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Yang Y, Chen Q, Fan S, Lu Y, Huang Q, Liu X, Peng X. Glutamine sustains energy metabolism and alleviates liver injury in burn sepsis by promoting the assembly of mitochondrial HSP60-HSP10 complex via SIRT4 dependent protein deacetylation. Redox Rep 2024; 29:2312320. [PMID: 38329114 PMCID: PMC10854458 DOI: 10.1080/13510002.2024.2312320] [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] [Indexed: 02/09/2024] Open
Abstract
Burns and burn sepsis, characterized by persistent and profound hypercatabolism, cause energy metabolism dysfunction that worsens organ injury and systemic disorders. Glutamine (Gln) is a key nutrient that remarkably replenishes energy metabolism in burn and sepsis patients, but its exact roles beyond substrate supply is unclear. In this study, we demonstrated that Gln alleviated liver injury by sustaining energy supply and restoring redox balance. Meanwhile, Gln also rescued the dysfunctional mitochondrial electron transport chain (ETC) complexes, improved ATP production, reduced oxidative stress, and protected hepatocytes from burn sepsis injury. Mechanistically, we revealed that Gln could activate SIRT4 by upregulating its protein synthesis and increasing the level of Nicotinamide adenine dinucleotide (NAD+), a co-enzyme that sustains the activity of SIRT4. This, in turn, reduced the acetylation of shock protein (HSP) 60 to facilitate the assembly of the HSP60-HSP10 complex, which maintains the activity of ETC complex II and III and thus sustain ATP generation and reduce reactive oxygen species release. Overall, our study uncovers a previously unknown pharmacological mechanism involving the regulation of HSP60-HSP10 assembly by which Gln recovers mitochondrial complex activity, sustains cellular energy metabolism and exerts a hepato-protective role in burn sepsis.
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Affiliation(s)
- Yongjun Yang
- Clinical Medical Research Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, People’s Republic of China
| | - Qian Chen
- Clinical Medical Research Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, People’s Republic of China
| | - Shijun Fan
- Clinical Medical Research Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, People’s Republic of China
| | - Yongling Lu
- Clinical Medical Research Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, People’s Republic of China
| | - Qianyin Huang
- Clinical Medical Research Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, People’s Republic of China
| | - Xin Liu
- Clinical Medical Research Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, People’s Republic of China
| | - Xi Peng
- Clinical Medical Research Center, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, People’s Republic of China
- State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, Third Military Medical University (Army Medical University), ChongqingPeople’s Republic of China
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Scheffer H, Coate JE, Ho EKH, Schaack S. Thermal stress and mutation accumulation increase heat shock protein expression in Daphnia. Evol Ecol 2022; 36:829-844. [PMID: 36193163 PMCID: PMC9522699 DOI: 10.1007/s10682-022-10209-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 08/25/2022] [Indexed: 11/28/2022]
Abstract
Understanding the short- and long-term consequences of climate change is a major challenge in biology. For aquatic organisms, temperature changes and drought can lead to thermal stress and habitat loss, both of which can ultimately lead to higher mutation rates. Here, we examine the effect of high temperature and mutation accumulation on gene expression at two loci from the heat shock protein (HSP) gene family, HSP60 and HSP90. HSPs have been posited to serve as 'mutational capacitors' given their role as molecular chaperones involved in protein folding and degradation, thus buffering against a wide range of cellular stress and destabilization. We assayed changes in HSP expression across 5 genotypes of Daphnia magna, a sentinel species in ecology and environmental biology, with and without acute exposure to thermal stress and accumulated mutations. Across genotypes, HSP expression increased ~ 6× in response to heat and ~ 4× with mutation accumulation, individually. Both factors simultaneously (lineages with high mutation loads exposed to high heat) increased gene expression ~ 23×-much more than that predicted by an additive model. Our results corroborate suggestions that HSPs can buffer against not only the effects of heat, but also mutations-a combination of factors both likely to increase in a warming world. Supplementary Information The online version contains supplementary material available at 10.1007/s10682-022-10209-1.
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Affiliation(s)
- Henry Scheffer
- Department of Biology, Reed College, 3203 SE Woodstock Blvd, Portland, OR 97202 USA
| | - Jeremy E. Coate
- Department of Biology, Reed College, 3203 SE Woodstock Blvd, Portland, OR 97202 USA
| | - Eddie K. H. Ho
- Department of Biology, Reed College, 3203 SE Woodstock Blvd, Portland, OR 97202 USA
| | - Sarah Schaack
- Department of Biology, Reed College, 3203 SE Woodstock Blvd, Portland, OR 97202 USA
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3
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Huang YH, Wang FS, Wang PW, Lin HY, Luo SD, Yang YL. Heat Shock Protein 60 Restricts Release of Mitochondrial dsRNA to Suppress Hepatic Inflammation and Ameliorate Non-Alcoholic Fatty Liver Disease in Mice. Int J Mol Sci 2022; 23:ijms23010577. [PMID: 35009003 PMCID: PMC8745303 DOI: 10.3390/ijms23010577] [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: 12/03/2021] [Revised: 12/30/2021] [Accepted: 01/04/2022] [Indexed: 02/08/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD), the most common cause of chronic liver disease, consists of fat deposited (steatosis) in the liver due to causes besides excessive alcohol use. The folding activity of heat shock protein 60 (HSP60) has been shown to protect mitochondria from proteotoxicity under various types of stress. In this study, we investigated whether HSP60 could ameliorate experimental high-fat diet (HFD)-induced obesity and hepatitis and explored the potential mechanism in mice. The results uncovered that HSP60 gain not only alleviated HFD-induced body weight gain, fat accumulation, and hepatocellular steatosis, but also glucose tolerance and insulin resistance according to intraperitoneal glucose tolerance testing and insulin tolerance testing in HSP60 transgenic (HSP60Tg) compared to wild-type (WT) mice by HFD. Furthermore, overexpression of HSP60 in the HFD group resulted in inhibited release of mitochondrial dsRNA (mt-dsRNA) compared to WT mice. In addition, overexpression of HSP60 also inhibited the activation of toll-like receptor 3 (TLR3), melanoma differentiation-associated gene 5 (MDA5), and phosphorylated-interferon regulatory factor 3 (p-IRF3), as well as inflammatory biomarkers such as mRNA of il-1β and il-6 expression in the liver in response to HFD. The in vitro study also confirmed that the addition of HSP-60 mimics in HepG2 cells led to upregulated expression level of HSP60 and restricted release of mt-dsRNA, as well as downregulated expression levels of TLR3, MDA5, and pIRF3. This study provides novel insight into a hepatoprotective effect, whereby HSP60 inhibits the release of dsRNA to repress the TLR3/MDA5/pIRF3 pathway in the context of NAFLD or hepatic inflammation. Therefore, HSP60 may serve as a possible therapeutic target for improving NAFLD.
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Affiliation(s)
- Ying-Hsien Huang
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital Chang, Kaohsiung 833, Taiwan;
- College of Medicine, Gung University, Taoyuan 333, Taiwan
| | - Feng-Sheng Wang
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan;
- Core Laboratory for Phenomics & Diagnostics, Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan;
| | - Pei-Wen Wang
- Core Laboratory for Phenomics & Diagnostics, Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan;
- Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan
| | - Hung-Yu Lin
- Research Assistant Center, Show Chwan Memorial Hospital, Changhua 500, Taiwan;
| | - Sheng-Dean Luo
- Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan;
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Ya-Ling Yang
- College of Medicine, Gung University, Taoyuan 333, Taiwan
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung 833, Taiwan
- Correspondence:
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Bugliani M, Tavarini S, Grano F, Tondi S, Lacerenza S, Giusti L, Ronci M, Maidecchi A, Marchetti P, Tesi M, Angelini LG. Protective effects of Stevia rebaudiana extracts on beta cells in lipotoxic conditions. Acta Diabetol 2022; 59:113-126. [PMID: 34499239 PMCID: PMC8758658 DOI: 10.1007/s00592-021-01793-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 08/23/2021] [Indexed: 12/16/2022]
Abstract
AIMS Stevia rebaudiana Bertoni leaf extracts have gained increasing attention for their potential protection against type 2 diabetes. In this study, we have evaluated the possible beneficial effects of Stevia rebaudiana leaf extracts on beta-cells exposed to lipotoxicity and explored some of the possible mechanisms involved. METHODS Extracts, deriving from six different chemotypes (ST1 to ST6), were characterized in terms of steviol glycosides, total phenols, flavonoids, and antioxidant activity. INS-1E beta cells and human pancreatic islets were incubated 24 h with 0.5 mM palmitate with or without varying concentrations of extracts. Beta-cell/islet cell features were analyzed by MTT assay, activated caspase 3/7 measurement, and/or nucleosome quantification. In addition, the proteome of INS-1E cells was assessed by bi-dimensional electrophoresis (2-DE). RESULTS The extracts differed in terms of antioxidant activity and stevioside content. As expected, 24 h exposure to palmitate resulted in a significant decrease of INS-1E cell metabolic activity, which was counteracted by all the Stevia extracts at 200 μg/ml. However, varying stevioside only concentrations were not able to protect palmitate-exposed cells. ST3 extract was also tested with human islets, showing an anti-apoptotic effect. Proteome analysis showed several changes in INS-1E beta-cells exposed to ST3, mainly at the endoplasmic reticulum and mitochondrial levels. CONCLUSIONS Stevia rebaudiana leaf extracts have beneficial effects on beta cells exposed to lipotoxicity; this effect does not seem to be mediated by stevioside alone (suggesting a major role of the leaf phytocomplex as a whole) and might be due to actions on the endoplasmic reticulum and the mitochondrion.
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Affiliation(s)
- Marco Bugliani
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Silvia Tavarini
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
| | - Francesca Grano
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Silvia Tondi
- Aboca SpA Società Agricola, Sansepolcro, Tuscany, Italy
| | | | - Laura Giusti
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
- School of Pharmacy, University of Camerino, Camerino, Italy
| | - Maurizio Ronci
- Department of Pharmacy and Centre for Advanced Studies and Technologies (CAST), University "G. D'Annunzio" of Chieti-Pescara, Chieti, Italy
| | | | - Piero Marchetti
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy.
- Department of Pharmacy and Centre for Advanced Studies and Technologies (CAST), University "G. D'Annunzio" of Chieti-Pescara, Chieti, Italy.
| | - Marta Tesi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Luciana G Angelini
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
- Centro Interdipartimentale NUTRAFOOD, University of Pisa, Pisa, Italy
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Ciregia F, Cetani F, Pardi E, Soggiu A, Piras C, Zallocco L, Borsari S, Ronci M, Caruso V, Marcocci C, Mazzoni MR, Lucacchini A, Giusti L. Parathyroid Carcinoma and Adenoma Co-existing in One Patient: Case Report and Comparative Proteomic Analysis. Cancer Genomics Proteomics 2021; 18:781-796. [PMID: 34697069 DOI: 10.21873/cgp.20297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 09/02/2021] [Accepted: 09/17/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND/AIM The lack of specific parathyroid carcinoma (PC) biomarkers in clinical practice points out the importance of analyzing the proteomic signature of this cancer. We performed a comparative proteomic analysis of PC and parathyroid adenoma (PA) co-existing in the same patient. PATIENTS AND METHODS PC and PA were taken from a 63-year-old patient. Using two-dimensional differential gel electrophoresis (2D-DIGE) coupled to mass spectrometry we examined the differences between PC and PA proteins. For validation, additional PC and PA samples were obtained from 10 patients. Western blot analysis was used to validate the difference of expression observed with 2D-DIGE analysis. Bioinfomatic analysis was performed using QIAGEN's Ingenuity Pathways Analysis (IPA) to determine the predominant canonical pathways and interaction networks involved. RESULTS Thirty-three differentially expressed proteins were identified in PC compared to PA. Among these, ubiquitin C-terminal hydrolase-L1 (UCH-L1) was highly overexpressed in PC. The result was confirmed by Western Blot analysis in additional PC samples. CONCLUSION Our comparative proteomic analysis of co-existing neoplasms allowed detecting specific and peculiar differences between PC and PA overcoming population biological variability.
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Affiliation(s)
- Federica Ciregia
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy.,Department of Rheumatology, GIGA Research, Centre Hospitalier Universitaire (CHU) de Liège, University of Liège, Liège, Belgium
| | - Filomena Cetani
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Elena Pardi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Alessio Soggiu
- Surgical and Dental Sciences-One Health Unit, Department of Biomedical, University of Milano, Milan, Italy
| | - Cristian Piras
- Department of Health Sciences, Campus Universitario "S. Venuta", University "Magna Græcia" of Catanzaro, Catanzaro, Italy
| | | | - Simona Borsari
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Maurizio Ronci
- Department of Pharmacy, University G. d'Annunzio of Chieti-Pescara, Chieti, Italy
| | - Vanni Caruso
- School of Pharmacy & Pharmacology - College of Health and Medicine, University of Tasmania, Hobart, TAS, Australia
| | - Claudio Marcocci
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | | | - Antonio Lucacchini
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Laura Giusti
- School of Pharmacy, University of Camerino, Camerino, Italy
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Iyer K, Chand K, Mitra A, Trivedi J, Mitra D. Diversity in heat shock protein families: functional implications in virus infection with a comprehensive insight of their role in the HIV-1 life cycle. Cell Stress Chaperones 2021; 26:743-768. [PMID: 34318439 PMCID: PMC8315497 DOI: 10.1007/s12192-021-01223-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 07/05/2021] [Accepted: 07/07/2021] [Indexed: 02/07/2023] Open
Abstract
Heat shock proteins (HSPs) are a group of cellular proteins that are induced during stress conditions such as heat stress, cold shock, UV irradiation and even pathogenic insult. They are classified into families based on molecular size like HSP27, 40, 70 and 90 etc, and many of them act as cellular chaperones that regulate protein folding and determine the fate of mis-folded or unfolded proteins. Studies have also shown multiple other functions of these proteins such as in cell signalling, transcription and immune response. Deregulation of these proteins leads to devastating consequences, such as cancer, Alzheimer's disease and other life threatening diseases suggesting their potential importance in life processes. HSPs exist in multiple isoforms, and their biochemical and functional characterization still remains a subject of active investigation. In case of viral infections, several HSP isoforms have been documented to play important roles with few showing pro-viral activity whereas others seem to have an anti-viral role. Earlier studies have demonstrated that HSP40 plays a pro-viral role whereas HSP70 inhibits HIV-1 replication; however, clear isoform-specific functional roles remain to be established. A detailed functional characterization of all the HSP isoforms will uncover their role in cellular homeostasis and also may highlight some of them as potential targets for therapeutic strategies against various viral infections. In this review, we have tried to comprehend the details about cellular HSPs and their isoforms, their role in cellular physiology and their isoform-specific functions in case of virus infection with a specific focus on HIV-1 biology.
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Affiliation(s)
- Kruthika Iyer
- Laboratory for HIV Research, National Centre for Cell Science, SP Pune University, Ganeshkhind, Pune, 411007, India
| | - Kailash Chand
- Laboratory for HIV Research, National Centre for Cell Science, SP Pune University, Ganeshkhind, Pune, 411007, India
| | - Alapani Mitra
- Laboratory for HIV Research, National Centre for Cell Science, SP Pune University, Ganeshkhind, Pune, 411007, India
| | - Jay Trivedi
- Laboratory for HIV Research, National Centre for Cell Science, SP Pune University, Ganeshkhind, Pune, 411007, India
| | - Debashis Mitra
- Laboratory for HIV Research, National Centre for Cell Science, SP Pune University, Ganeshkhind, Pune, 411007, India.
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Nojima Y. Characterization of Heat Shock Protein 60 as an Interacting Partner of Superoxide Dismutase 2 in the Silkworm, Bombyx mori, and Its Response to the Molting Hormone, 20-Hydroxyecdysone. Antioxidants (Basel) 2021; 10:antiox10091385. [PMID: 34573018 PMCID: PMC8468717 DOI: 10.3390/antiox10091385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 08/20/2021] [Accepted: 08/23/2021] [Indexed: 11/26/2022] Open
Abstract
Oxidative stress promotes pupation in some holometabolous insects. The levels of superoxide, a reactive oxygen species (ROS), are increased and superoxide dismutase 1 (BmSod1) and superoxide dismutase 2 (BmSod2) are decreased during metamorphic events in silkworm (Bombyx mori). These observations strongly suggest that pupation is initiated by oxidative stress via the down-regulation of BmSod1 and BmSod2. However, the molecular mechanisms underlying ROS production during metamorphic events in silkworm remain unknown. To investigate these molecular mechanisms, the peripheral proteins of BmSod1 and BmSod2 were identified and characterized using dry and wet approaches in this study. Based on the results, silkworm heat shock protein 60 (BmHsp60) was identified as an interacting partner of BmSod2, which belongs to the Fe/MnSOD family. Furthermore, the present study results showed that BmHsp60 mRNA expression levels were increased in response to oxidative stress caused by ultraviolet radiation and that BmHsp60 protein levels (but not mRNA levels) were decreased during metamorphic events, which are regulated by the molting hormone 20-hydroxyecdysone. These findings improve our understanding of the mechanisms by which holometabolous insects control ROS during metamorphosis.
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Affiliation(s)
- Yosui Nojima
- Center for Mathematical Modeling and Data Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
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Wu MX, Zou Y, Yu YH, Chen BX, Zheng QW, Ye ZW, Wei T, Ye SQ, Guo LQ, Lin JF. Comparative transcriptome and proteome provide new insights into the regulatory mechanisms of the postharvest deterioration of Pleurotus tuoliensis fruitbodies during storage. Food Res Int 2021; 147:110540. [PMID: 34399517 DOI: 10.1016/j.foodres.2021.110540] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 06/05/2021] [Accepted: 06/14/2021] [Indexed: 10/21/2022]
Abstract
The Pleurotus tuoliensis (Pt), a precious edible mushroom with high economic value, is widely popular for its rich nutrition and meaty texture. However, rapid postharvest deterioration depreciates the commercial value of Pt and severely restricts its marketing. By RNA-Seq transcriptomic and TMT-MS MS proteomic, we study the regulatory mechanisms of the postharvest storage of Pt fruitbodies at 25 ℃ for 0, 38, and 76 h (these three-time points recorded as groups A, B, and C, respectively). 2,008 DEGs (Differentially expressed genes) were identified, and all DEGs shared 265 factors with all DEPs (Differentially expressed proteins). Jointly, the DEGs and DEPs of two-omics showed that the category of the metabolic process contained the most DEGs and DEPs in the biological process by GO (Gene Ontology) classification. The top 17 KEGG (Kyoto Encyclopedia of Genes and Genomes) pathways with the highest sum of DEG and DEP numbers in groups B/A (38 h vs. 0 h) and C/A (76 h vs. 0 h) and pathways closely related to energy metabolism were selected for analysis and discussion. Actively expression of CAZymes (Carbohydrate active enzymes), represented by laccase, chitinase, and β-glucanase, directly leads to the softening of fruitbodies. The transcription factor Rlm1 of 1,3-β-glucan synthase attracted attention with a significant down-regulation of gene levels in the C/A group. Laccase also contributes, together with phenylalanine ammonia-lyase (PAL), to the discoloration reaction in the first 76 h of the fruitbodies. Significant expression of several crucial enzymes for EMP (Glycolysis), Fatty acid degradation, and Valine, leucine and isoleucine degradation at the gene or protein level supply substantial amounts of acetyl-CoA to the TCA cycle. Citrate synthase (CS), isocitrate dehydrogenase (ICDH), and three mitochondrial respiratory complexes intensify respiration and produce high levels of ROS (Reactive oxygen species) by significant up-regulation. In the ROS scavenging system, only Mn-SOD was significantly up-regulated at the gene level and was probably interacted with Hsp60 (Heat shock protein 60), which was significantly up-regulated at the protein level, to play a dominant role in antioxidation. Three types of stresses - cell wall stress, starvation, and oxidative stress - were suffered by Pt fruitbodies postharvest, resulting in cell cycle arrest and gene expression disorder.
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Affiliation(s)
- Mu-Xiu Wu
- College of Food Science, South China Agricultural University, Guangzhou 510642, China; Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510642, China
| | - Yuan Zou
- College of Food Science, South China Agricultural University, Guangzhou 510642, China; Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510642, China
| | - Ying-Hao Yu
- College of Food Science, South China Agricultural University, Guangzhou 510642, China; Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510642, China
| | - Bai-Xiong Chen
- College of Food Science, South China Agricultural University, Guangzhou 510642, China; Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510642, China
| | - Qian-Wang Zheng
- College of Food Science, South China Agricultural University, Guangzhou 510642, China; Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510642, China
| | - Zhi-Wei Ye
- College of Food Science, South China Agricultural University, Guangzhou 510642, China; Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510642, China
| | - Tao Wei
- College of Food Science, South China Agricultural University, Guangzhou 510642, China; Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510642, China
| | - Si-Qiang Ye
- College of Food Science, South China Agricultural University, Guangzhou 510642, China; Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510642, China
| | - Li-Qiong Guo
- College of Food Science, South China Agricultural University, Guangzhou 510642, China; Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510642, China.
| | - Jun-Fang Lin
- College of Food Science, South China Agricultural University, Guangzhou 510642, China; Research Center for Micro-Ecological Agent Engineering and Technology of Guangdong Province, Guangzhou 510642, China.
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9
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SIRT3-mediated mitochondrial unfolded protein response weakens breast cancer sensitivity to cisplatin. Genes Genomics 2021; 43:1433-1444. [PMID: 34338986 DOI: 10.1007/s13258-021-01145-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/26/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND Mitochondrial unfolded protein response plays an important role in the occurrence and development of breast cancer. However, the role of mitochondrial unfolded protein response (UPRmt) in the sensitivity of breast cancer to cisplatin chemotherapy has not yet been cleared. OBJECTIVES The purpose of this study is to explore the role of mitochondrial unfolded protein response in breast cancer sensitivity to cisplatin. METHODS In this study, qRT-PCR, Western blotting, Immunofluorescence, CCK-8, Colony formation, Transwell assay and TUNEL staining assay were used to confirm the role of UPRmt in breast cancer cells treated with cisplatin. RESULTS Cisplatin increased the levels of UPRmt including CLPP, HSP60, LONP1 in MCF7 and MDA-MB-231 cells. UPRmt inducer Nicotinamide ribose (NR) could promote the proliferation and invasion of breast cancer cells treated with cisplatin. Importantly, SIRT3 was discovered to increase UPRmt in breast cancer cells and silencing of SIRT3 could inhibit the effect of NR in breast cancer. CONCLUSIONS UPRmt regulated by SIRT3 could protect breast cancer cell from cisplatin. Controlling SIRT3-induced UPR may be a potential therapeutic target to increase the sensitivity of breast cancer chemotherapy.
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Melentev PA, Ryabova EV, Surina NV, Zhmujdina DR, Komissarov AE, Ivanova EA, Boltneva NP, Makhaeva GF, Sliusarenko MI, Yatsenko AS, Mohylyak II, Matiytsiv NP, Shcherbata HR, Sarantseva SV. Loss of swiss cheese in Neurons Contributes to Neurodegeneration with Mitochondria Abnormalities, Reactive Oxygen Species Acceleration and Accumulation of Lipid Droplets in Drosophila Brain. Int J Mol Sci 2021; 22:8275. [PMID: 34361042 PMCID: PMC8347196 DOI: 10.3390/ijms22158275] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/23/2021] [Accepted: 07/27/2021] [Indexed: 12/17/2022] Open
Abstract
Various neurodegenerative disorders are associated with human NTE/PNPLA6 dysfunction. Mechanisms of neuropathogenesis in these diseases are far from clearly elucidated. Hereditary spastic paraplegia belongs to a type of neurodegeneration associated with NTE/PNLPLA6 and is implicated in neuron death. In this study, we used Drosophila melanogaster to investigate the consequences of neuronal knockdown of swiss cheese (sws)-the evolutionarily conserved ortholog of human NTE/PNPLA6-in vivo. Adult flies with the knockdown show longevity decline, locomotor and memory deficits, severe neurodegeneration progression in the brain, reactive oxygen species level acceleration, mitochondria abnormalities and lipid droplet accumulation. Our results suggest that SWS/NTE/PNPLA6 dysfunction in neurons induces oxidative stress and lipid metabolism alterations, involving mitochondria dynamics and lipid droplet turnover in neurodegeneration pathogenesis. We propose that there is a complex mechanism in neurological diseases such as hereditary spastic paraplegia, which includes a stress reaction, engaging mitochondria, lipid droplets and endoplasmic reticulum interplay.
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Affiliation(s)
- Pavel A. Melentev
- Petersburg Nuclear Physics Institute Named by B.P. Konstantinov of NRC «Kurchatov Institute», 188300 Gatchina, Russia; (P.A.M.); (E.V.R.); (N.V.S.); (D.R.Z.); (A.E.K.); (E.A.I.)
| | - Elena V. Ryabova
- Petersburg Nuclear Physics Institute Named by B.P. Konstantinov of NRC «Kurchatov Institute», 188300 Gatchina, Russia; (P.A.M.); (E.V.R.); (N.V.S.); (D.R.Z.); (A.E.K.); (E.A.I.)
| | - Nina V. Surina
- Petersburg Nuclear Physics Institute Named by B.P. Konstantinov of NRC «Kurchatov Institute», 188300 Gatchina, Russia; (P.A.M.); (E.V.R.); (N.V.S.); (D.R.Z.); (A.E.K.); (E.A.I.)
| | - Darya R. Zhmujdina
- Petersburg Nuclear Physics Institute Named by B.P. Konstantinov of NRC «Kurchatov Institute», 188300 Gatchina, Russia; (P.A.M.); (E.V.R.); (N.V.S.); (D.R.Z.); (A.E.K.); (E.A.I.)
| | - Artem E. Komissarov
- Petersburg Nuclear Physics Institute Named by B.P. Konstantinov of NRC «Kurchatov Institute», 188300 Gatchina, Russia; (P.A.M.); (E.V.R.); (N.V.S.); (D.R.Z.); (A.E.K.); (E.A.I.)
| | - Ekaterina A. Ivanova
- Petersburg Nuclear Physics Institute Named by B.P. Konstantinov of NRC «Kurchatov Institute», 188300 Gatchina, Russia; (P.A.M.); (E.V.R.); (N.V.S.); (D.R.Z.); (A.E.K.); (E.A.I.)
| | - Natalia P. Boltneva
- Institute of Physiologically Active Compounds Russian Academy of Sciences, 142432 Chernogolovka, Russia; (N.P.B.); (G.F.M.)
| | - Galina F. Makhaeva
- Institute of Physiologically Active Compounds Russian Academy of Sciences, 142432 Chernogolovka, Russia; (N.P.B.); (G.F.M.)
| | - Mariana I. Sliusarenko
- Institute of Cell Biochemistry, Hannover Medical School, 30625 Hannover, Germany; (M.I.S.); (A.S.Y.); (H.R.S.)
| | - Andriy S. Yatsenko
- Institute of Cell Biochemistry, Hannover Medical School, 30625 Hannover, Germany; (M.I.S.); (A.S.Y.); (H.R.S.)
| | - Iryna I. Mohylyak
- Department of Genetics and Biotechnology, Ivan Franko National University of Lviv, 79005 Lviv, Ukraine; (I.I.M.); (N.P.M.)
| | - Nataliya P. Matiytsiv
- Department of Genetics and Biotechnology, Ivan Franko National University of Lviv, 79005 Lviv, Ukraine; (I.I.M.); (N.P.M.)
| | - Halyna R. Shcherbata
- Institute of Cell Biochemistry, Hannover Medical School, 30625 Hannover, Germany; (M.I.S.); (A.S.Y.); (H.R.S.)
| | - Svetlana V. Sarantseva
- Petersburg Nuclear Physics Institute Named by B.P. Konstantinov of NRC «Kurchatov Institute», 188300 Gatchina, Russia; (P.A.M.); (E.V.R.); (N.V.S.); (D.R.Z.); (A.E.K.); (E.A.I.)
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11
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HSP60 reduction protects against diet-induced obesity by modulating energy metabolism in adipose tissue. Mol Metab 2021; 53:101276. [PMID: 34153520 PMCID: PMC8319365 DOI: 10.1016/j.molmet.2021.101276] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/06/2021] [Accepted: 06/15/2021] [Indexed: 11/29/2022] Open
Abstract
Objective Insulin regulates mitochondrial function, thereby propagating an efficient metabolism. Conversely, diabetes and insulin resistance are linked to mitochondrial dysfunction with a decreased expression of the mitochondrial chaperone HSP60. The aim of this investigation was to determine the effect of a reduced HSP60 expression on the development of obesity and insulin resistance. Methods Control and heterozygous whole-body HSP60 knockout (Hsp60+/−) mice were fed a high-fat diet (HFD, 60% calories from fat) for 16 weeks and subjected to extensive metabolic phenotyping. To understand the effect of HSP60 on white adipose tissue, microarray analysis of gonadal WAT was performed, ex vivo experiments were performed, and a lentiviral knockdown of HSP60 in 3T3-L1 cells was conducted to gain detailed insights into the effect of reduced HSP60 levels on adipocyte homeostasis. Results Male Hsp60+/− mice exhibited lower body weight with lower fat mass. These mice exhibited improved insulin sensitivity compared to control, as assessed by Matsuda Index and HOMA-IR. Accordingly, insulin levels were significantly reduced in Hsp60+/− mice in a glucose tolerance test. However, Hsp60+/− mice exhibited an altered adipose tissue metabolism with elevated insulin-independent glucose uptake, adipocyte hyperplasia in the presence of mitochondrial dysfunction, altered autophagy, and local insulin resistance. Conclusions We discovered that the reduction of HSP60 in mice predominantly affects adipose tissue homeostasis, leading to beneficial alterations in body weight, body composition, and adipocyte morphology, albeit exhibiting local insulin resistance. Mice with reduced HSP60 levels are protected from diet-induced obesity. Hsp60+/− mice exhibit altered adipose tissue energy metabolism. WAT of Hsp60+/− mice exhibit elevated insulin-independent glucose uptake. Hsp60+/− mice show improved global, but impaired WAT insulin action.
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12
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Bonetta R, Hunter GJ, Trinh CH, Borowski T, Fenech AG, Kulp M, Tabares LC, Un S, Hunter T. Substitution of histidine 30 by asparagine in manganese superoxide dismutase alters biophysical properties and supports proliferation in a K562 leukemia cell line. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2021; 50:571-585. [PMID: 34021366 PMCID: PMC8190026 DOI: 10.1007/s00249-021-01544-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 04/22/2021] [Accepted: 04/23/2021] [Indexed: 02/07/2023]
Abstract
We have generated a mutant of C. elegans manganese superoxide dismutase at histidine 30 by site-directed mutagenesis. The structure was solved at a resolution of 1.52 Å by X-ray crystallography (pdb: 6S0D). His30 was targeted, as it forms as a gateway residue at the top of the solvent access funnel to the active site, together with Tyr34. In the wild-type protein, these gateway residues are involved in the hydrogen-bonding network providing the protons necessary for the catalytic reaction at the metal center. However, biophysical characterization and cell viability experiments reveal that a mutation from histidine to asparagine in the H30N mutant modifies metal selectivity in the protein, favoring the uptake of iron over manganese in minimal media conditions, alters active-site coordination from the characteristic trigonal bipyramidal to octahedral geometry, and encourages cellular proliferation in K562 cells, when added exogenously to the cells.
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Affiliation(s)
- Rosalin Bonetta
- Centre of Molecular Medicine & Biobanking, University of Malta, Msida, Malta. .,Barts and the London, School of Medicine and Dentistry, QMUL, Victoria, Malta.
| | - Gary J Hunter
- Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
| | - Chi H Trinh
- Astbury Centre for Structural Molecular Biology, Institute of Molecular and Cellular Biology, University of Leeds, Leeds, UK
| | - Tomasz Borowski
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Krakow, Poland
| | - Anthony G Fenech
- Department of Clinical Pharmacology and Therapeutics, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
| | - Maria Kulp
- Department of Chemistry, Tallinn University of Technology, Tallinn, Estonia
| | - Leandro C Tabares
- Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, CEA, CNRS, 91198, Gif-sur-Yvette, France
| | - Sun Un
- Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, CEA, CNRS, 91198, Gif-sur-Yvette, France
| | - Thérèse Hunter
- Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
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13
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Central Acting Hsp10 Regulates Mitochondrial Function, Fatty Acid Metabolism, and Insulin Sensitivity in the Hypothalamus. Antioxidants (Basel) 2021; 10:antiox10050711. [PMID: 33946318 PMCID: PMC8145035 DOI: 10.3390/antiox10050711] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/23/2021] [Accepted: 04/28/2021] [Indexed: 12/24/2022] Open
Abstract
Mitochondria are critical for hypothalamic function and regulators of metabolism. Hypothalamic mitochondrial dysfunction with decreased mitochondrial chaperone expression is present in type 2 diabetes (T2D). Recently, we demonstrated that a dysregulated mitochondrial stress response (MSR) with reduced chaperone expression in the hypothalamus is an early event in obesity development due to insufficient insulin signaling. Although insulin activates this response and improves metabolism, the metabolic impact of one of its members, the mitochondrial chaperone heat shock protein 10 (Hsp10), is unknown. Thus, we hypothesized that a reduction of Hsp10 in hypothalamic neurons will impair mitochondrial function and impact brain insulin action. Therefore, we investigated the role of chaperone Hsp10 by introducing a lentiviral-mediated Hsp10 knockdown (KD) in the hypothalamic cell line CLU-183 and in the arcuate nucleus (ARC) of C57BL/6N male mice. We analyzed mitochondrial function and insulin signaling utilizing qPCR, Western blot, XF96 Analyzer, immunohistochemistry, and microscopy techniques. We show that Hsp10 expression is reduced in T2D mice brains and regulated by leptin in vitro. Hsp10 KD in hypothalamic cells induced mitochondrial dysfunction with altered fatty acid metabolism and increased mitochondria-specific oxidative stress resulting in neuronal insulin resistance. Consequently, the reduction of Hsp10 in the ARC of C57BL/6N mice caused hypothalamic insulin resistance with acute liver insulin resistance.
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14
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Comparative transcriptome analysis of the gills of Cardisoma armatum provides novel insights into the terrestrial adaptive related mechanism of air exposure stress. Genomics 2021; 113:1193-1202. [PMID: 33711456 DOI: 10.1016/j.ygeno.2021.03.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 12/28/2020] [Accepted: 03/05/2021] [Indexed: 11/20/2022]
Abstract
Cardisoma armatum is a typical member of the Gecarcinidae which show significant behavioral, morphological, physiological, and/or biochemical adaptations permitting extended activities on the land. The special gills (branchiostegal lung) of C. armatum play an important role in maintaining osmotic pressure balance and obtaining oxygen to adapt to the terrestrial environment. However, adaptive molecular mechanisms responding to air exposure in C. armatum are still poorly understood. In this study, transcriptomic analysis and histological analysis were conducted on the gills to test adaptive capabilities over 8 h between the aerial exposure (AE) and the water immersion (WI) group. Differentially expressed genes (DEGs) related to terrestrial adaptation were categorized into four broad categories: ion transport, acid-base balance, energy metabolism and immune response. This is the first research to reveal the molecular mechanism of terrestrial adaptation in C. armatum, and will provide new insight into the molecular genetic basis of terrestrial adaptation in crabs.
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15
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DNA vaccine encoding heat shock protein 90 protects from murine lupus. Arthritis Res Ther 2020; 22:152. [PMID: 32571400 PMCID: PMC7310240 DOI: 10.1186/s13075-020-02246-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 06/12/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Systemic lupus erythematosus (SLE) is a chronic autoimmune disease characterized by the presence of autoantibodies to multiple self-antigens, including heat shock proteins (HSP). Because of the increased expression of HSP90 and abnormal immune responses to it in SLE, we investigated whether an HSP90 DNA vaccine could modulate the development and clinical manifestations of SLE in lupus-prone mice. METHODS (NZB x NZW)F1 (NZB/W) mice were vaccinated with DNA constructs encoding HSP90 or control plasmids or vehicle. The mice were then monitored for survival, circulating anti-dsDNA autoantibodies, and immune phenotypes. Renal disease was evaluated by immunohistochemistry and by the measurement of proteinuria. RESULTS Vaccination with HSP90 DNA reduced lupus disease manifestations and prolonged the survival of NZB/W mice. The protective effects of the HSP90 DNA vaccine associated with the induction of tolerogenic dendritic cells (DCs) and an expansion of T regulatory cells (Tregs). CONCLUSIONS The beneficial effects of DNA vaccination with HSP90 in murine SLE support the possibility of HSP90-based therapeutic modalities of intervention in SLE.
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16
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Bie AS, Cömert C, Körner R, Corydon TJ, Palmfeldt J, Hipp MS, Hartl FU, Bross P. An inventory of interactors of the human HSP60/HSP10 chaperonin in the mitochondrial matrix space. Cell Stress Chaperones 2020; 25:407-416. [PMID: 32060690 PMCID: PMC7192978 DOI: 10.1007/s12192-020-01080-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/14/2020] [Accepted: 02/10/2020] [Indexed: 10/25/2022] Open
Abstract
The HSP60/HSP10 chaperonin assists folding of proteins in the mitochondrial matrix space by enclosing them in its central cavity. The chaperonin forms part of the mitochondrial protein quality control system. It is essential for cellular survival and mutations in its subunits are associated with rare neurological disorders. Here we present the first survey of interactors of the human mitochondrial HSP60/HSP10 chaperonin. Using a protocol involving metabolic labeling of HEK293 cells, cross-linking, and immunoprecipitation of HSP60, we identified 323 interacting proteins. As expected, the vast majority of these proteins are localized to the mitochondrial matrix space. We find that approximately half of the proteins annotated as mitochondrial matrix proteins interact with the HSP60/HSP10 chaperonin. They cover a broad spectrum of functions and metabolic pathways including the mitochondrial protein synthesis apparatus, the respiratory chain, and mitochondrial protein quality control. Many of the genes encoding HSP60 interactors are annotated as disease genes. There is a correlation between relative cellular abundance and relative abundance in the HSP60 immunoprecipitates. Nineteen abundant matrix proteins occupy more than 60% of the HSP60/HSP10 chaperonin capacity. The reported inventory of interactors can form the basis for interrogating which proteins are especially dependent on the chaperonin.
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Affiliation(s)
- Anne Sigaard Bie
- Research Unit for Molecular Medicine, Department of Clinical Medicine, Aarhus University and Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - Cagla Cömert
- Research Unit for Molecular Medicine, Department of Clinical Medicine, Aarhus University and Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - Roman Körner
- Department of Cellular Biochemistry, Max Planck Institute of Biochemistry, Am Klopferspitz 18, D-82152, Martinsried, Germany
| | - Thomas J Corydon
- Department of Biomedicine, Aarhus University, Hoegh-Guldbergsgade 10, 8000, Aarhus C, Denmark
- Department of Ophthalmology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - Johan Palmfeldt
- Research Unit for Molecular Medicine, Department of Clinical Medicine, Aarhus University and Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - Mark S Hipp
- Department of Cellular Biochemistry, Max Planck Institute of Biochemistry, Am Klopferspitz 18, D-82152, Martinsried, Germany
- Department of Biomedical Sciences of Cells and Systems, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
- School of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, 26111, Oldenburg, Germany
| | - F Ulrich Hartl
- Department of Cellular Biochemistry, Max Planck Institute of Biochemistry, Am Klopferspitz 18, D-82152, Martinsried, Germany
| | - Peter Bross
- Research Unit for Molecular Medicine, Department of Clinical Medicine, Aarhus University and Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark.
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17
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MitCHAP-60 and Hereditary Spastic Paraplegia SPG-13 Arise from an Inactive hsp60 Chaperonin that Fails to Fold the ATP Synthase β-Subunit. Sci Rep 2019; 9:12300. [PMID: 31444388 PMCID: PMC6707239 DOI: 10.1038/s41598-019-48762-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 08/09/2019] [Indexed: 12/01/2022] Open
Abstract
The human mitochondrial heat shock protein 60 (hsp60) is a tetradecameric chaperonin that folds proteins in the mitochondrial matrix. An hsp60 D3G mutation leads to MitCHAP-60, an early onset neurodegenerative disease while hsp60 V72I has been linked to SPG13, a form of hereditary spastic paraplegia. Previous studies have suggested that these mutations impair the protein folding activity of hsp60 complexes but the detailed mechanism by which these mutations lead the neuromuscular diseases remains unknown. It is known, is that the β-subunit of the human mitochondrial ATP synthase co-immunoprecipitates with hsp60 indicating that the β-subunit is likely a substrate for the chaperonin. Therefore, we hypothesized that hsp60 mutations cause misfolding of proteins that are critical for aerobic respiration. Negative-stain electron microscopy and DLS results suggest that the D3G and V72I complexes fall apart when treated with ATP or ADP and are therefore unable to fold denatured substrates such as α-lactalbumin, malate dehydrogenase (MDH), and the β-subunit of ATP synthase in in-vitro protein-folding assays. These data suggests that hsp60 plays a crucial role in folding important players in aerobic respiration such as the β-subunit of the ATP synthase. The hsp60 mutations D3G and V72I impair its ability to fold mitochondrial substrates leading to abnormal ATP synthesis and the development of the MitCHAP-60 and SPG13 neuromuscular degenerative disorders.
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18
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Fan F, Duan Y, Yang F, Trexler C, Wang H, Huang L, Li Y, Tang H, Wang G, Fang X, Liu J, Jia N, Chen J, Ouyang K. Deletion of heat shock protein 60 in adult mouse cardiomyocytes perturbs mitochondrial protein homeostasis and causes heart failure. Cell Death Differ 2019; 27:587-600. [PMID: 31209364 PMCID: PMC7205885 DOI: 10.1038/s41418-019-0374-x] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 05/10/2019] [Accepted: 06/05/2019] [Indexed: 01/22/2023] Open
Abstract
To maintain healthy mitochondrial enzyme content and function, mitochondria possess a complex protein quality control system, which is composed of different endogenous sets of chaperones and proteases. Heat shock protein 60 (HSP60) is one of these mitochondrial molecular chaperones and has been proposed to play a pivotal role in the regulation of protein folding and the prevention of protein aggregation. However, the physiological function of HSP60 in mammalian tissues is not fully understood. Here we generated an inducible cardiac-specific HSP60 knockout mouse model, and demonstrated that HSP60 deletion in adult mouse hearts altered mitochondrial complex activity, mitochondrial membrane potential, and ROS production, and eventually led to dilated cardiomyopathy, heart failure, and lethality. Proteomic analysis was performed in purified control and mutant mitochondria before mutant hearts developed obvious cardiac abnormalities, and revealed a list of mitochondrial-localized proteins that rely on HSP60 (HSP60-dependent) for correctly folding in mitochondria. We also utilized an in vitro system to assess the effects of HSP60 deletion on mitochondrial protein import and protein stability after import, and found that both HSP60-dependent and HSP60-independent mitochondrial proteins could be normally imported in mutant mitochondria. However, the former underwent degradation in mutant mitochondria after import, suggesting that the protein exhibited low stability in mutant mitochondria. Interestingly, the degradation could be almost fully rescued by a non-specific LONP1 and proteasome inhibitor, MG132, in mutant mitochondria. Therefore, our results demonstrated that HSP60 plays an essential role in maintaining normal cardiac morphology and function by regulating mitochondrial protein homeostasis and mitochondrial function.
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Affiliation(s)
- Feifei Fan
- School of Chemical Biology and Biotechnology, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, 518055, Shenzhen, China
| | - Yaoyun Duan
- School of Chemical Biology and Biotechnology, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, 518055, Shenzhen, China
| | - Feili Yang
- School of Chemical Biology and Biotechnology, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, 518055, Shenzhen, China
| | - Christa Trexler
- Department of Medicine, School of Medicine, University of California San Diego, La Jolla, CA, 92093, USA
| | - Hong Wang
- School of Chemical Biology and Biotechnology, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, 518055, Shenzhen, China
| | - Lei Huang
- Shenzhen Peking University Hospital, 518055, Shenzhen, China
| | - Yali Li
- School of Chemical Biology and Biotechnology, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, 518055, Shenzhen, China
| | - Huayuan Tang
- School of Chemical Biology and Biotechnology, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, 518055, Shenzhen, China
| | - Gang Wang
- Department of Pathophysiology, School of Medicine, Shenzhen University, 518055, Shenzhen, China
| | - Xi Fang
- Department of Medicine, School of Medicine, University of California San Diego, La Jolla, CA, 92093, USA
| | - Jie Liu
- Department of Pathophysiology, School of Medicine, Shenzhen University, 518055, Shenzhen, China
| | - Nan Jia
- Shenzhen People's Hospital, 518055, Shenzhen, China
| | - Ju Chen
- Department of Medicine, School of Medicine, University of California San Diego, La Jolla, CA, 92093, USA.
| | - Kunfu Ouyang
- School of Chemical Biology and Biotechnology, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, 518055, Shenzhen, China.
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Panax Notoginseng Saponins Ameliorate A β-Mediated Neurotoxicity in C. elegans through Antioxidant Activities. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:7621043. [PMID: 31275419 PMCID: PMC6582912 DOI: 10.1155/2019/7621043] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 05/21/2019] [Indexed: 11/25/2022]
Abstract
The deposition of amyloid beta (Aβ) is the main hallmark of Alzheimer's disease (AD) and there is no effective drug to cure the progressive cognitive loss or memory deficits caused by the aggregative toxicity of Aβ protein. Oxidative stress has been hypothesized to play a role in progressive neurodegenerative diseases like AD. Panax notoginseng saponin (PNS) from the rhizome of “pseudo-ginseng” exhibits potent antioxidant effects on aging process in neuron cells and animals. By using C. elegans as an ideal model organism, the present study shows that PNS (0.5–4 mg/mL) can significantly inhibit AD-like symptoms of worm paralysis and enhance resistance to oxidative stress induced by paraquat and aging conditions. Additionally, PNS extends lifespan and maintains healthspan of C. elegans by improving the swimming prowess and fertility at old age. It markedly activates the expression of SKN-1 mRNA, which further supports SKN-1 signaling pathway which is involved in the therapeutic effect of PNS on AD C. elegans. Our results provide direct evidence on PNS for treating AD on gene level and theoretical foundation for reshaping medicinal products of PNS in the future.
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20
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Martinez G, Kherraf ZE, Zouari R, Fourati Ben Mustapha S, Saut A, Pernet-Gallay K, Bertrand A, Bidart M, Hograindleur JP, Amiri-Yekta A, Kharouf M, Karaouzène T, Thierry-Mieg N, Dacheux-Deschamps D, Satre V, Bonhivers M, Touré A, Arnoult C, Ray PF, Coutton C. Whole-exome sequencing identifies mutations in FSIP2 as a recurrent cause of multiple morphological abnormalities of the sperm flagella. Hum Reprod 2019; 33:1973-1984. [PMID: 30137358 DOI: 10.1093/humrep/dey264] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 07/13/2018] [Indexed: 12/30/2022] Open
Abstract
STUDY QUESTION Can whole-exome sequencing (WES) of infertile patients identify new genes responsible for multiple morphological abnormalities of the sperm flagella (MMAF)? SUMMARY ANSWER WES analysis of 78 infertile men with a MMAF phenotype permitted the identification of four homozygous mutations in the fibrous sheath (FS) interacting protein 2 (FSIP2) gene in four unrelated individuals. WHAT IS KNOWN ALREADY The use of high-throughput sequencing techniques revealed that mutations in the dynein axonemal heavy chain 1 (DNAH1) gene, and in the cilia and flagella associated protein 43 (CFAP43) and 44 (CFAP44) genes account for approximately one-third of MMAF cases thus indicating that other relevant genes await identification. STUDY DESIGN, SIZE, DURATION This was a retrospective genetics study of 78 patients presenting a MMAF phenotype who were recruited in three fertility clinics between 2008 and 2015. Control sperm samples were obtained from normospermic donors. Allelic frequency for control subjects was derived from large public databases. PARTICIPANTS/MATERIALS, SETTING, METHODS WES was performed for all 78 subjects. All identified variants were confirmed by Sanger sequencing. Relative mRNA expression levels for the selected candidate gene (FSIP2) was assessed by quantitative RT-PCR in a panel of normal human and mouse tissues. To characterize the structural and ultrastructural anomalies present in patients' sperm, immunofluorescence (IF) was performed on sperm samples from two subjects with a mutation and one control and transmission electron microscopy (TEM) analyses was performed on sperm samples from one subject with a mutation and one control. MAIN RESULTS AND THE ROLE OF CHANCE We identified four unrelated patients (4/78, 5.1%) with homozygous loss of function mutations in the FSIP2 gene, which encodes a protein of the sperm FS and is specifically expressed in human and mouse testis. None of these mutations were reported in control sequence databases. TEM analyses showed a complete disorganization of the FS associated with axonemal defects. IF analyses confirmed that the central-pair microtubules and the inner and outer dynein arms of the axoneme were abnormal in all four patients carrying FSIP2 mutations. Importantly, and in contrast to what was observed in patients with MMAF and mutations in other MMAF-related genes (DNAH1, CFAP43 and CFAP44), mutations in FSIP2 led to the absence of A-kinase anchoring protein 4 (AKAP4). LIMITATIONS, REASONS FOR CAUTION The low number of biological samples and the absence of a reliable anti-FSIP2 antibody prevented the formal demonstration that the FSIP2 protein was absent in sperm from subjects with a FSIP2 mutation. WIDER IMPLICATIONS OF THE FINDINGS Our findings indicate that FSIP2 is one of the main genes involved in MMAF syndrome. In humans, genes previously associated with a MMAF phenotype encoded axonemal-associated proteins (DNAH1, CFAP43 and CFAP44). We show here that FSIP2, a protein of the sperm FS, is also logically associated with MMAF syndrome as we showed that it is necessary for FS assembly and for the overall axonemal and flagellar biogenesis. As was suggested before in mouse and man, our results also suggest that defects in AKAP4, one of the main proteins interacting with FSIP2, would induce a MMAF phenotype. Finally, this work reinforces the demonstration that WES sequencing is a good strategy to reach a genetic diagnosis for patients with severe male infertility phenotypes. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by the following grants: the 'MAS-Flagella' project financed by the French ANR and the DGOS for the program PRTS 2014 (14-CE15) and the 'Whole genome sequencing of patients with Flagellar Growth Defects (FGD)' project financed by the Fondation Maladies Rares for the program Séquençage à haut débit 2012. The authors have no conflict of interest.
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Affiliation(s)
- Guillaume Martinez
- University Grenoble Alpes, INSERM U1209, CNRS UMR 5309, Institute for Advanced Biosciences, Team Genetics Epigenetics and Therapies of Infertility, Grenoble, France.,CHU Grenoble Alpes, UM de Génétique Chromosomique, Grenoble, France
| | - Zine-Eddine Kherraf
- University Grenoble Alpes, INSERM U1209, CNRS UMR 5309, Institute for Advanced Biosciences, Team Genetics Epigenetics and Therapies of Infertility, Grenoble, France.,CHU de Grenoble, UM GI-DPI, Grenoble, France
| | - Raoudha Zouari
- Clinique des Jasmins, 23, Av. Louis BRAILLE 1002 Belvedere, Tunis, Tunisia
| | | | - Antoine Saut
- University Grenoble Alpes, INSERM U1209, CNRS UMR 5309, Institute for Advanced Biosciences, Team Genetics Epigenetics and Therapies of Infertility, Grenoble, France.,CHU Grenoble Alpes, UM de Génétique Chromosomique, Grenoble, France
| | | | - Anne Bertrand
- Grenoble Neuroscience Institute, INSERM 1216, Grenoble, France
| | - Marie Bidart
- CHU Grenoble Alpes, UM de Biochimie Génétique et Moléculaire, Grenoble, France
| | - Jean Pascal Hograindleur
- University Grenoble Alpes, INSERM U1209, CNRS UMR 5309, Institute for Advanced Biosciences, Team Genetics Epigenetics and Therapies of Infertility, Grenoble, France
| | - Amir Amiri-Yekta
- University Grenoble Alpes, INSERM U1209, CNRS UMR 5309, Institute for Advanced Biosciences, Team Genetics Epigenetics and Therapies of Infertility, Grenoble, France.,CHU Grenoble Alpes, UM de Biochimie Génétique et Moléculaire, Grenoble, France.,Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Mahmoud Kharouf
- Clinique des Jasmins, 23, Av. Louis BRAILLE 1002 Belvedere, Tunis, Tunisia
| | - Thomas Karaouzène
- University Grenoble Alpes, INSERM U1209, CNRS UMR 5309, Institute for Advanced Biosciences, Team Genetics Epigenetics and Therapies of Infertility, Grenoble, France.,University Grenoble Alpes/CNRS, TIMC-IMAG, Grenoble, France
| | | | - Denis Dacheux-Deschamps
- Université de Bordeaux, Microbiologie Fondamentale et Pathogénicité, CNRS UMR, Bordeaux, France.,Institut Polytechnique de Bordeaux, Microbiologie Fondamentale et Pathogénicité, UMR-CNRS 5234, Bordeaux, France
| | - Véronique Satre
- University Grenoble Alpes, INSERM U1209, CNRS UMR 5309, Institute for Advanced Biosciences, Team Genetics Epigenetics and Therapies of Infertility, Grenoble, France.,CHU Grenoble Alpes, UM de Génétique Chromosomique, Grenoble, France
| | - Mélanie Bonhivers
- Université de Bordeaux, Microbiologie Fondamentale et Pathogénicité, CNRS UMR, Bordeaux, France.,Institut Polytechnique de Bordeaux, Microbiologie Fondamentale et Pathogénicité, UMR-CNRS 5234, Bordeaux, France
| | - Aminata Touré
- INSERM U1016, Institut Cochin, Paris, France.,Centre National de la Recherche Scientifique UMR8104, Paris, France.,Faculté de Médecine, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Christophe Arnoult
- University Grenoble Alpes, INSERM U1209, CNRS UMR 5309, Institute for Advanced Biosciences, Team Genetics Epigenetics and Therapies of Infertility, Grenoble, France
| | - Pierre F Ray
- University Grenoble Alpes, INSERM U1209, CNRS UMR 5309, Institute for Advanced Biosciences, Team Genetics Epigenetics and Therapies of Infertility, Grenoble, France.,CHU de Grenoble, UM GI-DPI, Grenoble, France
| | - Charles Coutton
- University Grenoble Alpes, INSERM U1209, CNRS UMR 5309, Institute for Advanced Biosciences, Team Genetics Epigenetics and Therapies of Infertility, Grenoble, France.,CHU Grenoble Alpes, UM de Génétique Chromosomique, Grenoble, France
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21
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Wardelmann K, Blümel S, Rath M, Alfine E, Chudoba C, Schell M, Cai W, Hauffe R, Warnke K, Flore T, Ritter K, Weiß J, Kahn CR, Kleinridders A. Insulin action in the brain regulates mitochondrial stress responses and reduces diet-induced weight gain. Mol Metab 2019; 21:68-81. [PMID: 30670351 PMCID: PMC6407370 DOI: 10.1016/j.molmet.2019.01.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 12/23/2018] [Accepted: 01/02/2019] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE Insulin action in the brain controls metabolism and brain function, which is linked to proper mitochondrial function. Conversely, brain insulin resistance associates with mitochondrial stress and metabolic and neurodegenerative diseases. In the present study, we aimed to decipher the impact of hypothalamic insulin action on mitochondrial stress responses, function and metabolism. METHODS To investigate the crosstalk of insulin action and mitochondrial stress responses (MSR), namely the mitochondrial unfolded protein response (UPRmt) and integrated stress response (ISR), qPCR, western blotting, and mitochondrial activity assays were performed. These methods were used to analyze the hypothalamic cell line CLU183 treated with insulin in the presence or absence of the insulin receptor as well as in mice fed a high fat diet (HFD) for three days and STZ-treated mice without or with insulin therapy. Intranasal insulin treatment was used to investigate the effect of acute brain insulin action on metabolism and mitochondrial stress responses. RESULTS Acute HFD feeding reduces hypothalamic mitochondrial stress responsive gene expression of Atf4, Chop, Hsp60, Hsp10, ClpP, and Lonp1 in C57BL/6N mice. We show that insulin via ERK activation increases the expression of MSR genes in vitro as well as in the hypothalamus of streptozotocin-treated mice. This regulation propagates mitochondrial function by controlling mitochondrial proteostasis and prevents excessive autophagy under serum deprivation. Finally, short-term intranasal insulin treatment activates MSR gene expression in the hypothalamus of HFD-fed C57BL/6N mice and reduces food intake and body weight development. CONCLUSIONS We define hypothalamic insulin action as a novel master regulator of MSR, ensuring proper mitochondrial function by controlling mitochondrial proteostasis and regulating metabolism.
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Affiliation(s)
- Kristina Wardelmann
- German Institute of Human Nutrition Potsdam-Rehbruecke, Central Regulation of Metabolism, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Land Str. 1, 85764 Neuherberg, Germany
| | - Sabine Blümel
- German Institute of Human Nutrition Potsdam-Rehbruecke, Central Regulation of Metabolism, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Land Str. 1, 85764 Neuherberg, Germany
| | - Michaela Rath
- German Institute of Human Nutrition Potsdam-Rehbruecke, Central Regulation of Metabolism, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Land Str. 1, 85764 Neuherberg, Germany
| | - Eugenia Alfine
- German Institute of Human Nutrition Potsdam-Rehbruecke, Central Regulation of Metabolism, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Land Str. 1, 85764 Neuherberg, Germany
| | - Chantal Chudoba
- German Institute of Human Nutrition Potsdam-Rehbruecke, Central Regulation of Metabolism, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Land Str. 1, 85764 Neuherberg, Germany
| | - Mareike Schell
- German Institute of Human Nutrition Potsdam-Rehbruecke, Central Regulation of Metabolism, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Land Str. 1, 85764 Neuherberg, Germany
| | - Weikang Cai
- Section of Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215, USA
| | - Robert Hauffe
- German Institute of Human Nutrition Potsdam-Rehbruecke, Central Regulation of Metabolism, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Land Str. 1, 85764 Neuherberg, Germany
| | - Kathrin Warnke
- German Institute of Human Nutrition Potsdam-Rehbruecke, Central Regulation of Metabolism, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Land Str. 1, 85764 Neuherberg, Germany
| | - Tanina Flore
- German Institute of Human Nutrition Potsdam-Rehbruecke, Central Regulation of Metabolism, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Land Str. 1, 85764 Neuherberg, Germany
| | - Katrin Ritter
- German Institute of Human Nutrition Potsdam-Rehbruecke, Central Regulation of Metabolism, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Land Str. 1, 85764 Neuherberg, Germany
| | - Jürgen Weiß
- German Center for Diabetes Research (DZD), Ingolstaedter Land Str. 1, 85764 Neuherberg, Germany; Institute for Clinical Biochemistry and Pathobiochemistry, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research, Düsseldorf, Germany
| | - C Ronald Kahn
- Section of Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215, USA
| | - André Kleinridders
- German Institute of Human Nutrition Potsdam-Rehbruecke, Central Regulation of Metabolism, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany; German Center for Diabetes Research (DZD), Ingolstaedter Land Str. 1, 85764 Neuherberg, Germany.
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22
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Cömert C, Fernandez-Guerra P, Bross P. A Cell Model for HSP60 Deficiencies: Modeling Different Levels of Chaperonopathies Leading to Oxidative Stress and Mitochondrial Dysfunction. Methods Mol Biol 2019; 1873:225-239. [PMID: 30341613 DOI: 10.1007/978-1-4939-8820-4_14] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Besides providing the majority of ATP production in cells, mitochondria are also involved in many other cellular functions and are central for cellular stress signaling. Mitochondrial dysfunction induces not only inherited mitochondrial disorders but also contributes to neurodegenerative diseases, cancer, diabetes, and metabolic syndrome. The HSP60/HSP10 molecular chaperone complex facilitates folding of mitochondrial proteins and is thus an important factor for many mitochondrial functions. To model different degrees of oxidative stress and mitochondrial dysfunction we here describe a HEK293 derived Flp-In cell system with stable insertion and tunable expression of HSP60 cDNA carrying a dominant negative mutation. When expressed the dominant negative HSP60 mutant is incorporated into endogenously encoded HSP60/HSP10 complexes and impairs chaperone activity of the HSP60/HSP10 complex in a dose dependent manner. Using this system, different levels of oxidative stress and mitochondrial dysfunction challenges can be generated depending on the induction level of the mutant HSP60 cDNA insert. Here we describe our system and pertinent analysis methodology for use in studies of mitochondrial chaperone deficiency and resulting effects of increased production of reactive oxygen species and mitochondrial dysfunction.
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Affiliation(s)
- Cagla Cömert
- Research Unit for Molecular Medicine, Department of Clinical Medicine, HEALTH, Aarhus University, and Department of Clinical Biochemistry Aarhus University Hospital, Aarhus, Denmark
- Department of Biochemistry, Aarhus University Hospital, Aarhus, Denmark
| | - Paula Fernandez-Guerra
- Research Unit for Molecular Medicine, Department of Clinical Medicine, HEALTH, Aarhus University, and Department of Clinical Biochemistry Aarhus University Hospital, Aarhus, Denmark
- Department of Biochemistry, Aarhus University Hospital, Aarhus, Denmark
| | - Peter Bross
- Research Unit for Molecular Medicine, Department of Clinical Medicine, HEALTH, Aarhus University, and Department of Clinical Biochemistry Aarhus University Hospital, Aarhus, Denmark.
- Department of Biochemistry, Aarhus University Hospital, Aarhus, Denmark.
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23
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Zhu DD, Yuan JM, Zhu R, Wang Y, Qian ZY, Zou JG. Pathway-based analysis of genome-wide association study of circadian phenotypes. J Biomed Res 2018; 32:361-370. [PMID: 29784899 PMCID: PMC6163116 DOI: 10.7555/jbr.32.20170102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Sleepiness affects normal social life, which attracts more and more attention. Circadian phenotypes contribute to obvious individual differences in susceptibility to sleepiness. We aimed to identify candidate single nucleotide polymorphisms (SNPs) which may cause circadian phenotypes, elucidate the potential mechanisms, and generate corresponding SNP-gene-pathways. A genome-wide association studies (GWAS) dataset of circadian phenotypes was utilized in the study. Then, the Identify Candidate Causal SNPs and Pathways analysis was employed to the GWAS dataset after quality control filters. Furthermore, genotype-phenotype association analysis was performed with HapMap database. Four SNPs in three different genes were determined to correlate with usual weekday bedtime, totally providing seven hypothetical mechanisms. Eleven SNPs in six genes were identified to correlate with usual weekday sleep duration, which provided six hypothetical pathways. Our results demonstrated that fifteen candidate SNPs in eight genes played vital roles in six hypothetical pathways implicated in usual weekday bedtime and six potential pathways involved in usual weekday sleep duration.
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Affiliation(s)
- Di-di Zhu
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Jia-Min Yuan
- Department of Cardiology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Rui Zhu
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Yao Wang
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Zhi-Yong Qian
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Jian-Gang Zou
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
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24
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Liu J, Wang M, Yi H, Liu M, Zhu D, Wu Y, Jia R, Sun K, Yang Q, Chen S, Zhao X, Chen X, Cheng A. ATPase activity of GroEL is dependent on GroES and it is response for environmental stress in Riemerella anatipestifer. Microb Pathog 2018; 121:51-58. [PMID: 29678739 DOI: 10.1016/j.micpath.2018.04.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 04/06/2018] [Accepted: 04/16/2018] [Indexed: 12/13/2022]
Abstract
Riemerella anatipestifer (Ra) is a serious gram-negative pathogen of birds and can cause considerable economic losses. The survival mechanisms of R. anatipestifer in the host and environment remain largely unknown. Previous results have demonstrated that GroEL is a molecular chaperone and an important component of the response to various stresses in most bacteria. This study focused on whether GroEL is implicated in this process in R. anatipestifer. The 1629 bp groEL is highly conserved among other gram-negative bacteria (levels of sequence similarity > 60%). A structural analysis and ATPase activity assay revealed that RaGroEL had weak ATPase activity and that the enzyme activity was temperature and ion dependent. GroES partially enhanced the GroEL ATPase activity in the same temperature range. In addition, we studied the mRNA expression of groEL under abiotic stresses caused by heat shock, pH, salt and hydrogen peroxide. These stresses increased the transcription of groEL to varying degrees. In R. anatipestifer, the ATPase activity of GroEL is dependent on GroES and temperature. The expression of groEL was strongly induced by heat, pH, hydrogen peroxide and salt stress. This study is the first to show that GroEL in R. anatipestifer might play a major role in response to environmental stress.
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Affiliation(s)
- Jibin Liu
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, 611130, Sichuan Province, PR China; Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China
| | - Mingshu Wang
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, 611130, Sichuan Province, PR China; Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China
| | - Haibo Yi
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, 611130, Sichuan Province, PR China; Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China
| | - Mafeng Liu
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, 611130, Sichuan Province, PR China; Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China
| | - Dekang Zhu
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, 611130, Sichuan Province, PR China; Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China
| | - Ying Wu
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, 611130, Sichuan Province, PR China; Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China
| | - Renyong Jia
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, 611130, Sichuan Province, PR China; Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China
| | - Kunfeng Sun
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, 611130, Sichuan Province, PR China; Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China
| | - Qiao Yang
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, 611130, Sichuan Province, PR China; Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China
| | - Shun Chen
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, 611130, Sichuan Province, PR China; Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China
| | - Xinxin Zhao
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, 611130, Sichuan Province, PR China; Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China
| | - Xiaoyue Chen
- Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China
| | - Anchun Cheng
- Institute of Preventive Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, 611130, Sichuan Province, PR China; Avian Disease Research Center, College of Veterinary Medicine of Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Sichuan Agricultural University, Wenjiang, Chengdu City, Sichuan Province, 611130, PR China.
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25
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Dong FN, Amiri-Yekta A, Martinez G, Saut A, Tek J, Stouvenel L, Lorès P, Karaouzène T, Thierry-Mieg N, Satre V, Brouillet S, Daneshipour A, Hosseini SH, Bonhivers M, Gourabi H, Dulioust E, Arnoult C, Touré A, Ray PF, Zhao H, Coutton C. Absence of CFAP69 Causes Male Infertility due to Multiple Morphological Abnormalities of the Flagella in Human and Mouse. Am J Hum Genet 2018; 102:636-648. [PMID: 29606301 DOI: 10.1016/j.ajhg.2018.03.007] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 03/05/2018] [Indexed: 10/17/2022] Open
Abstract
The multiple morphological abnormalities of the flagella (MMAF) phenotype is among the most severe forms of sperm defects responsible for male infertility. The phenotype is characterized by the presence in the ejaculate of immotile spermatozoa with severe flagellar abnormalities including flagella being short, coiled, absent, and of irregular caliber. Recent studies have demonstrated that MMAF is genetically heterogeneous, and genes thus far associated with MMAF account for only one-third of cases. Here we report the identification of homozygous truncating mutations (one stop-gain and one splicing variant) in CFAP69 of two unrelated individuals by whole-exome sequencing of a cohort of 78 infertile men with MMAF. CFAP69 encodes an evolutionarily conserved protein found at high levels in the testis. Immunostaining experiments in sperm from fertile control individuals showed that CFAP69 localized to the midpiece of the flagellum, and the absence of CFAP69 was confirmed in both individuals carrying CFPA69 mutations. Additionally, we found that sperm from a Cfap69 knockout mouse model recapitulated the MMAF phenotype. Ultrastructural analysis of testicular sperm from the knockout mice showed severe disruption of flagellum structure, but histological analysis of testes from these mice revealed the presence of all stages of the seminiferous epithelium, indicating that the overall progression of spermatogenesis is preserved and that the sperm defects likely arise during spermiogenesis. Together, our data indicate that CFAP69 is necessary for flagellum assembly/stability and that in both humans and mice, biallelic truncating mutations in CFAP69 cause autosomal-recessive MMAF and primary male infertility.
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26
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Zhou C, Sun H, Zheng C, Gao J, Fu Q, Hu N, Shao X, Zhou Y, Xiong J, Nie K, Zhou H, Shen L, Fang H, Lyu J. Oncogenic HSP60 regulates mitochondrial oxidative phosphorylation to support Erk1/2 activation during pancreatic cancer cell growth. Cell Death Dis 2018; 9:161. [PMID: 29415987 PMCID: PMC5833694 DOI: 10.1038/s41419-017-0196-z] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 11/05/2017] [Accepted: 12/05/2017] [Indexed: 12/25/2022]
Abstract
HSP60 is a mitochondrial localized quality control protein responsible for maintaining mitochondrial function. Although HSP60 is considered both a tumor suppressor and promoter in different types of cancer, the role of HSP60 in human pancreatic ductal adenocarcinoma (PDAC) remains unknown. In this study, we demonstrated that HSP60 was aberrantly expressed in human pancreatic cancer tissues and cell lines. Analysis of the Cancer Genome Atlas database revealed that HSP60 expression is positively correlated with pancreatic cancer. Further, knockdown of HSP60 attenuated pancreatic ductal cancer cell proliferation and migration/invasion, whereas ectopic expression of HSP60 increased tumorigenesis. Using an in vivo tumorigenicity assay, we confirmed that HSP60 promoted the growth of pancreatic ductal cancer cells. Functional analyses demonstrated that HSP60 plays a key role in the regulation of mitochondrial function. Mechanistically, both HSP60 knockdown and oxidative phosphorylation (OXPHOS) inhibition by metformin decreased Erk1/2 phosphorylation and induced apoptosis and cell cycle arrest, whereas Erk1/2 reactivation with EGF promoted cell proliferation. Intriguingly, in vitro ATP supplementation partially restored Erk1/2 phosphorylation and promoted proliferation in PDAC cells with HSP60 knockdown and OXPHOS inhibition. These results suggest that mitochondrial ATP is an important sensor of Erk1/2 regulated apoptosis and the cell cycle in PDAC cells. Thus, our findings indicate for the first time that HSP60 may serve as a novel diagnostic target of human pancreatic cancer, and that inhibition of mitochondrial function using drugs such as metformin may be a beneficial therapeutic strategy targeting pancreatic cancer cells with aberrant function of the HSP60/OXPHOS/Erk1/2 phosphorylation axis.
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Affiliation(s)
- Chao Zhou
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Department of Clinical Laboratory, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Hongwei Sun
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chen Zheng
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jing Gao
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Qingzi Fu
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Nianqi Hu
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiaoli Shao
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yingying Zhou
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jingting Xiong
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Ke Nie
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Huaibin Zhou
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lijun Shen
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Hezhi Fang
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Jianxin Lyu
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China. .,Hangzhou Medical College, Hangzhou, Zhejiang, China.
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27
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Targeting of short TRPM8 isoforms induces 4TM-TRPM8-dependent apoptosis in prostate cancer cells. Oncotarget 2018; 7:29063-80. [PMID: 27074561 PMCID: PMC5045378 DOI: 10.18632/oncotarget.8666] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 03/29/2016] [Indexed: 11/25/2022] Open
Abstract
Since its cloning a decade ago, TRPM8 channel has emerged as a promising prognostic marker and a putative therapeutic target in prostate cancer (PCa). However, recent studies have brought to light the complexity of TRPM8 isoforms in PCa. Consequently, the respective role of each TRPM8 isoform needs to be deciphered prior to considering TRPM8 as an attractive therapeutic target. Full-length (6 transmembrane (TM)-domain) TRPM8 channel is overexpressed in early PCa and repressed in advanced prostate tumors whereas the localization of the truncated, 4TM-TRPM8 channel (4 transmembrane (TM)-domain), in the membranes of endoplasmic reticulum (ER) is independent of the pathogenic status of epithelial cells. In the same line, expression of non-channel cytoplasmic small TRPM8 isoforms (namely sM8) is conserved in cancer cells. In this study, we identify sM8s as putative regulator of PCa cell death. Indeed, suppression of sM8 isoforms was found to induce concomitantly ER stress, oxidative stress, p21 expression and apoptosis in human epithelial prostate cancer cells. We furthermore demonstrate that induction of such mechanisms required the activity of 4TM-TRPM8 channels at the ER-mitochondria junction. Our study thus suggests that targeting sM8 could be an appropriate strategy to fight prostate cancer.
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Khalaf-Nazzal R, Stouffer MA, Olaso R, Muresan L, Roumegous A, Lavilla V, Carpentier W, Moutkine I, Dumont S, Albaud B, Cagnard N, Roest Crollius H, Francis F. Early born neurons are abnormally positioned in the doublecortin knockout hippocampus. Hum Mol Genet 2017; 26:90-108. [PMID: 28007902 DOI: 10.1093/hmg/ddw370] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 10/24/2016] [Indexed: 01/29/2023] Open
Abstract
Human doublecortin (DCX) mutations are associated with severe brain malformations leading to aberrant neuron positioning (heterotopia), intellectual disability and epilepsy. The Dcx protein plays a key role in neuronal migration, and hippocampal pyramidal neurons in Dcx knockout (KO) mice are disorganized. The single CA3 pyramidal cell layer observed in wild type (WT) is present as two abnormal layers in the KO, and CA3 KO pyramidal neurons are more excitable than WT. Dcx KO mice also exhibit spontaneous epileptic activity originating in the hippocampus. It is unknown, however, how hyperexcitability arises and why two CA3 layers are observed.Transcriptome analyses were performed to search for perturbed postnatal gene expression, comparing Dcx KO CA3 pyramidal cell layers with WT. Gene expression changes common to both KO layers indicated mitochondria and Golgi apparatus anomalies, as well as increased cell stress. Intriguingly, gene expression analyses also suggested that the KO layers differ significantly from each other, particularly in terms of maturity. Layer-specific molecular markers and BrdU birthdating to mark the final positions of neurons born at distinct timepoints revealed inverted layering of the CA3 region in Dcx KO animals. Notably, many early-born 'outer boundary' neurons are located in an inner position in the Dcx KO CA3, superficial to other pyramidal neurons. This abnormal positioning likely affects cell morphology and connectivity, influencing network function. Dissecting this Dcx KO phenotype sheds light on coordinated developmental mechanisms of neuronal subpopulations, as well as gene expression patterns contributing to a bi-layered malformation associated with epilepsy.
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Affiliation(s)
- Reham Khalaf-Nazzal
- INSERM UMR-S 839, Paris.,Sorbonne Universités, Université Pierre et Marie Curie, Paris.,Institut du Fer à Moulin, Paris, France
| | - Melissa A Stouffer
- INSERM UMR-S 839, Paris.,Sorbonne Universités, Université Pierre et Marie Curie, Paris.,Institut du Fer à Moulin, Paris, France
| | - Robert Olaso
- Plateforme de Transcriptomique, Laboratoire de Recherche Translationnelle, CEA/DSV/IG-Centre National de Genotypage, 2 rue Gaston Crémieux, Evry, France
| | - Leila Muresan
- Ecole Normale Supérieure, Institut de Biologie de l'ENS, IBENS, Paris, France.,INSERM, U1024, Paris, France.,CNRS, UMR 8197, Paris, France
| | - Audrey Roumegous
- INSERM UMR-S 839, Paris.,Sorbonne Universités, Université Pierre et Marie Curie, Paris.,Institut du Fer à Moulin, Paris, France
| | - Virginie Lavilla
- Plateforme de Transcriptomique, Laboratoire de Recherche Translationnelle, CEA/DSV/IG-Centre National de Genotypage, 2 rue Gaston Crémieux, Evry, France
| | - Wassila Carpentier
- Plateforme post-génomique de la Pitié-Salpêtrière, Faculty of Medicine, Paris
| | - Imane Moutkine
- INSERM UMR-S 839, Paris.,Sorbonne Universités, Université Pierre et Marie Curie, Paris.,Institut du Fer à Moulin, Paris, France
| | - Sylvie Dumont
- Sorbonne Universités, UPMC Paris 06, UMS30 LUMIC, plateforme d'histomorphologie, St Antoine, Paris
| | - Benoit Albaud
- Plateforme Affymetrix, Institut Curie, Hospital St Louis, Paris
| | - Nicolas Cagnard
- Plateforme Bio-informatique Paris Descartes, Faculté de Necker, 156 rue de Vaugirard, Paris
| | - Hugues Roest Crollius
- Ecole Normale Supérieure, Institut de Biologie de l'ENS, IBENS, Paris, France.,INSERM, U1024, Paris, France.,CNRS, UMR 8197, Paris, France
| | - Fiona Francis
- INSERM UMR-S 839, Paris.,Sorbonne Universités, Université Pierre et Marie Curie, Paris.,Institut du Fer à Moulin, Paris, France
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29
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Trebicz-Geffen M, Shahi P, Nagaraja S, Vanunu S, Manor S, Avrahami A, Ankri S. Identification of S-Nitrosylated (SNO) Proteins in Entamoeba histolytica Adapted to Nitrosative Stress: Insights into the Role of SNO Actin and In vitro Virulence. Front Cell Infect Microbiol 2017; 7:192. [PMID: 28589096 PMCID: PMC5440460 DOI: 10.3389/fcimb.2017.00192] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 05/03/2017] [Indexed: 12/13/2022] Open
Abstract
We have recently reported that Entamoeba histolytica trophozoites can adapt to toxic levels of the nitric oxide (NO) donor, S-nitrosoglutathione (GSNO). Even if the consequences of this adaptation on the modulation of gene expression in NO-adapted trophozoites (NAT) have been previously explored, insight on S-nitrosylated (SNO) proteins in NAT is missing. Our study aims to fill this knowledge gap by performing a screening of SNO proteins in NAT. Employing SNO resin-assisted capture (RAC), we identified 242 putative SNO proteins with key functions in calcium binding, enzyme modulation, redox homeostasis, and actin cytoskeleton. Of the SNO proteins in NAT, proteins that are associated with actin family cytoskeleton protein are significantly enriched. Here we report that the formation of actin filaments (F-actin) is impaired in NAT. Consequently, the ability of NAT to ingest erythrocytes and their motility and their cytopathic activity are impaired. These phenotypes can be imitated by treating control parasite with cytochalasin D (CytD), a drug that binds to F-actin polymer and prevent polymerization of actin monomers. Removal of GSNO from the culture medium of NAT restored the sensitivity of the parasite to nitrosative stress (NS) and its ability to form F-actin formation and its virulence. These results establish the central role of NO in shaping the virulence of the parasite through its effect on F-actin formation and highlight the impressive ability of this parasite to adapt to NS.
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Affiliation(s)
- Meirav Trebicz-Geffen
- Department of Molecular Microbiology, Ruth and Bruce Rappaport Faculty of Medicine, TechnionHaifa, Israel
| | - Preeti Shahi
- Department of Molecular Microbiology, Ruth and Bruce Rappaport Faculty of Medicine, TechnionHaifa, Israel
| | - Shruti Nagaraja
- Department of Molecular Microbiology, Ruth and Bruce Rappaport Faculty of Medicine, TechnionHaifa, Israel
| | - Shai Vanunu
- Department of Molecular Microbiology, Ruth and Bruce Rappaport Faculty of Medicine, TechnionHaifa, Israel
| | - Shiran Manor
- Department of Molecular Microbiology, Ruth and Bruce Rappaport Faculty of Medicine, TechnionHaifa, Israel
| | - Amit Avrahami
- Ruth and Bruce Rappaport Faculty of Medicine, TechnionHaifa, Israel
| | - Serge Ankri
- Department of Molecular Microbiology, Ruth and Bruce Rappaport Faculty of Medicine, TechnionHaifa, Israel
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30
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Aluksanasuwan S, Sueksakit K, Fong-Ngern K, Thongboonkerd V. Role of HSP60 (HSPD1) in diabetes-induced renal tubular dysfunction: regulation of intracellular protein aggregation, ATP production, and oxidative stress. FASEB J 2017; 31:2157-2167. [PMID: 28196897 DOI: 10.1096/fj.201600910rr] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 01/23/2017] [Indexed: 12/28/2022]
Abstract
Because underlying mechanisms of diabetic nephropathy/tubulopathy remained poorly understood, we aimed to define a key protein involving in hyperglycemia-induced renal tubular dysfunction. All altered renal proteins identified from previous large-scale proteome studies were subjected to global protein network analysis, which revealed heat shock protein 60 (HSP60, also known as HSPD1) as the central node of protein-protein interactions. Functional validation was performed using small interfering RNA (siRNA) to knock down HSP60 (siHSP60). At 48 h after exposure to high glucose (HG) (25 mM), Madin-Darby canine kidney (MDCK) renal tubular cells transfected with controlled siRNA (siControl) had significantly increased level of HSP60 compared to normal glucose (NG) (5.5 mM), whereas siHSP60-transfected cells showed a dramatically decreased HSP60 level. siHSP60 modestly increased intracellular protein aggregates in both NG and HG conditions. Luciferin-luciferase assay showed that HG modestly increased intracellular ATP, and siHSP60 further enhanced such an increase. OxyBlot assay showed significantly increased level of oxidized proteins in HG-treated siControl-transfected cells, whereas siHSP60 caused marked increase of oxidized proteins under the NG condition. However, the siHSP60-induced accumulation of oxidized proteins was abolished by HG. In summary, our data demonstrated that HSP60 plays roles in regulation of intracellular protein aggregation, ATP production, and oxidative stress in renal tubular cells. Its involvement in HG-induced tubular cell dysfunction was most likely via regulation of intracellular ATP production.-Aluksanasuwan, S., Sueksakit, K., Fong-ngern, K., Thongboonkerd, V. Role of HSP60 (HSPD1) in diabetes-induced renal tubular dysfunction: regulation of intracellular protein aggregation, ATP production, and oxidative stress.
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Affiliation(s)
- Siripat Aluksanasuwan
- Medical Proteomics Unit, Office for Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.,Center for Research in Complex Systems Science, Mahidol University, Bangkok, Thailand
| | - Kanyarat Sueksakit
- Medical Proteomics Unit, Office for Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.,Center for Research in Complex Systems Science, Mahidol University, Bangkok, Thailand
| | - Kedsarin Fong-Ngern
- Medical Proteomics Unit, Office for Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.,Center for Research in Complex Systems Science, Mahidol University, Bangkok, Thailand
| | - Visith Thongboonkerd
- Medical Proteomics Unit, Office for Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand; .,Center for Research in Complex Systems Science, Mahidol University, Bangkok, Thailand
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31
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Li Y, Lai S, Wang R, Zhao Y, Qin H, Jiang L, Li N, Fu Q, Li C. RNA-Seq Analysis of the Antioxidant Status and Immune Response of Portunus trituberculatus Following Aerial Exposure. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2017; 19:89-101. [PMID: 28138936 DOI: 10.1007/s10126-017-9731-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 01/09/2017] [Indexed: 06/06/2023]
Abstract
Desiccation tolerance has been long considered as an important trait for the life survival under acute environmental stress. One of the biggest problems for modern commercial crab farming is desiccation during transportation; high mortality could occur following the aerial exposure. In this regard, here, we utilized RNA-seq-based transcriptome profiling to characterize the molecular responses of swimming crab in response to aerial exposure. In present study, following aerial exposure, the gill samples were sequenced at 0, 6, 12, and 18 h. And the sequenced reads were assembled into 274,594 contigs, with average length of 735.59 bp and N50 size of 1262 bp. After differential expression analysis, a total of 1572 genes were captured significantly differentially expressed, and were categorized into antioxidant/oxidative stress response, chaperones/heat shock proteins, immune alteration, cell proliferation/apoptosis, and cytoskeletal. Our analysis revealed the dramatic tissue oxidant stress and the alteration of the tissue epithelial integrity, especially many genes that have not been reported in crab species. With the limited functional information in crab, further studies are needed and underway in our lab to further characterize the key cellular actors governing the crab tolerance to aerial exposure. Taken together, our results provide molecular resources for further identification of key genes for desiccation tolerance, and to facilitate the molecular selection and breeding of desiccation tolerant strain and family.
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Affiliation(s)
- Yuquan Li
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Shoumin Lai
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Renjie Wang
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Yuchao Zhao
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Hao Qin
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Lingxu Jiang
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Na Li
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Qiang Fu
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, 200062, China
| | - Chao Li
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China.
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32
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Bie AS, Fernandez-Guerra P, Birkler RID, Nisemblat S, Pelnena D, Lu X, Deignan JL, Lee H, Dorrani N, Corydon TJ, Palmfeldt J, Bivina L, Azem A, Herman K, Bross P. Effects of a Mutation in the HSPE1 Gene Encoding the Mitochondrial Co-chaperonin HSP10 and Its Potential Association with a Neurological and Developmental Disorder. Front Mol Biosci 2016; 3:65. [PMID: 27774450 PMCID: PMC5053987 DOI: 10.3389/fmolb.2016.00065] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 09/21/2016] [Indexed: 11/13/2022] Open
Abstract
We here report molecular investigations of a missense mutation in the HSPE1 gene encoding the HSP10 subunit of the HSP60/ HSP10 chaperonin complex that assists protein folding in the mitochondrial matrix. The mutation was identified in an infant who came to clinical attention due to infantile spasms at 3 months of age. Clinical exome sequencing revealed heterozygosity for a HSPE1 NM_002157.2:c.217C>T de novo mutation causing replacement of leucine with phenylalanine at position 73 of the HSP10 protein. This variation has never been observed in public exome sequencing databases or the literature. To evaluate whether the mutation may be disease-associated we investigated its effects by in vitro and ex vivo studies. Our in vitro studies indicated that the purified mutant protein was functional, yet its thermal stability, spontaneous refolding propensity, and resistance to proteolytic treatment were profoundly impaired. Mass spectrometric analysis of patient fibroblasts revealed barely detectable levels of HSP10-p.Leu73Phe protein resulting in an almost 2-fold decrease of the ratio of HSP10 to HSP60 subunits. Amounts of the mitochondrial superoxide dismutase SOD2, a protein whose folding is known to strongly depend on the HSP60/HSP10 complex, were decreased to approximately 20% in patient fibroblasts in spite of unchanged SOD2 transcript levels. As a likely consequence, mitochondrial superoxide levels were increased about 2-fold. Although, we cannot exclude other causative or contributing factors, our experimental data support the notion that the HSP10-p.Leu73Phe mutation could be the cause or a strong contributing factor for the disorder in the described patient.
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Affiliation(s)
- Anne S Bie
- Research Unit for Molecular Medicine, Aarhus University and Aarhus University Hospital Aarhus, Denmark
| | - Paula Fernandez-Guerra
- Research Unit for Molecular Medicine, Aarhus University and Aarhus University Hospital Aarhus, Denmark
| | - Rune I D Birkler
- Research Unit for Molecular Medicine, Aarhus University and Aarhus University Hospital Aarhus, Denmark
| | - Shahar Nisemblat
- Department of Biochemistry & Molecular Biology, Tel Aviv University Tel Aviv, Israel
| | - Dita Pelnena
- Research Unit for Molecular Medicine, Aarhus University and Aarhus University Hospital Aarhus, Denmark
| | - Xinping Lu
- Department of Biochemistry & Molecular Biology, Tel Aviv University Tel Aviv, Israel
| | - Joshua L Deignan
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at University of California, Los Angeles Los Angeles, CA, USA
| | - Hane Lee
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at University of California, Los Angeles Los Angeles, CA, USA
| | - Naghmeh Dorrani
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at University of California, Los AngelesLos Angeles, CA, USA; Department of Pediatrics, David Geffen School of Medicine at University of California, Los AngelesLos Angeles, CA, USA
| | | | - Johan Palmfeldt
- Research Unit for Molecular Medicine, Aarhus University and Aarhus University Hospital Aarhus, Denmark
| | - Liga Bivina
- Division of Genomic Medicine, Department of Pediatrics, UC Davis Health System Sacramento, CA, USA
| | - Abdussalam Azem
- Department of Biochemistry & Molecular Biology, Tel Aviv University Tel Aviv, Israel
| | - Kristin Herman
- Division of Genomic Medicine, Department of Pediatrics, UC Davis Health System Sacramento, CA, USA
| | - Peter Bross
- Research Unit for Molecular Medicine, Aarhus University and Aarhus University Hospital Aarhus, Denmark
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33
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Bross P, Fernandez-Guerra P. Disease-Associated Mutations in the HSPD1 Gene Encoding the Large Subunit of the Mitochondrial HSP60/HSP10 Chaperonin Complex. Front Mol Biosci 2016; 3:49. [PMID: 27630992 PMCID: PMC5006179 DOI: 10.3389/fmolb.2016.00049] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 08/22/2016] [Indexed: 01/01/2023] Open
Abstract
Heat shock protein 60 (HSP60) forms together with heat shock protein 10 (HSP10) double-barrel chaperonin complexes that are essential for folding to the native state of proteins in the mitochondrial matrix space. Two extremely rare monogenic disorders have been described that are caused by missense mutations in the HSPD1 gene that encodes the HSP60 subunit of the HSP60/HSP10 chaperonin complex. Investigations of the molecular mechanisms underlying these disorders have revealed that different degrees of reduced HSP60 function produce distinct neurological phenotypes. While mutations with deleterious or strong dominant negative effects are not compatible with life, HSPD1 gene variations found in the human population impair HSP60 function and depending on the mechanism and degree of HSP60 dys- and mal-function cause different phenotypes. We here summarize the knowledge on the effects of disturbances of the function of the HSP60/HSP10 chaperonin complex by disease-associated mutations.
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Affiliation(s)
- Peter Bross
- Research Unit for Molecular Medicine, Department of Molecular Medicine, Aarhus University and Aarhus University Hospital Aarhus, Denmark
| | - Paula Fernandez-Guerra
- Research Unit for Molecular Medicine, Department of Molecular Medicine, Aarhus University and Aarhus University Hospital Aarhus, Denmark
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34
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Proteomics of human mitochondria. Mitochondrion 2016; 33:2-14. [PMID: 27444749 DOI: 10.1016/j.mito.2016.07.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 07/13/2016] [Accepted: 07/18/2016] [Indexed: 12/25/2022]
Abstract
Proteomics have passed through a tremendous development in the recent years by the development of ever more sensitive, fast and precise mass spectrometry methods. The dramatically increased research in the biology of mitochondria and their prominent involvement in all kinds of diseases and ageing has benefitted from mitochondrial proteomics. We here review substantial findings and progress of proteomic analyses of human cells and tissues in the recent past. One challenge for investigations of human samples is the ethically and medically founded limited access to human material. The increased sensitivity of mass spectrometry technology aids in lowering this hurdle and new approaches like generation of induced pluripotent cells from somatic cells allow to produce patient-specific cellular disease models with great potential. We describe which human sample types are accessible, review the status of the catalog of human mitochondrial proteins and discuss proteins with dual localization in mitochondria and other cellular compartments. We describe the status and developments of pertinent mass spectrometric strategies, and the use of databases and bioinformatics. Using selected illustrative examples, we draw a picture of the role of proteomic analyses for the many disease contexts from inherited disorders caused by mutation in mitochondrial proteins to complex diseases like cancer, type 2 diabetes and neurodegenerative diseases. Finally, we speculate on the future role of proteomics in research on human mitochondria and pinpoint fields where the evolving technologies will be exploited.
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35
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Lindahl PA, Moore MJ. Labile Low-Molecular-Mass Metal Complexes in Mitochondria: Trials and Tribulations of a Burgeoning Field. Biochemistry 2016; 55:4140-53. [PMID: 27433847 DOI: 10.1021/acs.biochem.6b00216] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Iron, copper, zinc, manganese, cobalt, and molybdenum play important roles in mitochondrial biochemistry, serving to help catalyze reactions in numerous metalloenzymes. These metals are also found in labile "pools" within mitochondria. Although the composition and cellular function of these pools are largely unknown, they are thought to be comprised of nonproteinaceous low-molecular-mass (LMM) metal complexes. Many problems must be solved before these pools can be fully defined, especially problems stemming from the lability of such complexes. This lability arises from inherently weak coordinate bonds between ligands and metals. This is an advantage for catalysis and trafficking, but it makes characterization difficult. The most popular strategy for investigating such pools is to detect them using chelator probes with fluorescent properties that change upon metal coordination. Characterization is limited because of the inevitable destruction of the complexes during their detection. Moreover, probes likely react with more than one type of metal complex, confusing analyses. An alternative approach is to use liquid chromatography (LC) coupled with inductively coupled plasma mass spectrometry (ICP-MS). With help from a previous lab member, the authors recently developed an LC-ICP-MS approach to analyze LMM extracts from yeast and mammalian mitochondria. They detected several metal complexes, including Fe580, Fe1100, Fe1500, Cu5000, Zn1200, Zn1500, Mn1100, Mn2000, Co1200, Co1500, and Mo780 (numbers refer to approximate masses in daltons). Many of these may be used to metalate apo-metalloproteins as they fold inside the organelle. The LC-based approach also has challenges, e.g., in distinguishing artifactual metal complexes from endogenous ones, due to the fact that cells must be disrupted to form extracts before they are passed through chromatography columns prior to analysis. Ultimately, both approaches will be needed to characterize these intriguing complexes and to elucidate their roles in mitochondrial biochemistry.
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Affiliation(s)
- Paul A Lindahl
- Department of Chemistry, Texas A&M University , College Station, Texas 77843-3255, United States.,Department of Biochemistry and Biophysics, Texas A&M University , College Station, Texas 77843-2128, United States
| | - Michael J Moore
- Department of Chemistry, Texas A&M University , College Station, Texas 77843-3255, United States
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36
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Coignion C, Banneau G, Goizet C. Paraplegie spastiche ereditarie. Neurologia 2016. [DOI: 10.1016/s1634-7072(16)77572-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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37
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Shi J, Fu M, Zhao C, Zhou F, Yang Q, Qiu L. Characterization and function analysis of Hsp60 and Hsp10 under different acute stresses in black tiger shrimp, Penaeus monodon. Cell Stress Chaperones 2016; 21:295-312. [PMID: 26637414 PMCID: PMC4786529 DOI: 10.1007/s12192-015-0660-6] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 11/05/2015] [Accepted: 11/15/2015] [Indexed: 12/15/2022] Open
Abstract
Heat shock proteins (Hsps) are a class of highly conserved proteins produced in virtually all living organisms from bacteria to humans. Hsp60 and Hsp10, the most important mitochondrial chaperones, participate in environmental stress responses. In this study, the full-length complementary DNAs (cDNAs) of Hsp60 (PmHsp60) and Hsp10 (PmHsp10) were cloned from Penaeus monodon. Sequence analysis showed that PmHsp60 and PmHsp10 encoded polypeptides of 578 and 102 amino acids, respectively. The expression profiles of PmHsp60 and PmHsp10 were detected in the gills and hepatopancreas of the shrimps under pH challenge, osmotic stress, and heavy metal exposure, and results suggested that PmHsp60 and PmHsp10 were involved in the responses to these stimuli. ATPase and chaperone activity assay indicated that PmHsp60 could slow down protein denaturation and that Hsp60/Hsp10 may be combined to produce a chaperone complex with effective chaperone and ATPase activities. Overall, this study provides useful information to help further understand the functional mechanisms of the environmental stress responses of Hsp60 and Hsp10 in shrimp.
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Affiliation(s)
- Jinxuan Shi
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, China
- College of Aqua-life Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Mingjun Fu
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, China
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangzhou, 510300, China
| | - Chao Zhao
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, China
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangzhou, 510300, China
| | - Falin Zhou
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, China
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangzhou, 510300, China
| | - Qibin Yang
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, China
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangzhou, 510300, China
- Tropical Aquaculture Research and Development Center of South China Sea Fisheries Research Institute, Sanya, 572000, China
| | - Lihua Qiu
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, China.
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangzhou, 510300, China.
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38
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Alcoholic Liver Disease: A Mouse Model Reveals Protection by Lactobacillus fermentum. Clin Transl Gastroenterol 2016; 7:e138. [PMID: 26795070 PMCID: PMC4737872 DOI: 10.1038/ctg.2015.66] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 12/04/2015] [Indexed: 02/08/2023] Open
Abstract
OBJECTIVES Alcoholism is one of the most devastating diseases with high incidence, but knowledge of its pathology and treatment is still plagued with gaps mostly because of the inherent limitations of research with patients. We developed an animal model for studying liver histopathology, Hsp (heat-shock protein)-chaperones involvement, and response to treatment. METHODS The system was standardized using mice to which ethanol was orally administered alone or in combination with Lactobacillus fermentum following a precise schedule over time and applying, at predetermined intervals, a battery of techniques (histology, immunohistochemistry, western blotting, real-time PCR, immunoprecipitation, 3-nitrotyrosine labeling) to assess liver pathology (e.g., steatosis, fibrosis), and Hsp60 and iNOS (inducible form of nitric oxide synthase) gene expression and protein levels, and post-translational modifications. RESULTS Typical ethanol-induced liver pathology occurred and the effect of the probiotic could be reliably monitored. Steatosis score, iNOS levels, and nitrated proteins (e.g., Hsp60) decreased after probiotic intake. CONCLUSIONS We describe a mouse model useful for studying liver disease induced by chronic ethanol intake and for testing pertinent therapeutic agents, e.g., probiotics. We tested L. fermentum, which reduced considerably ethanol-induced tissue damage and deleterious post-translational modifications of the chaperone Hsp60. The model is available to test other agents and probiotics with therapeutic potential in alcoholic liver disease.
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39
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Stachowicz A, Głombik K, Olszanecki R, Basta-Kaim A, Suski M, Lasoń W, Korbut R. The impact of mitochondrial aldehyde dehydrogenase (ALDH2) activation by Alda-1 on the behavioral and biochemical disturbances in animal model of depression. Brain Behav Immun 2016; 51:144-153. [PMID: 26254233 DOI: 10.1016/j.bbi.2015.08.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Revised: 07/22/2015] [Accepted: 08/03/2015] [Indexed: 01/05/2023] Open
Abstract
The etiology of depression remains still unclear. Recently, it has been proposed, that mitochondrial dysfunction may be associated with development of mood disorders, such as depression, bipolar disorder and anxiety disorders. Mitochondrial aldehyde dehydrogenase (ALDH2), an enzyme responsible for the detoxification of reactive aldehydes, is considered to exert protective function in mitochondria. We investigated the influence of Alda-1, a small-molecule activator of ALDH2, on depressive- and anxiety-like behaviors in an animal model of depression - the prenatally stressed rats - using behavioral, molecular and proteomic methods. Prolonged Alda-1 administration significantly increased the climbing time, tended to reduce the immobility time and increased the swimming time of the prenatally stressed rats in the forced swim test. Moreover, treatment of prenatally stressed rats with Alda-1 significantly increased number of entries into the open arms of the maze and the time spent therein, as assessed by elevated plus-maze test. Such actions were associated with reduction of plasma 4-HNE-protein content, decrease of TNF-α mRNA and increase of PGC-1α (regulator of mitochondrial biogenesis) mRNA level in the frontal cortex and hippocampus of the prenatally stressed rats as well as with normalization of peripheral immune parameters and significant changes in expression of 6 and 4 proteins related to mitochondrial functions in the frontal cortex and hippocampus, respectively. Collectively, ALDH2 activation by Alda-1 led to a significant attenuation of depressive- and anxiety-like behaviors in the prenatally stressed rats. The pattern of changes suggested mitoprotective effect of Alda-1, however the exact functional consequences of the revealed alterations require further investigation.
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Affiliation(s)
| | - Katarzyna Głombik
- Department of Experimental Neuroendocrinology, Institute of Pharmacology, Polish Academy of Science, 31-343 Krakow, Poland
| | | | - Agnieszka Basta-Kaim
- Department of Experimental Neuroendocrinology, Institute of Pharmacology, Polish Academy of Science, 31-343 Krakow, Poland
| | - Maciej Suski
- Jagiellonian University Medical College, 31-531 Krakow, Poland
| | - Władysław Lasoń
- Department of Experimental Neuroendocrinology, Institute of Pharmacology, Polish Academy of Science, 31-343 Krakow, Poland
| | - Ryszard Korbut
- Jagiellonian University Medical College, 31-531 Krakow, Poland
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40
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Hunter GJ, Trinh CH, Bonetta R, Stewart EE, Cabelli DE, Hunter T. The structure of the Caenorhabditis elegans manganese superoxide dismutase MnSOD-3-azide complex. Protein Sci 2015; 24:1777-88. [PMID: 26257399 PMCID: PMC4622211 DOI: 10.1002/pro.2768] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 08/03/2015] [Indexed: 01/18/2023]
Abstract
C. elegans MnSOD-3 has been implicated in the longevity pathway and its mechanism of catalysis is relevant to the aging process and carcinogenesis. The structures of MnSOD-3 provide unique crystallographic evidence of a dynamic region of the tetrameric interface (residues 41-54). We have determined the structure of the MnSOD-3-azide complex to 1.77-Å resolution. Analysis of this complex shows that the substrate analog, azide, binds end-on to the manganese center as a sixth ligand and that it ligates directly to a third and new solvent molecule also positioned within interacting distance to the His30 and Tyr34 residues of the substrate access funnel. This is the first structure of a eukaryotic MnSOD-azide complex that demonstrates the extended, uninterrupted hydrogen-bonded network that forms a proton relay incorporating three outer sphere solvent molecules, the substrate analog, the gateway residues, Gln142, and the solvent ligand. This configuration supports the formation and release of the hydrogen peroxide product in agreement with the 5-6-5 catalytic mechanism for MnSOD. The high product dissociation constant k4 of MnSOD-3 reflects low product inhibition making this enzyme efficient even at high levels of superoxide.
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Affiliation(s)
- Gary J Hunter
- Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of MaltaMsida, Malta
| | - Chi H Trinh
- Astbury Centre for Structural Molecular Biology, Institute of Molecular and Cellular Biology, University of LeedsLeeds, United Kingdom
| | - Rosalin Bonetta
- Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of MaltaMsida, Malta
| | - Emma E Stewart
- Astbury Centre for Structural Molecular Biology, Institute of Molecular and Cellular Biology, University of LeedsLeeds, United Kingdom
| | - Diane E Cabelli
- Chemistry Department, Brookhaven National LaboratoryUpton, New York
| | - Therese Hunter
- Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of MaltaMsida, Malta
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Deng J, Yang M, Chen Y, Chen X, Liu J, Sun S, Cheng H, Li Y, Bigio EH, Mesulam M, Xu Q, Du S, Fushimi K, Zhu L, Wu JY. FUS Interacts with HSP60 to Promote Mitochondrial Damage. PLoS Genet 2015; 11:e1005357. [PMID: 26335776 PMCID: PMC4559378 DOI: 10.1371/journal.pgen.1005357] [Citation(s) in RCA: 132] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 06/12/2015] [Indexed: 12/13/2022] Open
Abstract
FUS-proteinopathies, a group of heterogeneous disorders including ALS-FUS and FTLD-FUS, are characterized by the formation of inclusion bodies containing the nuclear protein FUS in the affected patients. However, the underlying molecular and cellular defects remain unclear. Here we provide evidence for mitochondrial localization of FUS and its induction of mitochondrial damage. Remarkably, FTLD-FUS brain samples show increased FUS expression and mitochondrial defects. Biochemical and genetic data demonstrate that FUS interacts with a mitochondrial chaperonin, HSP60, and that FUS translocation to mitochondria is, at least in part, mediated by HSP60. Down-regulating HSP60 reduces mitochondrially localized FUS and partially rescues mitochondrial defects and neurodegenerative phenotypes caused by FUS expression in transgenic flies. This is the first report of direct mitochondrial targeting by a nuclear protein associated with neurodegeneration, suggesting that mitochondrial impairment may represent a critical event in different forms of FUS-proteinopathies and a common pathological feature for both ALS-FUS and FTLD-FUS. Our study offers a potential explanation for the highly heterogeneous nature and complex genetic presentation of different forms of FUS-proteinopathies. Our data also suggest that mitochondrial damage may be a target in future development of diagnostic and therapeutic tools for FUS-proteinopathies, a group of devastating neurodegenerative diseases. Amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration (FTLD) are two groups of common and devastating neurodegenerative diseases, characterized by losses of selected groups of neurons. Mutations in the FUS gene have been associated with ALS, whereas inclusion bodies containing the FUS protein have been discovered in both ALS and FTLD patients. However, the underlying pathogenic mechanisms of FUS in these diseases remain unclear. Here, we demonstrate that wild-type or ALS-associated mutant FUS can interact with mitochondrial chaperonin HSP60 and that HSP60 mediates FUS localization to mitochondria, leading to mitochondrial damage. Mitochondrial impairment may be an early event in FUS proteinopathies and represent a potential therapeutic target for treating these fatal diseases.
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Affiliation(s)
- Jianwen Deng
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Mengxue Yang
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
- Department of Neurology, Center for Genetic Medicine, Lurie Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Yanbo Chen
- Department of Neurology, Center for Genetic Medicine, Lurie Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Science and Peking Union Medical College, Tsinghua University, Beijing, China
| | - Xiaoping Chen
- Department of Neurology, Center for Genetic Medicine, Lurie Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Jianghong Liu
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Shufeng Sun
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Haipeng Cheng
- Department of Neurology, Center for Genetic Medicine, Lurie Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Yang Li
- Department of Neurology, Center for Genetic Medicine, Lurie Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
- School of Electronic Science and Engineering, Nanjing University, Nanjing, China
| | - Eileen H. Bigio
- Department of Pathology & Neurology, The Cognitive Neurology& Alzheimer's Disease Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Marsel Mesulam
- Department of Pathology & Neurology, The Cognitive Neurology& Alzheimer's Disease Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Qi Xu
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Science and Peking Union Medical College, Tsinghua University, Beijing, China
| | - Sidan Du
- School of Electronic Science and Engineering, Nanjing University, Nanjing, China
| | - Kazuo Fushimi
- Department of Neurology, Center for Genetic Medicine, Lurie Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Li Zhu
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- * E-mail: (LZ); (JYW)
| | - Jane Y. Wu
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- Department of Neurology, Center for Genetic Medicine, Lurie Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
- * E-mail: (LZ); (JYW)
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Sandström von Tobel J, Zoia D, Althaus J, Antinori P, Mermoud J, Pak HS, Scherl A, Monnet-Tschudi F. Immediate and delayed effects of subchronic Paraquat exposure during an early differentiation stage in 3D-rat brain cell cultures. Toxicol Lett 2014; 230:188-97. [DOI: 10.1016/j.toxlet.2014.02.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 01/30/2014] [Accepted: 02/02/2014] [Indexed: 11/28/2022]
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43
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Characterization of adipocyte stress response pathways during hibernation in thirteen-lined ground squirrels. Mol Cell Biochem 2014; 393:271-82. [DOI: 10.1007/s11010-014-2070-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 04/12/2014] [Indexed: 12/18/2022]
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