Hydrogen Bonding‐Based Layer‐by‐Layer Assembly of Nature‐Derived Eggshell Membrane Hydrolysates and Coffee Melanoidins in Single‐Cell Nanoencapsulation

Living cells have the irreplaceable capability to achieve a wide range of complex biochemical reactions precisely and efficiently, which makes them attractive materials for therapeutic applications. In lieu of the traditional biochemical and biological approaches primarily focused on the augmentation of the innate functions of cells, there has been appreciable progress in the development of engineered therapeutic cells, mainly based on the chemical modifications of cell surfaces, at the single‐cell level, which empowers individual living cells with designed therapeutic functions in a cytocompatible manner. This review highlights the latest advances in the development of therapeutic living cells using single‐cell surface engineering, for potential applications in blood transfusion, drug delivery, cancer therapy, probiotic therapy, and tissue engineering and regenerative medicine. The methodological strategies for functionalizing cell surfaces with biomolecules, and inorganic and organic materials, to endow living cells with extrinsic physicochemical and biological properties as well as to increase the durability and efficacy of engineered therapeutic cells, are also briefly overviewed. The review ends with a perspective that discusses the construction of active cell‐in‐shell nanobiohybrid systems, in which exogenous materials formed on cell surfaces mutually and intimately communicate with the cells inside, as a future research direction for single‐cell surface engineering.

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Bioempowerment of Therapeutic Living Cells by Single‐Cell Surface Engineering

Yang

Choi

Nguyen

et al. 2023

Advanced Therapeutics

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Unveiling the Potential of Single‐Cell Encapsulation in Biomedical Applications: Current Advances and Future Perspectives

Pires‐Santos,

Nadine,

Mano

2024

Small Science

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The encapsulation of single cells has emerged as a promising field in recent years, owing to its potential applications in cell‐based therapeutics, bioprinting, in vitro cell culture, high‐throughput screening, and diagnostics. Single‐cell units offer several advantages, including compatibility with standard imaging techniques, superior diffusion rates, and lower material‐to‐cell volume ratios. They also serve as effective carriers for targeted drug delivery, allowing precise administration of therapeutics in cell‐mediated quantities. Moreover, single‐cell units exhibit improved circulation potential throughout the vasculature, with a reduced likelihood of entrapment compared to multicell strategies. However, the production of single‐cell units from random dispersion of cells follows the Poisson distribution, requiring the separation of empty and multicell units from single‐cell ones. Various methods have been developed to address this challenge; nevertheless, the majority of these strategies are either expensive or time‐consuming. This review provides an in‐depth analysis of the advantages and limitations of single‐cell units and their applications, as well as a comprehensive overview of the most used techniques for single‐cell encapsulation and sorting strategies.

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Cytoprotection of Probiotic Lactobacillus acidophilus with Artificial Nanoshells of Nature-Derived Eggshell Membrane Hydrolysates and Coffee Melanoidins in Single-Cell Nanoencapsulation

et al. 2023

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One-step fabrication method for thin films and shells is developed with nature-derived eggshell membrane hydrolysates (ESMHs) and coffee melanoidins (CMs) that have been discarded as food waste. The nature-derived polymeric materials, ESMHs and CMs, prove highly biocompatible with living cells, and the one-step method enables cytocompatible construction of cell-in-shell nanobiohybrid structures. Nanometric ESMH-CM shells are formed on individual probiotic Lactobacillus acidophilus, without any noticeable decrease in viability, and the ESMH-CM shells effectively protected L. acidophilus in the simulated gastric fluid (SGF). The cytoprotection power is further enhanced by Fe3+-mediated shell augmentation. For example, after 2 h of incubation in SGF, the viability of native L. acidophilus is 30%, whereas nanoencapsulated L. acidophilus, armed with the Fe3+-fortified ESMH-CM shells, show 79% in viability. The simple, time-efficient, and easy-to-process method developed in this work would contribute to many technological developments, including microbial biotherapeutics, as well as waste upcycling.

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Hydrogen Bonding‐Based Layer‐by‐Layer Assembly of Nature‐Derived Eggshell Membrane Hydrolysates and Coffee Melanoidins in Single‐Cell Nanoencapsulation

Cited by 3 publications

References 84 publications

Bioempowerment of Therapeutic Living Cells by Single‐Cell Surface Engineering

Bioempowerment of Therapeutic Living Cells by Single‐Cell Surface Engineering

Unveiling the Potential of Single‐Cell Encapsulation in Biomedical Applications: Current Advances and Future Perspectives

Cytoprotection of Probiotic Lactobacillus acidophilus with Artificial Nanoshells of Nature-Derived Eggshell Membrane Hydrolysates and Coffee Melanoidins in Single-Cell Nanoencapsulation

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