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Cytotherapy

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https://www.readbyqxmd.com/read/29150086/the-ex-vivo-toll-like-receptor-7-tolerance-induction-in-donor-lymphocytes-prevents-murine-acute-graft-versus-host-disease
#1
Nikolaos Zogas, Garyfalia Karponi, Fotios Iordanidis, Stylianos Malasidis, Vasilios Paraskevas, Anastasia Papadopoulou, Zaharias George Scouras, Achilles Anagnostopoulos, Evangelia Yannaki
BACKGROUND AIMS: Acute graft-versus-host disease (aGVHD) remains a major cause of morbidity and mortality after allogeneic hematopoietic stem cell transplantation, mediated by alloreactive donor T cells. Toll-like receptors (TLRs), a family of conserved pattern-recognition receptors (PRRs), represent key players in donors' T-cell activation during aGVHD; however, a regulatory, tolerogenic role for certain TLRs has been recognized in a different context. We investigated whether the ex vivo-induced TLR-2,-4,-7 tolerance in donor cells could prevent alloreactivity in a mismatched transplantation model...
November 14, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29122516/placenta-derived-plx-pad-mesenchymal-like-stromal-cells-are-efficacious-in-rescuing-blood-flow-in-hind-limb-ischemia-mouse-model-by-a-dose-and-site-dependent-mechanism-of-action
#2
Efrat Zahavi-Goldstein, Michal Blumenfeld, Dana Fuchs-Telem, Lena Pinzur, Shy Rubin, Zami Aberman, Noa Sher, Racheli Ofir
BACKGROUND: In peripheral artery disease (PAD), blockage of the blood supply to the limbs, most frequently the legs, leads to impaired blood flow and tissue ischemia. Pluristem's PLX-PAD cells are placenta-derived mesenchymal stromal-like cells currently in clinical trials for the treatment of peripheral artery diseases. METHODS: In this work, the hind limb ischemia (HLI) mouse model was utilized to study the efficacy and mechanism of action of PLX-PAD cells. ELISA assays were performed to characterize and quantitate PLX-PAD secretions in vitro...
November 6, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29111380/hypoxia-inducible-factor-1%C3%AE-may-regulate-the-commitment-of-mesenchymal-stromal-cells-toward-angio-osteogenesis-by-mirna-675-5p
#3
Viviana Costa, Lavinia Raimondi, Alice Conigliaro, Francesca Salamanna, Valeria Carina, Angela De Luca, Daniele Bellavia, Riccardo Alessandro, Milena Fini, Gianluca Giavaresi
BACKGROUND AIMS: During bone formation, angiogenesis and osteogenesis are regulated by hypoxia, which is able to induce blood vessel formation, as well as recruit and differentiate human mesenchymal stromal cells (hMSCs). The molecular mechanisms involved in HIF-1α response and hMSC differentiation during bone formation are still unclear. This study aimed to investigate the synergistic role of hypoxia and hypoxia-mimetic microRNA miR-675-5p in angiogenesis response and osteo-chondroblast commitment of hMSCs...
October 27, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29107739/comparative-restoration-of-acute-liver-failure-by-menstrual-blood-stem-cells-compared-with-bone-marrow-stem-cells-in-mice-model
#4
Mina Fathi-Kazerooni, Gholamreza Tavoosidana, Masoud Taghizadeh-Jahed, Sayeh Khanjani, Hananeh Golshahi, Caroline E Gargett, Haleh Edalatkhah, Somaieh Kazemnejad
BACKGROUND AIMS: The application of menstrual blood stem cells (MenSCs) in regenerative medicine is gaining increasing attention. The aim of this study was to investigate the therapeutic potential of MenSCs compared with bone marrow-derived stem cells (BMSCs) in an animal model of CCl4-induced acute hepatic failure. METHODS: Injured Balb/C mice were divided into multiple groups and received MenSCs, BMSCs or hepatocyte progenitor-like (HPL) cells derived from these cells...
October 26, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29107738/extracellular-vesicles-released-from-mesenchymal-stromal-cells-stimulate-bone-growth-in-osteogenesis-imperfecta
#5
Satoru Otsuru, Laura Desbourdes, Adam J Guess, Ted J Hofmann, Theresa Relation, Takashi Kaito, Massimo Dominici, Masahiro Iwamoto, Edwin M Horwitz
BACKGROUND: Systemic infusion of mesenchymal stromal cells (MSCs) has been shown to induce acute acceleration of growth velocity in children with osteogenesis imperfecta (OI) despite minimal engraftment of infused MSCs in bones. Using an animal model of OI we have previously shown that MSC infusion stimulates chondrocyte proliferation in the growth plate and that this enhanced proliferation is also observed with infusion of MSC conditioned medium in lieu of MSCs, suggesting that bone growth is due to trophic effects of MSCs...
October 26, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29079356/parkin-overexpression-in-human-mesenchymal-stromal-cells-from-wharton-s-jelly-suppresses-6-hydroxydopamine-induced-apoptosis-potential-therapeutic-strategy-in-parkinson-s-disease
#6
A R Bonilla-Porras, A Arevalo-Arbelaez, J F Alzate-Restrepo, C Velez-Pardo, M Jimenez-Del-Rio
BACKGROUND AIMS: Stem cell transplantation is an excellent option for regenerative or replacement therapy. However, deleterious microenvironmental and endogenous factors (e.g., oxidative stress) compromise ongoing graft survival and longevity. Therefore, (transient or stable) genetically modified cells may be reasonably thought to resist oxidative stress-induced damage. Genetic engineering of mesenchymal stromal cells (MSCs) obtained from Wharton's jelly tissue may offer some therapeutic potential...
October 24, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29074333/improvement-of-portal-venous-pressure-in-cirrhotic-rat-livers-by-systemic-treatment-with-adipose-tissue-derived-mesenchymal-stromal-cells
#7
Sandra Brückner, Alexander Zipprich, Madlen Hempel, Antje Thonig, Fabian Schwill, Martin Roderfeld, Elke Roeb, Bruno Christ
BACKGROUND AIMS: Portal hypertension is the main cause of complications in cirrhosis caused primarily by extensive fibrosis. Both anti-fibrotic and pro-fibrotic properties of mesenchymal stromal cells (MSCs) have been described in various animal models of liver fibrosis. Therefore, the impact of MSCs on portal hypertension and fibrosis should be investigated in an animal model of liver cirrhosis. METHODS: The effect of systemic treatment with adipose tissue-derived MSCs, pre-differentiated into hepatocytic cells, was investigated in a rat model of liver cirrhosis induced by chronic inhalation of carbon tetrachloride...
October 23, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29066052/strategy-for-an-abbreviated-in-house-qualification-of-a-commercially-available-rapid-microbiology-method-rmm-for-canadian-regulatory-approval
#8
Jolene Chisholm, Shashank Bhatt, Amélie Chaboureau, Sowmya Viswanathan
BACKGROUND AIMS: Cell therapy products (CTP) typically require full sterility, endotoxin and Mycoplasma testing before product release. Often this is not feasible with fresh cells, and sponsors may rely on rapid microbiological methods (RMM). RMM must be qualified in-house using the sponsor's facilities, equipment, consumables, cells and matrices to meet regulatory approval. Herein, we present a cost-effective strategy to conduct an in-house abbreviated qualification of a commercially available RMM kit to meet Health Canada regulatory requirements...
October 20, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29056548/human-induced-pluripotent-stem-cell-derived-lung-progenitor-and-alveolar-epithelial-cells-attenuate-hyperoxia-induced-lung-injury
#9
Mehdi Shafa, Lavinia Iuliana Ionescu, Arul Vadivel, Jennifer J P Collins, Liqun Xu, Shumei Zhong, Martin Kang, Geneviève de Caen, Manijeh Daneshmand, Jenny Shi, Katherine Z Fu, Andrew Qi, Ying Wang, James Ellis, William L Stanford, Bernard Thébaud
BACKGROUND AIMS: Bronchopulmonary dysplasia (BPD), a chronic lung disease characterized by disrupted lung growth, is the most common complication in extreme premature infants. BPD leads to persistent pulmonary disease later in life. Alveolar epithelial type 2 cells (AEC2s), a subset of which represent distal lung progenitor cells (LPCs), promote normal lung growth and repair. AEC2 depletion may contribute to persistent lung injury in BPD. We hypothesized that induced pluripotent stem cell (iPSC)-derived AECs prevent lung damage in experimental oxygen-induced BPD...
October 20, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29056549/adoptive-transfer-of-natural-killer-cells-in-combination-with-chemotherapy-improves-outcomes-of-patients-with-locally-advanced-colon-carcinoma
#10
Lingyu Li, Wei Li, Chang Wang, Xu Yan, Yizhuo Wang, Chao Niu, Xiaoying Zhang, Min Li, Huimin Tian, Cheng Yao, Haofan Jin, Fujun Han, Dongsheng Xu, Wei Han, Dan Li, Jiuwei Cui
BACKGROUND: Despite the availability of multiple treatment strategies, patients with advanced colon carcinoma (CC) have poor prognoses. The aim of this study was to evaluate the efficacy and safety of natural killer (NK) cell therapy in combination with chemotherapy in patients with locally advanced CC. METHODS: We assessed the cytotoxicity of NK cells to CC cells (CCs) and CC stem cells (CSCs) pre-treated with 5-fluorouracil or oxaliplatin in vitro. Then, an open-label cohort study was conducted with locally advanced CC patients who had received radical resection...
October 19, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29050915/decellularized-matrix-of-adipose-derived-mesenchymal-stromal-cells-enhanced-retinal-progenitor-cell-proliferation-via-the-akt-erk-pathway-and-neuronal-differentiation
#11
Jing Ji, Dandan Zhang, Wei Wei, Bingqiao Shen, Yi Zhang, Yuyao Wang, Zhimin Tang, Ni Ni, Hao Sun, Jiaqiang Liu, Xianqun Fan, Ping Gu
BACKGROUND AIMS: Retinal progenitor cells (RPCs) are a promising cell therapy treatment for retinal degenerative diseases. However, problems with limited proliferation ability and differentiation preference toward glia rather than neurons restrict the clinical application of these RPCs. The extracellular matrix (ECM) has been recognized to provide an appropriate microenvironment to support stem cell adhesion and direct cell behaviors, such as self-renewal and differentiation. METHODS: In this study, decellularized matrix of adipose-derived mesenchymal stromal cells (DMA) was manufactured using a chemical agent method (0...
October 16, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29037943/mesenchymal-stromal-cells-protect-human-cardiomyocytes-from-amyloid-fibril-damage
#12
Yi Lin, Marta Marin-Argany, Christopher J Dick, Keely R Redhage, Luis M Blancas-Mejia, Peggy Bulur, Greg W Butler, Michael C Deeds, Benjamin J Madden, Angela Williams, Jonathan S Wall, Allan Dietz, Marina Ramirez-Alvarado
BACKGROUND AIMS: Light chain (AL) amyloidosis is a protein misfolding disease characterized by extracellular deposition of immunoglobulin light chains (LC) as amyloid fibrils. Patients with LC amyloid involvement of the heart have the worst morbidity and mortality. Current treatments target the plasma cells to reduce further production of amyloid proteins. There is dire need to understand the mechanisms of cardiac tissue damage from amyloid to develop novel therapies. We recently reported that LC soluble and fibrillar species cause apoptosis and inhibit cell growth in human cardiomyocytes...
October 13, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29037942/evaluating-the-quality-of-a-cell-counting-measurement-process-via-a-dilution-series-experimental-design
#13
Sumona Sarkar, Steven P Lund, Ravi Vyzasatya, Padmavathy Vanguri, John T Elliott, Anne L Plant, Sheng Lin-Gibson
BACKGROUND AIMS: Cell counting measurements are critical in the research, development and manufacturing of cell-based products, yet determining cell quantity with accuracy and precision remains a challenge. Validating and evaluating a cell counting measurement process can be difficult because of the lack of appropriate reference material. Here we describe an experimental design and statistical analysis approach to evaluate the quality of a cell counting measurement process in the absence of appropriate reference materials or reference methods...
October 13, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29037941/pre-clinical-assessment-of-the-lovo-device-for-dimethyl-sulfoxide-removal-and-cell-concentration-in-thawed-hematopoietic-progenitor-cell-grafts
#14
Bechara Mfarrej, Guillaume Bouchet, Jérôme Couquiaud, Lionel Regimbaud, Steven Binninger, Mathieu Mercier, Claude Lemarié, Pascal Houzé, Christian Chabannon, Boris Calmels
BACKGROUND: Cryopreserved hematopoietic progenitor cell (HPC) grafts are widely infused to patients with malignant and nonmalignant conditions. Despite reduction of immediate side effects linked to dimethyl sulfoxide (DMSO), cell debris-containing grafts and comparable hematopoietic engraftment between washed and unwashed cryopreserved products, bedside infusion of thawed HPC grafts is still preferred. Introduction of automated devices is important for standardization and consistency of graft manipulation...
October 13, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29037940/hyperbaric-oxygen-treatment-effects-on-in-vitro-cultured-umbilical-cord-blood-cd34-cells
#15
Kiang Yien Cheung, Abigale Berry, Dandan Li, Omar S Aljitawi
BACKGROUND AIMS: Umbilical cord blood (UCB) provides an alternative source for hematopoietic stem/progenitor cells (HSPCs) in the treatment of hematological malignancies. However, clinical usage is limited due to the low quantity of HSPCs in each unit of cord blood and defects in bone marrow homing. Hyperbaric oxygen (HBO) is among the more recently explored methods used to improve UCB homing and engraftment. HBO works by lowering the host erythropoietin before UCB infusion to facilitate UCB HSPC homing, because such UCB cells are not directly exposed to HBO...
October 13, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29033284/comments-on-therapy-with-mesenchymal-stromal-cells-or-conditioned-medium-reverse-cardiac-alterations-in-a-high-fat-diet-induced-obesity-model
#16
LETTER
Nareshwaran Gnanasegaran
No abstract text is available yet for this article.
October 12, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29029956/adipose-stem-cell-neurospheres-for-huntington-s-disease
#17
LETTER
Seung Chan Kim, Wooseok Im
No abstract text is available yet for this article.
October 10, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28988693/circulating-cd8-cd28-suppressor-t-cells-tied-to-poorer-prognosis-among-metastatic-breast-cancer-patients-receiving-adoptive-t-cell-therapy-a-cohort-study
#18
Qingkun Song, Jun Ren, Xinna Zhou, Xiaoli Wang, Guohong Song, Amy Hobeika, Yanhua Yuan, Herbert Kim Lyerly
BACKGROUND AIMS: This study aimed to determine the prognostic value of circulating CD8(+)CD28(-) T lymphocytes among breast cancer patients treated with adoptive T-lymphocyte immunotherapy after chemotherapy. METHODS: Two hundred and thirty-two breast cancer patients underwent adoptive T-cell immunotherapy. Circulating CD8(+)CD28(-) proportion was measured by flow cytometry. Median proportion of CD8(+)CD28(-) was 24.2% and set as the categorical cutoff value for further analysis...
October 4, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28988692/the-survey-on-cellular-and-tissue-engineered-therapies-in-europe-and-neighboring-eurasian-countries-in-2014-and-2015
#19
Hilary Ireland, Max H P Gay, Helen Baldomero, Barbara De Angelis, Hossein Baharvand, Mark W Lowdell, Jakob Passweg, Ivan Martin
BACKGROUND AIMS: With the support of five established scientific organizations, this report, the seventh of its kind, describes activity in Europe for the years 2014 and 2015 in the area of cellular and tissue-engineered therapies, excluding hematopoietic stem cell (HSC) treatments for the reconstitution of hematopoiesis. METHODS: In 2015 [respectively 2014], 205 [276] teams from 32 countries responded to the cellular and tissue-engineered therapy survey; 178 [126] teams reported treating 3686 [2665] patients...
October 4, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28986174/cell-density-dimethylsulfoxide-concentration-and-needle-gauge-affect-hydrogel-induced-bone-marrow-mesenchymal-stromal-cell-viability
#20
Xia Chen, Alexander G Foote, Susan L Thibeault
Mesenchymal stromal cells (MSCs) have shown potential therapeutic benefits for a range of medical disorders and continue to be a focus of intense scientific investigation. Transplantation of MSCs into injured tissue can improve wound healing, tissue regeneration and functional recovery. However, implanted cells rapidly lose their viability or fail to integrate into host tissue. Hydrogel-seeded bone marrow (BM)-MSCs offer improved viability in response to mechanical forces caused by syringe needles, cell density and dimethylsulfoxide (DMSO) concentration, which in turn, will help to clarify which factors are important for enhancing biomaterial-induced cell transplantation efficiency and provide much needed guidance for clinical trials...
October 3, 2017: Cytotherapy
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