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Recent research news on Artificial Biology


Distinct Network Morphologies from In Situ Polymerization of Microtubules in Giant Polymer-Lipid Hybrid Vesicles

Creating artificial cells with a dynamic cytoskeleton, akin to those in living cells, is a major goal in bottom-up synthetic biology. In this study, we demonstrate the in situ polymerization of microtubules encapsulated in giant polymer-lipid hybrid vesicles (GHVs) composed of 1,2-dioleoyl-sn-glycero-3-phosphocholine and an amphiphilic block copolymer. The block copolymer is comprised of poly(cholesteryl methacrylate-co-butyl methacrylate) as the hydrophobic block and either poly(6-O-methacryloyl-D-galactopyranose) or poly(carboxyethyl acrylate) as the hydrophilic extension. Depending on the concentrations of guanosine triphosphate (GTP) or its slowly hydrolyzable analog, guanosine-5′-[(α,β)-methyleno]triphosphate (GMPCPP), different microtubule morphologies are observed, including encapsulated microtubule networks, spike protrusions, as well as membrane-associated or aggregated microtubules. Overall, this work represents a step forward in mimicking the cellular cytoskeletons and uncovering the influence of membrane composition on microtubule morphologies.

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Golan, N., Parizat, A., Tabachnikov, O., Barnea, E., Olsen, W. P., Otzen, D. E. & Landau, M. (2025). Resilience and Charge-Dependent Fibrillation of functional amyloid: Interactions of Pseudomonas Biofilm-Associated FapB and FapC Amyloids. The Journal of Biological Chemistry, 301(2), Article 108096. https://doi.org/10.1016/j.jbc.2024.108096
Stenberg, K., Korhonen, S., Seemab, U., Dupont, D. M., Kjems, J., Honkakoski, P. & Subrizi, A. (2025). Selection of locally administered ocular tissue-targeting RNA aptamers using in vivo SELEX. European Journal of Pharmaceutical Sciences, 212, Article 107217. https://doi.org/10.1016/j.ejps.2025.107217
Baindoor, S., Gibriel, H. A. Y., Kool, L., Su, J., Demaegd, K. C., Venø, M. T., Van Den Berg, L. H., Kjems, J., Van Es, M. A. & Prehn, J. H. M. (2025). Serum small non-coding RNA define molecular subtypes in amyotrophic lateral sclerosis. Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration. Advance online publication. https://doi.org/10.1080/21678421.2025.2574690