Transplantation of human dental pulp stem cells in streptozotocin-induced diabetic rats

AbstractType 1 diabetes mellitus (T1DM) is a chronic metabolic disease caused by the destruction of pancreatic β-cells. Human dental pulp stem cells represent a promising source for cell-based therapies, owing to their easy, minimally invasive surgical access, and high proliferative capacity. It was reported that human dental pulp stem cells can differentiate into a pancreatic cell lineage in vitro; however , few studies have investigated their effects on diabetes. Our study aimed to investigate the therapeutic potential of intravenous and intrapancreatic transplantation of human dental pulp stem cells in a rat model of streptozotocin-induced type 1 diabetes. Forty Sprague Dawley male rats were randoml y categorized into four groups: control, diabetic (STZ), intravenous treatment group (IV), and intrapancreatic treatment group (IP). Human dental pulp stem cells (1 × 106 cells) or vehicle were injected into the pancreas or tail vein 7 days after streptozotocin injection. Fasting blood glucose levels were monitored weekly. Glucose tolerance test, rat and human serum insulin and C-peptide, pancreas histology, and caspase-3, vascular endothelial growth factor, and K i67 expression in pancreatic tissues were assessed 28 days post-transplantation. We found that both IV and IP transplantation of human dental pulp stem cells reduced blood glucose and increased levels of rat and human serum insulin and C-peptide. The cells engrafted and survived...
Source: Anatomical Science International - Category: Anatomy Source Type: research

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Conclusions: These results provide the rationale for a new approach to improve MSC therapy for T1DM by altering the gut microbiota.
Source: Theranostics - Category: Molecular Biology Authors: Tags: Research Paper Source Type: research
This study aims to investigate if the synergistically protective effect on damaged pancreatic tissues can be observed in STZ-induced DM rats with autologous transplantation of adipose-derived stem cells (ADSC) coupling with oral administration of resveratrol. Pathological conditions can be recognized in DM rats with pancreatic damage, including reduction of islet size, suppression of survival markers, downregulation of AMPK/Sirt1 axis, and activation of apoptotic signaling. Autologous transplantation of ADSC slightly improves pancreatic functions, whereas autologous transplantation of ADSC coupling with oral administration...
Source: The Chinese Journal of Physiology - Category: Physiology Tags: Chin J Physiol Source Type: research
Abstract Transplantation technologies of pancreatic islets as well as stem cell-derived pancreatic beta cells encapsulated in hydrogel for the induction of immunoprotection could advance to treat type 1 diabetes mellitus, if the hydrogel transplants acquire retrievability through mitigating foreign body reactions after transplantation. Here, we demonstrate that the diameter of the fiber-shaped hydrogel transplants determines both in vivo cellular deposition onto themselves and their retrievability. Specifically, we found that the in vivo cellular deposition is significantly mitigated when the diameter is 1.0 ...
Source: Biomaterials - Category: Materials Science Authors: Tags: Biomaterials Source Type: research
Authors: Wu Q, Zheng S, Qin Y, Zheng X, Chen H, Yang T, Zhang M Abstract Stem cells (SCs) therapy is a new promising therapeutic modality for type 1 diabetes (T1DM). We performed a systematic review and meta-analysis to evaluate the efficacy and safety of stem cells transplantation (SCT) in patients with T1DM. We searched five literature databases (MEDLINE, EMBASE, Web of Science, WanFang and CENTRAL) up to 31 October 2019. 29 studies (487 patients with T1DM) were included in our meta-analysis. There was no substantial publication bias. Meta-analysis showed the SCT had significant effect to decrease HbA1c (SMD, 1.4...
Source: Endocrine Journal - Category: Endocrinology Tags: Endocr J Source Type: research
This study is par for the course, looking at Japanese Olympic participants. Interestingly, it hints at the upper end of the dose-response curve for physical activity, in that a longer career as a professional athlete may be detrimental in comparison to lesser degrees of exercise and training. From this large, retrospective cohort study targeting 3546 Japanese Olympic athletes, we observed significant lower mortality among Olympians compared with the Japanese general population. The overall standardised mortality ratio (SMR) was 0.29. The results were consistent with previous studies conducted in other non-Asian co...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Differentiation Potential of Mesenchymal Stem Cells into Pancreatic β-Cells. Adv Exp Med Biol. 2020 Jan 31;: Authors: Aydin S, Sağraç D, Şahin F Abstract Stem cells having the capability to differentiate into other type of cells and renewing themselves, gained so much importance in recent years. Investigations in stem cells revealed that mesenchymal stem cells can successfully differentiate into other type of cells like adipocytes, hepatocytes, osteocytes, neurocytes and chondrocytes. In addition, these cells can also differentiate into insulin-producing beta cells. Insulin is a crucial h...
Source: Advances in Experimental Medicine and Biology - Category: Research Tags: Adv Exp Med Biol Source Type: research
Fight Aging! publishes news and commentary relevant to the goal of ending all age-related disease, to be achieved by bringing the mechanisms of aging under the control of modern medicine. This weekly newsletter is sent to thousands of interested subscribers. To subscribe or unsubscribe from the newsletter, please visit: https://www.fightaging.org/newsletter/ Longevity Industry Consulting Services Reason, the founder of Fight Aging! and Repair Biotechnologies, offers strategic consulting services to investors, entrepreneurs, and others interested in the longevity industry and its complexities. To find out m...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Conclusion: In a representative Brazilian population of T1DM patients, those with IDAA1c ≤ 9 presented a lower frequency of MC, as well as fewer episodes of hypoglycemia, in the month prior to the analysis.
Source: Frontiers in Endocrinology - Category: Endocrinology Source Type: research
Filomena Corbo1†, Giacomina Brunetti2*†, Pasquale Crupi3, Sara Bortolotti4, Giuseppina Storlino4, Laura Piacente5, Alessia Carocci1, Alessia Catalano1, Gualtiero Milani1, Graziana Colaianni4, Silvia Colucci2, Maria Grano4, Carlo Franchini1, Maria Lisa Clodoveo6, Gabriele D'Amato7 and Maria Felicia Faienza5 1Department of Pharmacy-Drug science, University of Bari Aldo Moro, Bari, Italy 2Section of Human Anatomy and Histology, Department of Basic and Medical Sciences, Neurosciences and Sense Organs, University of Bari Aldo Moro, Bari, Italy 3CREA-VE, Council for Agricultural Research and Economics&ndas...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Authors: Navarro-Tableros V, Gomez Y, Brizzi MF, Camussi G Abstract Insulin-dependent diabetes mellitus or type 1 diabetes mellitus (T1DM) is an auto-immune condition characterized by the loss of pancreatic β-cells. The curative approach for highly selected patients is the pancreas or the pancreatic islet transplantation. Nevertheless, these options are limited by a growing shortage of donor organs and by the requirement of immunosuppression.Xenotransplantation of porcine islets has been extensively investigated. Nevertheless, the strong xenoimmunity and the risk of transmission of porcine endogenous retroviru...
Source: Advances in Experimental Medicine and Biology - Category: Research Tags: Adv Exp Med Biol Source Type: research
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