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Regenerative Medicine

Anuradha Vaidya, Vaijayanti Kale, Mariyah Poonawala, Suprita Ghode
AIM: To examine the stromal cell-mediated effects of trans-resveratrol (TRV) on the fate of hematopoietic stem cells (HSCs). Materials & methods: Proliferation assay, cell cycle analysis, apoptosis assay, flow cytometry, western blot. RESULTS: Using KG1a, we show that TRV has a dose-dependent effect on the proliferation of hematopoietic cells. Its stimulatory effect was significantly enhanced when the cells were cocultured with stromal cells. Addition of TRV in the coculture of murine bone marrow-derived HSCs and stromal cells led to a significant increase in the pool of long-term HSCs...
May 10, 2018: Regenerative Medicine
D Adam Young, Nicolette Jackson, Catherine A Ronaghan, Collin Em Brathwaite, Thomas W Gilbert
AIM: Not all biologically derived materials elicit the same host response when used for reinforcement of ventral hernia repairs. This study aimed to evaluate the remodeling characteristics of the abdominal wall following reinforcement with urinary bladder matrix (UBM) in a large animal preclinical model of ventral hernia repair. MATERIALS & METHODS: Midline defects in 36 Yucatan minipigs were reinforced with UBM-derived surgical devices using a classic Rives-Stoppa-Wantz approach, and compared with primary repair controls...
May 4, 2018: Regenerative Medicine
Vitali Goriainov, Josephine K McEwan, Richard O C Oreffo, Doug G Dunlop
Joint replacements have proved a medical success providing symptomatic relief and return to mobility in many patients with arthritis. However, multiple revision surgeries due to joint failure can result in complex revision scenarios with significant bone tissue loss, in an elderly population, which poses a significant clinical challenge. Computer-aided design-computer-assisted manufacturing (CAD-CAM) prototyped bespoke implants are currently being used as an alternative and innovative approach for joint restoration in salvage cases, while the incorporation of autologous skeletal stem cells to optimize regenerative capacity can enhance implant osseointegration...
May 1, 2018: Regenerative Medicine
Sana H Surani, Aaron D Levine
AIM: To examine how the geographic distribution of pluripotent and adult stem cell research publications within the USA differs from other areas of biomedical research. MATERIALS & METHODS: Publication count data for pluripotent stem cell research, adult stem cell research and a comparison group representative of biomedical research more broadly were collected and analyzed for each US state from 2009 to 2016. RESULTS: The distribution of pluripotent stem cell research differed from the other fields with overperformance in pluripotent stem cell research observed in California, as well as Wisconsin, Massachusetts, Maryland and Connecticut...
May 1, 2018: Regenerative Medicine
M Terry Loghmani, Joseph A Roche
The 6th International Symposium on Regenerative Rehabilitation, hosted by the Alliance for Regenerative Rehabilitation Research and Training (AR3 T), included a preconference meeting of institutional representatives of the International Consortium of Regenerative Rehabilitation, keynote talks from distinguished scientists, platform and poster presentations from experts and trainees, panel discussions and postconference workshops. The following priorities were identified: increasing rigor in basic, preclinical and clinical studies, especially the use of better controls; developing better outcome measures for preclinical and clinical trials; focusing on developing more tissue-based interventions versus cell-based interventions; including regenerative rehabilitation in curricula of professional programs like occupational and physical therapy; and developing better instruments to quantify rehabilitative interventions...
April 3, 2018: Regenerative Medicine
Juan Pablo Acevedo, Ioannis Angelopoulos, Danny van Noort, Maroun Khoury
Microfabrication and microfluidics contribute to the research of cellular functions of cells and their interaction with their environment. Previously, it has been shown that microfluidics can contribute to the isolation, selection, characterization and migration of cells. This review aims to provide stem cell researchers with a toolkit of microtechnology (mT) instruments for elucidating complex stem cells functions which are challenging to decipher with traditional assays and animal models. These microdevices are able to investigate about the differentiation and niche interaction, stem cells transcriptomics, therapeutic functions and the capture of their secreted microvesicles...
March 20, 2018: Regenerative Medicine
Lauren A Jevons, Franchesca D Houghton, Rahul S Tare
The rise in the incidence of musculoskeletal diseases is attributed to an increasing ageing population. The debilitating effects of musculoskeletal diseases, coupled with a lack of effective therapies, contribute to huge financial strains on healthcare systems. The focus of regenerative medicine has shifted to pluripotent stem cells (PSCs), namely, human embryonic stem cells and human-induced PSCs, due to the limited success of adult stem cell-based interventions. PSCs constitute a valuable cell source for musculoskeletal regeneration due to their capacity for unlimited self-renewal, ability to differentiate into all cell lineages of the three germ layers and perceived immunoprivileged characteristics...
March 20, 2018: Regenerative Medicine
Jehan J El-Jawhari, Claire L Brockett, Ioannis Ktistakis, Elena Jones, Peter V Giannoudis
The ankle degeneration ranging from focal osteochondral lesions to osteoarthritis can cause a total joint function loss. With rising life expectancy and activity of the patients, various regenerative therapies were introduced aiming to preserve the joint function via the induction of cartilage and bone repair. Here, biological events and mechanical changes of the ankle degeneration were discussed. The regenerative therapies were reviewed versus the standard surgical treatment. We especially focused on the use of mesenchymal (multipotential) stromal cells (MSCs) highlighting their dual functions of regeneration and cell modulation with an emphasis on the emerging MSC-based clinical studies...
March 19, 2018: Regenerative Medicine
Cristaldi Marta, Mauceri Rodolfo, Tomasello Laura, Pizzo Giuseppe, Pizzolanti Giuseppe, Giordano Carla, Campisi Giuseppina
The aim of this narrative review is to investigate the implication of mesenchymal stem cells harvested from human dental pulp in in vivo bone tissue regeneration. We focused on studies related to roles of human dental pulp stem cells in in vivo bone regeneration. A total of 1021 studies were identified; after the assessment of eligibility, only 39 studies were included in the review. The evaluated information of the studies regards the experimental strategies (e.g., the isolation method, the scaffold, the in vivo animal models)...
March 19, 2018: Regenerative Medicine
Paola Campagnolo, Rajesh Katare, Paolo Madeddu
No abstract text is available yet for this article.
March 19, 2018: Regenerative Medicine
Zhe Zhou, Hao Yan, Yidong Liu, Dongdong Xiao, Wei Li, Qiong Wang, Yang Zhao, Kang Sun, Ming Zhang, Mujun Lu
AIM: The study investigated the feasibility of seeding adipose-derived stem cells (ASCs) onto a poly(ϵ-caprolactone)/chitosan (PCL/CS) scaffold for bladder reconstruction using a rat model of bladder augmentation. MATERIALS & METHODS: In the experimental group, the autologous ASCs were seeded onto the PCL/CS scaffold for bladder augmentation. An unseeded scaffold was used for bladder augmentation as control group. The sham group was also set. RESULT: 8 weeks after implantation, more densely smooth muscles were detected in the experimental group with a larger bladder capacity and more intensive blood vessels...
April 2018: Regenerative Medicine
Triantafyllos Didangelos, George Koliakos, Kokkona Kouzi, George Arsos, Katerina Kotzampassi, Konstantinos Tziomalos, Dimitrios Karamanos, Apostolos I Hatzitolios
We describe the case of a Type I diabetic patient with a refractory foot ulcer that remained unhealed for 2 years despite conventional therapy. Autologous adipose-derived stromal vascular fraction suspended in autologous platelet-rich plasma was applied to the wound, which completely healed within 1 month. The wound remained closed with no complications for a 2-year follow-up. Reporting of this and similar cases may lead to larger clinical trials that will prove the efficacy of this therapy that may offer accelerated healing and lessen the financial burden of more expensive therapeutic modalities...
April 2018: Regenerative Medicine
Andreas West Vilsbøll, Jakob Munk Mouritsen, Line Park Jensen, Nikolaj Bødker, Annette Willemoes Holst, Cristian P Pennisi, Lars Ehlers
AIM: To perform an early cost-effectiveness analysis of in vitro expanded myoblasts (IVM) and minced myofibers versus midurethral slings (MUS) for surgical treatment of female stress urinary incontinence. METHODS: Cost-effectiveness and sensitivity analyses were performed using a decision tree comprising previously published data and expert opinions. RESULTS & CONCLUSION: In the base case scenario, MUS was the cost-effective strategy with a negative incremental cost-effectiveness ratio compared with IVM and a positive incremental cost-effectiveness ratio compared with minced myofibers...
April 2018: Regenerative Medicine
Adam Price-Evans
No abstract text is available yet for this article.
April 2018: Regenerative Medicine
Kayvan Zainabadi
SIRT1 is an NAD+ -dependent deacetylase that acts as a nutrient sensitive regulator of longevity. SIRT1 also acts as a key regulator of mesenchymal stem cells (MSCs), adult stem cells that give rise to tissues such as bone, fat, muscle and cartilage. This review focuses on how SIRT1 regulates the self-renewal, multipotency and differentiation of MSCs. The variable role of SIRT1 in promoting the differentiation of MSCs towards certain lineages, while repressing others, will be examined within the broader context of aging, calorie restriction, and regenerative medicine...
April 2018: Regenerative Medicine
Yang Song, Hui Du, Chengxiang Dai, Li Zhang, Suke Li, David J Hunter, Liangjing Lu, Chunde Bao
AIM: This study aimed to evaluate the safety and therapeutic potential of autologous human adipose-derived mesenchymal stem cells (haMSCs) in patients with osteoarthritis. MATERIALS & METHODS: Safety and efficacy of haMSCs were preclinically assessed in vitro and in BALB/c-nu nude mice. 18 patients were enrolled and divided into three dose groups: the low-dose, mid-dose and high-dose group (1 × 107 , 2 × 107 and 5 × 107 cells, respectively), provided three injections and followed up for 96 weeks...
April 2018: Regenerative Medicine
Walter I Sussman, Ken Mautner, Gerard Malanga
AIM: Significant variability exists in the literature, with no clear consensus to the optimal protocol after a regenerative procedure. Given this uncertainty, the authors systematically reviewed the literature cataloging the different variables that may influence outcomes. METHODS: Search was limited to randomized clinical trials and prospective cohort studies of regenerative procedures for the treatment of tendinopathy. Variables were predetermined, and included: cyrotherapy, pre- and post-procedure nonsteroidal anti-inflammatory drugs use, recommendations for alternative pain medications, immobilization and duration of rest...
March 2018: Regenerative Medicine
Kar Wey Yong, Jane Ru Choi, Asdani Saifullah Dolbashid, Wan Kamarul Zaman Wan Safwani
An outstanding amount of resources has been used in research on manipulation of human stem cells, especially mesenchymal stem cells (MSCs), for various clinical applications. However, human MSCs have not been fully utilized in clinical applications due to restrictions with regard to their certain biosafety and bioefficacy concerns, for example, genetic abnormality, tumor formation, induction of host immune response and failure of homing and engraftment. This review summarizes the biosafety and bioefficacy assessment of human MSCs in terms of genetic stability, tumorigenicity, immunogenicity, homing and engraftment...
March 2018: Regenerative Medicine
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