Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan; Chemical Biology and Molecular Biophysics, Taiwan International Graduate Program, Academia Sinica, Taipei 11529, Taiwan; Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan.
Biomater Adv. 2022 Nov;142:213156. doi: 10.1016/j.bioadv.2022.213156. Epub 2022 Oct 19.
Bottom-up approaches in creating artificial cells that can mimic natural cells have significant implications for both basic research and translational application. Among various artificial cell models, liposome is one of the most sophisticated systems. By encapsulating proteins and associated biomolecules, they can functionally reconstitute foundational features of biological cells, such as the ability to divide, communicate, and undergo shape deformation. Yet constructing liposome artificial cells from the genetic level, which is central to generate self-sustained systems remains highly challenging. Indeed, many studies have successfully established the expression of gene-coded proteins inside liposomes. Further, recent endeavors to build a direct integration of gene-expressed proteins for reconstituting molecular functions and phenotypes in liposomes have also significantly increased. Thus, this review presents the development of liposome-based artificial cells to demonstrate the process of gene-expressed proteins and their reconstitution to perform desired molecular and cell-like functions. The molecular and cellular phenotypes discussed here include the self-production of membrane phospholipids, division, shape deformation, self-DNA/RNA replication, fusion, and intercellular communication. Together, this review gives a comprehensive overview of gene-expressing liposomes that can stimulate further research of this technology and achieve artificial cells with superior properties in the future.
自下而上的方法在创建能够模拟天然细胞的人工细胞方面具有重要意义,既适用于基础研究,也适用于转化应用。在各种人工细胞模型中,脂质体是最复杂的系统之一。通过包裹蛋白质和相关生物分子,它们可以在功能上重新构建生物细胞的基本特征,如分裂、通讯和形状变形的能力。然而,从遗传水平构建脂质体人工细胞,这是生成自维持系统的核心,仍然极具挑战性。事实上,许多研究已经成功地在脂质体内部表达了基因编码的蛋白质。此外,最近为了建立基因表达蛋白的直接整合,以重建脂质体中的分子功能和表型,也有了显著的进展。因此,本文综述了基于脂质体的人工细胞的发展,以展示基因表达蛋白的过程及其在执行所需的分子和类似细胞功能方面的重建。这里讨论的分子和细胞表型包括膜磷脂的自我合成、分裂、形状变形、自我 DNA/RNA 复制、融合和细胞间通讯。总之,本文综述了基因表达脂质体,这可以激发对该技术的进一步研究,并在未来实现具有优异性能的人工细胞。