ArticleBiophysical journal2024
Transient pores in hemifusion diaphragms.
Article in Biophysical journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Hemifusomes and proteolipid nanodroplets: a critical synthesis of an emerging model for endosomal membrane remodeling.Cell communication and signaling : CCS · 2026Review
- Biophysical Considerations in Cell Fusion.Advances in experimental medicine and biology · 2026Review
- Fission of double-membrane tubes under tension.Biophysical journal · 2024Article
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Authors and funding
4 authors.
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Abstract
Exchange of material across two membranes, as in the case of synaptic neurotransmitter release from a vesicle, involves the formation and poration of a hemifusion diaphragm (HD). The nontrivial geometry of the HD leads to environment-dependent control, regarding the stability and dynamics of the pores required for this kind of exocytosis. This work combines particle simulations, field-based calculations, and phenomenological modeling to explore the factors influencing the stability, dynamics, and possible control mechanisms of pores in HDs. We find that pores preferentially form at the HD rim, and that their stability is sensitive to a number of factors, including the three line tensions, membrane tension, HD size, and the ability of lipids to "flip-flop" across leaflets. Along with a detailed analysis of these factors, we discuss ways that vesicles or cells may use them to open and close pores and thereby quickly and efficiently transport material.
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