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Cytotherapy

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https://www.readbyqxmd.com/read/28647274/sonic-hedgehog-pathway-suppression-and-reactivation-accelerates-differentiation-of-rat-adipose-derived-mesenchymal-stromal-cells-toward-insulin-producing-cells
#1
Dian Dayer, Mahmoud Hashemi Tabar, Eskandar Moghimipour, Mohammad Reza Tabandeh, Ata A Ghadiri, Elham Allah Bakhshi, Mahmoud Orazizadeh, Mohammad Ali Ghafari
BACKGROUND AIMS: Sonic hedgehog (Shh) is an intercellular signaling molecule that regulates pancreas development in mammals. Manipulation of Shh signaling pathway can be used as reliable approach to improve the generation of functional insulin-producing cells (IPCs) from mesenchymal stromal cells (MSCs). METHODS: In the present study, a novel differentiation protocol was used to produce IPCs from adipose tissue-derived MSCs (ATDMSCs) based on sequential inhibition and reactivation of Shh pathway...
June 21, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28645734/the-influence-of-temperature-treatment-before-cryopreservation-on-the-viability-and-potency-of-cryopreserved-and-thawed-cd34-and-cd45-cord-blood-cells
#2
Svenja Schwandt, Stefanie Liedtke, Gesine Kogler
BACKGROUND: Hematopoietic stem cell (HSC) viability and potency is crucial for qualified cord blood (CB) transplants. This study analyzes time and temperature condition before cryopreservation for the viability of CD34(+)/CD45(+) cells after cryopreservation. METHODS: Cell viabilities were determined by antibody co-staining with 7-aminoactinomycin D detecting necrotic cells, and subsequent flow cytometric analysis. Additionally, Annexin V staining for determination of apoptotic cells and colony-forming unit (CFU) assays for testing functional potency of HSCs were performed...
June 20, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28645733/low-interleukin-2-concentration-favors-generation-of-early-memory-t-cells-over-effector-phenotypes-during-chimeric-antigen-receptor-t-cell-expansion
#3
Tanja Kaartinen, Annu Luostarinen, Pilvi Maliniemi, Joni Keto, Mikko Arvas, Heini Belt, Jonna Koponen, Petri I Mäkinen, Angelica Loskog, Satu Mustjoki, Kimmo Porkka, Seppo Ylä-Herttuala, Matti Korhonen
No abstract text is available yet for this article.
June 20, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28645732/severe-infusion-related-toxicity-after-a-second-unrelated-cord-blood-transplantation
#4
LETTER
Susumu Tanoue, Takaaki Konuma, Seiko Kato, Maki Oiwa-Monna, Masamichi Isobe, Arinobu Tojo, Satoshi Takahashi
No abstract text is available yet for this article.
June 20, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28606762/transient-warming-events-occurring-after-freezing-impairs-umbilical-cord-derived-mesenchymal-stromal-cells-functionality
#5
Dominique Chabot, Tony Tremblay, Isabelle Paré, Renée Bazin, Lionel Loubaki
BACKGROUND: Mesenchymal stromal cells (MSCs) have shown promising results for the treatment of refractory acute graft-versus-host disease. While safety of MSC infusion has been demonstrated, the use of cryopreserved MSCs in clinical trials has raised concerns regarding the retention of their functional activity. This has led to the recommendation by experts in the field to use freshly harvested MSCs, even though this approach is much less practical from a logistic point of view. In the present study, we revisited the impact of cryopreservation on MSC functionality and addressed the possibility that warming events on frozen cells rather than cryopreservation per se could impact MSC functionality...
June 9, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28571657/transplantation-of-bone-marrow-stromal-stem-cells-overexpressing-tropomyosin-receptor-kinase-a-for-peripheral-nerve-repair
#6
Meige Zheng, Junxiu Duan, Zhendan He, Zhiwei Wang, Shuhua Mu, Zhiwen Zeng, Junle Qu, Dong Wang, Jian Zhang
BACKGROUND AIMS: Previously we reported that overexpression of tropomyosin receptor kinase A (TrkA) could improve the survival and Schwann-like cell differentiation of bone marrow stromal stem cells (BMSCs) in nerve grafts for bridging rat sciatic nerve defects. The aim of this study was to investigate how TrkA affects the efficacy of BMSCs transplantation on peripheral nerve regeneration and functional recovery. METHODS: Rat BMSCs were infected with recombinant lentiviruses to construct TrkA-overexpressing BMSCs and TrkA-shRNA-expressing BMSCs, which were then seeded in acellular nerve allografts for bridging 10-mm rat sciatic nerve defects...
May 29, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28571656/development-of-a-novel-method-for-amniotic-fluid-stem-cell-storage
#7
Manuela Zavatti, Francesca Beretti, Francesca Casciaro, Giuseppina Comitini, Fabrizia Franchi, Veronica Barbieri, Laura Bertoni, Anto De Pol, Giovanni B La Sala, Tullia Maraldi
BACKGROUND AIMS: Current procedures for collection of human amniotic fluid stem cells (hAFSCs) indicate that cells cultured in a flask for 2 weeks can then be used for research. However, hAFSCs can be retrieved directly from a small amount of amniotic fluid that can be obtained at the time of diagnostic amniocentesis. The aim of this study was to determine whether direct freezing of amniotic fluid cells is able to maintain or improve the potential of a sub-population of stem cells. METHODS: We compared the potential of the hAFSCs regarding timing of freezing, cells obtained directly from amniotic fluid aspiration (D samples) and cells cultured in a flask before freezing (C samples)...
May 29, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28566211/carcinogenicity-efficiency-and-biosafety-analysis-in-xeno-free-human-amniotic-stem-cells-for-regenerative-medical-therapies
#8
Tatsanee Phermthai, Sasiprapa Thongbopit, Puttachart Pokathikorn, Suparat Wichitwiengrat, Suphakde Julavijitphong, Nednapis Tirawanchai
BACKGROUND AIMS: Human amniotic mesenchymal stromal cells (hAMSCs) are a potent and attractive stem cell source for use in regenerative medicine. However, the safe uses of therapeutic-grade MSCs are equally as important as the efficiency of MSCs. To provide efficient, clinic-compliant (safe for therapeutic use) MSCs, hAMSC lines that completely eliminate the use of animal products and have been characterized for carcinogenicity and biosafety are required. METHODS: Here, we have efficiently generated 10 hAMSC lines under human umbilical cord blood serum (hUCS)-supplemented medium (xeno-free culture) and fetal bovine serum (FBS)-supplemented medium (standard culture) and investigated carcinogenicity and immunosuppressive properties in the resultant hAMSC lines...
May 26, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28532627/regenerative-medicine-in-hearing-recovery
#9
REVIEW
Edi Simoni, Giulia Orsini, Milvia Chicca, Simone Bettini, Valeria Franceschini, Alessandro Martini, Laura Astolfi
Hearing loss, or deafness, affects 360 million people worldwide of which about 32 million are children. Deafness is irreversible when it involves sensory hair cell death because the regenerative ability of these cells is lost in mammals after embryo development. The therapeutic strategies for deafness include hearing aids and/or implantable devices. However, not all patients are eligible or truly benefit from these medical devices. Regenerative medicine based on stem cell application could play a role in both improvement of extant medical devices and in vivo recovery of auditory function by regeneration of inner ear cells and neurons...
May 19, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28438482/manufacture-and-preparation-of-human-placenta-derived-mesenchymal-stromal-cells-for-local-tissue-delivery
#10
Lee Lankford, Y Julia Chen, Zoe Saenz, Priyadarsini Kumar, Connor Long, Diana Farmer, Aijun Wang
BACKGROUND: In this study we describe the development of a Current Good Manufacturing Practice (CGMP)-compliant process to isolate, expand and bank placenta-derived mesenchymal stromal cells (PMSCs) for use as stem cell therapy. We characterize the viability, proliferation and neuroprotective secretory profile of PMSCs seeded on clinical-grade porcine small intestine submucosa extracellular matrix (SIS-ECM; Cook Biotech). METHODS: PMSCs were isolated from early gestation placenta chorionic villus tissue via explant culture...
April 21, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28434806/fibronectin-adherent-peripheral-blood-derived-mononuclear-cells-as-paclitaxel-carriers-for-glioblastoma-treatment-an-in-vitro-study
#11
Marco Paolo Schiariti, Francesco Restelli, Paolo Ferroli, Anna Benetti, Angiola Berenzi, Anna Ferri, Valentina Ceserani, Emilio Ciusani, Moris Cadei, Gaetano Finocchiaro, Augusto Pessina, Eugenio Parati, Roberto Pallini, Giulio Alessandri
BACKGROUND: Glioblastoma (GBM) represents the most aggressive malignant brain tumor in adults, with a risible median life expectancy despite gold standard treatment. Novel drug-delivery methods have been explored. Here we evaluated the possibility to use mononuclear cells (MCs) belonging to the monocytic-dendritic lineage as drug-carrier. METHODS: MCs were obtained from 10 patients harboring a GBM, and from healthy volunteers, considered as controls. GBM tissue was also obtained from patients...
April 20, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28433516/intravenous-mesenchymal-stromal-cell-therapy-for-inflammatory-bowel-disease-lessons-from-the-acute-graft-versus-host-disease-experience
#12
REVIEW
Laurie S Conklin, Patrick J Hanley, Jacques Galipeau, John Barrett, Cather M Bollard
Bone marrow-derived mesenchymal stromal cells (BMSCs) are primitive, supportive cells of the bone marrow with tri-lineage potential to differentiate into bone, cartilage, fat and muscle. These cells possess both in vitro and in vivo immunomodulatory and wound-healing properties. Several studies have demonstrated efficacy of intravenously administered BMSCs in treating acute graft-versus-host disease (GvHD). Use of intravenous (IV) BMSCs in inflammatory bowel diseases (IBD) in humans has been limited to small studies in adults, but results have been promising...
April 19, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28433515/understanding-clinical-development-of-chimeric-antigen-receptor-t-cell-therapies
#13
Sofieke de Wilde, Henk-Jan Guchelaar, Maarten Laurens Zandvliet, Pauline Meij
BACKGROUND AIMS: In the past decade, many clinical trials with gene- and cell-based therapies (GCTs) have been performed. Increased interest in the development of these drug products by various stakeholders has become apparent. Despite this growth in clinical studies, the number of therapies receiving marketing authorization approval (MAA) is lagging behind. To enhance the success rate of GCT development, it is essential to better understand the clinical development of these products...
April 19, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28433514/cox-2-inhibition-potentiates-mouse-bone-marrow-stem-cell-engraftment-and-differentiation-mediated-wound-repair
#14
Ramasatyaveni Geesala, Neha R Dhoke, Amitava Das
BACKGROUND: Engraftment of transplanted stem cells is often limited by cytokine and noncytokine proinflammatory mediators at the injury site. We examined the role of Cyclooxygenase-2 (Cox-2)-induced cytokine-mediated inflammation on engraftment of transplanted bone marrow stem cells (BMSCs) at the wound site. METHODS: BMSCs isolated from male C57/BL6J mice were transplanted onto excisional splinting wounds in syngenic females in presence or absence of celecoxib, Cox-2 specific inhibitor (50 mg/kg, body weight [b wt]), to evaluate engraftment and wound closure...
April 19, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28428057/natural-killer-cells-differentiated-in-vitro-from-cord-blood-cd34-cells-are-more-advantageous-for-use-as-an-immunotherapy-than-peripheral-blood-and-cord-blood-natural-killer-cells
#15
Anna Domogala, Michael Blundell, Adrian Thrasher, Mark W Lowdell, J Alejandro Madrigal, Aurore Saudemont
BACKGROUND AIMS: Natural killer (NK) cells have the potential to become a successful immunotherapy as they can target malignant cells without being direct effectors of graft-versus-host disease. Our group has previously shown that large numbers of functional NK cells can be differentiated in vitro from umbilical cord blood (CB) CD34(+) cells. To produce a clinically relevant and effective immunotherapy, we hypothesized that it is essential that the NK cells are able to proliferate and persist in vivo while maintaining an optimal activation status and killing capacity...
April 17, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28411126/low-interleukin-2-concentration-favors-generation-of-early-memory-t-cells-over-effector-phenotypes-during-chimeric-antigen-receptor-t-cell-expansion
#16
Tanja Kaartinen, Annu Luostarinen, Pilvi Maliniemi, Joni Keto, Mikko Arvas, Heini Belt, Jonna Koponen, Angelica Loskog, Satu Mustjoki, Kimmo Porkka, Seppo Ylä-Herttuala, Matti Korhonen
BACKGROUND: Adoptive T-cell therapy offers new options for cancer treatment. Clinical results suggest that T-cell persistence, depending on T-cell memory, improves efficacy. The use of interleukin (IL)-2 for in vitro T-cell expansion is not straightforward because it drives effector T-cell differentiation but does not promote the formation of T-cell memory. We have developed a cost-effective expansion protocol for chimeric antigen receptor (CAR) T cells with an early memory phenotype...
April 11, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28395942/ex-vivo-t-cell-depleted-allogeneic-stem-cell-transplantation-for-hematologic-malignancies-the-search-for-an-optimum-transplant-t-cell-dose-and-t-cell-add-back-strategy
#17
Prathima Anandi, Xin Tian, Sawa Ito, Pawel Muranski, Puja D Chokshi, Noelle Watters, Upneet Chawla, Nancy Hensel, David F Stroncek, Minoo Battiwalla, A John Barrett
BACKGROUND: T-cell depletion (TCD) of allogeneic stem cell transplants (SCT) can reduce graft-versus-host disease but may negatively affect transplant outcome by delaying immune recovery. To optimize TCD in HLA-matched siblings with hematologic malignancies, we explored varying the transplant CD3+ T-cell dose between 2 and 50 × 10(4)/kg (corresponding to 3-4 log depletion) and studied the impact of 0-6 × 10(7)/kg CD3+ donor lymphocyte infusion (DLI) "add-back" on immune recovery post-SCT...
April 7, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28392314/persistence-and-proliferation-of-human-mesenchymal-stromal-cells-in-the-right-ventricular-myocardium-after-intracoronary-injection-in-a-large-animal-model-of-pulmonary-hypertension
#18
Roza Badr Eslam, Kevin Croce, Fernanda Marinho Mangione, Robert Musmann, Jane A Leopold, Richard N Mitchell, Aaron B Waxman
BACKGROUND AIMS: In this study, we demonstrate long-term persistence of human mesenchymal stromal cells (hMSCs) after intracoronary injection in a large animal model of pulmonary hypertension (PH). METHODS: Commercially available placenta-derived hMSCs were used. Experiments were conducted on 14 female Yorkshire swine. Four animals served as controls, and 10 underwent pulmonary vein (PV) banding. After 12 ± 2 weeks, PH and PV dysfunction were confirmed by right heart catheterization and cardiac magnetic resonance imaging...
April 6, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28391986/gene-products-promoting-remyelination-are-up-regulated-in-a-cell-therapy-product-manufactured-from-banked-human-cord-blood
#19
Paula Scotland, Susan Buntz, Pamela Noeldner, Arjun Saha, Tracy Gentry, Joanne Kurtzberg, Andrew E Balber
BACKGROUND AIMS: DUOC-01, a cell product being developed to treat demyelinating conditions, is composed of macrophages that arise from CD14(+) monocytes in the mononuclear cell (MNC) population of banked cord blood (CB). This article demonstrates that expression of multiple gene products that promote remyelination is rapidly up-regulated during manufacturing of DUOC-01 from either MNC or purified CB CD14(+) monocytes. METHODS: Cell cultures were initiated with MNC or with immunoselected CD14(+) monocytes isolated from the same CB unit...
April 5, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28601257/commentary-on-co-culture-of-infrapatellar-fat-pad-derived-mscs-and-articular-chondrocytes-in-plasma-clot-for-cartilage-tissue-engineering
#20
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