scholarly journals Implantatüberzüge für die in situ-Transfektion in der regenerativen Medizin

BIOspektrum ◽  
2021 ◽  
Vol 27 (4) ◽  
pp. 445-447
Author(s):  
Catharina Husteden ◽  
Thomas Groth ◽  
Christian Wölk

AbstractA promising approach in regenerative medicine is to modify cell behaviour with growth factors. However, the side of action has to be in spatial control. We present a new strategy in the field of regenerative medicine based on the combination of implant coatings with nanoscaled gene vectors. This enables the local restricted in situ transfection of cells to induce the production of cytokines. Therewith, the migration and differentiation of cells can be controlled to support tissue regeneration.

Author(s):  
Prajeesh Kumar ◽  
Shivansh Swamy ◽  
Raj K. Narang

The regenerative medicine field has led to the development of various biomaterials. One such development is in the form of Hydrogel Scaffold for Tissue regeneration. This review describes the biomedical advances in Hydrogel Scaffolds as emerging biomaterial for regenerative medicine.  Their unique ability to mimic the extra cellular environment, biocompatibility, flexible method of synthesis, desirable framework for cellular proliferation and survival has made them the material of choice. Hydrogels have demonstrated features which exemplify many of the broad-based manifestations of tissue engineering, providing realized as well as potential commercial value. Direct incorporation of cells and growth factors has led to efficient and more promising results in regenerative medicine. This review gives an overview of the various kinds of hydrogels, fabrication methods with specific features and few of the recent applications of hydrogels in the field of regenerative medicine.


2016 ◽  
Vol 72 (7) ◽  
pp. 403-407
Author(s):  
Przemysław Prządka ◽  
Zdzisław Kiełbowicz ◽  
Piotr Skrzypczak

Platelet-rich plasma (PRP) is an autogenic source of many growth factors that are a part of the healing process and tissue regeneration, which is the cause of its growing popularity in regenerative medicine. In this paper, we present a definition and characteristics of PRP, as well as ways of extracting it. We also present the issue of thrombocyte activation and the impact of thrombocytes on PRP. We explain how to obtain the optimal density of platelets in PRP, as well as its influence on tissues. Additionally, we describe some of the applications of PRP in experimental and clinical work.


2019 ◽  
Vol 20 (17) ◽  
pp. 4072 ◽  
Author(s):  
Leora Goldbloom-Helzner ◽  
Dake Hao ◽  
Aijun Wang

Collagen is the most widespread extracellular matrix (ECM) protein in the body and is important in maintaining the functionality of organs and tissues. Studies have explored interventions using collagen-targeting tissue engineered techniques, using collagen hybridizing or collagen binding peptides, to target or treat dysregulated or injured collagen in developmental defects, injuries, and diseases. Researchers have used collagen-targeting peptides to deliver growth factors, drugs, and genetic materials, to develop bioactive surfaces, and to detect the distribution and status of collagen. All of these approaches have been used for various regenerative medicine applications, including neovascularization, wound healing, and tissue regeneration. In this review, we describe in depth the collagen-targeting approaches for regenerative therapeutics and compare the benefits of using the different molecules for various present and future applications.


Pharmaceutics ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 136
Author(s):  
Masahiko Terauchi ◽  
Atsushi Tamura ◽  
Yoshinori Arisaka ◽  
Hiroki Masuda ◽  
Tetsuya Yoda ◽  
...  

Oral tissue regeneration has received growing attention for improving the quality of life of patients. Regeneration of oral tissues such as alveolar bone and widely defected bone has been extensively investigated, including regenerative treatment of oral tissues using therapeutic cells and growth factors. Additionally, small-molecule drugs that promote bone formation have been identified and tested as new regenerative treatment. However, treatments need to progress to realize successful regeneration of oral functions. In this review, we describe recent progress in development of regenerative treatment of oral tissues. In particular, we focus on cyclodextrin (CD)-based pharmaceutics and polyelectrolyte complexation of growth factors to enhance their solubility, stability, and bioactivity. CDs can encapsulate hydrophobic small-molecule drugs into their cavities, resulting in inclusion complexes. The inclusion complexation of osteoinductive small-molecule drugs improves solubility of the drugs in aqueous solutions and increases in vitro osteogenic differentiation efficiency. Additionally, various anionic polymers such as heparin and its mimetic polymers have been developed to improve stability and bioactivity of growth factors. These polymers protect growth factors from deactivation and degradation by complex formation through electrostatic interaction, leading to potentiation of bone formation ability. These approaches using an inclusion complex and polyelectrolyte complexes have great potential in the regeneration of oral tissues.


2016 ◽  
Vol 4 (25) ◽  
pp. 4410-4419 ◽  
Author(s):  
Yuankun Dai ◽  
Gang Liu ◽  
Lie Ma ◽  
Dongan Wang ◽  
Changyou Gao

Macro-porous fibrin scaffold was fabricated and used to induce cartilage regenerationin situwithout pre-loaded cells or growth factors.


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