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Flow Alignment of E...
Flow Alignment of Extracellular Vesicles: Structure and Orientation of Membrane-Associated Bio-macromolecules Studied with Polarized Light
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- Szigyártó, Imola Cs (författare)
- Magyar Tudomanyos Akademia,Hungarian Academy of Sciences
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- Deák, Róbert (författare)
- Magyar Tudomanyos Akademia,Hungarian Academy of Sciences
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- Mihály, Judith (författare)
- Magyar Tudomanyos Akademia,Hungarian Academy of Sciences
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- Rocha, Sandra, 1975 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Zsila, Ferenc (författare)
- Magyar Tudomanyos Akademia,Hungarian Academy of Sciences
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- Varga, Zoltán (författare)
- Magyar Tudomanyos Akademia,Hungarian Academy of Sciences,Semmelweis Egyetem,Semmelweis University
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- Beke-Somfai, Tamas, 1977 (författare)
- Magyar Tudomanyos Akademia,Hungarian Academy of Sciences,Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2018-02-07
- 2018
- Engelska.
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Ingår i: ChemBioChem. - : Wiley. - 1439-7633 .- 1439-4227. ; 19:6, s. 545-551
- Relaterad länk:
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http://real.mtak.hu/...
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- Extracellular vesicles (EVs) are currently in scientific focus, as they have great potential to revolutionize the diagnosis and therapy of various diseases. However, numerous aspects of these species are still poorly understood, and thus, additional insight into their molecular-level properties, membrane–protein interactions, and membrane rigidity is still needed. We here demonstrate the use of red-blood-cell-derived EVs (REVs) that polarized light spectroscopy techniques, linear and circular dichroism, can provide molecular-level structural information on these systems. Flow-linear dichroism (flow-LD) measurements show that EVs can be oriented by shear force and indicate that hemoglobin molecules are associated to the lipid bilayer in freshly released REVs. During storage, this interaction ceases; this is coupled to major protein conformational changes relative to the initial state. Further on, the degree of orientation gives insight into vesicle rigidity, which decreases in time parallel to changes in protein conformation. Overall, we propose that both linear dichroism and circular dichroism spectroscopy can provide simple, rapid, yet efficient ways to track changes in the membrane–protein interactions of EV components at the molecular level, which may also give insight into processes occurring during vesiculation.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
- NATURVETENSKAP -- Biologi -- Biofysik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biophysics (hsv//eng)
Nyckelord
- liposomes
- transition moment orientation
- probe molecules
- polarized light spectroscopy
- extracellular vesicles
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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