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Biomaterials and Scaffolds for Enhanced Production of Exosomes and Accelerated Tissue Repair and Regeneration

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Biomaterials".

Deadline for manuscript submissions: closed (20 April 2023) | Viewed by 3036

Special Issue Editor


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Guest Editor
School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
Interests: biomaterials; bone bioengineering; stem cells; biomaterials for tissue engineering; advanced bioceramics
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Special Issue Information

Dear Colleagues,

Exosomes are nano-sized extracellular vesicles (EVs) that contain various therapeutic components (protein, DNA, and RNA). In response to various cues (e.g., pharmaceuticals), human cells release exosomes into the surrounding physiological fluids which are subsequently taken up by neighboring or distant cells. The released exosomes can reprogram the recipient cells in specific pathways. For example, exosomes may lead to triggering biological phenomena such as the overexpression of pro-angiogenic proteins (e.g., vascular endothelial growth factor (VEGF). In the concept of tissue engineering and regenerative medicine, exosomes can be utilized as potent tools for the acceleration of the wound healing process. Therefore, several innovative approaches and strategies, including the use of biomaterials and scaffolds, have been developed and applied in order to derive cells to secrete exosomes with particular cargoes. As an illustration, bioactive glasses and glass-ceramics can significantly stimulate mesenchymal stem cells (MSCs) to secrete exosomes containing low levels of miR-342-5p and high amounts of miR-1290, which in turn induces endothelial cells (ECs) vascularization and intradermal angiogenesis. The present Special Issue aims to provide an invaluable collection of contributions and a platform for a scientific discussion focused on the role of biomaterials and scaffolds in enhancing exosomes’ secreting and subsequent accelerated tissue repair and regeneration. Original research papers and reviews are welcome in this Special Issue, the key topics of which include (but are not limited to) biomaterials, exosomes, stem cells, cell signaling, and tissue engineering. We look forward to receiving your contributions.

Dr. Saeid Kargozar
Guest Editor

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Keywords

  • biomaterials
  • scaffolds
  • exosomes
  • extracellular vesicles
  • stem cells
  • cell signaling
  • wound healing
  • tissue engineering

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Published Papers (1 paper)

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Review

13 pages, 4058 KiB  
Review
Effects of Bioactive Glasses (BGs) on Exosome Production and Secretion: A Critical Review
by Sara Gorgani, Seyede Atefe Hosseini, Andrew Z. Wang, Francesco Baino and Saeid Kargozar
Materials 2023, 16(11), 4194; https://doi.org/10.3390/ma16114194 - 5 Jun 2023
Cited by 3 | Viewed by 2430
Abstract
There is an increasing trend toward the application of bioactive glasses in different areas of biomedicine, including tissue engineering and oncology. The reason for this increase is mostly attributed to the inherent properties of BGs, such as excellent biocompatibility, and the ease of [...] Read more.
There is an increasing trend toward the application of bioactive glasses in different areas of biomedicine, including tissue engineering and oncology. The reason for this increase is mostly attributed to the inherent properties of BGs, such as excellent biocompatibility, and the ease of tailoring their properties by changing, for example, the chemical composition. Previous experiments have demonstrated that the interactions between BGs and their ionic dissolution products, and mammalian cells, can affect and change cellular behaviors, and thereby govern the performance of living tissues. However, limited research exists on their critical role in the production and secretion of extracellular vesicles (EVs) such as exosomes. Exosomes are nanosized membrane vesicles that carry various therapeutic cargoes such as DNA, RNA, proteins, and lipids, and thereby can govern cell–cell communication and subsequent tissue responses. The use of exosomes is currently considered a cell-free approach in tissue engineering strategies, due to their positive roles in accelerating wound healing. On the other hand, exosomes are known as key players in cancer biology (e.g., progression and metastasis), due to their capability to carry bioactive molecules between tumor cells and normal cells. Recent studies have demonstrated that the biological performance of BGs, including their proangiogenic activity, is accomplished with the help of exosomes. Indeed, therapeutic cargos (e.g., proteins) produced in BG-treated cells are transferred by a specific subset of exosomes toward target cells and tissues, and lead to a biological phenomenon. On the other hand, BGs are suitable delivery vehicles that can be utilized for the targeted delivery of exosomes to cells and tissues of interest. Therefore, it seems necessary to have a deeper understanding of the potential effects of BGs in the production of exosomes in cells that are involved in tissue repair and regeneration (mostly mesenchymal stem cells), as well as in those that play roles in cancer progression (e.g., cancer stem cells). This review aims to present an updated report on this critical issue, to provide a roadmap for future research in the fields of tissue engineering and regenerative medicine. Full article
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