rutgers University-New Jersey Medical School, Newark, New Jersey
| | - Lai-Hua Xie
- Department of Cell Biology and Molecular Medicine, Rutgers University-New Jersey Medical School, Newark, New Jersey
| | - Michinari Nakamura
- Department of Cell Biology and Molecular Medicine, Rutgers University-New Jersey Medical School, Newark, New Jersey
| | - Shin-Ichi Oka
- Department of Cell Biology and Molecular Medicine, Rutgers University-New Jersey Medical School, Newark, New Jersey
| | - Carolyn K Suzuki
- Department of Microbiology, Biochemistry and Molecular Genetics, Rutgers University-New Jersey Medical School, Newark, New Jersey
| | - Diego Fraidenraich
- Department of Cell Biology and Molecular Medicine, Rutgers University-New Jersey Medical School, Newark, New Jersey
| | - Junichi Sadoshima
- Department of Cell Biology and Molecular Medicine, Rutgers University-New Jersey Medical School, Newark, New Jersey
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Zhou ZD, Tan EK. Oxidized nicotinamide adenine dinucleotide-dependent mitochondrial deacetylase sirtuin-3 as a potential therapeutic target of Parkinson's disease. Ageing Res Rev 2020; 62:101107. [PMID: 32535274 DOI: 10.1016/j.arr.2020.101107] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/18/2020] [Accepted: 06/05/2020] [Indexed: 12/11/2022]
Abstract
Mitochondrial impairment is associated with progressive dopamine (DA) neuron degeneration in Parkinson's disease (PD). Recent findings highlight that Sirtuin-3 (SIRT3), a mitochondrial protein, is an oxidized nicotinamide adenine dinucleotide (NAD+)-dependent deacetylase and a key modulator in maintaining integrity and functions of mitochondria. SIRT3 plays vital roles in regulation of mitochondrial functions, including mitochondrial ATP generation and energy metabolism, anti-oxidant defense, and cell death and proliferation. SIRT3 can deacetylate the transcriptional factors and crosstalk with different signaling pathways to cooperatively modulate mitochondrial functions and regulate defensive mitochondrial quality control (QC) systems. Down-regulated NAD+ level and decreased SIRT3 activity are related to aging process and has been pathologically linked to PD pathogenesis. Further, SIRT3 can bind and deacetylate PTEN-induced kinase 1 (PINK1) and PD protein 2 E3 ubiquitin protein ligase (Parkin) to facilitate mitophagy. Leucine Rich Repeat Kinase 2 (LRRK2)-G2019S mutation in PD is linked to SIRT3 impairment. Furthermore, SIRT3 is inversely associated with α-synuclein aggregation and DA neuron degeneration in PD. SIRT3 chemical activators and NAD+ precursors can up-regulate SIRT3 activity to protect against DA neuron degeneration in PD models. Taken together, SIRT3 is a promising PD therapeutic target and studies of SIRT3 functional modulators with neuroprotective capability will be of clinical interest.
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Affiliation(s)
- Zhi Dong Zhou
- National Neuroscience Institute, 11 Jalan Tan Tock Seng, 308433, Singapore; Duke-NUS Graduate Medical School, 8 College Road, 169857, Singapore.
| | - Eng King Tan
- National Neuroscience Institute, 11 Jalan Tan Tock Seng, 308433, Singapore; Department of Neurology, Singapore General Hospital, Outram Road, 169608, Singapore; Duke-NUS Graduate Medical School, 8 College Road, 169857, Singapore.
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James J, Valuparampil Varghese M, Vasilyev M, Langlais PR, Tofovic SP, Rafikova O, Rafikov R. Complex III Inhibition-Induced Pulmonary Hypertension Affects the Mitochondrial Proteomic Landscape. Int J Mol Sci 2020; 21:ijms21165683. [PMID: 32784406 PMCID: PMC7461049 DOI: 10.3390/ijms21165683] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/05/2020] [Accepted: 08/06/2020] [Indexed: 02/07/2023] Open
Abstract
The mitochondria play a vital role in controlling cell metabolism and regulating crucial cellular outcomes. We previously demonstrated that chronic inhibition of the mitochondrial complex III in rats by Antimycin A (AA) induced sustained pulmonary vasoconstriction. On the metabolic level, AA-induced mitochondrial dysfunction resulted in a glycolytic shift that was reported as the primary contributor to pulmonary hypertension pathogenesis. However, the regulatory proteins driving this metabolic shift with complex III inhibition are yet to be explored. Therefore, to delineate the mechanisms, we followed changes in the rat lung mitochondrial proteome throughout AA treatment. Rats treated with AA for up to 24 days showed a disturbed mitochondrial proteome with significant changes in 28 proteins (p < 0.05). We observed a time-dependent decrease in the expression of key proteins that regulate fatty acid oxidation, the tricarboxylic acid cycle, the electron transport chain, and amino acid metabolism, indicating a correlation with diminished mitochondrial function. We also found a significant dysregulation in proteins that controls the protein import machinery and the clearance and detoxification of oxidatively damaged peptides via proteolysis and mitophagy. This could potentially lead to the onset of mitochondrial toxicity due to misfolded protein stress. We propose that chronic inhibition of mitochondrial complex III attenuates mitochondrial function by disruption of the global mitochondrial metabolism. This potentially aggravates cellular proliferation by initiating a glycolytic switch and thereby leads to pulmonary hypertension.
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Affiliation(s)
- Joel James
- Department of Medicine, Division of Endocrinology, University of Arizona College of Medicine, Tucson, AZ 85721, USA; (J.J.); (M.V.V.); (M.V.); (P.R.L.); (O.R.)
| | - Mathews Valuparampil Varghese
- Department of Medicine, Division of Endocrinology, University of Arizona College of Medicine, Tucson, AZ 85721, USA; (J.J.); (M.V.V.); (M.V.); (P.R.L.); (O.R.)
| | - Mikhail Vasilyev
- Department of Medicine, Division of Endocrinology, University of Arizona College of Medicine, Tucson, AZ 85721, USA; (J.J.); (M.V.V.); (M.V.); (P.R.L.); (O.R.)
| | - Paul R. Langlais
- Department of Medicine, Division of Endocrinology, University of Arizona College of Medicine, Tucson, AZ 85721, USA; (J.J.); (M.V.V.); (M.V.); (P.R.L.); (O.R.)
| | - Stevan P. Tofovic
- Vascular Medicine Institute, Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA 15213; USA;
| | - Olga Rafikova
- Department of Medicine, Division of Endocrinology, University of Arizona College of Medicine, Tucson, AZ 85721, USA; (J.J.); (M.V.V.); (M.V.); (P.R.L.); (O.R.)
| | - Ruslan Rafikov
- Department of Medicine, Division of Endocrinology, University of Arizona College of Medicine, Tucson, AZ 85721, USA; (J.J.); (M.V.V.); (M.V.); (P.R.L.); (O.R.)
- Correspondence:
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De Gaetano A, Gibellini L, Bianchini E, Borella R, De Biasi S, Nasi M, Boraldi F, Cossarizza A, Pinti M. Impaired Mitochondrial Morphology and Functionality in Lonp1wt/- Mice. J Clin Med 2020; 9:jcm9061783. [PMID: 32521756 PMCID: PMC7355737 DOI: 10.3390/jcm9061783] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 05/31/2020] [Accepted: 06/04/2020] [Indexed: 01/11/2023] Open
Abstract
LONP1 is a nuclear-encoded mitochondrial protease crucial for organelle homeostasis; mutations of LONP1 have been associated with Cerebral, Ocular, Dental, Auricular, and Skeletal anomalies (CODAS) syndrome. To clarify the role of LONP1 in vivo, we generated a mouse model in which Lonp1 was ablated. The homozygous Lonp−/− mouse was not vital, while the heterozygous Lonp1wt/− showed similar growth rate, weight, length, life-span and histologic features as wild type. Conversely, ultrastructural analysis of heterozygous enterocytes evidenced profound morphological alterations of mitochondria, which appeared increased in number, swollen and larger, with a lower complexity. Embryonic fibroblasts (MEFs) from Lonp1wt/− mice showed a reduced expression of Lonp1 and Tfam, whose expression is regulated by LONP1. Mitochondrial DNA was also reduced, and mitochondria were swollen and larger, albeit at a lesser extent than enterocytes, with a perinuclear distribution. From the functional point of view, mitochondria from heterozygous MEF showed a lower oxygen consumption rate in basal conditions, either in the presence of glucose or galactose, and a reduced expression of mitochondrial complexes than wild type. In conclusion, the presence of one functional copy of the Lonp1 gene leads to impairment of mitochondrial ultrastructure and functions in vivo.
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Affiliation(s)
- Anna De Gaetano
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (A.D.G.); (F.B.)
| | - Lara Gibellini
- Department of Medical and Surgical Sciences of Children and Adults, University of Modena and Reggio Emilia, 41125 Modena, Italy; (L.G.); (R.B.); (S.D.B.); (A.C.)
| | - Elena Bianchini
- Department of Surgery, Medicine, Dentistry and Morphological Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (E.B.); (M.N.)
| | - Rebecca Borella
- Department of Medical and Surgical Sciences of Children and Adults, University of Modena and Reggio Emilia, 41125 Modena, Italy; (L.G.); (R.B.); (S.D.B.); (A.C.)
| | - Sara De Biasi
- Department of Medical and Surgical Sciences of Children and Adults, University of Modena and Reggio Emilia, 41125 Modena, Italy; (L.G.); (R.B.); (S.D.B.); (A.C.)
| | - Milena Nasi
- Department of Surgery, Medicine, Dentistry and Morphological Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (E.B.); (M.N.)
| | - Federica Boraldi
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (A.D.G.); (F.B.)
| | - Andrea Cossarizza
- Department of Medical and Surgical Sciences of Children and Adults, University of Modena and Reggio Emilia, 41125 Modena, Italy; (L.G.); (R.B.); (S.D.B.); (A.C.)
| | - Marcello Pinti
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (A.D.G.); (F.B.)
- Correspondence: ; Tel.: +39-059-205-5386; Fax: +39-059-205-5426
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Picchioni D, Antolin-Fontes A, Camacho N, Schmitz C, Pons-Pons A, Rodríguez-Escribà M, Machallekidou A, Güler MN, Siatra P, Carretero-Junquera M, Serrano A, Hovde SL, Knobel PA, Novoa EM, Solà-Vilarrubias M, Kaguni LS, Stracker TH, Ribas de Pouplana L. Mitochondrial Protein Synthesis and mtDNA Levels Coordinated through an Aminoacyl-tRNA Synthetase Subunit. Cell Rep 2020; 27:40-47.e5. [PMID: 30943413 DOI: 10.1016/j.celrep.2019.03.022] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 02/13/2019] [Accepted: 03/06/2019] [Indexed: 11/28/2022] Open
Abstract
The aminoacylation of tRNAs by aminoacyl-tRNA synthetases (ARSs) is a central reaction in biology. Multiple regulatory pathways use the aminoacylation status of cytosolic tRNAs to monitor and regulate metabolism. The existence of equivalent regulatory networks within the mitochondria is unknown. Here, we describe a functional network that couples protein synthesis to DNA replication in animal mitochondria. We show that a duplication of the gene coding for mitochondrial seryl-tRNA synthetase (SerRS2) generated in arthropods a paralog protein (SLIMP) that forms a heterodimeric complex with a SerRS2 monomer. This seryl-tRNA synthetase variant is essential for protein synthesis and mitochondrial respiration. In addition, SLIMP interacts with the substrate binding domain of the mitochondrial protease LON, thus stimulating proteolysis of the DNA-binding protein TFAM and preventing mitochondrial DNA (mtDNA) accumulation. Thus, mitochondrial translation is directly coupled to mtDNA levels by a network based upon a profound structural modification of an animal ARS.
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Affiliation(s)
- Daria Picchioni
- Institute for Research in Biomedicine (IRB Barcelona), the Barcelona Institute of Science and Technology, Parc Científic de Barcelona, C/Baldiri Reixac 10, 08028 Barcelona, Catalonia, Spain
| | - Albert Antolin-Fontes
- Institute for Research in Biomedicine (IRB Barcelona), the Barcelona Institute of Science and Technology, Parc Científic de Barcelona, C/Baldiri Reixac 10, 08028 Barcelona, Catalonia, Spain
| | - Noelia Camacho
- Institute for Research in Biomedicine (IRB Barcelona), the Barcelona Institute of Science and Technology, Parc Científic de Barcelona, C/Baldiri Reixac 10, 08028 Barcelona, Catalonia, Spain
| | - Claus Schmitz
- Structural MitoLab, Department of Structural Biology, Molecular Biology Institute Barcelona (IBMB-CSIC), Barcelona, Spain
| | - Alba Pons-Pons
- Institute for Research in Biomedicine (IRB Barcelona), the Barcelona Institute of Science and Technology, Parc Científic de Barcelona, C/Baldiri Reixac 10, 08028 Barcelona, Catalonia, Spain
| | - Marta Rodríguez-Escribà
- Institute for Research in Biomedicine (IRB Barcelona), the Barcelona Institute of Science and Technology, Parc Científic de Barcelona, C/Baldiri Reixac 10, 08028 Barcelona, Catalonia, Spain
| | - Antigoni Machallekidou
- Institute for Research in Biomedicine (IRB Barcelona), the Barcelona Institute of Science and Technology, Parc Científic de Barcelona, C/Baldiri Reixac 10, 08028 Barcelona, Catalonia, Spain
| | - Merve Nur Güler
- Institute for Research in Biomedicine (IRB Barcelona), the Barcelona Institute of Science and Technology, Parc Científic de Barcelona, C/Baldiri Reixac 10, 08028 Barcelona, Catalonia, Spain
| | - Panagiota Siatra
- Institute for Research in Biomedicine (IRB Barcelona), the Barcelona Institute of Science and Technology, Parc Científic de Barcelona, C/Baldiri Reixac 10, 08028 Barcelona, Catalonia, Spain
| | - Maria Carretero-Junquera
- Institute for Research in Biomedicine (IRB Barcelona), the Barcelona Institute of Science and Technology, Parc Científic de Barcelona, C/Baldiri Reixac 10, 08028 Barcelona, Catalonia, Spain
| | - Alba Serrano
- Institute for Research in Biomedicine (IRB Barcelona), the Barcelona Institute of Science and Technology, Parc Científic de Barcelona, C/Baldiri Reixac 10, 08028 Barcelona, Catalonia, Spain
| | - Stacy L Hovde
- Department of Biochemistry and Molecular Biology and Center for Mitochondrial Science and Medicine, Michigan State University, East Lansing, MI, USA
| | - Philip A Knobel
- Institute for Research in Biomedicine (IRB Barcelona), the Barcelona Institute of Science and Technology, Parc Científic de Barcelona, C/Baldiri Reixac 10, 08028 Barcelona, Catalonia, Spain; Laboratory for Molecular Radiobiology, Clinic of Radiation Oncology, University of Zurich, 8057 Zurich, Switzerland
| | - Eva M Novoa
- Centre for Genomic Regulation (CRG), the Barcelona Institute of Science and Technology (BIST), Doctor Aiguader 88, 08003 Barcelona, Spain; Garvan Institute of Medical Research, 384 Victoria Street, 2010 Darlinghurst, NSW, Australia
| | - Maria Solà-Vilarrubias
- Structural MitoLab, Department of Structural Biology, Molecular Biology Institute Barcelona (IBMB-CSIC), Barcelona, Spain
| | - Laurie S Kaguni
- Department of Biochemistry and Molecular Biology and Center for Mitochondrial Science and Medicine, Michigan State University, East Lansing, MI, USA; Institute of Biosciences and Medical Technology, University of Tampere, 33014 Tampere, Finland
| | - Travis H Stracker
- Institute for Research in Biomedicine (IRB Barcelona), the Barcelona Institute of Science and Technology, Parc Científic de Barcelona, C/Baldiri Reixac 10, 08028 Barcelona, Catalonia, Spain
| | - Lluís Ribas de Pouplana
- Institute for Research in Biomedicine (IRB Barcelona), the Barcelona Institute of Science and Technology, Parc Científic de Barcelona, C/Baldiri Reixac 10, 08028 Barcelona, Catalonia, Spain; Catalan Institution for Research and Advanced Studies (ICREA), P/Lluis Companys 23, 08010 Barcelona, Catalonia, Spain.
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Shin M, Puchades C, Asmita A, Puri N, Adjei E, Wiseman RL, Karzai AW, Lander GC. Structural basis for distinct operational modes and protease activation in AAA+ protease Lon. SCIENCE ADVANCES 2020; 6:eaba8404. [PMID: 32490208 PMCID: PMC7239648 DOI: 10.1126/sciadv.aba8404] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 03/09/2020] [Indexed: 05/21/2023]
Abstract
Substrate-bound structures of AAA+ protein translocases reveal a conserved asymmetric spiral staircase architecture wherein a sequential ATP hydrolysis cycle drives hand-over-hand substrate translocation. However, this configuration is unlikely to represent the full conformational landscape of these enzymes, as biochemical studies suggest distinct conformational states depending on the presence or absence of substrate. Here, we used cryo-electron microscopy to determine structures of the Yersinia pestis Lon AAA+ protease in the absence and presence of substrate, uncovering the mechanistic basis for two distinct operational modes. In the absence of substrate, Lon adopts a left-handed, "open" spiral organization with autoinhibited proteolytic active sites. Upon the addition of substrate, Lon undergoes a reorganization to assemble an enzymatically active, right-handed "closed" conformer with active protease sites. These findings define the mechanistic principles underlying the operational plasticity required for processing diverse protein substrates.
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Affiliation(s)
- Mia Shin
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Cristina Puchades
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Ananya Asmita
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY 11794-5215, USA
| | - Neha Puri
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY 11794-5215, USA
| | - Eric Adjei
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY 11794-5215, USA
| | - R. Luke Wiseman
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - A. Wali Karzai
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY 11794-5215, USA
| | - Gabriel C. Lander
- Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA
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Stotland AB, Spivia W, Orosco A, Andres AM, Gottlieb RA, Van Eyk JE, Parker SJ. MitoPlex: A targeted multiple reaction monitoring assay for quantification of a curated set of mitochondrial proteins. J Mol Cell Cardiol 2020; 142:1-13. [PMID: 32234390 PMCID: PMC7347090 DOI: 10.1016/j.yjmcc.2020.03.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/23/2020] [Accepted: 03/24/2020] [Indexed: 12/21/2022]
Abstract
Mitochondria are the major source of cellular energy (ATP), as well as critical mediators of widespread functions such as cellular redox balance, apoptosis, and metabolic flux. The organelles play an especially important role in the maintenance of cardiac homeostasis; their inability to generate ATP following impairment due to ischemic damage has been directly linked to organ failure. Methods to quantify mitochondrial content are limited to low throughput immunoassays, measurement of mitochondrial DNA, or relative quantification by untargeted mass spectrometry. Here, we present a high throughput, reproducible and quantitative mass spectrometry multiple reaction monitoring based assay of 37 proteins critical to central carbon chain metabolism and overall mitochondrial function termed 'MitoPlex'. We coupled this protein multiplex with a parallel analysis of the central carbon chain metabolites (219 metabolite assay) extracted in tandem from the same sample, be it cells or tissue. In tests of its biological applicability in cells and tissues, "MitoPlex plus metabolites" indicated profound effects of HMG-CoA Reductase inhibition (e.g., statin treatment) on mitochondria of i) differentiating C2C12 skeletal myoblasts, as well as a clear opposite trend of statins to promote mitochondrial protein expression and metabolism in heart and liver, while suppressing mitochondrial protein and ii) aspects of metabolism in the skeletal muscle obtained from C57Bl6 mice. Our results not only reveal new insights into the metabolic effect of statins in skeletal muscle, but present a new high throughput, reliable MS-based tool to study mitochondrial dynamics in both cell culture and in vivo models.
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Affiliation(s)
- Aleksandr B Stotland
- Molecular Cardiobiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Weston Spivia
- Advanced Clinical Biosystems Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Amanda Orosco
- Advanced Clinical Biosystems Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Allen M Andres
- Molecular Cardiobiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Roberta A Gottlieb
- Molecular Cardiobiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Jennifer E Van Eyk
- Advanced Clinical Biosystems Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America
| | - Sarah J Parker
- Advanced Clinical Biosystems Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States of America.
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Muselius B, Sukumaran A, Yeung J, Geddes-McAlister J. Iron Limitation in Klebsiella pneumoniae Defines New Roles for Lon Protease in Homeostasis and Degradation by Quantitative Proteomics. Front Microbiol 2020; 11:546. [PMID: 32390954 PMCID: PMC7194016 DOI: 10.3389/fmicb.2020.00546] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 03/12/2020] [Indexed: 01/24/2023] Open
Abstract
Nutrient adaptation is key in limiting environments for the promotion of microbial growth and survival. In microbial systems, iron is an essential component for many cellular processes, and bioavailability varies greatly among different conditions. In the bacterium, Klebsiella pneumoniae, the impact of iron limitation is known to alter transcriptional expression of iron-acquisition pathways and influence secretion of iron-binding siderophores, however, a comprehensive view of iron limitation at the protein level remains to be defined. Here, we apply a mass-spectrometry-based quantitative proteomics strategy to profile the global impact of iron limitation on the cellular proteome and extracellular environment (secretome) of K. pneumoniae. Our data define the impact of iron on proteins involved in transcriptional regulation and emphasize the modulation of a vast array of proteins associated with iron acquisition, transport, and binding. We also identify proteins in the extracellular environment associated with conventional and non-conventional modes of secretion, as well as vesicle release. In particular, we demonstrate a new role for Lon protease in promoting iron homeostasis outside of the cell. Characterization of a Lon protease mutant in K. pneumoniae validates roles in bacterial growth, cell division, and virulence, and uncovers novel degradation candidates of Lon protease associated with improved iron utilization strategies in the absence of the enzyme. Overall, we provide evidence of unique connections between Lon and iron in a bacterial system and suggest a new role for Lon protease in the extracellular environment during nutrient limitation.
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Kuo CL, Chou HY, Chiu YC, Cheng AN, Fan CC, Chang YN, Chen CH, Jiang SS, Chen NJ, Lee AYL. Mitochondrial oxidative stress by Lon-PYCR1 maintains an immunosuppressive tumor microenvironment that promotes cancer progression and metastasis. Cancer Lett 2020; 474:138-150. [PMID: 31987921 DOI: 10.1016/j.canlet.2020.01.019] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 12/20/2019] [Accepted: 01/21/2020] [Indexed: 12/30/2022]
Abstract
Mitochondrial Lon is a chaperone protein whose upregulation increases the production of mitochondrial reactive oxygen species (ROS). However, there is a lack of information in detail on how mitochondrial Lon regulates cancer metastasis through ROS production in the tumor microenvironment (TME). Our results show that elevated Lon promotes epithelial-mesenchymal transition (EMT) via ROS-dependent p38 and NF-κB-signaling. We further identified pyrroline-5-carboxylate reductase 1 (PYCR1) as a client of chaperone Lon, which induces mitochondrial ROS and EMT by Lon. Mitochondrial Lon induces ROS-dependent production of inflammatory cytokines, such as TGF-β, IL-6, IL-13, and VEGF-A, which consequently activates EMT, angiogenesis, and M2 macrophage polarization. In addition, Lon expression is induced upon the activation and M2 polarization of macrophages, which further promotes M2 macrophages to enhance the immunosuppressive microenvironment and metastatic behaviors in the TME. This raises the possibility that manipulation of the mitochondrial redox balance in the TME may serve as a therapeutic strategy to improve T cell function in cancer immunotherapy.
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Affiliation(s)
- Cheng-Liang Kuo
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Miaoli, 35053, Taiwan
| | - Han-Yu Chou
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Miaoli, 35053, Taiwan
| | - Yi-Chieh Chiu
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Miaoli, 35053, Taiwan
| | - An Ning Cheng
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Miaoli, 35053, Taiwan
| | - Chi-Chen Fan
- Department of Medical Laboratory Science and Biotechnology, Yuanpei University of Medical Technology, Hsinchu, 30015, Taiwan; Superintendent Office, Mackay Memorial Hospital, Taipei, 10449, Taiwan
| | - Yu-Ning Chang
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Miaoli, 35053, Taiwan
| | - Chung-Hsing Chen
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli 35053, Taiwan; Taiwan Bioinformatics Core, National Health Research Institutes, Zhunan, Miaoli 35053, Taiwan
| | - Shih Sheng Jiang
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Miaoli, 35053, Taiwan
| | - Nien-Jung Chen
- The Institute of Microbiology and Immunology, School of Life Sciences, National Yang-Ming University, Taipei, 11221, Taiwan
| | - Alan Yueh-Luen Lee
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Miaoli, 35053, Taiwan; Department of Biotechnology, College of Life Science, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.
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Gibellini L, De Gaetano A, Mandrioli M, Van Tongeren E, Bortolotti CA, Cossarizza A, Pinti M. The biology of Lonp1: More than a mitochondrial protease. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2020; 354:1-61. [PMID: 32475470 DOI: 10.1016/bs.ircmb.2020.02.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Initially discovered as a protease responsible for degradation of misfolded or damaged proteins, the mitochondrial Lon protease (Lonp1) turned out to be a multifaceted enzyme, that displays at least three different functions (proteolysis, chaperone activity, binding of mtDNA) and that finely regulates several cellular processes, within and without mitochondria. Indeed, LONP1 in humans is ubiquitously expressed, and is involved in regulation of response to oxidative stress and, heat shock, in the maintenance of mtDNA, in the regulation of mitophagy. Furthermore, its proteolytic activity can regulate several biochemical pathways occurring totally or partially within mitochondria, such as TCA cycle, oxidative phosphorylation, steroid and heme biosynthesis and glutamine production. Because of these multiple activities, Lon protease is highly conserved throughout evolution, and mutations occurring in its gene determines severe diseases in humans, including a rare syndrome characterized by Cerebral, Ocular, Dental, Auricular and Skeletal anomalies (CODAS). Finally, alterations of LONP1 regulation in humans can favor tumor progression and aggressiveness, further highlighting the crucial role of this enzyme in mitochondrial and cellular homeostasis.
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Affiliation(s)
- Lara Gibellini
- Department of Medical and Surgical Sciences of Children and Adults, University of Modena and Reggio Emilia, Modena, Italy
| | - Anna De Gaetano
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Mauro Mandrioli
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Elia Van Tongeren
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | | | - Andrea Cossarizza
- Department of Medical and Surgical Sciences of Children and Adults, University of Modena and Reggio Emilia, Modena, Italy
| | - Marcello Pinti
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy.
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Hamon MP, Gergondey R, L'honoré A, Friguet B. Mitochondrial Lon protease - depleted HeLa cells exhibit proteome modifications related to protein quality control, stress response and energy metabolism. Free Radic Biol Med 2020; 148:83-95. [PMID: 31904544 DOI: 10.1016/j.freeradbiomed.2019.12.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 12/23/2019] [Accepted: 12/24/2019] [Indexed: 12/20/2022]
Abstract
The ATP-dependent Lon protease is located in the mitochondrial matrix and oxidized proteins are among its primary targets for their degradation. Impairment of mitochondrial morphology and function together with apoptosis were observed in lung fibroblasts depleted for Lon expression while accumulation of carbonylated mitochondrial proteins has been reported for yeast and HeLa Lon deficient cells. In addition, age-related mitochondrial dysfunction has been associated with an impairment of Lon expression. Using a HeLa cell line stably transfected with an inducible shRNA directed against Lon, we have previously observed that Lon depletion results in a mild phenotype characterized by an increase of both production of reactive oxygen species and level of oxidized proteins (Bayot et al., 2014, Biochimie, 100: 38-47). In this study using the same cell line, we now show that Lon knockdown leads to modifications of the expression of a number of specific proteins involved in protein quality control, stress response and energy metabolism, as evidenced using a 2D gel-based proteomic approach, and to alteration of the mitochondrial network morphology. We also show that these effects are associated with decreased proliferation and can be modulated by culture conditions in galactose versus glucose containing medium.
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Affiliation(s)
- Marie-Paule Hamon
- Sorbonne Université, CNRS, INSERM, Institut de Biologie Paris-Seine, Biological Adaptation and Aging, B2A-IBPS, F-75005, Paris, France
| | - Rachel Gergondey
- Sorbonne Université, CNRS, INSERM, Institut de Biologie Paris-Seine, Biological Adaptation and Aging, B2A-IBPS, F-75005, Paris, France
| | - Aurore L'honoré
- Sorbonne Université, CNRS, INSERM, Institut de Biologie Paris-Seine, Biological Adaptation and Aging, B2A-IBPS, F-75005, Paris, France
| | - Bertrand Friguet
- Sorbonne Université, CNRS, INSERM, Institut de Biologie Paris-Seine, Biological Adaptation and Aging, B2A-IBPS, F-75005, Paris, France.
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Deshwal S, Fiedler KU, Langer T. Mitochondrial Proteases: Multifaceted Regulators of Mitochondrial Plasticity. Annu Rev Biochem 2020; 89:501-528. [PMID: 32075415 DOI: 10.1146/annurev-biochem-062917-012739] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Mitochondria are essential metabolic hubs that dynamically adapt to physiological demands. More than 40 proteases residing in different compartments of mitochondria, termed mitoproteases, preserve mitochondrial proteostasis and are emerging as central regulators of mitochondrial plasticity. These multifaceted enzymes limit the accumulation of short-lived, regulatory proteins within mitochondria, modulate the activity of mitochondrial proteins by protein processing, and mediate the degradation of damaged proteins. Various signaling cascades coordinate the activity of mitoproteases to preserve mitochondrial homeostasis and ensure cell survival. Loss of mitoproteases severely impairs the functional integrity of mitochondria, is associated with aging, and causes pleiotropic diseases. Understanding the dual function of mitoproteases as regulatory and quality control enzymes will help unravel the role of mitochondrial plasticity in aging and disease.
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Affiliation(s)
- Soni Deshwal
- Max Planck Institute for Biology of Ageing, 50931 Cologne, Germany;
| | - Kai Uwe Fiedler
- Max Planck Institute for Biology of Ageing, 50931 Cologne, Germany;
| | - Thomas Langer
- Max Planck Institute for Biology of Ageing, 50931 Cologne, Germany; .,Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, 50931 Cologne, Germany.,Center for Molecular Medicine Cologne (CMMC), University of Cologne, 50931 Cologne, Germany
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Shin JS, Kim SY, So WM, Noh M, Yoo KS, Shin JS. Lon domain-containing protein 1 represses thioredoxin y2 and regulates ROS levels in Arabidopsis chloroplasts. FEBS Lett 2019; 594:986-994. [PMID: 31701529 DOI: 10.1002/1873-3468.13664] [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: 09/16/2019] [Revised: 10/11/2019] [Accepted: 10/15/2019] [Indexed: 11/07/2022]
Abstract
Plant thioredoxins (Trxs) act as antioxidants and function as redox regulators in the chloroplast. Although the regulation of ROS in chloroplasts is well elucidated, the precise regulation mechanism of Trx remains unknown. Here, we characterize a novel chloroplast protein, Lon domain-containing protein 1 (LCP1), which contains only a Lon domain, the precise function of which is not known. We find that LCP1 interacts with Trx-y2 and represses its activity, and that knockdown (KD) of LCP1 causes anther indehiscence due to deficient lignin deposition. In addition, LCP1 KD plants show less ROS accumulation and lower expression of ROS-responsive marker genes than the wild-type plant. Taken together, we suggest that LCP1 directly regulates Trx-y2 and controls H2 O2 levels and, thereby, regulates lignin polymerization in the anther endothecium.
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Affiliation(s)
- Jin Seok Shin
- Division of Life Sciences, Korea University, Seoul, Korea
| | - Soo Youn Kim
- Division of Life Sciences, Korea University, Seoul, Korea.,Bionics Inc., Seongdong-gu, Seoul, Korea
| | - Won Mi So
- Division of Life Sciences, Korea University, Seoul, Korea
| | - Minsoo Noh
- Division of Life Sciences, Korea University, Seoul, Korea
| | - Kyoung Shin Yoo
- Division of Life Sciences, Korea University, Seoul, Korea.,Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX, USA
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