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Mortelecque J, Zejneli O, Bégard S, Simões MC, ElHajjar L, Nguyen M, Cantrelle FX, Hanoulle X, Rain JC, Colin M, Gomes CM, Buée L, Landrieu I, Danis C, Dupré E. A selection and optimization strategy for single-domain antibodies targeting the PHF6 linear peptide within the tau intrinsically disordered protein. J Biol Chem 2024; 300:107163. [PMID: 38484799 PMCID: PMC11007443 DOI: 10.1016/j.jbc.2024.107163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 02/15/2024] [Accepted: 03/06/2024] [Indexed: 04/12/2024] Open
Abstract
The use of variable domain of the heavy-chain of the heavy-chain-only antibodies (VHHs) as disease-modifying biomolecules in neurodegenerative disorders holds promises, including targeting of aggregation-sensitive proteins. Exploitation of their clinical values depends however on the capacity to deliver VHHs with optimal physico-chemical properties for their specific context of use. We described previously a VHH with high therapeutic potential in a family of neurodegenerative diseases called tauopathies. The activity of this promising parent VHH named Z70 relies on its binding within the central region of the tau protein. Accordingly, we carried out random mutagenesis followed by yeast two-hybrid screening to obtain optimized variants. The VHHs selected from this initial screen targeted the same epitope as VHH Z70 as shown using NMR spectroscopy and had indeed improved binding affinities according to dissociation constant values obtained by surface plasmon resonance spectroscopy. The improved affinities can be partially rationalized based on three-dimensional structures and NMR data of three complexes consisting of an optimized VHH and a peptide containing the tau epitope. Interestingly, the ability of the VHH variants to inhibit tau aggregation and seeding could not be predicted from their affinity alone. We indeed showed that the in vitro and in cellulo VHH stabilities are other limiting key factors to their efficacy. Our results demonstrate that only a complete pipeline of experiments, here described, permits a rational selection of optimized VHH variants, resulting in the selection of VHH variants with higher affinities and/or acting against tau seeding in cell models.
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Affiliation(s)
- Justine Mortelecque
- CNRS EMR9002 - BSI - Integrative Structural Biology, Lille, France; Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille, France
| | - Orgeta Zejneli
- CNRS EMR9002 - BSI - Integrative Structural Biology, Lille, France; Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille, France; Univ. Lille, Inserm, CHU-Lille, U1172 - LilNCog - Lille Neuroscience & Cognition, Lille, France
| | - Séverine Bégard
- Univ. Lille, Inserm, CHU-Lille, U1172 - LilNCog - Lille Neuroscience & Cognition, Lille, France
| | - Margarida C Simões
- BioISI - Instituto de Biosistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal; Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Lea ElHajjar
- CNRS EMR9002 - BSI - Integrative Structural Biology, Lille, France; Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille, France
| | - Marine Nguyen
- CNRS EMR9002 - BSI - Integrative Structural Biology, Lille, France; Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille, France
| | - François-Xavier Cantrelle
- CNRS EMR9002 - BSI - Integrative Structural Biology, Lille, France; Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille, France
| | - Xavier Hanoulle
- CNRS EMR9002 - BSI - Integrative Structural Biology, Lille, France; Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille, France
| | | | - Morvane Colin
- Univ. Lille, Inserm, CHU-Lille, U1172 - LilNCog - Lille Neuroscience & Cognition, Lille, France
| | - Cláudio M Gomes
- BioISI - Instituto de Biosistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal; Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Luc Buée
- Univ. Lille, Inserm, CHU-Lille, U1172 - LilNCog - Lille Neuroscience & Cognition, Lille, France.
| | - Isabelle Landrieu
- CNRS EMR9002 - BSI - Integrative Structural Biology, Lille, France; Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille, France.
| | - Clément Danis
- CNRS EMR9002 - BSI - Integrative Structural Biology, Lille, France; Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille, France; Univ. Lille, Inserm, CHU-Lille, U1172 - LilNCog - Lille Neuroscience & Cognition, Lille, France
| | - Elian Dupré
- CNRS EMR9002 - BSI - Integrative Structural Biology, Lille, France; Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille, France.
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Coelho R, De Benedictis CA, Sauer AK, Figueira AJ, Faustino H, Grabrucker AM, Gomes CM. Secondary Modification of S100B Influences Anti Amyloid-β Aggregation Activity and Alzheimer's Disease Pathology. Int J Mol Sci 2024; 25:1787. [PMID: 38339064 PMCID: PMC10855146 DOI: 10.3390/ijms25031787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 01/25/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024] Open
Abstract
Proteinaceous aggregates accumulate in neurodegenerative diseases such as Alzheimer's Disease (AD), inducing cellular defense mechanisms and altering the redox status. S100 pro-inflammatory cytokines, particularly S100B, are activated during AD, but recent findings reveal an unconventional molecular chaperone role for S100B in hindering Aβ aggregation and toxicity. This suggests a potential protective role for S100B at the onset of Aβ proteotoxicity, occurring in a complex biochemical environment prone to oxidative damage. Herein, we report an investigation in which extracellular oxidative conditions are mimicked to test if the susceptibility of S100B to oxidation influences its protective activities. Resorting to mild oxidation of S100B, we observed methionine oxidation as inferred from mass spectrometry, but no cysteine-mediated crosslinking. Structural analysis showed that the folding, structure, and stability of oxidized S100B were not affected, and nor was its quaternary structure. However, studies on Aβ aggregation kinetics indicated that oxidized S100B was more effective in preventing aggregation, potentially linked to the oxidation of Met residues within the S100:Aβ binding cleft that favors interactions. Using a cell culture model to analyze the S100B functions in a highly oxidative milieu, as in AD, we observed that Aβ toxicity is rescued by the co-administration of oxidized S100B to a greater extent than by S100B. Additionally, results suggest a disrupted positive feedback loop involving S100B which is caused by its oxidation, leading to the downstream regulation of IL-17 and IFN-α2 expression as mediated by S100B.
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Affiliation(s)
- Romina Coelho
- BioISI—Instituto de Biosistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (R.C.); (A.J.F.)
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Chiara A. De Benedictis
- Cellular Neurobiology and Neuro-Nanotechnology Laboratory, Department of Biological Sciences, University of Limerick, V94PH61 Limerick, Ireland; (C.A.D.B.); (A.K.S.)
- Bernal Institute, University of Limerick, V94PH61 Limerick, Ireland
| | - Ann Katrin Sauer
- Cellular Neurobiology and Neuro-Nanotechnology Laboratory, Department of Biological Sciences, University of Limerick, V94PH61 Limerick, Ireland; (C.A.D.B.); (A.K.S.)
- Bernal Institute, University of Limerick, V94PH61 Limerick, Ireland
- Health Research Institute (HRI), University of Limerick, V94PH61 Limerick, Ireland
| | - António J. Figueira
- BioISI—Instituto de Biosistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (R.C.); (A.J.F.)
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Hélio Faustino
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisboa, Portugal;
- Association BLC3—Technology and Innovation Campus, Centre Bio R&D Unit, Oliveira do Hospital, Rua Nossa Senhora da Conceição No. 2, 3405-155 Coimbra, Portugal
| | - Andreas M. Grabrucker
- Cellular Neurobiology and Neuro-Nanotechnology Laboratory, Department of Biological Sciences, University of Limerick, V94PH61 Limerick, Ireland; (C.A.D.B.); (A.K.S.)
- Bernal Institute, University of Limerick, V94PH61 Limerick, Ireland
- Health Research Institute (HRI), University of Limerick, V94PH61 Limerick, Ireland
| | - Cláudio M. Gomes
- BioISI—Instituto de Biosistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (R.C.); (A.J.F.)
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
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Martins IM, Lima A, de Graaff W, Cristóvão JS, Brosens N, Aronica E, Kluskens LD, Gomes CM, Azeredo J, Kessels HW. M13 phage grafted with peptide motifs as a tool to detect amyloid-β oligomers in brain tissue. Commun Biol 2024; 7:134. [PMID: 38280942 PMCID: PMC10821927 DOI: 10.1038/s42003-024-05806-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 01/11/2024] [Indexed: 01/29/2024] Open
Abstract
Oligomeric clusters of amyloid-β (Aβ) are one of the major biomarkers for Alzheimer's disease (AD). However, proficient methods to detect Aβ-oligomers in brain tissue are lacking. Here we show that synthetic M13 bacteriophages displaying Aβ-derived peptides on their surface preferentially interact with Aβ-oligomers. When exposed to brain tissue isolated from APP/PS1-transgenic mice, these bacteriophages detect small-sized Aβ-aggregates in hippocampus at an early age, prior to the occurrence of Aβ-plaques. Similarly, the bacteriophages reveal the presence of such small Aβ-aggregates in post-mortem hippocampus tissue of AD-patients. These results advocate bacteriophages displaying Aβ-peptides as a convenient and low-cost tool to identify Aβ-oligomers in post-mortem brain tissue of AD-model mice and AD-patients.
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Affiliation(s)
- Ivone M Martins
- CEB- Centre of Biological Engineering, University of Minho, 4710-057, Braga, Portugal.
- LABBELS - Associate Laboratory, Braga/Guimarães, Portugal.
- Netherlands Institute for Neuroscience, Amsterdam, the Netherlands.
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam Neuroscience, Amsterdam, the Netherlands.
| | - Alexandre Lima
- CEB- Centre of Biological Engineering, University of Minho, 4710-057, Braga, Portugal
- LABBELS - Associate Laboratory, Braga/Guimarães, Portugal
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - Wim de Graaff
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - Joana S Cristóvão
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Niek Brosens
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - Eleonora Aronica
- Amsterdam UMC location University of Amsterdam, Department of (Neuro)Pathology, Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - Leon D Kluskens
- CEB- Centre of Biological Engineering, University of Minho, 4710-057, Braga, Portugal
- LABBELS - Associate Laboratory, Braga/Guimarães, Portugal
| | - Cláudio M Gomes
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Joana Azeredo
- CEB- Centre of Biological Engineering, University of Minho, 4710-057, Braga, Portugal
- LABBELS - Associate Laboratory, Braga/Guimarães, Portugal
| | - Helmut W Kessels
- Netherlands Institute for Neuroscience, Amsterdam, the Netherlands.
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam Neuroscience, Amsterdam, the Netherlands.
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Moreira GG, Gomes CM. Tau liquid-liquid phase separation is modulated by the Ca 2+ -switched chaperone activity of the S100B protein. J Neurochem 2023; 166:76-86. [PMID: 36621842 DOI: 10.1111/jnc.15756] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 12/03/2022] [Accepted: 12/19/2022] [Indexed: 01/10/2023]
Abstract
Aggregation of the microtubule-associated protein tau is implicated in several neurodegenerative tauopathies including Alzheimer's disease (AD). Recent studies evidenced tau liquid-liquid phase separation (LLPS) into droplets as an early event in tau pathogenesis with the potential to enhance aggregation. Tauopathies like AD are accompanied by sustained neuroinflammation and the release of alarmins at early stages of inflammatory responses encompass protective functions. The Ca2+ -binding S100B protein is an alarmin augmented in AD that was recently implicated as a proteostasis regulator acting as a chaperone-type protein, inhibiting aggregation and toxicity through interactions of amyloidogenic clients with a regulatory surface exposed upon Ca2+ -binding. Here we expand the regulatory functions of S100B over protein condensation phenomena by reporting its Ca2+ -dependent activity as a modulator of tau LLPS induced by crowding agents (PEG) and metal ions (Zn2+ ). We observe that apo S100B has a negligible effect on PEG-induced tau demixing but that Ca2+ -bound S100B prevents demixing, resulting in a shift of the phase diagram boundary to higher crowding concentrations. Also, while incubation with apo S100B does not compromise tau LLPS, addition of Ca2+ results in a sharp decrease in turbidity, indicating that interactions with S100B-Ca2+ promote transition of tau to the mixed phase. Further, electrophoretic analysis and FLIM-FRET studies revealed that S100B incorporates into tau liquid droplets, suggesting an important stabilizing and chaperoning role contributing to minimize toxic tau aggregates. Resorting to Alexa488-labeled tau we observed that S100B-Ca2+ reduces the formation of tau fluorescent droplets, without compromising liquid-like behavior and droplet fusion events. The Zn2+ -binding properties of S100B also contribute to regulate Zn2+ -promoted tau LLPS as droplets are decreased by Zn2+ buffering by S100B, in addition to the Ca2+ -triggered interactions with tau. Altogether this work uncovers the versatility of S100B as a proteostasis regulator acting on protein condensation phenomena of relevance across the neurodegeneration continuum.
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Affiliation(s)
- Guilherme G Moreira
- BioISI-Instituto de Biosistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Cláudio M Gomes
- BioISI-Instituto de Biosistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
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Gomes CM, Hoyer W, Luo J. Editorial: The biochemistry of amyloids in neurodegenerative diseases, volume II. Front Neurosci 2023; 17:1236518. [PMID: 37440916 PMCID: PMC10335389 DOI: 10.3389/fnins.2023.1236518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 06/09/2023] [Indexed: 07/15/2023] Open
Affiliation(s)
- Cláudio M. Gomes
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Wolfgang Hoyer
- Institute of Physical Biology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Institute of Biological Information Processing (IBI-7) and Jülich Center for Structural Biology, Forschungszentrum Jülich, Jülich, Germany
| | - Jinghui Luo
- Department of Biology and Chemistry, Paul Scherrer Institute, Villigen, Switzerland
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Vázquez-Lorente H, Dunđerović DM, Tatić SB, Radojević-Škodrić S, Gomes CM, Paunović IR, Dragutinović V. Matrix Metalloproteinases 2 and 9 and Their Tissue Inhibitors in the Diagnostics of Medullary Thyroid Carcinoma. Appl Immunohistochem Mol Morphol 2023; 31:121-127. [PMID: 36512647 DOI: 10.1097/pai.0000000000001092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 11/02/2022] [Indexed: 12/15/2022]
Abstract
Medullary Thyroid Carcinoma (MTC) is a tumor of the neuroendocrine system. In recent years, the need to assess the MTC diagnostic-related parameters has emerged with the aim to elucidate the mechanisms involved in this pathology. The objective of this study was to evaluate the role of Matrix Metalloproteinases (MMPs) 2 and 9, their tissue inhibitors of matrix metalloproteinases (TIMPs), S100 protein, and amyloid in the diagnostic of MTC. Thirty-two samples with MTC (72% women) were included in this cross-sectional study and divided by groups: T category 1 (T1)≤20 mm and T category 2 (T2) 20 to 40 mm of tumor size. MMPs 2 and 9, TIMPs 2 and 1, S100 protein, and calcitonin in tissues were obtained by immunohistochemical techniques. The presence of amyloid in tissue sections was detected on Thioflavin T-stained slides under fluorescent microscope. Percentage of positive cells (P) observed for MMP-2 was higher in those samples presenting T2 MTC with respect to those with T1 MTC ( P <0.05). Moreover, P-MMP-2 showed a direct correlation with higher T category of MTC (Rho=0.439, P < 0.001), whereas P-MPP-9 was directly correlated with S100 protein and the intensity of calcitonin in tissues (Rho=0.419, P =0.017; Rho=0.422, P =0.016, respectively. Therefore, MMPs were directly correlated with some traditional biomarkers of MTC. In this regard, P-MMP-2 was more expressed in type 2 MTC. Combining the analysis of traditional and other useful biomarkers of MTC as MMPs 2 and 9 could be a useful strategy in the diagnostic of MTC.
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Affiliation(s)
- Héctor Vázquez-Lorente
- Department of Physiology, School of Pharmacy, Institute of Nutrition and Food Technology "José Mataix," University of Granada, Granada, Spain
| | | | | | | | - Cláudio M Gomes
- Institute of Biosystems & Integrative Sciences
- Department of Chemistry and Biochemistry, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
| | - Ivan R Paunović
- Faculty of Medicine, University of Belgrade
- Center for Endocrine Surgery, Clinical Center of Serbia
| | - Vesna Dragutinović
- Institute of Chemistry in Medicine, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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Figueira AJ, Saavedra J, Cardoso I, Gomes CM. S100B chaperone multimers suppress the formation of oligomers during Aβ42 aggregation. Front Neurosci 2023; 17:1162741. [PMID: 37025373 PMCID: PMC10070764 DOI: 10.3389/fnins.2023.1162741] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 03/06/2023] [Indexed: 04/08/2023] Open
Abstract
Extracellular aggregation of the amyloid-β 1-42 (Aβ42) peptide is a major hallmark of Alzheimer's disease (AD), with recent data suggesting that Aβ intermediate oligomers (AβO) are more cytotoxic than mature amyloid fibrils. Understanding how chaperones harness such amyloid oligomers is critical toward establishing the mechanisms underlying regulation of proteostasis in the diseased brain. This includes S100B, an extracellular signaling Ca2+-binding protein which is increased in AD as a response to neuronal damage and whose holdase-type chaperone activity was recently unveiled. Driven by this evidence, we here investigate how different S100B chaperone multimers influence the formation of oligomers during Aβ42 fibrillation. Resorting to kinetic analysis coupled with simulation of AβO influx distributions, we establish that supra-stoichiometric ratios of dimeric S100B-Ca2+ drastically decrease Aβ42 oligomerization rate by 95% and AβO levels by 70% due to preferential inhibition of surface-catalyzed secondary nucleation, with a concomitant redirection of aggregation toward elongation. We also determined that sub-molar ratios of tetrameric apo-S100B decrease Aβ42 oligomerization influx down to 10%, while precluding both secondary nucleation and, more discreetly, fibril elongation. Coincidently, the mechanistic predictions comply with the independent screening of AβO using a combination of the thioflavin-T and X-34 fluorophores. Altogether, our findings illustrate that different S100B multimers act as complementary suppressors of Aβ42 oligomerization and aggregation, further underpinning their potential neuroprotective role in AD.
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Affiliation(s)
- António J. Figueira
- BioISI–Instituto de Biosistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Joana Saavedra
- i3S–Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- IBMC–Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- ICBAS–Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Isabel Cardoso
- i3S–Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- IBMC–Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- ICBAS–Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Cláudio M. Gomes
- BioISI–Instituto de Biosistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- *Correspondence: Cláudio M. Gomes,
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Vázquez-Lorente H, Dundjerović DM, Tatić SB, Rodríguez-Menéndez S, González-Iglesias H, Gomes CM, Paunović IR, Dragutinović VV. Relationship between Trace Elements and Matrix Metalloproteinases 2 and 9 and their Tissue Inhibitors in Medullary Thyroid Carcinoma. Biol Trace Elem Res 2022; 201:3225-3232. [PMID: 36156766 PMCID: PMC10160158 DOI: 10.1007/s12011-022-03431-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 09/19/2022] [Indexed: 11/02/2022]
Abstract
Medullary Thyroid Carcinoma (MTC) constitutes around 5% of all thyroid cancers. Trace elements assessment has emerged as a useful strategy in the diagnostics of MTC combined with Matrix Metalloproteinases (MMPs) and Tissue Inhibitors of Matrix Metalloproteinases (TIMPs) analysis. The aim of this study was to compare the presence and content of trace elements (i.e., Copper (Cu), Zinc (Zn), Iron (Fe), and Manganese (Mn)) in MTC with respect to control samples and their potential relationship with markers of MTC in tissues. The study included 26 patients who had undergone thyroidectomy, due to the diagnosis of MTC and 17 patients as control. We combined tumour pathology and staging, immunohistochemical analysis of calcitonin, MMPs, and TIMPs, with analytical biochemistry using Inductively Coupled Plasma - Mass Spectrometry (ICP-MS) to determine the levels of trace elements. No differences by MTC type for MMPs and their TIPMs, although strong TIMP-1 and TIMP-2 immunohistochemical expression of MTC were unveiled. Additionally, Zn, Fe, and Mn tended to be decreased, and Cu to be increased in samples presenting MTC with respect to controls. Moreover, Zn was the unique trace element which seemed to be correlated with MMPs and TIMPs. Trace elements such as Zn, Fe, and Mn are decreased in tissues affected by MTC. In addition, Zn may be the trace element which saves more relationship with the proportion and intensity of MMPs, being considered altogether useful biomarkers of MTC. We therefore suggest the analysis of novel and traditional markers of MTC as a novel approach in this pathology.
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Affiliation(s)
| | - Duško M Dundjerović
- Institute of Pathology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Svetislav B Tatić
- Institute of Pathology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Sara Rodríguez-Menéndez
- Instituto Universitario Fernández-Vega (Fundación de Investigación Oftalmológica, Universidad de Oviedo), Oviedo, Spain
| | - Héctor González-Iglesias
- Instituto Universitario Fernández-Vega (Fundación de Investigación Oftalmológica, Universidad de Oviedo), Oviedo, Spain
- Instituto de Productos Lácteos de Asturias, Consejo Superior de Investigaciones Científicas (IPLA-CSIC), Villaviciosa, Spain
| | - Cláudio M Gomes
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- Departamento de Química E Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Ivan R Paunović
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
- Center for Endocrine Surgery, Clinical Centre of Serbia, Belgrade, Serbia
| | - Vesna V Dragutinović
- Institute of Chemistry in Medicine, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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9
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Figueira AJ, Moreira GG, Saavedra J, Cardoso I, Gomes CM. Tetramerization of the S100B Chaperone Spawns a Ca 2+ Independent Regulatory Surface that Enhances Anti-aggregation Activity and Client Specificity. J Mol Biol 2022; 434:167791. [PMID: 35970403 DOI: 10.1016/j.jmb.2022.167791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 08/07/2022] [Accepted: 08/09/2022] [Indexed: 10/15/2022]
Abstract
Alzheimer's disease (AD) hallmarks include the aggregation of amyloid-β (Aβ), tau and neuroinflammation promoted by several alarmins. Among these is S100B, a small astrocytic homodimeric protein, upregulated in AD, whose multiple biological activities depend on localization, concentration, and assembly state. S100B was reported to inhibit the aggregation and toxicity of Aβ42 and tau similarly to a holdase-type chaperone. This activity is dependent of Ca2+-binding, which triggers the exposure of a regulatory binding cleft at the S100B dimer interface with which amyloidogenic clients dynamically interact. Although the dimer prevails, a significant portion of secreted S100B in the human brain occurs as higher order multimers, whose protective functions remain uncharacterized and which we here investigate. Resorting to ThT-monitored aggregation kinetics, we determined that unlike the dimer, tetrameric S100B inhibits Aβ42 aggregation at sub/equimolar ratios, an effect that persists in the absence of Ca2+ binding. Structural analysis revealed that S100B tetramerization spawns a novel extended cleft accommodating an aggregation-prone surface that mediates interactions with monomeric Aβ client via hydrophobic interactions, as corroborated by Bis-ANS fluorescence and docking analysis. Correspondingly, at high ionic strength that reduces solvation and favours hydrophobic contacts, the inhibition of Aβ42 aggregation by tetrameric S100B is 3-fold increased. Interestingly, this extended Ca2+-independent surface favours Aβ42 as substrate, as tau K18 aggregation is not inhibited by the apo tetramer. Overall, results illustrate a mechanism through which oligomerization of the S100B chaperone fine-tunes anti-aggregation activity and client specificity, highlighting the potential functional relevance of S100B multimers in the regulation of AD proteotoxicity.
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Affiliation(s)
- António J Figueira
- BioISI - Instituto de Biosistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal. https://twitter.com/Antonio27902425
| | - Guilherme G Moreira
- BioISI - Instituto de Biosistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal. https://twitter.com/GuilhermeGilMo1
| | - Joana Saavedra
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Portugal
| | - Isabel Cardoso
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Portugal
| | - Cláudio M Gomes
- BioISI - Instituto de Biosistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal.
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10
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Ammendola S, Secli V, Pacello F, Mastropasqua MC, Romão MA, Gomes CM, Battistoni A. Zinc-binding metallophores protect Pseudomonas aeruginosa from calprotectin-mediated metal starvation. FEMS Microbiol Lett 2022; 369:6650350. [PMID: 35883222 DOI: 10.1093/femsle/fnac071] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/10/2022] [Accepted: 07/22/2022] [Indexed: 11/12/2022] Open
Abstract
Pseudomonas aeruginosa is known to exhibit considerable resistance to the antimicrobial activity of the metal-sequestering protein Calprotectin (CP). In this study we demonstrate that, although CP induces zinc deficiency in P. aeruginosa, a strain unable to import zinc through the two most important metal acquisition systems, namely ZnuABC and ZrmABCD, maintains significant growth capacity in the presence of high concentrations of CP. Furthermore, we have shown that nicotianamine, a molecule structurally similar to the metallophore pseudopaline, can favor the acquisition of the metal even in the presence of CP. To gain insights into the mechanisms through which metallophores can promote zinc acquisition, we analyzed the effect of nicotianamine on the activity of the metallo-β-lactamase VIM-1. Our data suggest that metallophores released by bacteria in response to zinc deficiency can extract the protein-bound metal. The ability to interfere with the binding of metals to proteins, as well as favoring the acquisition of zinc, may contribute to increasing the resistance of P. aeruginosa to the antimicrobial action of CP.
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Affiliation(s)
- Serena Ammendola
- Department of Biology, Università of Rome ''Tor Vergata'', Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Valerio Secli
- Department of Biology, Università of Rome ''Tor Vergata'', Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Francesca Pacello
- Department of Biology, Università of Rome ''Tor Vergata'', Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Maria Chiara Mastropasqua
- Department of Biology, Università of Rome ''Tor Vergata'', Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Mariana A Romão
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal.,Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Cláudio M Gomes
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal.,Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Andrea Battistoni
- Department of Biology, Università of Rome ''Tor Vergata'', Via della Ricerca Scientifica, 00133 Rome, Italy
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11
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Bhatt DP, Mills CA, Anderson KA, Henriques BJ, Lucas TG, Francisco S, Liu J, Ilkayeva OR, Adams AE, Kulkarni SR, Backos DS, Major MB, Grimsrud PA, Gomes CM, Hirschey MD. Deglutarylation of glutaryl-CoA dehydrogenase by deacylating enzyme SIRT5 promotes lysine oxidation in mice. J Biol Chem 2022; 298:101723. [PMID: 35157847 PMCID: PMC8969154 DOI: 10.1016/j.jbc.2022.101723] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 01/23/2022] [Accepted: 01/24/2022] [Indexed: 11/28/2022] Open
Abstract
A wide range of protein acyl modifications has been identified on enzymes across various metabolic processes; however, the impact of these modifications remains poorly understood. Protein glutarylation is a recently identified modification that can be nonenzymatically driven by glutaryl-CoA. In mammalian systems, this unique metabolite is only produced in the lysine and tryptophan oxidative pathways. To better understand the biology of protein glutarylation, we studied the relationship between enzymes within the lysine/tryptophan catabolic pathways, protein glutarylation, and regulation by the deglutarylating enzyme sirtuin 5 (SIRT5). Here, we identify glutarylation on the lysine oxidation pathway enzyme glutaryl-CoA dehydrogenase (GCDH) and show increased GCDH glutarylation when glutaryl-CoA production is stimulated by lysine catabolism. Our data reveal that glutarylation of GCDH impacts its function, ultimately decreasing lysine oxidation. We also demonstrate the ability of SIRT5 to deglutarylate GCDH, restoring its enzymatic activity. Finally, metabolomic and bioinformatic analyses indicate an expanded role for SIRT5 in regulating amino acid metabolism. Together, these data support a feedback loop model within the lysine/tryptophan oxidation pathway in which glutaryl-CoA is produced, in turn inhibiting GCDH function via glutaryl modification of GCDH lysine residues and can be relieved by SIRT5 deacylation activity.
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12
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Gomes CM, Hoyer W, Luo J. Editorial: The Biochemistry of Amyloids in Neurodegenerative Diseases, Volume I. Front Neurosci 2021; 15:819481. [PMID: 34975394 PMCID: PMC8716446 DOI: 10.3389/fnins.2021.819481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Accepted: 11/29/2021] [Indexed: 11/26/2022] Open
Affiliation(s)
- Cláudio M. Gomes
- Faculdade de Ciências, Biosystems and Integrative Sciences Institute, Universidade de Lisboa, Lisbon, Portugal
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- *Correspondence: Cláudio M. Gomes
| | - Wolfgang Hoyer
- Institute of Physical Biology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Institute of Biological Information Processing (IBI-7) and Jülich Center for Structural Biology, Forschungszentrum Jülich, Jülich, Germany
- Wolfgang Hoyer
| | - Jinghui Luo
- Department of Biology and Chemistry, Paul Scherrer Institute, Villigen, Switzerland
- Jinghui Luo
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13
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Ribeiro SS, Castro TG, Gomes CM, Marcos JC. Hofmeister effects on protein stability are dependent on the nature of the unfolded state. Phys Chem Chem Phys 2021; 23:25210-25225. [PMID: 34730580 DOI: 10.1039/d1cp02477a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interpretation of a salt's effect on protein stability traditionally discriminates low concentration regimes (<0.3 M), dominated by electrostatic forces, and high concentration regimes, generally described by ion-specific Hofmeister effects. However, increased theoretical and experimental studies have highlighted observations of the Hofmeister phenomena at concentration ranges as low as 0.001 M. Reasonable quantitative predictions of such observations have been successfully achieved throughout the inclusion of ion dispersion forces in classical electrostatic theories. This molecular description is also on the basis of quantitative estimates obtained resorting to surface/bulk solvent partition models developed for ion-specific Hofmeister effects. However, the latter are limited by the availability of reliable structures representative of the unfolded state. Here, we use myoglobin as a model to explore how ion-dependency on the nature of the unfolded state affects protein stability, combining spectroscopic techniques with molecular dynamic simulations. To this end, the thermal and chemical stability of myoglobin was assessed in the presence of three different salts (NaCl, (NH4)2SO4 and Na2SO4), at physiologically relevant concentrations (0-0.3 M). We observed mild destabilization of the native state induced by each ion, attributed to unfavorable neutralization and hydrogen-bonding with the protein side-chains. Both effects, combined with binding of Na+, Cl- and SO42- to the thermally unfolded state, resulted in an overall destabilization of the protein. Contrastingly, ion binding was hindered in the chemically unfolded conformation, due to occupation of the binding sites by urea molecules. Such mechanistic action led to a lower degree of destabilization, promoting surface tension effects that stabilized myoglobin according to the Hofmeister series. Therefore, we demonstrate that Hofmeister effects on protein stability are modulated by the heterogeneous physico-chemical nature of the unfolded state. Altogether, our findings evidence the need to characterize the structure of the unfolded state when attempting to dissect the molecular mechanisms underlying the effects of salts on protein stability.
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Affiliation(s)
- Sara S Ribeiro
- Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
| | - Tarsila G Castro
- Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Cláudio M Gomes
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências and Departamento de Química e Bioquímica, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - João C Marcos
- Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
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14
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Moreira GG, Cantrelle FX, Quezada A, Carvalho FS, Cristóvão JS, Sengupta U, Puangmalai N, Carapeto AP, Rodrigues MS, Cardoso I, Fritz G, Herrera F, Kayed R, Landrieu I, Gomes CM. Dynamic interactions and Ca 2+-binding modulate the holdase-type chaperone activity of S100B preventing tau aggregation and seeding. Nat Commun 2021; 12:6292. [PMID: 34725360 PMCID: PMC8560819 DOI: 10.1038/s41467-021-26584-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 10/15/2021] [Indexed: 11/21/2022] Open
Abstract
The microtubule-associated protein tau is implicated in the formation of oligomers and fibrillar aggregates that evade proteostasis control and spread from cell-to-cell. Tau pathology is accompanied by sustained neuroinflammation and, while the release of alarmin mediators aggravates disease at late stages, early inflammatory responses encompass protective functions. This is the case of the Ca2+-binding S100B protein, an astrocytic alarmin which is augmented in AD and which has been recently implicated as a proteostasis regulator, acting over amyloid β aggregation. Here we report the activity of S100B as a suppressor of tau aggregation and seeding, operating at sub-stoichiometric conditions. We show that S100B interacts with tau in living cells even in microtubule-destabilizing conditions. Structural analysis revealed that tau undergoes dynamic interactions with S100B, in a Ca2+-dependent manner, notably with the aggregation prone repeat segments at the microtubule binding regions. This interaction involves contacts of tau with a cleft formed at the interface of the S100B dimer. Kinetic and mechanistic analysis revealed that S100B inhibits the aggregation of both full-length tau and of the microtubule binding domain, and that this proceeds through effects over primary and secondary nucleation, as confirmed by seeding assays and direct observation of S100B binding to tau oligomers and fibrils. In agreement with a role as an extracellular chaperone and its accumulation near tau positive inclusions, we show that S100B blocks proteopathic tau seeding. Together, our findings establish tau as a client of the S100B chaperone, providing evidence for neuro-protective functions of this inflammatory mediator across different tauopathies. The calcium binding protein S100B is an abundantly expressed protein in the brain and has neuro-protective functions by inhibiting Aβ aggregation and metal ion toxicity. Here, the authors combine cell biology and biochemical experiments with chemical kinetics and NMR measurements and show that S100B protein is an extracellular Tau chaperone and further characterize the interactions between S100B and Tau.
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Affiliation(s)
- Guilherme G Moreira
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal.,Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - François-Xavier Cantrelle
- CNRS ERL9002 Integrative Structural Biology, F-59000, Lille, France.,Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, F-59000, Lille, France
| | - Andrea Quezada
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal.,Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Filipa S Carvalho
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal.,Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Joana S Cristóvão
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal.,Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Urmi Sengupta
- Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, 301 University Blvd, Medical Research Building, Room 10.138C, Galveston, TX, 77555-1045, USA.,Departments of Neurology, Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX, USA
| | - Nicha Puangmalai
- Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, 301 University Blvd, Medical Research Building, Room 10.138C, Galveston, TX, 77555-1045, USA.,Departments of Neurology, Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX, USA
| | - Ana P Carapeto
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal.,Departamento de Física, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Mário S Rodrigues
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal.,Departamento de Física, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Isabel Cardoso
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar (ICBAS), 4050-013, Porto, Portugal
| | - Güenter Fritz
- Institute of Biology, Department of Cellular Microbiology, University of Hohenheim, Stuttgart, 70599, Germany
| | - Federico Herrera
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal.,Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Rakez Kayed
- Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, 301 University Blvd, Medical Research Building, Room 10.138C, Galveston, TX, 77555-1045, USA.,Departments of Neurology, Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX, USA
| | - Isabelle Landrieu
- CNRS ERL9002 Integrative Structural Biology, F-59000, Lille, France.,Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, F-59000, Lille, France
| | - Cláudio M Gomes
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal. .,Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal.
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15
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Loera-Valencia R, Ismail MAM, Goikolea J, Lodeiro M, Mateos L, Björkhem I, Puerta E, Romão MA, Gomes CM, Merino-Serrais P, Maioli S, Cedazo-Minguez A. Hypercholesterolemia and 27-Hydroxycholesterol Increase S100A8 and RAGE Expression in the Brain: a Link Between Cholesterol, Alarmins, and Neurodegeneration. Mol Neurobiol 2021; 58:6063-6076. [PMID: 34449045 PMCID: PMC8639576 DOI: 10.1007/s12035-021-02521-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 08/04/2021] [Indexed: 12/20/2022]
Abstract
Alterations in cholesterol metabolism in the brain have a major role in the physiology of Alzheimer's disease (AD). Oxysterols are cholesterol metabolites with multiple implications in memory functions and in neurodegeneration. Previous studies have shown detrimental effects of cholesterol metabolites in neurons, but its effect in glial cells is unknown. We used a high-fat/high-cholesterol diet in mice to study the effects of hypercholesterolemia over the alarmin S100A8 cascade in the hippocampus. Using CYP27Tg, a transgenic mouse model, we show that the hypercholesterolemia influence on the brain is mediated by the excess of 27-hydroxycholesterol (27-OH), a cholesterol metabolite. We also employed an acute model of 27-OH intraventricular injection in the brain to study RAGE and S100A8 response. We used primary cultures of neurons and astrocytes to study the effect of high levels of 27-OH over the S100A8 alarmin cascade. We report that a high-fat/high-cholesterol diet leads to an increase in S100A8 production in the brain. In CYP27Tg, we report an increase of S100A8 and its receptor RAGE in the hippocampus under elevated 27-OH in the brain. Using siRNA, we found that 27-OH upregulation of RAGE in astrocytes and neurons is mediated by the nuclear receptor RXRγ. Silencing RXRγ in neurons prevented 27-OH-mediated upregulation of RAGE. These results show that S100A8 alarmin and RAGE respond to high levels of 27-OH in the brain in both neurons and astrocytes through RXRγ. Our study supports the notion that 27-OH mediates detrimental effects of hypercholesterolemia to the brain via alarmin signaling.
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Affiliation(s)
- Raúl Loera-Valencia
- Division of Neurogeriatrics, Department of Neurobiology Care Sciences and Society, Center for Alzheimer Research, Karolinska Institutet, Stockholm, Sweden.
| | - Muhammad-Al-Mustafa Ismail
- Division of Neurogeriatrics, Department of Neurobiology Care Sciences and Society, Center for Alzheimer Research, Karolinska Institutet, Stockholm, Sweden
| | - Julen Goikolea
- Division of Neurogeriatrics, Department of Neurobiology Care Sciences and Society, Center for Alzheimer Research, Karolinska Institutet, Stockholm, Sweden
| | - Maria Lodeiro
- Division of Neurogeriatrics, Department of Neurobiology Care Sciences and Society, Center for Alzheimer Research, Karolinska Institutet, Stockholm, Sweden
| | - Laura Mateos
- Division of Neurogeriatrics, Department of Neurobiology Care Sciences and Society, Center for Alzheimer Research, Karolinska Institutet, Stockholm, Sweden
| | - Ingemar Björkhem
- Division of Clinical Chemistry, Department of Laboratory Medicine, Karolinska University Hospital, Huddinge, Sweden
| | - Elena Puerta
- Division of Neurogeriatrics, Department of Neurobiology Care Sciences and Society, Center for Alzheimer Research, Karolinska Institutet, Stockholm, Sweden.,Department of Pharmacology and Toxicology, University of Navarra, Pamplona, Spain
| | - Mariana A Romão
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016, Lisboa, Portugal.,Departamento de Química E Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016, Lisboa, Portugal
| | - Cláudio M Gomes
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016, Lisboa, Portugal.,Departamento de Química E Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016, Lisboa, Portugal
| | - Paula Merino-Serrais
- Division of Neurogeriatrics, Department of Neurobiology Care Sciences and Society, Center for Alzheimer Research, Karolinska Institutet, Stockholm, Sweden.,Laboratorio Cajal de Circuitos Corticales (CTB), Universidad Politécnica de Madrid, Madrid, Spain.,Departamento de Neurobiología Funcional y de Sistemas, Instituto Cajal, CSIC, Madrid, Spain
| | - Silvia Maioli
- Division of Neurogeriatrics, Department of Neurobiology Care Sciences and Society, Center for Alzheimer Research, Karolinska Institutet, Stockholm, Sweden
| | - Angel Cedazo-Minguez
- Division of Neurogeriatrics, Department of Neurobiology Care Sciences and Society, Center for Alzheimer Research, Karolinska Institutet, Stockholm, Sweden.
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16
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Cristóvão JS, Moreira GG, Rodrigues FEP, Carapeto AP, Rodrigues MS, Cardoso I, Ferreira AEN, Machuqueiro M, Fritz G, Gomes CM. Cu 2+-binding to S100B triggers polymerization of disulfide cross-linked tetramers with enhanced chaperone activity against amyloid-β aggregation. Chem Commun (Camb) 2021; 57:379-382. [PMID: 33326534 DOI: 10.1039/d0cc06842j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
S100B is an extracellular protein implicated in Alzheimer's Disease and a suppressor of amyloid-β aggregation. Herein we report a mechanism tying Cu2+ binding to a change in assembly state yielding disulfide cross-linked oligomers with higher anti-aggregation activity. This chemical control of chaperone function illustrates a regulatory process relevant under metal and proteostasis dysfunction as in neurodegeneration.
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Affiliation(s)
- Joana S Cristóvão
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal.
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17
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Cristóvão JS, Romão MA, Gallardo R, Schymkowitz J, Rousseau F, Gomes CM. Targeting S100B with Peptides Encoding Intrinsic Aggregation-Prone Sequence Segments. Molecules 2021; 26:molecules26020440. [PMID: 33467751 PMCID: PMC7830867 DOI: 10.3390/molecules26020440] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 01/12/2021] [Accepted: 01/12/2021] [Indexed: 12/11/2022] Open
Abstract
S100 proteins assume a diversity of oligomeric states including large order self-assemblies, with an impact on protein structure and function. Previous work has uncovered that S100 proteins, including S100B, are prone to undergo β-aggregation under destabilizing conditions. This propensity is encoded in aggregation-prone regions (APR) mainly located in segments at the homodimer interface, and which are therefore mostly shielded from the solvent and from deleterious interactions, under native conditions. As in other systems, this characteristic may be used to develop peptides with pharmacological potential that selectively induce the aggregation of S100B through homotypic interactions with its APRs, resulting in functional inhibition through a loss of function. Here we report initial studies towards this goal. We applied the TANGO algorithm to identify specific APR segments in S100B helix IV and used this information to design and synthesize S100B-derived APR peptides. We then combined fluorescence spectroscopy, transmission electron microscopy, biolayer interferometry, and aggregation kinetics and determined that the synthetic peptides have strong aggregation propensity, interact with S100B, and may promote co-aggregation reactions. In this framework, we discuss the considerable potential of such APR-derived peptides to act pharmacologically over S100B in numerous physiological and pathological conditions, for instance as modifiers of the S100B interactome or as promoters of S100B inactivation by selective aggregation.
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Affiliation(s)
- Joana S. Cristóvão
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal; (J.S.C.); (M.A.R.)
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal
| | - Mariana A. Romão
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal; (J.S.C.); (M.A.R.)
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal
| | - Rodrigo Gallardo
- VIB Switch Laboratory, Flanders Institute for Biotechnology (VIB), 3000 Leuven, Belgium;
- Switch Laboratory, Department of Cellular and Molecular Medicine, KU Leuven, Herestraat 49, PB 802, 3000 Leuven, Belgium
| | - Joost Schymkowitz
- VIB Switch Laboratory, Flanders Institute for Biotechnology (VIB), 3000 Leuven, Belgium;
- Switch Laboratory, Department of Cellular and Molecular Medicine, KU Leuven, Herestraat 49, PB 802, 3000 Leuven, Belgium
- Correspondence: (C.M.G.); (F.R.); (J.S.)
| | - Frederic Rousseau
- VIB Switch Laboratory, Flanders Institute for Biotechnology (VIB), 3000 Leuven, Belgium;
- Switch Laboratory, Department of Cellular and Molecular Medicine, KU Leuven, Herestraat 49, PB 802, 3000 Leuven, Belgium
- Correspondence: (C.M.G.); (F.R.); (J.S.)
| | - Cláudio M. Gomes
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal; (J.S.C.); (M.A.R.)
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal
- Correspondence: (C.M.G.); (F.R.); (J.S.)
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18
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Henriques BJ, Katrine Jentoft Olsen R, Gomes CM, Bross P. Electron transfer flavoprotein and its role in mitochondrial energy metabolism in health and disease. Gene 2021; 776:145407. [PMID: 33450351 DOI: 10.1016/j.gene.2021.145407] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 12/08/2020] [Accepted: 12/16/2020] [Indexed: 12/15/2022]
Abstract
Electron transfer flavoprotein (ETF) is an enzyme with orthologs from bacteria to humans. Human ETF is nuclear encoded by two separate genes, ETFA and ETFB, respectively. After translation, the two subunits are imported to the mitochondrial matrix space and assemble into a heterodimer containing one FAD and one AMP as cofactors. ETF functions as a hub taking up electrons from at least 14 flavoenzymes, feeding them into the respiratory chain. This represents a major source of reducing power for the electron transport chain from fatty acid oxidation and amino acid degradation. Transfer of electrons from the donor enzymes to ETF occurs by direct transfer between the enzyme bound flavins, a process that is tightly regulated by the polypeptide chain and by protein:protein interactions. ETF, in turn relays electrons to the iron sulfur cluster of the inner membrane protein ETF:QO, from where they travel via the FAD in ETF:QO to ubiquinone, entering the respiratory chain at the level of complex III. ETF recognizes its dehydrogenase partners via a recognition loop that anchors the protein on its partner followed by dynamic movements of the ETF flavin domain that bring redox cofactors in close proximity, thus promoting electron transfer. Genetic mutations in the ETFA or ETFB genes cause the Mendelian disorder multiple acyl-CoA dehydrogenase deficiency (MADD; OMIM #231680). We here review the knowledge on human ETF and investigations of the effects of disease-associated missense mutations in this protein that have promoted the understanding of the essential role that ETF plays in cellular metabolism and human disease.
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Affiliation(s)
- Bárbara J Henriques
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal.
| | - Rikke Katrine Jentoft Olsen
- Research Unit for Molecular Medicine, Department of Clinical Medicine, Aarhus University and Aarhus University Hospital, 8200 Aarhus, Denmark.
| | - Cláudio M Gomes
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal.
| | - Peter Bross
- Research Unit for Molecular Medicine, Department of Clinical Medicine, Aarhus University and Aarhus University Hospital, 8200 Aarhus, Denmark.
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19
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Martins PM, Navarro S, Silva A, Pinto MF, Sárkány Z, Figueiredo F, Pereira PJB, Pinheiro F, Bednarikova Z, Burdukiewicz M, Galzitskaya OV, Gazova Z, Gomes CM, Pastore A, Serpell LC, Skrabana R, Smirnovas V, Ziaunys M, Otzen DE, Ventura S, Macedo-Ribeiro S. MIRRAGGE - Minimum Information Required for Reproducible AGGregation Experiments. Front Mol Neurosci 2020; 13:582488. [PMID: 33328883 PMCID: PMC7729192 DOI: 10.3389/fnmol.2020.582488] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 10/23/2020] [Indexed: 12/12/2022] Open
Abstract
Reports on phase separation and amyloid formation for multiple proteins and aggregation-prone peptides are recurrently used to explore the molecular mechanisms associated with several human diseases. The information conveyed by these reports can be used directly in translational investigation, e.g., for the design of better drug screening strategies, or be compiled in databases for benchmarking novel aggregation-predicting algorithms. Given that minute protocol variations determine different outcomes of protein aggregation assays, there is a strong urge for standardized descriptions of the different types of aggregates and the detailed methods used in their production. In an attempt to address this need, we assembled the Minimum Information Required for Reproducible Aggregation Experiments (MIRRAGGE) guidelines, considering first-principles and the established literature on protein self-assembly and aggregation. This consensus information aims to cover the major and subtle determinants of experimental reproducibility while avoiding excessive technical details that are of limited practical interest for non-specialized users. The MIRRAGGE table (template available in Supplementary Information) is useful as a guide for the design of new studies and as a checklist during submission of experimental reports for publication. Full disclosure of relevant information also enables other researchers to reproduce results correctly and facilitates systematic data deposition into curated databases.
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Affiliation(s)
- Pedro M Martins
- Instituto de Biologia Molecular e Celular and Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Susanna Navarro
- Institut de Biotecnologia i Biomedicina - Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Alexandra Silva
- Instituto de Biologia Molecular e Celular and Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Maria F Pinto
- Instituto de Biologia Molecular e Celular and Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Zsuzsa Sárkány
- Instituto de Biologia Molecular e Celular and Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Francisco Figueiredo
- Instituto de Biologia Molecular e Celular and Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal.,International Iberian Nanotechnology Laboratory - Department of Atomic Structure - Composition of Materials, Braga, Portugal
| | - Pedro José Barbosa Pereira
- Instituto de Biologia Molecular e Celular and Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Francisca Pinheiro
- Institut de Biotecnologia i Biomedicina - Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Zuzana Bednarikova
- Department of Biophysics, Institute of Experimental Physics, Slovak Academy of Sciences, Kosice, Slovakia
| | - Michał Burdukiewicz
- Faculty of Mathematics and Information Science, Warsaw University of Technology, Warsaw, Poland
| | - Oxana V Galzitskaya
- Institute of Protein Research, Russian Academy of Sciences, Pushchino, Russia.,Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - Zuzana Gazova
- Department of Biophysics, Institute of Experimental Physics, Slovak Academy of Sciences, Kosice, Slovakia
| | - Cláudio M Gomes
- Biosystems and Integrative Sciences Institute and Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Annalisa Pastore
- UK-DRI Centre at King's College London, the Maurice Wohl Clinical Neuroscience Institute, London, United Kingdom
| | - Louise C Serpell
- Sussex Neuroscience, School of Life Sciences, University of Sussex, Brighton, United Kingdom
| | - Rostislav Skrabana
- Department of Neuroimmunology, Axon Neuroscience R&D Services SE, Bratislava, Slovakia.,Institute of Neuroimmunology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Vytautas Smirnovas
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Mantas Ziaunys
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Daniel E Otzen
- Interdisciplinary Nanoscience Center (iNANO) and Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Salvador Ventura
- Institut de Biotecnologia i Biomedicina - Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Sandra Macedo-Ribeiro
- Instituto de Biologia Molecular e Celular and Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
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20
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de Matos AM, Blázquez-Sánchez MT, Bento-Oliveira A, de Almeida RFM, Nunes R, Lopes PEM, Machuqueiro M, Cristóvão JS, Gomes CM, Souza CS, El Idrissi IG, Colabufo NA, Diniz A, Marcelo F, Oliveira MC, López Ó, Fernandez-Bolaños JG, Dätwyler P, Ernst B, Ning K, Garwood C, Chen B, Rauter AP. Glucosylpolyphenols as Inhibitors of Aβ-Induced Fyn Kinase Activation and Tau Phosphorylation: Synthesis, Membrane Permeability, and Exploratory Target Assessment within the Scope of Type 2 Diabetes and Alzheimer's Disease. J Med Chem 2020; 63:11663-11690. [PMID: 32959649 DOI: 10.1021/acs.jmedchem.0c00841] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Despite the rapidly increasing number of patients suffering from type 2 diabetes, Alzheimer's disease, and diabetes-induced dementia, there are no disease-modifying therapies that are able to prevent or block disease progress. In this work, we investigate the potential of nature-inspired glucosylpolyphenols against relevant targets, including islet amyloid polypeptide, glucosidases, and cholinesterases. Moreover, with the premise of Fyn kinase as a paradigm-shifting target in Alzheimer's drug discovery, we explore glucosylpolyphenols as blockers of Aβ-induced Fyn kinase activation while looking into downstream effects leading to Tau hyperphosphorylation. Several compounds inhibit Aβ-induced Fyn kinase activation and decrease pTau levels at 10 μM concentration, particularly the per-O-methylated glucosylacetophloroglucinol and the 4-glucosylcatechol dibenzoate, the latter inhibiting also butyrylcholinesterase and β-glucosidase. Both compounds are nontoxic with ideal pharmacokinetic properties for further development. This work ultimately highlights the multitarget nature, fine structural tuning capacity, and valuable therapeutic significance of glucosylpolyphenols in the context of these metabolic and neurodegenerative disorders.
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Affiliation(s)
- Ana M de Matos
- Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa 1749-016, Portugal
| | - M Teresa Blázquez-Sánchez
- Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa 1749-016, Portugal
| | - Andreia Bento-Oliveira
- Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa 1749-016, Portugal
| | - Rodrigo F M de Almeida
- Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa 1749-016, Portugal
| | - Rafael Nunes
- Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa 1749-016, Portugal.,Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa 1749-016, Portugal
| | - Pedro E M Lopes
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa 1749-016, Portugal
| | - Miguel Machuqueiro
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa 1749-016, Portugal
| | - Joana S Cristóvão
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa 1749-016, Portugal
| | - Cláudio M Gomes
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa 1749-016, Portugal
| | - Cleide S Souza
- Department of Chemistry, The University of Sheffield, Dainton Building, Brook Hill, Sheffield S3 7HF, United Kingdom
| | - Imane G El Idrissi
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "A. Moro", Via Orabona, 4, 70125 Bari, Italy
| | - Nicola A Colabufo
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "A. Moro", Via Orabona, 4, 70125 Bari, Italy
| | - Ana Diniz
- UCIBIO, REQUIMTE, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica 2829-516, Portugal
| | - Filipa Marcelo
- UCIBIO, REQUIMTE, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica 2829-516, Portugal
| | - M Conceição Oliveira
- Mass Spectrometry Facility at CQE, Insituto Superior Técnico, Av. Rovisco Pais, Lisboa 1049-001, Portugal
| | - Óscar López
- Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, Apartado 1203, Sevilla E-41071, Spain
| | - José G Fernandez-Bolaños
- Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, Apartado 1203, Sevilla E-41071, Spain
| | - Philipp Dätwyler
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, Basel CH-4056, Switzerland
| | - Beat Ernst
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, Basel CH-4056, Switzerland
| | - Ke Ning
- Department of Neuroscience, Sheffield Institute for Translational Neuroscience, The University of Sheffield, Sheffield S10 2HQ, United Kingdom
| | - Claire Garwood
- Department of Neuroscience, Sheffield Institute for Translational Neuroscience, The University of Sheffield, Sheffield S10 2HQ, United Kingdom
| | - Beining Chen
- Department of Chemistry, The University of Sheffield, Dainton Building, Brook Hill, Sheffield S3 7HF, United Kingdom
| | - Amélia P Rauter
- Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa 1749-016, Portugal
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21
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Cristóvão JS, Figueira AJ, Carapeto AP, Rodrigues MS, Cardoso I, Gomes CM. The S100B Alarmin Is a Dual-Function Chaperone Suppressing Amyloid-β Oligomerization through Combined Zinc Chelation and Inhibition of Protein Aggregation. ACS Chem Neurosci 2020; 11:2753-2760. [PMID: 32706972 DOI: 10.1021/acschemneuro.0c00392] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Amyloid beta (Aβ) aggregation and imbalance of metal ions are major hallmarks of Alzheimer's disease (AD). Indeed, amyloid plaques of AD patients are enriched in zinc and Aβ42, and AD related-cognitive decline is dependent on extracellular zinc concentration. In vitro, zinc induces the formation of polymorphic Aβ42 oligomers that delay the formation of amyloid fibers at the expense of increased cellular toxicity. S100B is an inflammatory alarmin and one of the most abundant proteins in the brain and is upregulated in AD and associated with amyloid plaques, where it exerts extracellular functions. Recent findings have uncovered novel neuroprotective functions for S100B as a suppressor of Aβ aggregation and toxicity and in the regulation of zinc homeostasis in neurons. Here we combine biophysical and kinetic approaches to demonstrate that such S100B protective functions converge, making the protein a dual-function chaperone capable of suppressing the formation of toxic Aβ oligomers through both chelation of zinc and inhibition of protein aggregation. From detailed kinetic analysis of Aβ42 aggregation monitoring ThT fluorescence, we show that substoichiometric S100B prevents the formation of toxic off-pathway oligomers that are formed by monomeric Aβ42 in the presence of zinc. Indeed, S100B is effective when added during the lag and transition phases of Aβ42 aggregation, and its action under these circumstances results from its ability to buffer zinc, as it perfectly mimics the effect obtained with the chelating agent EDTA. Further, bioimaging analysis combining transmission electron microscopy and atomic force microscopy confirms that catalytic amounts of S100B partly revert the formation of toxic oligomers. Taken together these results indicate a new role for S100B as a dual chaperone whose distinct functions are interrelated and depend on the relative levels of zinc, S100B, and Aβ, which dynamically evolve during AD.
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Affiliation(s)
- Joana S. Cristóvão
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal
| | - António J. Figueira
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal
| | - Ana P. Carapeto
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal
- Departamento de Física, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal
| | - Mário S. Rodrigues
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal
- Departamento de Física, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal
| | - Isabel Cardoso
- i3S−Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto 4150-180, Portugal
- IBMC−Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto 4150-180, Portugal
| | - Cláudio M. Gomes
- Biosystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal
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22
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Henriques BJ, Lucas TG, Martins E, Gaspar A, Bandeira A, Nogueira C, Brandão O, Rocha H, Vilarinho L, Gomes CM. Molecular and Clinical Investigations on Portuguese Patients with Multiple acyl-CoA Dehydrogenase Deficiency. Curr Mol Med 2020; 19:487-493. [PMID: 31418342 DOI: 10.2174/1566524019666190507114748] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 04/08/2019] [Accepted: 04/09/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Multiple Acyl-CoA Dehydrogenase Deficiency (MADD) is a congenital rare metabolic disease with broad clinical phenotypes and variable evolution. This inborn error of metabolism is caused by mutations in the ETFA, ETFB or ETFDH genes, which encode for the mitochondrial ETF and ETF:QO proteins. A considerable group of patients has been described to respond positively to riboflavin oral supplementation, which constitutes the prototypic treatment for the pathology. OBJECTIVES To report mutations in ETFA, ETFB and ETFDH genes identified in Portuguese patients, correlating, whenever possible, biochemical and clinical outcomes with the effects of mutations on the structure and stability of the affected proteins, to better understand MADD pathogenesis at the molecular level. METHODS MADD patients were identified based on the characteristic urinary profile of organic acids and/or acylcarnitine profiles in blood spots during newborn screening. Genotypic, clinical and biochemical data were collected for all patients. In silico structural analysis was employed using bioinformatic tools carried out in an ETF:QO molecular model for the identified missense mutations. RESULTS A survey describing clinical and biochemical features of eight Portuguese MADD patients was made. Genotype analysis identified five ETFDH mutations, including one extension (p.X618QextX*14), two splice mutations (c.34+5G>C and c.405+3A>T) and two missense mutations (ETF:QO-p.Arg155Gly and ETF:QO-p.Pro534Leu), and one ETFB mutation (ETFβ- p.Arg191Cys). Homozygous patients containing the ETFDH mutations p.X618QextX*14, c.34+5G>C and ETF:QO-p.Arg155Gly, all presented severe (lethal) MADD phenotypes. However, when any of these mutations are in heterozygosity with the known ETF:QO-p.Pro534Leu mild variant, the severe clinical effects are partly and temporarily attenuated. Indeed, the latter destabilizes an ETF-interacting loop, with no major functional consequences. However, the position 155 in ETF:QO is localized at the ubiquinone binding and membrane interacting domain, and is thus expected to perturb protein structure and membrane insertion, with severe functional effects. Structural analysis of molecular models is therefore demonstrated to be a valuable tool to rationalize the effects of mutations in the context of the clinical phenotype severity. CONCLUSION Advanced molecular diagnosis, structural analysis and clinical correlations reveal that MADD patients harboring a severe prognosis mutation in one allele can actually revert to a milder phenotype by complementation with a milder mutation in the other allele. However, such patients are nevertheless in a precarious metabolic balance which can revert to severe fatal outcomes during catabolic stress or secondary pathology, thus requiring strict clinical follow-up.
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Affiliation(s)
- Bárbara J Henriques
- Biosystems and Integrative Sciences Institute, Faculdade de Ciencias, Universidade de Lisboa, and Departamento de Quimica e Bioquimica, Faculdade de Ciencias, 1749-016 Lisboa, Portugal
| | - Tânia G Lucas
- Biosystems and Integrative Sciences Institute, Faculdade de Ciencias, Universidade de Lisboa, and Departamento de Quimica e Bioquimica, Faculdade de Ciencias, 1749-016 Lisboa, Portugal
| | - Esmeralda Martins
- Centro de Referencia na area de Doencas Hereditarias do Metabolismo, Centro Hospitalar do Porto - CHP, Porto, Portugal
| | - Ana Gaspar
- Unidade de Doencas Metabolicas, Centro Hospitalar Lisboa Norte - Hospital Santa Maria, Lisboa, Portugal
| | - Anabela Bandeira
- Centro de Referencia na area de Doencas Hereditarias do Metabolismo, Centro Hospitalar do Porto - CHP, Porto, Portugal
| | - Célia Nogueira
- Unidade de Rastreio Neonatal, Metabolismo e Genetica, Departamento de Genetica Humana - Instituto Nacional de Saude Doutor Ricardo Jorge, Porto, Portugal
| | - Otilia Brandão
- Servico de Patologia Clinica, Hospital Sao Joao, Porto, Portugal
| | - Hugo Rocha
- Unidade de Rastreio Neonatal, Metabolismo e Genetica, Departamento de Genetica Humana - Instituto Nacional de Saude Doutor Ricardo Jorge, Porto, Portugal
| | - Laura Vilarinho
- Unidade de Rastreio Neonatal, Metabolismo e Genetica, Departamento de Genetica Humana - Instituto Nacional de Saude Doutor Ricardo Jorge, Porto, Portugal
| | - Cláudio M Gomes
- Biosystems and Integrative Sciences Institute, Faculdade de Ciencias, Universidade de Lisboa, and Departamento de Quimica e Bioquimica, Faculdade de Ciencias, 1749-016 Lisboa, Portugal
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23
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Lucas TG, Henriques BJ, Gomes CM. Conformational analysis of the riboflavin-responsive ETF:QO-p.Pro456Leu variant associated with mild multiple acyl-CoA dehydrogenase deficiency. Biochim Biophys Acta Proteins Proteom 2020; 1868:140393. [PMID: 32087359 DOI: 10.1016/j.bbapap.2020.140393] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 02/09/2020] [Accepted: 02/17/2020] [Indexed: 01/07/2023]
Abstract
Multiple-CoA dehydrogenase deficiency (MADD) is an inborn disorder of fatty acid and amino acid metabolism caused by mutations in the genes encoding for human electron transfer flavoprotein (ETF) and its partner electron transfer flavoprotein:ubiquinone oxidoreductase (ETF:QO). Albeit a rare disease, extensive newborn screening programs contributed to a wider coverage of MADD genotypes. However, the impact of non-lethal mutations on ETF:QO function remains scarcely understood from a structural perspective. To this end, we here revisit the relatively common MADD mutation ETF:QO-p.Pro456Leu, in order to clarify how it affects enzyme structure and folding. Given the limitation in recombinant expression of human ETF:QO, we resort to its bacterial homologue from Rhodobacter sphaeroides (Rs), in which the corresponding mutation (p.Pro389Leu) was inserted. The in vitro biochemical and biophysical investigations of the Rs ETF:QO-p.Pro389Leu variant showed that, while the mutation does not significantly affect the protein α/β fold, it introduces some plasticity on the tertiary structure and within flavin interactions. Indeed, in the p.Pro389Leu variant, FAD exhibits a higher thermolability during thermal denaturation and a faster rate of release in temperature-induced dissociation experiments, in comparison to the wild type. Therefore, although this clinical mutation occurs in the ubiquinone domain, its effect likely propagates to the nearby FAD binding domain, probably influencing electron transfer and redox potentials. Overall, our results provide a molecular rational for the decreased enzyme activity observed in patients and suggest that compromised FAD interactions in ETF:QO might account for the known riboflavin responsiveness of this mutation.
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Affiliation(s)
- Tânia G Lucas
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Bárbara J Henriques
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Cláudio M Gomes
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal.
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24
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Moreira GG, Cristóvão JS, Torres VM, Carapeto AP, Rodrigues MS, Landrieu I, Cordeiro C, Gomes CM. Zinc Binding to Tau Influences Aggregation Kinetics and Oligomer Distribution. Int J Mol Sci 2019; 20:ijms20235979. [PMID: 31783644 PMCID: PMC6928861 DOI: 10.3390/ijms20235979] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 11/25/2019] [Accepted: 11/25/2019] [Indexed: 12/20/2022] Open
Abstract
Metal ions are well known modulators of protein aggregation and are key players in Alzheimer’s Disease, being found to be associated to pathologic protein deposits in diseased brains. Therefore, understanding how metals influence amyloid aggregation is critical in establishing molecular mechanisms that underlie disease onset and progression. Here, we report data on the interaction of full-length human Tau protein with calcium and zinc ions, evidencing that Tau self-assembly is differently regulated, depending on the type of bound metal ion. We established that Tau binds 4 Zn2+ and 1 Ca2+ per monomer while using native mass spectrometry analysis, without inducing order or substantial conformational changes in the intrinsically disordered Tau, as determined by structural analysis using circular dichroism and Attenuated Total Reflectance-Fourier Transform Infrared (ATR-FTIR) spectroscopies. However, Tau aggregation is found to proceed differently in the calcium- and -zinc bound forms. While the rate of aggregation, as determined from thioflavin-T (ThT) fluorescence kinetics, is highly increased in both cases, the reaction proceeds via different mechanisms, as evidenced by the absence of the lag phase in the reaction of zinc-bound Tau. Monitoring Tau aggregation using native mass spectrometry indeed evidenced a distinct distribution of Tau conformers along the reaction, as confirmed by dynamic light scattering analysis. We propose that such differences arise from zinc binding at distinct locations within the Tau sequence that prompt both the rapid formation of seeding oligomers through interactions at high affinity sites within the repeat domains, as well as amorphous aggregation, through low affinity interactions with residues elsewhere in the sequence, including at the fuzzy coat domain.
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Affiliation(s)
- Guilherme G. Moreira
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal; (G.G.M.); (J.S.C.); (A.P.C.); (M.S.R.)
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal; (V.M.T.); (C.C.)
| | - Joana S. Cristóvão
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal; (G.G.M.); (J.S.C.); (A.P.C.); (M.S.R.)
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal; (V.M.T.); (C.C.)
| | - Vukosava M. Torres
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal; (V.M.T.); (C.C.)
- FTICR e Structural MS laboratory, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal
| | - Ana P. Carapeto
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal; (G.G.M.); (J.S.C.); (A.P.C.); (M.S.R.)
- Departamento de Física, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal
| | - Mário S. Rodrigues
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal; (G.G.M.); (J.S.C.); (A.P.C.); (M.S.R.)
- Departamento de Física, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal
| | - Isabelle Landrieu
- Unité de Glycobiologie Structurale et Fonctionnelle, Université Lille, Centre National de la Recherche Scientifique, UMR 8576, F-59000 Lille, France;
| | - Carlos Cordeiro
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal; (V.M.T.); (C.C.)
- FTICR e Structural MS laboratory, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal
| | - Cláudio M. Gomes
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal; (G.G.M.); (J.S.C.); (A.P.C.); (M.S.R.)
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade Lisboa, 1749-016 Lisbon, Portugal; (V.M.T.); (C.C.)
- Correspondence: ; Tel.: +351-217500971
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Kurizky PS, Gomes CM, Cesetti MV, Martins GA, Regattieri NAT, Marianelli FF, Sevilha Santos L, Medeiros Silva V, de Paula NA, Frade MAC, da Silva EF, da Mota LMH. Cross-sectional screening study for Leishmania DNA and antibodies in biologic-treated patients with psoriasis living in an area endemic for leishmaniasis. Br J Dermatol 2019; 181:1337-1339. [PMID: 31260088 DOI: 10.1111/bjd.18262] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- P S Kurizky
- Dermatology Department, Hospital Universitário de Brasília, Brasília, Brazil.,Diagnostic Dermatology Group, Núcleo de Medicina Tropical, Pós-graduação em Ciências Médicas, Laboratório de Dermatomicologia, Faculdade de Medicina, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
| | - C M Gomes
- Diagnostic Dermatology Group, Núcleo de Medicina Tropical, Pós-graduação em Ciências Médicas, Laboratório de Dermatomicologia, Faculdade de Medicina, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
| | - M V Cesetti
- Diagnostic Dermatology Group, Núcleo de Medicina Tropical, Pós-graduação em Ciências Médicas, Laboratório de Dermatomicologia, Faculdade de Medicina, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
| | - G A Martins
- Dermatology Department, Hospital Universitário de Brasília, Brasília, Brazil
| | - N A T Regattieri
- Imaging and Diagnostics Department, Hospital Universitário de Brasília, Brasília, Brazil
| | - F F Marianelli
- Dermatology Department, Hospital Universitário de Brasília, Brasília, Brazil
| | - L Sevilha Santos
- Diagnostic Dermatology Group, Núcleo de Medicina Tropical, Pós-graduação em Ciências Médicas, Laboratório de Dermatomicologia, Faculdade de Medicina, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
| | - V Medeiros Silva
- Postgraduate in Health Sciences, Laboratório de Dermatomicologia, Faculdade de Medicina, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
| | - N A de Paula
- Dermatology Department, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
| | - M A C Frade
- Dermatology Department, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
| | - E F da Silva
- Statistics Department, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
| | - L M H da Mota
- Diagnostic Dermatology Group, Núcleo de Medicina Tropical, Pós-graduação em Ciências Médicas, Laboratório de Dermatomicologia, Faculdade de Medicina, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil.,Rheumatology Department, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
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Hagmeyer S, Romão MA, Cristóvão JS, Vilella A, Zoli M, Gomes CM, Grabrucker AM. Distribution and Relative Abundance of S100 Proteins in the Brain of the APP23 Alzheimer's Disease Model Mice. Front Neurosci 2019; 13:640. [PMID: 31281238 PMCID: PMC6596341 DOI: 10.3389/fnins.2019.00640] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 06/04/2019] [Indexed: 12/12/2022] Open
Abstract
Increasing evidence links proteins of the S100 family to the pathogenesis of Alzheimer's disease (AD). S100 proteins are EF-hand calcium-binding proteins with intra- and extracellular functions related to regulation of proliferation, differentiation, apoptosis, and trace metal homeostasis, and are important modulators of inflammatory responses. For example, S100A6, S100A8, and S100B expression levels were found increased in inflammatory diseases, but also neurodegenerative disorders, and S100A8/A9 complexes may provide a mechanistic link between amyloid-beta (Aβ) plaque formation and neuroinflammation. On the other hand, S100B, a proinflammatory protein that is chronically up-regulated in AD and whose elevation precedes plaque formation, was recently shown to suppress Aβ aggregation. Here, we report expression of S100A6 and S100B in astrocytes and less so in neurons, and low level of expression of S100A8 in both neurons and glial cells in vitro. In vivo, S100A8 expression is almost absent in the brain of aged wildtype mice, while S100A6 and S100B are expressed in all brain regions and most prominently in the cortex and cerebellum. S100B seems to be enriched in Purkinje cells of the cerebellum. In contrast, in the brain of APP23 mice, a mouse model for Alzheimer's disease, S100B, S100A6, and S100A8 show co-localization with Aβ plaques, compatible with astrocyte activation, and the expression level of S100A8 is increased in neural cells. While S100A6 and S100B are enriched in the periphery of plaques where less fibrillar Aβ is found, S100A8 is more intense within the center of the inclusion. In vitro assays show that, similarly to S100B, S100A6, and S100A8 also delay Aβ aggregation suggesting a regulatory action over protein aggregation. We posit that elevated expression levels and overlapping spatial distribution of brain S100 proteins and plaques translates functional relationships between these inflammatory mediators and AD pathophysiology processes that uncover important molecular mechanisms linking the aggregation and neuroinflammation cascades.
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Affiliation(s)
- Simone Hagmeyer
- Cellular Neurobiology and Neuro-Nanotechnology Lab, Department of Biological Sciences, University of Limerick, Limerick, Ireland
- WG Molecular Analysis of Synaptopathies, Department of Neurology, Neurocenter of Ulm University, Ulm, Germany
| | - Mariana A. Romão
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Departamento de Química e Bioquímica, Universidade de Lisboa, Lisbon, Portugal
| | - Joana S. Cristóvão
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Departamento de Química e Bioquímica, Universidade de Lisboa, Lisbon, Portugal
| | - Antonietta Vilella
- Department of Biomedical, Metabolic and Neural Sciences, Center for Neuroscience and Neurotechnology, University of Modena and Reggio Emilia, Modena, Italy
| | - Michele Zoli
- Department of Biomedical, Metabolic and Neural Sciences, Center for Neuroscience and Neurotechnology, University of Modena and Reggio Emilia, Modena, Italy
| | - Cláudio M. Gomes
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Departamento de Química e Bioquímica, Universidade de Lisboa, Lisbon, Portugal
| | - Andreas M. Grabrucker
- Cellular Neurobiology and Neuro-Nanotechnology Lab, Department of Biological Sciences, University of Limerick, Limerick, Ireland
- Bernal Institute, University of Limerick, Limerick, Ireland
- Health Research Institute (HRI), University of Limerick, Limerick, Ireland
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Gurung P, Gomes CM, Vernal S, Leeflang MMG. Diagnostic accuracy of tests for leprosy: a systematic review and meta-analysis. Clin Microbiol Infect 2019; 25:1315-1327. [PMID: 31158516 DOI: 10.1016/j.cmi.2019.05.020] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 05/19/2019] [Accepted: 05/23/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVES Owing to difficulties in the clinical diagnosis of leprosy, several complementary tests have been developed and used. The aim was to systematically summarize the accuracy of diagnostic tests for leprosy. METHODS We searched for relevant articles in Embase, Medline, and Global Health databases, until June 2017. Studies evaluating the accuracy of any diagnostic techniques for differentiating between people with and without leprosy were included. Studies solely focusing on differentiating between the separate forms of leprosy were excluded. Our protocol was registered on PROSPERO (CRD42017071803). We assessed study quality using the QUADAS-2 checklist. A bivariate random effects regression model was used for the meta-analyses. RESULTS We included 78 studies, most of those evaluating the detection of IgM antibodies against phenolic glycolipid I using ELISA. Sensitivity of the 39 studies evaluating ELISA was 63.8% (95% CI 55.0-71.8); specificity 91.0% (95% CI 86.9-93.9). The lateral flow test (nine studies) and the agglutination test (five studies) had a slightly higher sensitivity and a slightly lower specificity. Sensitivity of qPCR was (five studies) 78.5% (95% CI 61.9-89.2) and specificity 89.3% (95% CI 61.4-97.8). Sensitivity of conventional PCR was (17 studies) 75.3% (95% CI 67.9-81.5) and specificity 94.5% (95% CI 91.4-96.5). CONCLUSIONS Although the test accuracy looks reasonable, the studies suffered from heterogeneity and low methodological quality.
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Affiliation(s)
- P Gurung
- Amsterdam UMC, University of Amsterdam, Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam Public Health, Amsterdam, The Netherlands
| | - C M Gomes
- Diagnostic Dermatology Group, Núcleo de Medicina Tropical, Pós-graduação em Ciências Médicas, Laboratório de Dermatomicologia, Faculdade de Medicina, Universidade de Brasília - UnB, Brasília, Brazil.
| | - S Vernal
- Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil; Divisão de Dermatologia, Departamento de Clínica Médica, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto-SP, Brazil
| | - M M G Leeflang
- Amsterdam UMC, University of Amsterdam, Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam Public Health, Amsterdam, The Netherlands
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Abstract
S100 proteins are calcium-binding proteins that regulate several processes associated with Alzheimer's disease (AD) but whose contribution and direct involvement in disease pathophysiology remains to be fully established. Due to neuroinflammation in AD patients, the levels of several S100 proteins are increased in the brain and some S100s play roles related to the processing of the amyloid precursor protein, regulation of amyloid beta peptide (Aβ) levels and Tau phosphorylation. S100 proteins are found associated with protein inclusions, either within plaques or as isolated S100-positive puncta, which suggests an active role in the formation of amyloid aggregates. Indeed, interactions between S100 proteins and aggregating Aβ indicate regulatory roles over the aggregation process, which may either delay or aggravate aggregation, depending on disease stage and relative S100 and Aβ levels. Additionally, S100s are also known to influence AD-related signaling pathways and levels of other cytokines. Recent evidence also suggests that metal-ligation by S100 proteins influences trace metal homeostasis in the brain, particularly of zinc, which is also a major deregulated process in AD. Altogether, this evidence strongly suggests a role of S100 proteins as key players in several AD-linked physiopathological processes, which we discuss in this review.
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Affiliation(s)
- Joana S. Cristóvão
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- Departamento de Química e Bioquímica, Universidade de Lisboa, Lisbon, Portugal
| | - Cláudio M. Gomes
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- Departamento de Química e Bioquímica, Universidade de Lisboa, Lisbon, Portugal
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Abstract
Proteins exhibit a remarkable structural plasticity and may undergo conformational changes resulting in protein misfolding both in a biological context and upon perturbing physiopathological conditions. Such nonfunctional protein conformers, including misfolded states and aggregates, are often associated to protein folding diseases. Understanding the biology of protein folding diseases thus requires tools that allow the structural characterization of nonnative conformations of proteins and their interconversions. Here we present detailed procedures to monitor protein conformational changes and aggregation based on spectroscopic and biophysical methods that include circular dichroism, ATR-Fourier-transformed infrared spectroscopy, fluorescence spectroscopy and dynamic light scattering. To illustrate the application of these methods we report to our previous studies on misfolding, aggregation and amyloid fibril formation by superoxide dismutase 1 (SOD1), a protein whose toxic deposition is implicated in the neurodegenerative disease amyotrophic lateral sclerosis (ALS).
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Affiliation(s)
- Joana S Cristóvão
- BioISI - Biosystems and Integrative Sciences Institute, Faculty of Sciences University of Lisbon, Lisbon, Portugal.,Department of Chemistry and Biochemistry, Faculty of Sciences University of Lisbon, Lisbon, Portugal
| | - Bárbara J Henriques
- BioISI - Biosystems and Integrative Sciences Institute, Faculty of Sciences University of Lisbon, Lisbon, Portugal.,Department of Chemistry and Biochemistry, Faculty of Sciences University of Lisbon, Lisbon, Portugal
| | - Cláudio M Gomes
- BioISI - Biosystems and Integrative Sciences Institute, Faculty of Sciences University of Lisbon, Lisbon, Portugal. .,Department of Chemistry and Biochemistry, Faculty of Sciences University of Lisbon, Lisbon, Portugal.
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31
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Reis FP, Bárria C, Gomez‐Puertas P, Gomes CM, Arraiano CM. Identification of temperature‐sensitive mutations and characterization of thermolabile
RN
ase
II
variants. FEBS Lett 2018; 593:352-360. [DOI: 10.1002/1873-3468.13313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 11/12/2018] [Indexed: 01/06/2023]
Affiliation(s)
- Filipa P. Reis
- Instituto de Tecnologia Química e Biológica António Xavier Universidade Nova de Lisboa Oeiras Portugal
| | - Cátia Bárria
- Instituto de Tecnologia Química e Biológica António Xavier Universidade Nova de Lisboa Oeiras Portugal
| | - Paulino Gomez‐Puertas
- Centro de Biologia Molecular ‘Severo Ochoa’ (CSIC‐UAM) Campus Universidad Autonoma de Madrid Spain
| | - Cláudio M. Gomes
- Biosystems and Integrative Sciences Institute Faculdade de Ciências Universidade de Lisboa Portugal
- Departamento de Química e Bioquímica Universidade de Lisboa Portugal
| | - Cecília M. Arraiano
- Instituto de Tecnologia Química e Biológica António Xavier Universidade Nova de Lisboa Oeiras Portugal
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Cristóvão JS, Morris VK, Cardoso I, Leal SS, Martínez J, Botelho HM, Göbl C, David R, Kierdorf K, Alemi M, Madl T, Fritz G, Reif B, Gomes CM. The neuronal S100B protein is a calcium-tuned suppressor of amyloid-β aggregation. Sci Adv 2018; 4:eaaq1702. [PMID: 29963623 PMCID: PMC6025902 DOI: 10.1126/sciadv.aaq1702] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 05/22/2018] [Indexed: 05/23/2023]
Abstract
Amyloid-β (Aβ) aggregation and neuroinflammation are consistent features in Alzheimer's disease (AD) and strong candidates for the initiation of neurodegeneration. S100B is one of the most abundant proinflammatory proteins that is chronically up-regulated in AD and is found associated with senile plaques. This recognized biomarker for brain distress may, thus, play roles in amyloid aggregation which remain to be determined. We report a novel role for the neuronal S100B protein as suppressor of Aβ42 aggregation and toxicity. We determined the structural details of the interaction between monomeric Aβ42 and S100B, which is favored by calcium binding to S100B, possibly involving conformational switching of disordered Aβ42 into an α-helical conformer, which locks aggregation. From nuclear magnetic resonance experiments, we show that this dynamic interaction occurs at a promiscuous peptide-binding region within the interfacial cleft of the S100B homodimer. This physical interaction is coupled to a functional role in the inhibition of Aβ42 aggregation and toxicity and is tuned by calcium binding to S100B. S100B delays the onset of Aβ42 aggregation by interacting with Aβ42 monomers inhibiting primary nucleation, and the calcium-bound state substantially affects secondary nucleation by inhibiting fibril surface-catalyzed reactions through S100B binding to growing Aβ42 oligomers and fibrils. S100B protects cells from Aβ42-mediated toxicity, rescuing cell viability and decreasing apoptosis induced by Aβ42 in cell cultures. Together, our findings suggest that molecular targeting of S100B could be translated into development of novel approaches to ameliorate AD neurodegeneration.
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Affiliation(s)
- Joana S. Cristóvão
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
- Departamento de Química e Bioquímica, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Vanessa K. Morris
- Center for Integrated Protein Science Munich, Department of Chemistry, Technische Universität München, Lichtenbergstrasse 4, 85748 Garching, Germany
- Helmholtz Zentrum München, Deutsches Forschungszentrum für Gesundheit und Umwelt, Ingolstädter Landstrasse 1, 85764 Neuherberg, Germany
| | - Isabel Cardoso
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Sónia S. Leal
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
- Departamento de Química e Bioquímica, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Javier Martínez
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
- Departamento de Química e Bioquímica, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Hugo M. Botelho
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Christoph Göbl
- Center for Integrated Protein Science Munich, Department of Chemistry, Technische Universität München, Lichtenbergstrasse 4, 85748 Garching, Germany
- Helmholtz Zentrum München, Deutsches Forschungszentrum für Gesundheit und Umwelt, Ingolstädter Landstrasse 1, 85764 Neuherberg, Germany
| | - Rodrigo David
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
- Departamento de Química e Bioquímica, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Katrin Kierdorf
- Department of Neuropathology, University of Freiburg, Freiburg, Germany
| | - Mobina Alemi
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - Tobias Madl
- Center for Integrated Protein Science Munich, Department of Chemistry, Technische Universität München, Lichtenbergstrasse 4, 85748 Garching, Germany
- Helmholtz Zentrum München, Deutsches Forschungszentrum für Gesundheit und Umwelt, Ingolstädter Landstrasse 1, 85764 Neuherberg, Germany
- Institute of Molecular Biology and Biochemistry, Center of Molecular Medicine, Medical University of Graz, 8010 Graz, Austria
| | - Günter Fritz
- Department of Neuropathology, University of Freiburg, Freiburg, Germany
| | - Bernd Reif
- Center for Integrated Protein Science Munich, Department of Chemistry, Technische Universität München, Lichtenbergstrasse 4, 85748 Garching, Germany
- Helmholtz Zentrum München, Deutsches Forschungszentrum für Gesundheit und Umwelt, Ingolstädter Landstrasse 1, 85764 Neuherberg, Germany
| | - Cláudio M. Gomes
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
- Departamento de Química e Bioquímica, Universidade de Lisboa, 1749-016 Lisboa, Portugal
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Sevilha-Santos L, Dos Santos Júnior ACM, Medeiros-Silva V, Bergmann JO, da Silva EF, Segato LF, Arabi AYM, de Paula NA, Sampaio RNR, Lima BD, Gomes CM. Accuracy of qPCR for quantifying Leishmania kDNA in different skin layers of patients with American tegumentary leishmaniasis. Clin Microbiol Infect 2018; 25:242-247. [PMID: 29730222 DOI: 10.1016/j.cmi.2018.04.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 04/19/2018] [Accepted: 04/24/2018] [Indexed: 11/18/2022]
Abstract
OBJECTIVES Superficial swab sampling of American tegumentary leishmaniasis (ATL) lesions shows higher amounts of Leishmania than those from biopsy. Subcutaneous involvement is also important in ATL, but parasite quantification according to lesion depth has not been evaluated. We aim to present the best depth at which sampling should be performed for molecular exams of ATL. METHODS Patients with a clinical presentation compatible with ATL were allocated to ATL and control groups. Qualitative and quantitative qPCR assays were performed using SYBR Green and primers amplifying the kDNA minicircle of Leishmania spp. in different skin layers, including the epidermis, the superior dermis, the inferior dermis, and the hypodermis. RESULTS Fifty-nine patients were included in this study, including 40 who had been diagnosed with ATL and 19 controls. The number of parasites was greater in samples of the epidermis and superior dermis (159.1 × 106, range 4.0-781.7, and 75.4 × 106, range 8.0-244.5, mean Leishmania parasite equivalents per μg of tissue DNA, respectively) than those in samples of the inferior dermis and hypodermis (54.6, range 8.0-256.6, and 16.8 × 106, range 8.0-24.1, mean Leishmania parasite equivalents per μg of tissue DNA, respectively). The best diagnostic accuracy was achieved in the superior dermis (77.9%) and was significantly greater than that in the hypodermis (63.3%; p 0.039). CONCLUSIONS We conclude that superficial sampling can retrieve a greater quantity of parasites. Future studies of the role of transepidermal elimination as a mechanism of host defence in ATL must be performed as there is a considerable quantity of Leishmania kDNA in the epidermis.
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Affiliation(s)
- L Sevilha-Santos
- Postgraduate Program in Medical Sciences, Faculty of Medicine, University of Brasília (UnB), Brasília, Brazil
| | - A C M Dos Santos Júnior
- Postgraduate Program in Molecular Pathology, Faculty of Medicine, University of Brasília (UnB), Brasília, Brazil
| | - V Medeiros-Silva
- Postgraduate Program in Health Sciences, Faculty of Health Sciences, University of Brasília (UnB), Brasília, Brazil
| | - J O Bergmann
- Postgraduate Program in Medical Sciences, Faculty of Medicine, University of Brasília (UnB), Brasília, Brazil
| | - E F da Silva
- Department of Statistics, University of Brasília (UnB), Brasília, Brazil
| | - L F Segato
- Dermatology Division, University Hospital of Brasília (HUB), University of Brasília (UnB), Brasília, Brazil
| | - A Y M Arabi
- Faculty of Medicine, University of Brasília, Brasília, Brazil
| | - N A de Paula
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Dermatology Division, Department of Medical Clinics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - R N R Sampaio
- Postgraduate Program in Medical Sciences, Faculty of Medicine, University of Brasília (UnB), Brasília, Brazil; Postgraduate Program in Health Sciences, Faculty of Health Sciences, University of Brasília (UnB), Brasília, Brazil; Dermatomycology Laboratory, Faculty of Medicine, University of Brasília, Brasília, Brazil
| | - B D Lima
- Gene Biology Laboratory, Postgraduate Program in Microbial Biology, Cell Biology Department, Biological Sciences Institute, University of Brasília (UnB), Brasília, DF, Brazil
| | - C M Gomes
- Postgraduate Program in Medical Sciences, Faculty of Medicine, University of Brasília (UnB), Brasília, Brazil; Dermatology Division, University Hospital of Brasília (HUB), University of Brasília (UnB), Brasília, Brazil; Dermatomycology Laboratory, Faculty of Medicine, University of Brasília, Brasília, Brazil; Tropical Medicine Nucleus, University of Brasília, Brasília, Brazil.
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34
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Hagmeyer S, Cristóvão JS, Mulvihill JJE, Boeckers TM, Gomes CM, Grabrucker AM. Zinc Binding to S100B Affords Regulation of Trace Metal Homeostasis and Excitotoxicity in the Brain. Front Mol Neurosci 2018; 10:456. [PMID: 29386995 PMCID: PMC5776125 DOI: 10.3389/fnmol.2017.00456] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 12/26/2017] [Indexed: 12/16/2022] Open
Abstract
Neuronal metal ions such as zinc are essential for brain function. In particular synaptic processes are tightly related to metal and protein homeostasis, for example through extracellular metal-binding proteins. One such protein is neuronal S100B, a calcium and zinc binding damage-associated molecular pattern (DAMP), whose chronic upregulation is associated with aging, Alzheimer’s disease (AD), motor neuron disease and traumatic brain injury (TBI). Despite gained insights on the structure of S100B, it remains unclear how its calcium and zinc binding properties regulate its function on cellular level. Here we report a novel role of S100B in trace metal homeostasis, in particular the regulation of zinc levels in the brain. Our results show that S100B at increased extracellular levels is not toxic, persists at high levels, and is taken up into neurons, as shown by cell culture and biochemical analysis. Combining protein bioimaging and zinc quantitation, along with a zinc-binding impaired S100B variant, we conclude that S100B effectively scavenges zinc ions through specific binding, resulting in a redistribution of the intracellular zinc pool. Our results indicate that scavenging of zinc by increased levels of S100B affects calcium levels in vitro. Thereby S100B is able to mediate the cross talk between calcium and zinc homeostasis. Further, we investigated a possible new neuro-protective role of S100B in excitotoxicity via its effects on calcium and zinc homeostasis. Exposure of cells to zinc-S100B but not the zinc-binding impaired S100B results in an inhibition of excitotoxicity. We conclude that in addition to its known functions, S100B acts as sensor and regulator of elevated zinc levels in the brain and this metal-buffering activity is tied to a neuroprotective role.
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Affiliation(s)
- Simone Hagmeyer
- WG Molecular Analysis of Synaptopathies, Department of Neurology, Neurocenter of Ulm University, Ulm, Germany.,Cellular Neurobiology and Neuro-Nanotechnology Lab, Department of Biological Sciences, University of Limerick, Limerick, Ireland.,Bernal Institute, University of Limerick, Limerick, Ireland
| | - Joana S Cristóvão
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, and Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - John J E Mulvihill
- Bernal Institute, University of Limerick, Limerick, Ireland.,Health Research Institute (HRI), University of Limerick, Limerick, Ireland
| | - Tobias M Boeckers
- Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany
| | - Cláudio M Gomes
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, and Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Andreas M Grabrucker
- Cellular Neurobiology and Neuro-Nanotechnology Lab, Department of Biological Sciences, University of Limerick, Limerick, Ireland.,Bernal Institute, University of Limerick, Limerick, Ireland.,Health Research Institute (HRI), University of Limerick, Limerick, Ireland
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35
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Gouveia Z, Carlos AR, Yuan X, Aires-da-Silva F, Stocker R, Maghzal GJ, Leal SS, Gomes CM, Todorovic S, Iranzo O, Ramos S, Santos AC, Hamza I, Gonçalves J, Soares MP. Characterization of plasma labile heme in hemolytic conditions. FEBS J 2017; 284:3278-3301. [PMID: 28783254 PMCID: PMC5978748 DOI: 10.1111/febs.14192] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 06/13/2017] [Accepted: 08/03/2017] [Indexed: 01/29/2023]
Abstract
Extracellular hemoglobin, a byproduct of hemolysis, can release its prosthetic heme groups upon oxidation. This produces metabolically active heme that is exchangeable between acceptor proteins, macromolecules and low molecular weight ligands, termed here labile heme. As it accumulates in plasma labile heme acts in a pro‐oxidant manner and regulates cellular metabolism while exerting pro‐inflammatory and cytotoxic effects that foster the pathogenesis of hemolytic diseases. Here, we developed and characterized a panel of heme‐specific single domain antibodies (sdAbs) that together with a cellular‐based heme reporter assay, allow for quantification and characterization of labile heme in plasma during hemolytic conditions. Using these approaches, we demonstrate that when generated during hemolytic conditions labile heme is bound to plasma molecules with an affinity higher than 10−7m and that 2–8% (~ 2–5 μm) of the total amount of heme detected in plasma can be internalized by bystander cells, termed here bioavailable heme. Acute, but not chronic, hemolysis is associated with transient reduction of plasma heme‐binding capacity, that is, the ability of plasma molecules to bind labile heme with an affinity higher than 10−7m. The heme‐specific sdAbs neutralize the pro‐oxidant activity of soluble heme in vitro, suggesting that these maybe used to counter the pathologic effects of labile heme during hemolytic conditions. Finally, we show that heme‐specific sdAbs can be used to visualize cellular heme. In conclusion, we describe a panel of heme‐specific sdAbs that when used with other approaches provide novel insights to the pathophysiology of heme.
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Affiliation(s)
| | - Ana R Carlos
- Instituto Gulbenkian da Ciência, Oeiras, Portugal
| | - Xiaojing Yuan
- Department of Animal and Avian Sciences and Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD, USA
| | - Frederico Aires-da-Silva
- Technophage S.A., Lisboa, Portugal.,CIISA-Faculdade de Medicina Veterinária, Universidade de Lisboa, Portugal
| | - Roland Stocker
- Vascular Biology Division, Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia.,School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Ghassan J Maghzal
- Vascular Biology Division, Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia.,School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Sónia S Leal
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
| | - Cláudio M Gomes
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
| | - Smilja Todorovic
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
| | - Olga Iranzo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
| | - Susana Ramos
- Instituto Gulbenkian da Ciência, Oeiras, Portugal
| | - Ana C Santos
- IMM, Faculdade Medicina, Universidade de Lisboa, Portugal.,CPM-URIA, Faculdade Farmácia, Universidade de Lisboa, Portugal
| | - Iqbal Hamza
- Department of Animal and Avian Sciences and Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD, USA
| | - João Gonçalves
- IMM, Faculdade Medicina, Universidade de Lisboa, Portugal.,CPM-URIA, Faculdade Farmácia, Universidade de Lisboa, Portugal
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36
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Matos AM, Cristóvão JS, Yashunsky DV, Nifantiev NE, Viana AS, Gomes CM, Rauter AP. Synthesis and effects of flavonoid structure variation on amyloid-β aggregation. PURE APPL CHEM 2017. [DOI: 10.1515/pac-2017-0201] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
AbstractDietary flavonoids and synthetic derivatives have a well-known potential for biomedical applications. In this perspective, we report herein new methodologies to access chrysin and 5,7-dihydroxychromone, and these structures were combined with those of naturally occurring quercetin, luteolin, (+)-dihydroquercetin and apigenin to assemble a set of polyphenols with structure variations for in vitro testing over the aggregation of Alzheimer’s disease (AD) amyloid peptide Aβ1−42. Using thioflavin-T (ThT) monitored kinetics and subsequent mechanistic analysis by curve fitting, we show that catechol-type flavonoids reduce Aβ1−42 fibril content by 30% at molar ratios over 10. Without affecting secondary nucleation, these compounds accelerate primary nucleation events responsible for early primary oligomer formation, putatively redirecting the latter into off-pathway aggregates. Atomic force microscopy (AFM) imaging of reaction end-points allowed a comprehensive topographical analysis of amyloid aggregate populations formed in the presence of each compound. Formation of Aβ1−42 small oligomers, regarded as the most toxic amyloid structures, seems to be limited by flavonoids with a C2 phenyl group, while flavonol 3-OH is not a beneficial structural feature. Overall, the diversity of structural variations within flavonoids opens avenues for their development as chemical tools in the treatment of AD by tackling the formation and distribution of neurotoxic oligomers species.
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Affiliation(s)
- Ana M. Matos
- Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa and Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Ed. C8, Campo Grande, 1749-016 Lisboa, Portugal
- CEDOC Chronic Diseases, Nova Medical School, Rua Câmara Pestana n° 6, 6-A, CEDOC II, 1150-082, Lisboa, Portugal
| | - Joana S. Cristóvão
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa; Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Dmitry V. Yashunsky
- Laboratory of Glycoconjugate Chemistry, N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky, Prospect 47, 119991 Moscow, Russian Federation
| | - Nikolay E. Nifantiev
- Laboratory of Glycoconjugate Chemistry, N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky, Prospect 47, 119991 Moscow, Russian Federation
| | - Ana S. Viana
- Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa and Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Ed. C8, Campo Grande, 1749-016 Lisboa, Portugal
| | - Cláudio M. Gomes
- Biosystems and Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, and Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Amélia P. Rauter
- Centro de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa and Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Ed. C8, Campo Grande, 1749-016 Lisboa, Portugal
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37
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Henriques BJ, Lucas TG, Gomes CM. Therapeutic Approaches Using Riboflavin in Mitochondrial Energy Metabolism Disorders. Curr Drug Targets 2017; 17:1527-34. [PMID: 27527619 DOI: 10.2174/1389450117666160813180812] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 03/28/2016] [Accepted: 04/18/2016] [Indexed: 11/22/2022]
Abstract
Riboflavin, or vitamin B2, plays an important role in the cell as biological precursor of FAD and FMN, two important flavin cofactors which are essential for the structure and function of flavoproteins. Riboflavin has been used in therapeutic approaches of various inborn errors of metabolism, notably in metabolic disorders resulting either from defects in proteins involved in riboflavin metabolism and transport or from defects in flavoenzymes. The scope of this review is to provide an updated perspective of clinical cases in which riboflavin was used as a potential therapeutic agent in disorders affecting mitochondrial energy metabolism. In particular, we discuss available mechanistic insights on the role of riboflavin as a pharmacological chaperone for the recovery of misfolded metabolic flavoenzymes.
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Affiliation(s)
| | | | - Cláudio M Gomes
- Faculdade de Ciências Universidade de Lisboa, Biosystems and Integrative Sciences Institute and Department of Chemistry and Biochemistry, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal.
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38
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Sammour ZM, de Bessa J, Hisano M, Bruschini H, Kim CA, Srougi M, Gomes CM. Lower urinary tract symptoms in children and adolescents with Williams-Beuren syndrome. J Pediatr Urol 2017; 13:203.e1-203.e6. [PMID: 27876405 DOI: 10.1016/j.jpurol.2016.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Accepted: 10/04/2016] [Indexed: 11/15/2022]
Abstract
INTRODUCTION Williams-Beuren syndrome (WBS) is a genetic condition caused by a microscopic deletion in the chromosome band 7q11.23. Individuals with WBS may present with congenital cardiovascular defects, neurodevelopmental disturbances and structural abnormalities of the urinary tract. Lower urinary tract symptoms (LUTS) seem to be frequent in this population, but studies on this topic are scarce and based on small case series. OBJECTIVE To systematically evaluate the prevalence of lower urinary tract symptoms (LUTS) and the acquisition of bladder control in a large population with WBS. STUDY DESIGN A cross-sectional study evaluating 87 consecutive patients with WBS; there were 41 girls and 46 boys. Genetic studies confirmed WBS in all patients. Subjects were clinically evaluated with: a history of LUTS obtained from the parents and child, a structured questionnaire of LUTS, a 3-day urinary frequency-volume chart, a quality of life question regarding LUTS, and physical examination. A history regarding the acquisition of bladder control was directly evaluated from the parents. RESULTS Mean age of patients was 9.0 ± 4.2 years, ranging from 3 to 19 years. Based on the symptoms questionnaire and the frequency-volume chart, 70 patients (80.5%) were symptomatic. The most common symptom was urgency, affecting 61 (70.1%) patients, followed by increased urinary frequency in 60 (68.9%) patients, and urge-incontinence in 53 (60.9%), as shown in Summary Fig. More than half of the children reported nocturnal enuresis, including 61% of the girls and 52% of the boys. Twenty-three patients (25.6%) had a history of urinary tract infections. The mean age for acquisition of dryness during the day was 4.4 ± 1.9 years. Parents of 61 patients (70.1%) acknowledged that LUTS had a significant impact on the quality of life of their children. DISCUSSION A high prevalence of LUTS was confirmed with a significant negative impact on quality of life in a large population of children and adolescents with WBS. It was shown for the first time that the achievement of daytime bladder control is delayed in children with WBS. Although LUTS are not recognized as one of the leading features of the syndrome, it is believed that it should be considered as a significant characteristic of the clinical diagnosis of WBS. CONCLUSIONS LUTS are highly prevalent in children and adolescents with WBS and have a significant negative impact on patient's quality of life.
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Affiliation(s)
- Z M Sammour
- Division of Urology, Hospital das Clínicas, University of São Paulo, São Paulo, Brazil
| | - J de Bessa
- Division of Urology, Hospital das Clínicas, University of São Paulo, São Paulo, Brazil
| | - M Hisano
- Division of Urology, Hospital das Clínicas, University of São Paulo, São Paulo, Brazil.
| | - H Bruschini
- Division of Urology, Hospital das Clínicas, University of São Paulo, São Paulo, Brazil
| | - C A Kim
- Genetics Unit of the Pediatrics Department, Children's Institute, University of São Paulo, São Paulo, Brazil
| | - M Srougi
- Division of Urology, Hospital das Clínicas, University of São Paulo, São Paulo, Brazil
| | - C M Gomes
- Division of Urology, Hospital das Clínicas, University of São Paulo, São Paulo, Brazil
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39
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Adam P, Křížková S, Heger Z, Babula P, Pekařík V, Vaculovičoá M, Gomes CM, Kizek R, Adam V. Metallothioneins in Prion- and Amyloid-Related Diseases. J Alzheimers Dis 2016; 51:637-56. [DOI: 10.3233/jad-150984] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Pavlína Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Soňa Křížková
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Zbyněk Heger
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Petr Babula
- Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice, Brno, Czech Republic
| | - Vladimír Pekařík
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Markéta Vaculovičoá
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Cláudio M. Gomes
- Faculdade de Ciências Universidade de Lisboa, Biosystems and Integrative Sciences Institute and Department of Chemistry and Biochemistry, Universidade de Lisboa, Campo Grande, Lisboa, Portugal
| | - René Kizek
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
| | - Vojtěch Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Technicka, Brno, Czech Republic
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40
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Vieira M, Leal SS, Gomes CM, Saraiva MJ. Evidence for synergistic action of transthyretin and IGF-I over the IGF-I receptor. Biochim Biophys Acta Mol Basis Dis 2016; 1862:797-804. [PMID: 26804653 DOI: 10.1016/j.bbadis.2016.01.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Revised: 12/23/2015] [Accepted: 01/08/2016] [Indexed: 12/30/2022]
Abstract
Transthyretin (TTR) has a neuroprotective role in the central nervous system (CNS) in Alzheimer's disease (AD) and cerebral ischemia. Increased levels of TTR and activated insulin-like growth factor I receptor (IGF-IR) are associated with reduced neurodegeneration in an AD mouse model. In the present study, we found that TTR and IGF-I have a synergistic effect on activation of one of the IGF-IR signaling pathways. Hippocampus of TTR null mice present decreased levels of phosphorylated IGF-IR and Akt when compared with TTR wild type littermate animals. Cell studies reveal the synergistic effect of TTR and IGF-I in promoting IGF-IR signaling even under glutamate induced toxicity. TTR:IGF-IR complexes are identified and a bio-layer interferometry assay demonstrated an interaction between TTR and IGF-IR with a KD ranging from 99 to 744nM. In summary, our results point to a new TTR role through the IGF-I axis, mediated through TTR-IGF-IR interactions.
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Affiliation(s)
- Marta Vieira
- I3S - Instituto de Investigação e Inovação em Saúde, Unidade de Neurobiologia Molecular, IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Sónia S Leal
- Instituto Tecnologia Química e Biológica, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - Cláudio M Gomes
- Instituto Tecnologia Química e Biológica, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - Maria João Saraiva
- I3S - Instituto de Investigação e Inovação em Saúde, Unidade de Neurobiologia Molecular, IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal.
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41
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Reybier K, Ayala S, Alies B, Rodrigues JV, Bustos Rodriguez S, La Penna G, Collin F, Gomes CM, Hureau C, Faller P. Free Superoxide is an Intermediate in the Production of H2O2 by Copper(I)-Aβ Peptide and O2. Angew Chem Int Ed Engl 2015; 55:1085-9. [PMID: 26629876 DOI: 10.1002/anie.201508597] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Indexed: 11/06/2022]
Abstract
Oxidative stress is considered as an important factor and an early event in the etiology of Alzheimer's disease (AD). Cu bound to the peptide amyloid-β (Aβ) is found in AD brains, and Cu-Aβ could contribute to this oxidative stress, as it is able to produce in vitro H2O2 and HO˙ in the presence of oxygen and biological reducing agents such as ascorbate. The mechanism of Cu-Aβ-catalyzed H2O2 production is however not known, although it was proposed that H2O2 is directly formed from O2 via a 2-electron process. Here, we implement an electrochemical setup and use the specificity of superoxide dismutase-1 (SOD1) to show, for the first time, that H2O2 production by Cu-Aβ in the presence of ascorbate occurs mainly via a free O2˙(-) intermediate. This finding radically changes the view on the catalytic mechanism of H2O2 production by Cu-Aβ, and opens the possibility that Cu-Aβ-catalyzed O2˙(-) contributes to oxidative stress in AD, and hence may be of interest.
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Affiliation(s)
- Karine Reybier
- University of Toulouse, UPS; UMR 152 PHARMA-DEV, 118 route de Narbonne, 31062, Toulouse cedex 9, France. .,IRD, UMR 152, 31062, Toulouse cedex 9, France.
| | - Sara Ayala
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,University of Toulouse, UPS, INPT, 31077, Toulouse Cedex 4, France
| | - Bruno Alies
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,University of Toulouse, UPS, INPT, 31077, Toulouse Cedex 4, France
| | - João V Rodrigues
- Instituto Tecnologia Química e Biológica, Universidade Nova de Lisboa, Oeiras, Portugal.,Harvard University, Department of Chemistry and Chemical Biology, Cambridge, MA, USA
| | - Susana Bustos Rodriguez
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,University of Toulouse, UPS, INPT, 31077, Toulouse Cedex 4, France
| | - Giovanni La Penna
- CNR - National Research Council of Italy, ICCOM - Institute for Chemistry of Organo-Metallic Compounds, via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy
| | - Fabrice Collin
- University of Toulouse, UPS; UMR 152 PHARMA-DEV, 118 route de Narbonne, 31062, Toulouse cedex 9, France.,IRD, UMR 152, 31062, Toulouse cedex 9, France.,CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,University of Toulouse, UPS, INPT, 31077, Toulouse Cedex 4, France
| | - Cláudio M Gomes
- Instituto Tecnologia Química e Biológica, Universidade Nova de Lisboa, Oeiras, Portugal.,Faculdade de Ciências, Biosystems and Integrative Sciences Institute, Department of Chemistry and Biochemistry, Universidade de Lisboa, Campo Grande, Lisboa, Portugal
| | - Christelle Hureau
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,University of Toulouse, UPS, INPT, 31077, Toulouse Cedex 4, France
| | - Peter Faller
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France. .,University of Toulouse, UPS, INPT, 31077, Toulouse Cedex 4, France. .,Institute de Chimie (UMR 7177), 4 rue B. Pascal, 67081, Strasbourg, France.
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42
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Reybier K, Ayala S, Alies B, Rodrigues JV, Bustos Rodriguez S, La Penna G, Collin F, Gomes CM, Hureau C, Faller P. Free Superoxide is an Intermediate in the Production of H
2
O
2
by Copper(I)‐Aβ Peptide and O
2. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201508597] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Karine Reybier
- University of Toulouse, UPS; UMR 152 PHARMA-DEV 118 route de Narbonne 31062 Toulouse cedex 9 France
- IRD, UMR 152 31062 Toulouse cedex 9 France
| | - Sara Ayala
- CNRS, LCC (Laboratoire de Chimie de Coordination) 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- University of Toulouse, UPS, INPT 31077 Toulouse Cedex 4 France
| | - Bruno Alies
- CNRS, LCC (Laboratoire de Chimie de Coordination) 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- University of Toulouse, UPS, INPT 31077 Toulouse Cedex 4 France
| | - João V. Rodrigues
- Instituto Tecnologia Química e Biológica Universidade Nova de Lisboa Oeiras Portugal
- Harvard University Department of Chemistry and Chemical Biology Cambridge MA USA
| | - Susana Bustos Rodriguez
- CNRS, LCC (Laboratoire de Chimie de Coordination) 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- University of Toulouse, UPS, INPT 31077 Toulouse Cedex 4 France
| | - Giovanni La Penna
- CNR – National Research Council of Italy ICCOM – Institute for Chemistry of Organo-Metallic Compounds via Madonna del Piano 10 50019 Sesto Fiorentino Firenze Italy
| | - Fabrice Collin
- University of Toulouse, UPS; UMR 152 PHARMA-DEV 118 route de Narbonne 31062 Toulouse cedex 9 France
- IRD, UMR 152 31062 Toulouse cedex 9 France
- CNRS, LCC (Laboratoire de Chimie de Coordination) 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- University of Toulouse, UPS, INPT 31077 Toulouse Cedex 4 France
| | - Cláudio M. Gomes
- Instituto Tecnologia Química e Biológica Universidade Nova de Lisboa Oeiras Portugal
- Faculdade de Ciências, Biosystems and Integrative Sciences Institute Department of Chemistry and Biochemistry Universidade de Lisboa, Campo Grande Lisboa Portugal
| | - Christelle Hureau
- CNRS, LCC (Laboratoire de Chimie de Coordination) 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- University of Toulouse, UPS, INPT 31077 Toulouse Cedex 4 France
| | - Peter Faller
- CNRS, LCC (Laboratoire de Chimie de Coordination) 205 route de Narbonne, BP 44099 31077 Toulouse Cedex 4 France
- University of Toulouse, UPS, INPT 31077 Toulouse Cedex 4 France
- Institute de Chimie (UMR 7177) 4 rue B. Pascal 67081 Strasbourg France
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43
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Leal SS, Cristóvão JS, Biesemeier A, Cardoso I, Gomes CM. Aberrant zinc binding to immature conformers of metal-free copper-zinc superoxide dismutase triggers amorphous aggregation. Metallomics 2015; 7:333-46. [PMID: 25554447 DOI: 10.1039/c4mt00278d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Superoxide dismutase 1 (SOD1) is a Cu/Zn metalloenzyme that aggregates in amyotrophic lateral sclerosis (ALS), a fatal neurodegenerative disorder. Correct metal insertion during SOD1 biosynthesis is critical to prevent misfolding; however Zn(2+) can bind to the copper-site leading to an aberrantly metallated protein. These effects of Zn(2+) misligation on SOD1 aggregation remain to be explored, even though Zn(2+) levels are upregulated in ALS motor neurons. Here we use complementary biophysical methods to investigate Zn(2+) binding and its effects on the aggregation of three immature metal-free SOD1 conformers that represent biogenesis intermediates: dimeric, monomeric and reduced monomeric SOD1. Using isothermal titration calorimetry we determined that Zn(2+) binds to all conformers both at the zinc- as well as to the copper-site; however Zn(2+) binding mechanisms to the zinc-site have distinct characteristics across immature conformers. We show that this 'zinc overload' of immature SOD1 promotes intermolecular interactions, as evidenced by dynamic light scattering and ThT fluorescence kinetic studies. Analysis of aged zinc-induced aggregates by energy-dispersive X-ray and electron energy-loss spectroscopy shows that aggregates integrate some Zn(2+). In addition, electron diffraction analysis identifies nano-scaled crystalline materials and amyloid fibril-like reflections. Transmission electron microscopy reveals that Zn(2+) diverts the SOD1 aggregation pathway from fibrils to amorphous aggregate, and electrophoretic analysis evidences an increase in insoluble materials. Overall, we provide evidence that aberrant zinc coordination to immature conformers broadens the population of SOD1 misfolded species at early aggregation stages and provide evidence for a high structural polymorphism and heterogeneity of SOD1 aggregates.
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Affiliation(s)
- Sónia S Leal
- Instituto Tecnologia Química e Biológica, Universidade Nova de Lisboa, Oeiras, Portugal.
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44
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Leal SS, Gomes CM. Calcium dysregulation links ALS defective proteins and motor neuron selective vulnerability. Front Cell Neurosci 2015; 9:225. [PMID: 26136661 PMCID: PMC4468822 DOI: 10.3389/fncel.2015.00225] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 05/28/2015] [Indexed: 12/12/2022] Open
Abstract
More than 20 distinct gene loci have so far been implicated in amyotrophic lateral sclerosis (ALS), a fatal neurodegenerative disorder characterized by progressive neurodegeneration of motor neurons (MN) and death. Most of this distinct set of ALS-related proteins undergoes toxic deposition specifically in MN for reasons which remain unclear. Here we overview a recent body of evidence indicative that mutations in ALS-related proteins can disrupt fundamental Ca2+ signalling pathways in MN, and that Ca2+ itself impacts both directly or indirectly in many ALS critical proteins and cellular processes that result in MN neurodegeneration. We argue that the inherent vulnerability of MN to dysregulation of intracellular Ca2+ is deeply associated with discriminating pathogenicity and aberrant crosstalk of most of the critical proteins involved in ALS. Overall, Ca2+ deregulation in MN is at the cornerstone of different ALS processes and is likely one of the factors contributing to the selective susceptibility of these cells to this particular neurodegenerative disease.
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Affiliation(s)
- Sónia S Leal
- Faculdade de Ciências, Biosystems and Integrative Sciences Institute and Department of Chemistry and Biochemistry, Universidade de Lisboa Campo Grande, Lisboa, Portugal ; Instituto Tecnologia Química e Biológica, Universidade Nova de Lisboa Oeiras, Portugal
| | - Cláudio M Gomes
- Faculdade de Ciências, Biosystems and Integrative Sciences Institute and Department of Chemistry and Biochemistry, Universidade de Lisboa Campo Grande, Lisboa, Portugal ; Instituto Tecnologia Química e Biológica, Universidade Nova de Lisboa Oeiras, Portugal
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45
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Zocca A, Elsayed H, Bernardo E, Gomes CM, Lopez-Heredia MA, Knabe C, Colombo P, Günster J. 3D-printed silicate porous bioceramics using a non-sacrificial preceramic polymer binder. Biofabrication 2015; 7:025008. [DOI: 10.1088/1758-5090/7/2/025008] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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46
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Deive FJ, Ruivo D, Rodrigues JV, Gomes CM, Sanromán MÁ, Rebelo LPN, Esperança JMSS, Rodríguez A. On the hunt for truly biocompatible ionic liquids for lipase-catalyzed reactions. RSC Adv 2015. [DOI: 10.1039/c4ra15021j] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
One of the challenges in the field of biocatalysis is the search for efficient reaction media avoiding enzyme deactivation.
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Affiliation(s)
| | - Diana Ruivo
- Instituto de Tecnologia Química e Biológica
- Universidade Nova de Lisboa
- 2780-157 Oeiras
- Portugal
| | - João V. Rodrigues
- Instituto de Tecnologia Química e Biológica
- Universidade Nova de Lisboa
- 2780-157 Oeiras
- Portugal
| | - Cláudio M. Gomes
- Instituto de Tecnologia Química e Biológica
- Universidade Nova de Lisboa
- 2780-157 Oeiras
- Portugal
| | | | - Luís Paulo N. Rebelo
- Instituto de Tecnologia Química e Biológica
- Universidade Nova de Lisboa
- 2780-157 Oeiras
- Portugal
| | - José M. S. S. Esperança
- Instituto de Tecnologia Química e Biológica
- Universidade Nova de Lisboa
- 2780-157 Oeiras
- Portugal
| | - Ana Rodríguez
- Department of Chemical Engineering
- University of Vigo
- 36310 Vigo
- Spain
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47
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Estácio SG, Leal SS, Cristóvão JS, Faísca PFN, Gomes CM. Calcium binding to gatekeeper residues flanking aggregation-prone segments underlies non-fibrillar amyloid traits in superoxide dismutase 1 (SOD1). Biochim Biophys Acta 2014; 1854:118-26. [PMID: 25463043 DOI: 10.1016/j.bbapap.2014.11.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 11/14/2014] [Accepted: 11/18/2014] [Indexed: 12/26/2022]
Abstract
Calcium deregulation is a central feature among neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS). Calcium accumulates in the spinal and brain stem motor neurons of ALS patients triggering multiple pathophysiological processes which have been recently shown to include direct effects on the aggregation cascade of superoxide dismutase 1 (SOD1). SOD1 is a Cu/Zn enzyme whose demetallated form is implicated in ALS protein deposits, contributing to toxic gain of function phenotypes. Here we undertake a combined experimental and computational study aimed at establishing the molecular details underlying the regulatory effects of Ca(2+) over SOD1 aggregation potential. Isothermal titration calorimetry indicates entropy driven low affinity association of Ca(2+) ions to apo SOD1, at pH7.5 and 37°C. Molecular dynamics simulations denote a noticeable loss of native structure upon Ca(2+) association that is especially prominent at the zinc-binding and electrostatic loops, whose decoupling is known to expose the central SOD1 β-barrel triggering aggregation. Structural mapping of the preferential apo SOD1 Ca(2+) binding locations reveals that among the most frequent ligands for Ca(2+) are negatively-charged gatekeeper residues located in boundary positions with respect to segments highly prone to edge-to-edge aggregation. Calcium interactions thus diminish gatekeeping roles of these residues, by shielding repulsive interactions via stacking between aggregating β-sheets, partly blocking fibril formation and promoting amyloidogenic oligomers such as those found in ALS inclusions. Interestingly, many fALS mutations occur at these positions, disclosing how Ca(2+) interactions recreate effects similar to those of genetic defects, a finding with relevance to understand sporadic ALS pathomechanisms.
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Affiliation(s)
- Sílvia G Estácio
- Centro de Física da Matéria Condensada, Universidade de Lisboa, Lisboa, Portugal; Departamento de Física, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal.
| | - Sónia S Leal
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Joana S Cristóvão
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Patrícia F N Faísca
- Centro de Física da Matéria Condensada, Universidade de Lisboa, Lisboa, Portugal; Departamento de Física, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal.
| | - Cláudio M Gomes
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal.
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48
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Correia AR, Naik S, Fisher MT, Gomes CM. Probing the kinetic stabilities of Friedreich's ataxia clinical variants using a solid phase GroEL chaperonin capture platform. Biomolecules 2014; 4:956-79. [PMID: 25333765 PMCID: PMC4279165 DOI: 10.3390/biom4040956] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 08/29/2014] [Accepted: 09/19/2014] [Indexed: 11/17/2022] Open
Abstract
Numerous human diseases are caused by protein folding defects where the protein may become more susceptible to degradation or aggregation. Aberrant protein folding can affect the kinetic stability of the proteins even if these proteins appear to be soluble in vivo. Experimental discrimination between functional properly folded and misfolded nonfunctional conformers is not always straightforward at near physiological conditions. The differences in the kinetic behavior of two initially folded frataxin clinical variants were examined using a high affinity chaperonin kinetic trap approach at 25 °C. The kinetically stable wild type frataxin (FXN) shows no visible partitioning onto the chaperonin. In contrast, the clinical variants FXN-p.Asp122Tyr and FXN-p.Ile154Phe kinetically populate partial folded forms that tightly bind the GroEL chaperonin platform. The initially soluble FXN-p.Ile154Phe variant partitions onto GroEL more rapidly and is more kinetically liable. These differences in kinetic stability were confirmed using differential scanning fluorimetry. The kinetic and aggregation stability differences of these variants may lead to the distinct functional impairments described in Friedreich's ataxia, the neurodegenerative disease associated to frataxin functional deficiency. This chaperonin platform approach may be useful for identifying small molecule stabilizers since stabilizing ligands to frataxin variants should lead to a concomitant decrease in chaperonin binding.
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Affiliation(s)
- Ana R Correia
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, EAN, Oeiras 2784-505, Portugal.
| | - Subhashchandra Naik
- Department of Biochemistry and Molecular Biology, Hemenway Life Sciences Innovation Center (HLSIC), University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS 66160, USA.
| | - Mark T Fisher
- Department of Biochemistry and Molecular Biology, Hemenway Life Sciences Innovation Center (HLSIC), University of Kansas Medical Center, 3901 Rainbow Blvd., Kansas City, KS 66160, USA.
| | - Cláudio M Gomes
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, EAN, Oeiras 2784-505, Portugal.
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Farinha CM, King-Underwood J, Sousa M, Correia AR, Henriques BJ, Roxo-Rosa M, Da Paula AC, Williams J, Hirst S, Gomes CM, Amaral MD. Revertants, low temperature, and correctors reveal the mechanism of F508del-CFTR rescue by VX-809 and suggest multiple agents for full correction. ACTA ACUST UNITED AC 2014; 20:943-55. [PMID: 23890012 DOI: 10.1016/j.chembiol.2013.06.004] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Revised: 05/10/2013] [Accepted: 06/09/2013] [Indexed: 11/30/2022]
Abstract
Cystic fibrosis is mostly caused by the F508del mutation, which impairs CFTR protein from exiting the endoplasmic reticulum due to misfolding. VX-809 is a small molecule that rescues F508del-CFTR localization, which recently went into clinical trial but with unknown mechanism of action (MoA). Herein, we assessed if VX-809 is additive or synergistic with genetic revertants of F508del-CFTR, other correctors, and low temperature to determine its MoA. We explored and integrated those various agents in combined treatments, showing how they add to each other to identify their complementary MoA upon correction of F508del-CFTR. Our experimental and modeling data, while compatible with putative binding of VX-809 to NBD1:ICL4 interface, also indicate scope for further synergistic F508del-CFTR correction by other compounds at distinct conformational sites/cellular checkpoints, thus suggesting requirement of combined therapies to fully rescue F508del-CFTR.
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Affiliation(s)
- Carlos M Farinha
- Faculty of Sciences, Center for Biodiversity, Functional, and Integrative Genomics, University of Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
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50
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Gomes CM, Ávila LR, Pinto SA, Duarte FB, Pereira LIA, Abrahamsohn IA, Dorta ML, Vieira LQ, Ribeiro-Dias F, Oliveira MAP. Leishmania braziliensis amastigotes stimulate production of IL-1β, IL-6, IL-10 and TGF-β by peripheral blood mononuclear cells from nonendemic area healthy residents. Parasite Immunol 2014; 36:225-31. [PMID: 24575815 DOI: 10.1111/pim.12109] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Accepted: 02/21/2014] [Indexed: 12/13/2022]
Abstract
Leishmania (Viannia) braziliensis causes cutaneous and mucosal leishmaniasis in several countries in Latin America. In mammals, the parasites live as amastigotes, interacting with host immune cells and stimulating cytokine production that will drive the type of the specific immune responses. Generation of Th17 lymphocytes is associated with tissue destruction and depends on IL-1β, IL-6, TGF-β and IL-23 production, whereas IL-10 and TGF-β are associated with tissue protection. Here, we evaluate whether amastigotes stimulate peripheral blood mononuclear cells (PBMCs) from healthy donors to produce the major cytokines responsible for the generation of Th17. Seven L. (V.) braziliensis isolates from patients with different clinical forms of leishmaniasis were expanded in interferon-γ knockout mice to obtain amastigotes and in culture to get promastigotes. The parasites were used to stimulate PBMCs from healthy donors, and cytokine production was evaluated by ELISA or qPCR. Amastigotes and promastigotes induced IL-10 production in PBMCs; however, only amastigotes induced IL-1β, IL-6 and TGF-β. These data demonstrate for the first time that L. (V.) braziliensis amastigotes directly stimulate production of a unique pattern of cytokines that could contribute to the generation of Th17.
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Affiliation(s)
- C M Gomes
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brasil
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