• Tissue engineering and Stem Cell
  • Amirmohammad Ghazanfari,1,*
    1. Imam Ali Guidance School


  • Introduction: When tissues or organs have been so seriously unhealthy or lost by cancer, inborn unusualness, or damaged that usual medical treatments are no more suitable, dummy organs (including tissues) or organ transplantation are the first selection to reconstruct the destroyed tissues or organs. However, todays, these surgical remedies have been facing a number of disagreements with. Artificial organs have been improved by wonderful improvements in the biomedical engineering in the past decades, but however they need better biocompatibility and bio functionality. Worries in current organ transplantation consist lack of forgiven organs and immune rejection, although immunosuppressive treatment has recently much up to date.
  • Methods: As pointed above, the cell, growth and scaffold factor are the three main materials for tissue engineering. The cell combines matrices of young tissue, while the scaffold affords the suitable environment for cells to be able to effectively complete their duties. The mission of growth factors is to help and increase cells to remake new tissue. Although many researches have been undertaken to regenerate various kinds of tissue, there are still a lot of critical factors contains in this regenerative schedule, containing, scaffold construction, cell source, cell seeding, matrix production analysis, culture environment, mechanical properties of cell–scaffold construct and reasonable animal models. However, it may be possible sometime in the future to separate unhealthy cells by means of a partial biopsy, increase the cell amount in the culture, seed cells onto a three-dimensional scaffold and implant to the similar patient.
  • Results: Scaffold-based tissue engineering using stem cells has progressed the area of tissue reformation in medicine; Anyway, it is still at the exiguity level. A wide in-depth scientific information and study of various stem cells will go a long path to convert them to clinical use. Furthermore, rather extra studies are required to be accomplished on various scaffold plans because the achievement of tissue engineering belongs on these scaffolds and enables a niche to transplanted cells. In addition, most of the usage of stem cells in tissue regeneration has been guided toward small tissue illness as such tries to expand bioengineered grafts to remedy larger tissue defects (bone defects) should be made. So many stem cells like induced pluripotent stem cell, mesenchymal stem cells, and ASCs are promising source of patient-specific stem cells with great regenerative potential. However, few or no clinical translation is available as they are potential teratoma and carcinogenic causative agents, and avoidance of certain of these cells is supposed unethical. Anyway, more clinical considerations are demanded to be suitably certain they are secure clinically
  • Conclusion: However, Scaffold-based bone tissue engineering using stem cells is at its minority. A deep scientific information of each special stem cell type is essential to recognize how to convert them to clinic, which may enforce completely modern practices. So, the opinion of using heterogeneous cell sources (e.g., adipose and bone marrow tissues) that do not need in vitro culture might affect in stronger influence. This is individually considerable as stem cells appear to have mechanical memory and save knowledge from previous physical environments, which can affect the cell chance. Overcoming the mass conveyor restriction for a bioengineered bone graft will clear the way to the cure of rough bone weakness. Contemporary tissue engineering cures are often aimed for partly small defects and are unskilled contrasted to native tissue. Altogether, there are many barriers on the way for the remedy of old degenerative sicknesses and in regenerative cure using MSCs. Some of the other existing challenges contain guaranteeing the long-term modality of mending and avoiding potential side results of cure such as carcinogenesis.
  • Keywords: tissue engineering, disease, stem cell, scaffold