Cited by 40Lipid Membrane Structure and BehaviorAdvanced biosensing and bioanalysis techniquesRNA Interference and Gene Delivery

Synthetic Membrane Shaper for Controlled Liposome Deformation

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De Franceschi, Nicola, Pezeshkian, Weria, Fragasso, Alessio, Bruininks, Bart M. H., Tsai, Sean, Marrink, Siewert J., Dekker, Cees·2023·ACS Nano

Published version of a preprint

Abstract

Shape defines the structure and function of cellular membranes. In cell division, the cell membrane deforms into a "dumbbell" shape, while organelles such as the autophagosome exhibit "stomatocyte" shapes. Bottom-up in vitro reconstitution of protein machineries that stabilize or resolve the membrane necks in such deformed liposome structures is of considerable interest to characterize their function. Here we develop a DNA-nanotechnology-based approach that we call the synthetic membrane shaper (SMS), where cholesterol-linked DNA structures attach to the liposome membrane to reproducibly generate high yields of stomatocytes and dumbbells. In silico simulations confirm the shape-stabilizing role of the SMS. We show that the SMS is fully compatible with protein reconstitution by assembling bacterial divisome proteins (DynaminA, FtsZ:ZipA) at the catenoidal neck of these membrane structures. The SMS approach provides a general tool for studying protein binding to complex membrane geometries that will greatly benefit synthetic cell research.

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Crossref · 10.1021/acsnano.2c06125

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  • FreeDTS methods have been shown to predict cell-in-cell morphologies.

    “However, the methods used by FreeDTS have been shown to predict cell-in-cell morphologies,37”

    From Bringing the genetically minimal cell to life on a computer in 4D (2026) · cites this paper as [37]

    The Methods section describes the dynamically triangulated surface (DTS) simulation technique, and the Results report that DTS simulations generate stomatocyte-shaped liposomes. That supports the claim about the simulation method predicting an inward-folded morphology, but the paper does not report a prediction of actual cell-in-cell morphologies or identify the software as FreeDTS. Page numbers are unavailable in our copy. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • A curvature constant of 0.3 corresponds to dumbbell-like membrane shapes similar to the ones observed in imaging of Syn3A, as shown by previous theoretical studies.

    “This value was chosen because previous theoretical studies have shown that a curvature constant of 0.3 corresponds to dumbbell-like membrane shapes similar to the ones observed in imaging of Syn3A.37”

    From Bringing the genetically minimal cell to life on a computer in 4D (2026) · cites this paper as [37]

    The Results section, “Establishing a Synthetic Membrane Shaper to Morph Liposomes into Dumbbells or Stomatocytes” (page not provided), says simulations produce dumbbell structures when membrane curvature is applied. It does not establish that a curvature constant of 0.3 produces those shapes or compare them with Syn3A imaging. (LLM, conf=0.82)

    Experimental — accuracy not yet measured

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Authors
De Franceschi, N., Pezeshkian, W., Fragasso, A., Bruininks, B. M. H., Tsai, S., Marrink, S. J., & Dekker, C.
Affiliations
  • Department of Bionanoscience, Kavli Institute of Nanoscience Delft, Delft University of Technology, 2629 HZDelft, The Netherlands
  • University of Copenhagen (DK)
  • Delft University of Technology (NL)
  • University of Groningen (NL)
Corresponding author
Dekker, Cees
Venue
ACS Nano
Published
2022-11-28
Volume
17
Issue
2
Pages
966-978
ISSN
  • 1936-0851 (ISSN-L)
  • 1936-086X
OpenAlex
W4310131548
Cited by
40
References
59
Citations by year
2026: 6 · 2025: 11 · 2024: 8 · 2023: 13 · 2022: 2
FWCI
2.78
Type
journal article
Language
en
Open access
Locations
  • ACS Nano (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (publishedVersion, cc-by)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion, cc-by-nc-nd)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion, cc-by)
Funders
  • Novo Nordisk Fonden (NNF18SA0035142)
  • H2020 Marie Sklodowska-Curie Actions (847523)
  • H2020 European Research Council (883684)
  • BaSyC program of NWO-OCW
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Lipid Membrane Structure and Behavior
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Advanced biosensing and bioanalysis techniques
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
Keywords
liposome deformation, stomatocytes, DNA nanotechnology, FtsZ, protein-membrane binding, artificial cells

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