1
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Trotta AM, Tomassi S, Di Maiolo G, Ieranò C, Vetrei C, D'Alterio C, Merlino F, Messere A, D'Aniello A, Del Bene A, Mazzarella V, Roggia M, Natale B, Cutolo R, Campagna E, Mottola S, Russo R, Chambery A, Benedetti R, Altucci L, Cosconati S, Scala S, Di Maro S. Disulfide bond replacement with non-reducible side chain to tail macrolactamization for the development of potent and selective CXCR4 peptide antagonists endowed with flanking binding sites. Eur J Med Chem 2024; 276:116669. [PMID: 39053189 DOI: 10.1016/j.ejmech.2024.116669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 07/01/2024] [Accepted: 07/08/2024] [Indexed: 07/27/2024]
Abstract
The present study describes a small library of peptides derived from a potent and selective CXCR4 antagonist (3), wherein the native disulfide bond is replaced using a side-chain to tail macrolactamization technique to vary ring size and amino acid composition. The peptides were preliminary assessed for their ability to interfere with the interaction between the receptor and anti-CXCR4 PE-conjugated antibody clone 12G5. Two promising candidates (13 and 17) were identified and further evaluated in a125I-CXCL12 competition binding assay, exhibiting IC50 in the low-nanomolar range. Furthermore, both candidates displayed high selectivity towards CXCR4 with respect to the cognate receptor CXCR7, ability to block CXCL12-dependent cancer cell migration, and receptor internalization, albeit at a higher concentration compared to 3. Molecular modeling studies on 13 and 17 produced a theoretical model that may serve as a guide for future modifications, aiding in the development of analogs with improved affinity. Finally, the study provides valuable insights into developing therapeutic agents targeting CXCR4-mediated processes, demonstrating the adaptability of our lead peptide 3 to alternative cyclization approaches and offering prospects for comprehensive investigations into the receptor region's interaction with its C-terminal region.
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Affiliation(s)
- Anna Maria Trotta
- Microenvironment Molecular Targets, Istituto Nazionale Tumori-IRCCS-Fondazione "G. Pascale", 80131 Naples, Italy
| | - Stefano Tomassi
- Department of Pharmacy, University of Naples "Federico II", 80131, Naples, Italy
| | - Gaetana Di Maiolo
- Microenvironment Molecular Targets, Istituto Nazionale Tumori-IRCCS-Fondazione "G. Pascale", 80131 Naples, Italy
| | - Caterina Ieranò
- Microenvironment Molecular Targets, Istituto Nazionale Tumori-IRCCS-Fondazione "G. Pascale", 80131 Naples, Italy
| | - Cinzia Vetrei
- Microenvironment Molecular Targets, Istituto Nazionale Tumori-IRCCS-Fondazione "G. Pascale", 80131 Naples, Italy
| | - Crescenzo D'Alterio
- Microenvironment Molecular Targets, Istituto Nazionale Tumori-IRCCS-Fondazione "G. Pascale", 80131 Naples, Italy
| | - Francesco Merlino
- Department of Pharmacy, University of Naples "Federico II", 80131, Naples, Italy
| | - Anna Messere
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", 81100, Caserta, Italy
| | - Antonia D'Aniello
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", 81100, Caserta, Italy
| | - Alessandra Del Bene
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", 81100, Caserta, Italy
| | - Vincenzo Mazzarella
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", 81100, Caserta, Italy
| | - Michele Roggia
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", 81100, Caserta, Italy
| | - Benito Natale
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", 81100, Caserta, Italy
| | - Roberto Cutolo
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", 81100, Caserta, Italy
| | - Erica Campagna
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", 81100, Caserta, Italy
| | - Salvatore Mottola
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", 81100, Caserta, Italy
| | - Rosita Russo
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", 81100, Caserta, Italy
| | - Angela Chambery
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", 81100, Caserta, Italy
| | - Rosaria Benedetti
- Department of Precision Medicine, University of Campania ''Luigi Vanvitelli'', Vico L. De Crecchio 7, 80138, Naples, Italy; Program of Medical Epigenetics, Vanvitelli Hospital, Naples, Italy
| | - Lucia Altucci
- Department of Precision Medicine, University of Campania ''Luigi Vanvitelli'', Vico L. De Crecchio 7, 80138, Naples, Italy; Program of Medical Epigenetics, Vanvitelli Hospital, Naples, Italy; Institute of Endocrinology and Oncology "Gaetano Salvatore" (IEOS), 80131, Naples, Italy; Biogem Institute of Molecular and Genetic Biology, 83031, Ariano Irpino, Italy
| | - Sandro Cosconati
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", 81100, Caserta, Italy.
| | - Stefania Scala
- Microenvironment Molecular Targets, Istituto Nazionale Tumori-IRCCS-Fondazione "G. Pascale", 80131 Naples, Italy.
| | - Salvatore Di Maro
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", 81100, Caserta, Italy.
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2
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Trotta AM, Mazzarella V, Roggia M, D'Aniello A, Del Bene A, Vetrei C, Di Maiolo G, Campagna E, Natale B, Rea G, Santagata S, D'Alterio C, Cutolo R, Mottola S, Merlino F, Benedetti R, Altucci L, Messere A, Cosconati S, Tomassi S, Scala S, Di Maro S. Comprehensive structural investigation of a potent and selective CXCR4 antagonist via crosslink modification. Eur J Med Chem 2024; 279:116911. [PMID: 39348763 DOI: 10.1016/j.ejmech.2024.116911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2024] [Revised: 09/23/2024] [Accepted: 09/23/2024] [Indexed: 10/02/2024]
Abstract
Macrocyclization presents a valuable strategy for enhancing the pharmacokinetic and pharmacodynamic profiles of short bioactive peptides. The exploration of various macrocyclic characteristics, such as crosslinking tethers, ring size, and orientation, is generally conducted during the early stages of development. Herein, starting from a potent and selective C-X-C chemokine receptor 4 (CXCR4) cyclic heptapeptide antagonist mimicking the N-terminal region of CXCL12, we demonstrated that the disulfide bridge could be successfully replaced with a side-chain to side-chain lactam bond, which is commonly not enlisted among the conventional disulfide mimetics. An extensive investigation was carried out to explore the chemical space of the resulting peptides, including macrocyclization width, stereochemical configuration, and lactam orientation, all of which were correlated with biochemical activity. We identified a novel heptapeptide that fully replicates the pharmacological profile of the parent peptide on CXCR4, including its potency, selectivity, and antagonistic activity, while demonstrating enhanced stability in a reductive environment. At this stage, computational studies were instructed to shed light on how the lactam cyclization features influenced the overall structure of 21 and, in turn, its ability to interact with the receptor. We envisage that these findings can give new momentum to the use of lactam cyclization as a disulfide bond mimetic and contribute to the enhancement of the repertoire for peptide-based drug development, thereby paving the way for novel avenues in therapeutic innovation.
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Affiliation(s)
- Anna Maria Trotta
- Microenvironment Molecular Targets, Istituto Nazionale per lo Studio e la Cura dei Tumori-IRCCS-Fondazione "G. Pascale", 80131, Naples, Italy
| | - Vincenzo Mazzarella
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", Via A. Vivaldi, 43, 81100, Caserta, Italy
| | - Michele Roggia
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", Via A. Vivaldi, 43, 81100, Caserta, Italy
| | - Antonia D'Aniello
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", Via A. Vivaldi, 43, 81100, Caserta, Italy
| | - Alessandra Del Bene
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", Via A. Vivaldi, 43, 81100, Caserta, Italy
| | - Cinzia Vetrei
- Microenvironment Molecular Targets, Istituto Nazionale per lo Studio e la Cura dei Tumori-IRCCS-Fondazione "G. Pascale", 80131, Naples, Italy
| | - Gaetana Di Maiolo
- Microenvironment Molecular Targets, Istituto Nazionale per lo Studio e la Cura dei Tumori-IRCCS-Fondazione "G. Pascale", 80131, Naples, Italy
| | - Erica Campagna
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", Via A. Vivaldi, 43, 81100, Caserta, Italy
| | - Benito Natale
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", Via A. Vivaldi, 43, 81100, Caserta, Italy
| | - Giuseppina Rea
- Microenvironment Molecular Targets, Istituto Nazionale per lo Studio e la Cura dei Tumori-IRCCS-Fondazione "G. Pascale", 80131, Naples, Italy
| | - Sara Santagata
- Microenvironment Molecular Targets, Istituto Nazionale per lo Studio e la Cura dei Tumori-IRCCS-Fondazione "G. Pascale", 80131, Naples, Italy
| | - Crescenzo D'Alterio
- Microenvironment Molecular Targets, Istituto Nazionale per lo Studio e la Cura dei Tumori-IRCCS-Fondazione "G. Pascale", 80131, Naples, Italy
| | - Roberto Cutolo
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", Via A. Vivaldi, 43, 81100, Caserta, Italy
| | - Salvatore Mottola
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", Via A. Vivaldi, 43, 81100, Caserta, Italy
| | - Francesco Merlino
- Department of Pharmacy, University of Naples "Federico II", 80131, Naples, Italy
| | - Rosaria Benedetti
- Department of Precision Medicine, University of Campania ''Luigi Vanvitelli'', Vico L. De Crecchio 7, 80138, Naples, Italy; Program of Medical Epigenetics, Vanvitelli Hospital, Naples, Italy
| | - Lucia Altucci
- Department of Precision Medicine, University of Campania ''Luigi Vanvitelli'', Vico L. De Crecchio 7, 80138, Naples, Italy; Program of Medical Epigenetics, Vanvitelli Hospital, Naples, Italy; Institute of Endocrinology and Oncology "Gaetano Salvatore" (IEOS), 80131, Naples, Italy; Biogem Institute of Molecular and Genetic Biology, 83031, Ariano Irpino, Italy
| | - Anna Messere
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", Via A. Vivaldi, 43, 81100, Caserta, Italy
| | - Sandro Cosconati
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", Via A. Vivaldi, 43, 81100, Caserta, Italy
| | - Stefano Tomassi
- Department of Life Science, Health, and Health Professions, LINK Campus University, Via del Casale di San Pio V, 44, 00165, Rome, Italy.
| | - Stefania Scala
- Microenvironment Molecular Targets, Istituto Nazionale per lo Studio e la Cura dei Tumori-IRCCS-Fondazione "G. Pascale", 80131, Naples, Italy.
| | - Salvatore Di Maro
- Department of Environmental, Biological and Pharmaceutical Science and Technology, University of Campania "Luigi Vanvitelli", Via A. Vivaldi, 43, 81100, Caserta, Italy.
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3
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Zhu YY, Zhang Q, Jia YC, Hou MJ, Zhu BT. Protein disulfide isomerase plays a crucial role in mediating chemically-induced, glutathione depletion-associated hepatocyte injury in vitro and in vivo. Cell Commun Signal 2024; 22:431. [PMID: 39243059 PMCID: PMC11378433 DOI: 10.1186/s12964-024-01798-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 08/18/2024] [Indexed: 09/09/2024] Open
Abstract
Recently we have shown that protein disulfide isomerase (PDI or PDIA1) is involved in mediating chemically-induced, glutathione (GSH) depletion-associated ferroptotic cell death through NOS activation (dimerization) and NO accumulation. The present study aims to determine the role of PDI in mediating chemically-induced hepatocyte injury in vitro and in vivo and whether PDI inhibitors can effectively protect against chemically-induced hepatocyte injury. We show that during the development of erastin-induced ferroptotic cell death, accumulation of cellular NO, ROS and lipid-ROS follows a sequential order, i.e., cellular NO accumulation first, followed by accumulation of cellular ROS, and lastly cellular lipid-ROS. Cellular NO, ROS and lipid-ROS each play a crucial role in mediating erastin-induced ferroptosis in cultured hepatocytes. In addition, it is shown that PDI is an important upstream mediator of erastin-induced ferroptosis through PDI-mediated conversion of NOS monomer to its dimer, which then leads to accumulation of cellular NO, ROS and lipid-ROS, and ultimately ferroptotic cell death. Genetic manipulation of PDI expression or pharmacological inhibition of PDI function each can effectively abrogate erastin-induced ferroptosis. Lastly, evidence is presented to show that PDI is also involved in mediating acetaminophen-induced liver injury in vivo using both wild-type C57BL/6J mice and hepatocyte-specific PDI conditional knockout (PDIfl/fl Alb-cre) mice. Together, our work demonstrates that PDI is an important upstream mediator of chemically-induced, GSH depletion-associated hepatocyte ferroptosis, and inhibition of PDI can effectively prevent this injury.
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Affiliation(s)
- Yan-Yin Zhu
- Shenzhen Key Laboratory of Steroid Drug Discovery and Development, School of Medicine, The Chinese University of Hong Kong, 2001 Longxiang Blvd., Longgang District, Shenzhen, 518172, Guangdong, China
| | - Qi Zhang
- Shenzhen Key Laboratory of Steroid Drug Discovery and Development, School of Medicine, The Chinese University of Hong Kong, 2001 Longxiang Blvd., Longgang District, Shenzhen, 518172, Guangdong, China
| | - Yi-Chen Jia
- Shenzhen Key Laboratory of Steroid Drug Discovery and Development, School of Medicine, The Chinese University of Hong Kong, 2001 Longxiang Blvd., Longgang District, Shenzhen, 518172, Guangdong, China
| | - Ming-Jie Hou
- Shenzhen Key Laboratory of Steroid Drug Discovery and Development, School of Medicine, The Chinese University of Hong Kong, 2001 Longxiang Blvd., Longgang District, Shenzhen, 518172, Guangdong, China
| | - Bao Ting Zhu
- Shenzhen Key Laboratory of Steroid Drug Discovery and Development, School of Medicine, The Chinese University of Hong Kong, 2001 Longxiang Blvd., Longgang District, Shenzhen, 518172, Guangdong, China.
- Shenzhen Bay Laboratory, Shenzhen, 518055, China.
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4
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Quan W, Liu X. Tandem mass tag (TMT)-based quantitative proteomics analysis reveals the different responses of contrasting alfalfa varieties to drought stress. BMC Genomics 2024; 25:806. [PMID: 39192174 DOI: 10.1186/s12864-024-10702-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 08/12/2024] [Indexed: 08/29/2024] Open
Abstract
BACKGROUND Drought stress restricts the growth, distribution and productivity of alfalfa (Medicago sativa L.). In order to study the response differences of alfalfa cultivars to drought stress, we previously carried out physiological and molecular comparative analysis on two alfalfa varieties with contrasting drought resistance (relatively drought-tolerant Longdong and drought-sensitive Algonquin). However, the differences in proteomic factors of the two varieties in response to drought stress still need to be further studied. Therefore, TMT-based quantitative proteomic analysis was performed using leaf tissues of the two alfalfa cultivars to identify and uncover differentially abundant proteins (DAPs). RESULTS In total, 677 DAPs were identified in Algonquin and 277 in Longdong under drought stress. Subsequently, we conducted various bioinformatics analysis on these DAPs, including subcellular location, functional classification and biological pathway enrichment. The first two main COG functional categories of DAPs in both alfalfa varieties after drought stress were 'Translation, ribosomal structure and biogenesis' and 'Posttranslational modification, protein turnover, chaperones'. According to KEGG database, the DAPs of the two alfalfa cultivars after drought treatment were differentially enriched in different biological pathways. The DAPs from Algonquin were enriched in 'photosynthesis' and 'ribosome'. The pathways of 'linoleic acid metabolism', 'protein processing in endoplasmic reticulum' and 'RNA transport' in Longdong were significantly enriched. Finally, we found significant differences in DAP enrichment and expression patterns between Longdong and Algonquin in glycolysis/glycogenesis, TCA cycle, photosynthesis, protein biosynthesis, flavonoid and isoflavonoid biosynthesis, and plant-pathogen interaction pathway after drought treatment. CONCLUSIONS The differences of DAPs involved in various metabolic pathways may explain the differences in the resistance of the two varieties to drought stress. These DAPs can be used as candidate proteins for molecular breeding of alfalfa to cultivate new germplasm with more drought tolerance to adapt to unfavorable environments.
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Affiliation(s)
- Wenli Quan
- College of Bioengineering, Sichuan University of Science and Engineering, Yibin, 644000, China
| | - Xun Liu
- College of Bioengineering, Sichuan University of Science and Engineering, Yibin, 644000, China.
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5
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Al Sultan A, Rattray Z, Rattray NJW. Cytotoxicity and toxicoproteomics analysis of thiazolidinedione exposure in human-derived cardiomyocytes. J Appl Toxicol 2024; 44:1214-1235. [PMID: 38654465 DOI: 10.1002/jat.4613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 03/16/2024] [Accepted: 04/02/2024] [Indexed: 04/26/2024]
Abstract
Thiazolidinediones (TZDs) (e.g. pioglitazone and rosiglitazone), known insulin sensitiser agents for type II diabetes mellitus, exhibit controversial effects on cardiac tissue. Despite consensus on their association with increased heart failure risk, limiting TZD use in diabetes management, the underlying mechanisms remain uncharacterised. Herein, we report a comprehensive in vitro investigation utilising a novel toxicoproteomics pipeline coupled with cytotoxicity assays in human adult cardiomyocytes to elucidate mechanistic insights into TZD cardiotoxicity. The cytotoxicity assay findings showed a significant loss of mitochondrial adenosine triphosphate production upon exposure to either TZD agents, which may underpin TZD cardiotoxicity. Our toxicoproteomics analysis revealed that mitochondrial dysfunction primarily stems from oxidative phosphorylation impairment, with distinct signalling mechanisms observed for both agents. The type of cell death differed strikingly between the two agents, with rosiglitazone exhibiting features of caspase-dependent apoptosis and pioglitazone implicating mitochondrial-mediated necroptosis, as evidenced by the protein upregulation in the phosphoglycerate mutase family 5-dynamin-related protein 1 axis. Furthermore, our analysis revealed additional mechanistic aspects of cardiotoxicity, showcasing drug specificity. The downregulation of various proteins involved in protein machinery and protein processing in the endoplasmic reticulum was observed in rosiglitazone-treated cells, implicating proteostasis in the rosiglitazone cardiotoxicity. Regarding pioglitazone, the findings suggested the potential activation of the interplay between the complement and coagulation systems and the disruption of the cytoskeletal architecture, which was primarily mediated through the integrin-signalling pathways responsible for pioglitazone-induced myocardial contractile failure. Collectively, this study unlocks substantial mechanistic insight into TZD cardiotoxicity, providing the rationale for future optimisation of antidiabetic therapies.
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Affiliation(s)
- Abdullah Al Sultan
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
- Faculty of Pharmacy, Kuwait University, Safat, Kuwait
| | - Zahra Rattray
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
| | - Nicholas J W Rattray
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
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6
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Alfaro GF, Palombo V, D’Andrea M, Cao W, Zhang Y, Beever JE, Muntifering RB, Pacheco WJ, Rodning SP, Wang X, Moisá SJ. Hepatic transcript profiling in beef cattle: Effects of feeding endophyte-infected tall fescue seeds. PLoS One 2024; 19:e0306431. [PMID: 39058685 PMCID: PMC11280227 DOI: 10.1371/journal.pone.0306431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 06/17/2024] [Indexed: 07/28/2024] Open
Abstract
The objective of our study was to evaluate the effect of endophyte-infected tall fescue (E+) seeds intake on liver tissue transcriptome in growing Angus × Simmental steers and heifers through RNA-seq analysis. Normal weaned calves (~8 months old) received either endophyte-free tall fescue (E-; n = 3) or infected tall fescue (E+; n = 6) seeds for a 30-d period. The diet offered was ad libitum bermudagrass (Cynodon dactylon) hay combined with a nutritional supplement of 1.61 kg (DM basis) of E+ or E- tall fescue seeds, and 1.61 kg (DM basis) of energy/protein supplement pellets for a 30-d period. Dietary E+ tall fescue seeds were included in a rate of 20 μg of ergovaline/kg BW/day. Liver tissue was individually obtained through biopsy at d 30. After preparation and processing of the liver samples for RNA sequencing, we detected that several metabolic pathways were activated (i.e., upregulated) by the consumption of E+ tall fescue. Among them, oxidative phosphorylation, ribosome biogenesis, protein processing in endoplasmic reticulum and apoptosis, suggesting an active mechanism to cope against impairment in normal liver function. Interestingly, hepatic protein synthesis might increase due to E+ consumption. In addition, there was upregulation of "thermogenesis" KEGG pathway, showing a possible increase in energy expenditure in liver tissue due to consumption of E+ diet. Therefore, results from our study expand the current knowledge related to liver metabolism of growing beef cattle under tall fescue toxicosis.
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Affiliation(s)
- Gastón F. Alfaro
- Department of Animal Sciences, Auburn University, Auburn, AL, United States of America
| | - Valentino Palombo
- Department of Agricultural, Environmental and Food Sciences, Università degli Studi del Molise, Campobasso, Italy
| | - MariaSilvia D’Andrea
- Department of Agricultural, Environmental and Food Sciences, Università degli Studi del Molise, Campobasso, Italy
| | - Wenqi Cao
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL, United States of America
| | - Yue Zhang
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL, United States of America
| | - Jonathan E. Beever
- Department of Animal Sciences, University of Tennessee, Knoxville, TN, United States of America
| | | | - Wilmer J. Pacheco
- Department of Poultry Sciences, Auburn University, Auburn, AL, United States of America
| | - Soren P. Rodning
- Department of Animal Sciences, Auburn University, Auburn, AL, United States of America
| | - Xu Wang
- Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL, United States of America
- HudsonAlpha Institute for Biotechnology, Huntsville, AL, United States of America
| | - Sonia J. Moisá
- Department of Animal Sciences, University of Tennessee, Knoxville, TN, United States of America
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7
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Hendershot LM, Buck TM, Brodsky JL. The Essential Functions of Molecular Chaperones and Folding Enzymes in Maintaining Endoplasmic Reticulum Homeostasis. J Mol Biol 2024; 436:168418. [PMID: 38143019 DOI: 10.1016/j.jmb.2023.168418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 12/26/2023]
Abstract
It has been estimated that up to one-third of the proteins encoded by the human genome enter the endoplasmic reticulum (ER) as extended polypeptide chains where they undergo covalent modifications, fold into their native structures, and assemble into oligomeric protein complexes. The fidelity of these processes is critical to support organellar, cellular, and organismal health, and is perhaps best underscored by the growing number of disease-causing mutations that reduce the fidelity of protein biogenesis in the ER. To meet demands encountered by the diverse protein clientele that mature in the ER, this organelle is populated with a cadre of molecular chaperones that prevent protein aggregation, facilitate protein disulfide isomerization, and lower the activation energy barrier of cis-trans prolyl isomerization. Components of the lectin (glycan-binding) chaperone system also reside within the ER and play numerous roles during protein biogenesis. In addition, the ER houses multiple homologs of select chaperones that can recognize and act upon diverse peptide signatures. Moreover, redundancy helps ensure that folding-compromised substrates are unable to overwhelm essential ER-resident chaperones and enzymes. In contrast, the ER in higher eukaryotic cells possesses a single member of the Hsp70, Hsp90, and Hsp110 chaperone families, even though several homologs of these molecules reside in the cytoplasm. In this review, we discuss specific functions of the many factors that maintain ER quality control, highlight some of their interactions, and describe the vulnerabilities that arise from the absence of multiple members of some chaperone families.
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Affiliation(s)
- Linda M Hendershot
- Department of Tumor Cell Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, United States.
| | - Teresa M Buck
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, United States
| | - Jeffrey L Brodsky
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, United States
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8
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Wang H, Hou MJ, Liao L, Li P, Chen T, Wang P, Zhu BT. Strong Protection by 4-Hydroxyestrone against Erastin-Induced Ferroptotic Cell Death in Estrogen Receptor-Negative Human Breast Cancer Cells: Evidence for Protein Disulfide Isomerase as a Mechanistic Target for Protection. Biochemistry 2024; 63:984-999. [PMID: 38569593 PMCID: PMC11025120 DOI: 10.1021/acs.biochem.3c00261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 12/31/2023] [Accepted: 01/03/2024] [Indexed: 04/05/2024]
Abstract
Ferroptosis is a recently identified form of regulated cell death, characterized by excessive iron-dependent lipid peroxidation. Recent studies have demonstrated that protein disulfide isomerase (PDI) is an important mediator of chemically induced ferroptosis and also a new target for protection against ferroptosis-associated cell death. In the present study, we identified that 4-hydroxyestrone (4-OH-E1), a metabolic derivative of endogenous estrogen, is a potent small-molecule inhibitor of PDI, and can strongly protect against chemically induced ferroptotic cell death in the estrogen receptor-negative MDA-MB-231 human breast cancer cells. Pull-down and CETSA assays demonstrated that 4-OH-E1 can directly bind to PDI both in vitro and in intact cells. Computational modeling analysis revealed that 4-OH-E1 forms two hydrogen bonds with PDI His256, which is essential for its binding interaction and thus inhibition of PDI's catalytic activity. Additionally, PDI knockdown attenuates the protective effect of 4-OH-E1 as well as cystamine (a known PDI inhibitor) against chemically induced ferroptosis in human breast cancer cells. Importantly, inhibition of PDI by 4-OH-E1 and cystamine or PDI knockdown by siRNAs each markedly reduces iNOS activity and NO accumulation, which has recently been demonstrated to play an important role in erastin-induced ferroptosis. In conclusion, this study demonstrates that 4-OH-E1 is a novel inhibitor of PDI and can strongly inhibit ferroptosis in human breast cancer cells in an estrogen receptor-independent manner. The mechanistic understanding gained from the present study may also aid in understanding the estrogen receptor-independent cytoprotective actions of endogenous estrogen metabolites in many noncancer cell types.
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Affiliation(s)
- Hongge Wang
- Shenzhen
Key Laboratory of Steroid Drug Discovery and Development, School of
Medicine, The Chinese University of Hong
Kong, Shenzhen 518172, China
- School
of Life Sciences, University of Science
and Technology of China, Hefei, Anhui 230026, China
| | - Ming-Jie Hou
- Shenzhen
Key Laboratory of Steroid Drug Discovery and Development, School of
Medicine, The Chinese University of Hong
Kong, Shenzhen 518172, China
| | - Lixi Liao
- Shenzhen
Key Laboratory of Steroid Drug Discovery and Development, School of
Medicine, The Chinese University of Hong
Kong, Shenzhen 518172, China
| | - Peng Li
- Shenzhen
Key Laboratory of Steroid Drug Discovery and Development, School of
Medicine, The Chinese University of Hong
Kong, Shenzhen 518172, China
| | - Tongxiang Chen
- Shenzhen
Key Laboratory of Steroid Drug Discovery and Development, School of
Medicine, The Chinese University of Hong
Kong, Shenzhen 518172, China
| | - Pan Wang
- Shenzhen
Key Laboratory of Steroid Drug Discovery and Development, School of
Medicine, The Chinese University of Hong
Kong, Shenzhen 518172, China
| | - Bao Ting Zhu
- Shenzhen
Key Laboratory of Steroid Drug Discovery and Development, School of
Medicine, The Chinese University of Hong
Kong, Shenzhen 518172, China
- Shenzhen
Bay Laboratory, Shenzhen 518055, China
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9
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Kij A, Bar A, Czyzynska-Cichon I, Przyborowski K, Proniewski B, Mateuszuk L, Kurylowicz Z, Jasztal A, Buczek E, Kurpinska A, Suraj-Prazmowska J, Marczyk B, Matyjaszczyk-Gwarda K, Daiber A, Oelze M, Walczak M, Chlopicki S. Vascular protein disulfide isomerase A1 mediates endothelial dysfunction induced by angiotensin II in mice. Acta Physiol (Oxf) 2024; 240:e14116. [PMID: 38400621 DOI: 10.1111/apha.14116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 01/31/2024] [Accepted: 02/02/2024] [Indexed: 02/25/2024]
Abstract
AIM Protein disulfide isomerases (PDIs) are involved in platelet aggregation and intravascular thrombosis, but their role in regulating endothelial function is unclear. Here, we characterized the involvement of vascular PDIA1 in angiotensin II (Ang II)-induced endothelial dysfunction in mice. METHODS Endothelial dysfunction was induced in C57BL/6JCmd male mice via Ang II subcutaneous infusion, and PDIA1 was inhibited with bepristat. Endothelial function was assessed in vivo with magnetic resonance imaging and ex vivo with a myography, while arterial stiffness was measured as pulse wave velocity. Nitric oxide (NO) bioavailability was measured in the aorta (spin-trapping electron paramagnetic resonance) and plasma (NO2 - and NO3 - levels). Oxidative stress, eNOS uncoupling (DHE-based aorta staining), and thrombin activity (thrombin-antithrombin complex; calibrated automated thrombography) were evaluated. RESULTS The inhibition of PDIA1 by bepristat in Ang II-treated mice prevented the impairment of NO-dependent vasodilation in the aorta as evidenced by the response to acetylcholine in vivo, increased systemic NO bioavailability and the aortic NO production, and decreased vascular stiffness. Bepristat's effect on NO-dependent function was recapitulated ex vivo in Ang II-induced endothelial dysfunction in isolated aorta. Furthermore, bepristat diminished the Ang II-induced eNOS uncoupling and overproduction of ROS without affecting thrombin activity. CONCLUSION In Ang II-treated mice, the inhibition of PDIA1 normalized the NO-ROS balance, prevented endothelial eNOS uncoupling, and, thereby, improved vascular function. These results indicate the importance of vascular PDIA1 in regulating endothelial function, but further studies are needed to elucidate the details of the mechanisms involved.
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Affiliation(s)
- Agnieszka Kij
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Anna Bar
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Izabela Czyzynska-Cichon
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Kamil Przyborowski
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Bartosz Proniewski
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Lukasz Mateuszuk
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Zuzanna Kurylowicz
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Agnieszka Jasztal
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Elzbieta Buczek
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Anna Kurpinska
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Joanna Suraj-Prazmowska
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Brygida Marczyk
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | | | - Andreas Daiber
- Laboratory of Molecular Cardiology, Department of Cardiology 1, The Center for Cardiology, University Medical Center, Mainz, Germany
| | - Matthias Oelze
- Laboratory of Molecular Cardiology, Department of Cardiology 1, The Center for Cardiology, University Medical Center, Mainz, Germany
| | - Maria Walczak
- Department of Toxicology, Jagiellonian University Medical College, Krakow, Poland
| | - Stefan Chlopicki
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
- Department of Pharmacology, Jagiellonian University Medical College, Krakow, Poland
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10
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Solanki K, Bezsonov E, Orekhov A, Parihar SP, Vaja S, White FA, Obukhov AG, Baig MS. Effect of reactive oxygen, nitrogen, and sulfur species on signaling pathways in atherosclerosis. Vascul Pharmacol 2024; 154:107282. [PMID: 38325566 DOI: 10.1016/j.vph.2024.107282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 02/04/2024] [Indexed: 02/09/2024]
Abstract
Atherosclerosis is a chronic inflammatory disease in which fats, lipids, cholesterol, calcium, proliferating smooth muscle cells, and immune cells accumulate in the intima of the large arteries, forming atherosclerotic plaques. A complex interplay of various vascular and immune cells takes place during the initiation and progression of atherosclerosis. Multiple reports indicate that tight control of reactive oxygen species (ROS), reactive nitrogen species (RNS), and reactive sulfur species (RSS) production is critical for maintaining vascular health. Unrestricted ROS and RNS generation may lead to activation of various inflammatory signaling pathways, facilitating atherosclerosis. Given these deleterious consequences, it is important to understand how ROS and RNS affect the signaling processes involved in atherogenesis. Conversely, RSS appears to exhibit an atheroprotective potential and can alleviate the deleterious effects of ROS and RNS. Herein, we review the literature describing the effects of ROS, RNS, and RSS on vascular smooth muscle cells, endothelial cells, and macrophages and focus on how changes in their production affect the initiation and progression of atherosclerosis. This review also discusses the contribution of ROS, RNS, and RSS in mediating various post-translational modifications, such as oxidation, nitrosylation, and sulfation, of the molecules involved in inflammatory signaling.
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Affiliation(s)
- Kundan Solanki
- Department of Biosciences and Biomedical Engineering (BSBE), Indian Institute of Technology Indore (IITI), Simrol, Indore, India
| | - Evgeny Bezsonov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Moscow, Russia; Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Avtsyn Research Institute of Human Morphology, Petrovsky National Research Centre of Surgery, Moscow, Russia; Department of Biology and General Genetics, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia; The Cell Physiology and Pathology Laboratory, Turgenev State University of Orel, Orel, Russia
| | - Alexander Orekhov
- Institute for Atherosclerosis Research, Skolkovo Innovative Center, Moscow, Russia
| | - Suraj P Parihar
- Wellcome Centre for Infectious Diseases Research in Africa (CIDRI-Africa) and Institute of Infectious Diseases and Molecular Medicine (IDM), Division of Medical Microbiology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa; Department of Biochemistry, Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University, Potchefstroom, South Africa
| | - Shivani Vaja
- Department of Biosciences and Biomedical Engineering (BSBE), Indian Institute of Technology Indore (IITI), Simrol, Indore, India
| | - Fletcher A White
- Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Department of Anesthesia, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Alexander G Obukhov
- Department of Anatomy, Cell Biology & Physiology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
| | - Mirza S Baig
- Department of Biosciences and Biomedical Engineering (BSBE), Indian Institute of Technology Indore (IITI), Simrol, Indore, India.
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11
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Doharey PK, Verma P, Dubey A, Singh SK, Kumar M, Tripathi T, Alonazi M, Siddiqi NJ, Sharma B. Biophysical and in-silico studies on the structure-function relationship of Brugia malayi protein disulfide isomerase. J Biomol Struct Dyn 2024; 42:1533-1543. [PMID: 37079006 DOI: 10.1080/07391102.2023.2201849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 04/03/2023] [Indexed: 04/21/2023]
Abstract
Human Lymphatic filariasis is caused by parasitic nematodes Wuchereria bancrofti, Brugia malayi, and Brugia timori. Protein disulfide isomerase (PDI), a redox-active enzyme, helps to form and isomerize the disulfide bonds, thereby acting as a chaperone. Such activity is essential for activating many essential enzymes and functional proteins. Brugia malayi protein disulfide isomerase (BmPDI) is crucial for parasite survival and an important drug target. Here, we used a combination of spectroscopic and computational analysis to study the structural and functional changes in the BmPDI during unfolding. Tryptophan fluorescence data revealed two well-separated transitions during the unfolding process, suggesting that the unfolding of the BmPDI is non-cooperative. The binding of the fluorescence probe 8-anilino-1-naphthalene sulfonic acid dye (ANS) validated the results obtained by the pH unfolding. The dynamics of molecular simulation performed at different pH conditions revealed the structural basis of BmPDI unfolding. Detailed analysis suggested that under different pH, both the global structure and the conformational dynamics of the active site residues were differentially altered. Our multiparametric study reveals the differential dynamics and collective motions of BmPDI unfolding, providing insights into its structure-function relationship.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
| | - Pravesh Verma
- Biochemistry Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Amit Dubey
- Computational Chemistry and Drug discovery Division, Quanta calculus Pvt. Ltd, Kushinagar, India
- Department of Pharmacology, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | - Sudhir Kumar Singh
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Manish Kumar
- Department of Biochemistry, University of Allahabad, Allahabad, India
| | - Timir Tripathi
- Department of Biochemistry, North-Eastern Hill University, Umshing, India
| | - Mona Alonazi
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Nikhat Jamal Siddiqi
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Bechan Sharma
- Department of Biochemistry, University of Allahabad, Allahabad, India
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12
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Hoang KNL, Murphy CJ. Adsorption and Molecular Display of a Redox-Active Protein on Gold Nanoparticle Surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15974-15985. [PMID: 37906943 DOI: 10.1021/acs.langmuir.3c01983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Engineered gold nanoparticles (AuNPs) have great potential in many applications due to their tunable optical properties, facile synthesis, and surface functionalization via thiol chemistry. When exposed to a biological environment, NPs are coated with a protein corona that can alter the NPs' biological identity but can also affect the proteins' structures and functions. Protein disulfide isomerase (PDI) is an abundant protein responsible for the disulfide formation and isomerization that contribute to overall cell redox homeostasis and signaling. Given that AuNPs are widely employed in nanomedicine and PDI plays a functional role in various diseases, the interactions between oxidized (oPDI) and reduced (rPDI) with 50 nm citrate-coated AuNPs (AuNPs) are examined in this study using various techniques. Upon incubation, PDI adsorbs to the AuNP surface, which leads to a reduction in its enzymatic activity despite limited changes in secondary structures. Partial enzymatic digestion followed by mass spectrometry analysis shows that orientation of PDI on the NP surface is dependent on both its oxidation state and the PDI:AuNP incubation ratios.
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Affiliation(s)
- Khoi Nguyen L Hoang
- Department of Chemistry, University of Illinois Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Catherine J Murphy
- Department of Chemistry, University of Illinois Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
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13
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Alias FL, Nezhad NG, Normi YM, Ali MSM, Budiman C, Leow TC. Recent Advances in Overexpression of Functional Recombinant Lipases. Mol Biotechnol 2023; 65:1737-1749. [PMID: 36971996 DOI: 10.1007/s12033-023-00725-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 03/13/2023] [Indexed: 03/29/2023]
Abstract
Heterologous functional expression of the recombinant lipases is typically a bottleneck due to the expression in the insoluble fraction as inclusion bodies (IBs) which are in inactive form. Due to the importance of lipases in various industrial applications, many investigations have been conducted to discover suitable approaches to obtain functional lipase or increase the expressed yield in the soluble fraction. The utilization of the appropriate prokaryotic and eukaryotic expression systems, along with the suitable vectors, promoters, and tags, has been recognized as a practical approach. One of the most powerful strategies to produce bioactive lipases is using the molecular chaperones co-expressed along with the target protein's genes into the expression host to produce the lipase in soluble fraction as a bioactive form. The refolding of expressed lipase from IBs (inactive) is another practical strategy which is usually carried out through chemical and physical methods. Based on recent investigations, the current review simultaneously highlights strategies to express the bioactive lipases and recover the bioactive lipases from the IBs in insoluble form.
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Affiliation(s)
- Fatin Liyana Alias
- Enzyme and Microbial Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Nima Ghahremani Nezhad
- Enzyme and Microbial Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Yahaya M Normi
- Enzyme and Microbial Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Mohd Shukuri Mohamad Ali
- Enzyme and Microbial Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Cahyo Budiman
- Biotechnology Research Institute, Universiti Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, Malaysia
| | - Thean Chor Leow
- Enzyme and Microbial Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
- Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
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14
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Ghosh AK, Khan AH, Das PK. Naphthalimide-Based AIEgens for Sensing Protein Disulfide Isomerase through Thiol-Disulfide Redox Exchange. Anal Chem 2023; 95:13638-13648. [PMID: 37651212 DOI: 10.1021/acs.analchem.3c02442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Aggregation-induced emission (AIE)-based fluorescent organic nanoparticles (FONPs) with distinctive characteristics are emerging as superior sensors due to their facile fabrication, high signal-to-noise ratio, and good biocompatibility. The present article delineates the detection and analysis of the redox behavior of the protein disulfide isomerase (PDI) enzyme by exploitation of the AIE of novel naphthalimide (NI) derivatives having thiol (-SH) and disulfide (-S-S-) moieties. Self-aggregated spherical-shaped organic nanoparticles were prepared by synthesized NI-based amphiphiles (NISH, NISS, NINSS, and TNINSH) through J-type aggregation in DMSO-water (fw = 99 vol %). Naphthyl residue containing NI-derived amphiphiles (NINSS and TNINSH) exhibited AIE (blue and yellow) at 470 and 550 nm, respectively, in DMSO-water (fw = 99 vol %). NINSS and TNINSH FONPs were suitably utilized in sensing PDI through their redox nature of thiol-disulfide exchange. Fluorescence quenching of NINSS FONPs was observed due to reduction of disulfide to thiol by PDI, whereas emission intensity was progressively red-shifted and enhanced ("Dual-AIE") for TNINSH (containing ER-targeting N-tosylethylenediamine), owing to oxidation of thiol to disulfide by PDI. NINSS and TNINSH FONPs were found to be highly efficient in sensing PDI through the AIE-based "fluorescence off/on" mechanism having limits of detection of ∼12.6-17.7 and ∼11.7-16.5 ng/mL, respectively. In vitro cell imaging for NIH3T3 (noncancer) and B16F10 (melanoma) cells with NINSS and TNINSH FONPs displayed excellent diagnosis of eukaryotic cells upon interaction with indigenous PDI. Notably, detection of cancer cells was more sensitive over the noncancerous cells by these FONPs due to overexpression of PDI within cancer cells.
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Affiliation(s)
- Anup Kumar Ghosh
- School of Biological Sciences, Indian Association for the Cultivation of Science Jadavpur, Kolkata 700032, India
| | - Aftab Hossain Khan
- School of Biological Sciences, Indian Association for the Cultivation of Science Jadavpur, Kolkata 700032, India
| | - Prasanta Kumar Das
- School of Biological Sciences, Indian Association for the Cultivation of Science Jadavpur, Kolkata 700032, India
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15
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Yao C, Zeng L, Liu Q, Qiu X, Chen C. LncRNA FAM225B Regulates PDIA4-Mediated Ovarian Cancer Cell Invasion and Migration via Modulating Transcription Factor DDX17. Breast J 2023; 2023:3970444. [PMID: 37720188 PMCID: PMC10501846 DOI: 10.1155/2023/3970444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 07/11/2023] [Accepted: 08/21/2023] [Indexed: 09/19/2023]
Abstract
Objective This study aimed to explore the roles and mechanisms of lncRNA FAM225B and PDIA4 in ovarian cancer. Methods RT-qPCR and Western blot assays were performed to detect the expression levels of the lncRNAs FAM225B, DDX17, and PDIA4 in the serum of patients with ovarian cancer and cell lines. Cells were transfected with lncRNA FAM225B- and PDIA4-related vectors to determine the malignant phenotypes using functional experiments. The mutual binding of lncRNA FAM225B and DDX17 was verified using RNA pull-down and RIP assays. Results The expression of lncRNAs FAM225B and PDIA4 was decreased in the serum of patients with ovarian cancer and cell lines. Restoration of lncRNA FAM225B or PDIA4 reduced cell proliferation, migration, and invasion abilities and elevated the apoptosis rate, whereas suppression of lncRNA FAM225B or PDIA4 exhibited an inverse trend. RNA pull-down and RIP assays revealed a direct interaction between lncRNA FAM225B and DDX17. ChIP assay revealed a relationship between DDX17 and the PDIA4 promoter. LncRNA FAM225B and DDX17 positively regulate PDIA4 expression. Downregulation of PDIA4 expression counteracts the suppressive effect of lncRNA FAM225B overexpression in ovarian cancer cells. Conclusion This research study supports the fact that lncRNA FAM225B in ovarian cancer can upregulate PDIA4 by directly binding to DDX17, inhibiting the activities of ovarian cancer cells.
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Affiliation(s)
- Chanjiao Yao
- No. 2 Obstetrics and Gynecology Department, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, China
| | - Lingjuan Zeng
- No. 2 Obstetrics and Gynecology Department, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, China
| | - Qin Liu
- No. 2 Obstetrics and Gynecology Department, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, China
| | - Xiaoxin Qiu
- Obstetrics and Gynecology Department, Hunan Provincial People's Hospital Xingsha Branch (People's Hospital of Changsha County), Changsha, China
| | - Chunyan Chen
- No. 2 Obstetrics and Gynecology Department, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, China
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16
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Angrisano F, Ford A, Blagborough AM, Bullen HE. Protein disulfide isomerases - a way to tackle malaria. Trends Parasitol 2023; 39:622-625. [PMID: 37302957 DOI: 10.1016/j.pt.2023.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/22/2023] [Accepted: 05/22/2023] [Indexed: 06/13/2023]
Abstract
Protein disulfide isomerases (PDIs) ensure that specific substrate proteins are correctly folded. PDI activity plays an essential role in malaria transmission. Here we provide an overview of the role of PDIs in malaria-causing Plasmodium parasites and outline why PDI inhibition could be a novel way to treat malaria and prevent transmission.
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Affiliation(s)
- Fiona Angrisano
- Burnet Institute, 85 Commercial Road, Victoria, Australia 3004
| | - Amelia Ford
- Division of Microbiology and Parasitology, Department of Pathology, Cambridge University, Tennis Court Road, Cambridge, CB2 1QP, UK
| | - Andrew Michael Blagborough
- Division of Microbiology and Parasitology, Department of Pathology, Cambridge University, Tennis Court Road, Cambridge, CB2 1QP, UK.
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17
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Knoke LR, Zimmermann J, Lupilov N, Schneider JF, Celebi B, Morgan B, Leichert LI. The role of glutathione in periplasmic redox homeostasis and oxidative protein folding in Escherichia coli. Redox Biol 2023; 64:102800. [PMID: 37413765 DOI: 10.1016/j.redox.2023.102800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 06/24/2023] [Indexed: 07/08/2023] Open
Abstract
The thiol redox balance in the periplasm of E. coli depends on the DsbA/B pair for oxidative power and the DsbC/D system as its complement for isomerization of non-native disulfides. While the standard redox potentials of those systems are known, the in vivo "steady state" redox potential imposed onto protein thiol disulfide pairs in the periplasm remains unknown. Here, we used genetically encoded redox probes (roGFP2 and roGFP-iL), targeted to the periplasm, to directly probe the thiol redox homeostasis in this compartment. These probes contain two cysteine residues that are virtually completely reduced in the cytoplasm, but once exported into the periplasm, can form a disulfide bond, a process that can be monitored by fluorescence spectroscopy. Even in the absence of DsbA, roGFP2, exported to the periplasm, was almost fully oxidized, suggesting the presence of an alternative system for the introduction of disulfide bonds into exported proteins. However, the absence of DsbA shifted the steady state periplasmic thiol-redox potential from -228 mV to a more reducing -243 mV and the capacity to re-oxidize periplasmic roGFP2 after a reductive pulse was significantly decreased. Re-oxidation in a DsbA strain could be fully restored by exogenous oxidized glutathione (GSSG), while reduced GSH accelerated re-oxidation of roGFP2 in the WT. In line, a strain devoid of endogenous glutathione showed a more reducing periplasm, and was significantly worse in oxidatively folding PhoA, a native periplasmic protein and substrate of the oxidative folding machinery. PhoA oxidative folding could be enhanced by the addition of exogenous GSSG in the WT and fully restored in a ΔdsbA mutant. Taken together this suggests the presence of an auxiliary, glutathione-dependent thiol-oxidation system in the bacterial periplasm.
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Affiliation(s)
- Lisa R Knoke
- Ruhr University Bochum, Institute of Biochemistry and Pathobiochemistry, Microbial Biochemistry, Bochum, Germany
| | - Jannik Zimmermann
- Institute of Biochemistry, Centre for Human and Molecular Biology (ZHMB), Saarland University, 66123, Saarbrücken, Germany
| | - Natalie Lupilov
- Ruhr University Bochum, Institute of Biochemistry and Pathobiochemistry, Microbial Biochemistry, Bochum, Germany
| | - Jannis F Schneider
- Ruhr University Bochum, Institute of Biochemistry and Pathobiochemistry, Microbial Biochemistry, Bochum, Germany
| | - Beyzanur Celebi
- Ruhr University Bochum, Institute of Biochemistry and Pathobiochemistry, Microbial Biochemistry, Bochum, Germany
| | - Bruce Morgan
- Institute of Biochemistry, Centre for Human and Molecular Biology (ZHMB), Saarland University, 66123, Saarbrücken, Germany
| | - Lars I Leichert
- Ruhr University Bochum, Institute of Biochemistry and Pathobiochemistry, Microbial Biochemistry, Bochum, Germany.
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18
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Mangiacotti M, Baeckens S, Fumagalli M, Martín J, Scali S, Sacchi R. Protein-lipid Association in Lizard Chemical Signals. Integr Org Biol 2023; 5:obad016. [PMID: 37228571 PMCID: PMC10205002 DOI: 10.1093/iob/obad016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 04/24/2023] [Accepted: 05/04/2023] [Indexed: 05/27/2023] Open
Abstract
Chemical communication in terrestrial vertebrates is often built on complex blends, where semiochemical and structural compounds may form an integrated functional unit. In lizards, many species have specialized epidermal glands whose secretions are waxy, homogeneous blends of lipids and proteins, both active in communication. The intimate co-occurrence of such compounds allows us to hypothesize that they should undergo a certain degree of covariation, considering both their semiochemical role and the support-to-lipid function hypothesized for the protein fraction. In order to assess the occurrence and level of protein-lipid covariation, we compared the composition and complexity of the two fractions in the femoral gland secretions of 36 lizard species, combining phylogenetically-informed analysis with tandem mass spectrometry. We found the composition and complexity of the two fractions to be strongly correlated. The composition of the protein fraction was mostly influenced by the relative proportion of cholestanol, provitamin D3, stigmasterol, and tocopherol, while the complexity of the protein pattern increased with that of lipids. Additionally, two identified proteins (carbonic anhydrase and protein disulfide isomerase) increased their concentration as provitamin D3 became more abundant. Although our approach does not allow us to decrypt the functional relations between the proteinaceous and lipid components, nor under the semiochemical or structural hypothesis, the finding that the proteins involved in this association were enzymes opens up to new perspectives about protein role: They may confer dynamic properties to the blend, making it able to compensate predictable variation of the environmental conditions. This may expand the view about proteins in the support-to-lipid hypothesis, from being a passive and inert component of the secretions to become an active and dynamic one, thus providing cues for future research.
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Affiliation(s)
| | - S Baeckens
- Functional Morphology Lab, Department of Biology, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
- Evolution and Optics of Nanostructures Group, Department of Biology, Ghent University, 9000 Gent, Belgium
| | - M Fumagalli
- Department of Biology and Biotechnologies “L. Spallanzani”, University of Pavia, Via Ferrata 9, 27100 Pavia, Italy
| | - J Martín
- Departamento de Ecología Evolutiva, Museo Nacional de Ciencias Naturales, CSIC, José Gutiérrez Abascal 2, E-28006 Madrid, Spain
| | - S Scali
- Sezione Erpetologia, Museo di Storia Naturale di Milano, Corso Venezia 55, IT-20121 Milano, Italy
| | - R Sacchi
- Department of Earth and Environmental Sciences, University of Pavia, Via Taramelli 24, 27100 Pavia, Italy
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Chetot T, Serfaty X, Carret L, Kriznik A, Sophie-Rahuel-Clermont, Grand L, Jacolot M, Popowycz F, Benoit E, Lambert V, Lattard V. Splice variants of protein disulfide isomerase - identification, distribution and functional characterization in the rat. Biochim Biophys Acta Gen Subj 2023; 1867:130280. [PMID: 36423740 DOI: 10.1016/j.bbagen.2022.130280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 10/28/2022] [Accepted: 11/13/2022] [Indexed: 11/23/2022]
Abstract
BACKGROUND Protein Disulfide Isomerase (PDI) enzyme is an emerging therapeutic target in oncology and hematology. Although PDI reductase activity has been studied with isolated fragments of the protein, natural structural variations affecting reductase activity have not been addressed. METHODS In this study, we discovered four coding splice variants of the Pdi pre-mRNA in rats. In vitro Michaelis constants and apparent maximum steady-state rate constants after purification and distribution in different rat tissues were determined. RESULTS The consensus sequence was found to be the most expressed splice variant while the second most expressed variant represents 15 to 35% of total Pdi mRNA. The third variant shows a quasi-null expression profile and the fourth was not quantifiable. The consensus sequence splice variant and the second splice variant are widely expressed (transcription level) in the liver and even more present in males. Measurements of the reductase activity of recombinant PDI indicate that the consensus sequence and third splice variant are fully active variants. The second most expressed variant, differing by a lack of signal peptide, was found active but less than the consensus sequence. GENERAL SIGNIFICANCE Our work emphasizes the importance of taking splice variants into account when studying PDI-like proteins to understand the full biological functionalities of PDI.
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Affiliation(s)
- Thomas Chetot
- USC 1233 RS2GP, VetAgro Sup, INRAe, Université de Lyon, 69280 Marcy l'étoile, France
| | - Xavier Serfaty
- USC 1233 RS2GP, VetAgro Sup, INRAe, Université de Lyon, 69280 Marcy l'étoile, France
| | - Léna Carret
- USC 1233 RS2GP, VetAgro Sup, INRAe, Université de Lyon, 69280 Marcy l'étoile, France
| | | | | | - Lucie Grand
- Univ Lyon, INSA Lyon, Université Lyon 1, CNRS, CPE Lyon, UMR 5246, ICBMS, 69621 Villeurbanne Cedex, France
| | - Maïwenn Jacolot
- Univ Lyon, INSA Lyon, Université Lyon 1, CNRS, CPE Lyon, UMR 5246, ICBMS, 69621 Villeurbanne Cedex, France
| | - Florence Popowycz
- Univ Lyon, INSA Lyon, Université Lyon 1, CNRS, CPE Lyon, UMR 5246, ICBMS, 69621 Villeurbanne Cedex, France
| | - Etienne Benoit
- USC 1233 RS2GP, VetAgro Sup, INRAe, Université de Lyon, 69280 Marcy l'étoile, France
| | - Véronique Lambert
- USC 1233 RS2GP, VetAgro Sup, INRAe, Université de Lyon, 69280 Marcy l'étoile, France
| | - Virginie Lattard
- USC 1233 RS2GP, VetAgro Sup, INRAe, Université de Lyon, 69280 Marcy l'étoile, France.
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20
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Cui JR, Bing XL, Tang YJ, Liu F, Ren L, Zhou JY, Liu HH, Wang MK, Hoffmann AA, Hong XY. A conserved protein disulfide isomerase enhances plant resistance against herbivores. PLANT PHYSIOLOGY 2023; 191:660-678. [PMID: 36269175 PMCID: PMC9806597 DOI: 10.1093/plphys/kiac489] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 10/05/2022] [Indexed: 05/22/2023]
Abstract
Herbivore-associated molecular patterns (HAMPs) enable plants to recognize herbivores and may help plants adjust their defense responses. Here, we report on herbivore-induced changes in a protein disulfide isomerase (PDI) widely distributed across arthropods. PDI from the spider mite Tetranychus evansi (TePDI), a mesophyll-feeding agricultural pest worldwide, triggered immunity in multiple Solanaceae plants. TePDI-mediated cell death in Nicotiana benthamiana required the plant signaling proteins SGT1 (suppressor of the G2 allele of skp1) and HSP90 (heat shock protein 90), but was suppressed by spider mite effectors Te28 and Te84. Moreover, PDIs from phylogenetically distinct herbivorous and nonherbivorous arthropods triggered plant immunity. Finally, although PDI-induced plant defenses impaired the performance of spider mites on plants, RNAi experiments revealed that PDI genes are essential for the survival of mites and whiteflies. Our findings indicate that plants recognize evolutionarily conserved HAMPs to activate plant defense and resist pest damage, pointing to opportunities for broad-spectrum pest management.
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Affiliation(s)
- Jia-Rong Cui
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Xiao-Li Bing
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Yi-Jing Tang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Fan Liu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Lu Ren
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Jia-Yi Zhou
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Huan-Huan Liu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Meng-Ke Wang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Ary A Hoffmann
- School of BioSciences, Bio21 Institute, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Xiao-Yue Hong
- College of Plant Protection, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
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21
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Lomovsky AI, Baburina YL, Fadeev RS, Lomovskaya YV, Kobyakova MI, Krestinin RR, Sotnikova LD, Krestinina OV. Melatonin Can Enhance the Effect of Drugs Used in the Treatment of Leukemia. BIOCHEMISTRY (MOSCOW) 2023; 88:73-85. [PMID: 37068876 DOI: 10.1134/s0006297923010078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Melatonin (N-acetyl-5-methoxytryptamine, MEL), secreted by the pineal gland, plays an important role in regulation of various functions in the human body. There is evidence that MEL exhibits antitumor effect in various types of cancer. We studied the combined effect of MEL and drugs from different pharmacological groups, such as cytarabine (CYT) and navitoclax (ABT-737), on the state of the pool of acute myeloid leukemia (AML) tumor cell using the MV4-11 cell line as model. The combined action of MEL with CYT or ABT-737 contributed to the decrease in proliferative activity of leukemic cells, decrease in the membrane potential of mitochondria, and increase in the production of reactive oxygen species (ROS) and cytosolic Ca2+. We have shown that introduction of MEL together with CYT or ABT-737 increases expression of the C/EBP homologous protein (CHOP) and the autophagy marker LC3A/B and decreases expression of the protein disulfide isomerase (PDI) and binding immunoglobulin protein (BIP), and, therefore, could modulate endoplasmic reticulum (ER) stress and initiate autophagy. The findings support an early suggestion that MEL is able to provide benefits for cancer treatment and be considered as an adjunct to the drugs used in cancer therapy.
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Affiliation(s)
- Alexey I Lomovsky
- Institute of Theoretical and Experimental Biophysics, Pushchino, Moscow Region, 142290, Russia
| | - Yulia L Baburina
- Institute of Theoretical and Experimental Biophysics, Pushchino, Moscow Region, 142290, Russia
| | - Roman S Fadeev
- Institute of Theoretical and Experimental Biophysics, Pushchino, Moscow Region, 142290, Russia
| | - Yana V Lomovskaya
- Institute of Theoretical and Experimental Biophysics, Pushchino, Moscow Region, 142290, Russia
| | - Margarita I Kobyakova
- Institute of Theoretical and Experimental Biophysics, Pushchino, Moscow Region, 142290, Russia
| | - Roman R Krestinin
- Institute of Theoretical and Experimental Biophysics, Pushchino, Moscow Region, 142290, Russia
| | - Linda D Sotnikova
- Institute of Theoretical and Experimental Biophysics, Pushchino, Moscow Region, 142290, Russia
| | - Olga V Krestinina
- Institute of Theoretical and Experimental Biophysics, Pushchino, Moscow Region, 142290, Russia.
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22
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Guevara-Olaya L, Chimal-Vega B, Castañeda-Sánchez CY, López-Cossio LY, Pulido-Capiz A, Galindo-Hernández O, Díaz-Molina R, Ruiz Esparza-Cisneros J, García-González V. LDL Promotes Disorders in β-Cell Cholesterol Metabolism, Implications on Insulin Cellular Communication Mediated by EVs. Metabolites 2022; 12:754. [PMID: 36005626 PMCID: PMC9415214 DOI: 10.3390/metabo12080754] [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: 07/18/2022] [Revised: 08/05/2022] [Accepted: 08/08/2022] [Indexed: 12/01/2022] Open
Abstract
Dyslipidemia is described as a hallmark of metabolic syndrome, promoting a stage of metabolic inflammation (metainflammation) that could lead to misbalances in energetic metabolism, contributing to insulin resistance, and modifying intracellular cholesterol pathways and the renin-angiotensin system (RAS) in pancreatic islets. Low-density lipoprotein (LDL) hypercholesterolemia could disrupt the tissue communication between Langerhans β-cells and hepatocytes, wherein extracellular vesicles (EVs) are secreted by β-cells, and exposition to LDL can impair these phenomena. β-cells activate compensatory mechanisms to maintain insulin and metabolic homeostasis; therefore, the work aimed to characterize the impact of LDL on β-cell cholesterol metabolism and the implication on insulin secretion, connected with the regulation of cellular communication mediated by EVs on hepatocytes. Our results suggest that β-cells can endocytose LDL, promoting an increase in de novo cholesterol synthesis targets. Notably, LDL treatment increased mRNA levels and insulin secretion; this hyperinsulinism condition was associated with the transcription factor PDX-1. However, a compensatory response that maintains basal levels of intracellular calcium was described, mediated by the overexpression of calcium targets PMCA1/4, SERCA2, and NCX1, together with the upregulation of the unfolded protein response (UPR) through the activation of IRE1 and PERK arms to maintain protein homeostasis. The LDL treatment induced metainflammation by IL-6, NF-κB, and COX-2 overexpression. Furthermore, LDL endocytosis triggered an imbalance of the RAS components. LDL treatment increased the intracellular levels of cholesterol on lipid droplets; the adaptive β-cell response was portrayed by the overexpression of cholesterol transporters ABCA1 and ABCG1. Therefore, lipotoxicity and hyperinsulinism induced by LDL were regulated by the natural compound auraptene, a geranyloxyn coumarin modulator of cholesterol-esterification by ACAT1 enzyme inhibition. EVs isolated from β-cells impaired insulin signaling via mTOR/p70S6Kα in hepatocytes, a phenomenon regulated by auraptene. Our results show that LDL overload plays a novel role in hyperinsulinism, mechanisms associated with a dysregulation of intracellular cholesterol, lipotoxicity, and the adaptive UPR, which may be regulated by coumarin-auraptene; these conditions explain the affectations that occur during the initial stages of insulin resistance.
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Affiliation(s)
- Lizbeth Guevara-Olaya
- Departamento de Bioquímica, Facultad de Medicina Mexicali, Universidad Autónoma de Baja California, Mexicali 21000, BC, Mexico
- Laboratorio Multidisciplinario de Estudios Metabólicos y Cáncer, Facultad de Medicina Mexicali, Universidad Autónoma de BC, Mexicali 21000, BC, Mexico
| | - Brenda Chimal-Vega
- Departamento de Bioquímica, Facultad de Medicina Mexicali, Universidad Autónoma de Baja California, Mexicali 21000, BC, Mexico
- Laboratorio Multidisciplinario de Estudios Metabólicos y Cáncer, Facultad de Medicina Mexicali, Universidad Autónoma de BC, Mexicali 21000, BC, Mexico
| | - César Yahel Castañeda-Sánchez
- Departamento de Bioquímica, Facultad de Medicina Mexicali, Universidad Autónoma de Baja California, Mexicali 21000, BC, Mexico
- Laboratorio Multidisciplinario de Estudios Metabólicos y Cáncer, Facultad de Medicina Mexicali, Universidad Autónoma de BC, Mexicali 21000, BC, Mexico
| | - Leslie Y. López-Cossio
- Departamento de Bioquímica, Facultad de Medicina Mexicali, Universidad Autónoma de Baja California, Mexicali 21000, BC, Mexico
- Laboratorio Multidisciplinario de Estudios Metabólicos y Cáncer, Facultad de Medicina Mexicali, Universidad Autónoma de BC, Mexicali 21000, BC, Mexico
| | - Angel Pulido-Capiz
- Departamento de Bioquímica, Facultad de Medicina Mexicali, Universidad Autónoma de Baja California, Mexicali 21000, BC, Mexico
- Laboratorio de Biología Molecular, Facultad de Medicina Mexicali, Universidad Autónoma de Baja California, Mexicali 21000, BC, Mexico
| | - Octavio Galindo-Hernández
- Departamento de Bioquímica, Facultad de Medicina Mexicali, Universidad Autónoma de Baja California, Mexicali 21000, BC, Mexico
- Laboratorio Multidisciplinario de Estudios Metabólicos y Cáncer, Facultad de Medicina Mexicali, Universidad Autónoma de BC, Mexicali 21000, BC, Mexico
| | - Raúl Díaz-Molina
- Departamento de Bioquímica, Facultad de Medicina Mexicali, Universidad Autónoma de Baja California, Mexicali 21000, BC, Mexico
- Laboratorio Multidisciplinario de Estudios Metabólicos y Cáncer, Facultad de Medicina Mexicali, Universidad Autónoma de BC, Mexicali 21000, BC, Mexico
| | | | - Victor García-González
- Departamento de Bioquímica, Facultad de Medicina Mexicali, Universidad Autónoma de Baja California, Mexicali 21000, BC, Mexico
- Laboratorio Multidisciplinario de Estudios Metabólicos y Cáncer, Facultad de Medicina Mexicali, Universidad Autónoma de BC, Mexicali 21000, BC, Mexico
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23
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Ming Q, Wang K, Wang J, Liu J, Li X, Wei P, Guo H, Chen J, Zong J. The combination of RNA-seq transcriptomics and data-independent acquisition proteomics reveals the mechanisms underlying enhanced salt tolerance by the ZmPDI gene in Zoysia matrella [L.] Merr. FRONTIERS IN PLANT SCIENCE 2022; 13:970651. [PMID: 36003810 PMCID: PMC9393727 DOI: 10.3389/fpls.2022.970651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 07/22/2022] [Indexed: 06/15/2023]
Abstract
Zoysia matrella [L.] Merr. is one of the three most economically important Zoysia species due to its strong salt tolerance and wide application. However, the molecular mechanisms regulating salt tolerance in Z. matrella remain unknown. The protein disulfide isomerase ZmPDI of Z. matrella was obtained by salt stress screening with yeast cells, and its expression was significantly upregulated after salt stress. Based on the obtained ZmPDI overexpression transgenic Z. matrella plants, we carried out salt tolerance identification and found that ZmPDI can significantly enhance the salt tolerance of Z. matrella. Root samples of OX-ZmPDI transgenic and wild-type plants were collected at 0 and 24 h after salt treatments for RNA-seq and data-independent acquisition (DIA) proteome sequencing. Combined analysis of the transcriptome and proteome revealed that ZmPDI may enhance the salt tolerance of Z. matrella by regulating TUBB2, PXG4, PLDα2, PFK4, and 4CL1. This research presents the molecular regulatory mechanism of the ZmPDI gene in Z. matrella for resistance to salt stress and facilitates the use of molecular breeding to improve the salt tolerance of grasses.
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Affiliation(s)
- Qiang Ming
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-season Turfgrasses, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Kai Wang
- Jiangsu Coastal Area Institute of Agricultural Sciences, Yancheng, China
| | - Jingjing Wang
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-season Turfgrasses, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Jianxiu Liu
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-season Turfgrasses, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Xiaohui Li
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-season Turfgrasses, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Peipei Wei
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-season Turfgrasses, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Hailin Guo
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-season Turfgrasses, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Jingbo Chen
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-season Turfgrasses, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Junqin Zong
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-season Turfgrasses, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
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24
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Mechanism of Erastin-Induced Ferroptosis in MDA-MB-231 Human Breast Cancer Cells: Evidence for a Critical Role of Protein Disulfide Isomerase. Mol Cell Biol 2022; 42:e0052221. [PMID: 35499331 PMCID: PMC9202373 DOI: 10.1128/mcb.00522-21] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Ferroptosis is a form of regulated cell death resulting predominantly from catastrophic accumulation of lipid reactive oxygen species (ROS). While the antioxidant systems that counter ferroptosis have been well characterized, the mechanism underlying ferroptosis-associated accumulation of lipid ROS remains unclear. In this study, we demonstrated that protein disulfide isomerase (PDI) is a novel mediator of ferroptosis, which is responsible for the accumulation of lipid ROS and ultimately ferroptosis in MDA-MB-231 human breast cancer cells. Treatment with erastin led to a significant increase in inducible nitric oxide synthase (iNOS)-mediated nitric oxide production, which contributes to the accumulation of the death-inducing cellular lipid ROS. Small interfering RNA (siRNA)-mediated PDI knockdown or pharmacological inhibition of PDI’s isomerase activity with cystamine strongly suppressed iNOS dimerization and its catalytic activation, subsequently prevented lipid ROS accumulation, and conferred strong protection against erastin-induced ferroptosis. Remarkably, PDI knockdown in MDA-MB-231 cells also largely abrogated the protective effect of cystamine against erastin-induced ferroptotic cell death. Together, these experimental observations demonstrate a noncanonical role of PDI in ferroptosis, which may serve as a potential therapeutic target for ferroptosis-related diseases.
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25
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Pourzand C, Albieri-Borges A, Raczek NN. Shedding a New Light on Skin Aging, Iron- and Redox-Homeostasis and Emerging Natural Antioxidants. Antioxidants (Basel) 2022; 11:471. [PMID: 35326121 PMCID: PMC8944509 DOI: 10.3390/antiox11030471] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/25/2022] [Accepted: 02/25/2022] [Indexed: 12/10/2022] Open
Abstract
Reactive oxygen species (ROS) are necessary for normal cell signaling and the antimicrobial defense of the skin. However excess production of ROS can disrupt the cellular redox balance and overwhelm the cellular antioxidant (AO) capacity, leading to oxidative stress. In the skin, oxidative stress plays a key role in driving both extrinsic and intrinsic aging. Sunlight exposure has also been a major contributor to extrinsic photoaging of the skin as its oxidising components disrupt both redox- and iron-homeostasis, promoting oxidative damage to skin cells and tissue constituents. Upon oxidative insults, the interplay between excess accumulation of ROS and redox-active labile iron (LI) and its detrimental consequences to the skin are often overlooked. In this review we have revisited the oxidative mechanisms underlying skin damage and aging by focussing on the concerted action of ROS and redox-active LI in the initiation and progression of intrinsic and extrinsic skin aging processes. Based on these, we propose to redefine the selection criteria for skin antiaging and photoprotective ingredients to include natural antioxidants (AOs) exhibiting robust redox-balancing and/or iron-chelating properties. This would promote the concept of natural-based or bio-inspired bifunctional anti-aging and photoprotective ingredients for skincare and sunscreen formulations with both AO and iron-chelating properties.
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Affiliation(s)
- Charareh Pourzand
- Medicines Design, Department of Pharmacy and Pharmacology, University of Bath, Bath BA2 7AY, UK
- Medicines Development, Centre for Therapeutic Innovation, University of Bath, Bath BA2 7AY, UK
| | - Andrea Albieri-Borges
- Research and Development, ASEA LLC., Pleasant Grove, UT 84062, USA; (A.A.-B.); (N.N.R.)
| | - Nico N. Raczek
- Research and Development, ASEA LLC., Pleasant Grove, UT 84062, USA; (A.A.-B.); (N.N.R.)
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Yang S, Jackson C, Karapetyan E, Dutta P, Kermah D, Wu Y, Wu Y, Schloss J, Vadgama JV. Roles of Protein Disulfide Isomerase in Breast Cancer. Cancers (Basel) 2022; 14:745. [PMID: 35159012 PMCID: PMC8833603 DOI: 10.3390/cancers14030745] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/28/2022] [Accepted: 01/29/2022] [Indexed: 02/08/2023] Open
Abstract
Protein disulfide isomerase (PDI) is the endoplasmic reticulum (ER)'s most abundant and essential enzyme and serves as the primary catalyst for protein folding. Due to its apparent role in supporting the rapid proliferation of cancer cells, the selective blockade of PDI results in apoptosis through sustained activation of UPR pathways. The functions of PDI, especially in cancers, have been extensively studied over a decade, and recent research has explored the use of PDI inhibitors in the treatment of cancers but with focus areas of other cancers, such as brain or ovarian cancer. In this review, we discuss the roles of PDI members in breast cancer and PDI inhibitors used in breast cancer research. Additionally, a few PDI members may be suggested as potential molecular targets for highly metastatic breast cancers, such as TNBC, that require more attention in future research.
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Affiliation(s)
- Suhui Yang
- Division of Cancer Research and Training, Department of Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA 90059, USA; (E.K.); (P.D.); (Y.W.); (Y.W.); (J.S.)
- School of Pharmacy, American University of Health Sciences, Signal Hill, CA 90755, USA
| | - Chanel Jackson
- Post Baccalaureate Pre-Medical Program, Charles R. Drew University of Medicine and Science, Los Angeles, CA 90059, USA;
| | - Eduard Karapetyan
- Division of Cancer Research and Training, Department of Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA 90059, USA; (E.K.); (P.D.); (Y.W.); (Y.W.); (J.S.)
| | - Pranabananda Dutta
- Division of Cancer Research and Training, Department of Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA 90059, USA; (E.K.); (P.D.); (Y.W.); (Y.W.); (J.S.)
| | - Dulcie Kermah
- Urban Health Institute, Charles R. Drew University of Medicine and Science, Los Angeles, CA 90059, USA;
| | - Yong Wu
- Division of Cancer Research and Training, Department of Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA 90059, USA; (E.K.); (P.D.); (Y.W.); (Y.W.); (J.S.)
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, The University of California at Los Angeles, Los Angeles, CA 90059, USA
| | - Yanyuan Wu
- Division of Cancer Research and Training, Department of Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA 90059, USA; (E.K.); (P.D.); (Y.W.); (Y.W.); (J.S.)
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, The University of California at Los Angeles, Los Angeles, CA 90059, USA
| | - John Schloss
- Division of Cancer Research and Training, Department of Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA 90059, USA; (E.K.); (P.D.); (Y.W.); (Y.W.); (J.S.)
- School of Pharmacy, American University of Health Sciences, Signal Hill, CA 90755, USA
| | - Jaydutt V. Vadgama
- Division of Cancer Research and Training, Department of Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA 90059, USA; (E.K.); (P.D.); (Y.W.); (Y.W.); (J.S.)
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, The University of California at Los Angeles, Los Angeles, CA 90059, USA
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Lu Y, Yuan L, Zhou Z, Wang M, Wang X, Zhang S, Sun Q. The thiol-disulfide exchange activity of AtPDI1 is involved in the response to abiotic stresses. BMC PLANT BIOLOGY 2021; 21:557. [PMID: 34814838 PMCID: PMC8609882 DOI: 10.1186/s12870-021-03325-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 11/01/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Arabidopsis protein disulfide isomerase 1 (AtPDI1) has been demonstrated to have disulfide isomerase activity and to be involved in the stress response. However, whether the anti-stress function is directly related to the activities of thiol-disulfide exchange remains to be elucidated. RESULTS In the present study, encoding sequences of AtPDI1 of wild-type (WT) and double-cysteine-mutants were transformed into an AtPDI1 knockdown Arabidopsis line (pdi), and homozygous transgenic plants named pdi-AtPDI1, pdi-AtPDI1m1 and pdi-AtPDI1m2 were obtained. Compared with the WT and pdi-AtPDI1, the respective germination ratios of pdi-AtPDI1m1 and pdi-AtPDI1m2 were significantly lower under abiotic stresses and exogenous ABA treatment, whereas the highest germination rate was obtained with AtPDI1 overexpression in the WT (WT- AtPDI1). The root length among different lines was consistent with the germination rate; a higher germination rate was observed with a longer root length. When seedlings were treated with salt, drought, cold and high temperature stresses, pdi-AtPDI1m1, pdi-AtPDI1m2 and pdi displayed lower survival rates than WT and AtPDI1 overexpression plants. The transcriptional levels of ABA-responsive genes and genes encoding ROS-quenching enzymes were lower in pdi-AtPDI1m1 and pdi-AtPDI1m2 than in pdi-AtPDI1. CONCLUSION Taken together, these results clearly suggest that the anti-stress function of AtPDI1 is directly related to the activity of disulfide isomerase.
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Affiliation(s)
- Ying Lu
- College of Life Science, State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China
- Institute of Shandong River Wetlands, Jinan, Shandong, 271100, People's Republic of China
| | - Li Yuan
- College of Life Science, State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China
| | - Zhou Zhou
- College of Life Science, State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China
| | - Mengyu Wang
- College of Life Science, State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China
| | - Xiaoyun Wang
- College of Life Science, State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China
| | - Shizhong Zhang
- College of Life Science, State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China.
| | - Qinghua Sun
- College of Life Science, State Key Laboratory of Crop Biology, Shandong Agricultural University, Taian, Shandong, 271018, People's Republic of China.
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28
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Morro B, Broughton R, Balseiro P, Handeland SO, Mackenzie S, Doherty MK, Whitfield PD, Shimizu M, Gorissen M, Sveier H, Albalat A. Endoplasmic reticulum stress as a key mechanism in stunted growth of seawater rainbow trout (Oncorhynchus mykiss). BMC Genomics 2021; 22:824. [PMID: 34781893 PMCID: PMC8594166 DOI: 10.1186/s12864-021-08153-5] [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: 06/02/2021] [Accepted: 11/01/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Rainbow trout (Oncorhynchus mykiss) is a salmonid species with a complex life-history. Wild populations are naturally divided into freshwater residents and sea-run migrants. Migrants undergo an energy-demanding adaptation for life in seawater, known as smoltification, while freshwater residents display these changes in an attenuated magnitude and rate. Despite this, in seawater rainbow trout farming all fish are transferred to seawater. Under these circumstances, weeks after seawater transfer, a significant portion of the fish die (around 10%) or experience growth stunting (GS; around 10%), which represents an important profitability and welfare issue. The underlying causes leading to GS in seawater-transferred rainbow trout remain unknown. In this study, we aimed at characterising the GS phenotype in seawater-transferred rainbow trout using untargeted and targeted approaches. To this end, the liver proteome (LC-MS/MS) and lipidome (LC-MS) of GS and fast-growing phenotypes were profiled to identify molecules and processes that are characteristic of the GS phenotype. Moreover, the transcription, abundance or activity of key proteins and hormones related to osmoregulation (Gill Na+, K + -ATPase activity), growth (plasma IGF-I, and liver igf1, igfbp1b, ghr1 and ctsl) and stress (plasma cortisol) were measured using targeted approaches. RESULTS No differences in Gill Na+, K + -ATPase activity and plasma cortisol were detected between the two groups. However, a significant downregulation in plasma IGF-I and liver igf1 transcription pointed at this growth factor as an important pathomechanism for GS. Changes in the liver proteome revealed reactive-oxygen-species-mediated endoplasmic reticulum stress as a key mechanism underlying the GS phenotype. From the lipidomic analysis, key observations include a reduction in triacylglycerols and elevated amounts of cardiolipins, a characteristic lipid class associated with oxidative stress, in GS phenotype. CONCLUSION While the triggers to the activation of endoplasmic reticulum stress are still unknown, data from this study point towards a nutritional deficiency as an underlying driver of this phenotype.
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Affiliation(s)
- Bernat Morro
- Institute of Aquaculture, University of Stirling, Stirling, UK
| | | | - Pablo Balseiro
- NORCE AS, Bergen, Norway.,Department of Biological Sciences, University of Bergen, Bergen, Norway
| | - Sigurd O Handeland
- NORCE AS, Bergen, Norway.,Department of Biological Sciences, University of Bergen, Bergen, Norway
| | - Simon Mackenzie
- Institute of Aquaculture, University of Stirling, Stirling, UK.,NORCE AS, Bergen, Norway
| | - Mary K Doherty
- Institute of Health Research and Innovation, Centre for Health Science, University of the Highlands and Islands, Scotland, UK
| | - Phillip D Whitfield
- Institute of Health Research and Innovation, Centre for Health Science, University of the Highlands and Islands, Scotland, UK.,Institute of Infection, Immunity and Inflammation, University of Glasgow, Scotland, UK
| | - Munetaka Shimizu
- Faculty of Fisheries Sciences, Hokkaido University, Sapporo, Japan
| | - Marnix Gorissen
- Department of Animal Ecology and Physiology, Radboud University, Institute of Water and Wetland Research, Nijmegen, The Netherlands
| | | | - Amaya Albalat
- Institute of Aquaculture, University of Stirling, Stirling, UK.
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29
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Paglia G, Antonini L, Cervoni L, Ragno R, Sabatino M, Minacori M, Rubini E, Altieri F. A Comparative Analysis of Punicalagin Interaction with PDIA1 and PDIA3 by Biochemical and Computational Approaches. Biomedicines 2021; 9:biomedicines9111533. [PMID: 34829762 PMCID: PMC8614999 DOI: 10.3390/biomedicines9111533] [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: 09/30/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 11/29/2022] Open
Abstract
In a previous work, it was shown that punicalagin, an active ingredient of pomegranate, is able to bind to PDIA3 and inhibit its disulfide reductase activity. Here we provide evidence that punicalagin can also bind to PDIA1, the main expressed form of protein disulfide isomerase (PDI). In this comparative study, the affinity and the effect of punicalagin binding on each protein were evaluated, and a computational approach was used to identify putative binding sites. Punicalagin binds to either PDIA1 or PDIA3 with a similar affinity, but the inhibition efficacy on protein reductase activity is higher for PDIA3. Additionally, punicalagin differently affects the thermal denaturation profile of both proteins. Molecular docking and molecular dynamics simulations led to propose a punicalagin binding mode on PDIA1 and PDIA3, identifying the binding sites at the redox domains a’ in two different pockets, suggesting different effects of punicalagin on proteins’ structure. This study provides insights to develop punicalagin-based ligands, to set up a rational design for PDIA3 selective inhibitors, and to dissect the molecular determinant to modulate the protein activity.
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Affiliation(s)
- Giuliano Paglia
- Department of Biochemical Sciences “Alessandro Rossi Fanelli”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (G.P.); (L.C.); (M.M.); (E.R.)
| | - Lorenzo Antonini
- Rome Center for Molecular Design, Department of Drug Chemistry and Technology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.A.); (R.R.); (M.S.)
| | - Laura Cervoni
- Department of Biochemical Sciences “Alessandro Rossi Fanelli”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (G.P.); (L.C.); (M.M.); (E.R.)
| | - Rino Ragno
- Rome Center for Molecular Design, Department of Drug Chemistry and Technology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.A.); (R.R.); (M.S.)
| | - Manuela Sabatino
- Rome Center for Molecular Design, Department of Drug Chemistry and Technology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (L.A.); (R.R.); (M.S.)
| | - Marco Minacori
- Department of Biochemical Sciences “Alessandro Rossi Fanelli”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (G.P.); (L.C.); (M.M.); (E.R.)
| | - Elisabetta Rubini
- Department of Biochemical Sciences “Alessandro Rossi Fanelli”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (G.P.); (L.C.); (M.M.); (E.R.)
- Enrico ed Enrica Sovena Foundation, 00199 Rome, Italy
| | - Fabio Altieri
- Department of Biochemical Sciences “Alessandro Rossi Fanelli”, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (G.P.); (L.C.); (M.M.); (E.R.)
- Correspondence:
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30
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Mahmood F, Xu R, Awan MUN, Song Y, Han Q, Xia X, Zhang J. PDIA3: Structure, functions and its potential role in viral infections. Biomed Pharmacother 2021; 143:112110. [PMID: 34474345 DOI: 10.1016/j.biopha.2021.112110] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/21/2021] [Accepted: 08/23/2021] [Indexed: 02/08/2023] Open
Abstract
The catalysis of disulphide (SS) bonds is the most important characteristic of protein disulphide isomerase (PDI) family. Catalysis occurs in the endoplasmic reticulum, which contains many proteins, most of which are secretory in nature and that have at least one s-s bond. Protein disulphide isomerase A3 (PDIA3) is a member of the PDI family that acts as a chaperone. PDIA3 is highly expressed in response to cellular stress, and also intercept the apoptotic cellular death related to endoplasmic reticulum (ER) stress, and protein misfolding. PDIA3 expression is elevated in almost 70% of cancers and its expression has been linked with overall low cell invasiveness, survival and metastasis. Viral diseases present a significant public health threat. The presence of PDIA3 on the cell surface helps different viruses to enter the cells and also helps in replication. Therefore, inhibitors of PDIA3 have great potential to interfere with viral infections. In this review, we summarize what is known about the basic structure, functions and role of PDIA3 in viral infections. The review will inspire studies of pathogenic mechanisms and drug targeting to counter viral diseases.
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Affiliation(s)
- Faisal Mahmood
- Molecular Medicine Research Centre of Yunnan Province, Faculty of Life Science and Technology, Kunming University of Science and Technology, 727 Jingming South Road, Kunming 650500, China
| | - Ruixian Xu
- Molecular Medicine Research Centre of Yunnan Province, Faculty of Life Science and Technology, Kunming University of Science and Technology, 727 Jingming South Road, Kunming 650500, China
| | - Maher Un Nisa Awan
- Laboratory of Molecular Neurobiology, Medical Faculty, Kunming University of Science and Technology, 727 Jingming South Road, Kunming 650500, China
| | - Yuzhu Song
- Molecular Medicine Research Centre of Yunnan Province, Faculty of Life Science and Technology, Kunming University of Science and Technology, 727 Jingming South Road, Kunming 650500, China
| | - Qinqin Han
- Molecular Medicine Research Centre of Yunnan Province, Faculty of Life Science and Technology, Kunming University of Science and Technology, 727 Jingming South Road, Kunming 650500, China
| | - Xueshan Xia
- Molecular Medicine Research Centre of Yunnan Province, Faculty of Life Science and Technology, Kunming University of Science and Technology, 727 Jingming South Road, Kunming 650500, China.
| | - Jinyang Zhang
- Molecular Medicine Research Centre of Yunnan Province, Faculty of Life Science and Technology, Kunming University of Science and Technology, 727 Jingming South Road, Kunming 650500, China.
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31
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Parakh S, Perri ER, Vidal M, Sultana J, Shadfar S, Mehta P, Konopka A, Thomas CJ, Spencer DM, Atkin JD. Protein disulphide isomerase (PDI) is protective against amyotrophic lateral sclerosis (ALS)-related mutant Fused in Sarcoma (FUS) in in vitro models. Sci Rep 2021; 11:17557. [PMID: 34475430 PMCID: PMC8413276 DOI: 10.1038/s41598-021-96181-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 07/26/2021] [Indexed: 12/04/2022] Open
Abstract
Mutations in Fused in Sarcoma (FUS) are present in familial and sporadic cases of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). FUS is localised in the nucleus where it has important functions in DNA repair. However, in ALS/FTD, mutant FUS mislocalises from the nucleus to the cytoplasm where it forms inclusions, a key pathological hallmark of neurodegeneration. Mutant FUS also inhibits protein import into the nucleus, resulting in defects in nucleocytoplasmic transport. Fragmentation of the neuronal Golgi apparatus, induction of endoplasmic reticulum (ER) stress, and inhibition of ER-Golgi trafficking are also associated with mutant FUS misfolding in ALS. Protein disulphide isomerase (PDI) is an ER chaperone previously shown to be protective against misfolding associated with mutant superoxide dismutase 1 (SOD1) and TAR DNA-binding protein-43 (TDP-43) in cellular and zebrafish models. However, a protective role against mutant FUS in ALS has not been previously described. In this study, we demonstrate that PDI is protective against mutant FUS. In neuronal cell line and primary cultures, PDI restores defects in nuclear import, prevents the formation of mutant FUS inclusions, inhibits Golgi fragmentation, ER stress, ER-Golgi transport defects, and apoptosis. These findings imply that PDI is a new therapeutic target in FUS-associated ALS.
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Affiliation(s)
- S Parakh
- Macquarie Centre for MND Research, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, NSW, 2109, Australia.,Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia
| | - E R Perri
- Macquarie Centre for MND Research, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, NSW, 2109, Australia.,Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia
| | - M Vidal
- Macquarie Centre for MND Research, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, NSW, 2109, Australia
| | - J Sultana
- Macquarie Centre for MND Research, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, NSW, 2109, Australia.,Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia
| | - S Shadfar
- Macquarie Centre for MND Research, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, NSW, 2109, Australia
| | - P Mehta
- Macquarie Centre for MND Research, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, NSW, 2109, Australia
| | - A Konopka
- Macquarie Centre for MND Research, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, NSW, 2109, Australia
| | - C J Thomas
- Department of Physiology, Anatomy and Microbiology, La Trobe University, Melbourne, VIC, 3086, Australia
| | - D M Spencer
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia
| | - J D Atkin
- Macquarie Centre for MND Research, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, NSW, 2109, Australia. .,Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia.
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32
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Nakamura T, Oh CK, Zhang X, Tannenbaum SR, Lipton SA. Protein Transnitrosylation Signaling Networks Contribute to Inflammaging and Neurodegenerative Disorders. Antioxid Redox Signal 2021; 35:531-550. [PMID: 33957758 PMCID: PMC8388249 DOI: 10.1089/ars.2021.0081] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Significance: Physiological concentrations of nitric oxide (NO•) and related reactive nitrogen species (RNS) mediate multiple signaling pathways in the nervous system. During inflammaging (chronic low-grade inflammation associated with aging) and in neurodegenerative diseases, excessive RNS contribute to synaptic and neuronal loss. "NO signaling" in both health and disease is largely mediated through protein S-nitrosylation (SNO), a redox-based posttranslational modification with "NO" (possibly in the form of nitrosonium cation [NO+]) reacting with cysteine thiol (or, more properly, thiolate anion [R-S-]). Recent Advances: Emerging evidence suggests that S-nitrosylation occurs predominantly via transnitros(yl)ation. Mechanistically, the reaction involves thiolate anion, as a nucleophile, performing a reversible nucleophilic attack on a nitroso nitrogen to form an SNO-protein adduct. Prior studies identified transnitrosylation reactions between glyceraldehyde-3-phosphate dehydrogenase (GAPDH)-nuclear proteins, thioredoxin-caspase-3, and X-linked inhibitor of apoptosis (XIAP)-caspase-3. Recently, we discovered that enzymes previously thought to act in completely disparate biochemical pathways can transnitrosylate one another during inflammaging in an unexpected manner to mediate neurodegeneration. Accordingly, we reported a concerted tricomponent transnitrosylation network from Uch-L1-to-Cdk5-to-Drp1 that mediates synaptic damage in Alzheimer's disease. Critical Issues: Transnitrosylation represents a critical chemical mechanism for transduction of redox-mediated events to distinct subsets of proteins. Although thousands of thiol-containing proteins undergo S-nitrosylation, how transnitrosylation regulates a myriad of neuronal attributes is just now being uncovered. In this review, we highlight recent progress in the study of the chemical biology of transnitrosylation between proteins as a mechanism of disease. Future Directions: We discuss future areas of study of protein transnitrosylation that link our understanding of aging, inflammation, and neurodegenerative diseases. Antioxid. Redox Signal. 35, 531-550.
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Affiliation(s)
- Tomohiro Nakamura
- Department of Molecular Medicine and Neurodegeneration New Medicines Center, The Scripps Research Institute, La Jolla, California, USA
| | - Chang-Ki Oh
- Department of Molecular Medicine and Neurodegeneration New Medicines Center, The Scripps Research Institute, La Jolla, California, USA
| | - Xu Zhang
- Department of Molecular Medicine and Neurodegeneration New Medicines Center, The Scripps Research Institute, La Jolla, California, USA
| | - Steven R Tannenbaum
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Stuart A Lipton
- Department of Molecular Medicine and Neurodegeneration New Medicines Center, The Scripps Research Institute, La Jolla, California, USA.,Department of Neurosciences, University of California San Diego School of Medicine, La Jolla, California, USA
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33
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Kim H, Lee ES, Kim J, Kim HD, Hwang NS. A cell surface-reducing microenvironment induces early osteogenic commitment. FEBS Lett 2021; 595:2147-2159. [PMID: 34245002 DOI: 10.1002/1873-3468.14160] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 07/02/2021] [Accepted: 07/05/2021] [Indexed: 11/06/2022]
Abstract
Stem cell-based therapy has been highlighted as a potential avenue to promote tissue regeneration, where stimulation of stem cells to differentiate into the targeted cell type is essential. One of the factors that induce stem cells to differentiate is their surrounding microenvironment. In this study, the correlation between mild reductant and early osteogenic commitment was evaluated. A cell surface-reducing microenvironment significantly silenced the transforming growth factor (TGF)-β signaling pathway of mesenchymal stem cells (MSCs), followed by increased focal adhesion and inhibition of cell membrane protein dimerization. Furthermore, in vivo transplantation of MSCs exposed to the reducing microenvironment resulted in an early osteogenic commitment and neobone formation. Thus, these results highlight the potential of cell surface-reducing microenvironment to influence early osteogenic commitment.
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Affiliation(s)
- Hyunbum Kim
- School of Chemical and Biological Engineering, Seoul National University, Korea
| | - Eun-Seo Lee
- School of Chemical and Biological Engineering, Seoul National University, Korea
| | - Jiyong Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Hwan Drew Kim
- Department of Polymer Science and Engineering, Korea National University of Transportation, Chungju, Korea
| | - Nathaniel S Hwang
- School of Chemical and Biological Engineering, Seoul National University, Korea
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, Korea
- Institute of Chemical Processes, Seoul National University, Seoul, Korea
- BioMAX/N-Bio Institute, Institute of BioEngineering, Seoul National University, Korea
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34
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Hu Y, Yu L, Fan H, Huang G, Wu Q, Nie Y, Liu S, Yan L, Wei F. Genomic Signatures of Coevolution between Nonmodel Mammals and Parasitic Roundworms. Mol Biol Evol 2021; 38:531-544. [PMID: 32960966 PMCID: PMC7826172 DOI: 10.1093/molbev/msaa243] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Antagonistic coevolution between host and parasite drives species evolution. However, most of the studies only focus on parasitism adaptation and do not explore the coevolution mechanisms from the perspective of both host and parasite. Here, through the de novo sequencing and assembly of the genomes of giant panda roundworm, red panda roundworm, and lion roundworm parasitic on tiger, we investigated the genomic mechanisms of coevolution between nonmodel mammals and their parasitic roundworms and those of roundworm parasitism in general. The genome-wide phylogeny revealed that these parasitic roundworms have not phylogenetically coevolved with their hosts. The CTSZ and prolyl 4-hydroxylase subunit beta (P4HB) immunoregulatory proteins played a central role in protein interaction between mammals and parasitic roundworms. The gene tree comparison identified that seven pairs of interactive proteins had consistent phylogenetic topology, suggesting their coevolution during host–parasite interaction. These coevolutionary proteins were particularly relevant to immune response. In addition, we found that the roundworms of both pandas exhibited higher proportions of metallopeptidase genes, and some positively selected genes were highly related to their larvae’s fast development. Our findings provide novel insights into the genetic mechanisms of coevolution between nonmodel mammals and parasites and offer the valuable genomic resources for scientific ascariasis prevention in both pandas.
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Affiliation(s)
- Yibo Hu
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China.,Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming, China
| | - Lijun Yu
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Huizhong Fan
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Guangping Huang
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Qi Wu
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Yonggang Nie
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming, China
| | - Shuai Liu
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Li Yan
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Fuwen Wei
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China.,Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming, China
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35
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Fernando SR, Lee CL, Wong BP, Cheng KW, Lee YL, Chan MC, Ng EH, Yeung WS, Lee KF. Expression of membrane protein disulphide isomerase A1 (PDIA1) disrupt a reducing microenvironment in endometrial epithelium for embryo implantation. Exp Cell Res 2021; 405:112665. [PMID: 34111473 DOI: 10.1016/j.yexcr.2021.112665] [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: 01/29/2021] [Revised: 05/18/2021] [Accepted: 05/21/2021] [Indexed: 10/21/2022]
Abstract
Various proteins in the endometrial epithelium are differentially expressed in the receptive phase and play a pivotal role in embryo implantation. The Protein Disulphide Isomerase (PDI) family contains 21 members that function as chaperone proteins through their redox activities. Although total PDIA1 protein expression was high in four common receptive (Ishikawa and RL95-2) and non-receptive (HEC1-B and AN3CA) endometrial epithelial cell lines, significantly higher membrane PDIA1 expression was found in non-receptive AN3CA cells. In Ishikawa cells, oestrogen up-regulated while progesterone down-regulated membrane PDIA1 expression. Moreover, mid-luteal phase hormone treatment down-regulated membrane PDIA1 expression. Furthermore, oestrogen at 10 nM reduced spheroid attachment on Ishikawa cells. Interestingly, inhibition of PDIA1 function by bacitracin or 16F16 increased the spheroid attachment rate onto non-receptive AN3CA cells. Over-expression of PDIA1 in receptive Ishikawa cells reduced the spheroid attachment rate and significantly down-regulated integrin β3 levels, but not integrin αV and E-cadherin. Addition of reducing agent TCEP induced a sulphydryl-rich microenvironment and increased spheroid attachment onto AN3CA cells and human primary endometrial epithelial cells collected at LH+7/8 days. The luminal epithelial cells from human endometrial biopsies had higher PDIA1 protein expression in the proliferative phase than in the secretory phase. Our findings suggest oestrogen and progesterone regulate PDIA1 expression, resulting in the differential expressions of membrane PDIA1 protein to modulate endometrial receptivity. This suggests that membrane PDIA1 expression prior to embryo transfer could be used to predict endometrial receptivity and embryo implantation in women undergoing assisted reproduction treatment.
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Affiliation(s)
- Sudini R Fernando
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region; Department of Animal Science, Faculty of Animal Science & Export Agriculture, Uva Wellassa University, Badulla, 50000, Sri Lanka
| | - Cheuk-Lun Lee
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Haiyuan 1st Road, Futian District, Shenzhen, 518053, China
| | - Benancy Pc Wong
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Kiu-Wai Cheng
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Yin-Lau Lee
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Haiyuan 1st Road, Futian District, Shenzhen, 518053, China
| | - Ming-Chung Chan
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Ernest Hy Ng
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Haiyuan 1st Road, Futian District, Shenzhen, 518053, China
| | - William Sb Yeung
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Haiyuan 1st Road, Futian District, Shenzhen, 518053, China
| | - Kai-Fai Lee
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Haiyuan 1st Road, Futian District, Shenzhen, 518053, China.
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36
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Cotrina-Vinagre FJ, Rodríguez-García ME, Martín-Hernández E, Durán-Aparicio C, Merino-López A, Medina-Benítez E, Martínez-Azorín F. Characterization of a complex phenotype (fever-dependent recurrent acute liver failure and osteogenesis imperfecta) due to NBAS and P4HB variants. Mol Genet Metab 2021; 133:201-210. [PMID: 33707149 DOI: 10.1016/j.ymgme.2021.02.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 02/21/2021] [Accepted: 02/22/2021] [Indexed: 01/26/2023]
Abstract
We report the clinical, biochemical and genetic findings from a Spanish boy of Caucasian origin who presented with fever-dependent RALF (recurrent acute liver failure) and osteogenesis imperfecta (OI). Whole-exome sequencing (WES) uncovered two compound heterozygous variants in NBAS (c.[1265 T > C];[1549C > T]:p.[(Leu422Pro)];[(Arg517Cys)]), and a heterozygous variant in P4HB (c.[194A > G];[194=]:p.[(Lys65Arg)];[(Lys65=)]) that was transmitted from the clinically unaffected mother who was mosaic carrier of the variant. Variants in NBAS protein have been associated with ILFS2 (infantile liver failure syndrome-2), SOPH syndrome (short stature, optic nerve atrophy, and Pelger-Huët anomaly syndrome), and multisystem diseases. Several patients showed clinical manifestations affecting the skeletal system, such as osteoporosis, pathologic fractures and OI. Experiments in the patient's fibroblasts demonstrated that mutated NBAS protein is overexpressed and thermally unstable, and reduces the expression of MGP, a regulator of bone homeostasis. Variant in PDI (protein encoded by P4HB) has been associated with CLCRP1 (Cole-Carpenter syndrome-1), a type of severe OI. An increase of COL1A2 protein retention was observed in the patient's fibroblasts. In order to study if the variant in P4HB was involved in the alteration in collagen trafficking, overexpression experiments of PDI were carried out. These experiments showed that overexpression of mutated PDI protein produces an increase in COL1A2 retention. In conclusion, these results corroborate that the variants in NBAS are responsible for the liver phenotype, and demonstrate that the variant in P4HB is involved in the bone phenotype, probably in synergy with NBAS variants.
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Affiliation(s)
- Francisco Javier Cotrina-Vinagre
- Grupo de Enfermedades Raras, Mitocondriales y Neuromusculares (ERMN), Instituto de Investigación Hospital 12 de Octubre (i+12), E-28041 Madrid, Spain
| | - María Elena Rodríguez-García
- Grupo de Enfermedades Raras, Mitocondriales y Neuromusculares (ERMN), Instituto de Investigación Hospital 12 de Octubre (i+12), E-28041 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), U723, E-28041 Madrid, Spain
| | - Elena Martín-Hernández
- Grupo de Enfermedades Raras, Mitocondriales y Neuromusculares (ERMN), Instituto de Investigación Hospital 12 de Octubre (i+12), E-28041 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), U723, E-28041 Madrid, Spain; Unidad Pediátrica de Enfermedades Raras, Enfermedades Mitocondriales y Metabólicas Hereditarias, Hospital 12 de Octubre, E-28041, Madrid, Spain
| | - Cristina Durán-Aparicio
- Departamento de Pediatría, Unidad de Gastroenterología y Hepatología Pediátricas, Hospital 12 de Octubre, E-28041, Madrid, Spain
| | - Abraham Merino-López
- Grupo de Enfermedades Raras, Mitocondriales y Neuromusculares (ERMN), Instituto de Investigación Hospital 12 de Octubre (i+12), E-28041 Madrid, Spain
| | - Enrique Medina-Benítez
- Departamento de Pediatría, Unidad de Gastroenterología y Hepatología Pediátricas, Hospital 12 de Octubre, E-28041, Madrid, Spain
| | - Francisco Martínez-Azorín
- Grupo de Enfermedades Raras, Mitocondriales y Neuromusculares (ERMN), Instituto de Investigación Hospital 12 de Octubre (i+12), E-28041 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), U723, E-28041 Madrid, Spain.
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Xu X, Chiu J, Chen S, Fang C. Pathophysiological roles of cell surface and extracellular protein disulfide isomerase and their molecular mechanisms. Br J Pharmacol 2021; 178:2911-2930. [PMID: 33837960 DOI: 10.1111/bph.15493] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 03/23/2021] [Accepted: 04/04/2021] [Indexed: 12/21/2022] Open
Abstract
Protein disulfide isomerase (PDI) is the prototypic member of the thiol isomerase family that catalyses disulfide bond rearrangement. Initially identified in the endoplasmic reticulum as folding catalysts, PDI and other members in its family have also been widely reported to reside on the cell surface and in the extracellular matrix. Although how PDI is exported and retained on the cell surface remains a subject of debate, this unique pool of PDI is developing into an important mechanism underlying the redox regulation of protein sulfhydryls that are critical for the cellular activities under various disease conditions. This review aims to provide an overview of the pathophysiological roles of surface and extracellular PDI and their underlying molecular mechanisms. Understanding the involvement of extracellular PDI in these diseases will advance our knowledge in the molecular aetiology to facilitate the development of novel pharmacological strategies by specifically targeting PDI in extracellular compartments.
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Affiliation(s)
- Xulin Xu
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China
| | - Joyce Chiu
- The Centenary Institute, National Health and Medical Research Council Clinical Trials Centre, University of Sydney, Sydney, New South Wales, Australia
| | - Shuai Chen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China
| | - Chao Fang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan, China
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Honer J, Niemeyer KM, Fercher C, Diez Tissera AL, Jaberolansar N, Jafrani YMA, Zhou C, Caramelo JJ, Shewan AM, Schulz BL, Brodsky JL, Zacchi LF. TorsinA folding and N-linked glycosylation are sensitive to redox homeostasis. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2021; 1868:119073. [PMID: 34062155 PMCID: PMC8889903 DOI: 10.1016/j.bbamcr.2021.119073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 05/18/2021] [Accepted: 05/26/2021] [Indexed: 01/03/2023]
Abstract
The Endoplasmic Reticulum (ER) is responsible for the folding and post-translational modification of secretory proteins, as well as for triaging misfolded proteins. During folding, there is a complex yet only partially understood interplay between disulfide bond formation, which is an enzyme catalyzed event in the oxidizing environment of the ER, along with other post-translational modifications (PTMs) and chaperone-supported protein folding. Here, we used the glycoprotein torsinA as a model substrate to explore the impact of ER redox homeostasis on PTMs and protein biogenesis. TorsinA is a AAA+ ATPase with unusual oligomeric properties and controversial functions. The deletion of a C-terminal glutamic acid residue (∆E) is associated with the development of Early-Onset Torsion Dystonia, a severe movement disorder. TorsinA differs from other AAA+ ATPases since it is an ER resident, and as a result of its entry into the ER torsinA contains two N-linked glycans and at least one disulfide bond. The role of these PTMs on torsinA biogenesis and function and the identity of the enzymes that catalyze them are poorly defined. Using a yeast torsinA expression system, we demonstrate that a specific protein disulfide isomerase, Pdi1, affects the folding and N-linked glycosylation of torsinA and torsinA∆E in a redox-dependent manner, suggesting that the acquisition of early torsinA folding intermediates is sensitive to perturbed interactions between Cys residues and the quality control machinery. We also highlight the role of specific Cys residues during torsinA biogenesis and demonstrate that torsinA∆E is more sensitive than torsinA when these Cys residues are mutated.
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Affiliation(s)
- Jonas Honer
- Department of Biological Sciences, A320 Langley Hall, University of Pittsburgh, Pittsburgh, PA 15260, United States of America
| | - Katie M Niemeyer
- Department of Biological Sciences, A320 Langley Hall, University of Pittsburgh, Pittsburgh, PA 15260, United States of America
| | - Christian Fercher
- Australian Research Council Training Centre for Biopharmaceutical Innovation, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Ana L Diez Tissera
- Fundación Instituto Leloir and Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA-CONICET), 1405 Buenos Aires, Argentina
| | - Noushin Jaberolansar
- Australian Research Council Training Centre for Biopharmaceutical Innovation, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Yohaann M A Jafrani
- Australian Research Council Training Centre for Biopharmaceutical Innovation, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Chun Zhou
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Julio J Caramelo
- Fundación Instituto Leloir and Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA-CONICET), 1405 Buenos Aires, Argentina
| | - Annette M Shewan
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Benjamin L Schulz
- Australian Research Council Training Centre for Biopharmaceutical Innovation, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St. Lucia, QLD 4072, Australia; School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Jeffrey L Brodsky
- Department of Biological Sciences, A320 Langley Hall, University of Pittsburgh, Pittsburgh, PA 15260, United States of America
| | - Lucía F Zacchi
- Department of Biological Sciences, A320 Langley Hall, University of Pittsburgh, Pittsburgh, PA 15260, United States of America; Australian Research Council Training Centre for Biopharmaceutical Innovation, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St. Lucia, QLD 4072, Australia; Fundación Instituto Leloir and Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA-CONICET), 1405 Buenos Aires, Argentina; School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Queensland, 4072, Australia.
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Kerr H, Herbert AP, Makou E, Abramczyk D, Malik TH, Lomax-Browne H, Yang Y, Pappworth IY, Denton H, Richards A, Marchbank KJ, Pickering MC, Barlow PN. Murine Factor H Co-Produced in Yeast With Protein Disulfide Isomerase Ameliorated C3 Dysregulation in Factor H-Deficient Mice. Front Immunol 2021; 12:681098. [PMID: 34054871 PMCID: PMC8149785 DOI: 10.3389/fimmu.2021.681098] [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: 03/15/2021] [Accepted: 04/22/2021] [Indexed: 12/05/2022] Open
Abstract
Recombinant human factor H (hFH) has potential for treating diseases linked to aberrant complement regulation including C3 glomerulopathy (C3G) and dry age-related macular degeneration. Murine FH (mFH), produced in the same host, is useful for pre-clinical investigations in mouse models of disease. An abundance of FH in plasma suggests high doses, and hence microbial production, will be needed. Previously, Pichia pastoris produced useful but modest quantities of hFH. Herein, a similar strategy yielded miniscule quantities of mFH. Since FH has 40 disulfide bonds, we created a P. pastoris strain containing a methanol-inducible codon-modified gene for protein-disulfide isomerase (PDI) and transformed this with codon-modified DNA encoding mFH under the same promoter. What had been barely detectable yields of mFH became multiple 10s of mg/L. Our PDI-overexpressing strain also boosted hFH overproduction, by about tenfold. These enhancements exceeded PDI-related production gains reported for other proteins, all of which contain fewer disulfide-stabilized domains. We optimized fermentation conditions, purified recombinant mFH, enzymatically trimmed down its (non-human) N-glycans, characterised its functions in vitro and administered it to mice. In FH-knockout mice, our de-glycosylated recombinant mFH had a shorter half-life and induced more anti-mFH antibodies than mouse serum-derived, natively glycosylated, mFH. Even sequential daily injections of recombinant mFH failed to restore wild-type levels of FH and C3 in mouse plasma beyond 24 hours after the first injection. Nevertheless, mFH functionality appeared to persist in the glomerular basement membrane because C3-fragment deposition here, a hallmark of C3G, remained significantly reduced throughout and beyond the ten-day dosing regimen.
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Affiliation(s)
- Heather Kerr
- Centre for Inflammation Research, Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
- School of Chemistry, University of Edinburgh, Edinburgh, United Kingdom
| | - Andrew P. Herbert
- School of Chemistry, University of Edinburgh, Edinburgh, United Kingdom
| | - Elisavet Makou
- School of Chemistry, University of Edinburgh, Edinburgh, United Kingdom
| | - Dariusz Abramczyk
- School of Chemistry, University of Edinburgh, Edinburgh, United Kingdom
| | - Talat H. Malik
- Centre for Inflammatory Disease, Imperial College London, London, United Kingdom
| | - Hannah Lomax-Browne
- Centre for Inflammatory Disease, Imperial College London, London, United Kingdom
| | - Yi Yang
- Translational and Clinical Research Institute, Newcastle University, Newcastle, United Kingdom
- National Renal Complement Therapeutics Center, Royal Victoria Infirmary, Newcastle, United Kingdom
| | - Isabel Y. Pappworth
- Translational and Clinical Research Institute, Newcastle University, Newcastle, United Kingdom
- National Renal Complement Therapeutics Center, Royal Victoria Infirmary, Newcastle, United Kingdom
| | - Harriet Denton
- Translational and Clinical Research Institute, Newcastle University, Newcastle, United Kingdom
- National Renal Complement Therapeutics Center, Royal Victoria Infirmary, Newcastle, United Kingdom
| | - Anna Richards
- Centre for Inflammation Research, Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Kevin J. Marchbank
- Translational and Clinical Research Institute, Newcastle University, Newcastle, United Kingdom
- National Renal Complement Therapeutics Center, Royal Victoria Infirmary, Newcastle, United Kingdom
| | - Matthew C. Pickering
- Centre for Inflammatory Disease, Imperial College London, London, United Kingdom
| | - Paul N. Barlow
- School of Chemistry, University of Edinburgh, Edinburgh, United Kingdom
- School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
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Horak M, Barackova P, Langore E, Netolicky J, Rivas-Ramirez P, Rehakova K. The Extracellular Domains of GluN Subunits Play an Essential Role in Processing NMDA Receptors in the ER. Front Neurosci 2021; 15:603715. [PMID: 33796003 PMCID: PMC8007919 DOI: 10.3389/fnins.2021.603715] [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: 09/07/2020] [Accepted: 02/19/2021] [Indexed: 12/31/2022] Open
Abstract
N-methyl-D-aspartate receptors (NMDARs) belong to a family of ionotropic glutamate receptors that play essential roles in excitatory neurotransmission and synaptic plasticity in the mammalian central nervous system (CNS). Functional NMDARs consist of heterotetramers comprised of GluN1, GluN2A-D, and/or GluN3A-B subunits, each of which contains four membrane domains (M1 through M4), an intracellular C-terminal domain, a large extracellular N-terminal domain composed of the amino-terminal domain and the S1 segment of the ligand-binding domain (LBD), and an extracellular loop between M3 and M4, which contains the S2 segment of the LBD. Both the number and type of NMDARs expressed at the cell surface are regulated at several levels, including their translation and posttranslational maturation in the endoplasmic reticulum (ER), intracellular trafficking via the Golgi apparatus, lateral diffusion in the plasma membrane, and internalization and degradation. This review focuses on the roles played by the extracellular regions of GluN subunits in ER processing. Specifically, we discuss the presence of ER retention signals, the integrity of the LBD, and critical N-glycosylated sites and disulfide bridges within the NMDAR subunits, each of these steps must pass quality control in the ER in order to ensure that only correctly assembled NMDARs are released from the ER for subsequent processing and trafficking to the surface. Finally, we discuss the effect of pathogenic missense mutations within the extracellular domains of GluN subunits with respect to ER processing of NMDARs.
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Affiliation(s)
- Martin Horak
- Department of Neurochemistry, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague, Czechia
| | - Petra Barackova
- Department of Neurochemistry, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague, Czechia
| | - Emily Langore
- Department of Neurochemistry, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague, Czechia
| | - Jakub Netolicky
- Department of Neurochemistry, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague, Czechia
| | - Paula Rivas-Ramirez
- Department of Neurochemistry, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague, Czechia
| | - Kristyna Rehakova
- Department of Neurochemistry, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague, Czechia
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Cheng Y, Pham AT, Kato T, Lim B, Moreau D, López-Andarias J, Zong L, Sakai N, Matile S. Inhibitors of thiol-mediated uptake. Chem Sci 2020; 12:626-631. [PMID: 34163793 PMCID: PMC8179002 DOI: 10.1039/d0sc05447j] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Ellman's reagent has caused substantial confusion and concern as a probe for thiol-mediated uptake because it is the only established inhibitor available but works neither efficiently nor reliably. Here we use fluorescent cyclic oligochalcogenides that enter cells by thiol-mediated uptake to systematically screen for more potent inhibitors, including epidithiodiketopiperazines, benzopolysulfanes, disulfide-bridged γ-turned peptides, heteroaromatic sulfones and cyclic thiosulfonates, thiosulfinates and disulfides. With nanomolar activity, the best inhibitors identified are more than 5000 times better than Ellman's reagent. Different activities found with different reporters reveal thiol-mediated uptake as a complex multitarget process. Preliminary results on the inhibition of the cellular uptake of pseudo-lentivectors expressing SARS-CoV-2 spike protein do not exclude potential of efficient inhibitors of thiol-mediated uptake for the development of new antivirals. Thiol-reactive inhibitors for the cellular entry of cyclic oligochalcogenide (COC) transporters and SARS-CoV-2 spike pseudo-lentivirus are reported.![]()
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Affiliation(s)
- Yangyang Cheng
- Department of Organic Chemistry, University of Geneva Geneva Switzerland http://www.unige.ch/sciences/chiorg/matile/ +41 22 379 6523
| | - Anh-Tuan Pham
- Department of Organic Chemistry, University of Geneva Geneva Switzerland http://www.unige.ch/sciences/chiorg/matile/ +41 22 379 6523
| | - Takehiro Kato
- Department of Organic Chemistry, University of Geneva Geneva Switzerland http://www.unige.ch/sciences/chiorg/matile/ +41 22 379 6523
| | - Bumhee Lim
- Department of Organic Chemistry, University of Geneva Geneva Switzerland http://www.unige.ch/sciences/chiorg/matile/ +41 22 379 6523
| | - Dimitri Moreau
- Department of Organic Chemistry, University of Geneva Geneva Switzerland http://www.unige.ch/sciences/chiorg/matile/ +41 22 379 6523
| | - Javier López-Andarias
- Department of Organic Chemistry, University of Geneva Geneva Switzerland http://www.unige.ch/sciences/chiorg/matile/ +41 22 379 6523
| | - Lili Zong
- Department of Organic Chemistry, University of Geneva Geneva Switzerland http://www.unige.ch/sciences/chiorg/matile/ +41 22 379 6523
| | - Naomi Sakai
- Department of Organic Chemistry, University of Geneva Geneva Switzerland http://www.unige.ch/sciences/chiorg/matile/ +41 22 379 6523
| | - Stefan Matile
- Department of Organic Chemistry, University of Geneva Geneva Switzerland http://www.unige.ch/sciences/chiorg/matile/ +41 22 379 6523
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Melatonin Can Modulate the Effect of Navitoclax (ABT-737) in HL-60 Cells. Antioxidants (Basel) 2020; 9:antiox9111143. [PMID: 33218059 PMCID: PMC7698880 DOI: 10.3390/antiox9111143] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 12/16/2022] Open
Abstract
Melatonin (N-acetyl-5-methoxytryptamine MEL) is an indolamine that has antioxidant, anti-inflammatory and anti-tumor properties. Moreover, MEL is capable of exhibiting both anti-apoptotic and pro-apoptotic effects. In the normal cells, MEL possesses antioxidant property and has an anti-apoptotic effect, while in the cancer cells it has pro-apoptotic action. We investigated the combined effect of MEL and navitoclax (ABT-737), which promotes cell death, on the activation of proliferation in acute promyelocytic leukemia on a cell model HL-60. The combined effect of these compounds leads to a reduction of the index of mitotic activity. The alterations in the level of anti- and pro-apoptotic proteins such as BclxL, Bclw, Mcl-1, and BAX, membrane potential, Ca2+ retention capacity, and ROS production under the combined action of MEL and ABT-737 were performed. We obtained that MEL in combination with ABT-737 decreased Ca2+ capacity, dropped membrane potential, increased ROS production, suppressed the expression of anti-apoptotic proteins such as BclxL, Bclw, and Mcl-1, and enhanced the expression of pro-apoptotic BAX. Since, MEL modulates autophagy and endoplasmic reticulum (ER) stress in cancer cells, the combined effect of MEL and ABT-737 on the expression of ER stress and autophagy markers was checked. The combined effect of MEL and ABT-737 (0.2 μM) increased the expression of protein kinase R (PKR)-like endoplasmic reticulum kinase (PERK), leading to a decrease in the level of binding immunoglobulin protein (BIP) followed by an increase in the level of C/EBP homologous protein (CHOP). In this condition, the expression of ERO1 decreased, which could lead to a decrease in the level of protein disulfide isomerase (PDI). The obtained data suggested that melatonin has potential usefulness in the treatment of cancer, where it is able to modulate ER stress, autophagy and apoptosis.
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Zhao J, Mejias J, Quentin M, Chen Y, de Almeida-Engler J, Mao Z, Sun Q, Liu Q, Xie B, Abad P, Favery B, Jian H. The root-knot nematode effector MiPDI1 targets a stress-associated protein (SAP) to establish disease in Solanaceae and Arabidopsis. THE NEW PHYTOLOGIST 2020; 228:1417-1430. [PMID: 32542658 DOI: 10.1111/nph.16745] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 06/02/2020] [Indexed: 05/11/2023]
Abstract
Large amounts of effectors are secreted by the oesophageal glands of plant-parasitic nematodes, but their molecular mode of action remains largely unknown. We characterized a Meloidogyne incognita protein disulphide isomerase (PDI)-like effector protein (MiPDI1) that facilitates nematode parasitism. In situ hybridization showed that MiPDI1 was expressed specifically in the subventral glands of M. incognita. It was significantly upregulated during parasitic stages. Immunolocalization demonstrated MiPDI1 secretion in planta during nematode migration and within the feeding cells. Host-induced silencing of the MiPDI1 gene affected the ability of the nematode to infect the host, whereas MiPDI1 expression in Arabidopsis increased susceptibility to M. incognita, providing evidence for a key role of MiPDI1 in M. incognita parasitism. Yeast two-hybrid, bimolecular fluorescence complementation and coimmunoprecipitation assays showed that MiPDI1 interacted with a tomato stress-associated protein (SlSAP12) orthologous to the redox-regulated AtSAP12, which plays an important role in plant responses to abiotic and biotic stresses. SAP12 silencing or knocking out in Nicotiana benthamiana and Arabidopsis increased susceptibility to M. incognita. Our results suggest that MiPDI1 acts as a pathogenicity factor promoting disease by fine-tuning SAP-mediated responses at the interface of redox signalling, defence and stress acclimation in Solanaceae and Arabidopsis.
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Affiliation(s)
- Jianlong Zhao
- Department of Plant Pathology and Key Laboratory of Pest Monitoring and Green Management of the Ministry of Agriculture, China Agricultural University, Beijing, 100193, China
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Science, Beijing, 100081, China
- INRAE, CNRS, ISA, Université Côte d'Azur, Sophia Antipolis, F-06903, France
| | - Joffrey Mejias
- INRAE, CNRS, ISA, Université Côte d'Azur, Sophia Antipolis, F-06903, France
| | - Michaël Quentin
- INRAE, CNRS, ISA, Université Côte d'Azur, Sophia Antipolis, F-06903, France
| | - Yongpan Chen
- Department of Plant Pathology and Key Laboratory of Pest Monitoring and Green Management of the Ministry of Agriculture, China Agricultural University, Beijing, 100193, China
- INRAE, CNRS, ISA, Université Côte d'Azur, Sophia Antipolis, F-06903, France
| | | | - Zhenchuan Mao
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Science, Beijing, 100081, China
| | - Qinghua Sun
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Science, Beijing, 100081, China
| | - Qian Liu
- Department of Plant Pathology and Key Laboratory of Pest Monitoring and Green Management of the Ministry of Agriculture, China Agricultural University, Beijing, 100193, China
| | - Bingyan Xie
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Science, Beijing, 100081, China
| | - Pierre Abad
- INRAE, CNRS, ISA, Université Côte d'Azur, Sophia Antipolis, F-06903, France
| | - Bruno Favery
- INRAE, CNRS, ISA, Université Côte d'Azur, Sophia Antipolis, F-06903, France
| | - Heng Jian
- Department of Plant Pathology and Key Laboratory of Pest Monitoring and Green Management of the Ministry of Agriculture, China Agricultural University, Beijing, 100193, China
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Alhammad R, Khunchai S, Tongmuang N, Limjindaporn T, Yenchitsomanus PT, Mutti L, Krstic-Demonacos M, Demonacos C. Protein disulfide isomerase A1 regulates breast cancer cell immunorecognition in a manner dependent on redox state. Oncol Rep 2020; 44:2406-2418. [PMID: 33125139 PMCID: PMC7610313 DOI: 10.3892/or.2020.7816] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 09/01/2020] [Indexed: 12/21/2022] Open
Abstract
Oxidoreductase protein disulphide isomerases (PDI) are involved in the regulation of a variety of biological processes including the modulation of endoplasmic reticulum (ER) stress, unfolded protein response (UPR), ER-mitochondria communication and the balance between pro-survival and pro-death pathways. In the current study the role of the PDIA1 family member in breast carcinogenesis was investigated by measuring ROS generation, mitochondrial membrane disruption, ATP production and HLA-G protein levels on the surface of the cellular membrane in the presence or absence of PDIA1. The results showed that this enzyme exerted pro-apoptotic effects in estrogen receptor (ERα)-positive breast cancer MCF-7 and pro-survival in triple negative breast cancer (TNBC) MDA-MB-231 cells. ATP generation was upregulated in PDIA1-silenced MCF-7 cells and downregulated in PDIA1-silenced MDA-MB-231 cells in a manner dependent on the cellular redox status. Furthermore, MCF-7 and MDA-MB-231 cells in the presence of PDIA1 expressed higher surface levels of the non-classical human leukocyte antigen (HLA-G) under oxidative stress conditions. Evaluation of the METABRIC datasets showed that low PDIA1 and high HLA-G mRNA expression levels correlated with longer survival in both ERα-positive and ERα-negative stage 2 breast cancer patients. In addition, analysis of the PDIA1 vs. the HLA-G mRNA ratio in the subgroup of the living stage 2 breast cancer patients exhibiting low PDIA1 and high HLA-G mRNA levels revealed that the longer the survival time of the ratio was high PDIA1 and low HLA-G mRNA and occurred predominantly in ERα-positive breast cancer patients whereas in the same subgroup of the ERα-negative breast cancer mainly this ratio was low PDIA1 and high HLA-G mRNA. Taken together these results provide evidence supporting the view that PDIA1 is linked to several hallmarks of breast cancer pathways including the process of antigen processing and presentation and tumor immunorecognition.
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Affiliation(s)
- Rashed Alhammad
- Faculty of Biology Medicine and Health, School of Health Sciences, Division of Pharmacy and Optometry, University of Manchester, Manchester M13 9PT, UK
| | - Sasiprapa Khunchai
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand
| | - Nopprarat Tongmuang
- Division of Molecular Medicine, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Thawornchai Limjindaporn
- Division of Molecular Medicine, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Pa-Thai Yenchitsomanus
- Division of Molecular Medicine, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Luciano Mutti
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA
| | | | - Constantinos Demonacos
- Faculty of Biology Medicine and Health, School of Health Sciences, Division of Pharmacy and Optometry, University of Manchester, Manchester M13 9PT, UK
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Ding Y, Huang L, Jiang Q, Zhu C. MicroRNAs as Important Regulators of Heat Stress Responses in Plants. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:11320-11326. [PMID: 32870674 DOI: 10.1021/acs.jafc.0c03597] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Heat stress is a major abiotic stress that significantly affects plant growth and productivity. Plants have, however, evolved complex adaptive mechanisms to cope with heat stress. MicroRNAs (miRNAs) are important molecules that regulate gene expression through the post-transcriptional degradation of target mRNA molecules or by repressing translation. Plant miRNAs play essential roles in development and a variety of stress responses. Recent advances in high-throughput sequencing technologies have enabled the identification and characterization of an increasing number of heat-responsive miRNAs in diverse plant species. Heat-regulated miRNAs combined with their target genes constitute large regulatory networks that control various metabolic pathways, including protein refolding, antioxidant defense, maintenance of photosynthetic systems, protection of reproductive tissues, regulation of flowering time, and miRNA biogenesis. In this review, we summarize the information acquired to date about the significance of plant miRNAs and their target genes in heat stress tolerance, thereby helping to identify the regulatory mechanisms that underlie heat stress responses in plants.
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Affiliation(s)
- Yanfei Ding
- Key Laboratory of Marine Food Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang 310018, People's Republic of China
| | - Lingzhi Huang
- Key Laboratory of Marine Food Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang 310018, People's Republic of China
| | - Qiong Jiang
- Key Laboratory of Marine Food Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang 310018, People's Republic of China
| | - Cheng Zhu
- Key Laboratory of Marine Food Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang 310018, People's Republic of China
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Martins L, Knuesting J, Bariat L, Dard A, Freibert SA, Marchand CH, Young D, Dung NHT, Voth W, Debures A, Saez-Vasquez J, Lemaire SD, Lill R, Messens J, Scheibe R, Reichheld JP, Riondet C. Redox Modification of the Iron-Sulfur Glutaredoxin GRXS17 Activates Holdase Activity and Protects Plants from Heat Stress. PLANT PHYSIOLOGY 2020; 184:676-692. [PMID: 32826321 PMCID: PMC7536686 DOI: 10.1104/pp.20.00906] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 08/03/2020] [Indexed: 05/02/2023]
Abstract
Heat stress induces misfolding and aggregation of proteins unless they are guarded by chaperone systems. Here, we examined the function of the glutaredoxin GRXS17, a member of thiol reductase families in the model plant Arabidopsis (Arabidopsis thaliana). GRXS17 is a nucleocytosolic monothiol glutaredoxin consisting of an N-terminal thioredoxin domain and three CGFS active-site motif-containing GRX domains that coordinate three iron-sulfur (Fe-S) clusters in a glutathione-dependent manner. As an Fe-S cluster-charged holoenzyme, GRXS17 is likely involved in the maturation of cytosolic and nuclear Fe-S proteins. In addition to its role in cluster biogenesis, GRXS17 presented both foldase and redox-dependent holdase activities. Oxidative stress in combination with heat stress induced loss of its Fe-S clusters followed by subsequent formation of disulfide bonds between conserved active-site cysteines in the corresponding thioredoxin domains. This oxidation led to a shift of GRXS17 to a high-molecular-weight complex and thus activated its holdase activity in vitro. Moreover, GRXS17 was specifically involved in plant tolerance to moderate high temperature and protected root meristematic cells from heat-induced cell death. Finally, GRXS17 interacted with a different set of proteins upon heat stress, possibly protecting them from heat injuries. Therefore, we propose that the Fe-S cluster enzyme GRXS17 is an essential guard that protects proteins against moderate heat stress, likely through a redox-dependent chaperone activity. We reveal the mechanism of an Fe-S cluster-dependent activity shift that converts the holoenzyme GRXS17 into a holdase, thereby preventing damage caused by heat stress.
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Affiliation(s)
- Laura Martins
- Laboratoire Génome et Développement des Plantes, Université Perpignan Via Domitia, F-66860 Perpignan, France
- Laboratoire Génome et Développement des Plantes, Centre National de la Recherche Scientifique, F-66860 Perpignan, France
| | - Johannes Knuesting
- Department of Plant Physiology, FB5, University of Osnabrück, D-49069 Osnabrueck, Germany
| | - Laetitia Bariat
- Laboratoire Génome et Développement des Plantes, Université Perpignan Via Domitia, F-66860 Perpignan, France
- Laboratoire Génome et Développement des Plantes, Centre National de la Recherche Scientifique, F-66860 Perpignan, France
| | - Avilien Dard
- Laboratoire Génome et Développement des Plantes, Université Perpignan Via Domitia, F-66860 Perpignan, France
- Laboratoire Génome et Développement des Plantes, Centre National de la Recherche Scientifique, F-66860 Perpignan, France
| | - Sven A Freibert
- Institut für Zytobiologie und Zytopathologie, Philipps-Universität, Marburg 35032, Germany
| | - Christophe H Marchand
- Institut de Biologie Physico-Chimique, Unité Mixte de Recherche 8226, Centre National de la Recherche Scientifique, Sorbonne Université, F-75005 Paris, France
| | - David Young
- VIB-VUB Center for Structural Biology, 1050 Brussels, Belgium
- Brussels Center for Redox Biology, 1050 Brussels, Belgium
- Structural Biology Brussels, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Nguyen Ho Thuy Dung
- VIB-VUB Center for Structural Biology, 1050 Brussels, Belgium
- Brussels Center for Redox Biology, 1050 Brussels, Belgium
- Structural Biology Brussels, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Wilhelm Voth
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, Michigan 48109
| | - Anne Debures
- Laboratoire Génome et Développement des Plantes, Université Perpignan Via Domitia, F-66860 Perpignan, France
- Laboratoire Génome et Développement des Plantes, Centre National de la Recherche Scientifique, F-66860 Perpignan, France
| | - Julio Saez-Vasquez
- Laboratoire Génome et Développement des Plantes, Université Perpignan Via Domitia, F-66860 Perpignan, France
- Laboratoire Génome et Développement des Plantes, Centre National de la Recherche Scientifique, F-66860 Perpignan, France
| | - Stéphane D Lemaire
- Institut de Biologie Physico-Chimique, Unité Mixte de Recherche 8226, Centre National de la Recherche Scientifique, Sorbonne Université, F-75005 Paris, France
- Institut de Biologie Paris-Seine, Laboratory of Computational and Quantitative Biology, Unité Mixte de Recherche 7238, Centre National de la Recherche Scientifique, Sorbonne Université, F-75005 Paris, France
| | - Roland Lill
- Institut für Zytobiologie und Zytopathologie, Philipps-Universität, Marburg 35032, Germany
| | - Joris Messens
- VIB-VUB Center for Structural Biology, 1050 Brussels, Belgium
- Brussels Center for Redox Biology, 1050 Brussels, Belgium
- Structural Biology Brussels, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Renate Scheibe
- Institut für Zytobiologie und Zytopathologie, Philipps-Universität, Marburg 35032, Germany
| | - Jean-Philippe Reichheld
- Laboratoire Génome et Développement des Plantes, Université Perpignan Via Domitia, F-66860 Perpignan, France
- Laboratoire Génome et Développement des Plantes, Centre National de la Recherche Scientifique, F-66860 Perpignan, France
| | - Christophe Riondet
- Laboratoire Génome et Développement des Plantes, Université Perpignan Via Domitia, F-66860 Perpignan, France
- Laboratoire Génome et Développement des Plantes, Centre National de la Recherche Scientifique, F-66860 Perpignan, France
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Green RS, Izac JR, Naimi WA, O'Bier N, Breitschwerdt EB, Marconi RT, Carlyon JA. Ehrlichia chaffeensis EplA Interaction With Host Cell Protein Disulfide Isomerase Promotes Infection. Front Cell Infect Microbiol 2020; 10:500. [PMID: 33072622 PMCID: PMC7538545 DOI: 10.3389/fcimb.2020.00500] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 08/11/2020] [Indexed: 12/19/2022] Open
Abstract
Ehrlichia chaffeensis is an obligate intracellular bacterium that invades monocytes to cause the emerging and potentially severe disease, monocytic ehrlichiosis. Ehrlichial invasion of host cells, a process that is essential for the bacterium's survival and pathogenesis, is incompletely understood. In this study, we identified ECH_0377, henceforth designated as EplA (E. chaffeensis PDI ligand A) as an E. chaffeensis adhesin that interacts with host cell protein disulfide isomerase (PDI) to mediate bacterial entry into host cells. EplA is an outer membrane protein that E. chaffeensis expresses during growth in THP-1 monocytic cells. Canine sera confirmed to be positive for exposure to Ehrlichia spp. recognized recombinant EplA, indicating that it is expressed during infection in vivo. EplA antiserum inhibited the bacterium's ability to infect monocytic cells. The EplA-PDI interaction was confirmed via co-immunoprecipitation. Treating host cell surfaces with antibodies that inhibit PDI and/or thioredoxin-1 thiol reductase activity impaired E. chaffeensis infection. Chemical reduction of host cell surfaces, but not bacterial surfaces with tris(2-carboxyethyl)phosphine (TCEP) restored ehrlichial infectivity in the presence of the PDI-neutralizing antibody. Antisera specific for EplA C-terminal residues 95-104 (EplA95−104) or outer membrane protein A amino acids 53-68 (OmpA53−68) reduced E. chaffeensis infection of THP-1 cells. Notably, TCEP rescued ehrlichial infectivity of bacteria that had been treated with anti-EplA95−104, but not anti-EcOmpA53−68. These results demonstrate that EplA contributes to E. chaffeensis infection of monocytic cells by engaging PDI and exploiting the enzyme's reduction of host cell surface disulfide bonds in an EplA C-terminus-dependent manner and identify EplA95−104 and EcOmpA53−68 as novel ehrlichial receptor binding domains.
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Affiliation(s)
- Ryan S Green
- Department of Microbiology and Immunology, Virginia Commonwealth University Medical Center, School of Medicine, Richmond, VA, United States
| | - Jerilyn R Izac
- Department of Microbiology and Immunology, Virginia Commonwealth University Medical Center, School of Medicine, Richmond, VA, United States
| | - Waheeda A Naimi
- Department of Microbiology and Immunology, Virginia Commonwealth University Medical Center, School of Medicine, Richmond, VA, United States
| | - Nathaniel O'Bier
- Department of Microbiology and Immunology, Virginia Commonwealth University Medical Center, School of Medicine, Richmond, VA, United States
| | - Edward B Breitschwerdt
- Department of Clinical Sciences and the Intracellular Pathogens Research Laboratory, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
| | - Richard T Marconi
- Department of Microbiology and Immunology, Virginia Commonwealth University Medical Center, School of Medicine, Richmond, VA, United States
| | - Jason A Carlyon
- Department of Microbiology and Immunology, Virginia Commonwealth University Medical Center, School of Medicine, Richmond, VA, United States
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48
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Kranz P, Sänger C, Wolf A, Baumann J, Metzen E, Baumann M, Göpelt K, Brockmeier U. Tumor cells rely on the thiol oxidoreductase PDI for PERK signaling in order to survive ER stress. Sci Rep 2020; 10:15299. [PMID: 32943707 PMCID: PMC7499200 DOI: 10.1038/s41598-020-72259-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 08/26/2020] [Indexed: 12/20/2022] Open
Abstract
Upon ER stress cells activate the unfolded protein response through PERK, IRE1 and ATF6. Remarkable effort has been made to delineate the downstream signaling of these three ER stress sensors after activation, but upstream regulation at the ER luminal site still remains mostly undefined. Here we report that the thiol oxidoreductase PDI is mandatory for activation of the PERK pathway in HEK293T as well as in human pancreatic, lung and colon cancer cells. Under ER stress, depletion of PDI selectively abrogated eIF2α phosphorylation, induction of ATF4, CHOP and even BiP. Furthermore, we could demonstrate that PDI prevented degradation of activated PERK by the 26S proteasome and therefore contributes to maintained PERK signaling. As a result of decreased PERK activity, PDI depleted cells showed an increased vulnerability to ER stress induced by chemicals or ionizing radiation in 2D as well as in 3D culture models. We conclude that PDI is an obligatory regulator of the PERK pathway with future therapy implications.
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Affiliation(s)
- Philip Kranz
- Institut für Physiologie, Universität Duisburg-Essen, Duisburg, Germany
| | | | - Alexandra Wolf
- Institut für Physiologie, Universität Duisburg-Essen, Duisburg, Germany
| | - Jennifer Baumann
- Institut für Physiologie, Universität Duisburg-Essen, Duisburg, Germany
| | - Eric Metzen
- Institut für Physiologie, Universität Duisburg-Essen, Duisburg, Germany
| | - Melanie Baumann
- Institut für Physiologie, Universität Duisburg-Essen, Duisburg, Germany
| | - Kirsten Göpelt
- Institut für Physiologie, Universität Duisburg-Essen, Duisburg, Germany
| | - Ulf Brockmeier
- Institut für Physiologie, Universität Duisburg-Essen, Duisburg, Germany. .,Department of Neurology, University Hospital Essen, University Duisburg-Essen, Duisburg, Germany.
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Thioredoxin-Related Transmembrane Proteins: TMX1 and Little Brothers TMX2, TMX3, TMX4 and TMX5. Cells 2020; 9:cells9092000. [PMID: 32878123 PMCID: PMC7563315 DOI: 10.3390/cells9092000] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 02/06/2023] Open
Abstract
The endoplasmic reticulum (ER) is site of synthesis and maturation of membrane and secretory proteins in eukaryotic cells. The ER contains more than 20 members of the Protein Disulfide Isomerase (PDI) family. These enzymes regulate formation, isomerization and disassembly of covalent bonds between cysteine residues. As such, PDIs ensure protein folding, which is required to attain functional and transport-competent structure, and protein unfolding, which facilitates dislocation of defective gene products across the ER membrane for ER-associated degradation (ERAD). The PDI family includes over a dozen of soluble members and few membrane-bound ones. Among these latter, there are five PDIs grouped in the thioredoxin-related transmembrane (TMX) protein family. In this review, we summarize the current knowledge on TMX1, TMX2, TMX3, TMX4 and TMX5, their structural features, regulation and roles in biogenesis and control of the mammalian cell’s proteome.
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50
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Pokkunuri ID, Lokhandwala MF, Banday AA. Protein disulfide isomerase inhibition impairs Keap1/Nrf2 signaling and mitochondrial function and induces apoptosis in renal proximal tubular cells. Am J Physiol Renal Physiol 2020; 319:F686-F696. [PMID: 32830535 DOI: 10.1152/ajprenal.00049.2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Renal proximal tubular apoptosis plays a critical role in kidney health and disease. However, cellular molecules that trigger renal apoptosis remain elusive. Here, we evaluated the effect of inhibiting protein disulfide isomerase (PDI), a critical thioredoxin chaperone protein, on apoptosis as well as the underlying mechanisms in human renal proximal tubular (HK2) cells. HK2 cells were transfected with PDI-specific siRNA in the absence and presence of an antioxidant, tempol. PDI siRNA transfection resulted in a decrease of ~70% in PDI protein expression and enzyme activity. PDI inhibition increased caspase-3 activity and induced profound cell apoptosis. Mitochondrial function, as assessed by mitochondrial cytochrome c levels, mitochondrial membrane potential, oxygen consumption, and ATP levels, was significantly reduced in PDI-inhibited cells. Also, PDI inhibition caused nuclear factor erythroid 2-related factor 2 (Nrf2; a redox-sensitive transcription factor) cytoplasmic sequestration, decreased superoxide dismutase and glutathione-S-transferase activities, and increased oxidative stress. In PDI-inhibited cells, tempol reduced apoptosis, caspase-3 activity, and oxidative stress and also restored Nrf2 nuclear translocation and mitochondrial function. Silencing Nrf2 in the cells abrogated the beneficial effect of tempol, whereas Kelch-like ECH-associated protein 1 (an Nrf2 regulatory protein) silencing protected cells from PDI inhibitory effects. Collectively, our data indicate that PDI inhibition diminishes Nrf2 nuclear translocation, causing oxidative stress that further triggers mitochondrial dysfunction and renal cell apoptosis. This study suggests an important role for PDI in renal cell apoptosis involving Nrf2 and mitochondrial dysfunction.
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Affiliation(s)
- Indira D Pokkunuri
- Heart and Kidney Institute, College of Pharmacy, University of Houston, Houston, Texas
| | - Mustafa F Lokhandwala
- Heart and Kidney Institute, College of Pharmacy, University of Houston, Houston, Texas
| | - Anees Ahmad Banday
- Heart and Kidney Institute, College of Pharmacy, University of Houston, Houston, Texas
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