Advances in tissue engineering for tissue and organ regeneration: Bridging preclinical models and clinical applications
Background: Tissue and organ injuries caused by trauma, degenerative disorders, and chronic diseases represent significant clinical challenges due to the limited regenerative capacity of many human tissues and the shortage of available donor organs. Tissue engineering has emerged as an interdisciplinary field that combines biomaterials, cellular therapies, and biological approaches to develop regenerative solutions and facilitate the restoration of damaged tissues. Aim: This review aims to provide an overview of recent advances in tissue engineering for tissue and organ regeneration, with particular emphasis on the translational pathway from preclinical research models to clinical applications. Methods: Relevant studies indexed in scientific databases were reviewed to evaluate major tissue engineering approaches, including biomaterial-based scaffolds, cell-based therapies, and biofabrication technologies. Evidence from ex vivo, in vitro, in vivo, and clinical studies was analyzed to identify current achievements, translational barriers, and future opportunities in regenerative medicine. Results: Recent advances in tissue engineering have demonstrated promising potential for the regeneration of various tissues, including skin, bone, cartilage, cardiovascular, and neural tissues. Preclinical studies have contributed to understanding cellular behavior, biomaterial performance, tissue integration, and functional recovery. Although several tissue-engineered products and approaches have reached clinical evaluation, challenges related to vascularization, immune compatibility, large-scale manufacturing, regulatory requirements, and long-term safety continue to limit widespread clinical adoption. Conclusion: Tissue engineering provides a promising framework for developing regenerative therapies and bridging the gap between laboratory discoveries and clinical practice. Continued integration of biological, engineering, and clinical research is essential to achieve effective and safe regenerative treatments. Relevance for patients: Advances in tissue engineering may offer future therapeutic alternatives for patients suffering from tissue damage, degenerative diseases, and organ dysfunction by improving regenerative treatment options and reducing limitations associated with conventional transplantation.

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