Search

Blindness of the cornea is the major cause of blindness globally. Many approaches and strategies have been developed to replace or regenerate damaged cornea. Different biomaterials like biopolymeric hydrogels with excellent mechanical & physical properties have been used for the regeneration of corneal tissue. In this review, we focused on using the different types of hydrogels throughout in-vivo studies for the regeneration of corneal epithelial tissue. [ABSTRACT FROM AUTHOR]

The capacity of gelatin/chitosan/bioactive glass nanopowders (GEL/CS/BGNPs) scaffolds was investigated for increasing human endometrial stem cells (hEnSCs) differentiation into the endothelial cells in the presence of angiogenic factors. GEL/CS nanofibrous scaffold with different contents of BGNPs were fabricated and assessed. Expression of endothelial markers (CD31, vascular endothelial cadherin (VE-cadherin), and KDR) in differentiated cells was evaluated. Results showed the diameter of nanofiber increases with decreasing the BG content in GEL/CS scaffolds. Moreover,in vitrostudy indicated that the GEL/CS/BGNPs scaffold with 1.5% BGNPs content provided a suitable three-dimensional structure for endothelial cells differentiation. Thus, the GEL/CS/BGNPs scaffold can be recommended for blood vessels repair. [ABSTRACT FROM AUTHOR]

Background: Due to increasing clinical demand for adipose tissue, a suitable cell for reconstructive adipose tissue constructs is needed. In this study, we investigated the ability of Human Endometrial-derived stem cells (EnSCs) as a new source of mesenchymal stem cells to differentiate into adipocytes. EnSCs are the abundant and easy available source with no immunological response, for cell replacement therapy.Methods: Single-cell suspensions of EnSCs were obtained from endometrial tissues from 10 women experiencing normal menstrual cycles, and were cultured at clonal density (10 cells/cm2) or limiting dilution. Endometrial mesenchymal stem cellmarkers were examined flow cytometry. These cells were treated with adipogenicinducingmedium for 28 days. The adipogenic differentiation of the EnSC was assessed by cellular morphology and further confirmed by Oil Red O staining and RTPCR.The BM-MSC differentiated into adipocytes in the presence of adipogenicstimuli for 3 weeks.Results: The flow cytometric analysis showed that the cells were positive for CD90,CD105, CD146 and were negative for CD31, CD34.We showed that the key adipocytesmarker PPARa was expressed in mRNA level after 28 days post treatment(PT).Conclusion: According to our finding, it can be concluded that EnSCs represent auseful in vitro model for human adipogenesis, and provide opportunities to study the stages prior to commitment to the adipocyte lineage. [ABSTRACT FROM AUTHOR]

As the ocular disorders causing the long-term blindness or optical abnormalities of the ocular tissue entirely affect life quality, an insight into their corresponding pathogenesis and the expansion of attitudes authorizing earlier detection and treatment need more consideration. Though current therapeutics result in desirable outcomes, they do not offer an inclusive solution for hindrance of development of visual impairment to blindness. Accordingly, stem cells because of their particular competencies have attracted pronounced attention to be applied in regenerative medicine of ocular diseases. In the last decades, a wide spectrum of stem cells surrounding Mesenchymal Stem/Stromal Cells (MSC), Neural Stem Cells (NSCs), and embryonic/induced pluripotent stem cells (ESCs/iPSCs) accompanied by Müller glia, ciliary epithelia-derived stem cells, and Retinal Pigment Epithelial (RPE) stem cells have been widely investigated to report their safety and efficacy in preclinical models and also human subjects. In this regard and the first interventions, RPE cell suspensions were successfully utilized to ameliorate visual defects of the patients suffering from Age-related Macular Degeneration (AMD) after subretinal transplantation. Herein, we will explain the pathogenesis of ocular diseases and highlight the novel discoveries and recent findings in the context of stem cell-based therapies in these disorders, focusing on the last decade's in vivo reports., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)