Adipose tissue is a rich, ubiquitous, and easily accessible source for multipotent mesenchymal stromal/stem cells (MSCs), so-called adipose-derived stromal/stem cells (ASCs). Primary isolated ASCs are a heterogeneous preparation consisting of several subpopulations of stromal/stem and precursor cells. Donor-specific differences in ASC isolations and the lack of culture standardization hinder the comparison of results from different studies. Nevertheless, ASCs are already being used in different in vivo models and clinical trials to investigate their ability to improve tissue and organ regeneration. Many questions concerning their counterparts and biology in situ, their differentiation potential in vitro and in vivo, and the mechanisms of regeneration (paracrine effects, including regeneration-promoting factors and extracellular vesicles, differentiation, and immunomodulation) are not completely understood or remain unanswered. This Special Issue covers research articles investigating various adipose tissues as a source for ASC isolation, specific cultures methods to enhance proliferation or viability, and the differentiation capacity. Furthermore, other studies highlight aspects of various diseases, the immunosuppressive potential of ASCs and their derivates, or the in vivo tracking of transplanted ASCs. This edition is complemented by a review that summarizes the current knowledge of spheroid culture system methods and applications for mesenchymal stem cells.

Listed by Unglue.it.

Three-dimensional (3D) printing has evolved massively during the last years. The 3D printing technologies offer various advantages, including: i) tailor-made design, ii) rapid prototyping, and iii) manufacturing of complex structures. Importantly, 3D printing is currently finding its potential in tissue engineering, wound dressings, tissue models for drug testing, prosthesis, and biosensors, to name a few. One important factor is the optimized composition of inks that can facilitate the deposition of cells, fabrication of vascularized tissue and the structuring of complex constructs that are similar to functional organs. Biocomposite inks can include synthetic and natural polymers, such as poly (ε-caprolactone), polylactic acid, collagen, hyaluronic acid, alginate, nanocellulose, and may be complemented with cross-linkers to stabilize the constructs and with bioactive molecules to add functionality. Inks that contain living cells are referred to as bioinks and the process as 3D bioprinting. Some of the key aspects of the formulation of bioinks are, e.g., the tailoring of mechanical properties, biocompatibility and the rheological behavior of the ink which may affect the cell viability, proliferation, and cell differentiation.The current Special Issue emphasizes the bio-technological engineering of novel biocomposite inks for various 3D printing technologies, also considering important aspects in the production and use of bioinks.

Listed by Unglue.it.

This reprint focuses on fundamental and applied research involving the combination of biomaterials and cancer cells to develop a three-dimensional (3D) tumor microenvironment in vitro, in which carcinogenesis mechanisms can be studied and therapies can be screened. Such models are becoming quite popular within the bioengineering community; thus, many technologies are being tested to obtain the best scaffold for each tumor. In any case, only a tight interaction of bioengineers with cancer biologists and oncologists can make such 3D models progress, with them finally reaching a clinical relevance. On the other hand, the medical community is approaching simpler 3D in vitro models not provided with sufficient extracellular matrix biomimicry, such as spheroids and organoids, which may not be self-exhaustive; therefore, cancer researchers could benefit from closer contact with bioengineers. The aim of this reprint is to help generate shared knowledge and promote strong interdisciplinary collaboration with the ultimate goal of contributing to the acceleration of the discovery and validation of more precise therapies to fight cancer.

Listed by Unglue.it.

This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact

Listed by Unglue.it.

Materials science and engineering are strongly developing tools with increasing impact in the biotechnological and biomedical areas. Interestingly, research in molecular and cellular biology is often at the core of the design and development of materials-based approaches, providing biological rationale. Focused on research relying on biology–materials interaction, IJMS launched a Special Issue named “Cells and Materials for Disease Modeling and Regenerative Medicine”. The aim of the Special Issue was to generate a compilation of in vitro and in vivo strategies based on cell–material interactions. This book compiles the papers published in that Special Issue and includes a selection of six original scientific experimental articles and six comprehensive reviews. We are convinced that this collection of articles shows representative examples of the state of the art in the field, unveiling the relevance of materials research in generating new regenerative medicine and disease modeling approaches.

Listed by Unglue.it.

Cardiovascular disease (CVD) currently represents one of the leading causes of death worldwide. Each year, more than 17.9 million people die due to CVD manifestations. To reverse these manifestations, the transplantation of secondary vessels or the use of synthetic vascular grafts represents the gold standard procedure. However, significant adverse reactions have been described in the literature regarding the use of these type of grafts. In this regard, modern therapeutic strategies focused on CVD therapeutics must be proposed and evaluated. As alternative therapies, advanced tissue engineering approaches, including decellularization procedures and the 3D additive bio-printing methods, are currently being investigated. In this Special Issue of Bioengineering, we aimed to highlight modern approaches regarding CVD. This Special Issue, entitled “Modern Approaches in Cardiovascular Disease Therapeutics: From Molecular Genetics to Tissue Engineering”, includes 5 articles. These articles are related to the efficient production of small-diameter vascular grafts, vascular graft development with 3D printing approaches, and in vitro models for the improved assessment of atherosclerosis mechanisms. The Guest Editors of this Special Issue wish to express their gratitude to all contributors for their unique and outstanding articles. Additionally, special credit is given to all reviewers for their comprehensive analysis and overall effort in improving the quality of the published articles.

Listed by Unglue.it.

In recent years, researchers have shown a special interest in natural products as alternative methods for the prevention, treatment, and/or management of various skin illnesses and disorders, primarily due to their natural availability, efficacity, reduced cost, and minimal toxicity. In a similar vein, synthetic bioactives, as well as small molecules, have been studied in vitro, in vivo, and in clinical studies as potential drugs or supplements. This Special Issue of Nutrients comprises an array of literature reviews, original communications, and studies on the roles of natural products, synthetic bioactives, and small molecules in a variety of skin disorders and diseases, such as aging, atopic dermatitis, cutaneous T-cell lymphomas, melanoma, allergies, hyperpigmentation, inflammation, and more, which were investigated through in vitro and ex vivo approaches, preclinical trials, cell-based assays, and animal models. The mechanisms of action of certain compounds are proposed, while others are currently under investigation. The authors of the papers also explore technologies designed to improve the bioavailability and delivery of certain compounds. In lieu of ongoing research on a variety of skin disorders, the wealth of information published in this Special Issue can act as a springboard for the development of new preventive and therapeutic modalities for the management of skin diseases.

Listed by Unglue.it.

Recent advances in microsystems technology and cell culture techniques have led to the development of organ-on-chip microdevices that produce tissue-level functionality, not possible with conventional culture models, by recapitulating natural tissue architecture and microenvironmental cues within microfluidic devices.

Listed by Unglue.it.

In this work, three-dimensional (3D) cell scaffolds based on cryogels of different polymers were developed and subsequently used for the cultivation of prostate carcinoma cells. Moreover, different scaffolds on the basis of the silk protein, fibroin, were synthesized and also served as cultivation environment for established prostate cancer cells.

Listed by Unglue.it.