Mesenchymal stem cell related therapies for cartilage lesions and osteoarthritis.

Mesenchymal stem cell related therapies for cartilage lesions and osteoarthritis. Am J Transl Res. 2019;11(10):6275-6289 Authors: Zhang R, Ma J, Han J, Zhang W, Ma J Abstract Osteoarthritis (OA) is a common degenerative joint disease characterized by cartilage degradation, synovitis, subchondral bone sclerosis and osteophyte formation. Current therapeutic approaches for OA are not curative and only temporarily alleviate symptoms. In recent years, pre-clinical experiments and clinical trials have demonstrated that mesenchymal stem cell (MSC) related therapy is a promising option for the treatment of cartilage lesions and OA. MSCs isolated from bone marrow (BMSCs) have been widely used in animal models and clinic practice to demonstrate their chondrogenic potential, however the incidence of BMSC donors is low. Adipose derived mesenchymal stem cells (AMSCs) are a more easily accessible source of stem cells for OA treatment. MSC related therapies for cartilage lesions and OA include tissue engineering of MSC transplantation, scaffold-free injection of stem cells and cell-free injection of exosomes into the injured joints. Although a great deal of effort is required at the basic and clinical research fronts, the promise is that improved cell-based therapies will ultimately lead to the repair of damaged or diseased joints, and MSC exosome therapy for OA could be a safer, cheaper and a more effective treatment modality. MSC related therapy is predicted to become...
Source: American Journal of Translational Research - Category: Research Tags: Am J Transl Res Source Type: research

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In this study, we investigated the link between AF and senescence markers through the assessment of protein expression in the tissue lysates of human appendages from patients in AF, including paroxysmal (PAF) or permanent AF (PmAF), and in sinus rhythm (SR). The major findings of the study indicated that the progression of AF is strongly related to the human atrial senescence burden as determined by p53 and p16 expression. The stepwise increase of senescence (p53, p16), prothrombotic (TF), and proremodeling (MMP-9) markers observed in the right atrial appendages of patients in SR, PAF, and PmAF points toward multiple inter...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Conclusion A great deal of progress is being made in the matter of treating aging: in advocacy, in funding, in the research and development. It can never be enough, and it can never be fast enough, given the enormous cost in suffering and lost lives. The longevity industry is really only just getting started in the grand scheme of things: it looks vast to those of us who followed the slow, halting progress in aging research that was the state of things a decade or two ago. But it is still tiny compared to the rest of the medical industry, and it remains the case that there is a great deal of work yet to be done at all...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Conclusion A great deal of progress is being made in the matter of treating aging: in advocacy, in funding, in the research and development. It can never be enough, and it can never be fast enough, given the enormous cost in suffering and lost lives. The longevity industry is really only just getting started in the grand scheme of things: it looks vast to those of us who followed the slow, halting progress in aging research that was the state of things a decade or two ago. But it is still tiny compared to the rest of the medical industry, and it remains the case that there is a great deal of work yet to be done at all...
Source: Fight Aging! - Category: Research Authors: Tags: Of Interest Source Type: blogs
In this study, by adenovirus-mediated delivery and inducible transgenic mouse models, we demonstrate the proliferation of both HCs and SCs by combined Notch1 and Myc activation in in vitro and in vivo inner ear adult mouse models. These proliferating mature SCs and HCs maintain their respective identities. Moreover, when presented with HC induction signals, reprogrammed adult SCs transdifferentiate into HC-like cells both in vitro and in vivo. Finally, our data suggest that regenerated HC-like cells likely possess functional transduction channels and are able to form connections with adult auditory neurons. Epige...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
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Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
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Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
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Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
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Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
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Source: Cell Transplantation - Category: Cytology Authors: Tags: Cell Transplant Source Type: research
Authors: Xia J, Minamino S, Kuwabara K, Arai S Abstract Stem cells are an undifferentiated cell population that has the ability to develop into many different cell types and also has the ability to repair damaged tissues in some cases. For a long time, the stem cell regenerative paradigm has been based on the assumption that progenitor cells play a critical role in tissue repair by means of their plasticity and differentiation potential. However, recent works suggest that the mechanism underlying the benefits of stem cell transplantation might relate to a paracrine modulatory effect rather than the replacement of a...
Source: BioScience Trends - Category: Biomedical Science Tags: Biosci Trends Source Type: research
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