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Diociaiuti M, Bonanni R, Cariati I, Frank C, D’Arcangelo G. Amyloid Prefibrillar Oligomers: The Surprising Commonalities in Their Structure and Activity. Int J Mol Sci 2021; 22:ijms22126435. [PMID: 34208561 PMCID: PMC8235680 DOI: 10.3390/ijms22126435] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 06/10/2021] [Accepted: 06/14/2021] [Indexed: 12/12/2022] Open
Abstract
It has been proposed that a “common core” of pathologic pathways exists for the large family of amyloid-associated neurodegenerations, including Alzheimer’s, Parkinson’s, type II diabetes and Creutzfeldt–Jacob’s Disease. Aggregates of the involved proteins, independently from their primary sequence, induced neuron membrane permeabilization able to trigger an abnormal Ca2+ influx leading to synaptotoxicity, resulting in reduced expression of synaptic proteins and impaired synaptic transmission. Emerging evidence is now focusing on low-molecular-weight prefibrillar oligomers (PFOs), which mimic bacterial pore-forming toxins that form well-ordered oligomeric membrane-spanning pores. At the same time, the neuron membrane composition and its chemical microenvironment seem to play a pivotal role. In fact, the brain of AD patients contains increased fractions of anionic lipids able to favor cationic influx. However, up to now the existence of a specific “common structure” of the toxic aggregate, and a “common mechanism” by which it induces neuronal damage, synaptotoxicity and impaired synaptic transmission, is still an open hypothesis. In this review, we gathered information concerning this hypothesis, focusing on the proteins linked to several amyloid diseases. We noted commonalities in their structure and membrane activity, and their ability to induce Ca2+ influx, neurotoxicity, synaptotoxicity and impaired synaptic transmission.
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Affiliation(s)
- Marco Diociaiuti
- Centro Nazionale Malattie Rare, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy
- Correspondence:
| | - Roberto Bonanni
- Department of Systems Medicine, “Tor Vergata” University of Rome, Via Montpellier 1, 00133 Rome, Italy; (R.B.); (G.D.)
| | - Ida Cariati
- PhD in Medical-Surgical Biotechnologies and Translational Medicine, Department of Clinical Sciences and Translational Medicine, “Tor Vergata” University of Rome, Via Montpellier 1, 00133 Rome, Italy;
| | - Claudio Frank
- UniCamillus-Saint Camillus International University of Health Sciences, Via di Sant’Alessandro 8, 00131 Rome, Italy;
| | - Giovanna D’Arcangelo
- Department of Systems Medicine, “Tor Vergata” University of Rome, Via Montpellier 1, 00133 Rome, Italy; (R.B.); (G.D.)
- Centre of Space Bio-Medicine, “Tor Vergata” University of Rome, Via Montpellier 1, 00133 Rome, Italy
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Sokolov PA, Bondarev SA, Belousov MV, Zhouravleva GA, Kasyanenko NA. Sup35NMp morphology evaluation on Au, Si, formvar and mica surfaces using AFM, SEM and TEM. J Struct Biol 2017; 201:5-14. [PMID: 29078994 DOI: 10.1016/j.jsb.2017.10.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 09/24/2017] [Accepted: 10/17/2017] [Indexed: 11/17/2022]
Abstract
Prion and some other incurable human neurodegenerative diseases are associated with misfolding of specific proteins, followed by the formation of amyloids. Despite the widespread usage of the transmission electron and of the atomic force microscopy for studing such amyloids, many related methodological issues still have not been studied until now. Here, we consider one of the first amyloids found in Saccharomyces cerevisiae yeast, i.e. Sup35NMp, to study the adsorption of monomeric protein and its fibrils on the surface of mica, silica, gold and on formvar film. Comparison of linear characteristics of these units calculated by processing of images obtained by the atomic force, transmission and scanning electron microscopy was carried out. The minimal number of measurements of fibril diameters to obtain the values in a given confidence interval were determined. We investigated the film formed by monomeric protein on mica surface, which veiled some morphology features of fibrils. Besides, we revealed that parts of the Sup35NMp excluded from the fibril core can form a wide "coat". The length of the protein forming the core of the fibrils was estimated.
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Affiliation(s)
- P A Sokolov
- Department of Physics, St. Petersburg State University, Russia.
| | - S A Bondarev
- Department of Genetics and Biotechnology, St. Petersburg State University, Russia; The Laboratory of Amyloid Biology, St. Petersburg State University, Russia
| | - M V Belousov
- Department of Genetics and Biotechnology, St. Petersburg State University, Russia
| | - G A Zhouravleva
- Department of Genetics and Biotechnology, St. Petersburg State University, Russia; The Laboratory of Amyloid Biology, St. Petersburg State University, Russia
| | - N A Kasyanenko
- Department of Physics, St. Petersburg State University, Russia
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Sideri T, Yashiroda Y, Ellis DA, Rodríguez-López M, Yoshida M, Tuite MF, Bähler J. The copper transport-associated protein Ctr4 can form prion-like epigenetic determinants in Schizosaccharomyces pombe. MICROBIAL CELL 2017; 4:16-28. [PMID: 28191457 PMCID: PMC5302157 DOI: 10.15698/mic2017.01.552] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Prions are protein-based infectious entities associated with fatal brain diseases
in animals, but also modify a range of host-cell phenotypes in the budding
yeast, Saccharomyces cerevisiae. Many questions remain about
the evolution and biology of prions. Although several functionally distinct
prion-forming proteins exist in S. cerevisiae, [HET-s] of
Podospora anserina is the only other known fungal prion.
Here we investigated prion-like, protein-based epigenetic transmission in the
fission yeast Schizosaccharomyces pombe. We show that
S. pombe cells can support the formation and maintenance of
the prion form of the S. cerevisiae Sup35 translation factor
[PSI+], and that the formation and propagation
of these Sup35 aggregates is inhibited by guanidine hydrochloride, indicating
commonalities in prion propagation machineries in these evolutionary diverged
yeasts. A proteome-wide screen identified the Ctr4 copper transporter subunit as
a putative prion with a predicted prion-like domain. Overexpression of
the ctr4 gene resulted in large Ctr4 protein aggregates
that were both detergent and proteinase-K resistant. Cells carrying such
[CTR+] aggregates showed increased sensitivity
to oxidative stress, and this phenotype could be transmitted to aggregate-free
[ctr-] cells by transformation with
[CTR+] cell extracts. Moreover, this
[CTR+] phenotype was inherited in a
non-Mendelian manner following mating with naïve
[ctr-] cells, but intriguingly the
[CTR+] phenotype was not eliminated by
guanidine-hydrochloride treatment. Thus, Ctr4 exhibits multiple features
diagnostic of other fungal prions and is the first example of a prion in fission
yeast. These findings suggest that transmissible protein-based determinants of
traits may be more widespread among fungi.
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Affiliation(s)
- Theodora Sideri
- University College London, Research Department of Genetics, Evolution & Environment and Institute of Healthy Ageing, London, U.K
| | - Yoko Yashiroda
- Chemical Genetics Laboratory, RIKEN and Chemical Genomics Research Group, RIKEN CSRS, Saitama, Japan
| | - David A Ellis
- University College London, Research Department of Genetics, Evolution & Environment and Institute of Healthy Ageing, London, U.K
| | - María Rodríguez-López
- University College London, Research Department of Genetics, Evolution & Environment and Institute of Healthy Ageing, London, U.K
| | - Minoru Yoshida
- Chemical Genetics Laboratory, RIKEN and Chemical Genomics Research Group, RIKEN CSRS, Saitama, Japan
| | - Mick F Tuite
- Kent Fungal Group, University of Kent, School of Biosciences, Canterbury, Kent, U.K
| | - Jürg Bähler
- University College London, Research Department of Genetics, Evolution & Environment and Institute of Healthy Ageing, London, U.K
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Uppal S, Singh AK, Arya R, Tewari D, Jaiswal N, Kapoor A, Bera AK, Nag A, Kundu S. Phe28 B10 Induces Channel-Forming Cytotoxic Amyloid Fibrillation in Human Neuroglobin, the Brain-Specific Hemoglobin. Biochemistry 2016; 55:6832-6847. [PMID: 27951646 DOI: 10.1021/acs.biochem.6b00617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Since its discovery, neuroglobin (Ngb), a neuron-specific oxygen binding hemoglobin, distinct from the classical myoglobin and blood hemoglobin, has attracted attention as an endogenous neuroprotectant. Recent reports suggest that Ngb protects neurons from brain stroke, ischemic stress-induced degeneration, and other brain disorders. Proteins with a specific role in neuroprotection are often associated with neurodegeneration, as well, depending on the cellular environment or specific cellular triggers that tilt the balance one way or the other. This investigation explored the potential role of Ngb in amyloid fibril-related neuronal disorder. Ngb was capable of amyloid formation in vitro at neutral pH and ambient temperature, in both apo and holo forms, albeit at a slower rate in the holo form, unlike other hemoglobins that exhibit such behavior exclusively in the apo states. Elevated temperature enhanced the rate of fibril formation significantly. The B-helix, which is known to play a major role in Ngb ligand binding kinetics, was found to be amyloidogenic with the Phe28B10 amino acid side chain as the key inducer of fibrillation. The Ngb amyloid fibril was also significantly cytotoxic to neuroblastoma cell lines, compared to those obtained from reference hemoglobins. The Ngb fibril probably promoted toxicity by inducing channel formation in the cell membrane, as investigated here using synthetic lipid bilayer membranes and the propidium iodide uptake assay. These findings imply that Ngb plays a role in neurodegenerative disorders in vivo, for which there seems to be indirect evidence by association. Ngb thus presents a novel prospect for understanding amyloid-related brain disorders beyond the limited set of proteins currently investigated for such diseases.
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Affiliation(s)
- Sheetal Uppal
- Department of Biochemistry, University of Delhi South Campus , New Delhi 110021, India
| | - Amit Kumar Singh
- Department of Biochemistry, University of Delhi South Campus , New Delhi 110021, India
| | - Richa Arya
- Department of Biochemistry, University of Delhi South Campus , New Delhi 110021, India
| | - Debanjan Tewari
- Department of Biotechnology, Indian Institute of Technology Madras , Chennai 600036, India
| | - Neha Jaiswal
- Department of Biochemistry, University of Delhi South Campus , New Delhi 110021, India
| | - Abhijeet Kapoor
- Department of Biochemistry, University of Delhi South Campus , New Delhi 110021, India
| | - Amal Kanti Bera
- Department of Biotechnology, Indian Institute of Technology Madras , Chennai 600036, India
| | - Alo Nag
- Department of Biochemistry, University of Delhi South Campus , New Delhi 110021, India
| | - Suman Kundu
- Department of Biochemistry, University of Delhi South Campus , New Delhi 110021, India
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Hideshima S, Wustoni S, Kuroiwa S, Nakanishi T, Koike-Takeshita A, Osaka T. Monitoring Amyloid Sup35NM Growth with Label-Free Electrical Detection Using a Field-Effect Transistor Biosensor. ChemElectroChem 2013. [DOI: 10.1002/celc.201300151] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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