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Giovannuzzi S, Bonardi A, Gratteri P, Nocentini A, Supuran CT. Discovery of the first-in-class potent and isoform-selective human carbonic anhydrase III inhibitors. J Enzyme Inhib Med Chem 2023; 38:2202360. [PMID: 37092262 PMCID: PMC10128460 DOI: 10.1080/14756366.2023.2202360] [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: 03/21/2023] [Revised: 04/04/2023] [Accepted: 04/07/2023] [Indexed: 04/25/2023] Open
Abstract
Considering the unrecognised physio-pathological role of human carbonic anhydrase III (hCA III), a structure-based drug design was set up to identify the first-in-class potent and selective inhibitors of this neglected isoform. hCA III targeting was planned considering a unique feature of its active site among the other hCA isoforms, i.e. the Leu198/Phe198 substitution which interferes with the binding of aromatic/heterocyclic sulfonamides and other inhibitors. Thus, new aliphatic primary sulfonamides possessing long and flexible (CH2)nSO2NH2 moieties were designed to coordinate the zinc(II) ion, bypassing the bulky Phe198 residue. They incorporate 1,2,3-triazole linkers which connect the tail moieties to the sulfonamide head, enhancing thus the contacts at the active site entrance. Some of these compounds act as nanomolar and selective inhibitors of hCA III over other isoforms. Docking/molecular dynamics simulations were used to investigate ligand/target interactions for these sulfonamides which might improve our understanding of the physio-pathological roles of hCA III.
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Affiliation(s)
- Simone Giovannuzzi
- NEUROFARBA Department, Pharmaceutical and Nutraceutical Section, University of Florence, Firenze, Italy
| | - Alessandro Bonardi
- NEUROFARBA Department, Laboratory of Molecular Modeling, Cheminformatics & QSAR, University of Florence, Firenze, Italy
| | - Paola Gratteri
- NEUROFARBA Department, Laboratory of Molecular Modeling, Cheminformatics & QSAR, University of Florence, Firenze, Italy
| | - Alessio Nocentini
- NEUROFARBA Department, Pharmaceutical and Nutraceutical Section, University of Florence, Firenze, Italy
- NEUROFARBA Department, Laboratory of Molecular Modeling, Cheminformatics & QSAR, University of Florence, Firenze, Italy
| | - Claudiu T. Supuran
- NEUROFARBA Department, Pharmaceutical and Nutraceutical Section, University of Florence, Firenze, Italy
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2
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Aspatwar A, Tolvanen MEE, Barker H, Syrjänen L, Valanne S, Purmonen S, Waheed A, Sly WS, Parkkila S. Carbonic Anhydrases in Metazoan Model Organisms: Molecules, Mechanisms, and Physiology. Physiol Rev 2022; 102:1327-1383. [PMID: 35166161 DOI: 10.1152/physrev.00018.2021] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
During the past three decades, mice, zebrafish, fruit flies, and Caenorhabditis elegans have been the primary model organisms used for the study of various biological phenomena. These models have also been adopted and developed to investigate the physiological roles of carbonic anhydrases (CAs) and carbonic anhydrase-related proteins (CARPs). These proteins belong to eight CA families and are identified by Greek letters: α, β, γ, δ, ζ, η, θ, and ι. Studies using model organisms have focused on two CA families, α-CAs and β-CAs, which are expressed in both prokaryotic and eukaryotic organisms with species-specific distribution patterns and unique functions. This review covers the biological roles of CAs and CARPs in light of investigations performed in model organisms. Functional studies demonstrate that CAs are not only linked to the regulation of pH homeostasis, the classical role of CAs but also contribute to a plethora of previously undescribed functions.
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Affiliation(s)
- Ashok Aspatwar
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | | | - Harlan Barker
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Fimlab Ltd and TAYS Cancer Centre, Tampere University Hospital, Tampere, Finland
| | - Leo Syrjänen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Otorhinolaryngology, Tampere University Hospital, Tampere, Finland
| | - Susanna Valanne
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Sami Purmonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Abdul Waheed
- Department of Biochemistry and Molecular Biology, Edward A. Doisy Research Center, Saint Louis University School of Medicine, St. Louis, MO, United States
| | - William S Sly
- Department of Biochemistry and Molecular Biology, Edward A. Doisy Research Center, Saint Louis University School of Medicine, St. Louis, MO, United States
| | - Seppo Parkkila
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Fimlab Ltd and TAYS Cancer Centre, Tampere University Hospital, Tampere, Finland
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Regulation of the Dimerization and Activity of SARS-CoV-2 Main Protease through Reversible Glutathionylation of Cysteine 300. mBio 2021; 12:e0209421. [PMID: 34399606 PMCID: PMC8406260 DOI: 10.1128/mbio.02094-21] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent for coronavirus disease 2019 (COVID-19), encodes two proteases required for replication. The main protease (Mpro), encoded as part of two polyproteins, pp1a and pp1ab, is responsible for 11 different cleavages of these viral polyproteins to produce mature proteins required for viral replication. Mpro is therefore an attractive target for therapeutic interventions. Certain proteins in cells under oxidative stress undergo modification of reactive cysteines. We show Mpro is susceptible to glutathionylation, leading to inhibition of dimerization and activity. Activity of glutathionylated Mpro could be restored with reducing agents or glutaredoxin. Analytical studies demonstrated that glutathionylated Mpro primarily exists as a monomer and that modification of a single cysteine with glutathione is sufficient to block dimerization and inhibit its activity. Gel filtration studies as well as analytical ultracentrifugation confirmed that glutathionylated Mpro exists as a monomer. Tryptic and chymotryptic digestions of Mpro as well as experiments using a C300S Mpro mutant revealed that Cys300, which is located at the dimer interface, is a primary target of glutathionylation. Moreover, Cys300 is required for inhibition of activity upon Mpro glutathionylation. These findings indicate that Mpro dimerization and activity can be regulated through reversible glutathionylation of a non-active site cysteine, Cys300, which itself is not required for Mpro activity, and provides a novel target for the development of agents to block Mpro dimerization and activity. This feature of Mpro may have relevance to the pathophysiology of SARS-CoV-2 and related bat coronaviruses.
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4
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Ozsoy HZ. Anticonvulsant Effects of Carbonic Anhydrase Inhibitors: The Enigmatic Link Between Carbonic Anhydrases and Electrical Activity of the Brain. Neurochem Res 2021; 46:2783-2799. [PMID: 34226984 DOI: 10.1007/s11064-021-03390-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 06/08/2021] [Accepted: 06/25/2021] [Indexed: 10/20/2022]
Abstract
Acetazolamide (ACZ), a sulfonamide carbonic anhydrase (CA) inhibitor, was first introduced into medical use as a diuretic in the1950s. Shortly after its introduction, its antiglaucoma and anticonvulsant properties came to light. Subsequently, studies of ACZ have explored a plethora of neurophysiological functions of CAs in the CNS. In addition, topiramate (TPM) and zonisamide (ZNS), which were developed as antiepileptic drugs (AEDs) in the1990s, were found to have the ability to inhibit CAs. How CA inhibition prevents seizures is elusive. CA expression and activity are extensively detected in neurons, the choroid plexus, oligodendrocytes and astrocytes. TPM and ZNS appear to produce multimodal actions in the CNS as well as CA inhibition unlike ACZ. Nonetheless, CA inhibitors share some common denominators. They do not only affect the fine equilibrium among CO2, H+ and HCO3- in the extraneuronal and intraneuronal milieu, but also modulate the activity of ligand gated ion channels at the neuronal level such as GABA-A signaling through inhibiting CA-replenished HCO3- efflux. In addition, there are studies reporting their ability to alter Ca2+ kinetics through modulation of ligand gated Ca2+ channels, voltage gated Ca2+ channels (VGCC) or Ca2+-induced Ca2+ release channels (CICRC). The present study will review the involvement of CAs in the formation of epileptogenesis, and likely mechanisms by which CA inhibitors suppress the electrical activity of the brain. The common properties of CA inhibitors provide some clues for a possible link among metabolism, CAs, Ca2+ and GABA signaling.
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5
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Emerging role of carbonic anhydrase inhibitors. Clin Sci (Lond) 2021; 135:1233-1249. [PMID: 34013961 DOI: 10.1042/cs20210040] [Citation(s) in RCA: 102] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/05/2021] [Accepted: 05/07/2021] [Indexed: 02/07/2023]
Abstract
Inhibition of carbonic anhydrase (CA, EC 4.2.1.1) was clinically exploited for decades, as most modern diuretics were obtained considering as lead molecule acetazolamide, the prototypical CA inhibitor (CAI). The discovery and characterization of multiple human CA (hCA) isoforms, 15 of which being known today, led to new applications of their inhibitors. They include widely clinically used antiglaucoma, antiepileptic and antiobesity agents, antitumor drugs in clinical development, as well as drugs for the management of acute mountain sickness and idiopathic intracranial hypertension (IIH). Emerging roles of several CA isoforms in areas not generally connected to these enzymes were recently documented, such as in neuropathic pain, cerebral ischemia, rheumatoid arthritis, oxidative stress and Alzheimer's disease. Proof-of-concept studies thus emerged by using isoform-selective inhibitors, which may lead to new clinical applications in such areas. Relevant preclinical models are available for these pathologies due to the availability of isoform-selective CAIs for all human isoforms, belonging to novel classes of compounds, such as coumarins, sulfocoumarins, dithiocarbamates, benzoxaboroles, apart the classical sulfonamide inhibitors. The inhibition of CAs from pathogenic bacteria, fungi, protozoans or nematodes started recently to be considered for obtaining anti-infectives with a new mechanism of action.
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Davis DA, Bulut H, Shrestha P, Yaparla A, Jaeger HK, Hattori SI, Wingfield PT, Mitsuya H, Yarchoan R. Regulation of the Dimerization and Activity of SARS-CoV-2 Main Protease through Reversible Glutathionylation of Cysteine 300. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2021. [PMID: 33851157 PMCID: PMC8043447 DOI: 10.1101/2021.04.09.439169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
SARS-CoV-2 encodes main protease (Mpro), an attractive target for therapeutic interventions. We show Mpro is susceptible to glutathionylation leading to inhibition of dimerization and activity. Activity of glutathionylated Mpro could be restored with reducing agents or glutaredoxin. Analytical studies demonstrated that glutathionylated Mpro primarily exists as a monomer and that a single modification with glutathione is sufficient to block dimerization and loss of activity. Proteolytic digestions of Mpro revealed Cys300 as a primary target of glutathionylation, and experiments using a C300S Mpro mutant revealed that Cys300 is required for inhibition of activity upon Mpro glutathionylation. These findings indicate that Mpro dimerization and activity can be regulated through reversible glutathionylation of Cys300 and provides a novel target for the development of agents to block Mpro dimerization and activity. This feature of Mpro may have relevance to human disease and the pathophysiology of SARS-CoV-2 in bats, which develop oxidative stress during flight.
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Affiliation(s)
- David A Davis
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892
| | - Haydar Bulut
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892
| | - Prabha Shrestha
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892
| | - Amulya Yaparla
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892
| | - Hannah K Jaeger
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892
| | - Shin-Ichiro Hattori
- Department of Refractory Viral Infections, National Center for Global Health and Medicine Research Institute, Tokyo, Japan
| | - Paul T Wingfield
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Hiroaki Mitsuya
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892.,Department of Refractory Viral Infections, National Center for Global Health and Medicine Research Institute, Tokyo, Japan
| | - Robert Yarchoan
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892
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7
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Fan Y, Li X, Tian L, Wang J. Identification of a Metabolism-Related Signature for the Prediction of Survival in Endometrial Cancer Patients. Front Oncol 2021; 11:630905. [PMID: 33763366 PMCID: PMC7982602 DOI: 10.3389/fonc.2021.630905] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 01/27/2021] [Indexed: 12/13/2022] Open
Abstract
Objective Endometrial cancer (EC) is one of the most common gynecologic malignancies. The present study aims to identify a metabolism-related biosignature for EC and explore the molecular immune-related mechanisms underlying the tumorigenesis of EC. Methods Transcriptomics and clinical data of EC were retrieved from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases. Common differentially expressed metabolism-related genes were extracted and a risk signature was identified by using the least absolute shrinkage and selection operator (LASSO) regression analysis method. A nomogram integrating the prognostic model and the clinicopathological characteristics was established and validated by a cohort of clinical EC patients. Furthermore, the immune and stromal scores were observed and the infiltration of immune cells in EC cells was analyzed. Results Six genes, including CA3, HNMT, PHGDH, CD38, PSAT1, and GPI, were selected for the development of the risk prediction model. The Kaplan-Meier curve indicated that patients in the low-risk group had considerably better overall survival (OS) (P = 7.874e-05). Then a nomogram was constructed and could accurately predict the OS (AUC = 0.827, 0.821, 0.845 at 3-, 5-, and 7-year of OS). External validation with clinical patients showed that patients with low risk scores had a longer OS (p = 0.04). Immune/stromal scores and infiltrating density of six types of immune cells were lower in high-risk group. Conclusions In summary, our work provided six potential metabolism-related biomarkers as well as a nomogram for the prognosis of EC patients, and explored the underlying mechanism involved in the progression of EC.
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Affiliation(s)
- Yuan Fan
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing, China
| | - Xingchen Li
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing, China
| | - Li Tian
- Reproductive Medical Center, Peking University People's Hospital, Beijing, China
| | - Jianliu Wang
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing, China
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8
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Kumar S, Rulhania S, Jaswal S, Monga V. Recent advances in the medicinal chemistry of carbonic anhydrase inhibitors. Eur J Med Chem 2021; 209:112923. [PMID: 33121862 DOI: 10.1016/j.ejmech.2020.112923] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 10/05/2020] [Accepted: 10/07/2020] [Indexed: 02/08/2023]
Abstract
Carbonic anhydrase (CA, EC 4.2.1.1) is an enzyme and a very omnipresent zinc metalloenzyme which catalyzed the reversible hydration and dehydration of carbon dioxide and bicarbonate; a reaction which plays a crucial role in many physiological and pathological processes. Carbonic anhydrase is present in human (h) with sixteen different isoforms ranging from hCA I-hCA XV. All these isoforms are widely distributed in different tissues/organs and are associated with a range of pivotal physiological activities. Due to their involvement in various physiological roles, inhibitors of different human isoforms of carbonic anhydrase have found clinical applications for the treatment of various diseases including glaucoma, retinopathy, hemolytic anemia, epilepsy, obesity, and cancer. However, clinically used inhibitors of CA (acetazolamide, brinzolamide, dorzolamide, etc.) are not selective causing the undesirable side effects. One of the major hurdles in the design and development of carbonic anhydrase inhibitors is the lack of balanced isoform selectivity which thrived to new chemotypes. In this review, we have compiled the recent strategies of various researchers related to the development of carbonic anhydrase inhibitors belonging to different structural classes like pyrimidine, pyrazoline, selenourea, isatin, indole, etc. This review also summarizes the structure-activity relationships, analysis of isoform selectivity including mechanistic and in silico studies to afford ideas and to provide focused direction for the design and development of novel isoform-selective carbonic anhydrase inhibitors with therapeutic implications.
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Affiliation(s)
- Shubham Kumar
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, GT Road, Ghal Kalan, Moga, 142001, Punjab, India
| | - Sandeep Rulhania
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, GT Road, Ghal Kalan, Moga, 142001, Punjab, India
| | - Shalini Jaswal
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, GT Road, Ghal Kalan, Moga, 142001, Punjab, India
| | - Vikramdeep Monga
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, GT Road, Ghal Kalan, Moga, 142001, Punjab, India.
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9
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A comparison of the chemical biology of hydropersulfides (RSSH) with other protective biological antioxidants and nucleophiles. Nitric Oxide 2020; 107:46-57. [PMID: 33253886 DOI: 10.1016/j.niox.2020.11.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/05/2020] [Accepted: 11/20/2020] [Indexed: 12/14/2022]
Abstract
The hydropersulfide (RSSH) functional group has received significant recent interest due to its unique chemical properties that set it apart from other biological species. The chemistry of RSSH predicts that one possible biological role may be as a protectant against cellular oxidative and electrophilic stress. That is, RSSH has reducing and nucleophilic properties that may combat the potentially destructive biochemistry of toxicologically relevant oxidants and electrophiles. However, there are currently numerous other molecules that have established roles in this regard. For example, ascorbate and tocopherols are potent antioxidants that quench deleterious oxidative reactions and glutathione (GSH) is a well-established and highly prevalent biological protectant against electrophile toxicity. Thus, in order to begin to understand the possible role of RSSH species as protectants against oxidative/electrophilic stress, the inherent chemical properties of RSSH versus these other protectants will be discussed and contrasted.
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10
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Okuyan D, Aydogan Turkoglu S, Kockar F. Carbonic anhydrase III is a new target of HIF1α in prostate cancer model. Gene 2020; 762:145034. [PMID: 32777521 DOI: 10.1016/j.gene.2020.145034] [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] [Received: 04/05/2020] [Revised: 07/09/2020] [Accepted: 08/04/2020] [Indexed: 12/30/2022]
Abstract
Carbonic Anhydrase III (CAIII) belongs to a member of the alpha Carbonic Anhydrase (CA) family. Although some CA members are strongly up-regulated by HIF1-α, it is not known about the transcriptional regulation of CAIII in prostate cancer cells, PCa. Therefore, we aimed to identify regulatory regions important for the regulation of CAIII gene under hypoxic conditions in human prostate cancer cells (PC3). The present study, for the first time, demonstrated that the chemically mimicked hypoxic condition led to the induced CAIII mRNA and protein expression in prostate cancer cells. Transcriptional regulation of CAIII was investigated by transient transfection assay that indicates that the most active promoter activity was in the region of P2 -699/+86. Hypoxic condition also upregulates the basal activity of for P1;-941/+86 and P2;-699/+86 constructs containing putative Hypoxia Response Element (HRE) region located in -268/-252. EMSA analysis of HRE located in -268/-252 bases, showed one DNA-protein binding complexes. Competition assays indicated this complex is resulted from HIF1α interactions. In addition, site-directed mutagenesis of potential HIF1α binding sites diminished a DNA-protein complex. These findings suggest that CAIII is a hypoxia-regulated gene and valuable for targeting of prostate cancer tumors in hypoxic condition.
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Affiliation(s)
- Derya Okuyan
- Balikesir University, Faculty of Science and Literature, Department of Molecular Biology and Genetics, Balıkesir, Turkey
| | - Sumeyye Aydogan Turkoglu
- Balikesir University, Faculty of Science and Literature, Department of Molecular Biology and Genetics, Balıkesir, Turkey
| | - Feray Kockar
- Balikesir University, Faculty of Science and Literature, Department of Molecular Biology and Genetics, Balıkesir, Turkey.
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11
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Lionetto MG, Caricato R, Giordano ME. Carbonic Anhydrase Sensitivity to Pesticides: Perspectives for Biomarker Development. Int J Mol Sci 2020; 21:ijms21103562. [PMID: 32443560 PMCID: PMC7278955 DOI: 10.3390/ijms21103562] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/13/2020] [Accepted: 05/17/2020] [Indexed: 02/06/2023] Open
Abstract
Carbonic anhydrase (CA) is a widespread metalloenzyme playing a pivotal role in several physiological processes. Many studies have demonstrated the in vitro and in vivo sensitivity of CA to the exposure to several classes of pesticides in both humans and wildlife. This review aims to analyze and to discuss the literature available in this field, providing a comprehensive view useful to foresee perspectives for the development of novel CA-based pesticide biomarkers. The analysis of the available data highlighted the ability of several pesticide molecules to interact directly with the enzyme in humans and wildlife and to inhibit CA activity in vitro and in vivo, with possible alterations of key physiological functions. The analysis disclosed key areas of further research and, at the same time, identified some perspectives for the development of novel CA-based sensitive biomarkers to pesticide exposure, suitable to be used in several fields from human biomonitoring in occupational and environmental medicine to environmental monitoring on non-target species.
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12
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Strunk D, Schmidt-Pogoda A, Beuker C, Milles LS, Korsukewitz C, Meuth SG, Minnerup J. Biomarkers in Vasculitides of the Nervous System. Front Neurol 2019; 10:591. [PMID: 31244756 PMCID: PMC6562258 DOI: 10.3389/fneur.2019.00591] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Accepted: 05/20/2019] [Indexed: 12/13/2022] Open
Abstract
Besides being affected by the rare and severe primary angiitis of the central nervous system (PACNS) the nervous system is also affected by primary systemic vasculitides (PSV). In contrast to PACNS, PSV affect not only the central but also the peripheral nervous system, resulting in a large array of potential symptoms. Given the high burden of disease, difficulties in distinguishing between differential diagnoses, and incomplete pathophysiological insights, there is an urgent need for additional precise diagnostic tools to enable an earlier diagnosis and initiation of effective treatments. Methods available to date, such as inflammatory markers, antibodies, cerebrospinal fluid (CSF) analysis, imaging, and biopsy, turn out to be insufficient to meet all current challenges. We highlight the use of biomarkers as an approach to extend current knowledge and, ultimately, improve patient management. Biomarkers are considered to be useful for disease diagnosis and monitoring, for predicting response to treatment, and for prognosis in clinical practice, as well as for establishing outcome parameters in clinical trials. In this article, we review the recent literature on biomarkers which have been applied in the context of different types of nervous system vasculitides including PACNS, giant-cell arteritis, Takayasu's arteritis, polyarteritis nodosa, ANCA (anti-neutrophil cytoplasm antibody)-associated vasculitides, cryoglobulinemic vasculitis, IgA vasculitis, and Behçet's disease. Overall, the majority of biomarkers is not specific for vasculitides of the nervous system.
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Affiliation(s)
- Daniel Strunk
- Department of Neurology, Institute for Translational Neurology, University of Münster, Münster, Germany
| | - Antje Schmidt-Pogoda
- Department of Neurology, Institute for Translational Neurology, University of Münster, Münster, Germany
| | - Carolin Beuker
- Department of Neurology, Institute for Translational Neurology, University of Münster, Münster, Germany
| | - Lennart S Milles
- Department of Neurology, Institute for Translational Neurology, University of Münster, Münster, Germany
| | - Catharina Korsukewitz
- Department of Neurology, Institute for Translational Neurology, University of Münster, Münster, Germany
| | - Sven G Meuth
- Department of Neurology, Institute for Translational Neurology, University of Münster, Münster, Germany
| | - Jens Minnerup
- Department of Neurology, Institute for Translational Neurology, University of Münster, Münster, Germany
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13
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Pereira CM, de Carvalho AC, da Silva FR, Melendez ME, Lessa RC, Andrade VCC, Kowalski LP, Vettore AL, Carvalho AL. In vitro and in silico validation of CA3 and FHL1 downregulation in oral cancer. BMC Cancer 2018; 18:193. [PMID: 29454310 PMCID: PMC5816396 DOI: 10.1186/s12885-018-4077-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Accepted: 01/29/2018] [Indexed: 12/31/2022] Open
Abstract
Background Aberrant methylation is a frequent event in oral cancer. Methods In order to better characterize these alterations, a search for genes downregulated by aberrant methylation in oral squamous cell carcinoma (OSCC) was conducted through the mining of ORESTES dataset. Findings were further validated in OSCC cell lines and patients’ samples and confirmed using TCGA data. Differentially expressed genes were identified in ORESTES libraries and validated in vitro using RT-PCR in HNSCC cell-lines and OSCC tumor samples. Further confirmation of these results was performed using mRNA expression and methylation data from The Cancer Genome Atlas (TCGA) data. Results From the set of genes selected for validation, CA3 and FHL1 were downregulated in 60% (12/20) and 75% (15/20) of OSCC samples, respectively, and in HNSCC cell lines. The treatment of cell lines JHU-13 and FaDu with the demethylating agent 5'-aza-dC was efficient in restoring CA3 and FHL1 expression. TCGA expression and methylation data on OSCC confirms the downregulation of these genes in OSCC samples and also suggests that expression of CA3 and FHL1 is probably regulated by methylation. The downregulation of CA3 and FHL1 observed in silico was validated in HNSCC cell lines and OSCC samples, showing the feasibility of integrating different datasets to select differentially expressed genes in silico. Conclusions These results showed that the downregulation of CA3 and FHL1 data observed in the ORESTES libraries was validated in HNSCC cell lines and OSCC samples and in a large cohort of samples from the TCGA database. Moreover, it suggests that expression of CA3 and FHL1 could probably be regulated by methylation having an important role the oral carcinogenesis. Electronic supplementary material The online version of this article (10.1186/s12885-018-4077-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Cláudia Maria Pereira
- Department of Head and Neck Surgery, A. C. Camargo Cancer Hospital, São Paulo, Brazil.,Laboratory of Cancer Genetics, Ludwig Institute for Cancer Research, Sao Paulo, Branch, Brazil
| | - Ana Carolina de Carvalho
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil.,Department of Science Biology, Universidade Federal de São Paulo, UNIFESP, Diadema, Brazil
| | | | | | - Roberta Cardim Lessa
- Department of Head and Neck Surgery, A. C. Camargo Cancer Hospital, São Paulo, Brazil.,Laboratory of Cancer Genetics, Ludwig Institute for Cancer Research, Sao Paulo, Branch, Brazil
| | | | - Luiz Paulo Kowalski
- Department of Head and Neck Surgery, A. C. Camargo Cancer Hospital, São Paulo, Brazil
| | - André L Vettore
- Laboratory of Cancer Genetics, Ludwig Institute for Cancer Research, Sao Paulo, Branch, Brazil.,Department of Science Biology, Universidade Federal de São Paulo, UNIFESP, Diadema, Brazil
| | - André Lopes Carvalho
- Department of Head and Neck Surgery, A. C. Camargo Cancer Hospital, São Paulo, Brazil. .,Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil. .,Department of Head and Neck Surgery, Barretos Cancer Hospital, Barretos, São Paulo, Brazil.
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14
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Brandstaedter C, Fritz‐Wolf K, Weder S, Fischer M, Hecker B, Rahlfs S, Becker K. Kinetic characterization of wild‐type and mutant human thioredoxin glutathione reductase defines its reaction and regulatory mechanisms. FEBS J 2017; 285:542-558. [DOI: 10.1111/febs.14357] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 11/20/2017] [Accepted: 12/05/2017] [Indexed: 01/14/2023]
Affiliation(s)
- Christina Brandstaedter
- Biochemistry and Molecular Biology Interdisciplinary Research Center Justus Liebig University Giessen Germany
| | - Karin Fritz‐Wolf
- Biochemistry and Molecular Biology Interdisciplinary Research Center Justus Liebig University Giessen Germany
- Max‐Planck Institute for Medical Research Heidelberg Germany
| | - Stine Weder
- Biochemistry and Molecular Biology Interdisciplinary Research Center Justus Liebig University Giessen Germany
| | - Marina Fischer
- Biochemistry and Molecular Biology Interdisciplinary Research Center Justus Liebig University Giessen Germany
| | - Beate Hecker
- Biochemistry and Molecular Biology Interdisciplinary Research Center Justus Liebig University Giessen Germany
| | - Stefan Rahlfs
- Biochemistry and Molecular Biology Interdisciplinary Research Center Justus Liebig University Giessen Germany
| | - Katja Becker
- Biochemistry and Molecular Biology Interdisciplinary Research Center Justus Liebig University Giessen Germany
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15
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Mitra A, Muralidharan M, Srivastava D, Das R, Bhat V, Mandal AK. Assessment of Cysteine Reactivity of Human Hemoglobin at Its Residue Level: A Mass Spectrometry-Based Approach. Hemoglobin 2017; 41:300-305. [PMID: 29210301 DOI: 10.1080/03630269.2017.1399905] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
In general, the reactivity of cysteine residues of proteins is measured by 5,5'-dithiobis(2-nitrobenzoic acid) (DTNB) kinetics using spectrophotometry. Proteins with several cysteine residues may exhibit varying DTNB kinetics but residue level information can only be obtained with the prior knowledge of their three-dimensional structure. However, this method is limited in its application to the proteins containing chromophores having overlapping absorption profile with 2-nitro-5-thiobenzoic acid, such as hemoglobin (Hb). Additionally, this method is incapable of assigning cysteine reactivity at the residue levels of proteins with unknown crystal structures. However, a mass spectrometry (MS)-based platform might provide a solution to these problems. In the present study, alkylation kinetics of cysteine residues of adult human Hb (Hb A; α2β2) and sickle cell Hb (Hb S; HBB: c.20A>T) were investigated using matrix-assisted laser desorption/ionization (MALDI) MS. Differential site-specific reactivities of cysteine residues of Hb were investigated using alkylation kinetics with iodoacetamide (IAM). The observed reactivities corroborated well with the differential surface accessibilities of cysteine residues in the crystal structures of human Hb. The proposed method might be used to investigate cysteine reactivities of all the genetic and post-translational variants of Hb discovered to date. In addition, this method can be extended to explore cysteine reactivities of proteins, irrespective of the presence of chromophores and availability of crystal structures.
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Affiliation(s)
- Amrita Mitra
- a Clinical Proteomics Unit, Division of Molecular Medicine , St. John's Research Institute, St. John's National Academy of Health Sciences , Koramangala, Bangalore , India
| | - Monita Muralidharan
- a Clinical Proteomics Unit, Division of Molecular Medicine , St. John's Research Institute, St. John's National Academy of Health Sciences , Koramangala, Bangalore , India
| | - Deepsikha Srivastava
- a Clinical Proteomics Unit, Division of Molecular Medicine , St. John's Research Institute, St. John's National Academy of Health Sciences , Koramangala, Bangalore , India
| | - Rajdeep Das
- a Clinical Proteomics Unit, Division of Molecular Medicine , St. John's Research Institute, St. John's National Academy of Health Sciences , Koramangala, Bangalore , India
| | - Vijay Bhat
- b Department of Biochemistry , Manipal Hospital Diagnostic Services, Manipal Hospital , Bangalore , India
| | - Amit K Mandal
- a Clinical Proteomics Unit, Division of Molecular Medicine , St. John's Research Institute, St. John's National Academy of Health Sciences , Koramangala, Bangalore , India
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16
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Shi C, Uda Y, Dedic C, Azab E, Sun N, Hussein AI, Petty CA, Fulzele K, Mitterberger-Vogt MC, Zwerschke W, Pereira R, Wang K, Pajevic PD. Carbonic anhydrase III protects osteocytes from oxidative stress. FASEB J 2017; 32:440-452. [PMID: 28928248 DOI: 10.1096/fj.201700485rr] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 09/05/2017] [Indexed: 12/26/2022]
Abstract
Osteocytes are master orchestrators of bone remodeling; they control osteoblast and osteoclast activities both directly via cell-to-cell communication and indirectly via secreted factors, and they are the main postnatal source of sclerostin and RANKL (receptor activator of NF-kB ligand), two regulators of osteoblast and osteoclast function. Despite progress in understanding osteocyte biology and function, much remains to be elucidated. Recently developed osteocytic cell lines-together with new genome editing tools-has allowed a closer look at the biology and molecular makeup of these cells. By using single-cell cloning, we identified genes that are associated with high Sost/sclerostin expression and analyzed their regulation and function. Unbiased transcriptome analysis of high- vs. low-Sost/sclerostin-expressing cells identified known and novel genes. Dmp1 (dentin matrix protein 1), Dkk1 (Dickkopf WNT signaling pathway inhibitor 1), and Phex were among the most up-regulated known genes, whereas Srpx2, Cd200, and carbonic anhydrase III (CAIII) were identified as novel markers of differentiated osteocytes. Aspn, Enpp2, Robo2, Nov, and Serpina3g were among the transcripts that were most significantly suppressed in high-Sost cells. Considering that CAII was recently identified as being regulated by Sost/sclerostin and capable of controlling mineral homeostasis, we focused our attention on CAIII. Here, we report that CAIII is highly expressed in osteocytes, is regulated by parathyroid hormone both in vitro and in vivo, and protects osteocytes from oxidative stress.-Shi, C., Uda, Y., Dedic, C., Azab, E., Sun, N., Hussein, A. I., Petty, C. A., Fulzele, K., Mitterberger-Vogt, M. C., Zwerschke, W., Pereira, R., Wang, K., Divieti Pajevic, P. Carbonic anhydrase III protects osteocytes from oxidative stress.
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Affiliation(s)
- Chao Shi
- Department of Orthopaedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, Massachusetts, USA
| | - Yuhei Uda
- Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, Massachusetts, USA
| | - Christopher Dedic
- Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, Massachusetts, USA
| | - Ehab Azab
- Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, Massachusetts, USA
| | - Ningyuan Sun
- Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, Massachusetts, USA
| | - Amira I Hussein
- Department of Orthopedics, School of Medicine, Boston University, Boston, Massachusetts, USA
| | - Christopher A Petty
- Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, Massachusetts, USA
| | - Keertik Fulzele
- Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, Massachusetts, USA
| | | | - Werner Zwerschke
- Cell Metabolism and Differentiation Research Group, University of Innsbruck, Innsbruck, Austria
| | - Renata Pereira
- David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Kunzheng Wang
- Department of Orthopaedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China;
| | - Paola Divieti Pajevic
- Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, Massachusetts, USA;
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17
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Mohammad HK, Alzweiri MH, Khanfar MA, Al-Hiari YM. 6-Substituted nicotinic acid analogues, potent inhibitors of CAIII, used as therapeutic candidates in hyperlipidemia and cancer. Med Chem Res 2017. [DOI: 10.1007/s00044-017-1825-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Wible RS, Sutter TR. Soft Cysteine Signaling Network: The Functional Significance of Cysteine in Protein Function and the Soft Acids/Bases Thiol Chemistry That Facilitates Cysteine Modification. Chem Res Toxicol 2017; 30:729-762. [DOI: 10.1021/acs.chemrestox.6b00428] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Ryan S. Wible
- Department
of Chemistry, ‡Department of Biological Sciences, and §W. Harry Feinstone Center for Genomic
Research, University of Memphis, 3700 Walker Avenue, Memphis, Tennessee 38152-3370, United States
| | - Thomas R. Sutter
- Department
of Chemistry, ‡Department of Biological Sciences, and §W. Harry Feinstone Center for Genomic
Research, University of Memphis, 3700 Walker Avenue, Memphis, Tennessee 38152-3370, United States
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19
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Monti DM, De Simone G, Langella E, Supuran CT, Di Fiore A, Monti SM. Insights into the role of reactive sulfhydryl groups of Carbonic Anhydrase III and VII during oxidative damage. J Enzyme Inhib Med Chem 2016; 32:5-12. [PMID: 27766895 PMCID: PMC6010095 DOI: 10.1080/14756366.2016.1225046] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Carbonic anhydrases (CAs) III and VII are two cytosolic isoforms of the α-CA family which catalyze the physiological reaction of carbon dioxide hydration to bicarbonate and proton. Despite these two enzymes share a 49% sequence identity and present a very similar three-dimensional structure, they show profound differences when comparing the specific activity for CO2 hydration reaction, with CA VII being much more active than CA III. Recently, CA III and CA VII have been proposed to play a new role as scavenger enzymes in cells where oxidative damage occurs. Here, we will examine functional and structural features of these two isoforms giving insights into their newly proposed protective role against oxidative stress.
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Affiliation(s)
- Daria M Monti
- a Department of Chemical Sciences , University of Naples Federico II , Naples , Italy
| | | | - Emma Langella
- b Institute of Biostructures and Bioimaging, CNR , Naples , Italy
| | - Claudiu T Supuran
- c Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche e Nutraceutiche , Università degli Studi di Firenze , Florence , Italy
| | - Anna Di Fiore
- b Institute of Biostructures and Bioimaging, CNR , Naples , Italy
| | - Simona M Monti
- b Institute of Biostructures and Bioimaging, CNR , Naples , Italy
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20
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Brigelius-Flohé R. Mixed results with mixed disulfides. Arch Biochem Biophys 2016; 595:81-7. [PMID: 27095221 DOI: 10.1016/j.abb.2015.11.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 06/03/2015] [Accepted: 10/19/2015] [Indexed: 12/17/2022]
Abstract
A period of research with Helmut Sies in the 1980s is recalled. Our experiments aimed at an in-depth understanding of metabolic changes due to oxidative challenges under near-physiological conditions, i.e. perfused organs. A major focus were alterations of the glutathione and the NADPH/NADP(+) system by different kinds of oxidants, in particular formation of glutathione mixed disulfides with proteins. To analyze mixed disulfides, a test was adapted which is widely used until today. The observations in perfused rat livers let us believe that glutathione-6-phosphate dehydrogenase (G6PDH), i.a. might be activated by glutathionylation. Although we did not succeed to verify this hypothesis for the special case of G6PDH, the regulation of enzyme/protein activities by glutathionylation today is an accepted posttranslational mechanism in redox biology in general. Our early experimental approaches are discussed in the context of present knowledge.
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Affiliation(s)
- Regina Brigelius-Flohé
- German Institute of Human Nutrition Potsdam-Rehbruecke, Arthur-Scheunert-Allee 114-116, 14558 Nuthetal, Germany.
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21
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Dattilo S, Mancuso C, Koverech G, Di Mauro P, Ontario ML, Petralia CC, Petralia A, Maiolino L, Serra A, Calabrese EJ, Calabrese V. Heat shock proteins and hormesis in the diagnosis and treatment of neurodegenerative diseases. Immun Ageing 2015; 12:20. [PMID: 26543490 PMCID: PMC4634585 DOI: 10.1186/s12979-015-0046-8] [Citation(s) in RCA: 99] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 10/15/2015] [Indexed: 12/16/2022]
Abstract
Modulation of endogenous cellular defense mechanisms via the vitagene system represents an innovative approach to therapeutic intervention in diseases causing chronic tissue damage, such as in neurodegeneration. The possibility of high-throughoutput screening using proteomic techniques, particularly redox proteomics, provide more comprehensive overview of the interaction of proteins, as well as the interplay among processes involved in neuroprotection. Here by introducing the hormetic dose response concept, the mechanistic foundations and applications to the field of neuroprotection, we discuss the emerging role of heat shock protein as prominent member of vitagene network in neuroprotection and redox proteomics as a tool for investigating redox modulation of stress responsive vitagenes. Hormetic mechanisms are reviewed as possibility of targeted therapeutic manipulation in a cell-, tissue- and/or pathway-specific manner at appropriate points in the neurodegenerative disease process.
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Affiliation(s)
- Sandro Dattilo
- />Department of Biomedical and Biotechnological Sciences, University of Catania, Via Andrea Doria, 95100 Catania, Italy
| | - Cesare Mancuso
- />Institute of Pharmacology, Catholic University School of Medicine, Rome, Italy
| | - Guido Koverech
- />Department of Biomedical and Biotechnological Sciences, University of Catania, Via Andrea Doria, 95100 Catania, Italy
| | - Paola Di Mauro
- />Department of Medical and Surgery Specialties, University of Catania, Catania, Italy
| | - Maria Laura Ontario
- />Department of Biomedical and Biotechnological Sciences, University of Catania, Via Andrea Doria, 95100 Catania, Italy
| | | | - Antonino Petralia
- />Department of Clinical and Experimental Medicine, School of Medicine, University of Catania, Catania, Italy
| | - Luigi Maiolino
- />Department of Medical and Surgery Specialties, University of Catania, Catania, Italy
| | - Agostino Serra
- />Department of Medical and Surgery Specialties, University of Catania, Catania, Italy
| | - Edward J. Calabrese
- />Environmental Health Sciences Division, School of Public Health, University of Massachusetts, Amherst, MA USA
| | - Vittorio Calabrese
- />Department of Biomedical and Biotechnological Sciences, University of Catania, Via Andrea Doria, 95100 Catania, Italy
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22
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Calabrese V, Dattilo S, Petralia A, Parenti R, Pennisi M, Koverech G, Calabrese V, Graziano A, Monte I, Maiolino L, Ferreri T, Calabrese EJ. Analytical approaches to the diagnosis and treatment of aging and aging-related disease: redox status and proteomics. Free Radic Res 2015; 49:511-24. [PMID: 25824967 DOI: 10.3109/10715762.2015.1020799] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Basal levels of oxidants are indispensible for redox signaling to produce adaptive cellular responses such as vitagenes linked to cell survival; however, at higher levels, they are detrimental to cells, contributing to aging and to the pathogenesis of numerous age-related diseases. Aging is a complex systemic process and the major gap in aging research reminds the insufficient knowledge about pathways shifting from normal "healthy" aging to disease-associated pathological aging. The major complication of normal "healthy" aging is in fact the increasing risk of age-related diseases such as cardiovascular diseases, diabetes mellitus, and neurodegenerative pathologies that can adversely affect the quality of life in general, with enhanced incidences of comorbidities and mortality. In this context, global "omics" approaches may help to dissect and fully study the cellular and molecular mechanisms of aging and age-associated processes. The proteome, being more close to the phenotype than the transcriptome and more stable than the metabolome, represents the most promising "omics" field in aging research. In the present study, we exploit recent advances in the redox biology of aging and discuss the potential of proteomics approaches as innovative tools for monitoring at the proteome level the extent of protein oxidative insult and related modifications with the identification of targeted proteins.
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Affiliation(s)
- V Calabrese
- Department of Biomedical and Biotechnological Sciences, University of Catania , Catania , Italy
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23
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Protein flexibility and cysteine reactivity: influence of mobility on the H-bond network and effects on pKa prediction. Protein J 2015; 33:323-36. [PMID: 24809821 DOI: 10.1007/s10930-014-9564-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Thanks to its chemical plasticity, cysteine (Cys) is a very versatile player in proteins. A major determinant of Cys reactivity is pKa: the ability to predict it is deemed critical in redox bioinformatics. I considered different computational methods for pKa predictions and ultimately applied one (propka, ppka1) to various datasets; for all residues I assessed the effect of (1) hydrogen bonding, electrostatics and solvation on predictions and (2) protein mobility on pKa variability. Particularly for Cys, exposure and H-bond contributions heavily dictated propka predictions. The prominence of H-bond contributions was previously reported: this may explain the effectiveness of ppka1 (with Cys, tested in a benchmark). However ppka1 was also very sensitive to protein mobility; I assessed the effects of mobility on particularly large (compared to previous studies) datasets of structural ensembles; I found that exposed Cys presented the highest pKa variability, ascribable to correspondingly high H-bond fluctuations associated with protein flexibility. The benefit of including protein dynamics in pKa predictions was previously proposed, but empirical methods were never tested in this sense; instead, giving their outstanding speed, they could lend particularly well to this purpose. I devised a strategy combining short range molecular dynamics with ppka1; the protocol aimed to mitigate high ppka1 variability by including a "statistical view" of fast conformational changes. Tested in a benchmark, the strategy lead to improved performances. These results provide new insights on Cys bioinformatics (pKa prediction protocols) and Cys biology (effect of mobility on exposed Cys properties).
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24
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Johnstone VPA, Hool LC. Glutathionylation of the L-type Ca2+ channel in oxidative stress-induced pathology of the heart. Int J Mol Sci 2014; 15:19203-25. [PMID: 25340983 PMCID: PMC4227269 DOI: 10.3390/ijms151019203] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 09/29/2014] [Accepted: 10/02/2014] [Indexed: 01/11/2023] Open
Abstract
There is mounting evidence to suggest that protein glutathionylation is a key process contributing to the development of pathology. Glutathionylation occurs as a result of posttranslational modification of a protein and involves the addition of a glutathione moiety at cysteine residues. Such modification can occur on a number of proteins, and exerts a variety of functional consequences. The L-type Ca2+ channel has been identified as a glutathionylation target that participates in the development of cardiac pathology. Ca2+ influx via the L-type Ca2+ channel increases production of mitochondrial reactive oxygen species (ROS) in cardiomyocytes during periods of oxidative stress. This induces a persistent increase in channel open probability, and the resulting constitutive increase in Ca2+ influx amplifies the cross-talk between the mitochondria and the channel. Novel strategies utilising targeted peptide delivery to uncouple mitochondrial ROS and Ca2+ flux via the L-type Ca2+ channel following ischemia-reperfusion have delivered promising results, and have proven capable of restoring appropriate mitochondrial function in myocytes and in vivo.
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Affiliation(s)
- Victoria P A Johnstone
- School of Anatomy, Physiology and Human Biology, the University of Western Australia, Crawley 6009, WA, Australia.
| | - Livia C Hool
- School of Anatomy, Physiology and Human Biology, the University of Western Australia, Crawley 6009, WA, Australia.
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25
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Huang H, Ren HM, Shang XL, Liu XY. Detection of the phosphatase activity of carbonic anhydrase III on a nitrocellulose membrane following 2D gel electrophoresis. Mol Med Rep 2014; 10:1887-92. [PMID: 25109532 DOI: 10.3892/mmr.2014.2439] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 05/14/2014] [Indexed: 11/06/2022] Open
Abstract
Carbonic anhydrase isozyme III (CAIII) is unique among the carbonic anhydrases because it exhibits phosphatase activity. CAIII is relatively specific to skeletal muscles, and may therefore be a useful diagnostic marker for muscular diseases. In the muscles of patients with myasthenia gravis (MG), CAIII is deficient and previous studies have demonstrated that changes in the phosphatase activity of CAIII is a fundamental mechanism underlying the weakness and fatigability of MG. However, there have been no effective analytical methods for investigating its phosphatase activity until now. In the present study, a new method combining two-dimensional electrophoresis (2-DE) and phosphatase staining in situ on a nitrocellulose membrane was reported to detect the phosphatase of CAIII in skeletal muscle extracts. Furthermore, a recombinant CAIII was constructed and its phosphatase activity staining was demonstrated to be positive. This method allows for the effective detection of the phosphatase activity of CAIII following 2-DE and is a promising technique for functional proteomics.
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Affiliation(s)
- He Huang
- Institute of Neurology, Fudan University, Shanghai 200040, P.R. China
| | - Hui-Min Ren
- Institute of Neurology, Fudan University, Shanghai 200040, P.R. China
| | - Xi-Liang Shang
- Department of Sports Medicine, Fudan University, Shanghai 200040, P.R. China
| | - Xue-Yuan Liu
- Department of Neurology, Shanghai Tenth People's Hospital of Tongji University, Shanghai 200092, P.R. China
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26
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Grek CL, Zhang J, Manevich Y, Townsend DM, Tew KD. Causes and consequences of cysteine S-glutathionylation. J Biol Chem 2013; 288:26497-504. [PMID: 23861399 DOI: 10.1074/jbc.r113.461368] [Citation(s) in RCA: 242] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Post-translational S-glutathionylation occurs through the reversible addition of a proximal donor of glutathione to thiolate anions of cysteines in target proteins, where the modification alters molecular mass, charge, and structure/function and/or prevents degradation from sulfhydryl overoxidation or proteolysis. Catalysis of both the forward (glutathione S-transferase P) and reverse (glutaredoxin) reactions creates a functional cycle that can also regulate certain protein functional clusters, including those involved in redox-dependent cell signaling events. For translational application, S-glutathionylated serum proteins may be useful as biomarkers in individuals (who may also have polymorphic expression of glutathione S-transferase P) exposed to agents that cause oxidative or nitrosative stress.
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Affiliation(s)
- Christina L Grek
- From the Departments of Cell and Molecular Pharmacology and Experimental Therapeutics and
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27
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Saito R, Watanabe H, Asano T, Suzuki E, Iwadate H, Kobayashi H, Ohira H. Anti-carbonic anhydrase III autoantibodies in vasculitis syndrome. Int J Rheum Dis 2013; 16:339-46. [PMID: 23981757 DOI: 10.1111/1756-185x.12089] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
AIM To identify autoantibodies useful in the diagnosis of primary vasculitides. METHODS The presence of antibodies against proteins in the lysate of mouse blood vessels was examined by two-dimensional electrophoresis followed by Western blotting for the pooled serum sample from patients with various forms of vasculitis: polyarteritis nodosa (PAN), microscopic polyangiitis (MPA), Wegener's granulomatosis (WG) and Takayasu's arteritis (TA). Autoantigenicity in patients with vasculitides was examined by Western blotting and enzyme-linked immunosorbent assay (ELISA). Clinicopathological correlations between the positivity of the autoantibodies and clinical status of patients with the vasculitis were examined. RESULTS The autoantigen detected in the lysate of pooled sera from patients with vasculitides was identified by mass spectrometry as carbonic anhydrase III (CAIII). ELISA showed significantly higher prevalence of anti-CAIII antibodies in MPA patients (MPA, 11/23 [47.8%]; healthy controls, 2/32 [6.3%]; P < 0.001). Further, anti-CAIII antibody-positive MPA patients had higher vasculitis activity scores compared to anti-CAIII antibody-negative patients, and a weak and not significant negative correlation was observed between anti-CAIII antibody levels and myeloperoxidase - anti-nuclear cytoplasmic antibody (MPO-ANCA) levels. No significant differences were found in anti-CAIII autoantibody levels between MPA and the other primary vasculitides. CONCLUSION We found significantly high prevalence of anti-CAIII antibody levels in sera from MPA patients. Although the number of samples available in this study is small and anti-CAIII autoantibodies display weak specificity for MPA, anti-CAIII antibodies may be useful for diagnosing MPA in patients who have no ANCA, as well as for assessing disease activity.
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Affiliation(s)
- Rie Saito
- Department of Gastroenterology and Rheumatology, School of Medicine, Fukushima Medical University, Fukushima, Japan
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28
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Ghezzi P. Protein glutathionylation in health and disease. Biochim Biophys Acta Gen Subj 2013; 1830:3165-72. [DOI: 10.1016/j.bbagen.2013.02.009] [Citation(s) in RCA: 125] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Revised: 01/10/2013] [Accepted: 02/07/2013] [Indexed: 12/31/2022]
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29
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Deponte M. Glutathione catalysis and the reaction mechanisms of glutathione-dependent enzymes. Biochim Biophys Acta Gen Subj 2013; 1830:3217-66. [DOI: 10.1016/j.bbagen.2012.09.018] [Citation(s) in RCA: 625] [Impact Index Per Article: 56.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 09/25/2012] [Indexed: 12/12/2022]
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30
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Collins Y, Chouchani ET, James AM, Menger KE, Cochemé HM, Murphy MP. Mitochondrial redox signalling at a glance. J Cell Sci 2013; 125:801-6. [PMID: 22448036 DOI: 10.1242/jcs.098475] [Citation(s) in RCA: 199] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Yvonne Collins
- MRC Mitochondrial Biology Unit, Wellcome Trust-MRC Building, Hills Road, Cambridge CB2 0XY, UK
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31
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Abstract
Many proteins contain free thiols that can be modified by the reversible formation of mixed disulfides with glutathione. Protein glutathionylation is of significance for defense against oxidative damage and in redox signaling. Here we outline the mechanisms and possible significance of protein glutathionylation.
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32
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Abstract
Grxs (glutaredoxins) are small ubiquitous redox enzymes. They are generally involved in the reduction of oxidative modifications using glutathione. Grxs are not only able to reduce protein disulfides and the low-molecular-mass antioxidant dehydroascorbate, but also represent the major enzyme class responsible for deglutathionylation reactions. Functional proteomics, including interaction studies, comparative activity measurements using heterologous proteins and structural analysis are combined to provide important insights into the crucial function of Grxs in cellular redox networks. Summarizing the current understanding of Grxs, with a special focus on organelle-localized members across species, genus and kingdom boundaries (including cyanobacteria, plants, bacteria, yeast and humans) lead to two different classifications, one according to sequence structure that gives insights into the diversification of Grxs, and another according to function within the cell that provides a basis for assessing the different roles of Grxs.
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Carbonic anhydrases III and IV autoantibodies in rheumatoid arthritis, systemic lupus erythematosus, diabetes, hypertensive renal disease, and heart failure. Clin Dev Immunol 2012; 2012:354594. [PMID: 23049597 PMCID: PMC3461255 DOI: 10.1155/2012/354594] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2012] [Accepted: 08/14/2012] [Indexed: 02/06/2023]
Abstract
In the present study, the CA III and IV autoantibodies, CA activity, antioxidant enzymes and cytokines in rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), diabetes, hypertensive renal disease, and heart failure were investigated. The anti-CA III antibody titers in patients with RA, SLE, and type 1 diabetes (T1D) were significantly higher than that in control groups (P < 0.05). The anti-CA IV antibody titers in patients with RA, SLE, type 1 diabetic nephropathy (T1DN), and heart failure were significantly higher than that in control groups (P < 0.05) while anti-CA IV antibody could suppress the total CA activity. The SOD and GPx levels in patients with RA, SLE, and T1DN were significantly lower than that in control groups (P < 0.05). IL-6, IL-17, IFN-γ, and TNF-α levels were significantly higher in SLE group compared with the control group (P < 0.05). Weak but significant correlations were found between anti-CA III antibodies and ESR in RA (r = 0.403, P = 0.013) and SLE patients (r = 0.397, P = 0.007). These results suggested that the generation of CA III and IV autoantibodies, antioxidant enzymes, and cytokines might influence each other and CA autoantibodies might affect the normal physiology function of CA.
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Johnson H, Del Rosario AM, Bryson BD, Schroeder MA, Sarkaria JN, White FM. Molecular characterization of EGFR and EGFRvIII signaling networks in human glioblastoma tumor xenografts. Mol Cell Proteomics 2012; 11:1724-40. [PMID: 22964225 DOI: 10.1074/mcp.m112.019984] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Glioblastoma multiforme (GBM) is a malignant primary brain tumor with a mean survival of 15 months with the current standard of care. Genetic profiling efforts have identified the amplification, overexpression, and mutation of the wild-type (wt) epidermal growth factor receptor tyrosine kinase (EGFR) in ≈ 50% of GBM patients. The genetic aberration of wtEGFR is frequently accompanied by the overexpression of a mutant EGFR known as EGFR variant III (EGFRvIII, de2-7EGFR, ΔEGFR), which is expressed in 30% of GBM tumors. The molecular mechanisms of tumorigenesis driven by EGFRvIII overexpression in human tumors have not been fully elucidated. To identify specific therapeutic targets for EGFRvIII driven tumors, it is important to gather a broad understanding of EGFRvIII specific signaling. Here, we have characterized signaling through the quantitative analysis of protein expression and tyrosine phosphorylation across a panel of glioblastoma tumor xenografts established from patient surgical specimens expressing wtEGFR or overexpressing wtEGFR (wtEGFR+) or EGFRvIII (EGFRvIII+). S100A10 (p11), major vault protein, guanylate-binding protein 1(GBP1), and carbonic anhydrase III (CAIII) were identified to have significantly increased expression in EGFRvIII expressing xenograft tumors relative to wtEGFR xenograft tumors. Increased expression of these four individual proteins was found to be correlated with poor survival in patients with GBM; the combination of these four proteins represents a prognostic signature for poor survival in gliomas. Integration of protein expression and phosphorylation data has uncovered significant heterogeneity among the various tumors and has highlighted several novel pathways, related to EGFR trafficking, activated in glioblastoma. The pathways and proteins identified in these tumor xenografts represent potential therapeutic targets for this disease.
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Affiliation(s)
- Hannah Johnson
- Department of Bioengineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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Lin CH, Lin ES, Su TM, Hung KS, Yang YS. A nano switch mechanism for the redox-responsive sulfotransferase. Biochem Pharmacol 2012; 84:224-31. [DOI: 10.1016/j.bcp.2012.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2012] [Revised: 04/02/2012] [Accepted: 04/02/2012] [Indexed: 10/28/2022]
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Murphy MP. Mitochondrial thiols in antioxidant protection and redox signaling: distinct roles for glutathionylation and other thiol modifications. Antioxid Redox Signal 2012; 16:476-95. [PMID: 21954972 DOI: 10.1089/ars.2011.4289] [Citation(s) in RCA: 251] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
SIGNIFICANCE The mitochondrial matrix contains much of the machinery at the heart of metabolism. This compartment is also exposed to a high and continual flux of superoxide, hydrogen peroxide, and related reactive species. To protect mitochondria from these sources of oxidative damage, there is an integrated set of thiol systems within the matrix comprising the thioredoxin/peroxiredoxin/methionine sulfoxide reductase pathways and the glutathione/glutathione peroxidase/glutathione-S-transferase/glutaredoxin pathways that in conjunction with protein thiols prevent much of this oxidative damage. In addition, the changes in the redox state of many components of these mitochondrial thiol systems may transduce and relay redox signals within and through the mitochondrial matrix to modulate the activity of biochemical processes. RECENT ADVANCES Here, mitochondrial thiol systems are reviewed, and areas of uncertainty are pointed out, focusing on recent developments in our understanding of their roles. CRITICAL ISSUES The areas of particular focus are on the multiple, overlapping roles of mitochondrial thiols and on understanding how these thiols contribute to both antioxidant defenses and redox signaling. FUTURE DIRECTIONS Recent technical progress in the identification and quantification of thiol modifications by redox proteomics means that many of the questions raised about the multiple roles of mitochondrial thiols can now be addressed.
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Mitterberger MC, Kim G, Rostek U, Levine RL, Zwerschke W. Carbonic anhydrase III regulates peroxisome proliferator-activated receptor-γ2. Exp Cell Res 2012; 318:877-86. [PMID: 22507175 DOI: 10.1016/j.yexcr.2012.02.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Revised: 01/26/2012] [Accepted: 02/16/2012] [Indexed: 01/21/2023]
Abstract
Carbonic anhydrase III (CAIII) is an isoenzyme of the CA family. Because of its low specific anhydrase activity, physiological functions in addition to hydrating CO(2) have been proposed. CAIII expression is highly induced in adipogenesis and CAIII is the most abundant protein in adipose tissues. The function of CAIII in both preadipocytes and adipocytes is however unknown. In the present study we demonstrate that adipogenesis is greatly increased in mouse embryonic fibroblasts (MEFs) from CAIII knockout (KO) mice, as demonstrated by a greater than 10-fold increase in the induction of fatty acid-binding protein-4 (FABP4) and increased triglyceride formation in CAIII(-/-) MEFs compared with CAIII(+/+) cells. To address the underlying mechanism, we investigated the expression of the two adipogenic key regulators, peroxisome proliferator-activated receptor-γ2 (PPARγ2) and CCAAT/enhancer binding protein-α. We found a considerable (approximately 1000-fold) increase in the PPARγ2 expression in the CAIII(-/-) MEFs. Furthermore, RNAi-mediated knockdown of endogenous CAIII in NIH 3T3-L1 preadipocytes resulted in a significant increase in the induction of PPARγ2 and FABP4. When both CAIII and PPARγ2 were knocked down, FABP4 was not induced. We conclude that down-regulation of CAIII in preadipocytes enhances adipogenesis and that CAIII is a regulator of adipogenic differentiation which acts at the level of PPARγ2 gene expression.
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Affiliation(s)
- Maria C Mitterberger
- Cell Metabolism and Differentiation Research Group, Institute for Biomedical Aging Research of the Austrian Academy of Sciences, Austria
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Marino SM, Gladyshev VN. Analysis and functional prediction of reactive cysteine residues. J Biol Chem 2011; 287:4419-25. [PMID: 22157013 DOI: 10.1074/jbc.r111.275578] [Citation(s) in RCA: 198] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Cys is much different from other common amino acids in proteins. Being one of the least abundant residues, Cys is often observed in functional sites in proteins. This residue is reactive, polarizable, and redox-active; has high affinity for metals; and is particularly responsive to the local environment. A better understanding of the basic properties of Cys is essential for interpretation of high-throughput data sets and for prediction and classification of functional Cys residues. We provide an overview of approaches used to study Cys residues, from methods for investigation of their basic properties, such as exposure and pK(a), to algorithms for functional prediction of different types of Cys in proteins.
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Affiliation(s)
- Stefano M Marino
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
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Tew KD, Manevich Y, Grek C, Xiong Y, Uys J, Townsend DM. The role of glutathione S-transferase P in signaling pathways and S-glutathionylation in cancer. Free Radic Biol Med 2011; 51:299-313. [PMID: 21558000 PMCID: PMC3125017 DOI: 10.1016/j.freeradbiomed.2011.04.013] [Citation(s) in RCA: 143] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Revised: 04/07/2011] [Accepted: 04/07/2011] [Indexed: 12/12/2022]
Abstract
Glutathione S-transferase P is abundantly expressed in some mammalian tissues, particularly those associated with malignancies. While the enzyme can catalyze thioether bond formation between some electrophilic chemicals and GSH, novel nondetoxification functions are now ascribed to it. This review summarizes recent material that implicates GSTP in mediating S-glutathionylation of specific clusters of target proteins and in reactions that define a negative regulatory role in some kinase pathways through ligand or protein:protein interactions. It is becoming apparent that GSTP participates in the maintenance of cellular redox homeostasis through a number of convergent and divergent mechanisms. Moreover, drug platforms that have GSTP as a target have produced some interesting preclinical and clinical candidates.
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Affiliation(s)
- Kenneth D Tew
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC 29425, USA.
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Marino SM, Gladyshev VN. Redox biology: computational approaches to the investigation of functional cysteine residues. Antioxid Redox Signal 2011; 15:135-46. [PMID: 20812876 PMCID: PMC3110093 DOI: 10.1089/ars.2010.3561] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2010] [Revised: 08/19/2010] [Accepted: 09/02/2010] [Indexed: 12/18/2022]
Abstract
Cysteine (Cys) residues serve many functions, such as catalysis, stabilization of protein structure through disulfides, metal binding, and regulation of protein function. Cys residues are also subject to numerous post-translational modifications. In recent years, various computational tools aiming at classifying and predicting different functional categories of Cys have been developed, particularly for structural and catalytic Cys. On the other hand, given complexity of the subject, bioinformatics approaches have been less successful for the investigation of regulatory Cys sites. In this review, we introduce different functional categories of Cys residues. For each category, an overview of state-of-the-art bioinformatics methods and tools is provided, along with examples of successful applications and potential limitations associated with each approach. Finally, we discuss Cys-based redox switches, which modify the view of distinct functional categories of Cys in proteins.
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Affiliation(s)
- Stefano M Marino
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
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Regulation of mitochondrial processes by protein S-nitrosylation. Biochim Biophys Acta Gen Subj 2011; 1820:712-21. [PMID: 21397666 DOI: 10.1016/j.bbagen.2011.03.008] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Revised: 02/21/2011] [Accepted: 03/04/2011] [Indexed: 12/24/2022]
Abstract
BACKGROUND Nitric oxide (NO) exerts powerful physiological effects through guanylate cyclase (GC), a non-mitochondrial enzyme, and through the generation of protein cysteinyl-NO (SNO) adducts-a post-translational modification relevant to mitochondrial biology. A small number of SNO proteins, generated by various mechanisms, are characteristically found in mammalian mitochondria and influence the regulation of oxidative phosphorylation and other aspects of mitochondrial function. SCOPE OF REVIEW The principles by which mitochondrial SNO proteins are formed and their actions, independently or collectively with NO binding to heme, iron-sulfur centers, or to glutathione (GSH) are reviewed on a molecular background of SNO-based signal transduction. MAJOR CONCLUSIONS Mitochondrial SNO-proteins have been demonstrated to inhibit Complex I of the electron transport chain, to modulate mitochondrial reactive oxygen species (ROS) production, influence calcium-dependent opening of the mitochondrial permeability transition pore (MPTP), promote selective importation of mitochondrial protein, and stimulate mitochondrial fission. The ease of reversibility and the affirmation of regulated S-nitros(yl)ating and denitros(yl)ating enzymatic reactions support hypotheses that SNO regulates the mitochondrion through redox mechanisms. SNO modification of mitochondrial proteins, whether homeostatic or adaptive (physiological), or pathogenic, is an area of active investigation. GENERAL SIGNIFICANCE Mitochondrial SNO proteins are associated with mainly protective, bur some pathological effects; the former mainly in inflammatory and ischemia/reperfusion syndromes and the latter in neurodegenerative diseases. Experimentally, mitochondrial SNO delivery is also emerging as a potential new area of therapeutics. This article is part of a Special Issue entitled: Regulation of cellular processes by S-nitrosylation.
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PYDDT, a novel phase 2 enzymes inducer, activates Keap1–Nrf2 pathway via depleting the cellular level of glutathione. Toxicol Lett 2010; 199:93-101. [DOI: 10.1016/j.toxlet.2010.08.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Revised: 07/29/2010] [Accepted: 08/20/2010] [Indexed: 01/16/2023]
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Johnston N, Wells CW, Samuels TL, Blumin JH. Pepsin in nonacidic refluxate can damage hypopharyngeal epithelial cells. Ann Otol Rhinol Laryngol 2009; 118:677-85. [PMID: 19810610 DOI: 10.1177/000348940911800913] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVES Studies using combined multichannel intraluminal impedance with pH monitoring reveal a role for nonacidic reflux in laryngopharyngeal symptoms and injury. We have discovered that pepsin is taken up by laryngeal epithelial cells by receptor-mediated endocytosis. This finding reveals a novel mechanism by which pepsin could cause cell damage, potentially even in nonacidic refluxate. The objective of this study was to determine whether pepsin, at pH 7.4 and thus in nonacidic refluxate, causes cell damage. METHODS Cultured hypopharyngeal epithelial (FaDu) cells were exposed to human pepsin (0.1 mg/mL) at pH 7.4 for either 1 hour or 12 hours at 37 degrees C and analyzed by electron microscopy, cytotoxicity assay, and SuperArray. RESULTS We report mitochondrial and Golgi complex damage in cells exposed to pepsin at neutral pH, observed by electron microscopy. We also report cell toxicity of pepsin at pH 7.4, measured by a cytotoxicity assay. Furthermore, using SuperArray, we found that pepsin at pH 7.4 significantly alters the expression levels of multiple genes implicated in stress and toxicity. CONCLUSIONS These findings are perhaps the first to explain why many patients have symptoms and injury associated with nonacidic reflux, and could have important implications for the development of new therapies for reflux, such as pepsin receptor antagonists and/or irreversible inhibitors of peptic activity.
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Affiliation(s)
- Nikki Johnston
- Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee, WI 53226, USA
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44
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Abstract
Redox regulation of stress proteins, such as molecular chaperones, guarantees an immediate response to oxidative stress conditions. This review focuses on the two major classes of redox-regulated chaperones, Hsp33 in bacteria and typical 2-Cys peroxiredoxins in eukaryotes. Both proteins employ redox-sensitive cysteines, whose oxidation status directly controls their affinity for unfolding proteins and therefore their chaperone function. We will first discuss Hsp33, whose oxidative stress-induced disulfide bond formation triggers the partial unfolding of the chaperone, which, in turn, leads to the exposure of a high-affinity binding site for unfolded proteins. This rapid mode of activation makes Hsp33 essential for protecting bacteria against severe oxidative stress conditions, such as hypochlorite (i.e., bleach) treatment, which leads to widespread protein unfolding and aggregation. We will compare Hsp33 to the highly abundant eukaryotic typical 2-Cys peroxiredoxin, whose oxidative stress-induced sulfinic acid formation turns the peroxidase into a molecular chaperone in vitro and presumably in vivo. These examples illustrate how proteins use reversible cysteine modifications to rapidly adjust to oxidative stress conditions and demonstrate that redox regulation plays a vital role in protecting organisms against reactive oxygen species-mediated cell death.
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Affiliation(s)
- Caroline Kumsta
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, Michigan 48109, USA
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45
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Shang X, Chen S, Ren H, Li Y, Huang H. Carbonic anhydrase III: the new hope for the elimination of exercise-induced muscle fatigue. Med Hypotheses 2009; 72:427-9. [PMID: 19135807 DOI: 10.1016/j.mehy.2008.10.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2008] [Revised: 10/03/2008] [Accepted: 10/10/2008] [Indexed: 10/21/2022]
Abstract
Fatigue, defined as the failure to maintain the required or expected power output, is a complex problem. Its occurrence mechanism is extremely complicated. The obvious reasons are that it is a multifactorial situation and that the limiting factors may vary with force intensity, exercise duration and muscle type. In recent years, it has been found that carbonic anhydrase III(CAIII) which is present in high concentrations in muscles has multiple biological activities that can dissipate or resist some fatigue related substances. Therefore, we hypothesize that the CAIII supplementation may contribute to dissipate fatigue. Confirmation of this hypothesis will further add to our understanding of the physiological functions of CAIII and will be hopeful to solve the difficulties in eliminating muscular fatigue.
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Affiliation(s)
- Xiliang Shang
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai 200040, PR China
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46
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Dai H, Hong C, Liang S, Yan M, Lai G, Cheng A, Chuang S. Carbonic anhydrase III promotes transformation and invasion capability in hepatoma cells through FAK signaling pathway. Mol Carcinog 2008; 47:956-63. [DOI: 10.1002/mc.20448] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Huei‐Yue Dai
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan, ROC
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Taiwan, ROC
| | - Chih‐Chen Hong
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan, ROC
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Taiwan, ROC
| | - San‐Chi Liang
- Laboratory Animal Center, National Defense Medical Center, Taipei, Taiwan, ROC
- National Laboratory Animal Center, National Applied Research Laboratories, Nan‐Kang, Taipei, Taiwan, ROC
| | - Ming‐De Yan
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Taiwan, ROC
| | - Gi‐Ming Lai
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Taiwan, ROC
| | - Ann‐Lii Cheng
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Taiwan, ROC
- Departments of Internal Medicine and Oncology, National Taiwan University Hospital, Taipei, Taiwan, ROC
| | - Shuang‐En Chuang
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Taiwan, ROC
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Mieyal JJ, Gallogly MM, Qanungo S, Sabens EA, Shelton MD. Molecular mechanisms and clinical implications of reversible protein S-glutathionylation. Antioxid Redox Signal 2008; 10:1941-88. [PMID: 18774901 PMCID: PMC2774718 DOI: 10.1089/ars.2008.2089] [Citation(s) in RCA: 428] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Sulfhydryl chemistry plays a vital role in normal biology and in defense of cells against oxidants, free radicals, and electrophiles. Modification of critical cysteine residues is an important mechanism of signal transduction, and perturbation of thiol-disulfide homeostasis is an important consequence of many diseases. A prevalent form of cysteine modification is reversible formation of protein mixed disulfides (protein-SSG) with glutathione (GSH). The abundance of GSH in cells and the ready conversion of sulfenic acids and S-nitroso derivatives to S-glutathione mixed disulfides suggests that reversible S-glutathionylation may be a common feature of redox signal transduction and regulation of the activities of redox sensitive thiol-proteins. The glutaredoxin enzyme has served as a focal point and important tool for evolution of this regulatory mechanism, because it is a specific and efficient catalyst of protein-SSG deglutathionylation. However, mechanisms of control of intracellular Grx activity in response to various stimuli are not well understood, and delineation of specific mechanisms and enzyme(s) involved in formation of protein-SSG intermediates requires further attention. A large number of proteins have been identified as potentially regulated by reversible S-glutathionylation, but only a few studies have documented glutathionylation-dependent changes in activity of specific proteins in a physiological context. Oxidative stress is a hallmark of many diseases which may interrupt or divert normal redox signaling and perturb protein-thiol homeostasis. Examples involving changes in S-glutathionylation of specific proteins are discussed in the context of diabetes, cardiovascular and lung diseases, cancer, and neurodegenerative diseases.
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Affiliation(s)
- John J Mieyal
- Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio 44106-4965, USA.
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Bülbül M, Erat M. Investigation of the effects of some sulfonamide derivatives on the activities of glucose-6-phosphate dehydrogenase, 6-phospho gluconate dehydrogenase and glutathione reductase from human erythrocytes. J Enzyme Inhib Med Chem 2008; 23:418-23. [DOI: 10.1080/14756360701546413] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Affiliation(s)
- Metín Bülbül
- Department of Chemistry, Dumlupinar University, Art and Science Faculty, Kütahya, Turkey
| | - Mustafa Erat
- Atatürk University, Biotechnology Application and Research Center, Erzurum, Turkey
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Krishnamurthy VM, Kaufman GK, Urbach AR, Gitlin I, Gudiksen KL, Weibel DB, Whitesides GM. Carbonic anhydrase as a model for biophysical and physical-organic studies of proteins and protein-ligand binding. Chem Rev 2008; 108:946-1051. [PMID: 18335973 PMCID: PMC2740730 DOI: 10.1021/cr050262p] [Citation(s) in RCA: 561] [Impact Index Per Article: 35.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Vijay M. Krishnamurthy
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138
| | - George K. Kaufman
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138
| | - Adam R. Urbach
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138
| | - Irina Gitlin
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138
| | - Katherine L. Gudiksen
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138
| | - Douglas B. Weibel
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138
| | - George M. Whitesides
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138
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50
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Huang Z, Pinto JT, Deng H, Richie JP. Inhibition of caspase-3 activity and activation by protein glutathionylation. Biochem Pharmacol 2008; 75:2234-44. [PMID: 18395187 DOI: 10.1016/j.bcp.2008.02.026] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2007] [Revised: 02/21/2008] [Accepted: 02/22/2008] [Indexed: 11/26/2022]
Abstract
Protein glutathionylation is a post-translational modification that may account for a broad mechanism of redox signaling. The caspase family of cysteine proteases represents a potential target for regulation by glutathionylation. To examine this, caspase proteins, derived from HL-60 cells after activation with actinomycin D, were incubated with GSSG. Total protein glutathionylation was enhanced and caspase-3 activity was inhibited in a dose- and time-dependent manner by GSSG. Caspase inhibition was reversible by thiol-specific reducing reagents. Proteolytic activation of caspases was also affected, as the activation of procaspase-3 and procaspase-9 in HL-60 cell extracts induced by cytochrome c and dATP was inhibited by pre-incubation with GSSG. When biotin-labeled GSSG was incubated with recombinant caspase-3, biotin label was found associated with both p12 and p17 subunits of active caspase-3 by non-reducing SDS-PAGE. Caspase-3 glutathionylation was confirmed by matrix assisted laser desorption ionization (MALDI) mass spectrometric analysis of GSSG-treated recombinant caspase-3. Specific sites of glutathionylation were identified as Cys(135) of the p17 protein (the active site) and Cys(45) of the p12 protein. These results indicate that glutathionylation of caspase can occur at physiologically relevant concentrations of GSSG and results in the inhibition of caspase activation and activity.
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Affiliation(s)
- Zhishan Huang
- Department of Pathology, New York Medical College, Valhalla, NY 10595, United States.
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